CN110375985B - Valve pressure test and hydrostatic life test combined device and use method thereof - Google Patents

Valve pressure test and hydrostatic life test combined device and use method thereof Download PDF

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Publication number
CN110375985B
CN110375985B CN201910793815.2A CN201910793815A CN110375985B CN 110375985 B CN110375985 B CN 110375985B CN 201910793815 A CN201910793815 A CN 201910793815A CN 110375985 B CN110375985 B CN 110375985B
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China
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hydraulic
box body
pressure
valve
test
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CN201910793815.2A
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CN110375985A (en
Inventor
崔卫东
李俊江
张平
赵晶
杨志刚
王家帮
张伟涛
徐鑫
卢毅
王超鹏
孟繁熙
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Boiler & Pressure Vessel Safety Inspection Institute Of Henan Province
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Boiler & Pressure Vessel Safety Inspection Institute Of Henan Province
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Priority to CN201910793815.2A priority Critical patent/CN110375985B/en
Publication of CN110375985A publication Critical patent/CN110375985A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • G01M13/003Machine valves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2876Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves

Abstract

The invention relates to a valve pressure test and hydrostatic life test combined device and a use method thereof, which can effectively solve the problems of time and labor saving and accurate detection of valve pressure and hydrostatic life test, wherein a driving device is arranged between a main box body and an auxiliary box body on one side of a water tank, an operation panel is arranged on the upper part of the main box body, a pressure gauge is arranged on the operation panel, a left hydraulic claw is arranged on the auxiliary box body through an auxiliary box body working disk, a right hydraulic claw is arranged on the main box body through a main box body working disk, a hydraulic system and an electric system are arranged on the main box body, and the hydraulic system and the electric system are connected with a USB socket of a control cabinet through an RS232 serial port bus; the invention has novel and unique structure, integrates the valve pressure test and the hydrostatic life test, is convenient to use, accurate in test, good in effect, labor-saving and time-saving, high in detection efficiency, safe in use and good in economic and social benefits.

