Hydraulic component testing and verifying device

Abstract

The utility model relates to a hydraulic component testing and verifying device which comprises an oil tank and a booster pump, the oil tank is connected with the input end of the booster pump to provide hydraulic oil, and the output end of the booster pump is provided with a pressure output pipeline. The pressure output pipeline comprises a high-pressure testing pipeline, a medium-pressure testing pipeline and a pilot testing pipeline which can be used for testing independently, and joints for testing are arranged on the three testing pipelines respectively; the medium-pressure test pipeline and the pilot test pipeline are respectively provided with a medium-pressure pressure regulating valve and a pilot pressure regulating valve which are used for outputting different test pressure range values so as to meet different test pressure value requirements; by arranging the booster pump, the problem that manual pressurizing of a manual pump is difficult is solved, the multiple independent pressure output pipelines can cope with components with different test pressure range values, or different pressures are applied to some special components at the same time for testing, the pressurizing test requirement is met, and the testing efficiency is improved. The problem that the pressing test is difficult in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the field of wellhead control panel maintenance, in particular to a hydraulic component test and calibration device. Background Art

[0002] The wellhead control panel collects information such as wellhead pressure, process pressure, temperature, and fire and gas detection systems, and realizes local shutdown and remote shutdown operations of surface and downhole safety valves. It is an important well control device.

[0003] Hydraulic components are the core components of the wellhead control panel and need to be regularly maintained. However, at present, when maintaining the hydraulic components of the wellhead control panel, a simple pressure test is still carried out relying on a manual pump. The working pressure of the hydraulic components of the control system is basically between 80 - 10000 psi, and the required test pressure value has a large span. When the required pressure is too high, it is very difficult for the staff to operate the manual pump to reach the predetermined pressure value. When the required pressure is too low, the manual pump will exceed the required pressure value slightly by accident, and it is difficult to accurately control. At the same time, the mechanical gauges currently used in on-site testing have a large range and low accuracy, and there are large errors in the testing process. When the accuracy requirements are relatively high, rework is often required due to non-compliance. Moreover, some special components require multiple pressure values for testing at the same time, and it is difficult for the staff to take them all into account, ultimately leading to the problem of difficult pressure testing of the hydraulic components of the wellhead control panel. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a hydraulic component test and calibration device to solve the problem of difficult pressure testing of components of the wellhead control panel in the prior art.

[0005] To solve the above problems, the hydraulic component test and calibration device of the utility model adopts the following technical solutions:

[0006] A hydraulic component test and calibration device of the utility model includes an oil tank and a booster pump. The oil tank is connected to the input end of the booster pump to provide hydraulic oil. A pressure output pipeline is provided at the output end of the booster pump. The pressure output pipeline includes a high-pressure test pipeline, a medium-pressure test pipeline, and a pilot test pipeline that can be independently tested with each other. Connectors for testing are respectively provided on the three test pipelines. Medium-pressure regulating valves and pilot regulating valves are respectively provided on the medium-pressure test pipeline and the pilot test pipeline to output different test pressure range values to cope with components with different test pressure value requirements.

[0007] Further, a high-pressure oil supply valve is provided on the high-pressure test pipeline, and the medium-pressure test pipeline is connected between the high-pressure oil supply valve and the output end of the booster pump; the pilot test pipeline is connected to the medium-pressure test pipeline after the medium-pressure regulating valve.

[0008] Further, the connectors for testing on the high-pressure test pipeline, medium-pressure test pipeline, and pilot test pipeline are a high-pressure test connector, a medium-pressure test connector, and a pilot test connector respectively. A high-pressure test oil supply valve, a medium-pressure test oil supply valve, and a pilot test oil supply valve are respectively provided in front of the high-pressure test connector, the medium-pressure test connector, and the pilot test connector.

[0009] Further, a high-pressure accumulator is provided between the high-pressure oil supply valve and the high-pressure test oil supply valve, a medium-pressure accumulator is provided between the medium-pressure pressure regulating valve and the medium-pressure test oil supply valve, and a pilot accumulator is provided between the pilot pressure regulating valve and the pilot test oil supply valve.

