CN115291002B - Dynamic testing system and method for wet plug connector - Google Patents
Dynamic testing system and method for wet plug connector Download PDFInfo
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- CN115291002B CN115291002B CN202210776015.1A CN202210776015A CN115291002B CN 115291002 B CN115291002 B CN 115291002B CN 202210776015 A CN202210776015 A CN 202210776015A CN 115291002 B CN115291002 B CN 115291002B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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Abstract
The application relates to the technical field of connector testing, in particular to a dynamic testing system and method for a wet plug connector, comprising the following steps: the top of the pressurizing container is provided with a sealing cover, and a closed test space is formed in the sealing cover and the pressurizing container; the pressurizing system comprises a pressurizing pump set, wherein the liquid inlet end of the pressurizing pump set is connected with a reservoir, and the liquid outlet end of the pressurizing pump set is connected to the testing space and used for injecting pressure medium into the testing space. The hydraulic system is used for realizing the plugging action of the connector under water, the reliability is high, the plugging force of the controllable connector can be up to tens of tons which is higher than that of similar equipment driven by a motor, the cost is only one tenth of that of the motor, the driver is a bidirectional hydraulic rod, the hydraulic rod can not cause the pressure fluctuation of the pressure medium when moving in the pressure medium (namely, when the hydraulic rod is plugged, the hydraulic rod is plugged), meanwhile, the driving of the hydraulic rod is not influenced, and the plugging speed of the hydraulic rod is controllable.
Description
Technical Field
The application relates to the technical field of connector testing, in particular to a dynamic testing system and method for a wet plug connector.
Background
With the search of human beings for the ocean, wet-plug connectors are increasingly being popularized and used. The wet plug connector is a connector which can directly perform docking and separation operations at the depth of thousands of meters under water, and in order to ensure the reliability of the connector, the operation of performing docking and separation circulation by simulating the depth of water is required during performance test, and the performance of the connector is also required to be monitored in real time during the docking and separation circulation.
The testing process is to control the butt joint and the separation of the connectors, and the main testing method at present is to use an underwater motor as the drive of the plugging and unplugging action, but the underwater motor has high price, low reliability and limited plugging force, and the connectors with large plugging and unplugging force cannot be plugged in place.
The applicant found through the search that, as shown in patent document 1, the driving mechanism is placed outside the testing cavity, the driving rod moves in the pressurizing cavity to enable the connector to perform the plugging action, but the scheme cannot reach the deep-sea high-pressure testing environment, as shown in patent document 2, the driving component is located in the testing cavity, hydraulic pressure is used as driving, but the piston is located in the testing cavity, when the piston moves, the cavity pressure changes, the accuracy of the plugging action cannot be controlled, and even the plugging action cannot be completed under high pressure.
In combination with the above, it is desirable to obtain a dynamic testing device for wet plug connectors, which has a large plug force and can realize any water depth test.
Prior art literature:
patent document 1: CN 108008240A-method for testing underwater plugging performance of underwater wet connector
Patent document 2: pressure cabin testing device of CN 215525972U-wet type communication electric connector
Disclosure of Invention
Aiming at the defects and shortcomings of the connector testing device in the prior art, the application aims to control a bidirectional hydraulic cylinder to further control the connector plug to linearly reciprocate through a ground hydraulic control system so as to realize plugging and separating, and monitor the performance of the connector in real time through ground testing equipment.