Description

Valve pressure test and hydrostatic life test combined device and use method thereof
Technical Field
The invention relates to valve detection equipment, in particular to a valve pressure test and hydrostatic life test combined device and a use method thereof.
Background
The valve delivery inspection and type test is required to be used as a high-low pressure sealing test, a shell test, a high-low pressure upper sealing test and a hydrostatic life test, and the tests can be completed through a blind plate and a pressure testing pump, but the inspection efficiency is low, only a single item can be used, and the safety coefficient is not high. Although the existing equipment can finish all pressure test projects at one time, because the device does not have a guide rod, the installation of a large-caliber valve is limited, in addition, the equipment cannot adjust the hydraulic pressure of a valve clamping device, and whether the valve can be fixed on the equipment under higher pressure cannot be ensured, more importantly, the detection equipment cannot finish the hydrostatic life test of the valve at one time, and detection data cannot be collected and stored in time. The conventional method can only be used for checking on special equipment after the valve is disassembled, and besides the trouble and effort are not very reliable in checking data.
Disclosure of Invention
Aiming at the situation, the invention aims to overcome the defects of the prior art, and provides a valve pressure test and hydrostatic life test combined device and a use method thereof, which can effectively solve the problems of time saving, labor saving and accurate detection of valve pressure and hydrostatic life test.
The invention solves the technical scheme that the valve pressure test and hydrostatic life test combined device comprises a main box body, an auxiliary box body, a control cabinet and a water tank, wherein the water tank is arranged between the main box body and the auxiliary box body, a driving device is arranged between the main box body and the auxiliary box body at one side of the water tank, an operation panel is arranged at the upper part of the main box body, a pressure gauge is arranged on the operation panel, a left hydraulic claw is arranged on the auxiliary box body through an auxiliary box body working disc, a right hydraulic claw is arranged on the main box body through a main box body working disc, a hydraulic system and an electric system are arranged on the main box body, and the hydraulic system and the electric system are connected with a USB socket of the control cabinet through an RS232 serial port bus; the driving device consists of a bracket, a third hydraulic cylinder, a fourth hydraulic cylinder, a motor, a driving rod and a hydraulic pipe, wherein the third hydraulic cylinder and the fourth hydraulic cylinder are respectively arranged at two ends of the bracket, the end part of the bracket is provided with the motor through a support, the driving rod is arranged on an output shaft of the motor through a coupling, a pressure sensor (not labeled in the figure) is arranged on a working disc of the main box body, and the pressure sensor is connected with a pressure gauge and is connected with a USB socket of the control cabinet through an RS232 serial bus; the electric system is characterized in that a power supply is connected with a power supply end of a control cabinet, and the control cabinet is connected with a motor, an electronic switch of a secondary box body working disc driver, an electronic switch of a high-pressure water pump and an electronic switch of a low-pressure oil pump, an electronic switch of a hydraulic claw driver, an electronic switch of a driving device driver, an electronic switch of a secondary box body driver, a test medium control valve and a pressure relief control valve through an RS232 serial bus; the hydraulic system is characterized in that a low-pressure oil pump is connected with a first hydraulic cylinder, a second hydraulic cylinder, a third hydraulic cylinder, a fourth hydraulic cylinder, a fifth hydraulic cylinder and a sixth hydraulic cylinder through a first hydraulic branch pipe and a second hydraulic branch pipe of a hydraulic pipe respectively, the first hydraulic cylinder forms a driving structure of a left hydraulic claw, the second hydraulic cylinder forms a driving structure of a working disc of a secondary box body, the third hydraulic cylinder and the fourth hydraulic cylinder form a driving structure of a driving device which moves up and down, the fifth hydraulic cylinder forms a driving structure of a right hydraulic claw, and the sixth hydraulic cylinder forms a driving structure of the secondary box body.
The invention has novel and unique structure, integrates the valve pressure test and the hydrostatic life test, is convenient to use, accurate in test, good in effect, labor-saving and time-saving, high in detection efficiency, safe in use and good in economic and social benefits.
Drawings
Fig. 1 is a front view of the structure of the present invention.
Fig. 2 is a schematic structural diagram of a driving device according to the present invention.
Fig. 3 is a front view of the left and right hydraulic pawl structures of the present invention.
Fig. 4 is a block diagram of an electrical system of the present invention.
Fig. 5 is a diagram showing a power system structure of the sub-tank hydraulic gripper and the hydraulic cylinder of the present invention.
Fig. 6 is a block diagram of a hydraulic system of the present invention.
Detailed Description
The following describes the embodiments of the present invention in detail with reference to the drawings.
