CN110617959A - Detection apparatus for simulation deep sea environment reciprocating motion sealing washer sealing performance - Google Patents
Detection apparatus for simulation deep sea environment reciprocating motion sealing washer sealing performance Download PDFInfo
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- CN110617959A CN110617959A CN201910990854.1A CN201910990854A CN110617959A CN 110617959 A CN110617959 A CN 110617959A CN 201910990854 A CN201910990854 A CN 201910990854A CN 110617959 A CN110617959 A CN 110617959A
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/005—Sealing rings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Examining Or Testing Airtightness (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a detection device for simulating the sealing performance of a reciprocating motion sealing ring in a deep sea environment, which comprises a high-pressure cylinder and a controller, wherein the high-pressure cylinder is arranged in the high-pressure cylinder; a piston is arranged in the high-pressure cylinder, a group of test sealing rings are symmetrically arranged at two ends of the piston, a piston rod of the hydraulic cylinder extends into the high-pressure cylinder and is fixedly connected with the piston, and a displacement sensor is fixed on the piston rod; the hydraulic device A is connected with the hydraulic cylinder; the water leakage sensors are symmetrically distributed at the bottoms of two ends of the high-pressure cylinder, the middle position of the high-pressure cylinder is connected with the hydraulic device B, and the high-pressure pipe is provided with a pressure sensor, a temperature sensor, an energy accumulator and a thermometer; the displacement sensor, the water leakage sensor, the pressure sensor and the temperature sensor are all connected with a controller, and the controller is connected with the hydraulic device A and the hydraulic device B. According to the invention, different environments are provided for the high-pressure cylinder through the hydraulic device B, the hydraulic device A drives the piston rod in the hydraulic cylinder to enable the piston in the high-pressure cylinder to reciprocate, and the sealing performance of the sealing ring in different environments is detected through the water leakage sensor in the reciprocating motion process of the piston.
Description
Technical Field
The invention relates to the field of ocean engineering, in particular to a detection device for simulating the sealing performance of a reciprocating motion sealing ring in a deep sea environment.
Background
The ocean contains abundant resources such as oil gas, organisms, metal minerals and the like, and deep sea equipment plays a vital role in the development process of the resources. In the process of developing and utilizing deep sea biological resources, deep sea high pressure sealing is an important basis for breaking through a deep sea high pressure barrier to obtain the deep sea biological resources, and particularly, a control system based on electromagnetism has more strict requirements on a sealing environment. With the development of deep sea equipment technology in China, the requirement on the sealing performance of the sealing element is higher and higher. At present, the sealing performance detection device of the sealing ring is basically limited to analysis under a single environment, and few devices are used for detecting the sealing performance of the sealing ring under a simulated deep sea environment. In view of the special operation environment of deep sea equipment, in the deep sea operation process, once the sealing performance of the system sealing structure fails, the operation cannot be completed, and potential safety hazards may be caused. Therefore, a detection device for simulating the sealing performance of the reciprocating motion sealing ring in the deep sea environment is urgently needed to be developed.
Disclosure of Invention
In order to solve the technical problems, the invention provides the detection device for simulating the sealing performance of the deep sea environment reciprocating motion sealing ring, which is simple in structure, high in automation degree and high in control precision.
The technical scheme for solving the problems is as follows: a detection device for simulating the sealing performance of a reciprocating motion sealing ring in a deep sea environment comprises a hydraulic device A, a hydraulic device B, a high-pressure cylinder, a piston, a sealing ring, a displacement sensor, a pressure sensor, a temperature sensor, a water leakage sensor and a controller; the outer layer of the high-pressure cylinder is provided with a heat insulation layer I, a piston is arranged in the high-pressure cylinder, the piston is H-shaped and can reciprocate in the high-pressure cylinder, a group of test sealing rings are symmetrically arranged at two ends of the piston, the piston forms a sealing structure with the inner cavity of the high-pressure cylinder through the test sealing rings, a piston rod of the hydraulic cylinder extends into the high-pressure cylinder and is fixedly connected with one end of the piston, and the displacement sensor is fixed on the piston rod; the hydraulic device A is connected with a hydraulic cylinder; the water leakage sensors are symmetrically distributed at the bottom positions of two ends of the high-pressure cylinder and used for detecting whether the sealing ring leaks, the top and the bottom of the middle position of the high-pressure cylinder are respectively provided with a high-pressure pipe interface, the high-pressure pipe interface at the top of the high-pressure cylinder is connected with the hydraulic device B through a high-pressure pipe I, the high-pressure pipe interface at the bottom of the high-pressure cylinder is connected with the hydraulic device B through a high-pressure pipe II, and the high-pressure pipe I and the high-pressure pipe II are respectively provided with a pressure sensor, a temperature sensor; and the signal output ends of the displacement sensor, the water leakage sensor, the pressure sensor and the temperature sensor are all connected with a controller, and the controller is connected with a hydraulic device A and a hydraulic device B.
