CN111765145A - Electro-hydraulic high-voltage test system and test device - Google Patents
Electro-hydraulic high-voltage test system and test device Download PDFInfo
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- CN111765145A CN111765145A CN202010409860.6A CN202010409860A CN111765145A CN 111765145 A CN111765145 A CN 111765145A CN 202010409860 A CN202010409860 A CN 202010409860A CN 111765145 A CN111765145 A CN 111765145A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/027—Installations or systems with accumulators having accumulator charging devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/007—Simulation or modelling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
Abstract
The invention discloses an electro-hydraulic high-voltage test system and a test device, wherein the test device comprises an electro-hydraulic high-voltage test system and an electric control power cabinet which are fixed on a machine base, wherein the electro-hydraulic high-voltage test system comprises an electric test system and a hydraulic station control system; the electric testing system comprises an electric pump set and a panel valve group, wherein the electric pump set comprises a motor, a pump seat, a coupler and an electric pump, the panel valve group comprises the electric pump, a high-pressure overflow valve, a high-pressure pipe type check valve, a plurality of valves and the like which are connected through a high-pressure pipeline, and a tested part is connected to a high-pressure output interface of the panel valve group; the hydraulic station control system includes a plurality of components and a plurality of interfaces connected by connecting lines. The pressure testing device can control the testing pressure and simulate various testing conditions through the flat valve group, the high-pressure gauge, the pressure gauge and the energy accumulator pressure gauge, has the advantages of stable pressure maintaining, convenient pressure relief, reliability and durability, is simple in testing operation, can effectively reduce the pressure testing cost, and improves the pressure testing efficiency.
Description
Technical Field
The invention relates to the field of testing of hydraulic equipment, in particular to an electro-hydraulic high-pressure testing system and a testing device.
Background
In order to ensure the safe and reliable performance of hydraulic equipment, various pipelines, pressure containers, valve bodies and various connecting pieces need to be subjected to pressure resistance tests, and the pressure resistance tests can be used after the pressure resistance tests are qualified according to inspection standards. At present, a high-pressure needle valve with more pressure maintaining and pressure releasing is used, the service life is short, and a test medium contains more impurities in the test, so that the test is easy to damage, the test failure is caused, and certain influence can be brought to the safety of workers.
Therefore, the system and the device which are simple, safe and reliable, strong in pollution resistance, high in pressure maintaining precision and long in service life and can meet the pressure resistance, sealing performance, fatigue and bursting performance tests of various pipelines, high-pressure and low-pressure vessels and equipment are designed, and the system and the device are particularly important for the whole hydraulic pressure equipment testing field.
Disclosure of Invention
The invention provides an electro-hydraulic high-voltage testing system and a testing device aiming at the problems in the prior art, and the high-voltage testing system and the testing device have the advantages of stable pressure maintaining, convenient pressure relief, reliability and durability, are simple in testing operation, can effectively reduce the pressure measuring cost and improve the pressure measuring efficiency.
In order to achieve the purpose, the invention adopts the following technical measures:
an electro-hydraulic high-pressure test system comprises an electric test system and a hydraulic station control system, and is characterized in that the electric test system comprises an electric pump set and a flat valve set, the flat valve set comprises a high-pressure pipeline, and an electric pump, a high-pressure overflow valve, a high-pressure tube type check valve, a pump end unloading flat valve, a pressure maintaining flat valve, a pressure releasing flat valve, a manual pressure release valve, a water tank, a pressure gauge and a plurality of flat valve set interfaces which are respectively a high-pressure gauge interface connected with a pressure source, a pressure release port connected with a safe discharge area and a high-pressure output port connected with a tested piece are sequentially connected with the high-pressure pipeline, and the tested piece is connected with the high-pressure output; the hydraulic station control system comprises an overflow valve, a high-pressure filter, an energy accumulator, a pressure reducing valve, a gear pump, a filter, a manual throttle valve, an electric reversing magnetic valve group, an oil tank and a plurality of hydraulic station control interfaces which are connected through a connecting pipeline, wherein the plurality of hydraulic station control interfaces are respectively a switch control interface for connecting a pump end unloading flat valve, a switch control interface for connecting a pressure maintaining flat valve and a switch control interface for connecting a pressure relief flat valve.