[0010] Further, a digital display pressure gauge is also provided on the pilot test pipeline.

[0011] Further, the booster pump is a pneumatic hydraulic pump.

[0012] Further, a first one-way valve for preventing the hydraulic oil from flowing back is provided between the high-pressure oil supply valve and the booster pump, and a second one-way valve for preventing the hydraulic oil from flowing back is provided between the medium-pressure oil supply valve and the booster pump.

[0013] Further, the hydraulic component test and calibration device further includes a protective box body. The connectors for testing on the high-pressure test pipeline, medium-pressure test pipeline, and pilot test pipeline are installed on the inner side wall of the protective box body, and the protective box body is provided with a protective cover.

[0014] Further, the protective cover is provided with an observation port, and a wire mesh is provided inside the observation port.

[0015] Further, the hydraulic component test and calibration device has an outer cabinet that can accommodate internal components, and universal wheels are provided at the bottom of the cabinet.

[0016] Beneficial effects: The present utility model provides a brand-new hydraulic component test and calibration device. Since a booster pump is provided to replace the traditional manual pump for pressure boosting, the problems of insufficient pressure boosting and insufficient pressure boosting accuracy are solved; by providing three high-pressure test pipelines, medium-pressure test pipelines, and pilot test pipelines that can be independently tested with each other, and respectively providing a medium-pressure pressure regulating valve and a pilot pressure regulating valve on the medium-pressure test pipeline and the pilot test pipeline to adjust the pressure, the output of different test pressure range values is realized. At the same time, some special components can also be tested with different pressures applied by two different pressure output pipelines, meeting the pressure boosting test requirements of various hydraulic components and solving the problem of difficult pressure boosting test in the prior art. Description of the Drawings

[0017] Figure 1 It is a three-dimensional view of an embodiment of a hydraulic component test and calibration device of the present utility model;

[0018] Figure 2Schematic diagram of the internal structure of an embodiment of a hydraulic component test and calibration device of the present utility model;

[0019] Figure 3 Schematic diagram of the working principle of an embodiment of a hydraulic component test and calibration device of the present utility model;

[0020] Figure 4 Schematic diagram of the structure of the control panel of an embodiment of a hydraulic component test and calibration device of the present utility model;

[0021] Figure 5 Schematic diagram of the structure of the test box of an embodiment of a hydraulic component test and calibration device of the present utility model.

[0022] In the figure: 1. Cabinet; 11. Cabinet door; 12. Protective cover; 13. Lock; 14. Universal wheel; 15. Wire mesh; 2. Control panel; 201. Digital display pressure gauge; 202. Power button; 203. Pneumatic pump pressure gauge; 204. Pneumatic hydraulic pump switch; 205. Pilot pressure regulating valve; 206. Medium-pressure pressure regulating valve; 207. Pilot pressure gauge; 208. Pilot oil supply valve; 209. Pilot test oil supply valve; 210. Pilot pressure relief valve; 211. Medium-pressure pressure gauge; 212. Medium-pressure oil supply valve; 213. Medium-pressure test oil supply valve; 214. Medium-pressure pressure relief valve; 215. High-pressure pressure gauge; 216. High-pressure oil supply valve; 217. High-pressure test oil supply valve; 218. High-pressure pressure relief valve; 3. Protective box; 31. Fixed bracket; 321. Pilot test joint; 322. Pilot test joint; 331. Medium-pressure test joint; 332. Medium-pressure test joint; 341. High-pressure test joint; 342. High-pressure test joint; 4. Accumulator support; 41. High-pressure accumulator; 42. Medium-pressure accumulator; 43. Pilot accumulator; 44. High-pressure stop valve; 45. Medium-pressure stop valve; 46. Pilot stop valve; 47. High-pressure overflow valve; 48. Medium-pressure overflow valve; 49. Pilot overflow valve; 5. Pneumatic hydraulic pump; 51. Air circuit interface; 52. Inlet port; 53. Outlet port; 54. Second check valve; 55. First check valve; 6. Power supply; 7. Gas cylinder; 71. Gas cylinder valve; 8. Oil tank; 81. Outlet ball valve; 82. Y-type filter; 83. Outlet interface; 84. Return oil joint; 85. Filling port. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] First, the inventive concept of the present utility model lies in: matching the test pressure requirements of different hydraulic components through test circuits with different pressure ranges, precisely controlling the pressure of each test circuit through an instrument, and meeting the requirements of the number of test circuits required by different hydraulic components through the combination of test circuits.