Above-mentioned detection device for simulating deep sea environment reciprocating motion sealing washer sealing performance, hydraulic means A includes oil tank, electromagnetic directional valve, check valve I, overflow valve I, manometer I, proportional speed control valve, hydraulic pump I, motor I and filter I, the oil tank links to each other with the oil inlet of electromagnetic directional valve behind filter I, hydraulic pump I, check valve I, the proportional speed control valve in proper order, motor I links to each other with hydraulic pump I, two oil-outs of electromagnetic directional valve all link to each other with the pneumatic cylinder, the control end of electromagnetic directional valve, proportional speed control valve links to each other with the controller, the oil return opening of electromagnetic directional valve connects to the oil tank, be equipped with overflow valve I and manometer I between check valve I and the proportional speed control valve, the oil-out port of overflow valve I connects to the oil tank, the signal output part of manometer I links to each.
The detection device for simulating the sealing performance of the deep sea environment reciprocating motion sealing ring comprises a hydraulic device B, a water tank, a check valve II, an overflow valve II, a pressure gauge II, a proportional pressure regulating valve, a hydraulic pump II, a motor II, a filter II and a cold and hot water unit, wherein a heat insulation layer II is arranged on the outer layer of the water tank; and an overflow valve II is arranged between the check valve II and the proportional pressure regulating valve, and a water outlet of the overflow valve II is connected to the water tank.
According to the detection device for simulating the sealing performance of the deep sea environment reciprocating motion sealing ring, one end of the high-pressure pipe II is connected with a high-pressure pipe interface at the bottom of the high-pressure cylinder, the other end of the high-pressure pipe II is divided into a first branch and a third branch, the first branch is connected with a water outlet of the proportional pressure regulating valve after passing through the first stop valve, and the third branch is connected to the water tank after passing through the third stop valve; one end of the high-pressure pipe I is connected with a high-pressure pipe interface at the top of the high-pressure barrel, the other end of the high-pressure pipe I is divided into a second branch and a fourth branch, the second branch is connected with a water outlet of the proportional pressure regulating valve after passing through a second stop valve, and the fourth branch is connected to the water tank after passing through a fourth stop valve.
The detection device for simulating the sealing performance of the deep sea environment reciprocating motion sealing ring further comprises a display circuit, and the display circuit is connected with the controller.
The detection device for simulating the sealing performance of the deep sea environment reciprocating motion sealing ring further comprises a reset circuit, and the reset circuit is connected with the controller.
The detection device for simulating the sealing performance of the deep sea environment reciprocating motion sealing ring further comprises a fault reset circuit, and the fault reset circuit is connected with the controller.
According to the detection device for simulating the sealing performance of the deep sea environment reciprocating motion sealing ring, pressure fluctuation generated in the reciprocating motion process of the piston in the high-pressure cylinder is provided by the energy accumulator.
According to the detection device for simulating the sealing performance of the reciprocating motion sealing ring in the deep sea environment, the pressure regulating range of the proportional pressure regulating valve is 0 ~ 110MPa, and the temperature regulating range of the cold and hot water unit is 2 ~ 100 ℃.
The invention has the beneficial effects that the device is provided with a controller, a displacement sensor, a pressure sensor, a temperature sensor and a water leakage sensor, wherein the displacement sensor, the pressure sensor, the temperature sensor and the water leakage sensor respectively monitor the reciprocating displacement of the hydraulic cylinder, the pressure in the high-pressure cylinder, the temperature in the high-pressure cylinder and the leakage condition in the high-pressure cylinder in real time, the controller receives signals collected by the displacement sensor, the pressure sensor, the temperature sensor and the water leakage sensor and outputs corresponding control signals to a proportional speed regulating valve for controlling the reciprocating speed of the hydraulic cylinder, and the reciprocating speed of the piston is controlled by controlling the reciprocating speed of the hydraulic cylinder.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a block diagram of the circuit structure of the present invention.