The first aspect of the present application proposes a technical solution, a dynamic testing system for a wet pluggable connector, comprising:
the top of the pressurizing container is provided with a sealing cover, and a closed test space is formed in the sealing cover and the pressurizing container;
the pressurizing system comprises a pressurizing pump set, wherein the liquid inlet end of the pressurizing pump set is connected with a reservoir, and the liquid outlet end of the pressurizing pump set is connected to the test space and is used for injecting pressure medium into the test space;
the wet-drawing plug connector is arranged in the test space and comprises a male plug and a female plug, and the male plug is fixedly connected with the pressurized container;
the hydraulic cylinder is arranged in the test space, and the male plug is connected to the output end of the hydraulic cylinder;
the hydraulic controller is connected to the hydraulic cylinder, so that the hydraulic cylinder drives the male plug and the female plug to complete the plug-in action;
the connector performance testing device is connected to the female plug through a watertight cable and is used for testing the connection state of the connector;
the hydraulic cylinder is a bidirectional hydraulic cylinder, a telescopic rod is arranged in the hydraulic cylinder, in the process of completing the pulling and inserting actions of the hydraulic cylinder, at least part of two ends of the telescopic rod are positioned in the test space, and the extension amount of the first end of the telescopic rod is identical to the contraction amount of the second end of the telescopic rod, so that the volume of the test space is kept unchanged.
Preferably, the pressurizing system further comprises a gland component, an inclined plane is arranged at the top of the sealing cover, a limiting frame is arranged outside the pressurizing container, a first guide rail is arranged on the upper portion of the limiting frame, an inclined block is arranged on the first guide rail, and the inclined block is arranged to be driven by the driving component along the direction of the first guide rail, so that the sealing cover slides along the inner wall of the pressurizing container.
Preferably, the inclined plane is inclined in a direction toward the length direction of the first guide rail, and the inclined plane has an inclination angle smaller than 5 °.
Preferably, the pressurizing container is further connected with a pressure relief system, the pressure relief system comprises an automatic pressure relief valve and a manual pressure relief valve, the automatic pressure relief valve and the manual pressure relief valve are connected in parallel, and a pressure relief speed regulating valve is connected in series with a pressure relief end of the automatic pressure relief valve.
Preferably, the booster pump group comprises a low-pressure pump and a high-pressure pump, the booster flow rate of the low-pressure pump is larger than 5L/min, and the booster flow rate of the high-pressure pump is smaller than 1L/min.
Preferably, a supporting platform is arranged at the bottom of the pressurized container, a second guide rail is arranged on the supporting platform, the limiting frame can slide on the second guide rail along the horizontal direction, and the first guide rail is parallel to the second guide rail.
Preferably, the bidirectional hydraulic cylinder is internally provided with an oil cavity and a telescopic rod positioned in the oil cavity, two ends of the oil cavity are provided with perforations for the telescopic rod to penetrate, the middle part of the telescopic rod is provided with a piston, two ends of the hydraulic cylinder are also provided with an oil filling/discharging port, and the oil filling/discharging port is connected to the hydraulic controller through an oil supply pipe so that the piston slides in the hydraulic cylinder.
The second aspect of the present application proposes a technical solution, a dynamic testing method for a wet plug connector, and a dynamic testing system for a wet plug connector using the above solution, comprising the following steps:
step 1, placing a connector to be tested and a bidirectional hydraulic cylinder in a pressurized container, and sealing the pressurized container;
step 2, injecting a pressure medium into the pressurized container through a pressurizing system to enable the pressure in the pressurized container to reach 60-120Mpa;
step 3, driving a bidirectional hydraulic cylinder to enable the test connector to be plugged and unplugged, and obtaining test data through a connector performance test device;
when the bidirectional hydraulic cylinder completes the pulling and inserting actions, the telescopic rods at the two ends of the bidirectional hydraulic cylinder are partially exposed in the pressurized container.
Preferably, in the step, the pressurizing process includes a first pressurizing stage, a second pressurizing stage and a third pressurizing stage, wherein the first pressurizing stage uses a low-pressure pump to pressurize, the second pressurizing stage uses a high-pressure pump to pressurize, and the third pressurizing stage uses the relative sliding of the inclined block and the inclined surface on the sealing cover to enable the sealing cover to squeeze the pressure medium for pressurizing.
Preferably, the pressurizing range of the first stage is 0-20Mpa, the pressurizing range of the second stage is 20-80Mpa, and the pressurizing range of the third stage is 80-120Mpa.
