A kind of axial flow type regulating valve seal test structure
By designing an axial flow regulating valve sealing test structure with automatic clamping and precise adjustment, the problems of poor adaptability and uneven sealing pressure of existing devices have been solved, achieving efficient and accurate sealing performance testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN GREEN FLUID CONTROL EQUIP CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-26
AI Technical Summary
Existing sealing test devices for axial flow control valves have poor adaptability to valves of different specifications, require special fixtures, increase testing costs and reduce efficiency, and manual operation makes it difficult to ensure the uniformity of sealing pressure, which can easily lead to media leakage or damage to the valve sealing surface.
A sealing test structure for an axial flow regulating valve, including a water tank and a gantry frame, was designed. It adopts an auxiliary test component with automatic clamping and precise adjustment, and is connected to an air compressor through a closed plate to achieve rapid adaptation to valves of different specifications. The sealing performance is tested using an electric component and a transparent water tank.
It improves testing efficiency and versatility, reduces human error rate, ensures uniform sealing pressure and testing accuracy, avoids media leakage and valve damage, and simplifies the operation process.
Smart Images
Figure CN224416351U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sealing test technology, and in particular to a sealing test structure for an axial flow regulating valve. Background Technology
[0002] In industries such as petroleum, chemical, and power, axial flow control valves are key components in pipeline systems for controlling fluid flow and pressure. Their sealing performance directly affects the safety and stability of the system. If the valve seal fails, it may lead to the leakage of toxic and harmful media, causing safety accidents and environmental pollution. At the same time, poor sealing will also reduce the accuracy of fluid control, resulting in energy waste and reduced production efficiency. Therefore, the sealing performance of axial flow control valves must be rigorously tested before they are put into use.
[0003] Currently, the sealing test methods for axial flow control valves mainly include pressure testing and bubble detection. Traditional testing devices have poor adaptability to valves of different specifications, often requiring the design of special fixtures for valves of different diameters. This not only increases testing costs but also reduces testing efficiency. Furthermore, most testing equipment uses manual operation to fix and seal the valve, making it difficult to ensure the uniformity of sealing pressure. This can easily lead to media leakage due to insufficient clamping force or damage to the valve sealing surface due to excessive pressure, affecting the accuracy of the test results.
[0004] To address this, a sealing test structure for axial flow regulating valves is proposed. Utility Model Content
[0005] The purpose of this invention is to provide a sealing test structure for axial flow regulating valves, which can solve the problems of poor adaptability of existing testing devices to valves of different specifications. Often, special fixtures need to be designed for valves of different diameters, which not only increases the testing cost but also reduces the testing efficiency. Furthermore, most testing equipment uses manual operation to fix and seal the valve, which makes it difficult to ensure the uniformity of the sealing pressure. This can easily lead to media leakage due to insufficient clamping force or damage to the valve sealing surface due to excessive pressure, thus affecting the accuracy of the test results.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an axial flow regulating valve sealing test structure, including a water tank and a regulating valve body, a gantry frame is fixedly connected to the surface of the water tank, an adjusting component is provided inside the gantry frame, the adjusting component includes a lifting plate, and an auxiliary test component is provided at the bottom of the lifting plate;
[0007] The auxiliary testing component includes two closed plates, which are respectively located at both ends of the regulating valve body. A connecting frame is fixedly connected to the outer side of the closed plate, and a vertical plate is fixedly connected to the top of the connecting frame. The vertical plate is fixedly connected to the bottom of the lifting plate, and an air supply pipe is fixedly connected inside the right closed plate. The other end of the air supply pipe passes through the vertical plate and is fixedly connected to an air compressor, and the air compressor is fixedly connected to the vertical plate.
[0008] Preferably, the bottom of the lifting plate is provided with a horizontal groove, and a bidirectional screw is rotatably connected inside the horizontal groove. Both sides of the surface of the bidirectional screw are threaded with screw blocks, and the bottom of the screw blocks is fixedly connected to the top of the vertical plate.
[0009] Preferably, a drive motor is fixedly connected to the right side of the inner wall of the transverse groove, and the output end of the drive motor is fixedly connected to the right end of the bidirectional screw.