Fig. 3 is a circuit diagram of the controller of the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1 and 2, a detection device for simulating the sealing performance of a reciprocating motion sealing ring in a deep sea environment comprises a hydraulic device a, a hydraulic device B, a high-pressure cylinder 14, a piston 16, a sealing ring, a displacement sensor 13, a pressure sensor 26, a temperature sensor 15, a water leakage sensor, a controller, a display circuit, a reset circuit, a fault reset circuit, a power supply circuit and a hydraulic cylinder 10; the power supply circuit provides a working power supply for the whole detection device; the outer layer of the high-pressure cylinder 14 is provided with an insulating layer I18, the left side and the right side of the high-pressure cylinder 14 are provided with exhaust ports, a piston 16 is arranged in the high-pressure cylinder 14, the piston 16 is H-shaped, the piston 16 can reciprocate in the high-pressure cylinder 14, two ends of the piston 16 are symmetrically provided with a group of test sealing rings, the piston 16 and the inner cavity of the high-pressure cylinder 14 form a sealing structure through the test sealing rings, and the test sealing rings comprise a left sealing ring 20 and a right sealing ring 2001; a piston I11 is arranged in the hydraulic cylinder 10, a piston rod 12 is connected to the piston I11, the piston rod 12 of the hydraulic cylinder 10 extends into a high-pressure cylinder 14 and is fixedly connected with one end of a piston 16, and the displacement sensor 13 is fixed on the piston rod 12; the hydraulic device A is connected with a hydraulic cylinder 10; the water leakage sensors are symmetrically distributed at the bottom positions of two ends of the high-pressure cylinder 14 and are used for detecting whether the test sealing ring leaks or not, and the water leakage sensors are divided into a left water leakage sensor 19 and a right water leakage sensor 1901; the top and the bottom of the middle position of the high-pressure cylinder 14 are respectively provided with a high-pressure pipe interface, the high-pressure pipe interface at the top of the high-pressure cylinder 14 is connected with a hydraulic device B through a high-pressure pipe I, the high-pressure pipe interface at the bottom of the high-pressure cylinder 14 is connected with the hydraulic device B through a high-pressure pipe II, the high-pressure pipe I and the high-pressure pipe II are respectively provided with a pressure sensor 26, a temperature sensor 15, an energy accumulator 17 and a thermometer 27, and pressure fluctuation generated in the reciprocating process of a piston 16 in the high-pressure cylinder 14 is provided by the energy accumulator 17; the signal output ends of the displacement sensor 13, the water leakage sensor 19, the pressure sensor 26 and the temperature sensor 15 are all connected with a controller, and the controller is connected with a display circuit, a reset circuit, a fault reset circuit, a hydraulic device A and a hydraulic device B.
The hydraulic device A comprises an oil tank 1, an electromagnetic directional valve 9, a one-way valve I5, an overflow valve I6, a pressure gauge I7, a proportional speed regulating valve 8, a hydraulic pump I3, a motor I4 and a filter I2, wherein the oil tank 1 is connected with an oil inlet of the electromagnetic directional valve 9 after sequentially passing through the filter I2, the hydraulic pump I3, the one-way valve I5 and the proportional speed regulating valve 8, the motor I4 is connected with the hydraulic pump I3, two oil outlets of the electromagnetic directional valve 9 are connected with a hydraulic cylinder 10, the control ends of the electromagnetic directional valve 9 and the proportional speed regulating valve 8 are connected with a controller, an oil return port of the electromagnetic directional valve 9 is connected to the oil tank 1, the overflow valve I6 and the pressure gauge I7 are arranged between the one-way valve I5 and the proportional speed regulating valve 8, the oil outlet of the overflow valve I6 is connected to.
The hydraulic device B comprises a water tank 25, a one-way valve II 501, an overflow valve II 601, a pressure gauge II 701, a proportional pressure regulating valve 23, a hydraulic pump II 301, a motor II 401, a filter II 201 and a cold and hot water unit 24, wherein an insulating layer II 1801 is arranged on the outer layer of the water tank 25, water in the water tank 25 sequentially passes through the cold and hot water unit 24, the filter II 201, the hydraulic pump II 301, the one-way valve II 501 and the proportional pressure regulating valve 23 and then is connected with high-pressure pipe connectors at the top and the bottom of a high-pressure cylinder 14 through a high-pressure pipe I and a high-pressure pipe II, the motor II 401 is connected with the hydraulic pump II 301, control ends of the cold and hot water unit 24 and the proportional pressure regulating valve 23 are connected with a controller, the overflow valve II 601 is arranged between the one-way valve II 501 and the proportional pressure regulating valve 23, a water outlet of the overflow valve II 601 is.