[0025] Based on the above inventive concept, the basic scheme of a hydraulic component test and calibration device provided by the present utility model is as Figures 1 to 5 shown, which includes an oil tank 8 and a booster pump. An oil filling port 85 is provided on the oil tank 8 for external oil filling. The oil outlet joint 83 of the oil tank 8 is connected to the oil inlet 52 at the input end of the booster pump to provide hydraulic oil. An outlet ball valve 81 and a Y-type filter 82 can also be provided between the oil outlet joint 83 and the oil port 52 to filter the hydraulic oil, reducing the increase in impurities after long-term use; at the same time, the setting of the booster pump solves the problems of insufficient boosting pressure and insufficient boosting accuracy compared with manual pump boosting. A pressure output pipeline is provided at the output end of the booster pump, and the hydraulic oil is pumped into the pressure output pipeline through the oil outlet 53. The pressure output pipeline includes a high-pressure test pipeline, a medium-pressure test pipeline, and a pilot test pipeline that can be independently tested with each other. Connectors for testing are provided on the three test pipelines. Medium-pressure regulating valves 206 and pilot regulating valves 205 are respectively provided on the medium-pressure test pipeline and the pilot test pipeline to output different test pressure range values. At the same time, different pressures can also be applied to some special components with two different pressure output pipelines for testing, meeting the boosting test requirements of various hydraulic components and solving the problem of difficult boosting testing in the prior art.

[0026] In an embodiment, the high-pressure test pipeline, the medium-pressure test pipeline, and the pilot test pipeline are all directly connected to the output end of the booster pump. The medium-pressure regulating valve 206 and the pilot regulating valve 205 adjust the high pressure directly output by the booster pump to achieve the above technical purpose; in order to improve the pressure regulating efficiency and reduce the pressure regulating difficulty, in a preferred implementation, a high-pressure oil supply valve 216 is provided on the high-pressure test pipeline. The medium-pressure test pipeline is connected between the high-pressure oil supply valve 216 and the output end of the booster pump. The pilot test pipeline is connected to the medium-pressure test pipeline after the medium-pressure regulating valve 206, so that the pilot regulating valve 205 only needs to perform secondary adjustment on the pressure adjusted by the medium-pressure regulating valve 206, reducing the adjustment difficulty.

[0027] Furthermore, to avoid oil leakage during the testing process, in a preferred embodiment, the joints for testing on the high-pressure test pipeline, medium-pressure test pipeline, and pilot test pipeline are the high-pressure test joint 341, medium-pressure test joint 332, and pilot test joint 322 respectively, so as to optimize the joint part and avoid oil leakage; a high-pressure test oil supply valve 217, a medium-pressure test oil supply valve 213, and a pilot test oil supply valve 209 are respectively provided in front of the high-pressure test joint 341, medium-pressure test joint 332, and pilot test joint 322, thereby further improving the control of the joint part.

