阅读说明：本技术 一种免维护的气体密度继电器 (A kind of non-maintaining gas density relay ) 是由 金海勇 夏铁新 黄小泵 郭正操 常敏 王乐乐 于 2019-09-04 设计创作，主要内容包括：本申请提供了一种免维护的气体密度继电器,包括在气路上连通的气体密度继电器本体和第一气体密度检测传感器,以及分别与气体密度继电器本体和第一气体密度检测传感器相连接的智控单元；智控单元对同一气体压力下采集的第一压力值和第二压力值进行比对校验,和/或对同一气体温度下采集的第一温度值和第二温度值进行比对校验,或者对同一气体密度下采集的第一密度值和第二密度值进行比对校验；智控单元也可将接收的数据上传至后台,由后台进行数据比对。本申请用于解决对气体绝缘或灭弧的电气设备气体密度进行监测的同时,还完成对气体密度继电器的在线自检或相互校验,提高效率,无需维护,降低成本,保障电网安全运行。(This application provides a kind of non-maintaining gas density relays, it is included in the coconnected gas density relay ontology of gas circuit and first gas density detection sensor, and the intelligence control unit being connected respectively with gas density relay ontology and first gas density detection sensor；Verification is compared to the first pressure value and second pressure value that acquire under same gas pressure in intelligence control unit, and/or verification is compared to the first temperature value and second temperature value that acquire under same gas temperature, or verification is compared to the first density value and the second density value that acquire under same gas density；Received data can also be uploaded to backstage by intelligence control unit, carry out comparing by backstage.The application improves efficiency, Maintenance free for while solving to be monitored the electrical equipment gas density of gas-insulated or arc extinguishing, also completing On-line self-diagnosis or mutually verification to gas density relay, reduces cost, ensure electric power netting safe running.)

1. a kind of non-maintaining gas density relay characterized by comprising gas density relay ontology, first gas Density detection sensor and intelligence control unit；Wherein,

The first gas density detection sensor is connected to, for acquiring in gas circuit with the gas density relay ontology Pressure value and temperature value, and/or gas density value；The intelligence control unit and the gas density relay ontology, and/or described First gas density detection sensor is connected, and receives and/or calculate the gas density relay ontology, the first gas The data of density detection sensor monitoring；

Verification is compared to the first pressure value and second pressure value that acquire under same gas pressure in the intelligence control unit；With/ Or, verification is compared to the first temperature value and second temperature value that acquire under same gas temperature in the intelligence control unit；Alternatively, Verification is compared to the first density value and the second density value that acquire under same gas density in the intelligence control unit, obtains gas The current working status of the monitoring part of density monitor；Alternatively,

Received data are uploaded to backstage by the intelligence control unit, and the backstage is to the first pressure acquired under same gas pressure Verification is compared in value and second pressure value；And/or the backstage is to the first temperature value acquired under same gas temperature and Verification is compared in two temperature values；Alternatively, the backstage is to the first density value and the second density acquired under same gas density Verification is compared in value, obtains the current working status of the monitoring part of gas density relay；

Wherein, the first pressure value, one or two in second pressure value passed from the first gas Density Detection Sensor or from the gas density relay ontology；One or two in first temperature value, second temperature value is come From in the first gas density detection sensor or from the gas density relay ontology；First density value, One or two in second density value is from the first gas density detection sensor or from the gas density Relay ontology.

2. a kind of non-maintaining gas density detecting device characterized by comprising gas density relay ontology, the first gas Volume density detection sensor and intelligence control unit；Wherein,

The first gas density detection sensor is connected to, for acquiring in gas circuit with the gas density relay ontology Pressure value and temperature value, and/or gas density value；The intelligence control unit and the gas density relay ontology, and/or described First gas density detection sensor is connected, and receives and/or calculate the gas density relay ontology, the first gas The data of density detection sensor monitoring；

Verification is compared to the first pressure value and second pressure value that acquire under same gas pressure in the intelligence control unit；With/ Or, verification is compared to the first temperature value and second temperature value that acquire under same gas temperature in the intelligence control unit；Alternatively, Verification is compared to the first density value and the second density value that acquire under same gas density in the intelligence control unit, obtains gas The current working status of the monitoring part of density monitoring device；Alternatively,

Received data are uploaded to backstage by the intelligence control unit, and the backstage is to the first pressure acquired under same gas pressure Verification is compared in value and second pressure value；And/or the backstage is to the first temperature value acquired under same gas temperature and Verification is compared in two temperature values；Alternatively, the backstage is to the first density value and the second density acquired under same gas density Verification is compared in value, obtains the current working status of the monitoring part of gas density detecting device；

Wherein, the first pressure value, one or two in second pressure value passed from the first gas Density Detection Sensor or from the gas density relay ontology；One or two in first temperature value, second temperature value is come From in the first gas density detection sensor or from the gas density relay ontology；First density value, One or two in second density value is from the first gas density detection sensor or from the gas density Relay ontology.

3. gas density relay according to claim 1 or gas density detecting device according to claim 2, It is characterized by comprising at least two first gas density detection sensors, each first gas density detection sensor packets Include a pressure sensor, a temperature sensor；The pressure value and temperature of each first gas density detection sensor detection Value or gas density value are compared, and complete the mutual verification to each first gas density detection sensor.

4. gas density relay according to claim 1 or gas density detecting device according to claim 2, It is characterized by also including second gas density detection sensor, first gas density detection sensor and second gas density Detection sensor includes a pressure sensor, a temperature sensor；The pressure value of first gas density detection sensor With the pressure value and temperature value or gas density of temperature value or gas density value and the detection of second gas density detection sensor Value is compared, and completes the mutual verification to first gas density detection sensor and second gas density detection sensor.

5. gas density relay according to claim 4 or gas density detecting device, it is characterised in that: first gas The pressure value of the pressure sensor acquisition of any one in density detection sensor, second gas density detection sensor is first Pressure value P A, the temperature value of temperature sensor acquisition are the first temperature value TA；First gas density detection sensor, second gas The pressure value of arbitrarily another pressure sensor acquisition is second pressure value PB in density detection sensor, and temperature sensor is adopted The temperature value integrated is second temperature value TB；The intelligence control unit or/and backstage by first pressure value PA and second pressure value PB into Row compares, and obtains pressure difference | PA-PB |, the first temperature value TA is compared with second temperature value TB, obtains temperature difference | TA- TB|；If pressure difference | PA-PB | and/or temperature difference | TA-TB | respectively in its preset threshold, the gas density relay Or the current working status of the monitoring part of gas density detecting device is normal operating conditions, is abnormal operation otherwise； Alternatively,

The gas density value of any one acquisition is in first gas density detection sensor, second gas density detection sensor First density value PA20, the gas density value of another any acquisition are the second density value PB20；The intelligence control unit or/and after First density value PA20 is compared platform with the second density value PB20, obtains density contrast | PA20-PB20 |；If density contrast | PA20-PB20 | in its preset threshold, then the monitoring part of the gas density relay or gas density detecting device is worked as Preceding working condition is normal operating conditions, is abnormal operation otherwise.

6. gas density relay according to claim 1 or gas density detecting device according to claim 2, It is characterized by: the first gas density detection sensor includes at least one pressure sensor and at least one temperature sensing Device；Alternatively,

Using the gas density transmitter being made of pressure sensor and temperature sensor；Alternatively,

Using the density detection sensor of quartz tuning-fork technology.

7. gas density relay according to claim 6 or gas density detecting device, it is characterised in that: the intelligence control Ambient temperature value is compared with the temperature value of each temperature sensor acquisition, is completed to each temperature sensing by unit or/and backstage The verification of device.

8. gas density relay according to claim 7 or gas density detecting device, it is characterised in that: any one Temperature sensor acquisition temperature value be the first temperature value TA, ambient temperature value be second temperature value TB, the intelligence control unit or/ The first temperature value TA is compared with second temperature value TB with backstage, obtains temperature difference | TA-TB |；If temperature difference | TA-TB | In its preset threshold, then the current working status of the monitoring part of the gas density relay or gas density detecting device It is otherwise abnormal operation for normal operating conditions.

9. gas density relay according to claim 6 or gas density detecting device, it is characterised in that: described first Gas density detection sensor includes at least two pressure sensors, and the pressure value of each pressure sensor acquisition is compared, Complete the mutual verification to each pressure sensor.

10. gas density relay according to claim 9 or gas density detecting device, it is characterised in that: any one The pressure value of a pressure sensor acquisition is first pressure value PA, and the pressure value of any another pressure sensor acquisition is second First pressure value PA is compared with second pressure value PB for pressure value P B, the intelligence control unit or/and backstage, obtains pressure difference |PA-PB|；If pressure difference | PA-PB | in its preset threshold, the gas density relay or gas density detecting device Monitoring part current working status be normal operating conditions, otherwise, be abnormal operation.

