Safety valve simulation experiment platform and verification simulation operation test method

Abstract

The invention relates to the pressure test equipment technology, in particular to a safety valve simulation experiment platform and a verification simulation operation test method.The safety valve simulation experiment platform comprises an exhaust component, an oil drain valve, a pressure pipe, a pressure gauge, a pressure retaining valve, a mounting support and an arc-shaped pipe; one end of the arc-shaped pipe is fixed at the top of the mounting bracket and is connected with a safety valve to be tested, one end of the pressure pipe is connected with the other end of the arc-shaped pipe, the pressure gauge is arranged at one end, close to the pressure pipe, of the arc-shaped pipe, and the pressure retaining valve is arranged on the pressure pipe. One end of the exhaust component penetrates through the arc-shaped pipe to extend into the safety valve to be tested, and the oil discharge valve is arranged between the exhaust valve and the pressure gauge and connected with the arc-shaped pipe. According to the safety valve simulation experiment platform, the safety valve to be tested can be calibrated and tested conveniently, the test cost is reduced, and the use stability of the safety valve to be tested is improved.

Description

Technical Field

[0001] The invention relates to pressure test equipment technology, and in particular to a safety valve simulation experiment platform and a verification simulation operation test method. Background Art

[0002] A safety valve is a device used to protect pressure vessels or pipeline systems. When the system pressure exceeds the set value, the safety valve will automatically open to release the pressure. In order to prevent the risk of explosion and rupture of pressurized equipment due to excessive pressure, safety valves must be installed on pressure vessels and pipelines for protection. When the pressure is higher than the safety valve action value, the safety valve will release the pressure, reduce the equipment pressure, and prevent the explosion and rupture of pressurized equipment.

[0003] According to national laws and regulations, the safety valve setting must be verified by a qualified unit every year. In actual use, most factories are relatively remote, especially hydropower stations, which are basically built in mountainous areas. The verification of safety valves is very difficult, and many hydropower stations transport them to qualified units for inspection. However, after the safety valve is verified, during the transportation back to the power station, the safety valve setting may drift in a small range due to the bumpy road. After the safety valve to be tested is installed, either the pressure equipment will be relieved during the pressure building process due to the decrease in the safety valve setting, or the pressure equipment will be exposed to safety hazards due to the increase in the safety valve setting. After the maintenance of a hydropower station unit, during the pressure building process of the governor, the safety valve was actuated before the pressure tank pressure reached the rated value due to the multiple drifts of the safety valve setting, which affected the maintenance period. In the worst case, because the safety valve setting drifted and the setting was close to the rated pressure of the pressure tank, the safety valve did not actuate during the maintenance process. After the unit was operated for a period of time, the safety valve actuated, affecting normal production work. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention provides a safety valve simulation test platform, which is convenient for calibrating and testing the safety valve to be tested, and improves the stability of the safety valve to be tested. An embodiment of the present invention also provides a safety valve verification simulation operation test method.

[0006] The safety valve simulation experiment platform according to an embodiment of the present invention comprises:

[0007] A mounting bracket and an arc tube, one end of the arc tube is fixed on the top of the mounting bracket and connected to the safety valve to be tested;

[0008] A pressure tube and a pressure gauge, wherein one end of the pressure tube is connected to the other end of the arc tube, the pressure gauge is arranged at one end of the arc tube adjacent to the pressure tube, and the pressure-maintaining valve is arranged on the pressure tube;

[0009] An exhaust component and an oil drain valve, wherein one end of the exhaust component passes through the arc tube to extend into the safety valve to be tested, and the oil drain valve is arranged between the exhaust valve and the pressure gauge and is connected to the arc tube.

[0010] The safety valve simulation experiment platform of the embodiment of the present invention is convenient for calibrating and testing the safety valve to be tested, reduces the testing cost, and improves the stability of the use of the safety valve to be tested.

[0011] In some embodiments, the safety valve simulation experiment platform further includes an oil receiving box, which is disposed at the bottom of the mounting bracket, and the outlet of the oil drain valve faces the oil receiving box.

[0012] In some embodiments, the oil receiving box is provided with a drain valve, and the drain valve is connected to the oil receiving box.

