CN218971563U - Solenoid valve detection device and equipment - Google Patents
Solenoid valve detection device and equipment Download PDFInfo
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- CN218971563U CN218971563U CN202223439164.3U CN202223439164U CN218971563U CN 218971563 U CN218971563 U CN 218971563U CN 202223439164 U CN202223439164 U CN 202223439164U CN 218971563 U CN218971563 U CN 218971563U
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Abstract
The utility model discloses a solenoid valve detection device and equipment, comprising: the test integrated block is used for installing the electromagnetic valve; the test integrated block comprises an oil inlet, a working oil port and an oil drain port; the oil pump is communicated with the oil inlet and used for supplying oil pressure to the test integrated block; the first pressure gauge is arranged between the oil pump and the oil inlet and used for detecting the pressure of the oil inlet; the isolating valve is communicated with the working oil port and used for controlling the on-off of the working oil path; the second pressure gauge is arranged between the isolation valve and the working oil port and used for detecting the pressure of the working oil port; and the first flowmeter is communicated with the oil drain port and is used for detecting whether the electromagnetic valve drains oil or not. The utility model can realize the detection of the pressure and the internal leakage after the action of the electromagnetic valve and judge whether the performance of the electromagnetic valve accords with the use standard.
Description
Technical Field
The utility model relates to the technical field of electromagnetic valve testing, in particular to an electromagnetic valve detection device and equipment.
Background
The thermal power plant generally adopts hydraulic pressure as a power source to control an inlet valve and an automatic main valve of a steam turbine, various electromagnetic valves inevitably used in a hydraulic system are generally arranged on a 300MW unit for protecting the steam turbine, and OPC (overspeed protection) electromagnetic valves and AST (emergency cut-off) electromagnetic valves are generally arranged on the 300MW unit for protecting the steam turbine by cutting off the power of the hydraulic control valve under abnormal working conditions to close the speed regulating valve. Because the thermal power plant unit needs to run continuously, especially AST and OPC solenoid valves cannot be replaced under the condition that the unit is not stopped. Therefore, important electromagnetic valve performance needs to be detected during regular maintenance of the unit so as to discover hidden danger of the electromagnetic valve in advance.
In the maintenance process of the prior art, an AST (automatic test equipment) and OPC (automatic test equipment) electromagnetic valve are electrified and powered off to check whether the slide valve acts or not, and whether the working state of the electromagnetic valve is normal or not is judged. Since this determination method can only determine the solenoid valve operation, it cannot be determined whether the solenoid valve is in place or not, and whether the solenoid valve has an internal leakage condition or not, and therefore, whether the performance of the solenoid valve meets the use standard or not cannot be determined.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a solenoid valve detection device and equipment, which can detect the pressure and internal leakage after the action of a solenoid valve and judge whether the performance of the solenoid valve meets the use standard.
The utility model is realized by the following technical scheme:
a solenoid valve detection apparatus comprising:
the test integrated block is used for installing the electromagnetic valve; the test integrated block comprises an oil inlet, a working oil port and an oil drain port;
the oil pump is communicated with the oil inlet and used for supplying oil pressure to the test integrated block;
the first pressure gauge is arranged between the oil pump and the oil inlet and used for detecting the pressure of the oil inlet;
the isolating valve is communicated with the working oil port and used for controlling the on-off of the working oil path;
the second pressure gauge is arranged between the isolation valve and the working oil port and used for detecting the pressure of the working oil port;
and the first flowmeter is communicated with the oil drain port and is used for detecting whether the electromagnetic valve drains oil or not.
Furthermore, the electromagnetic valve detection device further comprises an oil storage tank, and the oil storage tank is simultaneously communicated with the working oil port and the oil drain port.
Further, the electromagnetic valve detection device further comprises a pressure regulating valve, an inlet of the pressure regulating valve is communicated with the oil pump, an outlet of the pressure regulating valve is communicated with the oil inlet, and an overflow port of the pressure regulating valve is communicated with the oil storage tank.
Further, the electromagnetic valve detection device further comprises a second flowmeter, and the second flowmeter is arranged between the first pressure gauge and the oil inlet.
Further, the electromagnetic valve detection device further comprises a filter screen, and the filter screen is arranged between an inlet of the pressure regulating valve and the oil pump.
Further, the electromagnetic valve detection device further comprises a third pressure gauge, and the third pressure gauge is arranged between the filter screen and the oil pump.
Further, the electromagnetic valve detection device further comprises a filter element, and the filter element is arranged at the inlet of the oil pump.
The electromagnetic valve detection device comprises a bracket and the electromagnetic valve detection device, wherein the electromagnetic valve detection device is arranged on the bracket.
Further, the electromagnetic valve detection equipment further comprises a temperature controller, and the temperature controller is arranged on the bracket and used for adjusting the test temperature of the electromagnetic valve detection device.