Compared with the prior art, the application has the advantages that:
the hydraulic system is used for realizing the underwater plugging action of the connector, the reliability is high, the plugging force of the controllable connector can be up to tens of tons which is higher than that of similar equipment driven by a motor, the cost is only one tenth of that of the similar equipment driven by the motor, the driver is a bidirectional hydraulic rod, the hydraulic rod can not cause the pressure fluctuation of the pressure medium when moving in the pressure medium (namely, the plugging action), meanwhile, the driving of the hydraulic rod is not influenced, the plugging speed of the hydraulic rod is controllable, and the detection result is more standard;
the pressure in the pressurizing cavity can reach 120Mpa by the three-stage pressurizing system, the 12000m water depth can be simulated, and the large-scale performance test can be facilitated;
the hydraulic rod is controlled by the ground control system to perform plugging actions, so that the watertight connector can be plugged at different speeds, intermittently plugged, plugged for a certain time and the like, and compared with an underwater motor, the hydraulic rod has larger plugging force and lower price.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the application will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of the structure of the stop frame of the present application above a pressurized container;
FIG. 2 is a schematic view of the stop frame of the present application shown removed from above the pressurized container;
FIG. 3 is a schematic diagram of the pressurization/depressurization system of the pressurized container shown in the present application;
FIG. 4 is a schematic diagram of a wet plug connector dynamic test system according to the present application;
FIG. 5 is a schematic view of a wet connect-disconnect connector of the present application;
fig. 6 is a schematic view of the structure of the bidirectional hydraulic cylinder according to the present application.
Detailed Description
For a better understanding of the technical content of the present application, specific examples are set forth below, along with the accompanying drawings.
Dynamic test System for Wet plug connectors
The first aspect of the application provides a technical scheme, namely a dynamic testing system for a wet plug connector, wherein the testing system is divided into a ground part and an underwater part, and the ground part is provided with a testing device and a hydraulic system; the underwater part is divided into a bidirectional hydraulic cylinder and a bracket for supporting a connector, a connector plug is arranged on the bidirectional hydraulic cylinder, and a connector socket is arranged on the bracket. The underwater portion is placed in a pressurized container 3, and the pressure is increased by injecting fresh water to simulate a deep sea environment. The ground part and the underwater part are connected through a hydraulic pipe, a watertight cable and a watertight connector, and the hydraulic pipe, the watertight cable and the watertight connector are arranged on the sealing cover 4 and sealed to ensure that the pressure in the hydraulic tank can be increased. The bidirectional hydraulic cylinder is controlled by the ground hydraulic control system so as to control the connector plug to linearly reciprocate, so that the plugging and the separating are realized, and the performance of the connector is monitored in real time by the ground test equipment.
Pressurized container
As shown in fig. 1, the pressurized container 3 is configured as a cylinder, the upper end of the pressurized container has an opening, the sealing cover 4 is connected to the opening of the pressurized container 3, so that a closed test space 301 is formed between the sealing cover 4 and the pressurized container 3, a valve or an interface connected with a pressurizing system is further arranged on the outer wall of the pressurized container 3, and a pressure medium can be injected into the test space 301 through the pressurizing system to simulate a deep sea pressure environment, wherein the injected pressure medium is clean water.
Pressure adding/relieving system
Referring to fig. 3, the pressurizing system includes a pressurizing pump set, a liquid inlet end of the pressurizing pump set is connected to a reservoir 31, and a liquid outlet end of the pressurizing pump set is connected to the test space 301, so as to inject pressure medium into the test space 301.
Wherein a filter is connected in series with the pipe between the reservoir 31 and the booster pump unit for filtering impurities in the water.
Further, the booster pump group comprises a low-pressure pump 32 and a high-pressure pump 33, the booster flow rate of the low-pressure pump 32 is more than 5L/min, and the booster flow rate of the high-pressure pump 33 is less than 1L/min. When the pressure in the test space 301 is low, the low pressure pump 32 is used to rapidly inject pressure medium into the test space 301, and when the pressure increases to the maximum pressure value of the low pressure pump 32, the high pressure pump 33 is used to pressurize the test space 301 to achieve a larger pressure value.