[0013] In some embodiments, the exhaust component includes an exhaust pipe and an exhaust valve, one end of the exhaust pipe is connected to the exhaust valve, and the other end of the exhaust pipe passes through the pressure pipe to extend into the safety valve to be tested.

[0014] In some embodiments, a radial dimension of the exhaust pipe is smaller than a radial dimension of the arc-shaped pipe.

[0015] The safety valve verification simulation operation test method of the embodiment of the present invention uses the safety valve simulation test platform as described above, and includes: installing the safety valve to be tested on the simulation test platform;

[0016] Install pressure-pressing equipment at the inlet of the pressure pipe;

[0017] Firstly, conduct an action value verification test on the safety valve to be tested, record the action value of the safety valve to be tested during the test, and compare it with the preset inspection value. If the action value is consistent with the value, then conduct a simulation test on the safety valve to be tested, otherwise re-verify the test.

[0018] The safety valve verification simulation operation test method of the embodiment of the present invention facilitates calibration and testing of the safety valve to be tested, reduces the test cost, and improves the stability of use of the safety valve to be tested.

[0019] In some embodiments, when performing an action setting verification test on a safety valve to be tested, the following steps are included:

[0020] Install a pressure device at the pressure pipe interface of the simulation test platform, wherein the pressure device is suitable for supplying liquid to the pressure pipe;

[0021] Close the oil drain valve and open the exhaust valve and pressure-maintaining valve;

[0022] Use a pressure-injection device to pump oil into the pressure pipe. After the liquid flows out of the exhaust valve, close the exhaust valve and continue to pump liquid until the safety valve to be tested operates to release pressure.

[0023] Record the action value of the safety valve to be tested and compare it with the preset test value. If the action value is consistent with the set value, it means it is qualified. Otherwise, re-test.

[0024] In some embodiments, when performing a simulation test on the safety valve to be tested, the following steps are included:

[0025] S1: Install a pressure device at the pressure pipe interface of the simulation test platform, wherein the pressure device is suitable for supplying gas to the pressure pipe;

[0026] S2: Close the oil drain valve and exhaust valve, and open the pressure maintaining valve.

[0027] S3: Use the pressure equipment to pump air into the pressure pipe. When the pressure gauge reading is equal to the rated pressure of the system using the safety valve to be tested, stop the pressure pumping and close the pressure-maintaining valve.

[0028] S4: Open the exhaust valve with a small opening. When the pressure drops to the minimum value of the system pressure of the safety valve to be tested, close the exhaust valve.

[0029] S5: Open the pressure-maintaining valve, use the pressure-injection equipment to pump air into the pressure pipe, and stop pumping when the pressure gauge reading is equal to the rated pressure of the system using the safety valve to be tested, and close the pressure-maintaining valve;

[0030] S6: Repeat S4 and S5 for 3 to 8 times.

[0031] S7: Use an air pump to pump air into the pressure pipe. When the pressure gauge reading is equal to 1.1 times the rated pressure of the system used by the safety valve to be tested, stop pumping, close the pressure-maintaining valve, and perform a pressure-maintaining test on the arc pipe.

[0032] In some embodiments, the arc tube is pressurized for 2 to 6 hours and the pressure of the arc tube does not change, and the simulation test of the simulated operation of the safety valve to be tested is terminated.

[0033] In some embodiments, when the action setting verification test of the safety valve to be tested is completed, the oil in the oil box is drained. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of a safety valve simulation experiment platform according to an embodiment of the present invention.

[0035] Figure 2 It is an isometric view of the safety valve simulation experimental platform according to an embodiment of the present invention.

[0036] Figure 3 It is a flow chart of an action setting verification test of a safety valve to be tested according to an embodiment of the present invention.

[0037] Figure 4 It is a flow chart of a simulation test of a safety valve to be tested in an embodiment of the present invention.

