阅读说明：本技术 一种数显压力测试检测仪 (Digital display pressure test detector ) 是由 王士召 高波 于 2021-06-07 设计创作，主要内容包括：一种数显压力测试检测仪,涉及压力测试技术领域,包括检测仪将从压力待检测设备检测到的压力值进行实时计算,并根据计算结果得出对应的压力控制装置的控制信息,并将控制信息转化成控制信号发送给压力控制装置,压力控制装置的工作状态进行切换以实现升压或稳压；压力待检测设备的压力设有初始值、目标值,压力待检测设备的压力从初始值至目标值的压力调节过程为一次升压、稳压、二次升压、稳压,检测仪在一次升压、二次升压正常完成时进行报警提示。本发明的测试仪能实现自动记录以及监控压力测试过程,以及自动判定测试结果,可节省人工成本以及避免人为判定测试结果造成不准确的可能性。(A digital display pressure test detector relates to the technical field of pressure test, and comprises a detector, a pressure sensor and a pressure controller, wherein the pressure sensor is used for detecting the pressure of a device to be tested; the pressure of the equipment to be detected is provided with an initial value and a target value, the pressure adjusting process of the equipment to be detected from the initial value to the target value is primary pressure boosting, voltage stabilizing, secondary pressure boosting and voltage stabilizing, and the detector gives an alarm when the primary pressure boosting and the secondary pressure boosting are normally completed. The tester can automatically record and monitor the pressure testing process and automatically judge the testing result, can save the labor cost and avoid the possibility of inaccurate result caused by artificially judging the testing result.)

1. The digital display pressure test detector is characterized in that the detector (1) calculates the pressure value detected by a device (5) to be detected in pressure in real time, obtains control information of a corresponding pressure control device (4) according to the calculation result, converts the control information into a control signal and sends the control signal to the pressure control device (4), and the working state of the pressure control device (4) is switched to realize boosting or stabilizing pressure;

the pressure of the equipment (5) to be detected is provided with an initial value and a target value, the pressure adjusting process of the equipment (5) to be detected from the initial value to the target value is primary pressure boosting, voltage stabilizing, secondary pressure boosting and voltage stabilizing, and the detector (1) gives an alarm when the primary pressure boosting and the secondary pressure boosting are normally completed.

2. The digital display pressure test detector according to claim 1, wherein the detector (1) comprises a pressure test interface (6), a pressure sensor (2) and a control panel (3), the pressure sensor (2) detects the real-time pressure value of the equipment to be detected for pressure (5) through the pressure test interface (6), the control panel (3) is connected with the pressure sensor (2) and a pressure control device (4), and the pressure control device (4) is connected with the equipment to be detected for pressure (5) to realize the pressure regulation of the equipment to be detected for pressure (5).

3. The digital display pressure testing detector according to claim 2, wherein the pressure sensor (2) is provided with an initial set value and a secondary set value, the initial set value is between an initial value and a target value, the secondary set value is the same as the target value, the working state of the pressure control device (4) is an open state and a closed state, and the control panel (3) comprises an alarm module (7) and a voltage stabilization timing module (8);

when the pressure stabilizing timing device works to stabilize the pressure, the control panel (3) controls the pressure control device (4) to switch from the closed state to the open state, when the pressure stabilizing time is up, the control panel (3) controls the pressure control device (4) to switch from the closed state to the open state, pressure control device (4) is right pressure is waited to examine equipment (5) and is carried out pressure input once more in pressure, pressure sensor (2) are compared real-time pressure value that detects with the secondary set value, work as pressure value that pressure sensor (2) detected reaches the secondary set value, will compare unanimous result and feed back to control panel (3), control panel (3) are again controlled pressure control device (4) switch over to the closed condition from the open condition, pressure control device (4) stop right pressure is waited to examine equipment (5) and is carried out pressure input, simultaneously alarm module (7) report to the police and indicate, later steady voltage timing module (8) work once more and carry out steady voltage, carry out steady voltage time.