11. gas density relay according to claim 6 or gas density detecting device, it is characterised in that: described One gas density detection sensor includes at least two temperature sensors, and the temperature value of each temperature sensor acquisition is compared It is right, complete the mutual verification to each temperature sensor.

12. gas density relay according to claim 11 or gas density detecting device, it is characterised in that: any one The temperature value of a temperature sensor acquisition is the first temperature value TA, and the temperature value of any another temperature sensor acquisition is second The first temperature value TA is compared with second temperature value TB for temperature value TB, the intelligence control unit or/and backstage, obtains temperature difference |TA-TB|；If temperature difference | TA-TB | in its preset threshold, the gas density relay or gas density detecting device Monitoring part current working status be normal operating conditions, otherwise, be abnormal operation.

13. gas density relay according to claim 6 or gas density detecting device, it is characterised in that: described One gas density detection sensor includes at least one pressure sensor and at least one temperature sensor；Each pressure sensor The temperature value random alignment combination of the pressure value of acquisition and the acquisition of each temperature sensor, and by each combination according to gas pressure Power-temperature characterisitic conversion becomes the pressure value of 20 DEG C of multiple correspondences, i.e. gas density value, each gas density value is compared, Complete the mutual verification to each pressure sensor, each temperature sensor；Alternatively,

The pressure value of each pressure sensor acquisition and the temperature value of each temperature sensor acquisition are gone through all over all permutation and combination, and Each combination is become to the pressure value of 20 DEG C of multiple correspondences, i.e. gas density value according to gas pressure-temperature Characteristic conversion, it is each Gas density value is compared, and completes the mutual verification to each pressure sensor, each temperature sensor；Alternatively,

Multiple gas density values, pressure value, temperature value that each pressure sensor, each temperature sensor obtain are compared It is right, complete the mutual verification to gas density relay ontology, each pressure sensor, each temperature sensor.

14. gas density relay according to claim 1 or gas density according to claim 2 monitoring dress It sets, it is characterised in that: the gas density relay or the gas density detecting device further include thermoregulation mechanism, described Thermoregulation mechanism is the adjustable regulating mechanism of temperature, and the thermoregulation mechanism is configured as regulating gas density monitor sheet The gradient of temperature of the temperature compensating element of body makes the gas density of the gas density relay ontology change；The intelligence The contact point signal value that the contact of control unit acquisition gas density relay ontology exports when acting, is the first density value PX20, preset contact point signal value be the second density value PB20, the intelligence control unit or/and backstage by the first density value PX20 with Second density value PB20 is compared, and obtains contact point signal difference | PX20-PB20 |；If contact point signal difference | PX20-PB20 | In its preset threshold, then the current working status of the monitoring part of the gas density relay or gas density detecting device It is otherwise abnormal operation for normal operating conditions.

15. gas density relay according to claim 1 or gas density according to claim 2 monitoring dress It sets, it is characterised in that: the gas density relay or the gas density detecting device further include pressure regulating mechanism, described Pressure regulating mechanism is the regulating mechanism of pressure adjustable, and the pressure regulating mechanism is configured as regulating gas density monitor sheet The pressure lifting of body makes the gas density of the gas density relay ontology change；The intelligence control unit acquires gas The contact point signal value that the contact of density monitor ontology exports when acting is the first density value PX20, preset contact letter Number value be the second density value PB20, the intelligence control unit or/and backstage by the first density value PX20 and the second density value PB20 into Row compares, and obtains contact point signal difference | PX20-PB20 |；If contact point signal difference | PX20-PB20 | in its preset threshold, The current working status of the monitoring part of the gas density relay or gas density detecting device is normal operating conditions, no It then, is abnormal operation.

16. gas density relay according to claim 1 or gas density according to claim 2 monitoring dress Set, it is characterised in that: the gas density relay ontology includes shell, and be set in the housing pedestal, pressure detector, Temperature compensating element compares signalling means, at least one signal generator, and the gas density relay ontology passes through pressure detecting Device and temperature compensating element monitor gas density, and pass through the signal generator output contact signal value；

The gas density relay ontology, which also has, compares pressure value output signal, the gas that the pressure detector is monitored The gas pressure of density monitor ontology is raised or lowered to the gas pressure value of a setting, and the comparison signalling means output compares Pressure value output signal, the comparison pressure value output signal are connected with the intelligence control unit；And/or

The gas density relay ontology, which also has, compares density value output signal, and the pressure detector and the temperature are mended The gas density for repaying the gas density relay ontology that element is monitored is raised or lowered to the gas density value of a setting, described It compares signalling means output and compares density value output signal, which is connected with the intelligence control unit.

17. gas density relay according to claim 16 or gas density detecting device, it is characterised in that: the ratio It include but is not limited to microswitch, electric contact, mercury switch, optoelectronic switch, reed switch, close switch, electronics to signalling means One of switch, variable resistance, voltage or current measurer；The signal generator includes but is not limited to microswitch, electricity One of contact, mercury switch, optoelectronic switch, reed switch, close switch, electronic switch；The pressure detector includes, One of but be not limited to Baden pipe, bellows, bellows+spring, pressure sensor.

18. gas density relay according to claim 16 or gas density detecting device, it is characterised in that: the ratio Comparison pressure value output signal to signalling means output is first pressure value PS, and the first gas density detection sensor is same The pressure value of one moment acquisition is second pressure value PJ, and first pressure value PS and second is pressed on the intelligence control unit or/and backstage Force value PJ is compared, and obtains pressure difference | PJ-PS |；If pressure difference | PJ-PS | in its preset threshold, the gas density The current working status of the monitoring part of relay or gas density detecting device is normal operating conditions, otherwise, for abnormal work Make state.

19. gas density relay according to claim 16 or gas density detecting device, it is characterised in that: the ratio Comparison density value output signal to signalling means output is the first density value PS20, and the first gas density detection sensor exists The gas density value of synchronization acquisition is the second density value PJ20, and the intelligence control unit or/and backstage are by the first density value PS20 is compared with the second density value PJ20, obtains density contrast | PJ20-PS20 |；Work as density contrast | PJ20-PS20 | it is pre- at its If in threshold value, then the current working status of the monitoring part of the gas density relay or gas density detecting device is normal Otherwise working condition is abnormal operation.

20. gas density relay according to claim 1 or gas density according to claim 2 monitoring dress It sets, it is characterised in that: the gas density relay or the gas density detecting device further include camera, the camera The pointer show value or digital display indicating value of gas density relay ontology are obtained by head portrait identification technology, are the first density value PZ20, the first gas density detection sensor are the second density value PJ20, institute in the gas density value that synchronization acquires State intelligence control unit or/and the first density value PZ20 be compared with the second density value PJ20 on backstage, obtain density contrast | PJ20- PZ20|；If density contrast | PJ20-PZ20 | in its preset threshold, the gas density relay or gas density monitoring dress The current working status for the monitoring part set is normal operating conditions, is abnormal operation otherwise.

21. gas density relay according to claim 1 or gas density according to claim 2 monitoring dress It sets, it is characterised in that: the intelligence control unit obtains the gas density value of the first gas density detection sensor acquisition；Or Person, the intelligence control unit obtain the pressure value and temperature value of the first gas density detection sensor acquisition, complete the gas The on-line monitoring of volume density relay or gas density detecting device to gas density.

22. gas density relay according to claim 1 or gas density according to claim 2 monitoring dress It sets, it is characterised in that: the intelligence control unit obtains gas density relay ontology when occurring contact movement or switching, described The gas density value of first gas density detection sensor acquisition, completes the on-line testing of the gas density relay；Alternatively,

It is close that the intelligence control unit obtains gas density relay ontology when occurring contact movement or switching, the first gas The pressure value and temperature value of detection sensor acquisition are spent, and becomes corresponding 20 DEG C of pressure according to gas pressure-temperature Characteristic conversion Force value, i.e. gas density value, complete the on-line testing of the gas density relay or gas density detecting device.

23. gas density relay according to claim 1 or gas density according to claim 2 monitoring dress It sets, it is characterised in that: the gas density relay ontology, the first gas density detection sensor are integrated； Alternatively, the telemetering type gas that the gas density relay ontology, the first gas density detection sensor are integrated Volume density relay.

24. gas density relay according to claim 1 or gas density according to claim 2 monitoring dress It sets, it is characterised in that: the first gas density detection sensor is integrated；Alternatively, the first gas density inspection Survey the gas density transmitter that sensor is integrated.

