阅读说明：本技术 一种主变温度计的调试装置及调试方法 (Debugging device and debugging method for main transformer thermometer ) 是由 王义军 郭其锋 余伟 杨涛 张健 林琳 赵艳兵 许炜 曹来军 陈有为 于 2020-06-17 设计创作，主要内容包括：本发明公开了一种主变温度计的调试装置,其包括：外壳、控制室以及油箱室；所述控制室由电器组装板、电机安装板和控制室侧面板相互可拆卸扣合构成的腔室；所述电机安装板上安装有油泵,油泵与所述油箱室之间通过油管路连接；所述电器组装板上安装电源以及控制器；所述油箱室由箱体状的油箱体、以及与所述油箱体可拆卸扣合的油箱上面板、油箱侧面板构成的腔室,在所述油箱体侧壁设有第一加热棒插入孔和第二加热棒插入孔、以及一个标准温度计插入孔；所述油箱上面板上设有待测温度计插入孔和排气孔。本装置能够在现场对温度计进行准确校验,提高温度计校验效率,而且能够降低变电设备运维成本。(The invention discloses a debugging device of a main transformer thermometer, which comprises: a housing, a control chamber and an oil tank chamber; the control room is a cavity formed by detachably buckling an electric appliance assembling plate, a motor mounting plate and a control room side panel; the motor mounting plate is provided with an oil pump, and the oil pump is connected with the oil tank chamber through an oil pipeline; a power supply and a controller are arranged on the electric appliance assembling plate; the oil tank chamber is a cavity formed by an oil tank body in a box shape, an oil tank upper panel detachably buckled with the oil tank body and an oil tank side panel, and a first heating rod insertion hole, a second heating rod insertion hole and a standard thermometer insertion hole are formed in the side wall of the oil tank body; and the upper panel of the oil tank is provided with a thermometer inserting hole to be tested and an exhaust hole. This device can carry out accurate check-up to the thermometer at the scene, improves thermometer check-up efficiency, can reduce substation equipment fortune dimension cost moreover.)

1. The utility model provides a debugging device of main transformer thermometer which characterized in that includes:

a housing (1), a control chamber and an oil tank chamber;

the control room is a cavity formed by detachably buckling an electric appliance assembling plate (2), a motor mounting plate (3) and a control room side panel (4);

the motor mounting plate (3) is provided with an oil pump, and the oil pump is connected with the oil tank chamber through an oil pipeline;

a power supply and a controller are arranged on the electric appliance assembling plate;

the oil tank chamber is a cavity formed by an oil tank body (7) in a box shape, an oil tank upper panel (5) detachably buckled with the oil tank body and an oil tank side panel (6), and a first heating rod insertion hole (74), a second heating rod insertion hole (73) and a standard thermometer insertion hole (75) are formed in the side wall of the oil tank body; and a thermometer insertion hole (51) and an exhaust hole (52) to be tested are formed in the upper panel (5) of the oil tank.

2. Commissioning device of a main transformer thermometer according to claim 1 characterised in that the control chamber side panel (4) is provided with honeycomb shaped ventilation holes (41).

3. The debugging device of claim 1, wherein the controller is connected with an oil pump and a heating device for heating the oil tank, a transformer thermometer probe is arranged in the mailbox, the power supply supplies power to the controller, the controller controls the heating device to heat the oil in the oil tank, and the thermometer to be tested is inserted into the oil tank to raise the oil temperature to a set temperature.

4. The debugging device of a main transformer thermometer of claim 3, wherein the controller comprises a temperature control module and an oil speed control module, the oil speed control module controls the rotation speed of the oil pump and the flow rate of the transformer oil so as to enable the transformer oil to be heated uniformly; the temperature control module enables the oil temperature of the transformer to be constant by controlling the heating rod.