1-6, the combined device for valve pressure test and hydrostatic life test comprises a main box body, an auxiliary box body, a control cabinet and a water tank, wherein the water tank 10 is arranged between the main box body 8 and the auxiliary box body 1, a driving device 3 is arranged between the main box body 8 and the auxiliary box body 1 on one side of the water tank, an operation panel 5 is arranged on the upper part of the main box body 8, a pressure gauge 4 is arranged on the operation panel 5, a left hydraulic claw 2-2 is arranged on the auxiliary box body 1 through an auxiliary box body working disc 23, a right hydraulic claw 2-1 is arranged on the main box body 8 through a main box body working disc, a hydraulic system 9 and an electric system 7 are arranged on the main box body 8, and the hydraulic system and the electric system are connected with a USB socket of the control cabinet 6 through an RS232 serial port bus; the driving device 3 consists of a bracket 3-1, a third hydraulic cylinder 21-3, a fourth hydraulic cylinder 21-4, a motor 3-3, a driving rod 3-4 and a hydraulic pipe 3-2, wherein the third hydraulic cylinder 21-3 and the fourth hydraulic cylinder 21-4 are respectively arranged at two ends of the bracket 3-1, the end part of the bracket 3-1 is provided with the motor 3-3 through support, an output shaft of the motor 3-3 is provided with the driving rod 3-4 through a coupler, a working disc of the main box body 8 is provided with a pressure sensor (not labeled in the figure), and the pressure sensor is connected with the pressure gauge 4 and is connected with a USB socket of the control cabinet 6 through an RS232 serial bus; the electric system is characterized in that a power supply 11 is connected with a power supply end of a control cabinet 6, and the control cabinet 6 is connected with a motor 3-3, an electronic switch of a secondary box body working disc driver 17-1, an electronic switch of a high-pressure water pump 16 and a low-pressure oil pump 18 on an operation panel 5, an electronic switch of a hydraulic claw driver 17-2, an electronic switch of a driving device driver 17-3, an electronic switch of a secondary box body driver 17-4, a test medium control valve 19 and a pressure relief control valve 20 through an RS232 serial bus; the hydraulic system is characterized in that a low-pressure oil pump 18 is respectively connected with a first hydraulic cylinder 21-1, a second hydraulic cylinder 21-2, a third hydraulic cylinder 21-3, a fourth hydraulic cylinder 21-4, a fifth hydraulic cylinder 21-5 and a sixth hydraulic cylinder 21-6 through a first hydraulic branch pipe 3-2-1 and a second hydraulic branch pipe 3-2 of a hydraulic pipe 3-2, the first hydraulic cylinder 21-1 forms a driving structure 17-2-1 of a left hydraulic claw 2-2, the second hydraulic cylinder 21-2 forms a driving structure 17-1-1 of a working disc of a secondary box body, the third hydraulic cylinder 21-3 and the fourth hydraulic cylinder 21-4 form a driving structure 17-3-1 which moves up and down of the driving device 3, the fifth hydraulic cylinder 21-5 forms a driving structure 17-2-2 of the right hydraulic claw 2-1, and the sixth hydraulic cylinder 21-6 forms a driving structure 17-4-1 of the secondary box body 1.
In order to ensure the use effect and the use convenience, the control cabinet (PC) 6 is provided with an emergency alarm 12 through an alarm interface and a liquid crystal display 13, a keyboard 14 and a fan 15 through an RS232 serial bus;
the right hydraulic claw 2-1 and the left hydraulic claw 2-2 have the same structure and are composed of 3 hydraulic claws 2 uniformly distributed on a disc, and the structure is shown in figure 3;
the operation panel 5 is composed of an insulating bakelite plate, a power switch, a low-pressure oil pump switch, a left hydraulic claw and a right hydraulic claw which are arranged on the insulating bakelite plate and used for controlling a power supply, a backward, a clamping and loosening switch, a working disc upward and downward turnover switch, a driving device up-down movement and left-right movement control switch, a left hydraulic claw pressurizing control switch, a left water inlet air inlet valve switch, a left pressure release valve switch, a right pressure release valve switch, a high-pressure water pump pressurizing proportion control switch and an emergency shutdown control switch;
the hydraulic pipelines communicated with the right hydraulic claw 2-1 and the left hydraulic claw 2-2 are provided with electromagnetic valves, and the electromagnetic valves are connected with the electromagnetic valve control end (not labeled in the figure) of the controller through an RS232 serial bus.
As can be seen from the above structure, the present invention:
1. the device comprises a main box body, an auxiliary box body, a hydraulic system, an electric system, a driving device, an operation panel, a driving device control platform and a water tank.
2. The auxiliary box body is provided with a second hydraulic cylinder 21-2, a sixth hydraulic cylinder 21-6 and a working disc, and the working disc is provided with a first hydraulic cylinder 21-1 and hydraulic claws (three) which are mainly used for fixing valves. The second hydraulic cylinder 21-2 controls the turnover of the working disc, and the sixth hydraulic cylinder 21-6 controls the left and right movement of the auxiliary box body.
3. The main box body mainly comprises hydraulic claws (three), a fifth hydraulic cylinder 21-5, an operation panel and a pressure gauge.
4. The operation panel mainly comprises power switch control, oil pump switch control, left and right hydraulic claw advancing and retreating clamping and loosening control, working disc upward and downward overturning control, driving device up and down movement and left and right movement control, left and right hydraulic claw pressurizing control, left and right water (air) inlet valve control, left and right pressure relief valve control, air-driven high-pressure water pump pressurizing proportion control, emergency shutdown and the like.
For convenience of description, the auxiliary box hydraulic claw is called a left hydraulic claw, the main box hydraulic claw is called a right hydraulic claw, the first hydraulic cylinder 21-1 controls the left hydraulic claw to advance, retreat, clamp and relax, and the fifth hydraulic cylinder 21-5 controls the right hydraulic claw to advance, retreat, clamp and relax.
6. The driving device consists of a bracket, a motor, a third hydraulic cylinder 21-3, a fourth hydraulic cylinder 21-4, a driving rod, a power supply, a data control line and a hydraulic oil pipe, wherein test parameters are set through a control platform of the driving device, and the test parameters are transmitted to the driving device to automatically realize the opening and closing operation of the valve. Wherein, the motor controls the rotation of the driving rod, the third hydraulic cylinder 21-3 controls the support to move up and down, and the fourth hydraulic cylinder 21-4 controls the support to move left and right.