[0010] Preferably, the front and rear sides of the inner wall of the transverse groove are provided with limiting grooves, and the front and rear sides of the screw block are fixedly connected with limiting blocks, which are slidably connected inside the limiting grooves.
[0011] Preferably, vertical grooves are fixedly connected to both sides of the inner wall of the gantry frame, and lifting blocks are slidably connected inside the vertical grooves. The side of the lifting block closest to the lifting plate is fixedly connected to the lifting plate.
[0012] Preferably, electric telescopic rods are fixedly connected to both sides of the top of the gantry frame, and the telescopic ends of the electric telescopic rods are fixedly connected to the bottom of the lifting block.
[0013] Preferably, the gantry frame has an insertion slot inside, and a placement plate is movably connected inside the insertion slot, with a handle fixedly connected to the front side of the placement plate.
[0014] Preferably, a supporting arc-shaped block is fixedly connected to the top of the placement plate, the regulating valve body is disposed inside the supporting arc-shaped block, and the inner wall of the supporting arc-shaped block is in contact with the surface of the regulating valve body.
[0015] Preferably, the water tank is made of transparent acrylic material, and a water pipe is fixedly connected to the surface of the water tank.
[0016] Preferably, a sealing ring is fixedly connected to the side of the sealing plate near the regulating valve body, and the sealing ring is tightly fitted to the regulating valve body.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. By setting up an auxiliary testing component, after the regulating valve body is placed in the designated position, the sealing plate can automatically clamp both ends of the regulating valve body under the action of the regulating component. The right sealing plate is connected to the air compressor through the air supply pipe, which can quickly fill the valve cavity with compressed air. There is no need to manually connect the air source and seal, which greatly improves the testing efficiency and reduces the error rate and labor intensity of manual operation.
[0019] 2. This application incorporates an adjustment component that can quickly and accurately adjust the distance between the two sealing plates, thereby adapting to different specifications of control valve bodies, significantly improving testing efficiency, and thus enhancing versatility. Attached Figure Description
[0020] Figure 1 This is an overall structural diagram of the sealing test structure for the axial flow regulating valve of this utility model.
[0021] Figure 2 This utility model Figure 1 Side view;
[0022] Figure 3 This is a schematic diagram of the structure of the adjustment component of this utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the auxiliary testing component of this utility model;
[0024] Figure 5 This is a schematic diagram showing the connection between the gantry frame and the placement plate of this utility model.
[0025] In the diagram, 1. Water tank; 2. Regulating valve body; 3. Gantry frame; 4. Regulating assembly; 401. Lifting plate; 402. Horizontal groove; 403. Bidirectional screw; 404. Screw block; 405. Drive motor; 406. Limit groove; 407. Limit block; 5. Auxiliary test assembly; 501. Sealing plate; 502. Connecting frame; 503. Vertical plate; 504. Air supply pipe; 505. Air compressor; 6. Vertical groove; 7. Lifting block; 8. Electric telescopic rod; 9. Insertion groove; 10. Placement plate; 11. Handle; 12. Support arc block; 13. Water guide pipe; 14. Sealing ring. Detailed Implementation
[0026] 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.
[0027] Please see Figure 1-5The present invention provides the following technical solution:
[0028] An axial flow regulating valve sealing test structure includes a water tank 1 and a regulating valve body 2. A gantry 3 is fixedly connected to the surface of the water tank 1. An adjusting component 4 is provided inside the gantry 3. The adjusting component 4 includes a lifting plate 401. An auxiliary test component 5 is provided at the bottom of the lifting plate 401.
[0029] The auxiliary test component 5 includes two closed plates 501, which are respectively set at both ends of the regulating valve body 2. A connecting frame 502 is fixedly connected to the outside of the closed plate 501. A vertical plate 503 is fixedly connected to the top of the connecting frame 502. The vertical plate 503 is fixedly connected to the bottom of the lifting plate 401. An air supply pipe 504 is fixedly connected inside the right closed plate 501. The other end of the air supply pipe 504 passes through the vertical plate 503 and is fixedly connected to an air compressor 505. The air compressor 505 is fixedly connected to the vertical plate 503.