The electric pump set comprises an electric motor, a pump seat, a coupler and an electric pump, wherein the electric motor is in butt joint with a spigot of the pump seat, the coupler is connected with a rotating shaft of the electric motor, the other end of the electric motor in butt joint with the spigot of the pump seat is connected with the electric pump, and the other end of the coupler, which is connected with the rotating shaft of the electric motor, is connected with a rotating shaft of the electric pump.
Preferably, the plate valve bank further comprises an electromagnetic directional valve bank, a pump end unloading plate valve and a pressure maintaining plate valve and a pressure relief plate valve which are connected in parallel, the pump end unloading plate valve is connected with a first directional valve of the electromagnetic directional valve bank, the pressure maintaining plate valve is connected with a second directional valve of the electromagnetic directional valve bank, the pressure relief plate valve is connected with a third directional valve of the electromagnetic directional valve bank, the pressure maintaining plate valve is connected with the pressure relief plate valve, the other end of the pressure maintaining plate valve is connected with the high-pressure output interface through a connecting pipeline, the other end of the pressure relief plate valve is connected with the pressure relief port through a connecting pipeline, and a high-pressure gauge is connected to the connecting pipeline between the second pressure maintaining plate valve and the high-pressure output interface.
Preferably, the high-pressure output interface pipeline is connected with the connecting pipeline of the pressure relief port through a manual pressure relief valve, and the manual pressure relief valve is communicated with the pressure maintaining flat valve and the pressure relief flat valve.
Preferably, a pressure gauge and a local pressure relief pipeline are connected to a connecting pipeline between the pressure reducing valve and the electromagnetic directional valve set, the local pressure relief pipeline comprises a manual throttle valve, the manual throttle valve is connected with an oil relief end, and the oil relief end is used for releasing the hydraulic pressure of a flat valve set on the electric test system and adjusting the hydraulic pressure of the electric test system.
Preferably, an accumulator pressure gauge for detecting the pressure of the accumulator is arranged on one side of the accumulator.
Preferably, a check valve is connected between the gear pump and the accumulator.
The electro-hydraulic high-voltage testing device comprises a rack, an electro-hydraulic high-voltage testing system and an electric control power cabinet, wherein the electro-hydraulic high-voltage testing system and the electric control power cabinet are both installed on the rack.
Preferably, the rack is of a skid-mounted base structure, and two sides of the rack are provided with a forklift hole and a lifting hole.
The electro-hydraulic high-voltage testing system is the electro-hydraulic high-voltage testing system. Preferably, the electric testing system of the electro-hydraulic high-pressure testing system is provided with a high-strength anti-seismic water tank, and the water tank is provided with a water discharge port, a liquid level meter, an air filter, an observation hole and a cleaning port.
Preferably, the electric control power cabinet is provided with a pressure control button, a high-pressure control button, an emergency switch, a power indicator, a motor operation indicator and a mode conversion switch, wherein the pressure control button is connected with the electric test system and the hydraulic station control system.
The invention has the beneficial effects that:
1. the electro-hydraulic high-pressure testing system has the advantages of simplicity in use, safety, reliability and the like, can meet the pressure resistance and sealing performance tests, fatigue, explosion and other performance tests of various pipelines, high-pressure and low-pressure vessels and equipment by arranging the flat valve group, the energy accumulator, the overflow valve and the gear pump, is strong in pollution resistance, high in pressure maintaining precision and long in service life, improves the universality of the hydraulic testing system, and further improves the detection efficiency and quality.
2. The invention can control the testing pressure and simulate various testing conditions by arranging the flat valve group, the high-pressure gauge, the pressure gauge and the energy accumulator pressure gauge.
3. The invention simplifies the steps and functional parts of the traditional pressure test, has high test efficiency and simple structure, is convenient for manufacturing the high-pressure test device, and reduces the manufacturing cost of the high-pressure test device.
