CN118776777B - Pipeline valve pressure test platform for ship - Google Patents
Pipeline valve pressure test platform for ship Download PDFInfo
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- CN118776777B CN118776777B CN202411260606.9A CN202411260606A CN118776777B CN 118776777 B CN118776777 B CN 118776777B CN 202411260606 A CN202411260606 A CN 202411260606A CN 118776777 B CN118776777 B CN 118776777B
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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
- G01M3/26—Investigating 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
- G01M3/28—Investigating 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
- G01M3/2876—Investigating 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention relates to the technical field of valve pressure testing, and particularly discloses a pipeline valve pressure testing platform for a ship, which comprises the following components: the base, the air cavity has been seted up to the bottom of base, and the driving chamber has been seted up at the middle part of base, and rotatory chamber has been seted up at the top of base, and the inner chamber of rotatory chamber is all along four limit grooves that run through from top to bottom of equidistant seting up of circumference, and first spout has all been seted up along the left and right directions in both sides around the inner chamber of limit groove. According to the invention, a pulley block amplification mechanism is introduced, the fine pressure change in the inner cavity of the valve is skillfully converted into remarkable mechanical displacement through a precisely designed pulley block structure, the sensitivity and intuitiveness of detection are greatly improved, even if the small leakage occurs in a high-pressure environment, the detection result can be accurately captured through an amplified moving stroke, so that the detection result is more reliable, in addition, the platform ensures the cleanness and stability of a test environment, and the complexity and cost of detection operation are reduced.
Description
Technical Field
The invention relates to the technical field of valve pressure testing, in particular to a pipeline valve pressure testing platform for a ship.
Background
In the field of ship engineering, the pipeline valve is used as a key component for connecting various systems and controlling the flow direction and pressure of fluid, the stability and the tightness of the performance of the pipeline valve are directly related to the safety and the efficiency of the ship operation, the valve plays an irreplaceable role in a plurality of key links such as a fuel system, a cooling system, a hydraulic transmission system and the like of the ship, the accurate distribution and the adjustment of the fluid are ensured, the resource waste, the environmental pollution and even the safety accidents caused by leakage are prevented, therefore, the pipeline valve for the ship is subjected to strict pressure test, and the pressure bearing capability and the sealing performance of the pipeline valve under different working conditions are verified, so that the pipeline valve is an indispensable ring in the design and the manufacturing process of the ship;
Conventionally, pressure testing of pipeline valves for ships mainly depends on pressure monitoring by a pressure gauge, however, the method is worry about tiny leakage detection, particularly in a high-pressure environment, even if the valve has tiny leakage, due to sensitivity limitation of the pressure gauge, tiny pressure change caused by the tiny pressure change is difficult to capture, so that the sealing performance of the valve cannot be accurately judged;
In order to overcome the limitation, a more visual and relatively sensitive detection mode, namely a water immersion method, is generally adopted in the prior art, the method is characterized in that after a valve pipeline is sealed, high-pressure gas is filled into the inner cavity of the valve, then the whole or part of the valve is immersed in water, the incompressibility and good sealing property of the water are utilized, whether the valve is leaked or not is indirectly judged by observing whether small bubbles are generated in the water, and the method improves the detection sensitivity to a certain extent, and is particularly excellent in identifying tiny leakage;
However, although the water immersion method has unique advantages, various defects are also exposed in practical application, firstly, the generation and observation of bubbles are extremely easy to be interfered by external factors, such as water flow disturbance, water temperature change, light conditions and the like, the factors can cause the subjectivity and uncertainty of the observation result to be increased, further, the accuracy of detection is influenced, in addition, the quietness and stability of the detection environment are also necessary conditions for ensuring the accuracy of the observation result, the complexity and cost of the detection operation are definitely increased, further, the parameters of the cleanliness, the temperature and the like of water quality also have important influence on the detection effect, if the water quality is unclean or the temperature is abnormal, the generation of non-leakage bubbles, such as the precipitation of dissolved gas in water and the like, can greatly increase the difficulty of judging the results, so that a detector is difficult to distinguish the sources of the bubbles, and the valve leakage or other factors are caused.
Disclosure of Invention
The invention aims to provide a pipeline valve pressure test platform for a ship, which aims to solve the problem that test results proposed in the prior art have subjectivity and uncertainty.
In order to achieve the above purpose, the present invention provides the following technical solutions: a pipeline seed valve pressure test platform for a ship, comprising: the device comprises a base, wherein an air cavity is formed in the bottom of the base, a driving cavity is formed in the middle of the base, a rotating cavity is formed in the top of the base, four limit grooves penetrating up and down are formed in the upper side and the lower side of an inner cavity of the rotating cavity at equal intervals along the circumferential direction, a first sliding groove is formed in the front side and the rear side of the inner cavity of the limit groove along the left-right direction, and a sealing rubber pad is arranged at the top end of the base; the number of the first limiting rods is eight, and the left and right ends of the eight first limiting rods are respectively arranged on the left and right sides of the inner cavity of the eight first sliding grooves; the sliding column is inserted into the inner cavity of the first sliding groove in a matching way, the sliding column is sleeved on the outer wall of the first limiting rod in a sliding way, and the sliding column extends out of the inner cavity of the first sliding groove; the booster pump is connected with the screw the bottom end of the inner cavity of the air cavity; one end of the first air pipe is arranged at an air inlet of the booster pump, and the other end of the first air pipe extends out of an inner cavity of the air cavity; the rotary table is rotatably arranged in the inner cavity of the rotary cavity, four first driving grooves penetrating up and down are formed in the top end of the rotary table at equal intervals along the circumferential direction, and the positions of the first driving grooves correspond to the positions of the limiting grooves and are matched with each other; the positioning mechanism is arranged in the inner cavity of the driving cavity; the valve is arranged at the top end of the base; the support frame is arranged at the top end of the base; the hydraulic cylinder is arranged on the supporting frame is arranged at the middle part of the top end of the inner cavity; the top middle part of pressure monitoring mechanism sets up in the bottom of pneumatic cylinder, and pressure monitoring mechanism's bottom contacts with the top of valve.