[0030] In this embodiment: by setting the auxiliary testing component 5, the sealing plate 501, as a component that directly contacts the regulating valve body 2, can tightly fit the port of the regulating valve body 2, preventing compressed air leakage and ensuring constant pressure inside the valve cavity, thus laying the foundation for accurately judging the sealing performance of the regulating valve body 2. The connecting bracket 502 can smoothly transmit force to the sealing plate 501, ensuring its precise opening and closing along a straight line, thereby adapting to regulating valve bodies 2 of different diameters. The vertical plate 503 can cause the lifting plate 401 to drive the sealing plate 501 and the regulating valve body 2 to rise and fall together, facilitating subsequent rapid... Quickly immerse the regulating valve body 2 into the water tank 1. The air supply pipe 504 is made of pressure-resistant and wear-resistant material, which can withstand the high pressure required for the test, so that the pressure generated by the air compressor 505 can be efficiently transmitted to the valve cavity of the regulating valve body 2, simulating the actual working pressure environment of the regulating valve body 2. The air compressor 505 generates test pressure by compressing air and can continuously output dry and stable compressed air. The stable air supply can ensure that the pressure in the valve cavity of the regulating valve body 2 is constant. In conjunction with the bubble detection in the water tank 1, it helps the testers to accurately determine whether there is a leak in the valve, thereby evaluating its sealing performance.
[0031] Specifically, such as Figure 3 As shown, a horizontal groove 402 is provided at the bottom of the lifting plate 401. A bidirectional screw 403 is rotatably connected inside the horizontal groove 402. Screw blocks 404 are threadedly connected to both sides of the surface of the bidirectional screw 403. The bottom of the screw blocks 404 is fixedly connected to the top of the vertical plate 503.
[0032] Specifically, such as Figure 3 As shown, a drive motor 405 is fixedly connected to the right side of the inner wall of the transverse groove 402, and the output end of the drive motor 405 is fixedly connected to the right end of the bidirectional screw 403.
[0033] Specifically, such as Figure 3 As shown, limit grooves 406 are provided on the front and rear sides of the inner wall of the transverse groove 402, and limit blocks 407 are fixedly connected to the front and rear sides of the screw block 404, and the limit blocks 407 are slidably connected inside the limit grooves 406.
[0034] In this embodiment: Through the above settings, the transverse groove 402 can provide movement space for the internal bidirectional screw 403 and screw block 404, ensuring that the screw block 404 can move smoothly under the threaded transmission. When the drive motor 405 drives the bidirectional screw 403 to rotate, the screw blocks 404 on both sides will move towards or away from each other, so that the two sealing plates 501 can move symmetrically around the regulating valve as the center, ensuring that the force on both ends of the regulating valve body 2 is uniform during the clamping process, avoiding poor sealing or damage to the regulating valve body 2 due to force on one side. It can achieve precise control of the moving distance of the sealing plate 501, meeting the testing requirements of regulating valve bodies 2 of different specifications. During the movement of the screw block 404, the limiting block 407 will slide in the limiting groove 406, providing precise guidance for the movement of the screw block 404 to ensure that it moves in a straight line, and limiting the rotation of the screw block 404 to prevent the screw block 404 from rotating due to the torque generated by the screw rotation, thereby ensuring the smooth movement of the sealing plate 501 and avoiding the impact of movement deviation on the sealing test effect of the regulating valve body 2.
[0035] Specifically, such as Figure 1 As shown, vertical grooves 6 are fixedly connected to both sides of the inner wall of the gantry frame 3. Lifting blocks 7 are slidably connected inside the vertical grooves 6. The side of the lifting block 7 closest to the lifting plate 401 is fixedly connected to the lifting plate 401.
[0036] Specifically, such as Figure 1 As shown, electric telescopic rods 8 are fixedly connected to both sides of the top of the gantry frame 3, and the telescopic ends of the electric telescopic rods 8 are fixedly connected to the bottom of the lifting block 7.
[0037] In this embodiment: Through the above settings, the gantry 3 can provide an installation foundation and motion guide for other structures, ensuring the overall stability of the test structure during operation. The lifting block 7 can convert the telescopic movement of the electric telescopic rod 8 into the vertical displacement of the lifting plate 401. By electrically controlling the telescopic rod's telescopic length, the height of the lifting plate 401 can be precisely adjusted, allowing the regulating valve body 2 to be accurately immersed in the water tank 1 for bubble detection, or removed from the water tank 1 for subsequent operations. The electric telescopic rod 8 has the characteristics of fast response speed and high control precision. The lifting speed and position can be set according to the test requirements, thereby improving the flexibility of use.
