A detection tool for high-temperature-resistant valve seal

Abstract

The utility model relates to valve detection equipment technical field, concretely relates to a kind of detection tooling of high-temperature-resistant valve seal, comprising: protective shell, detection mechanism and positioner, round hole and access hole are set up on protective shell, and the inside rotationally connected of access hole has access door, and detection mechanism is set on protective shell.The utility model in the present application, by being provided with detection mechanism on protective shell, and by the one end of valve and conical shell and rubber sleeve two plug connections, and by starting electric cylinder one to stretch, so that conical block one and rubber sleeve one and the other end of valve plug connection, to carry out plugging to the both ends of valve, then utilize water injection component to inject water to valve, when a certain amount of water is injected in valve, the pressure in valve will act on pressure sensor, when closing water pump and electric control valve one, the change of pressure sensor value is observed, so as to judge whether valve appears leakage, and then the sealing property of high-temperature-resistant valve is rapidly detected.

Description

Technical Field

[0001] This utility model relates to the technical field of valve testing equipment, specifically a testing fixture for high-temperature resistant valve seals. Background Technology

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the transported media. High-temperature resistant valves are special valves that can maintain reliable sealing, mechanical strength, and operational performance for extended periods under high-temperature conditions. They are widely used in high-temperature and high-pressure pipeline systems in industries such as petroleum, chemical, and thermal power plants. Furthermore, in the production and processing of high-temperature resistant valves, quality inspection is typically required to ensure performance, safety, and reliability. Valve quality inspection includes sealing performance testing.

[0003] Current methods for sealing high-temperature valves typically involve sealing the valve to a testing device, injecting gas at a certain pressure into the valve, and then detecting changes in the pressure using a pressure testing device to determine if a leak exists. However, while this technology can identify leaks by measuring pressure changes, it's not convenient for pinpointing the exact location of the leak. Furthermore, it can only test valves of a single size, or requires replacing different components to test different valves, which can negatively impact testing efficiency and reduces its practicality. Utility Model Content

[0004] The purpose of this invention is to provide a testing fixture for high-temperature resistant valve seals to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A testing fixture for high-temperature resistant valve seals, comprising:

[0007] The protective shell has a round hole and an inspection port, and the inspection port is rotatably connected to an inspection door.

[0008] The testing mechanism, mounted on the protective casing, is used to test the sealing performance of high-temperature resistant valves.

[0009] The adjustment mechanism is installed on the testing mechanism.

[0010] Furthermore, the inspection door is equipped with heat dissipation holes, and a filter screen is fixedly connected inside the heat dissipation holes.

[0011] Furthermore, the testing institutions include:

[0012] A circular shell is rotatably connected to the top of a protective shell. The circular shell is opposite to a circular hole. A limit component and a water injection component are provided on the circular shell, and a sealing component is provided on the top of the circular shell.

[0013] A conical shell is fixed to the top of the round shell, and a rubber sleeve is fitted and fixed to the outside of the conical shell.

[0014] Preferably, the sealing component includes:

[0015] The support base is fixedly connected to the cylindrical shell;

[0016] A rectangular shell is connected and fixed to the top of the support base. An electric cylinder is fixed to the inner top surface of the rectangular shell, and a movable shell is fixed to the output end of the electric cylinder. The movable shell is slidably connected to the inside of the rectangular shell. A conical block is fixed to the bottom of the movable shell, and a rubber sleeve is fixed to the outer side of the conical block. A pressure sensor is embedded and fixed to the bottom of the conical block.

[0017] Preferably, the water injection component includes:

[0018] The water tank is fixedly connected to the inner bottom surface of the protective shell;

[0019] A water pump is fixedly connected to the inner bottom surface of the protective shell. The pump's pumping end is connected to and fixedly connected to a first delivery pipe, which is also connected to and fixedly connected to a water tank. The pump's outlet end is connected to and fixedly connected to a second delivery pipe. One end of the second delivery pipe has a circular hole and extends into the interior of the circular shell through a circular hole. One end of the second delivery pipe is rotatably connected to the middle position of the bottom of the circular shell. One end of the second delivery pipe is connected to and fixedly connected to an electric control valve, which passes through the side wall of the circular shell and extends into the interior of the conical shell. The second delivery pipe is connected to and fixedly connected to an electric control valve, and one end of the second electric control valve is connected to and fixedly connected to a third delivery pipe, which is also connected to and fixedly connected to the top of the water tank.