[0038] Reference numerals:

[0039] Mounting bracket 1, arc tube 2, pressure tube 3, pressure gauge 4, pressure maintaining valve 5,

[0040] Exhaust component 6, exhaust pipe 61, exhaust valve 62, oil drain valve 7, oil receiving box 8, drain valve 9, safety valve to be tested 10. DETAILED DESCRIPTION

[0041] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0042] like Figures 1 to 4 As shown, a simulation experimental platform for a safety valve 10 to be tested according to an embodiment of the present invention comprises:

[0043] An exhaust component 6, an oil drain valve 7, a pressure pipe 3, a pressure gauge 4, a pressure maintaining valve 5, a mounting bracket 1 and an arc tube 2, wherein one end of the arc tube 2 is fixed to the top of the mounting bracket 1 and is connected to the safety valve 10 to be tested, one end of the pressure pipe 3 is connected to the other end of the arc tube 2, the pressure gauge 4 is arranged at one end of the arc tube 2 adjacent to the pressure pipe 3, the pressure maintaining valve 5 is arranged on the pressure pipe 3, one end of the exhaust component 6 passes through the arc tube 2 to extend into the safety valve 10 to be tested, and the oil drain valve 7 is arranged between the exhaust valve 62 and the pressure gauge 4 and is connected to the arc tube 2.

[0044] The simulation experiment platform for the safety valve 10 to be tested in the embodiment of the present invention is convenient for calibrating and testing the safety valve 10 to be tested, reduces the testing cost, and improves the stability of the use of the safety valve 10 to be tested.

[0045] Specifically, the safety valve 10 to be tested is installed at the upper end of the arc tube 2, and the upper end of the arc tube 2 is fixed on the top of the mounting bracket 1, that is, the arc tube 2 is fixed on the upper end of the mounting bracket 1, and the arc tube 2 is bent downward to extend out of the mounting bracket 1, and the other end of the arc tube 2 is connected to the pressure tube 3, and the other end of the pressure tube 3 is connected to the pressure device, which can be an existing gas source pressure device or an oil pressure device to supply gas or liquid to the pressure tube 3 and the arc tube 2.

[0046] At the same time, one end of the exhaust component 6 passes through the arc tube 2 and is arranged inside the safety valve 10 to be tested, so as to facilitate exhausting the safety valve 10 to be tested, and can also cooperate with the pressure-injection equipment to simulate the pressure fluctuation of the real system to test the stability of the safety valve 10 to be tested. For example, use the air-injection equipment to inflate the pressure pipe 3, and stop the pressure injection when the reading of the pressure gauge 4 is equal to the rated pressure of the system used by the safety valve 10 to be tested, and close the pressure-maintaining valve 5. Open the exhaust valve 62 with a small opening, and when the pressure drops to the minimum value of the system pressure of the safety valve 10 to be tested, immediately close the exhaust valve 62. Open the pressure-maintaining valve 5, use the air-injection equipment to inflate the pressure pipe 3, and stop the pressure injection when the reading of the pressure gauge 4 is equal to the rated pressure of the system used by the safety valve 10 to be tested, and close the pressure-maintaining valve 5. This simulates the real system pressure fluctuation.

[0047] At the same time, the exhaust component 6 can also exhaust the air in the safety valve 10 to be tested when the pressure device is pressurizing the liquid, ensuring that the reading of the pressure gauge 4 is not disturbed by gas fluctuations.

[0048] The simulation experimental platform for the safety valve 10 to be tested in the embodiment of the present invention, by providing a mounting bracket 1, a pressure gauge 4, an arc pipe 2, an exhaust component 6 and an oil drain valve 7, is convenient for calibrating and testing the safety valve 10 to be tested after inspection by a unit with professional qualifications, thereby reducing the testing cost and improving the stability of the use of the safety valve 10 to be tested.

[0049] Furthermore, the simulation experiment platform of the safety valve 10 to be tested further includes an oil receiving box 8, which is arranged at the bottom of the mounting bracket 1, and the outlet of the oil drain valve 7 faces the oil receiving box 8. The oil receiving box 8 is used to collect the oil discharged by the oil drain valve 7 during the test. At the same time, the oil receiving box 8 is provided with a drain valve 9, which is connected to the oil receiving box 8. In order to centrally drain the oil in the oil receiving box 8.