Furthermore, when a deeper water depth needs to be simulated, a larger pressure is needed, and in the application, the top of the sealing cover 4 is provided with the inclined surface 41, and the sealing cover 4 is extruded with a pressure medium to achieve a higher pressure by horizontally extruding the inclined surface 41.
Specifically, as shown in fig. 1-2, the sealing cover 4 is driven by the inclined block 54 mounted on the limit frame 5, the inclined block 54 moves in the horizontal direction, and presses against the inclined surface 41 at the top of the sealing cover 4, so that the horizontal movement is changed into the vertical movement, the sealing cover 4 moves downward, and the test space 301 is pressurized.
The limiting frame 5 is in a door shape, the top of the limiting frame is provided with a plane, the plane is provided with a first guide rail 51, and a driving component is also fixed on the plane and is arranged to drive the inclined block 54 to move along the length direction of the first guide rail 51. The length direction of the first guide rail 51 is the inclination direction of the inclined surface 41 of the sealing cover 4.
In this way, the limiting frame 5 can provide an upper limit for the sealing cover 4, so that the sealing cover 4 can not be ejected upwards by pressure, and can be driven to move downwards by the inclined block 54 to realize pressurization.
Optionally, in order to improve the pressurization precision, the driving component is an electric telescopic rod, and the driving rod 53 of the electric telescopic rod can control the accurate movement of the inclined block 54, and further, the inclination angle of the inclined surface 41 is smaller than 5 degrees, so that the sealing cover 4 can be moved downwards with a small displacement, and an accurate pressurization process can be realized.
The above-mentioned driving member, the first guide rail 51 and the inclined block 54 form a capping member, and in other embodiments, the capping member may be other driving structures capable of sliding the sealing cap 4 along the inner wall of the pressurized container 3, for example, driving mechanisms capable of changing long-distance movement in other directions into small-distance movement in the vertical direction by using a reduction gear or a screw combination.
Further, the pressurizing container 3 is further connected with a pressure relief system, the pressure relief system comprises an automatic pressure relief valve 35 and a manual pressure relief valve 34, the automatic pressure relief valve 35 and the manual pressure relief valve 34 are connected in parallel, and a pressure relief speed regulating valve 36 is connected in series at the pressure relief end of the automatic pressure relief valve 35, so that the automatic pressure relief flow can be controlled.
Thus, the reliability of pressure relief can be ensured by the double-channel pressure relief of the automatic pressure relief valve 35 and the manual pressure relief valve 34.
Further, the bottom of the pressurized container 3 is provided with a supporting platform 1, the supporting platform 1 is provided with a second guide rail 11, and the limiting frame 5 can slide on the second guide rail 11 along the horizontal direction.
Thus, after the test is finished, the limiting frame 5 can be moved, the limiting frame 5 is moved to one side of the pressurized container 3, the sealing cover 4 is opened, the test piece is taken out, and the limiting frame 5 is moved to one side from above the pressurized container 3, as shown in fig. 1-2, wherein the pressurized container 3 is fixed on the supporting table 2, and an electric telescopic rod or a motor driving component for driving the limiting frame 5 to move can be arranged at the bottom.
Test mechanism
As shown in fig. 3 to 4, the wet connect-disconnect connector 7 is disposed in the test space 301, the wet connect-disconnect connector 7 includes a male plug 71 and a female plug 72, the male plug 71 is fixedly connected with the pressurized container 3; the hydraulic cylinder is arranged in the test space 301, and the male plug 71 is connected to the output end of the hydraulic cylinder; the hydraulic controller 61 is connected to the hydraulic cylinder, so that the hydraulic cylinder drives the male plug 71 and the female plug 72 to complete the plugging action. Wherein the hydraulic cylinder is a bidirectional hydraulic cylinder 6.
Further, the connector performance testing device 75 is connected to the female plug 72 through a watertight cable for testing the connection state of the connector.