One end of the high-pressure pipe II is connected with a high-pressure pipe interface at the bottom of the high-pressure barrel 14, the other end of the high-pressure pipe II is divided into a first branch and a third branch, wherein the first branch is connected with a water outlet of the proportional pressure regulating valve 23 after passing through a first stop valve 21, and the third branch is connected to a water tank 25 after passing through a third stop valve 2101; one end of the high-pressure pipe I is connected with a high-pressure pipe interface at the top of the high-pressure barrel 14, the other end of the high-pressure pipe I is divided into a second branch and a fourth branch, the second branch is connected with a water outlet of the proportional pressure regulating valve 23 after passing through a second stop valve 22, and the fourth branch is connected to the water tank 25 after passing through a fourth stop valve 2201.
As shown in fig. 3, the model of the main control chip of the controller is STC89C51, in fig. 3, P1.0 is used as the inlet of the pressure sensor 26, P1.1 is used as the inlet of the water leakage sensor, P1.2 is used as the inlet of the temperature sensor 15, and P1.3 is used as the inlet of the displacement sensor 13. P2.3 is used as the speed-up output end, and P2.4 is used as the speed-down output end. The ports K1, K2 and K3 are used as the input of the keys SET, DOWN and UP, the pulse sending frequency can be manually controlled, and the pulse sending frequency is converted into corresponding pulse signals after being processed by the single chip microcomputer to control the proportional speed regulating valve 8, so that the reciprocating speed of the hydraulic cylinder 10 is controlled. The actual position signal measured by the P1.3 is compared with the position signal given by the singlechip, and the reciprocating speed of the hydraulic cylinder 10 is controlled and adjusted through PID.
The working process of the invention is as follows:
when the system needs to detect the sealing performance of the sealing ring in a high-pressure low-temperature environment, water in the water tank 25 is refrigerated through the cold and hot water unit 24, the temperature of the water reaches a preset temperature, the temperature value of the system is observed through the thermometer 27, the second stop valve 22 is opened, the fourth stop valve 2201, the first stop valve 21 and the third stop valve 2101 are closed, the water sequentially passes through the filter II 201, the hydraulic pump II 301, the one-way valve II 501 and the proportional pressure regulating valve 23, the proportional pressure regulating valve 23 is regulated to enable the system pressure to reach a preset pressure, the pressure value is observed through the pressure gauge II 701, and the high-pressure low-temperature water is conveyed into the piston 16 of the high-pressure cylinder. When the water in the piston 16 of the high-pressure cylinder 14 reaches the required temperature and pressure, the pressurization and refrigeration are stopped by the feedback of the pressure sensor 26 and the temperature sensor 15. And (3) closing the second stop valve 22, connecting the oil tank 1 with an oil inlet of the electromagnetic directional valve 9 after sequentially passing through the filter I2, the hydraulic pump I3, the one-way valve I5 and the proportional speed regulating valve 8, and regulating the moving speed of the proportional speed regulating valve 8 to control the moving speed of the piston 16 in the high-pressure cylinder 14, wherein the electromagnetic directional valve 9 works at the left position in the working process of the hydraulic cylinder 10, the electromagnetic directional valve 9 works at the middle position when the hydraulic cylinder 10 stops working, and the fluctuation of the generated pressure is provided by the energy accumulator 17 in the reciprocating motion process of the piston 16. When the sealing ring 20 on the left side of the piston 16 fails in sealing, water flows out from the left side of the piston 16, the left water leakage sensor 19 sends a water leakage signal at the moment, the input end of the controller receives a real-time water leakage signal from the left water leakage sensor 19, a real-time pressure signal of the pressure sensor 26 and a real-time temperature signal of the temperature sensor 15, the output end of the controller outputs a control signal, the opening degree of the proportional speed regulating valve 8 for controlling the speed of the hydraulic cylinder 10 is reduced to zero, and the fourth stop valve 2201 is opened to enable water in the piston 16 to flow to. When the sealing ring 2001 on the right side of the piston 16 fails in sealing, water flows out from the right side of the piston 16, the right water leakage sensor 1901 sends a water leakage signal at the moment, the input end of the controller receives a real-time water leakage signal from the right water leakage sensor 1901, a real-time pressure signal of the pressure sensor 26 and a real-time temperature signal of the temperature sensor 15, the output end of the controller outputs a control signal, the opening degree of the proportional speed regulating valve 8 for controlling the speed of the hydraulic cylinder 10 is reduced to zero, and the fourth stop valve 2201 is opened to enable water in the piston 16 to flow to.