[0050] In some embodiments, the exhaust component 6 includes an exhaust pipe 61 and an exhaust valve 62, one end of the exhaust pipe 61 is connected to the exhaust valve 62, and the other end of the exhaust pipe 61 passes through the pressure pipe 3 to extend into the safety valve 10 to be tested.

[0051] By setting an exhaust pipe 61 and an exhaust valve 62, one end of the exhaust pipe 61 extends into the safety valve 10 to be tested so as to exhaust the air in the safety valve 10 to be tested, thereby preventing the air in the safety valve 10 to be tested from affecting the test result. At the same time, the pressure fluctuation of the real system can be simulated on the safety valve 10 to be tested by the pressure testing equipment, thereby testing the stability of the safety valve 10 to be tested.

[0052] In some embodiments, the radial dimension of the exhaust pipe 61 is smaller than the radial dimension of the arc tube 2, so that the exhaust pipe 61 can be partially disposed in the arc tube 2, and conveniently extended into the interior of the safety valve 10 to be tested, so as to exhaust the air inside the safety valve 10 to be tested.

[0053] The safety valve verification simulation operation test method of the embodiment of the present invention uses the safety valve to be tested 10 simulation test platform as described above, and includes:

[0054] Install the safety valve 10 to be tested on the simulation test platform;

[0055] Install a pressure-pressing device at the inlet of the pressure pipe 3;

[0056] First, perform an action setting verification test on the safety valve 10 to be tested, record the action setting during the test of the safety valve 10 to be tested, and compare it with the preset verification setting. If the action value is consistent with the setting, then perform a simulation test on the safety valve 10 to be tested, otherwise re-verify the test.

[0057] The action setting is when the pressure equipment fails and cannot be stopped. The pressure of the pressure vessel continues to rise. In order to prevent the pressure vessel from exploding, the safety valve installed on the pressure vessel needs to open at the specified pressure value to release the pressure. The opening pressure value specified by the safety valve is the action setting.

[0058] By using the above-mentioned simulation experiment platform for the safety valve 10 to be tested, the safety valve 10 to be tested can be first subjected to an action set value verification test. If the action value is consistent with the set value, then a simulation test of the safety valve 10 to be tested can be conducted, and then the safety valve 10 to be tested can be subjected to a simulation test, so as to facilitate the subsequent installation and use of the safety valve 10 to be tested. The pressure-pressing equipment can be an existing gas source pressure-pressing equipment or an oil pressure pressure-pressing equipment, which is convenient for the safety valve 10 to be tested to conduct an action set value verification test of the safety valve 10 to be tested and a simulation test of the safety valve 10 to be tested. For example, by supplying oil through different types of pressure-pressing equipment, the safety valve 10 to be tested can be subjected to an action set value verification test, or by supplying gas through different types of pressure-pressing equipment, the safety valve 10 to be tested can be subjected to a simulation test, and the safety valve 10 to be tested can be subjected to a simulation test: the main purpose is to test the stability of the safety valve 10 to be tested by simulating the pressure fluctuation of the real system, and because the air molecules are small and the viscosity is small, the sealing performance of the safety valve 10 to be tested is better than that of oil and water. Ensure that the safety valve 10 to be tested has good sealing performance to avoid leakage of the safety valve 10 to be tested during operation.

[0059] The safety valve verification simulation operation test method of the embodiment of the present invention has the following beneficial effects: first, the test equipment is simple and the manufacturing cost is extremely low; second, through the action fixed value verification test and simulation operation simulation test of the safety valve 10 to be tested, the actual action value and sealing performance of the safety valve 10 to be tested can be judged before the safety valve 10 to be tested is installed. It can avoid the drift of the fixed value of the safety valve 10 to be tested due to inaccurate inspection or vehicle bumps on the road, which causes the fixed value of the safety valve 10 to be tested to become larger or smaller, and finally causes accidents such as accident shutdown of the generator set, explosion or rupture of pressure equipment, and personal injury.

[0060] At present, a hydropower station has used this method, and the test result accuracy rate is as high as 100%. It is convenient to calibrate and test the safety valve 10 to be tested, reduce the test cost, and improve the stability of the use of the safety valve 10 to be tested.