[0028] To strengthen the protection of the test pipelines, corresponding high-pressure overflow valves 47, medium-pressure overflow valves 48, and pilot overflow valves 49 are usually provided on the high-pressure test pipeline, medium-pressure test pipeline, and pilot test pipeline to avoid excessive pressure. Oil return pipelines are also respectively provided on the three pressure test pipelines to recycle the hydraulic oil to the fuel tank 8 through the oil return joint 84, and high-pressure pressure relief valves 218, medium-pressure pressure relief valves 214, and pilot pressure relief valves 210 are respectively provided on the oil return pipelines to control the oil return pipelines; furthermore, to reduce the pressure build-up time each time while protecting the pipelines, in a preferred embodiment, a high-pressure accumulator 41 is provided between the high-pressure oil supply valve 216 and the high-pressure test oil supply valve 217, a medium-pressure accumulator 42 is provided between the medium-pressure pressure regulating valve 206 and the medium-pressure test oil supply valve 213, and a pilot accumulator 43 is provided between the pilot pressure regulating valve 205 and the pilot test oil supply valve 209. The accumulator can absorb pressure when the pipeline pressure is too high and can also provide the accumulated pressure to protect the pipeline when the booster pump fails; the high-pressure accumulator 41, medium-pressure accumulator 42, and pilot accumulator 43 are also respectively provided with a high-pressure stop valve 44, a medium-pressure stop valve 45, and a pilot stop valve 46. Closing the corresponding stop valve can reduce the energy storage time for the next time and improve work efficiency; at the same time, high-pressure pressure gauges 215, medium-pressure pressure gauges 211, and pilot pressure gauges 207 are also respectively provided on the high-pressure test pipeline, medium-pressure test pipeline, and pilot test pipeline to facilitate the staff to monitor the pressure of the pipelines.

[0029] Due to the too large range of the mechanical pressure gauge, the problem of too low accuracy occurs when the test pressure is not high, and it often needs to be reworked because the accuracy cannot meet the requirements, which greatly affects work efficiency; therefore, in a preferred embodiment, a digital display pressure gauge 201 is also provided on the pilot test pipeline. The digital display pressure gauge 201 has higher accuracy and a more matching range, making up for the deficiency in accuracy of the ordinary pilot pressure gauge 207, improving work efficiency and reducing the number of reworks.

[0030] In one embodiment, an electric pump can be selected as the booster pump. However, to avoid potential safety hazards caused by the electric pump generating sparks, in a more preferred embodiment, a pneumatic hydraulic pump 5 is selected as the booster pump. The pneumatic hydraulic pump 5 is connected to a gas cylinder 7 filled with high-pressure compressed gas through a gas circuit interface 51. A gas cylinder valve 71 is provided on the gas cylinder 7. An air-operated hydraulic pump switch 204 and an air-operated pump pressure gauge 203 are also provided between the pneumatic hydraulic pump 5 and the gas cylinder 7 to achieve precise pressure control.

[0031] During actual use, to prevent the hydraulic oil output by the booster pump from flowing back, in a preferred embodiment, a first check valve 55 and a second check valve 54 are respectively provided between the high-pressure oil supply valve and the booster pump, and between the medium-pressure oil supply valve and the booster pump. By setting the first check valve 55 and the second check valve 54, the situation of hydraulic oil flowing back is effectively prevented, and the above technical problem is solved.

[0032] Furthermore, for a safe pressure test, in a preferred embodiment, the hydraulic component test and calibration device further includes a protective box 3. The joints of the high-pressure test pipeline, medium-pressure test pipeline, and pilot test pipeline for testing are installed on the inner side wall of the protective box 3. The pressure test is carried out inside the protective box 3, improving the safety of the test process; a fixed bracket 31 is also provided inside the protective box 3 to fix the component to be tested, and the protective box 3 is also provided with a protective cover 12 to further improve the safety factor.

[0033] To facilitate the staff to observe the internal test situation, in a preferred embodiment, four observation ports arranged in a cross shape are provided on the protective cover 12 to observe the internal situation of the protective box 3 with the naked eye; at the same time, a wire mesh 15 is also provided on the side of the observation port facing the inside of the protective box 3 to provide a certain protection effect while facilitating observation.

[0034] In actual engineering, a cabinet is usually set up to protect the pipelines and components inside the device; as Figure 1 shown, in a preferred embodiment, the hydraulic component test and calibration device has an external cabinet 1 that can accommodate internal components. Universal wheels 14 are provided at the bottom of the cabinet 1 for easy movement; a cabinet door 11 is provided on the cabinet 1 for convenient pre-installation and post-maintenance. The staff can operate the device through the control panel 2 on the cabinet 1; a lock 13 is provided at the part where the protective cover 12 is buckled with the cabinet 1, which can be kept buckled during work to improve the safety factor; an accumulator support 4 is also provided inside the cabinet 1 to install multiple accumulators. Necessarily, a 12V power module can also be provided on the cabinet 1. When the staff presses the power button 202 to start the power supply 6, the 12V power module can be used to test the solenoid valve.