Optionally, the connector performance test device 75 is one or more of an insulation resistance tester, a withstand voltage tester, a contact resistance tester, etc., and may monitor one or more properties of the connector in real time on-line throughout the life cycle.
The hydraulic controller 61 is composed of a pump station, a motor, a gear pump, an oil tank, a hydraulic lock, a valve, a display, a controller and the like, and can freely set parameters such as the plugging and separating speed, the frequency and the like of the connector under water according to requirements.
As shown in fig. 5, the lower end of the bidirectional hydraulic cylinder 6 is provided with a clamp 62, which can clamp a female plug 72, a male plug 71 is connected to the bottom of the pressurized container 3 through a supporting frame 73, the male plug 71 and the female plug 72 are respectively connected with a watertight cable, and the male plug and the female plug are connected to a connector performance testing device 75 by penetrating out of the sealing cover 4, so that the connector performance testing device 75 obtains measurement data.
Further, in order to reduce the influence on the pressure in the test space 301 during the plug-in operation of the male plug 71 and the female plug 72, the hydraulic cylinder is a bidirectional hydraulic cylinder 6, a telescopic rod is arranged in the hydraulic cylinder, and in the process of completing the plug-in operation of the hydraulic cylinder, at least part of two ends of the telescopic rod are positioned in the test space 301, and the extension amount of the first end of the telescopic rod is the same as the contraction amount of the second end, so that the volume of the test space 301 is kept unchanged.
In this way, the volume of the telescopic rod in the test space 301 is unchanged no matter how the telescopic rod moves, and the fluctuation of the pressure in the test space 301 is not caused.
In the process of completing the plugging action, the telescopic rod moves back and forth between a first position and a second position, the first position and the second position are limiting positions of the telescopic rod, the telescopic rod is arranged at the first position or the second position and moves back and forth between the first position and the second position, both ends of the telescopic rod are positioned outside the cylinder body of the hydraulic cylinder, namely, the extension amount of the telescopic rod at one end is the reduction amount of the telescopic rod at the other end, the diameter of the telescopic rod is consistent, the extending volume at one end is the same as the contracting volume at the other end, and the spatial variation of the test space 301 cannot be caused.
Specifically, as shown in fig. 6, an oil cavity and a telescopic rod positioned in the oil cavity are arranged inside the bidirectional hydraulic cylinder 6, two ends of the oil cavity are provided with holes for the telescopic rod to penetrate, a first end 602 of the telescopic rod penetrates through the first hole, a second end 606 of the telescopic rod penetrates through the second hole, a piston 603 is arranged in the middle of the telescopic rod, two ends of the hydraulic cylinder are also provided with oil filling/discharging ports, and the oil filling/discharging ports are connected to the hydraulic controller 61 through oil supply pipes, so that the piston 603 slides in the hydraulic cylinder.
Thus, when the left oil filling/discharging port is filled with oil, the pressure of the first cavity 604 is increased, the piston 603 moves to the right, when the right oil filling/discharging port is filled with oil, the pressure in the second cavity 605 is increased, the piston 603 moves to the left, the connector is driven to be pulled out and plugged in, in the process, the telescopic rod cannot influence the pressure in the test space 301, the water pressure in the test space 301 cannot influence the driving pressure of the telescopic rod, the pulling-out and plugging-in speed of the hydraulic rod is controllable, and the functions of pulling out, intermittent pulling-out, fixed pulling-out and the like of the watertight connector at different speeds can be realized.
Dynamic test method for wet plug connector
The second aspect of the present application proposes a technical solution, a dynamic testing method for a wet plug connector, and a dynamic testing system for a wet plug connector using the above solution, comprising the following steps:
step 1, placing a connector to be tested and a bidirectional hydraulic cylinder 6 in a pressurized container 3, and sealing the pressurized container 3;
step 2, injecting a pressure medium into the pressurized container 3 through a pressurizing system to enable the pressure in the pressurized container 3 to reach 30-50Mpa;
step 3, driving the bidirectional hydraulic cylinder 6 to enable the test connector to be plugged and unplugged, and obtaining test data through the connector performance test device 75;
when the bidirectional hydraulic cylinder 6 completes the pulling and inserting actions, the telescopic rods at the two ends of the bidirectional hydraulic cylinder are partially exposed in the pressurized container 3.