25. gas density relay according to claim 1 or gas density according to claim 2 monitoring dress It sets, it is characterised in that: at least two gas density relays or gas density detecting device pass through communication apparatus and remote Station detecting system connects after journey；Wherein, the gas density relay or gas density detecting device setting are in its correspondence gas chamber Electrical equipment on, the communication modes of the communication apparatus include wire communication mode and wireless communication mode.

26. gas density relay according to claim 1 or gas density according to claim 2 monitoring dress It sets, it is characterised in that: the control of the intelligence control unit is by field control, and/or passes through Background control.

27. gas density relay according to claim 1 or gas density according to claim 2 monitoring dress It sets, it is characterised in that: at least two gas density relays or gas density detecting device pass sequentially through hub, association View converter is connect with remote back-office detection system；Wherein, the gas density relay or gas density detecting device setting On the electrical equipment that it corresponds to gas chamber.

28. gas density relay according to claim 27 or gas density detecting device, it is characterised in that: the collection Line device uses RS485 hub；The protocol converter uses IEC61850 or IEC104 protocol converter.

29. a kind of mutual method of calibration of non-maintaining gas density relay characterized by comprising

By first gas density detection sensor, it is connected in gas circuit with gas density relay ontology；

Intelligence control unit is connected with the gas density relay ontology and/or the first gas density detection sensor；

Verification is compared to the first pressure value and second pressure value that acquire under same gas pressure in the intelligence control unit；With/ Or, verification is compared to the first temperature value and second temperature value that acquire under same gas temperature in the intelligence control unit；Alternatively, Verification is compared to the first density value and the second density value that acquire under same gas density in the intelligence control unit, obtains gas The current working status of the monitoring part of density monitor；Alternatively,

Received data are uploaded to backstage by the intelligence control unit, and the backstage is to the first pressure acquired under same gas pressure Verification is compared in value and second pressure value；And/or the backstage is to the first temperature value acquired under same gas temperature and Verification is compared in two temperature values；Alternatively, the backstage is to the first density value and the second density acquired under same gas density Verification is compared in value, obtains the current working status of the monitoring part of gas density relay；

Wherein, the first pressure value, one or two in second pressure value passed from the first gas Density Detection Sensor or from the gas density relay ontology；One or two in first temperature value, second temperature value is come From in the first gas density detection sensor or from the gas density relay ontology；First density value, One or two in second density value is from the first gas density detection sensor or from the gas density Relay ontology.

30. the mutual method of calibration of the non-maintaining gas density relay of one kind according to claim 29, feature exist In the first gas density detection sensor at least two, each gas density detection sensor includes a pressure Sensor, a temperature sensor；The gas density relay or the gas density detecting device further include second gas Density detection sensor, second gas density detection sensor include a pressure sensor, a temperature sensor；The phase Mutually method of calibration includes:

The pressure sensor acquisition of any one in first gas density detection sensor, second gas density detection sensor Pressure value is first pressure value PA, and the temperature value of temperature sensor acquisition is the first temperature value TA；First gas Density Detection passes The pressure value of arbitrarily another pressure sensor acquisition is second pressure value in sensor, second gas density detection sensor PB, the temperature value of temperature sensor acquisition are second temperature value TB；The intelligence control unit or backstage are by first pressure value PA and the Two pressure value P B are compared, and obtain pressure difference | PA-PB |, the first temperature value TA is compared with second temperature value TB, is obtained Obtain temperature difference | TA-TB |；If pressure difference | PA-PB | and/or temperature difference | TA-TB | respectively in its preset threshold, the gas The current working status of the monitoring part of volume density relay or gas density detecting device is otherwise normal operating conditions is Abnormal operation；Alternatively,

The gas density value of any one acquisition is in first gas density detection sensor, second gas density detection sensor First density value PA20, the gas density value of another any acquisition are the second density value PB20；The intelligence control unit or/and after First density value PA20 is compared platform with the second density value PB20, obtains density contrast | PA20-PB20 |；If density contrast | PA20-PB20 | in its preset threshold, then the monitoring part of the gas density relay or gas density detecting device is worked as Preceding working condition is normal operating conditions, is abnormal operation otherwise.

31. the mutual method of calibration of the non-maintaining gas density relay of one kind according to claim 29, feature exist In the first gas density detection sensor includes at least one pressure sensor and at least one temperature sensor；It is described Mutual method of calibration includes:

The temperature value of any one temperature sensor acquisition is the first temperature value TA, and ambient temperature value is second temperature value TB, institute State intelligence control unit or/and the first temperature value TA be compared with second temperature value TB on backstage, obtain temperature difference | TA-TB |；If Temperature difference | TA-TB | in its preset threshold, then the monitoring part of the gas density relay or gas density detecting device Current working status be normal operating conditions, Maintenance free, otherwise, be abnormal operation；Alternatively,

The pressure value of any one pressure sensor acquisition is first pressure value PA, the pressure of any another pressure sensor acquisition Force value is second pressure value PB, and first pressure value PA is compared with second pressure value PB for the intelligence control unit or/and backstage, Obtain pressure difference | PA-PB |；If pressure difference | PA-PB | in its preset threshold, the gas density relay or gas are close The current working status for spending the monitoring part of monitoring device is normal operating conditions, otherwise Maintenance free is abnormal work shape State；Alternatively,

The temperature value of any one temperature sensor acquisition is the first temperature value TA, the temperature of any another temperature sensor acquisition Angle value is second temperature value TB, and the first temperature value TA is compared with second temperature value TB for the intelligence control unit or/and backstage, Obtain temperature difference | TA-TB |；If temperature difference | TA-TB | in its preset threshold, the gas density relay or gas are close The current working status for spending the monitoring part of monitoring device is normal operating conditions, otherwise Maintenance free is abnormal work shape State.

32. the mutual method of calibration of the non-maintaining gas density relay of one kind according to claim 29, feature exist In the first gas density detection sensor includes at least one pressure sensor and at least one temperature sensor；It is described Mutual method of calibration includes:

The pressure value of each pressure sensor acquisition and the temperature value random alignment combination of each temperature sensor acquisition, and will be each A combination becomes the pressure value of 20 DEG C of multiple correspondences, i.e. gas density value, each gas according to gas pressure-temperature Characteristic conversion Density value is compared, and completes the mutual verification to each pressure sensor, each temperature sensor；Alternatively,

The pressure value of each pressure sensor acquisition and the temperature value of each temperature sensor acquisition are gone through all over all permutation and combination, and Each combination is become to the pressure value of 20 DEG C of multiple correspondences, i.e. gas density value according to gas pressure-temperature Characteristic conversion, it is each Gas density value is compared, and completes the mutual verification to each pressure sensor, each temperature sensor；Alternatively,

Multiple gas density values, pressure value, temperature value that each pressure sensor, each temperature sensor obtain are compared It is right, complete the mutual verification to gas density relay ontology, each pressure sensor, each temperature sensor.

33. the mutual method of calibration of the non-maintaining gas density relay of one kind according to claim 29, feature exist In the gas density relay or gas density detecting device further include thermoregulation mechanism, and the thermoregulation mechanism is The adjustable regulating mechanism of temperature, the thermoregulation mechanism are configured as the temperature-compensating member of regulating gas density monitor ontology The gradient of temperature of part makes the gas density of the gas density relay ontology change；The mutual method of calibration includes:

The thermoregulation mechanism is arranged in the shell of the gas density relay ontology or outside shell；

The thermoregulation mechanism is connected with the intelligence control unit；

The contact point signal value that the contact of the intelligence control unit acquisition gas density relay ontology exports when acting, is first Density value PX20, preset contact point signal value are the second density value PB20, and the intelligence control unit or/and backstage are by the first density value PX20 is compared with the second density value PB20, obtains contact point signal difference | PX20-PB20 |；If contact point signal difference | PX20- PB20 | in its preset threshold, then the current work of the monitoring part of the gas density relay or gas density detecting device Making state is normal operating conditions, otherwise Maintenance free is abnormal operation.

34. the mutual method of calibration of the non-maintaining gas density relay of one kind according to claim 29, feature exist In the gas density relay or gas density detecting device further include pressure regulating mechanism, and the pressure regulating mechanism is The regulating mechanism of pressure adjustable, the pressure regulating mechanism are configured as the pressure lifting of regulating gas density monitor ontology, The gas density of the gas density relay ontology is set to change；The mutual method of calibration includes:

The gas circuit of the pressure regulating mechanism is connected with the gas circuit of the gas density relay ontology；

The pressure regulating mechanism is connected with the intelligence control unit；

The contact point signal value that the contact of the intelligence control unit acquisition gas density relay ontology exports when acting, is first Density value PX20, preset contact point signal value are the second density value PB20, and the intelligence control unit or/and backstage are by the first density value PX20 is compared with the second density value PB20, obtains contact point signal difference | PX20-PB20 |；If contact point signal difference | PX20- PB20 | in its preset threshold, then the current work of the monitoring part of the gas density relay or gas density detecting device Making state is normal operating conditions, otherwise Maintenance free is abnormal operation.