Preferably, in order to position the valve, the positioning mechanism includes: the upper ends and the lower ends of the plurality of first guide rods are respectively circumferentially equidistant and arranged on the upper side and the lower side of the inner cavity of the driving cavity; the connecting plate is slidably sleeved on the outer wall of the first guide rod, four second sliding grooves are formed in the top end of the connecting plate at equal intervals along the circumferential direction, and the positions of the second sliding grooves correspond to the positions of the limiting grooves and are matched with the positions of the limiting grooves; the left end and the right end of the second limiting rod are respectively arranged at the left side and the right side of the inner cavity of the second chute; the sliding block is slidably matched and inserted into the inner cavity of the second chute, and is slidably sleeved on the outer wall of the second limiting rod; the bottom end of the extrusion rod is rotatably arranged at the top end of the sliding block through a bearing, the top end of the extrusion rod slidably and adaptively penetrates through the inner cavity of the limiting groove and the inner cavity of the first driving groove and extends out of the top end of the base, the outer wall of the extrusion rod is contacted with the valve, the top of the outer wall of the extrusion rod is provided with the second driving groove, and the sliding column slidably and adaptively is inserted into the top end of the inner cavity of the second driving groove; the clamping jaw sets up in the top of extruding rod, and four clamping jaws are relative setting, and the bottom and the valve of clamping jaw contact, and the bottom of clamping jaw is provided with sealed pad.
Preferably, in order to drive the extrusion rod to move, the positioning mechanism further comprises: the number of the cylinders is a plurality of, the cylinders are arranged at the bottom end of the inner cavity of the driving cavity at equal intervals along the circumferential direction, and the top ends of the cylinders are arranged at the bottom end of the connecting plate; one end of the second air pipe is arranged at the air outlet of the booster pump, the other end of the second air pipe penetrates through the middle parts of the inner cavities of the driving cavity and the rotating cavity and extends out of the top end of the base, and the top end of the second air pipe extends into the inner cavity of the valve; the middle part of the outer wall of the rotating rod is rotatably arranged in the middle of the bottom end of the inner cavity of the rotating cavity through a bearing, the bottom end of the rotating rod is rotatably extended into the inner cavity of the driving cavity, the second air pipe is rotatably inserted into the inner cavity of the rotating rod, and the rotating disc is sleeved on the outer wall of the rotating rod and is locked through a jackscrew; the motor screw is connected to the right side of the top end of the base; the bottom end of the connecting rod is locked at the output end of the motor through a coupler; the first belt pulley is sleeved at the bottom end of the outer wall of the rotary rod and locked; the second belt pulley is sleeved on the outer wall of the connecting rod and locked; the two ends of the belt are respectively sleeved on the outer walls of the first belt pulley and the second belt pulley.
Preferably, in order to monitor whether a change in pressure occurs in the valve cavity, the pressure monitoring mechanism comprises: the top end of the extrusion frame is arranged at the bottom end of the hydraulic cylinder, the bottom end of the extrusion frame is contacted with the top end of the valve, and the bottom end of the extrusion frame is provided with a sealing rubber pad; the piston cylinder is arranged in the middle of the bottom end of the inner cavity of the extrusion frame, the bottom end of the piston cylinder extends out of the bottom end of the extrusion frame, and the bottom end of the piston cylinder extends into the inner cavity of the valve; the pressure gauge is arranged at the bottom of the outer wall of the piston cylinder; the piston is slidably matched and inserted at the bottom of the inner cavity of the piston cylinder; the piston rod is arranged in the middle of the top end of the piston, the top end of the piston rod extends out an inner cavity of the piston cylinder; the spring cup joints in the outer wall of piston rod, and the bottom joint of spring is in the top of piston, and the top joint of spring is in the inner chamber top of piston cylinder.
Preferably, in order to amplify the pressure variation in the valve cavity, the pressure monitoring mechanism further comprises: the first connecting frame is arranged at the top end of the piston rod; the front end and the rear end of the first movable pulley are rotatably arranged at the bottom ends of the front side and the rear side of the inner cavity of the first connecting frame through bearings respectively; the front end and the rear end of the second movable pulley are respectively rotatably arranged at the top ends of the front side and the rear side of the inner cavity of the first connecting frame through bearings; the top end of the second connecting frame is arranged at the top end of the inner cavity of the extrusion frame; the front end and the rear end of the first fixed pulley are rotatably arranged at the bottom ends of the front side and the rear side of the inner cavity of the second connecting frame through bearings respectively; the front end and the rear end of the second fixed pulley are respectively rotatably arranged at the top ends of the front side and the rear side of the inner cavity of the second connecting frame through bearings; the supporting plate is arranged on the extrusion the top end of the inner cavity of the pressing frame; the front end and the rear end of the first reversing rod are respectively arranged at the bottom ends of the front side and the rear side of the inner cavity of the supporting plate; the front end and the rear end of the second reversing rod are respectively arranged at the top ends of the front side and the rear side of the inner cavity of the supporting plate; one end of the pull rope is arranged at the top end of the first connecting frame, and the outer wall of the pull rope is lapped on the outer walls of the first movable pulley, the second movable pulley, the first fixed pulley, the second fixed pulley, the first reversing rod and the second reversing rod.
Preferably, in order to indicate whether a change in pressure occurs in the valve cavity, the pressure monitoring mechanism further comprises: the monitoring plate is arranged at the left side of the bottom end of the inner cavity of the extrusion frame, and the other end of the pull rope can slidably extend into the top end of the inner cavity of the monitoring plate; the number of the second guide rods is two, and the upper and lower ends of the two second guide rods are respectively arranged at the left and right ends of the upper and lower sides of the inner cavity of the monitoring plate; the balancing weight is slidably matched and inserted into the top end of the inner cavity of the monitoring plate, the balancing weight is slidably sleeved on the top end of the outer wall of the second guide rod, and the other end of the pull rope is arranged in the middle of the top end of the balancing weight; the metal guide block is arranged at the front side of the balancing weight and can slidably extend out of the front side of the inner cavity of the monitoring plate; the sliding frame is matched with the bottom end of the outer wall of the monitoring plate in a sliding way; the number of the bolts is two, and the two bolts are respectively in threaded connection with the middle parts of the left side and the right side of the sliding frame; the rubber pad is arranged at the inner end of the bolt, and is contacted with the outer wall of the monitoring plate; the first contact is arranged on the right side of the top end of the sliding frame, and the position of the first contact corresponds to the position of the metal guide block; the second contact is arranged at the left side of the top end of the sliding frame, the position of the second contact corresponds to the position of the metal guide block, and a gap exists between the second contact and the first contact; the warning light sets up in the inner chamber bottom front side of extrusion frame, warning light and first contact electric connection.