[0035] During actual use, the staff member places the hydraulic component to be tested into the interior of the protective box body 3, selects a suitable test pipeline and connects the corresponding test joint, and closes the protective cover 12; starts the pneumatic hydraulic pump 5, opens the oil supply valve of the corresponding test pipeline and adjusts the pressure using the pressure regulating valve, then opens the corresponding test oil supply valve to conduct the test. After the test is completed, open the pressure relief valve on each pipeline to allow the hydraulic oil to return to the fuel tank 8 from the oil return joint 84 and wait for the next component to be tested.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 on the protection scope of the present invention.

[0037] The above is only the preferred embodiment of the present invention, and it is not intended to limit the present invention. The patent protection scope of the present invention is subject to the claims. All equivalent structural changes made by using the description and drawings of the present invention should be included in the protection scope of the present invention by the same token.

Claims

1. A hydraulic component testing and verification device, characterized in that: It includes an oil tank and a booster pump, the oil tank is connected to the input end of the booster pump to provide hydraulic oil, the output end of the booster pump is provided with a pressure output pipeline, the pressure output pipeline includes a high-pressure test pipeline, a medium-pressure test pipeline and a pilot test pipeline which can be tested independently of each other, the three test pipelines are respectively provided with connectors for testing, the medium-pressure test pipeline and the pilot test pipeline are respectively provided with a medium-pressure pressure regulating valve and a pilot pressure regulating valve to output different test pressure range values ​​to cope with components with different test pressure value requirements.

2. The hydraulic component testing and verification device according to claim 1, characterized in that: The high-pressure test pipeline is provided with a high-pressure oil supply valve, and the medium-pressure test pipeline is connected between the high-pressure oil supply valve and the output end of the booster pump; the pilot test pipeline is connected to the medium-pressure test pipeline after the medium-pressure regulating valve.

3. The hydraulic component testing and verification device according to claim 2, characterized in that: The joints used for testing of the high-pressure test pipeline, medium-pressure test pipeline and pilot test pipeline are respectively a high-pressure test joint, a medium-pressure test joint and a pilot test joint, and a high-pressure test oil supply valve, a medium-pressure test oil supply valve and a pilot test oil supply valve are correspondingly provided in front of the high-pressure test joint, the medium-pressure test joint and the pilot test joint.

4. The hydraulic component testing and verification device according to claim 3, characterized in that: A high-pressure accumulator is provided between the high-pressure oil supply valve and the high-pressure test oil supply valve, a medium-pressure accumulator is provided between the medium-pressure pressure regulating valve and the medium-pressure test oil supply valve, and a pilot accumulator is provided between the pilot pressure regulating valve and the pilot test oil supply valve.

5. The hydraulic component testing and verification device according to claim 1, characterized in that: The pilot test pipeline is also provided with a digital pressure gauge.

6. The hydraulic component testing and verification device according to claim 1, characterized in that: The booster pump is a pneumatic hydraulic pump.

7. The hydraulic component testing and verification device according to claim 2, characterized in that: A first one-way valve and a second one-way valve are respectively arranged between the high-pressure oil supply valve and the boosting pump, and between the medium-pressure regulating valve and the boosting pump to prevent the hydraulic oil from flowing back.

8. The hydraulic component testing and verification device according to claim 1, characterized in that: It also includes a protection box, the connectors of the high-pressure test pipeline, the medium-pressure test pipeline and the pilot test pipeline for testing are installed on the inner wall of the protection box, and the protection box is provided with a protection cover.

9. The hydraulic component testing and verification device according to claim 8, characterized in that: The protective cover is provided with an observation port, and a steel wire mesh is provided inside the observation port.

10. The hydraulic component testing and verification device according to claim 1, characterized in that: The hydraulic component testing and verification device has an external cabinet body which can accommodate internal components, and a universal wheel is arranged at the bottom of the cabinet body.

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