[0020] Preferably, the limiting component includes:

[0021] A connecting shell is located on the outside of the conical shell. Both ends of the connecting shell are rotatably connected to rotating blocks. One end of the rotating block passes through the side wall of the connecting shell and is fixedly connected to a screw. A movable plate is screwed to the outside of the screw and is slidably connected to the connecting shell. A second conical block is fixedly connected to the movable plate.

[0022] Multiple electric cylinders are fixedly connected to the inner bottom surface of the circular shell at their bottom, and the output ends of the multiple electric cylinders are fixedly connected to the connecting shell through the side wall of the circular shell.

[0023] Furthermore, the positioning mechanism includes:

[0024] The geared motor is fixedly connected to the protective housing;

[0025] The gear is sleeved and fixed to the output end of the geared motor;

[0026] A retaining ring is located inside the protective shell. The top of the retaining ring is fixed to the bottom of the circular shell. A toothed ring is sleeved and fixed on the outside of the retaining ring, and the toothed ring meshes with a gear.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] 1. By setting a detection mechanism on the protective shell, and by inserting one end of the valve into the conical shell and rubber sleeve 2, and by activating electric cylinder 1 to extend it, the conical block 1 and rubber sleeve 1 are inserted into the other end of the valve, thereby sealing both ends of the valve. Then, water is injected into the valve using the water injection component. When a certain amount of water is injected into the valve, the pressure inside the valve will act on the pressure sensor. When the water pump and electric control valve 1 are closed, the change in the pressure sensor value is observed, which makes it easy to determine whether the valve is leaking. This allows for rapid detection of the sealing performance of the high-temperature resistant valve. Furthermore, by adjusting the height of the conical block 1 and rubber sleeve 1, and by utilizing the conical block 1, rubber sleeve 1, conical shell, and rubber sleeve 2, the high-temperature resistant valve sealing detection fixture can be applied to high-temperature resistant valves of different specifications, thereby improving the practicality of the high-temperature resistant valve sealing detection fixture.

[0029] 2. By setting a limit component on the round shell and rotating two rotating blocks to make the screw rotate, while the moving plate is slidably connected to the connecting shell, the moving plate and the second conical block can move. When the second conical block is aligned with the bolt hole of the flange on the high-temperature valve, the second electric cylinder is activated to push the connecting shell, the moving plate and the second conical block upward, so that the second conical block is inserted into the corresponding bolt hole. The limit component can limit the high-temperature valve during testing to prevent it from moving during testing, which could cause the valve to leak and affect the accuracy of the test results.

[0030] 3. By setting an adjustment mechanism on the detection mechanism and starting the reduction motor, the reduction motor drives the gear to rotate. The gear meshes with the gear ring, thereby causing the gear ring, fixed ring, round shell, conical shell, rubber sleeve, sealing assembly and high-temperature valve to rotate. This makes it easier to find the leakage point of the high-temperature valve and makes it more convenient to use. Attached Figure Description

[0031] Figure 1-2 This is a schematic diagram of the overall structure of this utility model;

[0032] Figure 3 This is a schematic diagram showing the positional relationship between the protective shell and the inspection door in this utility model;

[0033] Figure 4 This is a schematic diagram of the detection mechanism structure in this utility model;

[0034] Figure 5 This is a schematic diagram showing the positional relationship between the circular shell and the conical shell in this utility model;

[0035] Figure 6 This is a schematic diagram showing the positional relationship between the connecting shell and the movable plate in this utility model;

[0036] Figure 7 This is a schematic diagram of the positioning mechanism in this utility model.