4. The digital display pressure testing detector according to claim 3, wherein after the second time of pressure stabilization is completed, the pressure value of the equipment (5) to be detected for pressure can be reduced to the set percentage of the target value, the pressure sensor (2) is correspondingly provided with a three-time set value, and when the pressure value detected by the pressure sensor (2) reaches the three-time set value, the alarm module (7) gives an alarm.

5. The digital display pressure test detector according to claim 4, wherein a pressure data storage module (9) and a data processing module (10) are arranged in the control panel (3), the pressure data storage module (9) is used for storing pressure value signals detected by the pressure sensor (2), and the data processing module (10) is connected with the pressure data storage module (9);

the detector (1) further comprises a pressure display device (11), wherein the pressure display device (11) is connected with the data processing module (10) and is used for displaying a pressure-time curve graph of the equipment (5) to be detected for pressure.

6. The digital display pressure testing detector according to claim 5, wherein an oscilloscope (12) is arranged in the pressure display device (11), and the oscilloscope (12) is used for converting the pressure value signal into an electronic wave and displaying the electronic wave on the oscilloscope (12).

7. The digital display pressure test detector according to claim 1, wherein the pressure control device (4) is an electromagnetic control valve.

8. The digital display pressure test detector of claim 3, wherein the alarm prompt comprises an audio prompt, a text prompt or a light prompt.

Technical Field

The invention relates to the technical field of pressure testing, in particular to a digital display pressure testing detector.

Background

The pressure tester is an instrument for pressure resistance, pressure maintaining test, vacuum pressure maintaining test and other tests by taking helium, nitrogen and the like as test media, is mainly used for pressure-bearing equipment, plays a role in data detection during pressure test, and is also applied to refrigeration, air conditioning and other production workshops needing inflation pressure test and vacuum leakage test. The pressure-bearing equipment is used as equipment for detecting pressure, when the pressure tester is used, the pressure tester generally manually reads the reading of a precision digital display pressure gauge, records the pressure of the pressure-maintaining pressure and the pressure after the pressure-maintaining time is up, and manually judges whether the pressure resistance of a product meets the process requirements through comparison and calculation of pressure difference, namely, the result of the pressure test is reviewed, the pressure test process needs manual real-time visual monitoring and observation of the pressure test, and the manual judgment of whether the test result is qualified, so that the labor cost is increased, and the possibility that the test result is not accurate due to manual errors is increased, therefore, the pressure tester has the position to be improved.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a digital display pressure test detector, which has the following specific scheme:

a digital display pressure test detector calculates the pressure value detected by a device to be detected in pressure in real time, obtains the control information of a corresponding pressure control device according to the calculation result, converts the control information into a control signal and sends the control signal to the pressure control device, and the working state of the pressure control device is switched to realize boosting or stabilizing pressure;

the pressure of the equipment to be detected is provided with an initial value and a target value, the pressure adjusting process from the initial value to the target value of the equipment to be detected is primary pressure boosting, voltage stabilizing, secondary pressure boosting and voltage stabilizing, and the detector gives an alarm when the primary pressure boosting and the secondary pressure boosting are normally completed.

Further, the detector comprises a pressure testing interface, a pressure sensor and a control panel, wherein the pressure sensor detects the real-time pressure value of the equipment to be detected under pressure through the pressure testing interface, the control panel is connected with the pressure sensor and a pressure control device, and the pressure control device is connected with the equipment to be detected under pressure so as to realize pressure regulation of the equipment to be detected under pressure.

Furthermore, the pressure of the equipment to be detected is provided with an initial value and a target value, the pressure regulating process from the initial value to the target value of the equipment to be detected is primary pressure boosting, voltage stabilizing, secondary pressure boosting and voltage stabilizing, and the control panel carries out alarm prompting when the primary pressure boosting and the secondary pressure boosting are normally completed.