When the system needs to detect the sealing performance of the sealing ring in a high-pressure high-temperature environment, water in the water tank 25 is heated by the cold and hot water unit 24, the temperature of the water reaches a preset temperature, the temperature value of the system is observed through the thermometer 27, the first stop valve 21 is opened, the third stop valve 2101, the second stop valve 22 and the fourth stop valve 2201 are closed, the water sequentially passes through the filter II 201, the hydraulic pump II 301, the one-way valve II 501 and the proportional pressure regulating valve 23, the proportional pressure regulating valve 23 is regulated to enable the system pressure to reach a preset pressure, the pressure value is observed through the pressure gauge 701, and the high-pressure low-temperature water is conveyed into the piston 16 of the high-pressure cylinder. When the water in the piston 16 of the high-pressure cylinder 14 reaches the required temperature and pressure, the pressurization and heating are stopped by the feedback of the pressure sensor 26 and the temperature sensor 15. The first stop valve 21 is closed, the oil tank 1 sequentially passes through the filter I2, the hydraulic pump I3, the one-way valve I5 and the proportional speed regulating valve 8 and then is connected with an oil inlet of the electromagnetic directional valve 9, the proportional speed regulating valve 8 is regulated to control the moving speed of the piston rod 12, so that the moving speed of the piston 16 in the high-pressure cylinder 14 is controlled, the electromagnetic directional valve 9 works at the left position in the working process of the hydraulic cylinder 10, when the hydraulic cylinder 10 stops working, the electromagnetic directional valve 9 works at the middle position, and the fluctuation of the generated pressure is provided by the energy accumulator 17 in the reciprocating motion process of the piston 16. When the sealing ring 20 on the left side of the piston 16 fails in sealing, water flows out from the left side of the piston 16, the left water leakage sensor 19 sends a water leakage signal at the moment, the input end of the controller receives a real-time water leakage signal from the left water leakage sensor 19, a real-time pressure signal of the pressure sensor 26 and a real-time temperature signal of the temperature sensor 15, the output end of the controller outputs a control signal, the opening degree of the proportional speed regulating valve 8 for controlling the speed of the hydraulic cylinder 10 is reduced to zero, and the third stop valve 2101 is opened to enable water in the piston 16 to flow to the water. When the sealing ring 2001 on the right side of the piston 16 fails in sealing, water flows out from the right side of the piston 16, the right water leakage sensor 1901 sends a water leakage signal at the moment, the input end of the controller receives a real-time water leakage signal from the right water leakage sensor 1901, a real-time pressure signal of the pressure sensor 26 and a real-time temperature signal of the temperature sensor 15, the output end of the controller outputs a control signal, the opening degree of the proportional speed regulating valve 8 for controlling the speed of the hydraulic cylinder 10 is reduced to zero, and the third stop valve 2101 is opened to enable water in the piston 16 to flow to the water.
Claims (9)
1. The utility model provides a detection apparatus for simulation deep sea environment reciprocating motion sealing washer sealing performance which characterized in that: the device comprises a hydraulic device A, a hydraulic device B, a high-pressure cylinder, a piston, a sealing ring, a displacement sensor, a pressure sensor, a temperature sensor, a water leakage sensor and a controller; the outer layer of the high-pressure cylinder is provided with a heat insulation layer I, a piston is arranged in the high-pressure cylinder, the piston is H-shaped and can reciprocate in the high-pressure cylinder, a group of test sealing rings are symmetrically arranged at two ends of the piston, the piston forms a sealing structure with the inner cavity of the high-pressure cylinder through the test sealing rings, a piston rod of a hydraulic cylinder extends into the high-pressure cylinder and is fixedly connected with one end of the piston, and the displacement sensor is fixed on the piston rod; the hydraulic device A is connected with a hydraulic cylinder; the water leakage sensors are symmetrically distributed at the bottom positions of two ends of the high-pressure cylinder and used for detecting whether the sealing ring leaks, the top and the bottom of the middle position of the high-pressure cylinder are respectively provided with a high-pressure pipe interface, the high-pressure pipe interface at the top of the high-pressure cylinder is connected with the hydraulic device B through a high-pressure pipe I, the high-pressure pipe interface at the bottom of the high-pressure cylinder is connected with the hydraulic device B through a high-pressure pipe II, and the high-pressure pipe I and the high-pressure pipe II are respectively provided with a pressure sensor, a temperature sensor; and the signal output ends of the displacement sensor, the water leakage sensor, the pressure sensor and the temperature sensor are all connected with a controller, and the controller is connected with a hydraulic device A and a hydraulic device B.