Preferably, the booster pump conveys high-pressure gas into the inner cavity of the valve through the second air pipe, the pressure in the inner cavity of the valve is increased, and the piston is pushed under the action of the pressure to drive the piston rod and the first connecting frame to move upwards.
Preferably, the output end of the motor can drive the second belt pulley to rotate through the connecting rod, and then the rotary rod is driven to rotate by utilizing the cooperation between the second belt pulley, the belt and the first belt pulley, and the extrusion rod is driven to drive the clamping jaw to move outwards by utilizing the cooperation between the first driving groove and the limiting groove when the rotary plate rotates.
The pipeline valve pressure testing platform for the ship has the beneficial effects that:
1. according to the invention, the motor is utilized to drive the rotary rod to drive the rotary table to rotate through the cooperation between the first belt pulley, the second belt pulley and the belt, so that the extrusion rod can be driven to move inwards through the cooperation between the first driving groove and the limiting groove until the valve is clamped and fixed through the extrusion rod, the valve can be clamped and fixed through the clamping jaw by pulling the connecting plate through the cylinder to drive the extrusion rod to move downwards, and the valve can be positioned.
2. According to the invention, the hydraulic cylinder is utilized to push the extrusion frame to move downwards, the inner cavity of the valve can be sealed by utilizing the cooperation between the base and the extrusion frame, high-pressure gas can be conveyed into the inner cavity of the valve through the cooperation among the booster pump, the first gas pipe and the second gas pipe, and pressure maintaining operation is carried out, so that the valve can be subjected to pressure test, the piston is driven by the pressure increase in the inner cavity of the valve to move upwards by driving the piston rod, the extrusion spring is elastically deformed, meanwhile, the balancing weight can be driven by the gravity of the balancing weight to move downwards until the balancing weight moves to a proper position, the sliding frame is upwards slid, the first contact and the second contact are driven to contact with the metal guide, and a circuit is further formed to be conducted, and the warning lamp is driven to emit light.
3. The invention can monitor the pressure value in the valve inner cavity by utilizing the pressure gauge, when the gas leakage occurs in the valve inner cavity, the pressure in the valve inner cavity is promoted to be reduced, so that the piston can be pushed to drive the piston rod to move downwards slightly under the action of the elasticity of the spring.
4. According to the invention, a pulley block amplification mechanism is introduced, the mechanism skillfully converts the slight pressure change in the inner cavity of the valve into obvious mechanical displacement through a precisely designed pulley block structure, so that the sensitivity and intuitiveness of detection are greatly improved, even if the slight leakage occurs in a high-pressure environment, the detection result is more reliable through accurately capturing the amplified movement stroke, in addition, the platform does not need to rely on a detection mode which is easily affected by environment such as water immersion, the potential interference of external factors such as water quality and light on the detection result is effectively avoided, the cleaning and stability of the test environment are ensured, the complexity and cost of the detection operation are reduced, and the design of the invention not only remarkably improves the accuracy and efficiency of the pressure test of the pipeline valve for the ship, but also provides strong technical support for improving the safety performance of the ship.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic view of a positioning mechanism;
FIG. 4 is a schematic diagram of a pressure monitoring mechanism;
FIG. 5 is an exploded view of the pressure monitoring mechanism;
FIG. 6 is a schematic diagram of a monitor plate;
FIG. 7 is an exploded view of a monitor panel;
FIG. 8 is an enlarged view at A of FIG. 2;
FIG. 9 is an enlarged view at B of FIG. 3;
FIG. 10 is an enlarged view at C of FIG. 7;
fig. 11 is an enlarged view of D of fig. 7.
In the figure: 1. a base; 2. an air cavity; 3. a drive chamber; 4. a rotating chamber; 5. a limit groove; 6. a first chute; 7. a first stop lever; 8. a positioning mechanism; 81. a first guide bar; 82. a connecting plate; 83. a second chute; 84. a second limit rod; 85. a cylinder; 86. a slide block; 87. an extrusion rod; 88. a second driving groove; 89. a clamping jaw; 810. a second air pipe; 811. a rotating rod; 812. a first pulley; 813. a motor; 814. a second pulley; 815. a belt; 816. a connecting rod; 9. a pressure monitoring mechanism; 91. an extrusion frame; 92. a piston cylinder; 93. a pressure gauge; 94. a piston; 95. a piston rod; 96. a spring; 97. a first connection frame; 98. a first movable pulley; 99. a second movable pulley; 910. a second connecting frame; 911. a first fixed pulley; 912. a second fixed pulley; 913. a support plate; 914. a first reversing lever; 915. a second reversing lever; 916. a pull rope; 917. a monitoring board; 918. a second guide bar; 919. balancing weight; 920. a metal guide block; 921. a carriage; 922. a bolt; 923. a rubber pad; 924. a first contact; 925. a second contact; 926. a warning light; 10. a spool; 11. a booster pump; 12. a first air tube; 13. a turntable; 14. a first driving groove; 15. a valve; 16. a support frame; 17. and a hydraulic cylinder.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-11, the present invention provides a technical solution for a pipeline valve pressure testing platform for a ship, including: the device comprises a base 1, an air cavity 2, a driving cavity 3, a rotating cavity 4, a limit groove 5, a first sliding groove 6, a first limit rod 7, a positioning mechanism 8, a pressure monitoring mechanism 9, a sliding column 10, a booster pump 11, a first air pipe 12, a rotary table 13, a first driving groove 14, a valve 15, a supporting frame 16 and a hydraulic cylinder 17, wherein the air cavity 2 is arranged at the bottom of the base 1, the driving cavity 3 is arranged in the middle of the base 1, the rotating cavity 4 is arranged at the top of the base 1, four limit grooves 5 penetrating up and down are uniformly arranged at the upper side and the lower side of the inner cavity of the rotating cavity 4 along the circumferential direction, the first sliding grooves 6 are arranged at the front side and the rear side of the inner cavity of the limit groove 5 along the left-right direction, sealing rubber pads are arranged at the top end of the base 1 and used for storing the valve 15, the number of the first limit rods 7 is eight, the left and right sides of the eight first limit rods 7 are respectively arranged at the left side and right side of the inner cavity of the eight first sliding grooves 6, the first limiting rod 7 can prevent the sliding column 10 from separating