7. The PLC control cabinet is mainly used for setting, transmitting and collecting driving information. The control platform is mainly used for realizing automation of valve hydrostatic test, valve hydrostatic life test can be automatically completed by setting valve switching times, torque, pressure, speed and the like through the computer platform editor, and manual operation and interference are not needed.
8. The electric system mainly comprises a motor, an electromagnetic valve and a control line and is used for controlling the detection device to start and close, controlling the hydraulic claw, the driving device and the working disc hydraulic system to work through the opening and closing of the electromagnetic valve, specifically, the electric system controls the hydraulic system, and simultaneously, the opening and closing of the low-pressure oil pump, the opening and closing of a water valve on a water inlet pipeline and a water outlet pipeline of the high-pressure water pump, the opening and closing of a pressure relief valve, the automatic stopping, the emergency stopping and the power on-off of the driving device of the high-pressure water pump are realized.
9. The hydraulic system mainly comprises an oil pump, an electromagnetic valve and a hydraulic pipe and is used for controlling the driving device to lift and move left and right, the working disc to overturn up and down and move back and forth, the hydraulic claw to advance and retreat, the clamping and loosening and the like. That is, the hydraulic system is used for the left and right hydraulic claws to advance, retreat, clamp and relax, the working disc turns upwards and downwards, the driving device moves upwards, downwards and leftwards, the left and right hydraulic claws are pressurized, and the auxiliary box body advances and retreats. The pressure data measured by the test pressure sensor are transmitted to the pressure gauge 4 on one hand and the control cabinet on the other hand, and are displayed by a controller on the control cabinet.
When the hydraulic control device is used, the valve to be detected is arranged on a high-pressure pipeline arranged on a water tank, a left hydraulic claw and a right hydraulic claw grasp the valve to be detected, a driving rod of a driving device is propped against the valve (the position of the lower end of the driving rod is required to be adjusted according to the height of the valve, the driving rod is ensured to be tightly propped against the valve), the frequency, torque, pressure and speed of an electromagnetic valve and an electronic switch are set by a control cabinet, then all electric components are started by a controller, a low-pressure oil pump provides a power source for a hydraulic system of the combined device through a hydraulic pipe, and a hydraulic cylinder controls a bracket to move left and right and move up and down;
the hydraulic claw driver controls the left hydraulic claw and the right hydraulic claw to clamp, relax, advance and retreat;
the driving device driver controls the driving device bracket to move left and right and up and down (the heights of the valves are different, and the position of the driving rod is required to be adjusted);
the auxiliary box body driver controls the auxiliary box body to move left and right;
the motor controls the rotation of the driving rod;
the test medium control valve is used for selecting a test medium (water or gas);
the pressure release control valve is used for releasing test pressure (the highest pressure can reach 30 MPa), so that the personal safety of test personnel is ensured;
the air-driven high-pressure water pump group controls the test pressure boosting speed;
the motor is used for driving the rotation of the rod to realize automatic opening and closing of the valve;
the working disc driver of the auxiliary box body controls the turnover of the working disc.
After the test is started, the valve test data to be tested, including pressure data and hydrostatic life data, are simultaneously transmitted to the pressure gauge through the sensor and are simultaneously transmitted to the controller, and are displayed on the display of the controller, so that the valve pressure test and the hydrostatic life test can be quickly and conveniently realized at the same time.
The hydraulic claw is adopted to fix the valve, so that the clamping force can be freely adjusted, and the safety of inspection personnel is better ensured; in addition, the combined device can realize bidirectional simultaneous pressurization detection, and can complete all pressure test items and hydrostatic life tests only by being installed once during valve test, thereby greatly improving the test efficiency and safety. The hydrostatic life test of the valve can be automatically completed by controlling the platform editor through the driving device and setting the valve switching times, the torque and the like, and manual intervention operation is not needed.
The invention can be widely used for multi-caliber valve shell tests, upper sealing tests, sealing tests and hydrostatic life tests of valves. Through the adjustment of the test tool, the device can cover a metal valve with the nominal pressure less than or equal to 42MPa and the nominal size less than or equal to 300 mm. In addition, the device can adjust hydraulic equipment, sets suitable valve clamping pressure according to different calibers and different test pressure values, thereby effectively preventing the valve from falling off and ensuring the safety of staff. More advanced, the device is when carrying out hydrostatic test, and the valve is opened, is closed and all realizes automaticly, need not personnel on duty, and after life-span test was accomplished, drive arrangement automatic stop work, need not dismantle the valve and can carry out pressure test on the device, very big improvement detection efficiency, detection efficiency can improve more than 4 times, and the test is accurate moreover, and the error rate is less than 1%, and the rate of accuracy is more than 99%, does not discover valve and drops and unsafe accident, has good economic and social.