[0037] In the diagram: 100, protective shell; 101, round hole; 102, inspection port; 110, inspection door; 111, filter screen; 200, testing mechanism; 210, round shell; 220, water tank; 230, water pump; 231, delivery pipe one; 232, delivery pipe two; 233, electric control valve one; 234, electric control valve two; 235, delivery pipe three; 240, support base; 250, rectangular shell; 251, electric cylinder one; 252. Moving shell; 253. Conical block one; 254. Rubber sleeve one; 255. Pressure sensor; 260. Connecting shell; 261. Rotating block; 262. Screw; 263. Moving plate; 264. Conical block two; 270. Conical shell; 271. Rubber sleeve two; 280. Electric cylinder two; 300. Adjustment mechanism; 310. Gear motor; 320. Gear; 330. Fixed ring; 331. Gear ring. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Please see Figure 1-7 In this embodiment of the present invention, a testing fixture for the sealing of a high-temperature resistant valve includes: a protective shell 100, a testing mechanism 200, and an adjusting mechanism 300. The protective shell 100 has a circular hole 101 and an inspection port 102, and an inspection door 110 is rotatably connected inside the inspection port 102. The testing mechanism 200 is disposed on the protective shell 100 and is used to test the sealing performance of the high-temperature resistant valve. The adjusting mechanism 300 is disposed on the testing mechanism 200.

[0040] Specifically, the detection mechanism 200 facilitates the load-bearing and fixing of the high-temperature resistant valve and can test the sealing performance of high-temperature resistant valves of different specifications. If the high-temperature resistant valve leaks, the adjusting mechanism 300 can be used to rotate the high-temperature resistant valve, thereby making it easy to quickly find the leak point. In use, the detection mechanism 200 and the adjusting mechanism 300 can be easily inspected and maintained by opening the inspection door 110 and the inspection port 102.

[0041] Example 1

[0042] like Figure 3-5As shown, in this embodiment, the detection mechanism 200 includes: a circular shell 210 and a conical shell 270. The circular shell 210 is rotatably connected to the top of the protective shell 100. The circular shell 210 is opposite to the circular hole 101. A limit component and a water injection component are provided on the circular shell 210, and a sealing component is provided on the top of the circular shell 210. The conical shell 270 is fixed to the top of the circular shell 210, and a rubber sleeve 271 is sleeved and fixed on the outer side of the conical shell 270. The sealing component includes: a support base 240 and a rectangular... Shell 250, support base 240 are fixedly connected to circular shell 210, rectangular shell 250 is fixedly connected to the top of support base 240, electric cylinder 251 is fixedly connected to the inner top surface of rectangular shell 250, and movable shell 252 is fixedly connected to the output end of electric cylinder 251. Movable shell 252 is slidably connected to the inside of rectangular shell 250. Conical block 253 is fixedly connected to the bottom of movable shell 252, and rubber sleeve 254 is fixedly fitted to the outer side of conical block 253. An embedded pressure sensor 255 is fixedly mounted. The water injection assembly includes a water tank 220 and a water pump 230. The water tank 220 is fixedly connected to the inner bottom surface of the protective shell 100, and the water pump 230 is fixedly connected to the inner bottom surface of the protective shell 100. The pumping end of the water pump 230 is connected to and fixedly mounted with a first delivery pipe 231, which is also connected to and fixedly mounted with the water tank 220. The outlet end of the water pump 230 is connected to and fixedly mounted with a second delivery pipe 232, and one end of the second delivery pipe 232 has a circular hole 101 and extends along the side wall of the circular shell 210. The second conveying pipe 232 extends into the interior of the circular shell 210. One end of the second conveying pipe 232 is rotatably connected to the middle position of the bottom of the circular shell 210. One end of the second conveying pipe 232 is connected to and fixed with an electric control valve 233. One end of the electric control valve 233 passes through the side wall of the circular shell 210 and extends into the interior of the conical shell 270. An electric control valve 234 is connected to and fixed on the second conveying pipe 232. One end of the electric control valve 234 is connected to and fixed with a third conveying pipe 235. The third conveying pipe 235 is connected to and fixed to the top of the water tank 220.