from the inner cavity of the first sliding groove 6, the sliding column 10 is adaptively inserted into the inner cavity of the first sliding groove 6, the sliding column 10 is slidably sleeved on the outer wall of the first limiting rod 7, the sliding column 10 extends out of the inner cavity of the first sliding groove 6, when the extruding rod 87 moves up and down, the extruding rod 87 can be driven to rotate 180 degrees by utilizing the cooperation between the sliding column 10 and the second driving groove 88, the booster pump 11 is connected with the bottom end of the inner cavity of the air cavity 2 through screws, the booster pump 11 is in the prior art, the booster pump 11 is used for conveying high-pressure air to the inner cavity of the valve 15, one end of the first air pipe 12 is arranged at the air inlet of the booster pump 11, the other end of the first air pipe 12 extends out of the inner cavity 2, the rotary disc 13 is rotatably arranged in the inner cavity of the rotary cavity 4, the top end of the rotary disc 13 is provided with four first driving grooves 14 penetrating up and down along the circumferential equidistance, the position of the first driving groove 14 corresponds to the position of the limit groove 5, and is matched with the position of the limit groove 5, when the rotary table 13 rotates, the extrusion rod 87 can be driven to move, the positioning mechanism 8 is arranged in the inner cavity of the driving cavity 3, the positioning mechanism 8 is used for positioning the valve 15, the valve 15 is arranged at the top end of the base 1, the valve 15 is in the prior art, the support frame 16 is arranged at the top end of the base 1, the hydraulic cylinder 17 is arranged at the middle part of the top end of the inner cavity of the support frame 16, the hydraulic cylinder 17 is in the prior art, the hydraulic cylinder 17 is not in the middle part of the top end of the hydraulic cylinder 17 and is used for pushing the extrusion frame 91 to move downwards, so that the inner cavity of the valve 15 is sealed, the middle part of the top end of the pressure monitoring mechanism 9 is arranged at the bottom end of the hydraulic cylinder 17, the bottom end of the pressure monitoring mechanism 9 is in contact with the top end of the valve 15, and the pressure monitoring mechanism 9 is used for monitoring whether the pressure in the inner cavity of the valve 15 changes.
Preferably, the positioning mechanism 8 further includes: the first guide rod 81, the connecting plate 82, the second sliding chute 83, the second limiting rod 84, the air cylinder 85, the sliding block 86, the extruding rod 87, the second driving groove 88, the clamping jaw 89, the second air pipe 810, the rotating rod 811, the first belt pulley 812, the motor 813, the second belt pulley 814, the belt 815 and the connecting rod 816, the number of the first guide rods 81 is a plurality of, the upper ends and the lower ends of the plurality of first guide rods 81 are respectively circumferentially equidistant and arranged on the upper side and the lower side of the inner cavity of the driving cavity 3, the first guide rods 81 are used for limiting the connecting plate 82, the connecting plate 82 is slidably sleeved on the outer wall of the first guide rods 81, Four second sliding grooves 83 are formed in the top end of the connecting plate 82 at equal intervals along the circumferential direction, the positions of the second sliding grooves 83 correspond to the positions of the limiting grooves 5 and are matched with each other, the connecting plate 82 is used for pushing the extrusion rod 87 to move up and down, the left end and the right end of the second limiting rod 84 are respectively arranged on the left side and the right side of the inner cavity of the second sliding groove 83, the sliding block 86 is slidably matched and inserted into the inner cavity of the second sliding groove 83, the sliding block 86 is slidably sleeved on the outer wall of the second limiting rod 84, the bottom end of the extrusion rod 87 is rotatably arranged on the top end of the sliding block 86 through a bearing, the top end of the extrusion rod 87 slidably matched penetrates through the inner cavity of the limiting groove 5 and the first driving groove 14, And extends out of the top end of the base 1, the outer wall of the extrusion rod 87 is contacted with the valve 15, the top of the outer wall of the extrusion rod 87 is provided with a second driving groove 88, the sliding column 10 is slidably and adaptively inserted into the top end of the inner cavity of the second driving groove 88, the extrusion rod 87 is used for extruding and fixing the valve 15, the clamping jaw 89 is arranged at the top end of the extrusion rod 87, the four clamping jaws 89 are oppositely arranged, the bottom ends of the clamping jaws 89 are contacted with the valve 15, the bottom ends of the clamping jaws 89 are provided with sealing gaskets, the clamping jaws 89 are used for clamping and fixing the valve 15, the number of the air cylinders 85 is a plurality, the air cylinders 85 are circumferentially equidistantly arranged at the bottom end of the inner cavity of the driving cavity 3, The top of the cylinder 85 is arranged at the bottom end of the connecting plate 82, the cylinder 85 is in the prior art, the cylinder 85 is not described in detail, the cylinder 85 is used for pushing the connecting plate 82 to move up and down, one end of the second air pipe 810 is arranged at the air outlet of the booster pump 11, the other end of the second air pipe 810 penetrates through the middle parts of the inner cavities of the driving cavity 3 and the rotating cavity 4 to extend out of the top end of the base 1, the top end of the second air pipe 810 extends into the inner cavity of the valve 15, the second air pipe 810 is used for conveying high-pressure air into the inner cavity of the valve 15, the middle part of the outer wall of the rotating rod 811 is rotatably arranged at the middle part of the bottom end of the inner cavity of the rotating cavity 4 through a bearing, the bottom end of the rotating rod 811 rotatably extends into the inner cavity of the driving cavity 3, the second air pipe 810 is rotatably inserted into the inner cavity of the rotating rod 811, the rotating rod 13 is sleeved on the outer wall of the rotating rod 811 and locked by a jackscrew, the rotating rod 811 is used for driving the rotating rod 13 to rotate, the motor 813 is connected to the right side of the top end of the base 1 by a screw, the motor 813 is in the prior art, the motor 813 is a servo motor, the motor 813 is connected with a servo controller, which is not described in detail herein, the motor 813 is used for driving the rotating rod 811 to rotate, the bottom end of the connecting rod 816 is locked at the output end of the motor 813 by a coupling, the first belt pulley 812 is sleeved on the bottom end of the outer wall of the rotating rod 811, and locking, the second belt pulley 814 is sleeved on the outer wall of the connecting rod 816, and locking is performed, and two ends of the belt 815 are sleeved on the outer walls of the first belt pulley 812 and the second belt pulley 814 respectively.