5. A debugging method of a main transformer thermometer, comprising the debugging device of any one of claims 1 to 4, characterized in that the debugging method comprises the following steps:

s1, inserting the oil input pipe into the mailbox from a thermometer inserting hole (51) to be tested on the upper panel of the mailbox, injecting transformer oil into the oil tank (7), and taking out the oil input pipe after the mailbox is full;

s2, inserting the temperature probe of the thermometer to be verified into the thermometer insertion hole (51) of the upper panel of the oil tank, wherein the temperature probe is required to be completely immersed into the transformer oil;

s3, completing the line connection of the thermometer to be verified, which specifically comprises the following steps: 1) connecting a node to be checked on the thermometer to be checked with an indicator lamp in the operation panel by a lead; or, 2) connecting the node to be checked with an ammeter or a voltmeter on the operation panel by using a lead;

s4, setting a preset temperature of the temperature control device, switching on an external power supply, electrifying the controller, setting the temperature of the temperature control device as a setting temperature of a node to be checked, starting heating the transformer oil by the heating rod, and simultaneously starting the oil pump to uniformly heat the transformer oil to the preset temperature;

s5, when the heating rod heats the transformer oil to the setting temperature, the temperature control device controls the heating rod to stop heating;

s6, judging according to different connection modes in the step S3: 1) if the to-be-verified node is connected with an indicator lamp in the operation panel through a wire, whether the indicator lamp is lightened or not is checked, if the to-be-verified node is not lightened, the set temperature of the to-be-verified thermometer is not in accordance with the actual temperature, and the to-be-verified thermometer needs to be re-set until the indicator lamp is lightened;

2) if the node to be verified is connected with an ammeter or a voltmeter on the operation panel by a lead; and checking the specification of the thermometer, determining a current value or a voltage value corresponding to the set temperature, comparing the current value or the voltage value with a current value or a voltage value of an ammeter or a voltmeter on the operation panel, and if the error exceeds a specified value, indicating that the current output module or the voltage output module of the thermometer fails and needs to be replaced.

The technical field is as follows:

the invention relates to a debugging device and a debugging method of a main transformer thermometer, and belongs to the technical field of debugging of main transformer thermometers.

Background art:

a device for remotely monitoring the temperature of the top oil should be arranged on the transformer of 20000kVA or above in the unattended substation; the top oil temperature of the oil immersed transformer is generally not more than 85 ℃. If the transformer runs at a high temperature for a long time, the service life of the internal insulating paper board can be shortened, the insulating paper board becomes brittle and is easy to break, the insulating effect is lost, and accidents such as breakdown are caused. Therefore, the real-time and accurate monitoring of the oil temperature has great influence on the safe operation of the transformer. In the debugging working process of a main transformer thermometer of a transformer substation at present, the following problems are found:

1. in the debugging work at the present stage, methods of burning, scalding a thermometer temperature wrapping head by hot water and direct short-circuit wiring are often adopted to verify whether the thermometer setting and the secondary circuit wiring of the transformer are correct, the temperature of a heating medium cannot be accurately and effectively controlled in the operation process, and hidden dangers such as burning, scalding, misoperation and incomplete field detection items exist simultaneously, so the debugging process is not accurate enough, and the debugging effect and the acceptance quality cannot be guaranteed.

2. In the debugging of the temperature control node of the thermometer at the present stage, whether the temperature control node acts accurately or not can be determined only by recording the temperature value of the thermometer at the moment after a field worker receives a temperature alarm signal through the self sense organ, the process has errors of artificial reading, and meanwhile, the time delay exists, and the accuracy of a debugging result is difficult to guarantee.

Based on the situation, a new scheme is urgently needed, and the problem of field debugging of the novel transformer substation body thermometer is solved. The accuracy degree of thermometer debugging work can be effectively promoted, the potential safety hazard existing in the thermometer debugging work is solved, and then the reliable and accurate operation of thermometer ability is guaranteed.

The invention content is as follows:

in order to overcome the defects of the prior art, the invention aims to provide a debugging device and a debugging method of a main transformer thermometer, which can accurately verify the thermometer on site, improve the verification efficiency of the thermometer and reduce the operation and maintenance cost of power transformation equipment.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a debugging device of main transformer thermometer, it includes:

a housing, a control chamber and an oil tank chamber;

the control room is a cavity formed by detachably buckling an electric appliance assembling plate, a motor mounting plate and a control room side panel;

the motor mounting plate is provided with an oil pump, and the oil pump is connected with the oil tank chamber through an oil pipeline;

a power supply and a controller are arranged on the electric appliance assembling plate;

the oil tank chamber is a cavity formed by an oil tank body in a box shape, an oil tank upper panel detachably buckled with the oil tank body and an oil tank side panel, and a first heating rod insertion hole, a second heating rod insertion hole and a standard thermometer insertion hole are formed in the side wall of the oil tank body; and the upper panel of the oil tank is provided with a thermometer inserting hole to be tested and an exhaust hole.