Drawings
FIG. 1 is a schematic diagram of an electro-hydrodynamic high-voltage test system of the present invention;
FIG. 2 is a perspective view of the electro-hydrodynamic high-voltage testing device of the present invention;
FIG. 3 is a front view of the electro-hydrodynamic high-pressure test device of the present invention;
FIG. 4 is a top view of the electro-hydrodynamic high-voltage testing device of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the embodiment, as shown in fig. 1, an electro-hydraulic high-pressure test system includes an electric test system and a hydraulic station control system.
The electric test system comprises an electric pump set and a flat valve group. The electric pump group comprises an electric motor 4a, a pump seat 20, a coupling 21 and an electric pump 3; the plate valve group comprises an electric pump 3, a high-pressure overflow valve 5, a high-pressure tube type check valve 7a, a pump end unloading plate valve 6, a pressure maintaining plate valve 8, a pressure relief plate valve 9, a manual pressure relief valve 12, a water tank 1a, a high-pressure gauge 10 and a plurality of interfaces which are connected through a high-pressure pipeline, wherein the plurality of interfaces are respectively a high-pressure gauge interface connected with a pressure source, a pressure relief port 11b connected with a safe discharge area and a high-pressure output port 11a connected with a tested piece, and the tested piece is connected into the high-pressure output interface 11 a.
The hydraulic station control system comprises an overflow valve 18, a high-pressure filter 2b, an energy accumulator 14, a pressure reducing valve 15, a gear pump 13, a filter 2b, a manual throttle valve 17, an electric reversing magnetic valve group 19, an oil tank 1b and a plurality of interfaces which are connected through a connecting pipeline, wherein the plurality of interfaces are respectively a switch control interface for connecting the pump end unloading flat valve 6, a switch control interface for connecting the pressure maintaining flat valve 8 and a switch control interface for connecting the pressure relief flat valve 9.
Further, the hydraulic station control system also comprises a motor 4b connected with the gear pump 13, and the motor 4b is connected with the energy accumulator 14 through an electric control power cabinet 22 and a high-pressure filter 2 b.
The working pressure of the flat valve group is 120MPa-150MPa, and the working pressure of the energy accumulator 14 is 0MPa-24 MPa.
In this embodiment, when the switch of the hydraulic station control system is turned to the "automatic" mode, the distribution machine 4b may be turned on at a pressure lower than 15MPa, and stopped at a pressure increased to 21MPa, and when the switch of the hydraulic station control system is turned to the "manual" mode, and the pressure on the connection pipe is as high as 23.1MPa, the overflow valve 18 may overflow the protection system to keep the pressure within 23.1MPa, which means that the motor 4b needs to be manually stopped.
The flat valve group comprises an electromagnetic directional valve group 19, a pump end unloading flat valve 6, and a pressure maintaining flat valve 8 and a pressure relief flat valve 9 which are connected in parallel, wherein the pump end unloading flat valve 6 is connected with a first reversing valve 19a of the electromagnetic directional valve group 19, the pressure maintaining flat valve 8 is connected with a second reversing valve 19b of the electromagnetic directional valve group 19, the pressure relief flat valve 9 is connected with a third reversing valve 19c of the electromagnetic directional valve group 19, the pressure maintaining flat valve 8 is connected with the pressure relief flat valve 9 in parallel, the other end of the pressure maintaining flat valve 8 is connected with a high-pressure output interface 11a through a connecting pipeline, the other end of the pressure relief flat valve 9 is connected with a pressure relief port 11b through a connecting pipeline, and the connecting pipeline between the pressure maintaining flat valve 8 and the high-pressure output interface is connected with a high. In this embodiment, the working pressure of the flat valve group is 140MPa, wherein the pressure relief flat valve 9 is used for relieving the pressure of the system and the tested piece, and the pressure maintaining flat valve 8 is used for maintaining the pressure of the system driven by the tested piece, so that the pressure control range in the electro-hydraulic high-pressure testing system can be enlarged, and various testing conditions can be simulated.