Preferably, the pressure monitoring mechanism 9 further includes: the extrusion frame 91, the piston cylinder 92, the pressure gauge 93, the piston 94, the piston rod 95, the spring 96, the first connecting frame 97, the first movable pulley 98, the second movable pulley 99, the second connecting frame 910, the first fixed pulley 911, the second fixed pulley 912, the support plate 913, the first reversing lever 914, the second reversing lever 915, the pull rope 916, the monitoring plate 917, the second guide rod 918, the counterweight 919, the metal guide block 920, the sliding frame 921, the bolt 922, the rubber pad 923, the first contact 924, the second contact 925 and the warning lamp 926, The top of the extrusion frame 91 is arranged at the bottom of the hydraulic cylinder 17, the bottom of the extrusion frame 91 is contacted with the top of the valve 15, the bottom of the extrusion frame 91 is provided with a sealing rubber gasket, the extrusion frame 91 is used for extruding the valve 15 so as to seal the inner cavity of the valve 15, the piston cylinder 92 is arranged at the middle part of the bottom of the inner cavity of the extrusion frame 91, the bottom of the piston cylinder 92 extends out of the bottom of the extrusion frame 91, the bottom of the piston cylinder 92 extends into the inner cavity of the valve 15, the pressure gauge 93 is arranged at the bottom of the outer wall of the piston cylinder 92, the pressure gauge 93 is used for monitoring the pressure in the inner cavity of the piston cylinder 92 so as to monitor the pressure in the inner cavity of the valve 15, the slidable phase-fit plug-in of the piston 94 is inserted at the bottom of the inner cavity of the piston cylinder 92, The piston rod 95 is arranged in the middle of the top end of the piston 94, the top end of the piston rod 95 extends out of the inner cavity of the piston cylinder 92, the spring 96 is sleeved on the outer wall of the piston rod 95, the bottom end of the spring 96 is clamped on the top end of the piston 94, the top end of the spring 96 is clamped on the top end of the inner cavity of the piston cylinder 92, the spring 96 is a rotary spring and is elastically deformed after being extruded or stretched by external force, the spring 96 is restored to an initial state after the external force is removed, the spring 96 is used for pushing the piston 94 to move downwards, the first connecting frame 97 is arranged at the top end of the piston rod 95, the front end and the rear end of the first movable pulley 98 are rotatably arranged at the bottom ends of the front side and the rear side of the inner cavity of the first connecting frame 97 through bearings respectively, The front and rear ends of the second movable pulley 99 are rotatably arranged at the front and rear side top ends of the inner cavity of the first connecting frame 97 respectively through bearings, the top end of the second connecting frame 910 is arranged at the top end of the inner cavity of the extrusion frame 91, the front and rear ends of the first fixed pulley 911 are rotatably arranged at the front and rear side bottom ends of the inner cavity of the second connecting frame 910 respectively through bearings, the front and rear ends of the second fixed pulley 912 are rotatably arranged at the front and rear side top ends of the inner cavity of the second connecting frame 910 respectively through bearings, the cooperation among the first movable pulley 98, the second movable pulley 99, the first fixed pulley 911 and the second fixed pulley 912 can increase the up-and-down movement amplitude of the piston 94, And is shown by the up-and-down movement of the balancing weight 919, the supporting plate 913 is arranged at the top end of the inner cavity of the extrusion frame 91, the front and rear ends of the first reversing lever 914 are respectively arranged at the front and rear bottom ends of the inner cavity of the supporting plate 913, the front and rear ends of the second reversing lever 915 are respectively arranged at the front and rear top ends of the inner cavity of the supporting plate 913, one end of the pull rope 916 is arranged at the top end of the first connecting frame 97, the outer wall of the pull rope 916 is lapped on the outer walls of the first movable pulley 98, the second movable pulley 99, the first fixed pulley 911, the second fixed pulley 912, the first reversing lever 914 and the second reversing lever 915, the pull rope 916 is used for connecting the piston rod 95 and the balancing weight 919, the monitoring plate 917 is disposed at the left side of the bottom end of the inner cavity of the extrusion frame 91, the other end of the pull rope 916 slidably extends into the top end of the inner cavity of the monitoring plate 917, the number of the second guide rods 918 is two, the upper and lower ends of the two second guide rods 918 are respectively disposed at the left and right ends of the upper and lower sides of the inner cavity of the monitoring plate 917, the balancing weight 919 is slidably inserted into the top end of the inner cavity of the monitoring plate 917 in an adapting manner, the balancing weight 919 is slidably sleeved onto the top end of the outer wall of the second guide rod 918, the other end of the pull rope 916 is disposed in the middle of the top end of the balancing weight 919, when the piston rod 95 moves upwards, the left end of the pull rope 916 can be driven to move downwards under the gravity of the balancing weight 919 itself, The weight of the weight 919 is less than one fifth of the elastic force of the spring 96, the weight 919 is prevented from pulling the piston rod 95 to move upwards, the metal guide block 920 is arranged at the front side of the weight 919, the metal guide block 920 slidably extends out of the front side of the inner cavity of the monitoring plate 917, the metal guide block 920 is used for electrically connecting the first contact 924 and the second contact 925, the sliding frame 921 is slidably matched and connected to the bottom end of the outer wall of the monitoring plate 917, the number of the bolts 922 is two, the two bolts 922 are respectively connected to the middle parts of the left side and the right side of the sliding frame 921 in a screwed manner, the sliding frame 921 can be positioned by the bolts 922, The rubber pad 923 is arranged at the inner end of the bolt 922, the rubber pad 923 is contacted with the outer wall of the monitoring plate 917, the rubber pad 923 can increase the friction force between the rubber pad 923 and the monitoring plate 917, the first contact 924 is arranged at the right side of the top end of the sliding frame 921, the position of the first contact 924 corresponds to the position of the metal guide block 920, the second contact 925 is arranged at the left side of the top end of the sliding frame 921, the position of the second contact 925 corresponds to the position of the metal guide block 920, a gap exists between the second contact 925 and the first contact 924, the warning lamp 926 is arranged at the front side of the bottom end of the inner cavity of the extrusion frame 91, the warning lamp 926 is electrically connected with the first contact 924, The warning lamp 926 can visually indicate whether the gas in the cavity of the valve 15 is leaking.