35. the mutual method of calibration of the non-maintaining gas density relay of one kind according to claim 29, feature exist In the gas density relay ontology, which also has, compares pressure value output signal and/or comparison density value output signal；Its In, the pressure value output signal that compares is passed through by the pressure detector monitoring gas pressure of gas density relay ontology The comparison signalling means of gas density relay ontology exports, and the comparison density value output signal is by gas density relay ontology Pressure detector and temperature compensating element monitor gas density, and it is defeated by the comparison signalling means of gas density relay ontology Out；The mutual method of calibration includes:

The comparison pressure value output signal is connected with the intelligence control unit；And/or

The comparison density value output signal is connected with the intelligence control unit；

The comparison pressure value output signal for comparing signalling means output is first pressure value PS, the first gas Density Detection The pressure value that sensor is acquired in synchronization is second pressure value PJ, the intelligence control unit or/and backstage by first pressure value PS is compared with second pressure value PJ, obtains pressure difference | PJ-PS |；If pressure difference | PJ-PS | in its preset threshold, institute The current working status for stating the monitoring part of gas density relay or gas density detecting device is normal operating conditions, is not necessarily to Otherwise maintenance is abnormal operation；And/or

The comparison density value output signal for comparing signalling means output is the first density value PS20, the first gas density inspection Surveying the gas density value that sensor acquire in synchronization is the second density value PJ20, the intelligence control unit or/and from the background by the One density value PS20 is compared with the second density value PJ20, obtains density contrast | PJ20-PS20 |；Work as density contrast | PJ20-PS20 | in its preset threshold, then the work at present shape of the monitoring part of the gas density relay or gas density detecting device State is normal operating conditions, otherwise Maintenance free is abnormal operation.

36. the mutual method of calibration of the non-maintaining gas density relay of one kind according to claim 29, feature exist In the gas density relay or the gas density detecting device further include camera, and the mutual method of calibration includes:

The camera is connected with the intelligence control unit；

The camera obtains the pointer show value or digital display indicating value of gas density relay ontology by head portrait identification technology, For the first density value PZ20, the first gas density detection sensor is second close in the gas density value that synchronization acquires The first density value PZ20 is compared with the second density value PJ20 for angle value PJ20, the intelligence control unit or/and backstage, obtains close It is poor to spend | PJ20-PZ20 |；If density contrast | PJ20-PZ20 | in its preset threshold, the gas density relay or gas The current working status of the monitoring part of density monitoring device is normal operating conditions, otherwise Maintenance free is abnormal work shape State.

Technical field

The present invention relates to technical field of electric power, and in particular to a kind of to apply in high pressure, middle voltage electrical equipment, is non-maintaining Gas density relay.

Background technique

Currently, SF6 (sulfur hexafluoride) electrical equipment has been widely used in power department, industrial and mining enterprises, electric power row is promoted The fast development of industry.In recent years, with rapid economic development, China's power system capacity sharply expands, SF6 electrical equipment consumption It is more and more.Effect of the SF6 gas in high voltage electric equipment is arc extinguishing and insulation, and SF6 gas is close in high voltage electric equipment If degree reduces and the exceeded safe operation that will seriously affect SF6 high voltage electric equipment of micro-water content: 1) SF6 gas density is reduces To the forfeiture that will lead to insulation and arc extinction performance to a certain degree.2) in the presence of some metal objects, SF6 gas is in high temperature 200 With water hydrolysis can occur for DEG C temperatures above, generate active HF and SOF₂, etching insulative part and metalwork, and generate a large amount of Heat increases air chamber pressure.3) when temperature reduces, excessive moisture content is likely to form condensation water, makes insulating part surface insulation Intensity significantly reduces or even flashover, causes to seriously endanger.Therefore grid operation codes mandatory provision, before putting equipment in service and is transported In row must all periodic detection be carried out to the bulk density and water content of SF6 gas.

With unattended operation transformer station to networking, digitlization direction develop and to remote control, telemetering requirement constantly add By force, the on-line monitoring of the gas density to SF6 electrical equipment and micro-water content state has important practical significance.With China Smart grid is constantly greatly developed, important component and crucial section of the intelligent high-pressure electrical equipment as intelligent substation Point plays very important effect to the safety of smart grid.High voltage electric equipment is mostly SF6 air insulating device at present, If gas density reduces and (such as leak and cause) electric property that will seriously affect equipment, safe operation is caused serious hidden Suffer from.Gas density value at present in on-line monitoring SF6 high voltage electric equipment is very universal, thus gas density monitoring system System (gas density relay) application will flourish.And current gas density monitoring system (gas density relay) is basic On be: 1) using telemetering type SF6 gas density is relay realize density, pressure and temperature acquisition, upload, realize gas density On-line monitoring.2) acquisition that density, pressure and temperature are realized using gas density transmitter, uploads, and realizes that gas density is online Monitoring.SF6 gas density is relay is core and critical component, telemetering type SF6 gas density is relay or gas density pick-up Device is core and critical component, how to guarantee it to work normally very crucial.

Periodic inspection is carried out to the gas density relay on electrical equipment, is to prevent trouble before it happens, ensures electrical equipment peace The requisite measure of full reliability service；" electric power preventive trial regulation " and " prevent 25 Xiang Chong of power generation major accident Point requires " it requires and regularly gas density relay is verified；From the point of view of practical operation situation, to gas density after It is to ensure one of power equipment safety, necessary means of reliability service that electric appliance, which carries out periodic check,.In addition if to gas density On-Line Monitor Device or teletransmission density monitor are verified or are examined, and a large amount of man power and material is needed.

Therefore, it is highly desirable to innovation and creation to go out the non-maintaining gas density relay of one kind or gas density monitoring dress It sets, applies in the gas density monitoring system based on ubiquitous electric power Internet of Things, can be realized gas density relay Machinery Ministry Divide the mutual verification with electronic section, realization is non-maintaining, improves efficiency, and guarantees safety.

Summary of the invention

The present invention provides a kind of high pressure or middle voltage electrical equipment, non-maintaining gas density relay (gas density Monitoring device) and mutual method of calibration, for solve to be monitored the electrical equipment gas density of gas-insulated or arc extinguishing Meanwhile it also completing that the On-line self-diagnosis of gas density relay or mutually verification are improved efficiency, Maintenance free, reduce operation dimension Cost is protected, ensures electric power netting safe running.

To achieve the above object, the invention adopts the following technical scheme:

The application first aspect discloses a kind of non-maintaining gas density relay, comprising: gas density relay Ontology, first gas density detection sensor and intelligence control unit；Wherein,

The first gas density detection sensor is connected in gas circuit with the gas density relay ontology, is used for Acquire pressure value and temperature value, and/or gas density value；The intelligence control unit and the gas density relay ontology, and/or The first gas density detection sensor is connected, and receives and/or calculate the gas density relay ontology, described first The data of gas density detection sensor monitoring；

Verification is compared to the first pressure value and second pressure value that acquire under same gas pressure in the intelligence control unit； And/or verification is compared to the first temperature value and second temperature value that acquire under same gas temperature in the intelligence control unit；Or Verification is compared to the first density value and the second density value that acquire under same gas density in person, the intelligence control unit, obtains The current working status of the monitoring part of gas density relay；Alternatively,

Received data are uploaded to backstage by the intelligence control unit, and the backstage is to first acquired under same gas pressure Verification is compared in pressure value and second pressure value；And/or the backstage is to the first temperature value acquired under same gas temperature Verification is compared with second temperature value；Alternatively, the backstage is to the first density value and second acquired under same gas density Verification is compared in density value, obtains the current working status of the monitoring part of gas density relay；

Wherein, the first pressure value, one or two in second pressure value examined from the first gas density Survey sensor or from the gas density relay ontology；One or two in first temperature value, second temperature value It is a from the first gas density detection sensor or from the gas density relay ontology；First density Value, one or two in the second density value from the first gas density detection sensor or from the gas Density monitor ontology.