Further, the pressure sensor is provided with an initial set value and a secondary set value, the initial set value is between an initial value and a target value, the secondary set value is the same as the target value, the working state of the pressure control device is an open state and a closed state, and the control panel comprises an alarm module and a voltage stabilization timing module;

when the pressure value detected by the pressure sensor reaches the initial set value, the control panel controls the pressure control device to be switched from the open state to the closed state, the pressure control device stops the pressure input to the equipment to be detected, the alarm module gives an alarm prompt, the voltage stabilization timing module works to stabilize the voltage, after the voltage stabilization time is up, the control panel controls the pressure control device to be switched from the closed state to the open state, the pressure control device inputs the pressure again to the equipment to be detected, and the pressure sensor compares the pressure value detected in real time with the secondary set value, when the pressure value detected by the pressure sensor reaches a secondary set value, a comparison result is fed back to the control panel, the control panel controls the pressure control device to be switched from an open state to a closed state again, the pressure control device stops pressure input of the equipment to be detected for pressure, meanwhile, the alarm module gives an alarm, and then the voltage stabilization timing module works again to stabilize the voltage and execute the voltage stabilization time.

Further, after the pressure stabilization is completed for the second time, the pressure value of the equipment to be detected for pressure can be reduced to the set percentage of the target value, the pressure sensor is correspondingly provided with a three-time set value, and when the pressure value detected by the pressure sensor reaches the three-time set value, the alarm module gives an alarm prompt.

Further, a pressure data storage module and a data processing module are arranged in the control panel, the pressure data storage module is used for storing pressure value signals detected by the pressure sensor, and the data processing module is connected with the pressure data storage module;

the detector also comprises a pressure display device, wherein the pressure display device is connected with the data processing module and is used for displaying a pressure-time curve graph of the equipment to be detected under pressure.

Furthermore, an oscilloscope is arranged in the pressure display device, and the oscilloscope is used for converting the pressure value signal into electronic waves and displaying the electronic waves on the oscilloscope.

Further, the pressure control device is an electromagnetic control valve.

Further, the alarm prompt comprises a voice prompt, a text prompt or a light prompt.

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

(1) in the pressure testing process of the equipment to be tested, the detector not only realizes the pressure testing of the equipment to be tested, but also can automatically control the working state of the pressure control device in the real-time pressure testing, thereby controlling the pressure regulation of the equipment to be tested, and the operation is circulated until the equipment to be tested reaches the proper pressure. In addition, the pressure detection equipment can give an alarm when being used for the process from the first voltage boosting to the first voltage stabilizing and from the second voltage boosting to the second voltage stabilizing, the alarm module can give an alarm prompt when working, the pressure detection equipment can be intuitively informed to the working personnel to stably carry out pressure testing, the working personnel are not required to visually observe and monitor pressure data in real time, and whether the pressure data is qualified or not is not required to be judged according to the data, so that the labor cost can be saved, and the possibility that the test result is inaccurate due to manual judgment can be avoided.

Drawings

FIG. 1 is a simplified overall schematic diagram of an embodiment of the present invention;

FIG. 2 is a simplified connection diagram showing the control relationship according to the present invention.

Reference numerals: 1. a detector; 2. a pressure sensor; 3. a control panel; 4. a pressure control device; 5. pressure is detected by the equipment to be detected; 6. a pressure test interface; 7. an alarm module; 8. a voltage stabilization timing module; 9. a pressure data storage module; 10. a data processing module; 11. a pressure display device; 12. an oscilloscope.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.

With reference to fig. 1 and 2, a digital pressure test detector is used for data monitoring and early warning during a pressure test process. The pressure testing device can be used for any pressure equipment needing pressure testing, and the pressure equipment is used as the pressure detection equipment 5 in the embodiment. The detector 1 calculates the detected pressure value in real time, obtains control information of the corresponding pressure control device 4 according to the calculation result, converts the control information into a control signal and sends the control signal to the pressure control device 4, and the working state of the pressure control device 4 is switched to realize boosting or stabilizing pressure.