Claims (3)

1. The use method of the valve pressure test and hydrostatic life test combined device is characterized by comprising a main box body, an auxiliary box body, a control cabinet and a water tank, wherein the water tank (10) is arranged between the main box body (8) and the auxiliary box body (1), a driving device (3) is arranged between the main box body (8) and the auxiliary box body (1) on one side of the water tank, an operation panel (5) is arranged on the upper part of the main box body (8), a pressure gauge (4) is arranged on the operation panel (5), a left hydraulic claw (2-2) is arranged on the auxiliary box body (1) through an auxiliary box body working disc (23), a right hydraulic claw (2-1) is arranged on the main box body (8) through the main box body working disc, a hydraulic system (9) and an electric system (7) are arranged on the main box body (8), and the hydraulic system and the electric system are connected with a USB socket of the control cabinet (6) through an RS232 serial port bus; the driving device (3) is composed of a bracket (3-1), a third hydraulic cylinder (21-3), a fourth hydraulic cylinder (21-4), a motor (3-3), a driving rod (3-4) and a hydraulic pipe (3-2), wherein the third hydraulic cylinder (21-3) and the fourth hydraulic cylinder (21-4) are respectively arranged at two ends of the bracket (3-1), the motor (3-3) is arranged at the end part of the bracket (3-1) through a support, the driving rod (3-4) is arranged on an output shaft of the motor (3-3) through a coupler, a pressure sensor is arranged on a working disc of the main box body (8), and the pressure sensor is connected with the pressure gauge (4) and is connected with a USB socket of the control cabinet (6) through an RS232 serial bus; an emergency alarm (12) is arranged on the control cabinet (6) through an alarm interface, and a liquid crystal display screen (13), a keyboard (14) and a fan (15) are arranged on the control cabinet through an RS232 serial bus; the electric system is characterized in that a power supply (11) is connected with a power end of a control cabinet (6), and the control cabinet (6) is connected with a motor (3-3), an electronic switch of a secondary box body working disc driver (17-1), an electronic switch of a high-pressure water pump (16) and an electronic switch of a low-pressure oil pump (18) on an operation panel (5), an electronic switch of a hydraulic claw driver (17-2), an electronic switch of a driving device driver (17-3), an electronic switch of a secondary box body driver (17-4), a test medium control valve (19) and a pressure release control valve (20) through an RS232 serial port bus; the hydraulic system is characterized in that a low-pressure oil pump (18) is connected with a first hydraulic branch pipe (3-2-1) and a second hydraulic branch pipe (3-2-2) of a hydraulic pipe (3-2) through a first hydraulic cylinder (21-1), a second hydraulic cylinder (21-2), a third hydraulic cylinder (21-3), a fourth hydraulic cylinder (21-4), a fifth hydraulic cylinder (21-5) and a sixth hydraulic cylinder (21-6) respectively, the first hydraulic cylinder (21-1) forms a driving structure (17-2-1) of a left hydraulic claw (2-2), the second hydraulic cylinder (21-2) forms a driving structure (17-1-1) of an auxiliary box body working disc, the third hydraulic cylinder (21-3) and the fourth hydraulic cylinder (21-4) form a driving structure (17-3-1) which moves up and down of the driving device (3), the fifth hydraulic cylinder (21-5) forms a driving structure (17-2-2) of a right hydraulic claw (2-1), and the sixth hydraulic cylinder (21-6) forms a driving structure (17-1-1) of an auxiliary box body (1-4); the electromagnetic valve is arranged on a hydraulic pipeline which is communicated with the right hydraulic claw (2-1) and the left hydraulic claw (2-2), and is connected with the electromagnetic valve control end of the controller through an RS232 serial bus;
the use method comprises the steps that a valve to be detected is arranged on a high-pressure pipeline arranged on a water tank, a left hydraulic claw and a right hydraulic claw grasp the valve to be detected, a driving rod of a driving device is propped against the valve, the position of the lower end of the driving rod is regulated according to the height of the valve, the driving rod is guaranteed to be tightly propped against the valve, the number of times, torque, pressure and speed of an electromagnetic valve and an electronic switch are set by a control cabinet, then all electric components are started by a controller, a low-pressure oil pump provides a power source for a hydraulic system of the combined device through a hydraulic pipe, and a hydraulic cylinder controls a bracket to move left and right and up and down;
the hydraulic claw driver controls the left hydraulic claw and the right hydraulic claw to clamp, relax, advance and retreat;
the driving device driver controls the driving device bracket to move left and right and up and down, the heights of the valves are different, and the position of the driving rod is required to be adjusted;
the auxiliary box body driver controls the auxiliary box body to move left and right;
the motor controls the rotation of the driving rod;
the test medium control valve is used for selecting test medium water or gas;
the pressure release control valve is used for releasing test pressure, the highest pressure is 30MPa, and personal safety of test personnel is guaranteed;
the air-driven high-pressure water pump group controls the test pressure boosting speed;
the motor is used for driving the rotation of the rod to realize automatic opening and closing of the valve;
the working disc driver of the auxiliary box body controls the turnover of the working disc;
after the test is started, the valve test data to be tested, including pressure data and hydrostatic life data, are simultaneously transmitted to the pressure gauge through the sensor and are simultaneously transmitted to the controller, and are displayed on the display of the controller, so that the valve pressure test and the hydrostatic life test can be quickly and conveniently realized.
2. The method for using the combined device for the valve pressure test and the hydrostatic life test according to claim 1, wherein the right hydraulic claw (2-1) and the left hydraulic claw (2-2) have the same structure and are composed of 3 hydraulic claws (2) uniformly distributed on a disc.
3. The method according to claim 1, wherein the operation panel (5) comprises an insulating bakelite plate, a power switch for controlling a power supply, a low-pressure oil pump switch, a left-right hydraulic claw advancing switch, a retreating switch, a clamping switch, a releasing switch, a working disc upward and downward turning switch, a driving device up-down movement and left-right movement control switch, a left-right hydraulic claw pressurizing control switch, a left-right water inlet valve switch, a left-right pressure relief valve switch, a high-pressure water pump pressurizing proportion control switch and an emergency stop control switch.
CN201910793815.2A 2019-08-27 2019-08-27 Valve pressure test and hydrostatic life test combined device and use method thereof Active CN110375985B (en)