The application the second aspect discloses a kind of non-maintaining gas density detecting device, comprising: gas density relay Device ontology, first gas density detection sensor and intelligence control unit；Wherein,

The first gas density detection sensor is connected in gas circuit with the gas density relay ontology, is used for Acquire pressure value and temperature value, and/or gas density value；The intelligence control unit and the gas density relay ontology, and/or The first gas density detection sensor is connected, and receives and/or calculate the gas density relay ontology, described first The data of gas density detection sensor monitoring；

Verification is compared to the first pressure value and second pressure value that acquire under same gas pressure in the intelligence control unit； And/or verification is compared to the first temperature value and second temperature value that acquire under same gas temperature in the intelligence control unit；Or Verification is compared to the first density value and the second density value that acquire under same gas density in person, the intelligence control unit, obtains The current working status of the monitoring part of gas density detecting device；Alternatively,

Received data are uploaded to backstage by the intelligence control unit, and the backstage is to first acquired under same gas pressure Verification is compared in pressure value and second pressure value；And/or the backstage is to the first temperature value acquired under same gas temperature Verification is compared with second temperature value；Alternatively, the backstage is to the first density value and second acquired under same gas density Verification is compared in density value, obtains the current working status of the monitoring part of gas density detecting device；

Wherein, the first pressure value, one or two in second pressure value examined from the first gas density Survey sensor or from the gas density relay ontology；One or two in first temperature value, second temperature value It is a from the first gas density detection sensor or from the gas density relay ontology；First density Value, one or two in the second density value from the first gas density detection sensor or from the gas Density monitor ontology.

Preferably, the current working status packet of the monitoring part of the gas density relay or gas density detecting device It includes: normal operating conditions, abnormal operation.

It is highly preferred that the gas density relay or gas are close when the current working status is abnormal operation It spends monitoring device and issues abnormal prompt.

Preferably, the gas density relay or the gas density detecting device include that at least two first gas are close Detection sensor is spent, each first gas density detection sensor includes a pressure sensor, a temperature sensor；Respectively The pressure value and temperature value or gas density value of a first gas density detection sensor detection are compared, and complete to each The mutual verification of first gas density detection sensor.

Preferably, the gas density relay or the gas density detecting device further include second gas Density Detection Sensor, first gas density detection sensor and second gas density detection sensor include pressure sensor, one A temperature sensor；The pressure value and temperature value or gas density value and second gas of first gas density detection sensor are close The pressure value and temperature value or gas density value of degree detection sensor detection are compared, and complete to first gas Density Detection The mutual verification of sensor and second gas density detection sensor.

It is highly preferred that the pressure of any one in first gas density detection sensor, second gas density detection sensor The pressure value of force snesor acquisition is first pressure value PA, and the temperature value of temperature sensor acquisition is the first temperature value TA；First In gas density detection sensor, second gas density detection sensor it is any another pressure sensor acquisition pressure value For second pressure value PB, the temperature value of temperature sensor acquisition is second temperature value TB；The intelligence control unit or/and backstage are by the One pressure value P A is compared with second pressure value PB, obtains pressure difference | PA-PB |, by the first temperature value TA and second temperature value TB is compared, and obtains temperature difference | TA-TB |；If pressure difference | PA-PB | or/and temperature difference | TA-TB | threshold is preset at it respectively In value, then the current working status of the monitoring part of the gas density relay or gas density detecting device is to work normally Otherwise state is abnormal operation.

It is highly preferred that any one in first gas density detection sensor, second gas density detection sensor acquires Gas density value be the first density value PA20, gas density value of another any acquisition is the second density value PB20；It is described The first density value PA20 is compared with the second density value PB20 for intelligence control unit or/and backstage, obtains density contrast | PA20- PB20|；If density contrast | PA20-PB20 | in its preset threshold, the gas density relay or gas density monitoring dress The current working status for the monitoring part set is normal operating conditions, is abnormal operation otherwise.

It is highly preferred that the second gas density detection sensor at least two, each second gas Density Detection Sensor includes a pressure sensor, a temperature sensor；The pressure of each second gas density detection sensor detection Value and temperature value or gas density value are compared, and complete the mutual verification to each second gas density detection sensor.

It is highly preferred that Inspection method in addition to include but is not limited to corresponding difference respectively in its preset threshold, detection Value is in its setting range, two corresponding detected values are divided by one of in its preset threshold.

Preferably, the first gas density detection sensor includes at least one pressure sensor and at least one temperature Sensor；Alternatively,

Using the gas density transmitter being made of pressure sensor and temperature sensor；Alternatively,

Using the density detection sensor of quartz tuning-fork technology.

Specifically, the density detection sensor of the quartz tuning-fork technology utilizes the quartz (controlled) oscillator in vacuum The resonance frequency of constant resonance frequency and a homologous quartz (controlled) oscillator in tested gas is poor, close with tested gas It spends directly proportional, obtains the analog signal or digital signal of gas density value after treatment.

It is highly preferred that the pressure sensor is installed in the gas circuit of the gas density relay ontology.

It is highly preferred that the temperature sensor is installed in the gas circuit of the gas density relay ontology or outside gas circuit, Or in the gas density relay ontology or the gas density relay sheet is external.

It is highly preferred that the temperature compensating element that gas density relay ontology is arranged at least one temperature sensor is attached Closely or it is arranged on temperature compensating element, or is integrated in temperature compensating element.Preferably, at least one temperature sensor The one end of pressure detector close to temperature compensating element of gas density relay ontology is set.

It is highly preferred that the temperature value of the intelligence control unit or/and backstage by ambient temperature value, with the acquisition of each temperature sensor It is compared, completes the verification to each temperature sensor.

Further, the temperature value of any one temperature sensor acquisition is the first temperature value TA, ambient temperature value the The first temperature value TA is compared with second temperature value TB for two temperature value TB, the intelligence control unit or/and backstage, obtains temperature Difference | TA-TB |；If temperature difference | TA-TB | in its preset threshold, the gas density relay or gas density monitoring dress The current working status for the monitoring part set is normal operating conditions, is abnormal operation otherwise.

Further, the system that the ambient temperature value is made of gas density relay or gas density detecting device The temperature values of other test points obtained by comprehensive descision；Either obtained according to weather forecast；Either by same What the temperature value of other test points of a substation was obtained by comprehensive descision.

It is highly preferred that the first gas density detection sensor includes at least two pressure sensors, each pressure is passed The pressure value of sensor acquisition is compared, and completes the mutual verification to each pressure sensor.

Further, the pressure value of any one pressure sensor acquisition is first pressure value PA, another any pressure The pressure value of sensor acquisition is second pressure value PB, and first pressure value PA and second is pressed on the intelligence control unit or/and backstage Force value PB is compared, and obtains pressure difference | PA-PB |；If pressure difference | PA-PB | in its preset threshold, the gas density The current working status of the monitoring part of relay or gas density detecting device is normal operating conditions, otherwise, for abnormal work Make state.

It is highly preferred that the first gas density detection sensor includes at least two temperature sensors, each temperature is passed The temperature value of sensor acquisition is compared, and completes the mutual verification to each temperature sensor.

Further, the temperature value of any one temperature sensor acquisition is the first temperature value TA, another any temperature The temperature value of sensor acquisition is second temperature value TB, and the intelligence control unit or/and backstage are warm by the first temperature value TA and second Angle value TB is compared, and obtains temperature difference | TA-TB |；If temperature difference | TA-TB | in its preset threshold, the gas density The current working status of the monitoring part of relay or gas density detecting device is normal operating conditions, otherwise, for abnormal work Make state.

It is highly preferred that the first gas density detection sensor includes at least one pressure sensor and at least one temperature Spend sensor；The pressure value of each pressure sensor acquisition and the temperature value random alignment combination of each temperature sensor acquisition, And each combination is become to the pressure value of 20 DEG C of multiple correspondences, i.e. gas density value according to gas pressure-temperature Characteristic conversion, respectively A gas density value is compared, and completes the mutual verification to each pressure sensor, each temperature sensor；Alternatively,

The pressure value of each pressure sensor acquisition and the temperature value of each temperature sensor acquisition are gone through all over all arrangement groups It closes, and each combination is become to the pressure value of 20 DEG C of multiple correspondences, i.e. gas density according to gas pressure-temperature Characteristic conversion Value, each gas density value are compared, and complete the mutual verification to each pressure sensor, each temperature sensor；Alternatively,

Multiple gas density values, the pressure value, temperature value progress that each pressure sensor, each temperature sensor are obtained It compares, completes the mutual verification to gas density relay ontology, each pressure sensor, each temperature sensor.Above may be used To be completed by backstage or intelligence control unit.

It is highly preferred that the temperature sensor can be thermocouple, thermistor, semiconductor-type；It can be with contact and non- Contact；It can be thermal resistance and thermocouple；It can be digital and analog.