[0043] In this embodiment, the high-temperature resistant valve is placed on the rubber sleeve 271, so that one end of the valve is inserted into the conical shell 270 and the rubber sleeve 271, making the one end of the valve press against the rubber sleeve 271. The electric cylinder 251 is then activated to extend the valve, causing the movable shell 252, the conical block 253, and the rubber sleeve 254 to move downwards. This allows the conical block 253 and the rubber sleeve 254 to be inserted into the other end of the valve, and the rubber sleeve 254 to press against the other end of the valve, thus sealing both ends of the valve. Then, the water pump 230 is activated and the electric control valve 233 is opened. The water pump 230, the delivery pipe 231, the delivery pipe 232, and the electric control valve 233 facilitate the delivery of water from the water tank 220 to the inside of the conical shell 270, thereby injecting water into the valve. When a certain amount of water is injected into the valve... After the water is pumped, the pressure inside the valve acts on the pressure sensor 255. When the water pump 230 and the first solenoid valve 233 are turned off, the change in the pressure sensor 255 value is observed to determine whether the valve is leaking, thus enabling a rapid test of the sealing performance of the high-temperature valve. After the test is completed, the water inside the valve is allowed to flow back into the water tank 220 by opening the first solenoid valve 233 and the second solenoid valve 234, allowing the water to be recycled and preventing water waste. Furthermore, by adjusting the height of the first conical block 253 and the first rubber sleeve 254, and by utilizing the first conical block 253, the first rubber sleeve 254, the conical shell 270, and the second rubber sleeve 271, the high-temperature valve sealing test fixture can be applied to high-temperature valves of different specifications, thereby improving the practicality of the high-temperature valve sealing test fixture.

[0044] like Figure 6 As shown, in this embodiment, the limiting component includes: a connecting shell 260 and multiple electric cylinders 280. The connecting shell 260 is disposed on the outside of the conical shell 270. Both ends of the connecting shell 260 are rotatably connected to rotating blocks 261. One end of the rotating block 261 passes through the side wall of the connecting shell 260 and is fixedly connected to a screw 262. The outside of the screw 262 is screwed to a moving plate 263, and the moving plate 263 is slidably connected to the connecting shell 260. A conical block 264 is fixedly connected to the moving plate 263. The bottom of the multiple electric cylinders 280 is fixedly connected to the inner bottom surface of the circular shell 210. The output ends of the multiple electric cylinders 280 all pass through the side wall of the circular shell 210 and are fixedly connected to the connecting shell 260.

[0045] In practice, rotating the two rotating blocks 261 causes the screw 262 to rotate, while the moving plate 263 is slidably connected to the connecting shell 260, thereby moving the moving plate 263 and the second conical block 264. When the second conical block 264 is aligned with the bolt hole of the flange on the high-temperature valve, the second electric cylinder 280 is activated, which pushes the connecting shell 260, the moving plate 263, and the second conical block 264 upward, so that the second conical block 264 is inserted into the corresponding bolt hole. The limiting component can then limit the high-temperature valve during testing, preventing it from moving and leaking, which would affect the accuracy of the test results.

[0046] Example 2

[0047] Based on Example 1, in order to quickly locate the leakage point of the high-temperature resistant valve.

[0048] like Figure 7 As shown, in this embodiment, the inspection door 110 is provided with heat dissipation holes, and a filter screen 111 is fixedly connected inside the heat dissipation holes. The adjustment mechanism 300 includes: a reduction motor 310, a gear 320 and a fixing ring 330. The reduction motor 310 is fixedly connected to the protective shell 100. The gear 320 is sleeved and fixed to the output end of the reduction motor 310. The fixing ring 330 is disposed inside the protective shell 100. The top of the fixing ring 330 is fixedly connected to the bottom of the round shell 210. A toothed ring 331 is sleeved and fixed to the outside of the fixing ring 330, and the toothed ring 331 meshes with the gear 320.

[0049] In practical implementation, heat dissipation holes facilitate rapid heat dissipation for the geared motor 310 and water pump 230, and filter screen 111 prevents foreign objects from entering the interior of the protective shell 100 when the inspection door 110 is closed. When the detection mechanism 200 detects a leak in the high-temperature resistant valve, the geared motor 310 is started, which drives the gear 320 to rotate. The gear 320 meshes with the gear ring 331, causing the gear ring 331, the fixing ring 330, the round shell 210, the conical shell 270, the rubber sleeve 271, the sealing assembly, and the high-temperature resistant valve to rotate. This facilitates the initial location of the leak point in the high-temperature resistant valve. The fixing ring 330 stops after rotating one revolution and then begins to reverse one revolution, preventing the wiring harness connected to the detection mechanism 200 from becoming tangled during use.

[0050] In order to facilitate the operation of the utility model by the operator, a PLC controller can be set up, and the water pump 230, the first electric control valve 233, the second electric control valve 234, the first electric cylinder 251, the pressure sensor 255, the second electric cylinder 280 and the geared motor 310 are all electrically connected to the PLC controller. The PLC controller is existing technology and will not be described in detail here.