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CN201910793815.2A CN110375985B (en) 2019-08-27 2019-08-27 Valve pressure test and hydrostatic life test combined device and use method thereof

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Application Number Priority Date Filing Date Title
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CN110375985B true CN110375985B (en) 2024-03-22

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112373722B (en) * 2020-11-19 2021-07-27 中国航空油料有限责任公司山东分公司 Intelligent testing arrangement of aircraft refueling joint pressure

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KR20100007130U (en) * 2010-05-10 2010-07-08 이상득 The fluid valve test equipment
CN202126321U (en) * 2011-05-31 2012-01-25 上海增欣机电设备制造有限公司 Torque testing system of valve opening and closing performance testing machine
CN203132784U (en) * 2013-02-01 2013-08-14 长沙东宸机械科技有限公司 Submersible hydraulic valve testing machine
CN106840645A (en) * 2017-04-11 2017-06-13 兰州理工大学温州泵阀工程研究院 A kind of valve static pressure service life experiment system
CN107907316A (en) * 2017-11-15 2018-04-13 潘绍兵 A kind of valve pressure testing device
CN210427000U (en) * 2019-08-27 2020-04-28 河南省锅炉压力容器安全检测研究院 Valve pressure test and hydrostatic life test combined device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2727721Y (en) * 2004-06-30 2005-09-21 上海增欣机电设备制造有限公司 Automatic hydraulic valve experiment table
KR20100007130U (en) * 2010-05-10 2010-07-08 이상득 The fluid valve test equipment
CN202126321U (en) * 2011-05-31 2012-01-25 上海增欣机电设备制造有限公司 Torque testing system of valve opening and closing performance testing machine
CN203132784U (en) * 2013-02-01 2013-08-14 长沙东宸机械科技有限公司 Submersible hydraulic valve testing machine
CN106840645A (en) * 2017-04-11 2017-06-13 兰州理工大学温州泵阀工程研究院 A kind of valve static pressure service life experiment system
CN107907316A (en) * 2017-11-15 2018-04-13 潘绍兵 A kind of valve pressure testing device
CN210427000U (en) * 2019-08-27 2020-04-28 河南省锅炉压力容器安全检测研究院 Valve pressure test and hydrostatic life test combined device

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