Compared with the prior art, the utility model has the advantages that:
1. the pressure detection before and after the valve of the electromagnetic valve is carried out by setting the first pressure gauge and the second pressure gauge, the quantitative detection is carried out on the internal leakage of the electromagnetic valve by setting the first flow gauge, whether the performance of the electromagnetic valve accords with the use standard is judged, once the electromagnetic valve is found to be in an abnormal state, the electromagnetic valve can be processed in time, the reliability of electromagnetic valve parts of the hydraulic control device of the thermal power plant is improved, and the failure rate during the operation period is reduced.
Drawings
FIG. 1 is a schematic diagram illustrating piping connection of a solenoid valve detection apparatus according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a solenoid valve detection apparatus;
fig. 3 is a schematic diagram of a second structure of the electromagnetic valve detecting apparatus.
1. Testing the integrated block; 100. an oil inlet; 101. a working oil port; 102. an oil drain port; 2. an oil pump; 20. an inlet; 3. a first pressure gauge; 4. an isolation valve; 5. a second pressure gauge; 6. a first flowmeter; 7. an oil storage tank; 8. a pressure regulating valve; 80. an inlet; 81. an outlet; 82. an overflow port; 9. a second flowmeter; 10. a filter screen; 11. a third pressure gauge; 12. a filter element; 13. a bracket; 14. a temperature controller; 15. and an access port.
Detailed Description
The technical scheme of the utility model is further described in non-limiting detail below with reference to the preferred embodiments and the accompanying drawings. In the description of the present utility model, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. refer to the azimuth or positional relationship based on the azimuth or positional relationship shown in the drawings. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
As shown in fig. 1, an electromagnetic valve detection apparatus according to an embodiment of the present utility model includes a test integrated block 1, an oil pump 2, a first pressure gauge 3, an isolation valve 4, a second pressure gauge 5, a first flowmeter 6, an oil reservoir 7, a pressure regulating valve 8, a second flowmeter 9, a filter screen 10, a third pressure gauge 11, and a filter element 12.
The test integrated block 1 is used for installing the electromagnetic valve, and the test integrated block 1 comprises an oil inlet 100, a working oil port 101 and an oil drain port 102; the oil pump 2 is communicated with the oil inlet 100 and is used for supplying oil pressure to the test integrated block 1; the isolation valve 4 is communicated with the working oil port 101 and used for controlling the on-off of a working oil way; the second pressure gauge 5 is arranged between the isolation valve 4 and the working oil port 101 and is used for detecting the pressure of the working oil port 101; the first flowmeter 6 and the oil drain port 102 are communicated for detecting whether the solenoid valve is drained. The oil reservoir 7 communicates with both the working port 101 and the drain port 102.
The inlet 80 of the pressure regulating valve 8 is communicated with the oil pump 2, the outlet 81 of the pressure regulating valve 8 is communicated with the oil inlet 100, and the overflow port 82 of the pressure regulating valve 8 is communicated with the oil storage tank 7. The pressure regulating valve 8 plays roles of overflow and pipeline protection, working oil pressure is set to be 14.5+/-0.5 Mpa according to an EH oil device of a power plant, the pressure is realized by adjusting the oil pump 2, in the embodiment, the pressure regulating valve 8 sets 17.5+/-0.5 Mpa action pressure, and when overpressure occurs, the overflow port 82 is opened to release oil pressure of a main pipeline, so that the overflow protection effect is realized on the main pipeline.
The first pressure gauge 3 is disposed between the oil pump 2 and the oil inlet 100 for detecting the pressure of the oil inlet 100, and the pressure measured by the first pressure gauge 3 should be the pressure set by the pressure regulating valve 8, namely 17.5±0.5Mpa under normal conditions.
The second flowmeter 9 is arranged between the first pressure gauge 3 and the oil inlet 100 for detecting the total flow of the supplied oil, and the filter screen 10 is arranged between the inlet 80 of the pressure regulating valve 8 and the oil pump 2.
A third pressure gauge 11 is provided between the filter screen 10 and the oil pump 2 to detect the outlet pressure of the oil pump 2.
The filter cartridge 12 is arranged at an inlet 20 of the oil pump 2.
As shown in fig. 2 and 3, the utility model also discloses a solenoid valve detection device, which comprises a bracket 13, a temperature controller 14 and the solenoid valve detection device, wherein the solenoid valve detection device is arranged on the bracket 13, and the temperature controller 14 is also arranged on the bracket 13 and used for adjusting the test temperature of the solenoid valve detection device.