In a specific embodiment, the wet plugging connector 7 is arranged in the test space 301, the male plug 71 is connected to the bottom of the pressurized container 3 through the supporting frame 73, the female plug 72 is connected to the clamp 62 at the lower end of the bidirectional hydraulic cylinder 6, then the watertight cable and the hydraulic pipe of the bidirectional hydraulic cylinder 6 are led out from the sealing cover 4, and the corresponding sealing parts are connected, so that the sealing cover 4 is connected to the opening of the pressurized container 3 in a sealing way;
the pressurizing system shown in fig. 3 is utilized to inject clean water into the pressurizing container 3 for pressurizing, a pressurizing step is determined according to a set pressure value, if the set pressure value is within 20-80Mpa, the low-pressure pump 32 is used for pressurizing in the first stage, the high-pressure pump 33 is used for pressurizing in the second stage after the pressurizing to 20Mpa, the bidirectional hydraulic cylinder 6 is driven for plugging and unplugging test after the pressure is reached, the connector performance testing device 75 is utilized to obtain measurement data, and the automatic pressure relief valve 35 and the manual pressure relief valve 34 are utilized for pressure relief after the test is finished.
Further, when the set test pressure value is between 80Mpa and 120Mpa, after the pressure exceeds 80Mpa, the sealing cover 4 extrudes the pressure medium to perform the third stage pressurization by controlling the relative sliding of the inclined block 54 and the inclined surface 41 on the sealing cover 4.
Thus, by means of the three-stage pressurizing system, the pressure in the pressurized container 3 can be brought to a pressure of 120Mpa, simulating a water depth range of 0-12000 m.
By combining the embodiment, the hydraulic system is used for realizing the plugging action of the connector under water, the reliability is high, the plugging force of the controllable connector can be up to tens of tons which are higher than that of similar equipment driven by a motor, the cost is only one tenth of that of the motor, the driver is a bidirectional hydraulic rod, the pressure fluctuation of the pressure medium can not be caused when the hydraulic rod moves in the pressure medium (namely, the plugging action is performed), meanwhile, the driving of the hydraulic rod is not influenced, the plugging speed of the hydraulic rod is controllable, and the detection result is more standard.
While the application has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present application. Accordingly, the scope of the application is defined by the appended claims.
Claims (9)
1. A dynamic testing system for wet plug connectors, comprising:
the device comprises a pressurized container (3), wherein a sealing cover (4) is arranged at the top of the pressurized container (3), and a closed test space (301) is formed in the sealing cover (4) and the pressurized container (3);
the pressurizing system comprises a pressurizing pump set, wherein a liquid inlet end of the pressurizing pump set is connected with a water reservoir (31), and a liquid outlet end of the pressurizing pump set is connected to the testing space (301) and is used for injecting pressure medium into the testing space (301);
a wet-drawing plug connector (7) arranged in the test space (301), wherein the wet-drawing plug connector (7) comprises a male plug (71) and a female plug (72), and the male plug (71) is fixedly connected with the pressurizing container (3);
-a hydraulic cylinder arranged in the test space (301), the male plug (71) being connected to an output of the hydraulic cylinder;
the hydraulic controller (61) is connected to the hydraulic cylinder, so that the hydraulic cylinder drives the male plug (71) and the female plug (72) to complete the plug-in action;
connector performance testing means (75) connected to the female plug (72) through a watertight cable for testing the connection state of the connector;
the hydraulic cylinder is a bidirectional hydraulic cylinder (6), a telescopic rod is arranged in the hydraulic cylinder, in the process of completing the pulling and inserting actions of the hydraulic cylinder, at least part of two ends of the telescopic rod are positioned in the test space (301), and the extension amount of the first end of the telescopic rod is identical to the contraction amount of the second end, so that the volume of the test space (301) is kept unchanged.