The detector 1 comprises a pressure test interface 6, a pressure sensor 2 and a control panel 3, wherein the pressure test interface 6 can be movably arranged, so that the pressure test interface can be conveniently assembled on different pressure-bearing devices for recycling. The pressure sensor 2 detects the real-time pressure value of the equipment to be tested 5 through the pressure testing interface 6, and the pressure sensor 2 forms the detected real-time pressure value into a specific sensing signal. Control panel 3 is connected with pressure sensor 2, pressure control device 4, and pressure sensor 2 feeds back control panel 3 after comparing sensing signal, and control panel 3 feeds back the control signal who forms to pressure control device 4, and pressure control device 4 is connected in order to realize the pressure regulation of pressure equipment of awaiting measuring 5 with pressure equipment of awaiting measuring 5.

According to the industrial specification, the pressure test of the pressure-bearing equipment corresponds to the standard process requirements, and the pressure test cannot be carried out at one time, so that the test error and the equipment damage can be caused. The pressure of the equipment to be tested 5 is provided with an initial value and a target value, namely, the pressure adjusting process from the initial value to the target value cannot be completed by one-time pressure increase, if the pressure-bearing equipment can smoothly realize the pressure from the initial value to the target value when the pressure test is completed, the pressure test is qualified, and the pressure resistance performance of the pressure-bearing equipment is qualified. In this embodiment, the pressure adjustment process of the pressure of the equipment for pressure detection 5 from the initial value to the target value is primary pressure increase, pressure stabilization, secondary pressure increase and pressure stabilization, so as to facilitate automatic, timely and accurate determination of the working results of pressure adjustment and pressure test, the control panel 3 performs alarm prompt when the primary pressure increase and the secondary pressure increase are normally completed, and the alarm prompt informs the staff that the test is qualified.

Therefore, the detector 1 substantially only realizes the pressure test of the pressure equipment to be detected 5 and automatically judges whether the test result is qualified, and can also automatically control the working state of the pressure control device 4 in the real-time pressure test, so as to control the pressure regulation of the pressure equipment to be detected 5, and the process is circulated until the pressure equipment to be detected 5 reaches the target pressure value, and the whole pressure test link is completed. Compared with the prior art, when the existing pressure tester is used, a worker needs to observe and record a pressure result in real time in the real-time pressure testing process, whether the process requirement is met is judged by comparing and calculating the pressure difference, and if deviation occurs, the worker may need to manually operate and control the pressure tester, so that the pressure regulation of the equipment 5 to be detected is realized. However, in the invention, the dependence on manpower is solved without the need of a worker to visually observe the pressure indication in real time and controlling the operation of the pressure test.

In detail, the pressure sensor 2 is provided with an initial set value and a secondary set value, the initial set value is between an initial value and a target value, the initial set value and the target value may have a proportional relationship, and the secondary set value and the target value are the same. The pressure control device 4 is set as an electromagnetic control valve, the working state of the pressure control device 4 is set as an opening state and a closing state aiming at the opening and closing state of the electromagnetic control valve during working, and the control panel 3 comprises an alarm module 7 and a voltage-stabilizing timing module 8.

Initially, the pressure control device 4 is in an open state, namely, the valve is opened and closed, pressure input is carried out on the equipment to be tested 5, the pressure of the equipment to be tested 5 is gradually increased relative to an initial value, the pressure sensor 2 compares a pressure value detected in real time with an initial set value, when the pressure value detected by the pressure sensor 2 reaches the initial set value, a result of the comparison consistency is fed back to the control panel 3, the control panel 3 controls the pressure control device 4 to be switched from the open state to the closed state, namely, the valve is closed, the pressure control device 4 stops pressure input to the equipment to be tested 5, the alarm module 7 carries out alarm prompt, then the voltage stabilization timing module 8 works to stabilize the voltage, after the voltage stabilization time is up, the control panel 3 controls the pressure control device 4 to be switched from the closed state to the open state, and the pressure control device 4 carries out pressure input on the equipment to be tested 5 again, the pressure sensor 2 compares the pressure value detected in real time with a secondary set value, when the pressure value detected by the pressure sensor 2 reaches the secondary set value, the result of the comparison is fed back to the control panel 3, the control panel 3 controls the pressure control device 4 to be switched from the open state to the closed state again, the pressure control device 4 stops pressure input to the equipment to be detected for pressure 5, meanwhile, the alarm module 7 gives an alarm to prompt, and then the pressure stabilization timing module 8 works again to stabilize the pressure and execute the pressure stabilization time.