[0038] Specifically, such as Figure 5 As shown, the gantry frame 3 has an insertion slot 9 inside, and a placement plate 10 is movably connected inside the insertion slot 9. A handle 11 is fixedly connected to the front side of the placement plate 10.
[0039] Specifically, such as Figure 5 As shown, a support arc-shaped block 12 is fixedly connected to the top of the placement plate 10, and the regulating valve body 2 is disposed inside the support arc-shaped block 12, with the inner wall of the support arc-shaped block 12 and the surface of the regulating valve body 2 in contact with each other.
[0040] In this embodiment: Through the above settings, the insertion slot 9 provides a convenient channel for the installation and removal of the placement plate 10. The placement plate 10, through its movable connection with the insertion slot 9, can be flexibly inserted or pulled out, making it convenient for operators to place the regulating valve body 2 at the test station or remove the regulating valve body 2 after the test is completed. The handle 11 fixed on the front side of the placement plate 10 is designed in accordance with ergonomic principles, making it convenient for operators to grip and apply force, easily controlling the entry and exit of the placement plate 10, and improving the convenience of operation. The inner wall of the supporting arc block 12 is designed according to the outer contour of the regulating valve body 2, and can fit tightly against the surface of the regulating valve body 2. After the regulating valve body 2 is placed, it can evenly distribute the weight of the regulating valve body 2, avoiding damage to the regulating valve body 2 due to excessive local force, so that the operator can quickly and accurately place the regulating valve body 2 in the correct position, further improving the testing efficiency.
[0041] Specifically, such as Figure 1 As shown, water tank 1 is made of transparent acrylic material, and a water pipe 13 is fixedly connected to the surface of water tank 1.
[0042] Specifically, such as Figure 4 As shown, a sealing ring 14 is fixedly connected to the side of the sealing plate 501 near the regulating valve body 2, and the sealing ring 14 is tightly fitted to the regulating valve body 2.
[0043] In this embodiment: With the above settings, the water tank 1 made of transparent acrylic material allows the operator to directly observe the air bubble leakage after the regulating valve body 2 is immersed in water. The sealing performance can be quickly judged without additional testing equipment, simplifying the testing process. The water tank 1 can be quickly emptied through the water pipe 13, which is convenient for cleaning or replacing the test medium. The sealing ring 14 is made of elastic material. By tightly fitting with the port of the regulating valve body 2, a reliable sealing interface can be formed, which can effectively prevent compressed air leakage, ensure the stability of the pressure in the valve cavity of the regulating valve body 2, and improve the test accuracy.
[0044] Working principle: First, insert the placement plate 10 into the insertion slot 9 using the handle 11 to ensure the placement plate 10 is in place. Then, place the regulating valve body 2 to be tested into the support arc block 12. The inner wall of the support arc block 12 fits against the surface of the regulating valve body 2, ensuring the regulating valve body 2 remains stable and accurately positioned. Then, start the drive motor 405 via the external controller. The drive motor 405 drives the bidirectional screw 403 to rotate, causing the two screw blocks 404 on both sides to move synchronously in opposite directions under the threaded transmission. This, in turn, moves the vertical plate 503, connecting bracket 502, and sealing plate 501 towards both ends of the regulating valve body 2 until the sealing ring 14 on the sealing plate 501 is tightly fitted with the regulating valve body 2, completing the clamping of the regulating valve body 2. After confirming that the regulating valve body 2 is clamped, start the air compressor 505. The air compressor 505 delivers dry compressed air into the right sealing plate 501 through the air supply pipe 504, allowing the compressed air to enter the regulating valve. The valve body 2 provides a pressure source for the sealing test. Then, the placement plate 10 is removed from the insertion slot 9 via the handle 11. The electric telescopic rod 8 is then activated. The telescopic end of the electric telescopic rod 8 will drive the lifting block 7 to slide downward in the vertical slot 6. The lifting block 7 is fixedly connected to the lifting plate 401, so that the lifting plate 401, auxiliary test components 5 and regulating valve body 2 descend smoothly. The regulating valve body 2 is immersed in the water tank 1. Then, observe whether there are bubbles around the regulating valve body 2 in the water tank 1. If there are continuous bubbles, it indicates that there is a sealing leakage problem in the regulating valve body 2. If there are no bubbles or only a few bubbles occasionally, it indicates that the sealing performance of the regulating valve body 2 is qualified. During the test, the pressure output of the air compressor 505 can be adjusted by the external controller as needed to simulate the pressure environment under different working conditions. After the test is completed, the electric telescopic rod 8 retracts, driving the lifting block 7 and the lifting plate 401 to rise, so that the regulating valve body 2 can be removed from the water tank 1.