It is highly preferred that the pressure sensor can also be diffusion silicon pressure sensor, MEMS pressure sensor, chip type Pressure sensor, coil-induced pressure sensor (pressure sensor that such as Baden pipe is attached to induction coil), resistor pressure sensing Device (pressure sensor that such as Baden pipe is attached to slide wire resistance)；It can be analog quantity pressure sensor, be also possible to digital quantity pressure Force snesor.

Preferably, the gas density relay or the gas density detecting device further include thermoregulation mechanism, institute Stating thermoregulation mechanism is the adjustable regulating mechanism of temperature, and the thermoregulation mechanism is configured as regulating gas density monitor The gradient of temperature of the temperature compensating element of ontology makes the gas density of the gas density relay ontology change；It is described The contact point signal value that the contact of intelligence control unit acquisition gas density relay ontology exports when acting, is the first density value PX20, preset contact point signal value be the second density value PB20, the intelligence control unit or/and backstage by the first density value PX20 with Second density value PB20 is compared, and obtains contact point signal difference | PX20-PB20 |；If contact point signal difference | PX20-PB20 | In its preset threshold, then the current working status of the monitoring part of the gas density relay or gas density detecting device It is otherwise abnormal operation for normal operating conditions.

Preferably, the gas density relay or the gas density detecting device further include pressure regulating mechanism, institute The regulating mechanism that pressure regulating mechanism is pressure adjustable is stated, the pressure regulating mechanism is configured as regulating gas density monitor The pressure lifting of ontology makes the gas density of the gas density relay ontology change；The intelligence control unit acquires gas The contact point signal value that the contact of volume density relay ontology exports when acting is the first density value PX20, preset contact Signal value is the second density value PB20, and the intelligence control unit or/and backstage are by the first density value PX20 and the second density value PB20 It is compared, obtains contact point signal difference | PX20-PB20 |；If contact point signal difference | PX20-PB20 | in its preset threshold, Then the current working status of the monitoring part of the gas density relay or gas density detecting device is normal operating conditions, It otherwise, is abnormal operation.

Above-mentioned preset contact point signal value is that the standard (nominal parameter) of gas density relay ontology requires contact point signal Value.

It is highly preferred that the thermoregulation mechanism is heating element；Alternatively,

The thermoregulation mechanism includes heating element, heat preservation member, temperature controller, temperature detector, temperature adjuster Structure shell；Alternatively,

The thermoregulation mechanism includes heating element and temperature controller；Alternatively,

The thermoregulation mechanism includes heating element, heating power adjuster and temperature controller；Alternatively,

The thermoregulation mechanism includes heating element, cooling module, power governor and temperature controller；Alternatively,

The thermoregulation mechanism includes heating element, heating power adjuster and constant temperature controller；Alternatively,

The thermoregulation mechanism includes heating element, controller, temperature detector；Alternatively,

The thermoregulation mechanism is heating element, and the temperature of gas density relay ontology is arranged in the heating element Near compensating element,；Alternatively,

The thermoregulation mechanism is micro constant-temperature case；

Wherein, the quantity of the heating element is at least one, and the heating element includes but is not limited to silicon rubber heating Device (silicon rubber heating plate, silicon rubber heating tape, silicon rubber heater wire), resistance wire, ribbon heater, electrical bar, air-heater, infrared ray One of heating device, semiconductor；

The temperature controller connects the heating element, for controlling the heating temperature of heating element, the temperature control Device processed include but is not limited to PID controller, PID and fuzzy control be combined controller, frequency-variable controller, in PLC controller One kind.

It is highly preferred that the pressure regulating mechanism is a sealed gas chamber, the outside or inside of the sealed gas chamber, which is equipped with, to be added Thermal element, and/or cooling module are caused described by heating the heating element, and/or being freezed by the cooling module The temperature change of gas in sealed gas chamber, and then complete the pressure lifting of the gas density relay ontology；Alternatively,

The pressure regulating mechanism is cavity open at one end, and the other end of the cavity is connected to the gas density relay Device ontology；There is piston in the cavity, one end of the piston is connected with an adjusting rod, and the outer end of the adjusting rod, which connects, drives Dynamic component, the other end of the piston protrude into the opening, and in sealing contact with the inner wall of the cavity, the driving part It drives the adjusting rod and then the piston is driven to move in the cavity；Alternatively,

The pressure regulating mechanism is a sealed gas chamber, and the inside of the sealed gas chamber is equipped with piston, the piston and institute The inner wall for stating sealed gas chamber is in sealing contact, and the outside of the sealed gas chamber is equipped with driving part, and the driving part passes through electromagnetism It pushes and moves the piston and move in the cavity；Alternatively,

The pressure regulating mechanism is the air bag that one end connects driving part, driving of the air bag in the driving part Lower generating body product variation, the air bag are connected to the gas density relay ontology；Alternatively,

The pressure regulating mechanism is bellows, and one end of the bellows is connected to the gas density relay ontology, The other end of the bellows stretches under the driving of driving part；Alternatively,

The pressure regulating mechanism is a vent valve, and the vent valve is solenoid valve or motor-driven valve or other by electricity Or the vent valve that the mode of gas is realized；Alternatively,

The pressure regulating mechanism is a compressor；Alternatively,

The pressure regulating mechanism is a pump, and the pump including but not limited to makes press pump, booster pump, electric air pump, electromagnetism One of air pump；

Wherein, the driving part includes but is not limited to magnetic force, motor, reciprocating mechanism, Carnot cycle mechanism, gas One of dynamic element.

Preferably, the gas density relay ontology includes shell, and be set in the housing pedestal, pressure detecting Device, compares signalling means, at least one signal generator at temperature compensating element, and the gas density relay ontology passes through pressure Detector and temperature compensating element monitor gas density, and pass through the signal generator output contact signal value；

The gas density relay ontology, which also has, compares pressure value output signal, what the pressure detector was monitored The gas pressure of gas density relay ontology is raised or lowered to the gas pressure value of a setting, the comparison signalling means output Pressure value output signal is compared, which is connected with the intelligence control unit；And/or

The gas density relay ontology, which also has, compares density value output signal, the pressure detector and the temperature The gas density for the gas density relay ontology that degree compensating element, is monitored is raised or lowered to the gas density value of a setting, The comparison signalling means output compares density value output signal, which is connected with the intelligence control unit It connects.

It is highly preferred that the contact point signal includes alarm, and/or locking.

It is highly preferred that the comparison signalling means includes but is not limited to that microswitch, electric contact, mercury switch, photoelectricity are opened One of pass, reed switch, close switch, electronic switch, variable resistance, voltage or current measurer.

It is highly preferred that the signal generator includes but is not limited to that microswitch, electric contact, mercury switch, photoelectricity are opened One of pass, reed switch, close switch, electronic switch.

It is highly preferred that the pressure detector includes but is not limited to Baden pipe, bellows, bellows+spring, pressure biography One of sensor.

It is highly preferred that the comparison pressure value output signal for comparing signalling means output is first pressure value PS, described the The pressure value that one gas density detection sensor is acquired in synchronization is second pressure value PJ, the intelligence control unit or/and after First pressure value PS is compared platform with second pressure value PJ, obtains pressure difference | PJ-PS |；If pressure difference | PJ-PS | at it In preset threshold, then the current working status of the monitoring part of the gas density relay or gas density detecting device is positive Otherwise normal working condition is abnormal operation.

It is highly preferred that the comparison density value output signal for comparing signalling means output is the first density value PS20, it is described First gas density detection sensor is the second density value PJ20, the intelligence control unit in the gas density value that synchronization acquires Or/and the first density value PS20 is compared with the second density value PJ20 on backstage, obtains density contrast | PJ20-PS20 |；When close It is poor to spend | PJ20-PS20 | in its preset threshold, then and the monitoring portion of the gas density relay or gas density detecting device The current working status divided is normal operating conditions, is abnormal operation otherwise.

Preferably, the gas density relay or the gas density detecting device further include camera, the camera shooting Head obtains the pointer show value or digital display indicating value of gas density relay ontology by head portrait identification technology, is the first density value PZ20, the first gas density detection sensor are the second density value PJ20, institute in the gas density value that synchronization acquires State intelligence control unit or/and the first density value PZ20 be compared with the second density value PJ20 on backstage, obtain density contrast | PJ20- PZ20|；If density contrast | PJ20-PZ20 | in its preset threshold, the gas density relay or gas density monitoring dress The current working status for the monitoring part set is normal operating conditions, is abnormal operation otherwise.

Preferably, the intelligence control unit obtains the gas density value of the first gas density detection sensor acquisition；Or Person, the intelligence control unit obtain the pressure value and temperature value of the first gas density detection sensor acquisition, complete the gas Volume density relay or gas density detecting device complete to the electrical equipment monitored the on-line monitoring of gas density The on-line monitoring of gas density.