The high-pressure gauge 10 is used for detecting and controlling a high-pressure value of the flat valve group, in this implementation, the working pressure of the flat valve group is 140MPa, and the pressure range value of the high-pressure gauge 10 is 0-160 MPa. The high pressure output pipeline is connected with the connecting pipeline of the pressure relief port 11b through the manual pressure relief valve 12, the manual pressure relief valve 12 and the pressure relief flat valve 9 are in a parallel connection relation, and when the automatic pressure relief cannot be completed due to the problems of faults, power failure or hydraulic station faults and the like of the pressure relief flat valve 9 in the high-pressure testing system, the system pressure can be relieved through the manual pressure relief valve 12.
In order to improve the pressure control precision in the electro-hydraulic high-pressure test system, an energy accumulator pressure gauge 16a for detecting the pressure of the energy accumulator 14 is arranged on one side of the energy accumulator 14, and the pressure value range of the energy accumulator pressure gauge 16a is 0-40 MPa; the hydraulic control system is characterized in that a pressure gauge 16b and a local pressure relief pipeline are connected to a connecting pipeline between the pressure reducing valve 15 and the electromagnetic directional valve set, the local pressure relief pipeline comprises a manual throttle valve 17, the manual throttle valve 17 is connected with an oil relief end, the oil relief end is used for releasing hydraulic pressure of the connecting pipeline of the electric test system and adjusting the hydraulic pressure of the electric test system, a low-pressure control manifold is formed among the pressure reducing valve 15, the high-pressure filter 2b, the energy accumulator 14, the overflow valve 18, the gear pump 13, the manual throttle valve 17 and the oil tank b1, in the embodiment, a switch of the hydraulic station control system is in an 'automatic' mode, system hydraulic pressure in the low-pressure control manifold is not higher than 21MPa, and in a 'manual' mode, the hydraulic pressure is not higher than 23.1 MPa.
Furthermore, a check valve 7b is connected between the gear pump 13 and the energy accumulator 14, so that the backflow of hydraulic oil can be avoided, and the test pressure of the electro-hydraulic high-pressure test system is kept stable.
The working principle of the hydraulic station control system is as follows:
when the power supply indicating switch is turned to an 'automatic' mode, and a hydraulic station control system is below 15MPa, the power distribution machine 4b is automatically turned on, the power distribution machine 4b is controlled to be started through the pressure transmission switch 25b, hydraulic oil enters the gear pump 13 from the oil tank 1b through the filter 2c, the hydraulic oil is pressurized to the energy accumulator 14 through the check valve 7b and the overflow valve 18 under the drive of the gear pump 13, when the pressure of the hydraulic station control system is up to 21MPa, the motor 4b stops, and the control pressure can be displayed on the pressure gauge 16 a; when a motor power switch is turned to a manual mode, the motor 4b always operates, and when the pressure of a hydraulic station control system reaches 23.1MPa, the overflow valve 18 overflows the protection system to keep the pressure within 23.1MPa, so that the motor 4b needs to be manually stopped, and the pressure of the energy accumulator 14 is displayed on an energy accumulator pressure gauge 16 a; when a pump end unloading flat valve switch (a pressure maintaining flat valve switch or a pressure relief flat valve) is operated, hydraulic oil enters a first electromagnetic directional valve 19a (a second electromagnetic directional valve 19b or a third electromagnetic directional valve 19 c) through a pressure reducing valve 15 (factory setting is 7 MPa), and the pump end unloading flat valve 6 (a pressure maintaining flat valve 8 or a pressure relief flat valve 9) is controlled to be switched through the reversing action of the first electromagnetic directional valve 19a (the second electromagnetic directional valve 19b or the third electromagnetic directional valve 19 c); when the hydraulic station is serviced or deactivated, the system pressure is relieved by means of a manual throttle 17 on the hydraulic station.