2. The device for detecting the sealing performance of the reciprocating seal ring in the simulated deep sea environment according to claim 1, is characterized in that: the hydraulic device A comprises an oil tank, an electromagnetic directional valve, a one-way valve I, an overflow valve I, a pressure gauge I, a proportional speed control valve, a hydraulic pump I, a motor I and a filter I, wherein the oil tank is sequentially connected with an oil inlet of the electromagnetic directional valve after passing through the filter I, the hydraulic pump I, the one-way valve I and the proportional speed control valve, the motor I is connected with the hydraulic pump I, two oil outlets of the electromagnetic directional valve are respectively connected with a hydraulic cylinder, a control end of the electromagnetic directional valve and a control end of the proportional speed control valve are connected with a controller, an oil return port of the electromagnetic directional valve is connected to the oil tank, the overflow valve I and the pressure gauge I are arranged between the one-way valve I and the proportional speed control valve, the.
3. The device for detecting the sealing performance of the reciprocating seal ring in the simulated deep sea environment according to claim 1, is characterized in that: the hydraulic device B comprises a water tank, a one-way valve II, an overflow valve II, a pressure gauge II, a proportional pressure regulating valve, a hydraulic pump II, a motor II, a filter II and a cold and hot water unit, wherein a heat insulation layer II is arranged on the outer layer of the water tank, water in the water tank sequentially passes through the cold and hot water unit, the filter II, the hydraulic pump II, the one-way valve II and the proportional pressure regulating valve and then is connected with high-pressure pipe connectors at the top and the bottom of a high-pressure cylinder through a high-pressure pipe I and the high-pressure pipe II, the motor II is connected with the hydraulic pump II, and; and an overflow valve II is arranged between the check valve II and the proportional pressure regulating valve, and a water outlet of the overflow valve II is connected to the water tank.
4. The device for detecting the sealing performance of the reciprocating seal ring in the simulated deep sea environment according to claim 3, is characterized in that: one end of the high-pressure pipe II is connected with a high-pressure pipe interface at the bottom of the high-pressure cylinder, the other end of the high-pressure pipe II is divided into a first branch and a third branch, the first branch is connected with a water outlet of the proportional pressure regulating valve after passing through a first stop valve, and the third branch is connected to the water tank after passing through a third stop valve; one end of the high-pressure pipe I is connected with a high-pressure pipe interface at the top of the high-pressure barrel, the other end of the high-pressure pipe I is divided into a second branch and a fourth branch, the second branch is connected with a water outlet of the proportional pressure regulating valve after passing through a second stop valve, and the fourth branch is connected to the water tank after passing through a fourth stop valve.
5. The device for detecting the sealing performance of the reciprocating seal ring in the simulated deep sea environment according to claim 1, is characterized in that: the display circuit is connected with the controller.
6. The device for detecting the sealing performance of the reciprocating seal ring in the simulated deep sea environment according to claim 1, is characterized in that: the reset circuit is connected with the controller.
7. The device for detecting the sealing performance of the reciprocating seal ring in the simulated deep sea environment according to claim 1, is characterized in that: the controller also comprises a fault reset circuit, and the fault reset circuit is connected with the controller.
8. The device for detecting the sealing performance of the reciprocating seal ring in the simulated deep sea environment according to claim 3, is characterized in that: the pressure fluctuation generated in the reciprocating process of the piston in the high-pressure cylinder is provided by the energy accumulator.
9. The device for detecting the sealing performance of the reciprocating seal ring in the simulated deep sea environment as claimed in claim 3, wherein the pressure regulating range of the proportional pressure regulating valve is 0 ~ 110MPa, and the temperature regulating range of the cold and hot water unit is 2 ~ 100 ℃.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113740054A (en) * | 2021-05-14 | 2021-12-03 | 深圳土佬哥密封件有限公司 | Testing machine |
| CN114112199A (en) * | 2021-11-24 | 2022-03-01 | 中国船舶科学研究中心 | Follow-up clamping and loading device utilizing deep sea pressure energy and using method thereof |
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Application publication date: 20191227 |