It is highly preferred that the intelligence control unit calculates the gas density value, the mean value using averaging method (mean value method) Method are as follows: in the time interval of setting, frequency acquisition is set, by N number of gas density of the different time points all collected Value carries out mean value calculation processing, obtains its gas density value；Alternatively,

Time interval, set temperature interval steps in setting, the N number of difference collected in whole temperature ranges Density value corresponding to temperature value carries out mean value calculation processing, obtains its gas density value；Alternatively,

Time interval, setting pressure intervals step-length in setting, it is N number of being collected in whole pressure ranges Density value corresponding to different pressures value carries out mean value calculation processing, obtains its gas density value；

Wherein, N is the positive integer more than or equal to 1.

Preferably, the intelligence control unit obtains gas density relay ontology when occurring contact movement or switching, institute The gas density value for stating the acquisition of first gas density detection sensor, completes the on-line testing of the gas density relay；Or Person,

The intelligence control unit obtains gas density relay ontology when occurring contact movement or switching, first gas The pressure value and temperature value of volume density detection sensor acquisition, and become 20 DEG C corresponding according to gas pressure-temperature Characteristic conversion Pressure value, i.e. gas density value completes the on-line testing of the gas density relay or gas density detecting device.

Preferably, the gas density relay ontology, the first gas density detection sensor are integrated； Alternatively, the telemetering type gas that the gas density relay ontology, the first gas density detection sensor are integrated Volume density relay.

Preferably, the gas density relay ontology includes but is not limited to the gas density relay of bimetallic strip compensation Device, the gas density relay of gas compensation, bimetal leaf and gas compensation mixed type gas density relay；Complete mechanical Gas density relay, numeric type gas density relay, machinery and digital mating type gas density relay；Band pointer The gas density relay of display, digital display gas density relay, without the gas density switch of display or instruction；SF6 gas Volume density relay, SF6 mixed gas density monitor, N2 gas density relay.

Preferably, the first gas density detection sensor is integrated；Alternatively, the first gas density inspection Survey the gas density transmitter that sensor is integrated.

Preferably, the intelligence control unit completes verification report, if any exception, issues alarm, and be uploaded to distal end, or send To specified receiver.

Preferably, the intelligence control unit is equipped with electric interfaces, and the electric interfaces complete test data storage, and/or survey Data export and/or test data printing are tried, and/or carries out data communication, and/or input analog quantity, digital quantity with host computer Information.

Preferably, the intelligence control unit further includes the communication mould for realizing remote transmitting test data, and/or self-correcting result Block, the communication modes of the communication module are wire communication mode or wireless communication mode.

Preferably, clock is additionally provided on the intelligence control unit, the clock is configurable for that the gas is periodically arranged The self-correcting time of density monitor ontology perhaps recording test time or record event time.

Preferably, the gas density relay or gas density detecting device further include multiple-pass joint, and the gas is close Relay ontology, the first gas density detection sensor and the intelligence control unit is spent to be arranged on the multiple-pass joint.

Preferably, the gas density relay or gas density detecting device further include display circle for human-computer interaction Face, the display interface are connected with the intelligence control unit, the current verification data of real-time display, and/or support data input.

Preferably, the gas density relay or gas density detecting device further include: respectively with the gas density Micro- water sensor that relay ontology is connected with the intelligence control unit, and/or respectively with the gas density relay ontology The decomposition product sensor being connected with the intelligence control unit.

Preferably, the gas density relay or gas density detecting device further include: contact resistance detection unit, institute Contact resistance detection unit is stated to be connected with the contact point signal of the gas density relay ontology or directly close with the gas The degree intrinsic signal generator of relay is connected；When the contact of gas density relay ontology acts, and/or When being connected to the instruction of detection contact contact resistance, contact resistance detection unit is able to detect that connecing for gas density relay ontology Point contact resistance value.

Preferably, at least two gas density relays or gas density detecting device pass through communication apparatus and remote Station detecting system connects after journey；Wherein, the gas density relay or gas density detecting device setting are in its correspondence gas chamber Electrical equipment on.

It is highly preferred that the communication modes of the communication apparatus include wire communication mode and wireless communication mode.

Further, the wire communication mode include RS232 bus, RS485 bus, CAN-BUS bus, 4-20mA, One or more of Hart, IIC, SPI, Wire, coaxial cable, PLC power carrier, cable.

Further, the wireless communication mode includes 5G/NB-IOT communication module (such as 5G, NB- built in sensor IOT), 2G/3G/4G/5G, WIFI, bluetooth, Lora, Lorawan, Zigbee, infrared, ultrasonic wave, sound wave, satellite, light wave, amount One or more of son communication, sonar.

Preferably, the control of the intelligence control unit is by field control, and/or passes through Background control.

It is highly preferred that setting or remote control command of the intelligence control unit according to remote back-office detection system, completion pair The on-line testing of gas density relay or gas density detecting device；Alternatively, according to the school of the gas density relay of setting It tests the time, completes the on-line testing to gas density relay or gas density detecting device.

It is highly preferred that at least two gas density relays or gas density detecting device pass sequentially through line concentration Device, protocol converter and remote back-office detection system connect；Wherein, the gas density relay or gas density detecting device It is arranged on its electrical equipment for corresponding to gas chamber.

Further, the hub uses RS485 hub.

Further, the protocol converter uses IEC61850 or IEC104 protocol converter.

Further, the protocol converter also services printer with network respectively and network data router is connect.

A kind of mutual method of calibration of non-maintaining gas density relay is disclosed in terms of the application third, comprising:

By first gas density detection sensor, it is connected in gas circuit with gas density relay ontology；

Intelligence control unit is connected with the gas density relay ontology and/or the first gas density detection sensor It connects；

Verification is compared to the first pressure value and second pressure value that acquire under same gas pressure in the intelligence control unit； And/or verification is compared to the first temperature value and second temperature value that acquire under same gas temperature in the intelligence control unit；Or Verification is compared to the first density value and the second density value that acquire under same gas density in person, the intelligence control unit, obtains The current working status of the monitoring part of gas density relay；Alternatively,

Received data are uploaded to backstage by the intelligence control unit, and the backstage is to first acquired under same gas pressure Verification is compared in pressure value and second pressure value；And/or the backstage is to the first temperature value acquired under same gas temperature Verification is compared with second temperature value；Alternatively, the backstage is to the first density value and second acquired under same gas density Verification is compared in density value, obtains the current working status of the monitoring part of gas density relay；

Wherein, the first pressure value, one or two in second pressure value examined from the first gas density Survey sensor or from the gas density relay ontology；One or two in first temperature value, second temperature value It is a from the first gas density detection sensor or from the gas density relay ontology；First density Value, one or two in the second density value from the first gas density detection sensor or from the gas Density monitor ontology.

Preferably, the first gas density detection sensor at least two, each gas density detection sensor Including a pressure sensor, a temperature sensor；The gas density relay or the gas density detecting device are also Including second gas density detection sensor, second gas density detection sensor includes a pressure sensor, a temperature Sensor；The mutual method of calibration includes:

The pressure sensor of any one in first gas density detection sensor, second gas density detection sensor is adopted For the pressure value integrated as first pressure value PA, the temperature value of temperature sensor acquisition is the first temperature value TA；The inspection of first gas density The pressure value of arbitrarily another pressure sensor acquisition is second pressure in survey sensor, second gas density detection sensor Value PB, the temperature value of temperature sensor acquisition are second temperature value TB；The intelligence control unit or backstage by first pressure value PA with Second pressure value PB is compared, and obtains pressure difference | PA-PB |, the first temperature value TA is compared with second temperature value TB, Obtain temperature difference | TA-TB |；If pressure difference | PA-PB | and/or temperature difference | TA-TB | it is described respectively in its preset threshold The current working status of the monitoring part of gas density relay or gas density detecting device is normal operating conditions, otherwise, For abnormal operation；Alternatively,

The gas density that any one in first gas density detection sensor, second gas density detection sensor acquires Value is the first density value PA20, and the gas density value of another any acquisition is the second density value PB20；The intelligence control unit or/ The first density value PA20 is compared with the second density value PB20 with backstage, obtains density contrast | PA20-PB20 |；If density contrast | PA20-PB20 | in its preset threshold, then the monitoring part of the gas density relay or gas density detecting device Current working status is normal operating conditions, is abnormal operation otherwise.