The detailed connection means are known in the art, and the following mainly describes the working principle and process, and the specific work is as follows.
When in use, the hydraulic cylinder 17 is started, the hydraulic cylinder 17 is utilized to push the extrusion frame 91 to move downwards until the extrusion frame 91 and the base 1 are utilized to seal the inner cavity of the valve 15, the booster pump 11 is utilized to convey high-pressure gas into the inner cavity of the valve 15 through the second air pipe 810, the pressure in the inner cavity of the valve 15 is increased, the piston 94 can be pushed under the action of the pressure to drive the piston rod 95 and the first connecting frame 97 to move upwards, the extrusion spring 96 is elastically deformed, meanwhile, the piston rod 95 can be moved upwards to drive the balancing weight 919 to move downwards under the gravity factor of the balancing weight 919, the pressure value in the inner cavity of the valve 15 is read in real time by the pressure gauge 93, After the proper pressure value is reached in the inner cavity of the valve 15, the inner cavity of the valve 15 is subjected to pressure maintaining operation, at the moment, the balancing weight 919 drives the metal guide block 920 to move downwards to a proper position, the sliding frame 921 is slid upwards along the outer wall of the monitoring plate 917 until the first contact 924 and the second contact 925 are enabled to be contacted with the metal guide block 920, the bolt 922 is rotated, the rubber pad 923 is driven to move inwards by the bolt 922 until the position of the sliding frame 921 is fixed by the friction force between the rubber pad 923 and the monitoring plate 917, the second contact 925 is connected with an external power supply, and then the circuit is enabled to be conducted, The warning lamp 926 is caused to emit light, if the gas in the inner cavity of the valve 15 leaks, the pressure in the inner cavity of the valve 15 can be reduced, and then the piston 94 can be pushed to move downwards under the action of the elastic force of the spring 96, the piston 94 drives the piston rod 95 and the first connecting frame 97 to move downwards, the first connecting frame 97 can pull the balancing weight 919 to move upwards through the pull rope 916, and the movable pulley pulls the article to save labor, but the distance is further enlarged by utilizing the cooperation among the first movable pulley 98, the second movable pulley 99, the first fixed pulley 911 and the second fixed pulley 912, And through the upward movement of the balancing weight 919, the balancing weight 919 drives the metal guide block 920 to move upwards to enable the metal guide block 920 to be separated from the first contact 924 and the second contact 925, so that a circuit is broken, the warning lamp 926 is extinguished, and further, the inner cavity of the valve 15 can be visually represented through the warning lamp 926 to leak, when the pressure test of the valve 15 is finished, the air cylinder 85 is started, the air cylinder 85 is used for pushing the connecting plate 82 to drive the extrusion rod 87 to move upwards, the extrusion rod 87 can drive the clamping jaw 89 to move upwards, and simultaneously the extrusion rod 87 moves upwards, the extrusion rod 87 can be driven to rotate by utilizing the cooperation between the sliding column 10 and the second driving groove 88 until the sliding column 10 moves to the bottom end of the inner cavity of the second driving groove 88, the extrusion rod 87 drives the clamping jaw 89 to rotate 180 degrees at the moment, the motor 813 is started, the output end of the motor 813 is utilized to drive the second belt pulley 814 to rotate through the connecting rod 816, the turntable 13 can be driven to rotate through the rotating rod 811 by utilizing the cooperation among the second belt pulley 814, the belt 815 and the first belt pulley 812, the turntable 13 can be driven to move outwards by utilizing the cooperation between the first driving groove 14 and the limiting groove 5 by utilizing the rotation of the turntable 13, And drive the slider 86 to move outwards in the inner cavity of the second chute 83, and simultaneously utilize the second driving groove 88 to drive the slide column 10 to move outwards along the inner cavity of the first chute 6 until moving to a proper position, so as to release the clamping and fixing of the valve 15, and further remove the valve 15, if the valve 15 needs to be subjected to pressure test again, the valve 15 can be fixed at the top end of the base 1 by moving in the opposite direction.