When the normally open electromagnetic valve is detected during operation, an oil supply device (not shown in the figure) is connected to an inlet 15 of the device, the normally open electromagnetic valve is firstly arranged on a test integrated block 1, an isolation valve 4 is closed, an oil pump 2 is started to load working oil pressure, oil enters from an oil inlet 100, if the values of a first pressure gauge 3 and a second pressure gauge 5 are consistent, the normal working state of the normally open electromagnetic valve is indicated, and the internal leakage flow of the electromagnetic valve at the opening position is judged according to a first flowmeter 6; then, the normally open electromagnetic valve is electrified to be closed by the working voltage, at the moment, the working oil way is conducted with an oil return way (not shown in the figure), if the pressure of the second pressure gauge 5 is zero, the electromagnetic valve is indicated to be normal in switching action, and at the moment, the internal leakage flow of the electromagnetic valve at the closing position can be detected through the value of the first flowmeter 6.
When detecting the normally closed electromagnetic valve, firstly, the normally closed electromagnetic valve is also arranged on the test integrated block 1, the isolation valve 4 is closed, the oil pump 2 is started to load working oil pressure, oil enters from the oil inlet 100, if the pressure of the second pressure gauge 5 is zero, the electromagnetic valve is normal, and the internal leakage flow of the electromagnetic valve at the closing position is judged according to the first flowmeter 6; and the normally closed electromagnetic valve is electrified and opened by the working voltage, if the values of the first pressure gauge 3 and the second pressure gauge 5 are consistent, the normal working state of the normally closed electromagnetic valve is indicated, and the internal leakage flow of the electromagnetic valve at the opening position can be detected through the value of the first flowmeter 6.
By quantitatively detecting the front and rear valve pressure and internal leakage of the electromagnetic valve, whether the performance of the electromagnetic valve accords with the use standard is judged, once the electromagnetic valve is found to be in an abnormal state, the electromagnetic valve can be processed in time, the reliability of electromagnetic valve parts of a hydraulic control system of a thermal power plant is improved, and the failure rate in the operation period is reduced.
The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (9)
1. A solenoid valve detection apparatus, characterized by comprising:
a test integrated block (1) for mounting the solenoid valve; the test integrated block (1) comprises an oil inlet (100), a working oil port (101) and an oil drain port (102);
an oil pump (2) communicated with the oil inlet (100) for supplying oil pressure to the test integrated block (1);
the first pressure gauge (3) is arranged between the oil pump (2) and the oil inlet (100) and is used for detecting the pressure of the oil inlet (100);
the isolation valve (4) is communicated with the working oil port (101) and used for controlling the on-off of a working oil way;
the second pressure gauge (5) is arranged between the isolation valve (4) and the working oil port (101) and is used for detecting the pressure of the working oil port (101);
and the first flowmeter (6) is communicated with the oil drain port (102) and is used for detecting whether the electromagnetic valve drains oil or not.
2. The electromagnetic valve detection apparatus according to claim 1, further comprising a reservoir (7), the reservoir (7) being in communication with the working port (101) and the drain port (102) simultaneously.
3. The electromagnetic valve detection apparatus according to claim 2, further comprising a pressure regulating valve (8), an inlet (80) of the pressure regulating valve (8) being in communication with the oil pump (2), an outlet (81) of the pressure regulating valve (8) being in communication with the oil inlet (100), and an overflow port (82) of the pressure regulating valve (8) being in communication with the oil reservoir (7).
4. A solenoid valve detection arrangement according to claim 3, characterized in that the solenoid valve detection arrangement further comprises a second flowmeter (9), the second flowmeter (9) being arranged between the first pressure gauge (3) and the oil inlet (100).
5. The electromagnetic valve detection apparatus according to claim 4, further comprising a filter screen (10), the filter screen (10) being disposed between an inlet (80) of the pressure regulating valve (8) and the oil pump (2).
6. The electromagnetic valve detection apparatus according to claim 5, further comprising a third pressure gauge (11), the third pressure gauge (11) being disposed between the filter screen (10) and the oil pump (2).
7. The solenoid valve detection device according to claim 1, characterized in that it further comprises a filter cartridge (12), said filter cartridge (12) being arranged at an inlet (20) of the oil pump (2).
8. A solenoid valve detection apparatus characterized by comprising a bracket (13) and a solenoid valve detection device according to any one of claims 1-7, said solenoid valve detection device being provided on said bracket (13).
9. The electromagnetic valve detection apparatus according to claim 8, further comprising a temperature controller (14), the temperature controller (14) being provided at the bracket (13) for adjusting a test temperature of the electromagnetic valve detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223439164.3U CN218971563U (en) | 2022-12-21 | 2022-12-21 | Solenoid valve detection device and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223439164.3U CN218971563U (en) | 2022-12-21 | 2022-12-21 | Solenoid valve detection device and equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218971563U true CN218971563U (en) | 2023-05-05 |
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ID=86153614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223439164.3U Active CN218971563U (en) | 2022-12-21 | 2022-12-21 | Solenoid valve detection device and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218971563U (en) |
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2022
- 2022-12-21 CN CN202223439164.3U patent/CN218971563U/en active Active
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