[0061] In some embodiments, when performing an action setting verification test on the safety valve 10 to be tested, the following steps are included:

[0062] S100: installing a pressure device at the interface of the pressure pipe 3 of the simulation test platform, wherein the pressure device supplies liquid to the pressure pipe 3;

[0063] S200: close the oil drain valve 7, and open the exhaust valve 62 and the pressure retaining valve 5;

[0064] S300: Use a pressure device to pump oil into the pressure pipe 3. After the liquid flows out from the exhaust valve 62, close the exhaust valve 62 and continue to pump the liquid until the safety valve 10 to be tested is actuated to release pressure;

[0065] S400: Record the action value of the safety valve 10 to be tested, and compare it with the preset test value. If the action value is consistent with the set value, it means it is qualified. Otherwise, re-test.

[0066] The simulation operation test method for verifying the safety valve 10 to be tested in the embodiment of the present invention verifies whether the action setting value of the safety valve 10 to be tested is correct through simulation operation test. Only the action setting value that is qualified can be installed to ensure the safety of the pressure vessel and the pipeline.

[0067] In some embodiments, when the safety valve 10 to be tested is simulated and runs a simulation test, the following steps are included:

[0068] S1: Connecting a pressure device to the interface of the pressure pipe 3 of the simulation test platform, wherein the pressure device is suitable for supplying gas to the pressure pipe 3;

[0069] S2: Close the oil drain valve 7 and the exhaust valve 62, and open the pressure maintaining valve 5.

[0070] S3: Use a pressure-injection device to pump air into the pressure pipe 3. When the reading on the pressure gauge 4 is equal to the rated pressure of the system using the safety valve 10 to be tested, stop the pressure injection and close the pressure-retaining valve 5.

[0071] S4: Open the exhaust valve 62 with a small opening, and when the pressure drops to the minimum value of the system pressure of the safety valve 10 to be tested, close the exhaust valve 62;

[0072] S5: Open the pressure-maintaining valve 5, use the pressure-injection equipment to pump air into the pressure pipe 3, and stop the pressure injection when the reading of the pressure gauge 4 is equal to the rated pressure of the system used by the safety valve 10 to be tested, and close the pressure-maintaining valve 5;

[0073] S6: Repeat S4 and S5 for 3 to 8 times.

[0074] S7: Use an air pumping device to pump air into the pressure pipe 3. When the pressure gauge 4 reading is equal to 1.1 times the rated pressure of the system used by the safety valve 10 to be tested, stop pumping, close the pressure-maintaining valve 5, and perform a pressure-maintaining test on the arc pipe 2.

[0075] Specifically, the pressure test equipment is suitable for supplying gas by conducting a simulated operation test of the safety valve 10 to be tested. The purpose is to test the stability of the safety valve 10 to be tested by simulating the pressure fluctuation of the real system, and because the volume and viscosity of air molecules are smaller than those of oil molecules, the sealing performance of the safety valve 10 to be tested by gas testing is better than that of oil and water. Ensure that the sealing performance of the safety valve 10 to be tested is good and avoid leakage of the safety valve 10 to be tested during operation.

[0076] Furthermore, the arc tube 2 is pressurized for 2 to 6 hours and the pressure of the arc tube does not change, and the simulation test of the simulated operation of the safety valve 10 to be tested is ended. For example, if the pressure of the arc tube 2 is maintained for 3 hours and the pressure does not change, it means that the safety valve 10 to be tested is reliable and tightly sealed. In other words, the change of gas pressure during pressure maintenance is within an acceptable range. At this time, the simulation test of the simulated operation of the safety valve 10 to be tested is ended, and the safety valve 10 to be tested can be used without worry.

[0077] In some embodiments, when the action setting verification test of the safety valve 10 to be tested is completed, the oil in the oil receiving box 8 is drained. Avoid the oil from accumulating in the oil receiving box 8. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0078] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0079] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0080] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0081] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0082] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A safety valve simulation experimental platform, characterized in that: include: A mounting bracket and an arc tube, one end of the arc tube is fixed on the top of the mounting bracket and connected to the safety valve to be tested; A pressure-maintaining valve, a pressure pipe and a pressure gauge, wherein one end of the pressure pipe is connected to the other end of the arc-shaped pipe, the pressure gauge is arranged at one end of the arc-shaped pipe adjacent to the pressure pipe, and the pressure-maintaining valve is arranged on the pressure pipe; An exhaust component and an oil drain valve, one end of the exhaust component passes through the arc tube to extend into the safety valve to be tested, and the oil drain valve is arranged between the exhaust valve and the pressure gauge and is connected to the arc tube.