Preferably, the control chamber side panel is provided with a honeycomb-shaped vent hole.

Preferably, the controller is connected with the oil pump and a heating device for heating the oil tank, a transformer thermometer probe is arranged in the mailbox, the power supply provides power for the controller, the controller controls the heating device to heat the oil in the oil tank, and the temperature of the oil is raised to a set temperature after the thermometer to be measured is inserted into the oil tank.

Preferably, the controller comprises a temperature control module and an oil speed control module, wherein the oil speed control module controls the rotating speed of the oil pump and controls the flow rate of the transformer oil so as to uniformly heat the transformer oil; the temperature control module enables the oil temperature of the transformer to be constant by controlling the heating rod.

A debugging method of a main transformer thermometer comprises the following steps:

s1, inserting the oil input pipe into the mailbox from a thermometer insertion hole to be tested on an upper panel of the mailbox, injecting transformer oil into the oil tank, and taking out the oil input pipe after the mailbox is full;

s2, inserting the temperature probe of the thermometer to be verified into the thermometer insertion hole to be tested on the upper panel of the oil tank, and ensuring that the temperature probe is completely immersed into the transformer oil;

s3, completing the line connection of the thermometer to be verified, which specifically comprises the following steps: 1) connecting a node to be checked on the thermometer to be checked with an indicator lamp in the operation panel by a lead; or, 2) connecting the node to be checked with an ammeter or a voltmeter on the operation panel by using a lead;

s4, setting a preset temperature of the temperature control device, switching on an external power supply, electrifying the controller, setting the temperature of the temperature control device as a setting temperature of a node to be checked, starting heating the transformer oil by the heating rod, and simultaneously starting the oil pump to uniformly heat the transformer oil to the preset temperature;

s5, when the heating rod heats the transformer oil to the setting temperature, the temperature control device controls the heating rod to stop heating;

s6, judging according to different connection modes in the step S3: 1) if the to-be-verified node is connected with an indicator lamp in the operation panel through a wire, whether the indicator lamp is lightened or not is checked, if the to-be-verified node is not lightened, the set temperature of the to-be-verified thermometer is not in accordance with the actual temperature, and the to-be-verified thermometer needs to be re-set until the indicator lamp is lightened;

2) if the node to be verified is connected with an ammeter or a voltmeter on the operation panel by a lead; and checking the specification of the thermometer, determining a current value or a voltage value corresponding to the set temperature, comparing the current value or the voltage value with a current value or a voltage value of an ammeter or a voltmeter on the operation panel, and if the error exceeds a specified value, indicating that the current output module or the voltage output module of the thermometer fails and needs to be replaced.

Compared with the prior art, the invention has the beneficial effects that:

through providing the higher transformer thermometer calibration equipment of integrated level among this technical scheme, with oil storage device, oil pump, temperature control device to and the integrated to the device body of calibration measuring device inside, compare in prior art in current calibration equipment, simple structure, portable easily carries, is applicable to very much and uses widely.

Description of the drawings:

FIG. 1 is an exploded schematic view of the overall structure of the present application;

FIG. 2 is a schematic view of the housing structure of the device of the present application;

FIG. 3 is a schematic view of an appliance mounting plate according to the present application;

FIG. 4 is a schematic structural view of a control room motor mounting base plate of the present application;

FIG. 5 is a schematic view of a side panel of a control chamber of the device of the present application;

FIG. 6 is a schematic view of the upper panel structure of the fuel tank of the present application;

FIG. 7 is a schematic view of the oil tank side panel structure of the present application;

fig. 8 is a schematic view of the structure of the fuel tank in the present application.

Reference numbers in the figures: the device comprises a shell 1, an electric appliance assembling plate 2, a motor mounting plate 3, a control room side plate 4, an oil tank upper panel 5, an oil tank side panel 6, an oil tank body 7, an air-open power supply port 21, a control processor port 22, a vent hole 41, a thermometer inserting hole to be tested 51, an exhaust hole 52, an upper oil outlet 71, a lower oil inlet 72, a second heating rod inserting hole 73, a first heating rod inserting hole 74 and a standard thermometer inserting hole 75.