[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A sealing test structure for an axial flow regulating valve, comprising a water tank (1) and a regulating valve body (2), characterized in that: A gantry frame (3) is fixedly connected to the surface of the water tank (1). An adjustment component (4) is provided inside the gantry frame (3). The adjustment component (4) includes a lifting plate (401). An auxiliary testing component (5) is provided at the bottom of the lifting plate (401). The auxiliary test component (5) includes two closed plates (501) and the two closed plates (501) are respectively set at both ends of the regulating valve body (2). A connecting frame (502) is fixedly connected to the outside of the closed plate (501). A vertical plate (503) is fixedly connected to the top of the connecting frame (502). The vertical plate (503) is fixedly connected to the bottom of the lifting plate (401). An air supply pipe (504) is fixedly connected inside the right closed plate (501). The other end of the air supply pipe (504) passes through the vertical plate (503) and is fixedly connected to an air compressor (505). The air compressor (505) is fixedly connected to the vertical plate (503).
2. The sealing test structure for an axial flow regulating valve according to claim 1, characterized in that: The bottom of the lifting plate (401) is provided with a horizontal groove (402), and a bidirectional screw (403) is rotatably connected inside the horizontal groove (402). Both sides of the surface of the bidirectional screw (403) are threaded with screw blocks (404), and the bottom of the screw blocks (404) is fixedly connected to the top of the vertical plate (503).
3. The sealing test structure for an axial flow regulating valve according to claim 2, characterized in that: A drive motor (405) is fixedly connected to the right side of the inner wall of the transverse groove (402), and the output end of the drive motor (405) is fixedly connected to the right end of the bidirectional screw (403).
4. The sealing test structure for an axial flow regulating valve according to claim 2, characterized in that: Limiting grooves (406) are provided on the front and rear sides of the inner wall of the transverse groove (402). Limiting blocks (407) are fixedly connected to the front and rear sides of the screw block (404), and the limiting blocks (407) are slidably connected inside the limiting grooves (406).
5. The sealing test structure for an axial flow regulating valve according to claim 1, characterized in that: Both sides of the inner wall of the gantry frame (3) are fixedly connected with vertical grooves (6), and a lifting block (7) is slidably connected inside the vertical groove (6). The side of the lifting block (7) near the lifting plate (401) is fixedly connected to the lifting plate (401).
6. The sealing test structure for an axial flow regulating valve according to claim 5, characterized in that: Electric telescopic rods (8) are fixedly connected to both sides of the top of the gantry frame (3), and the telescopic ends of the electric telescopic rods (8) are fixedly connected to the bottom of the lifting block (7).
7. The sealing test structure for an axial flow regulating valve according to claim 1, characterized in that: The gantry frame (3) has an insertion slot (9) inside, and a placement plate (10) is movably connected inside the insertion slot (9), and a handle (11) is fixedly connected to the front side of the placement plate (10).
8. The sealing test structure for an axial flow regulating valve according to claim 7, characterized in that: The top of the placement plate (10) is fixedly connected to a support arc block (12), and the regulating valve body (2) is located inside the support arc block (12), and the inner wall of the support arc block (12) is in contact with the surface of the regulating valve body (2).
9. The sealing test structure for an axial flow regulating valve according to claim 1, characterized in that: The water tank (1) is made of transparent acrylic material, and a water pipe (13) is fixedly connected to the surface of the water tank (1).
10. The sealing test structure for an axial flow regulating valve according to claim 1, characterized in that: A sealing ring (14) is fixedly connected to the side of the sealing plate (501) near the regulating valve body (2), and the sealing ring (14) is tightly fitted to the regulating valve body (2).