In summary, the pulley block amplifying mechanism is introduced, the mechanism skillfully converts the slight pressure change in the inner cavity of the valve 15 into obvious mechanical displacement through the precisely designed pulley block structure, the sensitivity and intuitiveness of detection are greatly improved, even if tiny leakage occurs in a high-pressure environment, the detection result is more reliable through accurately capturing the amplified moving stroke, in addition, the platform does not need to rely on a detection mode which is easily affected by environment such as water immersion, the potential interference of external factors such as water quality and light on the detection result is effectively avoided, the cleaning and stability of a test environment are ensured, the complexity and cost of detection operation are reduced, and the design of the invention not only remarkably improves the accuracy and efficiency of the pressure test of the pipeline valve 15 for ships, but also provides strong technical support for improving the safety performance of ships.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A pipeline valve pressure test platform for a ship, comprising:
The device comprises a base (1), wherein an air cavity (2) is formed in the bottom of the base (1), a driving cavity (3) is formed in the middle of the base (1), a rotating cavity (4) is formed in the top of the base (1), four limit grooves (5) penetrating up and down are formed in the upper side and the lower side of an inner cavity of the rotating cavity (4) at equal intervals along the circumferential direction, first sliding grooves (6) are formed in the front side and the rear side of the inner cavity of the limit grooves (5) along the left-right direction, and sealing rubber pads are arranged at the top end of the base (1);
The number of the first limiting rods (7) is eight, and the left and right ends of the eight first limiting rods (7) are respectively arranged on the left and right sides of the inner cavity of the eight first sliding grooves (6);
The sliding column (10) is inserted into the inner cavity of the first sliding groove (6) in a matching way, the sliding column (10) is sleeved on the outer wall of the first limiting rod (7) in a sliding way, and the sliding column (10) extends out of the inner cavity of the first sliding groove (6);
The booster pump (11) is connected with the bottom end of the inner cavity of the air cavity (2) through screws;
The first air pipe (12), one end of the first air pipe (12) is arranged at the air inlet of the booster pump (11), and the other end of the first air pipe (12) extends out of the inner cavity of the air cavity (2);
The rotary table (13), the rotatable setting of rotary table (13) is in the inner chamber of rotatory chamber (4), the top of rotary table (13) is along circumference equidistant first drive groove (14) of seting up four and down penetrations, the position in first drive groove (14) corresponds with the position in spacing groove (5), and assorts;
The positioning mechanism (8) is arranged in the inner cavity of the driving cavity (3);
The valve (15) is arranged at the top end of the base (1);
the support frame (16), the said support frame (16) is set up in the top of the base (1);
The hydraulic cylinder (17) is arranged in the middle of the top end of the inner cavity of the supporting frame (16);
The middle part of the top end of the pressure monitoring mechanism (9) is arranged at the bottom end of the hydraulic cylinder (17), and the bottom end of the pressure monitoring mechanism (9) is contacted with the top end of the valve (15);
The positioning mechanism (8) comprises:
the first guide rods (81), the number of the first guide rods (81) is a plurality, and the upper ends and the lower ends of the first guide rods (81) are circumferentially equidistant and arranged on the upper side and the lower side of the inner cavity of the driving cavity (3) respectively;
The connecting plate (82), the connecting plate (82) is slidably sleeved on the outer wall of the first guide rod (81), four second sliding grooves (83) are formed in the top end of the connecting plate (82) at equal intervals along the circumferential direction, and the positions of the second sliding grooves (83) correspond to the positions of the limiting grooves (5) and are matched with each other;
The left end and the right end of the second limiting rod (84) are respectively arranged at the left side and the right side of the inner cavity of the second sliding groove (83);
The sliding block (86) is slidably matched and inserted into the inner cavity of the second chute (83), and the sliding block (86) is slidably sleeved on the outer wall of the second limiting rod (84);
The bottom end of the extrusion rod (87) is rotatably arranged at the top end of the sliding block (86) through a bearing, the top end of the extrusion rod (87) slidably and adaptively penetrates through the inner cavity of the limiting groove (5) and the first driving groove (14) and extends out of the top end of the base (1), the outer wall of the extrusion rod (87) is in contact with the valve (15), the top of the outer wall of the extrusion rod (87) is provided with the second driving groove (88), and the slidably and adaptively inserted into the top end of the inner cavity of the second driving groove (88);
The clamping jaws (89) are arranged at the top end of the extrusion rod (87), the four clamping jaws (89) are oppositely arranged, the bottom ends of the clamping jaws (89) are in contact with the valve (15), and sealing gaskets are arranged at the bottom ends of the clamping jaws (89);
The number of the air cylinders (85) is a plurality, the air cylinders (85) are circumferentially equidistantly arranged at the bottom end of the inner cavity of the driving cavity (3), and the top ends of the air cylinders (85) are arranged at the bottom end of the connecting plate (82);
The second air pipe (810), one end of the second air pipe (810) is arranged at the air outlet of the booster pump (11), the other end of the second air pipe (810) penetrates through the middle parts of the inner cavities of the driving cavity (3) and the rotating cavity (4) to extend out of the top end of the base (1), and the top end of the second air pipe (810) extends into the inner cavity of the valve (15);
The middle part of the outer wall of the rotating rod (811) is rotatably arranged in the middle of the bottom end of the inner cavity of the rotating cavity (4) through a bearing, the bottom end of the rotating rod (811) rotatably extends into the inner cavity of the driving cavity (3), the second air pipe (810) is rotatably inserted into the inner cavity of the rotating rod (811), and the rotating disc (13) is sleeved on the outer wall of the rotating rod (811) and locked through a jackscrew;
the motor (813) is connected to the right side of the top end of the base (1) through screws;
The bottom end of the connecting rod (816) is locked at the output end of the motor (813) through a coupler;
The first belt pulley (812) is sleeved at the bottom end of the outer wall of the rotating rod (811) and locked;
the second belt pulley (814) is sleeved on the outer wall of the connecting rod (816) and locked;
And the two ends of the belt (815) are respectively sleeved on the outer walls of the first belt pulley (812) and the second belt pulley (814).
2. A pipeline valve pressure testing platform for a vessel according to claim 1, wherein the pressure monitoring mechanism (9) comprises:
The extrusion frame (91), the top end of the extrusion frame (91) is arranged at the bottom end of the hydraulic cylinder (17), the bottom end of the extrusion frame (91) is contacted with the top end of the valve (15), and a sealing rubber pad is arranged at the bottom end of the extrusion frame (91);
the piston cylinder (92) is arranged in the middle of the bottom end of the inner cavity of the extrusion frame (91), the bottom end of the piston cylinder (92) extends out of the bottom end of the extrusion frame (91), and the bottom end of the piston cylinder (92) extends into the inner cavity of the valve (15);
the pressure gauge (93) is arranged at the bottom of the outer wall of the piston cylinder (92);
The piston (94) is slidably and adaptively inserted into the bottom of the inner cavity of the piston cylinder (92);
The piston rod (95) is arranged in the middle of the top end of the piston (94), and the top end of the piston rod (95) extends out of the inner cavity of the piston cylinder (92);
The spring (96), spring (96) cup joints in the outer wall of piston rod (95), the bottom joint of spring (96) is in the top of piston (94), the top joint of spring (96) is in the inner chamber top of piston tube (92).