In order to meet the special process requirements of some pressure-bearing equipment, after the pressure stabilization for the second time is finished, the pressure value of the equipment to be detected 5 can be reduced to the set percentage of the target value, the pressure sensor 2 is correspondingly provided with a three-time set value, and when the pressure value detected by the pressure sensor 2 reaches the three-time set value, the alarm module 7 gives an alarm.

The alarm prompt includes a voice prompt, a text prompt and a light prompt, which is not limited to this, the voice prompt may adopt a voice mode, a speaker and other similar broadcasting devices are installed on the control panel 3, and when the pressure value detected by the pressure sensor 2 reaches the initial set value, the secondary set value or the tertiary set value, a voice content such as "boost complete" is sent out, so that the voice content is convenient for the staff to hear. The text prompt can form a display area on the surface of the control panel 3, and when the pressure value detected by the pressure sensor 2 reaches an initial set value, a secondary set value or a tertiary set value, the text content of 'pressure boosting completion' appears, so that the text content is convenient for workers to see. The light suggestion can adopt the different LED lamp of three kinds of colours, and when the pressure value that pressure sensor 2 detected reached initial set value, secondary set value or cubic set value, the LED lamp of different colours corresponded in proper order and length is bright, and the workstation personnel of being convenient for see. Correspondingly, if the pressure value detected by the pressure sensor 2 fails to reach the initial set value, the secondary set value or the tertiary set value, the situation of the voice content or the text content of the abnormal boosting or the flickering of the LED lamp may also occur.

According to the foregoing, it can be summarized that, in the process from the first voltage boost to the first voltage stabilization of the pressure detection device 5, if the alarm module 7 performs normal alarm prompt during operation, the pressure value of the pressure detection device 5 can be gradually increased relative to the initial value, and the pressure value is kept unchanged for a certain time, so that the worker is visually informed that the pressure detection device 5 can perform stable pressure test, and does not need to judge whether the pressure is qualified according to data, and continue subsequent voltage stabilization, secondary voltage boost and voltage stabilization operations, if the alarm module 7 performs abnormal alarm prompt during operation, the worker is represented that the pressure detection device 5 operates abnormally, and the worker is informed that the pressure test does not need to be continued, thereby avoiding the waste of test cost.

The control panel 3 is provided with a pressure data storage module 9 and a data processing module 10, the pressure data storage module 9 is used for storing pressure value signals detected by the pressure sensor 2, and the data processing module 10 is connected with the pressure data storage module 9. In the process of testing the pressure of the pressure equipment to be detected, the pressure sensor 2 measures the pressure value in real time, the pressure data storage module 9 further collects the pressure value signals detected by the pressure sensor 2, and the data processing module 10 converts all the pressure value signals into digital signals.

The detector 1 further comprises a pressure display device 11, an oscilloscope 12 is arranged in the pressure display device 11, the pressure display device 11 is connected with the data processing module 10, and the oscilloscope 12 is used for converting the pressure value signal converted into the digital signal into an electronic wave to be displayed on the oscilloscope 12, so that a pressure-time curve graph of the device 5 to be detected in pressure is formed. Therefore, the staff can not only know whether the pressure testing process is normal and qualified according to the alarm module 7, but also can see the testing result and analyze the testing process in more detail and intuitively in the follow-up process through the pressure-time curve graph.

Preferably, the pressure display device 11 can be connected to a printing device, so that data and views in the oscilloscope 12 can be conveniently printed and checked.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.