2. The dynamic testing system of the wet plug connector according to claim 1, wherein the pressurizing system further comprises a gland component, an inclined plane is arranged at the top of the sealing cover (4), a limiting frame (5) is arranged outside the pressurizing container (3), a first guide rail (51) is arranged at the upper part of the limiting frame (5), an inclined block (54) is arranged on the first guide rail (51), and the inclined block (54) is arranged to be driven by a driving component (52) along the direction of the first guide rail (51) so that the sealing cover (4) slides along the inner wall of the pressurizing container (3).
3. The dynamic test system of wet plug connectors according to claim 2, wherein the inclined surface is inclined in a direction toward the length of the first rail (51), and the inclined surface has an inclination angle of less than 5 °.
4. The dynamic testing system of the wet plug connector according to claim 1, wherein the pressurizing container (3) is further connected with a pressure relief system, the pressure relief system comprises an automatic pressure relief valve (35) and a manual pressure relief valve (34), the automatic pressure relief valve (35) and the manual pressure relief valve (34) are connected in parallel, and a pressure relief speed regulating valve (36) is connected in series with a pressure relief end of the automatic pressure relief valve (35).
5. The wet plug connector dynamic test system according to claim 1, wherein the booster pump unit comprises a low pressure pump (32) and a high pressure pump (33), the booster flow rate of the low pressure pump (32) is greater than 5L/min, and the booster flow rate of the high pressure pump (33) is less than 1L/min.
6. The dynamic testing system of the wet plug connector according to claim 2, wherein a supporting platform (1) is arranged at the bottom of the pressurized container (3), a second guide rail (11) is arranged on the supporting platform (1), the limiting frame (5) can slide on the second guide rail (11) along the horizontal direction, and the first guide rail (51) and the second guide rail (11) are parallel.
7. The dynamic testing system of a wet plug connector according to any one of claims 1 to 6, wherein an oil cavity and a telescopic rod positioned in the oil cavity are arranged in the bidirectional hydraulic cylinder (6), two ends of the oil cavity are provided with through holes for the telescopic rod to pass through, a piston (603) is arranged in the middle of the telescopic rod, two ends of the bidirectional hydraulic cylinder (6) are also provided with oil filling/discharging ports, and the oil filling/discharging ports are connected to the hydraulic controller (61) through oil supply pipes so that the piston (603) slides in the hydraulic cylinder.
8. The dynamic testing system of a wet plug connector according to claim 7, wherein the telescopic rod comprises a first position and a second position during the process of completing the plug action of the bidirectional hydraulic cylinder (6), the telescopic rod is positioned at the first position or the second position and reciprocates at the first position and the second position, both ends of the telescopic rod are provided with parts exposed out of the cylinder body, and the volume of the telescopic rod which is stretched/contracted at the first end is the same as the volume of the telescopic rod which is stretched/contracted at the second end.
9. A method of dynamic testing of a wet plug connector using the dynamic testing system of a wet plug connector according to any one of claims 1 to 7, the method comprising the steps of:
step 1, placing a connector to be tested and a bidirectional hydraulic cylinder (6) in a pressurized container (3), and sealing the pressurized container (3);
step 2, injecting a pressure medium into the pressurized container (3) through a pressurizing system to enable the pressure in the pressurized container (3) to reach 30-50Mpa;
step 3, driving a bidirectional hydraulic cylinder (6) to enable the test connector to be plugged and unplugged, and obtaining test data through a connector performance test device (75);
when the bidirectional hydraulic cylinder (6) completes the pulling and inserting actions, the telescopic rods at the two ends of the bidirectional hydraulic cylinder are partially exposed in the pressurized container (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210776015.1A CN115291002B (en) | 2022-07-02 | 2022-07-02 | Dynamic testing system and method for wet plug connector |
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| CN202210776015.1A CN115291002B (en) | 2022-07-02 | 2022-07-02 | Dynamic testing system and method for wet plug connector |
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| CN115291002B true CN115291002B (en) | 2023-09-15 |
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