2. The safety valve simulation experimental platform according to claim 1 is characterized in that: It also includes an oil receiving box, which is arranged at the bottom of the mounting bracket, and the outlet of the oil drain valve faces the oil receiving box.

3. The safety valve simulation experimental platform according to claim 1 is characterized in that: The oil receiving box is provided with a drain valve, and the drain valve is connected to the oil receiving box.

4. The safety valve simulation experimental platform according to claim 1 is characterized in that: The exhaust component comprises an exhaust pipe and an exhaust valve. One end of the exhaust pipe is connected to the exhaust valve, and the other end of the exhaust pipe passes through the pressure pipe to extend into the safety valve to be tested.

5. The safety valve simulation experimental platform according to claim 4 is characterized in that: The radial dimension of the exhaust pipe is smaller than the radial dimension of the arc-shaped pipe.

6. A safety valve verification simulation operation test method, using the safety valve simulation test platform as described in any one of claims 1 to 5, characterized in that: include: Install the safety valve to be tested on the simulation test platform; Install pressure-pressing equipment at the inlet of the pressure pipe; Firstly, conduct an action value verification test on the safety valve to be tested, record the action value of the safety valve to be tested during the test, and compare it with the preset inspection value. If the action value is consistent with the value, then conduct a simulation test on the safety valve to be tested, otherwise re-verify the test.

7. The safety valve verification simulation operation test method according to claim 6 is characterized in that: When the action setting verification test is carried out on the safety valve to be tested, the following steps are included: Install a pressure device at the pressure pipe interface of the simulation test platform, wherein the pressure device is suitable for supplying liquid to the pressure pipe; Close the oil drain valve and open the exhaust valve and pressure-maintaining valve; Use a pressure-injection device to pump oil into the pressure pipe. After the liquid flows out of the exhaust valve, close the exhaust valve and continue to pump liquid until the safety valve to be tested operates to release pressure. Record the action value of the safety valve to be tested and compare it with the preset test value. If the action value is consistent with the set value, it means it is qualified. Otherwise, re-test.

8. The safety valve verification simulation operation test method according to claim 7 is characterized in that: When running a simulation test on the safety valve to be tested, the following steps are included: S1: Install a pressure device at the pressure pipe interface of the simulation test platform, wherein the pressure device is suitable for supplying gas to the pressure pipe; S2: Close the oil drain valve and exhaust valve, and open the pressure maintaining valve. S3: Use the pressure equipment to pump air into the pressure pipe. When the pressure gauge reading is equal to the rated pressure of the system using the safety valve to be tested, stop the pressure pumping and close the pressure-maintaining valve. S4: Open the exhaust valve with a small opening. When the pressure drops to the minimum value of the system pressure of the safety valve to be tested, close the exhaust valve. S5: Open the pressure-maintaining valve, use the pressure-injection equipment to pump air into the pressure pipe, and stop pumping when the pressure gauge reading is equal to the rated pressure of the system using the safety valve to be tested, and close the pressure-maintaining valve; S6: Repeat S4 and S5 for 3 to 8 times. S7: Use an air pump to pump air into the pressure pipe. When the pressure gauge reading is equal to 1.1 times the rated pressure of the system used by the safety valve to be tested, stop pumping, close the pressure-maintaining valve, and perform a pressure-maintaining test on the arc pipe.

9. The safety valve verification simulation operation test method according to claim 7 is characterized in that: The arc pipe is pressurized for 2 to 6 hours and the pressure of the arc pipe does not change, thus completing the simulation test of the simulated operation of the safety valve to be tested.

10. The safety valve verification simulation operation test method according to claim 7, characterized in that: When the action setting verification test of the safety valve to be tested is completed, the oil in the oil box should be drained.

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