The working principle of the electric test system is as follows:
during testing, a tested piece is connected into a high-pressure output interface 11a, a pressure relief port 11b is connected into a safe discharge area, when an electric pump set absorbs water from a water tank 1a and enters an electric pump 3 through a filter 2a to be converted into a high-pressure source to be output, a pressure maintaining flat valve 8 is opened, a pump end unloading flat valve 6, a pressure relief flat valve 9 and a manual pressure relief valve 12 are closed, and water pressure enters the tested piece through a high-pressure tube type one-way valve 7a and the pressure maintaining flat valve 8; and when the pressure reaches the test pressure, opening the pump end unloading flat valve 6, closing the pressure maintaining flat valve 8 and stopping the operation of the electric pump set, and after the test is finished, opening the pressure relief flat valve 9, opening the pressure maintaining flat valve 8 and unloading the pressure of the tested piece to finish the test operation. When automatic pressure relief cannot be completed due to faults, power failure, hydraulic station faults and the like of the pressure relief flat valve 9 in the test, system pressure can be relieved through the manual pressure relief valve 12.
Referring to fig. 2-4, an electro-hydraulic high-voltage testing device comprises a frame 23, the electro-hydraulic high-voltage testing system and an electric control power cabinet 22.
The frame 23 is of a skid-mounted base structure, fork truck holes and lifting holes are formed in two sides of the frame 23, and lifting and maintenance are convenient.
Specifically, the electric control power cabinet 22, an electric test system of the electro-hydraulic high-voltage test system, and a hydraulic station control system are fixed on the frame 23.
Automatically controlled power cabinet 22 is equipped with the connection pressure control button, high-pressure control button, emergency switch, power indicator, motor operation pilot lamp and the mode change over switch of electronic test system and hydraulic pressure station control system can carry out starting, scram, stopping etc. multiple operations of high-pressure testing arrangement, simple operation through pressure control button and the switch on automatically controlled power cabinet 22.
More preferably, electro-hydraulic high-pressure test system still is provided with high strength shock-resistant water tank 1a, is equipped with oil discharge outlet, level gauge, air cleaner, observation hole and washing mouth on the water tank 1a, makes things convenient for the operator to observe, washs water tank 1a, reduces the particle impurity in the water tank 1a air to avoid damaging electro-hydraulic high-pressure test system's part, cause the test to become invalid, bring the threat for workman's safety.
The invention has scientific and reasonable design, has the advantages of simple use, safety, reliability and the like, can meet the pressure resistance and sealing performance tests, fatigue, explosion and other performance tests of various pipelines, high-pressure and low-pressure vessels and equipment by arranging the flat valve group, the energy accumulator, the overflow valve, the gear pump and the like, has the pressure maintaining precision reaching the API standard required by the petroleum industry, improves the universality of a water hydraulic pressure testing system, further improves the detection efficiency and quality, simplifies the steps and functional components of the traditional pressure test, has high testing efficiency and simple structure, is convenient for manufacturing a high-pressure testing device, and reduces the manufacturing cost of the high-pressure testing device.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (12)
1. An electro-hydraulic high-pressure test system comprises an electric test system and a hydraulic station control system, and is characterized in that the electric test system comprises an electric pump set and a flat valve set, the flat valve set comprises an electric pump, a high-pressure overflow valve, a high-pressure pipe type check valve, a pump end unloading flat valve, a pressure maintaining flat valve, a pressure releasing flat valve, a manual pressure release valve, a water tank, a pressure gauge and a plurality of flat valve set interfaces which are sequentially connected through a high-pressure pipeline, the plurality of flat valve set interfaces comprise a high-pressure gauge interface connected with a pressure source, a pressure release port connected with a safe discharge area and a high-pressure output port connected with a tested piece, and the tested piece is connected to the high-pressure; the hydraulic station control system comprises an overflow valve, a high-pressure filter, an energy accumulator, a pressure reducing valve, a gear pump, a filter, a manual throttle valve, an electric reversing magnetic valve group, an oil tank and a plurality of hydraulic station control interfaces which are connected through a connecting pipeline, wherein the plurality of hydraulic station control interfaces comprise an on-off control interface connected with a pump end unloading flat valve, an on-off control connected with a pressure maintaining flat valve and an on-off control interface connected with a pressure relief flat valve.