Preferably, the first gas density detection sensor includes at least one pressure sensor and at least one temperature Sensor；The mutual method of calibration includes:

The temperature value of any one temperature sensor acquisition is the first temperature value TA, and ambient temperature value is second temperature value The first temperature value TA is compared with second temperature value TB for TB, the intelligence control unit or/and backstage, obtains temperature difference | TA-TB |；If temperature difference | TA-TB | in its preset threshold, the monitoring of the gas density relay or gas density detecting device Partial current working status is normal operating conditions, otherwise Maintenance free is abnormal operation；Alternatively,

The pressure value of any one pressure sensor acquisition is first pressure value PA, any another pressure sensor acquisition Pressure value be second pressure value PB, the intelligence control unit or/and backstage carry out first pressure value PA and second pressure value PB Compare, obtain pressure difference | PA-PB |；If pressure difference | PA-PB | in its preset threshold, the gas density relay or gas The current working status of the monitoring part of volume density monitoring device is normal operating conditions, otherwise Maintenance free is abnormal work State；Alternatively,

The temperature value of any one temperature sensor acquisition is the first temperature value TA, any another temperature sensor acquisition Temperature value be second temperature value TB, the intelligence control unit or/and backstage carry out the first temperature value TA and second temperature value TB Compare, obtain temperature difference | TA-TB |；If temperature difference | TA-TB | in its preset threshold, the gas density relay or gas The current working status of the monitoring part of volume density monitoring device is normal operating conditions, otherwise Maintenance free is abnormal work State.

Preferably, the first gas density detection sensor includes at least one pressure sensor and at least one temperature Sensor；The mutual method of calibration includes:

The pressure value of each pressure sensor acquisition and the temperature value random alignment combination of each temperature sensor acquisition, and Each combination is become to the pressure value of 20 DEG C of multiple correspondences, i.e. gas density value according to gas pressure-temperature Characteristic conversion, it is each Gas density value is compared, and completes the mutual verification to each pressure sensor, each temperature sensor；Alternatively,

The pressure value of each pressure sensor acquisition and the temperature value of each temperature sensor acquisition are gone through all over all arrangement groups It closes, and each combination is become to the pressure value of 20 DEG C of multiple correspondences, i.e. gas density according to gas pressure-temperature Characteristic conversion Value, each gas density value are compared, and complete the mutual verification to each pressure sensor, each temperature sensor；Alternatively,

Multiple gas density values, the pressure value, temperature value progress that each pressure sensor, each temperature sensor are obtained It compares, completes the mutual verification to gas density relay ontology, each pressure sensor, each temperature sensor.

Preferably, the gas density relay or gas density detecting device further include thermoregulation mechanism, the temperature Degree regulating mechanism is the adjustable regulating mechanism of temperature, and the thermoregulation mechanism is configured as regulating gas density monitor ontology Temperature compensating element gradient of temperature, so that the gas density of the gas density relay ontology is changed；It is described mutual Method of calibration includes:

The thermoregulation mechanism is arranged in the shell of the gas density relay ontology or outside shell；

The thermoregulation mechanism is connected with the intelligence control unit；

The contact point signal value that the contact of intelligence control unit acquisition gas density relay ontology exports when acting is First density value PX20, preset contact point signal value are the second density value PB20, and the intelligence control unit or/and backstage are close by first Angle value PX20 is compared with the second density value PB20, obtains contact point signal difference | PX20-PB20 |；If contact point signal difference | PX20-PB20 | in its preset threshold, then the monitoring part of the gas density relay or gas density detecting device is worked as Preceding working condition is normal operating conditions, otherwise Maintenance free is abnormal operation.

Preferably, the gas density relay or gas density detecting device further include pressure regulating mechanism, the pressure Power regulating mechanism is the regulating mechanism of pressure adjustable, and the pressure regulating mechanism is configured as regulating gas density monitor ontology Pressure lifting, so that the gas density of the gas density relay ontology is changed；The mutual method of calibration includes:

The gas circuit of the pressure regulating mechanism is connected with the gas circuit of the gas density relay ontology；

The pressure regulating mechanism is connected with the intelligence control unit；

The contact point signal value that the contact of intelligence control unit acquisition gas density relay ontology exports when acting is First density value PX20, preset contact point signal value are the second density value PB20, and the intelligence control unit or/and backstage are close by first Angle value PX20 is compared with the second density value PB20, obtains contact point signal difference | PX20-PB20 |；If contact point signal difference | PX20-PB20 | in its preset threshold, then the monitoring part of the gas density relay or gas density detecting device is worked as Preceding working condition is normal operating conditions, otherwise Maintenance free is abnormal operation.

Preferably, the gas density relay ontology, which also has, compares pressure value output signal and/or comparison density value Output signal；Wherein, the pressure value output signal that compares is by the pressure detector monitoring gas of gas density relay ontology Pressure, and exported by the comparison signalling means of gas density relay ontology, the comparison density value output signal is close by gas The pressure detector and temperature compensating element for spending relay ontology monitor gas density, and pass through gas density relay ontology Compare signalling means output；The mutual method of calibration includes:

The comparison pressure value output signal is connected with the intelligence control unit；And/or

The comparison density value output signal is connected with the intelligence control unit；

The comparison pressure value output signal for comparing signalling means output is first pressure value PS, the first gas density Detection sensor is second pressure value PJ in the pressure value that synchronization acquires, and the intelligence control unit or/and backstage are pressed first Force value PS is compared with second pressure value PJ, obtains pressure difference | PJ-PS |；If pressure difference | PJ-PS | in its preset threshold, Then the current working status of the monitoring part of the gas density relay or gas density detecting device is normal operating conditions, Otherwise Maintenance free is abnormal operation；And/or

The comparison density value output signal for comparing signalling means output is the first density value PS20, and the first gas is close Degree detection sensor is the second density value PJ20, the intelligence control unit or/and backstage in the gas density value that synchronization acquires First density value PS20 is compared with the second density value PJ20, obtains density contrast | PJ20-PS20 |；Work as density contrast | PJ20- PS20 | in its preset threshold, then the current work of the monitoring part of the gas density relay or gas density detecting device Making state is normal operating conditions, otherwise Maintenance free is abnormal operation.

Preferably, the gas density relay or the gas density detecting device further include camera, described mutual Method of calibration includes:

The camera is connected with the intelligence control unit；

By head portrait identification technology, the pointer show value or digital display for obtaining gas density relay ontology show the camera Value, is the first density value PZ20, and the gas density value that the first gas density detection sensor acquire in synchronization is the The first density value PZ20 is compared with the second density value PJ20 for two density value PJ20, the intelligence control unit or/and backstage, obtains Obtain density contrast | PJ20-PZ20 |；If density contrast | PJ20-PZ20 | in its preset threshold, the gas density relay or The current working status of the monitoring part of gas density detecting device is normal operating conditions, Maintenance free, otherwise, for abnormal work Make state.

It is above-mentioned that verification is compared to the first pressure value acquired under same gas pressure and second pressure value；And/or it is right Verification is compared in the first temperature value and second temperature value acquired under same gas temperature；Alternatively, under same gas density The first density value and the second density value of acquisition, which are compared verification and can be intelligence control unit, is compared calculating, can also will be upper It states data and is transmitted to backstage, by calculating is compared from the background.

Compared with prior art, technical solution of the present invention has the advantages that

1) a kind of non-maintaining gas density relay is provided, for solving the electrical equipment gas to gas-insulated or arc extinguishing While volume density is monitored, the On-line self-diagnosis or mutually verification to gas density relay are also completed, efficiency, nothing are improved It needs to safeguard, reduces operation expense, ensured electric power netting safe running.

2) a kind of mutual method of calibration of non-maintaining gas density relay is provided, can support above-mentioned non-maintaining gas The normal operation of volume density relay.

Detailed description of the invention

Attached drawing is constituted part of this application to be used to provide further understanding of the present application, the schematic implementation of the application Example and its explanation are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:

Fig. 1 is the structural schematic diagram of the high pressure electrical equipment of embodiment one, non-maintaining gas density relay；

Fig. 2 is the high pressure electrical equipment of embodiment two, non-maintaining gas density relay or gas density prison Survey the structural schematic diagram of device；

Fig. 3 is the high pressure electrical equipment of embodiment three, non-maintaining gas density relay or gas density prison Survey the structural schematic diagram of device；

Fig. 4 is the high pressure electrical equipment of example IV, non-maintaining gas density relay or gas density prison Survey the structural schematic diagram of device；

Fig. 5~Fig. 7 is the structural schematic diagram with non-maintaining gas density monitoring system of embodiment five.

Specific embodiment

The present invention provides a kind of non-maintaining gas density relay, to make the purpose of the present invention, technical solution and effect It is clearer, clear, referring to the drawings and give an actual example that the present invention is described in more detail.It should be appreciated that described herein Specific examples are only used to explain the present invention, is not intended to limit the present invention.