The present invention will be further described with reference to the following detailed description and accompanying drawings.

The specific implementation mode is as follows:

in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to the attached drawings, the debugging device of the main transformer thermometer of the embodiment comprises:

a housing 1, a control chamber and an oil tank chamber;

the control room is a cavity formed by detachably buckling an electric appliance assembling plate 2, a motor mounting plate 3 and a control room side panel 4; the electric appliance assembling plate 2 is provided with an air-open power supply port and a control processor port 22.

The motor mounting plate 3 is provided with an oil pump, and the oil pump is connected with the oil tank chamber through an oil pipeline;

a power supply and a controller are arranged on the electric appliance assembling plate;

the oil tank chamber is a cavity formed by an oil tank body 7 in a box shape, an oil tank upper panel 5 detachably buckled with the oil tank body and an oil tank side panel 6, and a first heating rod insertion hole 74, a second heating rod insertion hole 73 and a standard thermometer insertion hole 75 are formed in the side wall of the oil tank body; the upper panel 5 of the oil tank is provided with a thermometer inserting hole 51 and an exhaust hole 52 to be tested.

The control chamber side panel 4 is provided with honeycomb-shaped vent holes 41, so that heat dissipation of the control chamber is facilitated.

The controller is connected with the oil pump and a heating device for heating the oil tank, a transformer thermometer probe is arranged in the mailbox, the power supply provides power for the controller, the controller controls the heating device to heat oil in the oil tank, and after the thermometer to be measured is inserted into the oil tank, the oil temperature is increased to a set temperature.

The controller comprises a temperature control module and an oil speed control module, wherein the oil speed control module controls the rotating speed of the oil pump and the flow speed of the transformer oil so as to uniformly heat the transformer oil; the temperature control module makes the transformer oil temperature invariable through controlling the heating rod, and the model of temperature control module is: HS-650.

A debugging method of a main transformer thermometer comprises the following steps:

s1, inserting the oil input pipe into the mailbox from the thermometer inserting hole 51 to be tested on the upper panel of the mailbox, injecting the transformer oil into the oil tank 7, and taking out the oil input pipe after the mailbox is full;

s2, inserting the temperature probe of the thermometer to be verified into the thermometer insertion hole 51 to be tested of the upper panel of the oil tank, wherein the temperature probe is required to be completely immersed into the transformer oil;

s3, completing the line connection of the thermometer to be verified, which specifically comprises the following steps: 1) connecting a node to be checked on the thermometer to be checked with an indicator lamp in the operation panel by a lead; or, 2) connecting the node to be checked with an ammeter or a voltmeter on the operation panel by using a lead;

s4, setting a preset temperature of the temperature control device, switching on an external power supply, electrifying the controller, setting the temperature of the temperature control device as a setting temperature of a node to be checked, starting heating the transformer oil by the heating rod, and simultaneously starting the oil pump to uniformly heat the transformer oil to the preset temperature;

s5, when the heating rod heats the transformer oil to the setting temperature, the temperature control device controls the heating rod to stop heating;

s6, judging according to different connection modes in the step S3: 1) if the to-be-verified node is connected with an indicator lamp in the operation panel through a wire, whether the indicator lamp is lightened or not is checked, if the to-be-verified node is not lightened, the set temperature of the to-be-verified thermometer is not in accordance with the actual temperature, and the to-be-verified thermometer needs to be re-set until the indicator lamp is lightened;

2) if the node to be verified is connected with an ammeter or a voltmeter on the operation panel by a lead; and checking the specification of the thermometer, determining a current value or a voltage value corresponding to the set temperature, comparing the current value or the voltage value with a current value or a voltage value of an ammeter or a voltmeter on the operation panel, and if the error exceeds a specified value, indicating that the current output module or the voltage output module of the thermometer fails and needs to be replaced.

It should be noted that the detailed description of the invention is not included in the prior art, or can be directly obtained from the market, and the detailed connection mode can be widely applied in the field or daily life without creative efforts, and the detailed description is not repeated here.

Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.