3. A pipeline valve pressure testing platform for a vessel according to claim 2, wherein the pressure monitoring mechanism (9) further comprises:
the first connecting frame (97), the said first connecting frame (97) is set up in the top of the piston rod (95);
The front end and the rear end of the first movable pulley (98) are rotatably arranged at the bottom ends of the front side and the rear side of the inner cavity of the first connecting frame (97) through bearings respectively;
the front end and the rear end of the second movable pulley (99) are rotatably arranged at the top ends of the front side and the rear side of the inner cavity of the first connecting frame (97) through bearings respectively;
the top end of the second connecting frame (910) is arranged at the top end of the inner cavity of the extrusion frame (91);
The front end and the rear end of the first fixed pulley (911) are rotatably arranged at the bottom ends of the front side and the rear side of the inner cavity of the second connecting frame (910) through bearings respectively;
the front end and the rear end of the second fixed pulley (912) are rotatably arranged at the top ends of the front side and the rear side of the inner cavity of the second connecting frame (910) through bearings respectively;
A supporting plate (913), wherein the supporting plate (913) is arranged at the top end of the inner cavity of the extrusion frame (91);
The front end and the rear end of the first reversing rod (914) are respectively arranged at the bottom ends of the front side and the rear side of the inner cavity of the supporting plate (913);
the front end and the rear end of the second reversing rod (915) are respectively arranged at the top ends of the front side and the rear side of the inner cavity of the supporting plate (913);
The stay cord (916), the one end of stay cord (916) sets up in the top of first link (97), the outer wall overlap joint of stay cord (916) is in the outer wall of first movable pulley (98), second movable pulley (99), first fixed pulley (911), second fixed pulley (912), first switching-over pole (914) and second switching-over pole (915).
4. A pipeline valve pressure testing platform for a vessel according to claim 3, wherein the pressure monitoring mechanism (9) further comprises:
The monitoring plate (917) is arranged at the left side of the bottom end of the inner cavity of the extrusion frame (91), and the other end of the pull rope (916) can slidably extend into the top end of the inner cavity of the monitoring plate (917);
The number of the second guide rods (918) is two, and the upper and lower ends of the two second guide rods (918) are respectively arranged at the left and right ends of the upper and lower sides of the inner cavity of the monitoring plate (917);
the balancing weight (919) is slidably matched and inserted into the top end of the inner cavity of the monitoring plate (917), the balancing weight (919) is slidably sleeved on the top end of the outer wall of the second guide rod (918), and the other end of the pull rope (916) is arranged in the middle of the top end of the balancing weight (919);
A metal guide block (920), wherein the metal guide block (920) is arranged at the front side of the balancing weight (919), and the metal guide block (920) slidably extends out of the front side of the inner cavity of the monitoring plate (917);
a sliding frame (921), wherein the sliding frame (921) is slidably matched and connected to the bottom end of the outer wall of the monitoring plate (917);
the number of the bolts (922) is two, and the two bolts (922) are respectively in threaded connection with the middle parts of the left side and the right side of the sliding frame (921);
A rubber pad (923), wherein the rubber pad (923) is arranged at the inner end of the bolt (922), and the rubber pad (923) is contacted with the outer wall of the monitoring plate (917);
A first contact (924), wherein the first contact (924) is arranged on the right side of the top end of the sliding frame (921), and the position of the first contact (924) corresponds to the position of the metal guide block (920);
a second contact (925), wherein the second contact (925) is arranged at the left side of the top end of the sliding frame (921), the position of the second contact (925) corresponds to the position of the metal guide block (920), and a gap exists between the second contact (925) and the first contact (924);
the warning lamp (926), warning lamp (926) set up in the inner chamber bottom front side of extrusion frame (91), warning lamp (926) and first contact (924) electric connection.
5. The pipeline valve pressure testing platform for the ship according to claim 4, wherein the booster pump (11) is used for conveying high-pressure gas into the inner cavity of the valve (15) through the second gas pipe (810), the pressure in the inner cavity of the valve (15) is increased, and the piston (94) is pushed under the action of the pressure to drive the piston rod (95) and the first connecting frame (97) to move upwards.
6. The pipeline valve pressure testing platform for the ship according to claim 5, wherein the output end of the motor (813) can drive the second belt pulley (814) to rotate through the connecting rod (816), further the rotary rod (811) is driven to rotate by the aid of cooperation among the second belt pulley (814), the belt (815) and the first belt pulley (812), the rotary plate (13) is driven to rotate by the aid of cooperation among the first driving groove (14) and the limiting groove (5) when the rotary plate (13) rotates, and the extruding rod (87) is driven to drive the clamping jaw (89) to move outwards.
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| CN202411260606.9A CN118776777B (en) | 2024-09-10 | 2024-09-10 | Pipeline valve pressure test platform for ship |
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| CN202411260606.9A CN118776777B (en) | 2024-09-10 | 2024-09-10 | Pipeline valve pressure test platform for ship |
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| CN118999898B (en) * | 2024-10-23 | 2025-01-24 | 朝阳市加华电子有限公司 | A stress testing platform |
| CN119915465A (en) * | 2025-04-01 | 2025-05-02 | 茗鹰实业发展有限公司 | A kind of endurance fatigue test equipment for automobile brake pipe joints |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520677A (en) * | 2019-01-23 | 2019-03-26 | 中汽研汽车检验中心(武汉)有限公司 | Valve detecting system and valve detection testing stand |
| CN214655152U (en) * | 2021-04-12 | 2021-11-09 | 新余钢铁股份有限公司 | Lifting position detection device for heating furnace tapping machine |
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| KR101297058B1 (en) * | 2013-05-23 | 2013-08-14 | 주식회사 비엠티 | A test device for a valve pressure |
| CN216815916U (en) * | 2022-03-09 | 2022-06-24 | 国家石油天然气管网集团有限公司 | Valve leakage test testing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520677A (en) * | 2019-01-23 | 2019-03-26 | 中汽研汽车检验中心(武汉)有限公司 | Valve detecting system and valve detection testing stand |
| CN214655152U (en) * | 2021-04-12 | 2021-11-09 | 新余钢铁股份有限公司 | Lifting position detection device for heating furnace tapping machine |
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