[0051] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A testing fixture for high-temperature resistant valve seals, characterized in that, include: A protective shell (100) is provided with a round hole (101) and an inspection port (102), and an inspection door (110) is rotatably connected inside the inspection port (102); The testing mechanism (200) is installed on the protective shell (100) and is used to test the sealing performance of the high-temperature resistant valve; The adjustment mechanism (300) is disposed on the detection mechanism (200).

2. The testing fixture for high-temperature resistant valve seals according to claim 1, characterized in that, The inspection door (110) is provided with heat dissipation holes, and a filter screen (111) is fixedly connected inside the heat dissipation holes.

3. The testing fixture for high-temperature resistant valve seals according to claim 1, characterized in that, The testing organization (200) includes: A circular shell (210) is rotatably connected to the top of the protective shell (100). The circular shell (210) is opposite to the circular hole (101). A limit component and a water injection component are provided on the circular shell (210), and a sealing component is provided on the top of the circular shell (210). A conical shell (270) is fixed to the top of the circular shell (210), and a rubber sleeve (271) is fixed to the outer side of the conical shell (270).

4. The testing fixture for high-temperature resistant valve seals according to claim 3, characterized in that, The blocking assembly includes: The support base (240) is fixedly connected to the circular shell (210); A rectangular shell (250) is connected to the top of the support base (240). An electric cylinder (251) is fixed to the inner top surface of the rectangular shell (250), and a movable shell (252) is fixed to the output end of the electric cylinder (251). The movable shell (252) is slidably connected to the inside of the rectangular shell (250). A conical block (253) is fixed to the bottom of the movable shell (252), and a rubber sleeve (254) is sleeved and fixed to the outside of the conical block (253). A pressure sensor (255) is embedded and fixed to the bottom of the conical block (253).

5. The testing fixture for high-temperature resistant valve seals according to any one of claims 3-4, characterized in that, The water injection assembly includes: The water tank (220) is fixedly connected to the inner bottom surface of the protective shell (100); A water pump (230) is fixedly connected to the inner bottom surface of the protective shell (100). The pumping end of the water pump (230) is connected to and fixedly connected to a first delivery pipe (231), and the first delivery pipe (231) is connected to and fixedly connected to a water tank (220). The outlet end of the water pump (230) is connected to and fixedly connected to a second delivery pipe (232). One end of the second delivery pipe (232) has a circular hole (101) and extends into the side wall of the circular shell (210) and into the interior of the circular shell (210). One end of the second delivery pipe (232) is connected to the circular shell. (210) Rotary connection at the middle position of the bottom, one end of the second conveying pipe (232) is connected to and fixed with an electric control valve (233), and one end of the electric control valve (233) passes through the side wall of the round shell (210) and extends into the interior of the conical shell (270). The second conveying pipe (232) is connected to and fixed with an electric control valve (234), and one end of the electric control valve (234) is connected to and fixed with a third conveying pipe (235), and the third conveying pipe (235) is connected to and fixed with the top of the water tank (220).

6. The testing fixture for high-temperature resistant valve seals according to claim 3, characterized in that, The limiting component includes: A connecting shell (260) is disposed on the outside of the conical shell (270). Both ends of the connecting shell (260) are rotatably connected to rotating blocks (261). One end of the rotating block (261) passes through the side wall of the connecting shell (260) and is fixedly connected to a screw (262). A movable plate (263) is screwed to the outside of the screw (262). The movable plate (263) is slidably connected to the connecting shell (260). A second conical block (264) is fixedly connected to the movable plate (263). Multiple electric cylinders (280) are fixedly connected to the inner bottom surface of the circular shell (210) at their bottom, and the output ends of the multiple electric cylinders (280) are fixedly connected to the connecting shell (260) through the side wall of the circular shell (210).

7. The testing fixture for high-temperature resistant valve seals according to claim 1, characterized in that, The adjustment mechanism (300) includes: A geared motor (310) is fixedly connected to the protective shell (100); The gear (320) is sleeved and fixed to the output end of the geared motor (310); A fixing ring (330) is disposed inside the protective shell (100). The top of the fixing ring (330) is fixedly connected to the bottom of the round shell (210). A toothed ring (331) is sleeved and fixed on the outside of the fixing ring (330), and the toothed ring (331) meshes with the gear (320).

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