2. The electro-hydraulic high-voltage testing system according to claim 1, wherein the electric pump group comprises an electric motor, a pump base, a coupler and an electric pump, wherein the electric motor is butted with a spigot of the pump base, the coupler is connected with a rotating shaft of the electric motor, the other end of the electric motor, which is butted with the spigot of the pump base, is connected with the electric pump, and the other end of the coupler, which is connected with the rotating shaft of the electric motor, is connected with a rotating shaft of the electric pump.
3. The electro-hydraulic high-pressure test system according to claim 1, wherein the plate valve bank comprises an electromagnetic directional valve bank, a pump-end unloading plate valve, and a pressure-maintaining plate valve and a pressure-releasing plate valve which are connected in parallel, the pump-end unloading plate valve is connected through a first reversing valve of the electromagnetic directional valve bank, the pressure-maintaining plate valve is connected through a second reversing valve of the electromagnetic directional valve bank, the pressure-releasing plate valve is connected through a third reversing valve of the electromagnetic directional valve bank, the pressure-maintaining plate valve is connected with the pressure-releasing plate valve, the other end of the pressure-maintaining plate valve is connected with the high-pressure output interface through a connecting pipeline, the other end of the pressure-releasing plate valve is connected with the pressure-releasing port through a connecting pipeline, and a high-pressure gauge is connected to the connecting pipeline between the pressure-maintaining plate valve.
4. The electro-hydraulic high-pressure test system according to claim 3, wherein the high-pressure output interface pipeline is connected with the connecting pipeline of the pressure relief port through a manual pressure relief valve, and the manual pressure relief valve is communicated with the pressure maintaining flat valve and the pressure relief flat valve.
5. The electro-hydraulic high-pressure test system according to claim 1, wherein a pressure gauge and a local pressure relief pipeline are connected to a connecting pipeline between the pressure reducing valve and the electromagnetic directional valve bank, the local pressure relief pipeline comprises a manual throttle valve, the manual throttle valve is connected with an oil relief end, and the oil relief end is used for releasing hydraulic pressure of a flat plate valve bank on the electric test system and adjusting the hydraulic pressure of the electric test system.
6. The electro-hydraulic high pressure test system of claim 1, wherein an accumulator pressure gauge is provided at one side of the accumulator for detecting accumulator pressure.
7. The electro-hydraulic high pressure testing system of claim 1, wherein a check valve is connected between the gear pump and the accumulator.
8. An electro-hydraulic high-voltage testing device is characterized in that: the electro-hydraulic high-voltage testing system and the electric control power cabinet are mounted on the rack.
9. The electro-hydraulic high-voltage testing device according to claim 8, wherein the electro-hydraulic high-voltage testing system is the electro-hydraulic high-voltage testing system according to any one of claims 1 to 7.
10. The electro-hydraulic high-voltage testing device as claimed in claim 8, wherein the frame is of a skid-mounted base structure, and the two sides of the frame are provided with forklift holes and lifting holes.
11. The electro-hydraulic high pressure testing device according to claim 1, wherein the electro-hydraulic testing system is provided with a shock-resistant water tank, and the water tank is provided with a water discharge port, a liquid level meter, an air filter, an observation hole and a cleaning port.
12. The electro-hydraulic high-voltage test system and device according to claim 8, wherein the electric control power cabinet is provided with a pressure control button, a high-voltage pressure control button, an emergency switch, a power indicator, a motor operation indicator and a mode conversion switch for connecting the electric test system and the hydraulic station control system.
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| CN202010409860.6A CN111765145A (en) | 2020-05-15 | 2020-05-15 | Electro-hydraulic high-voltage test system and test device |
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| CN202010409860.6A CN111765145A (en) | 2020-05-15 | 2020-05-15 | Electro-hydraulic high-voltage test system and test device |
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| CN112798427A (en) * | 2021-01-22 | 2021-05-14 | 东方电气集团科学技术研究院有限公司 | Automatic pressure testing system for water pressure of coiled pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798427A (en) * | 2021-01-22 | 2021-05-14 | 东方电气集团科学技术研究院有限公司 | Automatic pressure testing system for water pressure of coiled pipe |
| CN113638937A (en) * | 2021-06-02 | 2021-11-12 | 北京精密机电控制设备研究所 | Automatic test system of hydraulic source |
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