A corrosion-resistant gate valve with self-adjusting sealing compensation function

Abstract

This utility model relates to the field of gate valve technology, specifically disclosing a corrosion-resistant gate valve with self-adjusting sealing compensation function, including a valve body. Two fixing rings are fixedly connected to the inner sides of the valve body. Each fixing ring has a first sliding opening, in which a first sliding plate is slidably connected. One end of the first sliding plate is fixedly connected to a sliding ring, and one end of the sliding ring passes through the fixing ring and is fixedly connected to a sealing seat. A first sealing ring is fixedly connected to the outside of the sealing seat. A self-adjusting component is provided inside the first sliding opening. In this utility model, by setting the self-adjusting component, once the first sealing ring is worn, adjusting the position of the first sliding plate allows the first sealing ring outside the sealing seat to tightly contact the valve core, thereby ensuring the sealing performance of the valve body.

Description

Technical Field

[0001] This utility model relates to the field of gate valve technology, and in particular to a corrosion-resistant gate valve with self-adjusting sealing compensation function. Background Technology

[0002] In many fields of industrial production, such as chemical, petroleum, pharmaceutical, and water treatment, gate valves play a crucial role as an important fluid control device. They achieve the opening and closing of pipelines by raising and lowering a gate, and have advantages such as low flow resistance and good sealing performance.

[0003] Traditional corrosion-resistant gate valves, while employing corrosion-resistant materials such as stainless steel and Hastelloy, still have shortcomings in sealing performance. Their sealing structure typically employs a rigid seal, meaning the seal between the gate and seat is achieved through precise machining. During long-term use, corrosion and erosion from the medium, as well as wear on the gate and seat, can cause gaps to appear at the sealing surfaces, leading to leakage. Utility Model Content

[0004] To address the technical problem that traditional corrosion-resistant gate valves still have insufficient sealing performance, this utility model provides a corrosion-resistant gate valve with self-adjusting sealing compensation function.

[0005] The technical solution adopted by this utility model is: a corrosion-resistant gate valve with self-adjusting sealing compensation function, including a valve body, with fixed rings fixedly connected to both sides inside the valve body, the fixed ring having a first sliding port, a first sliding plate slidably connected in the first sliding port, a sliding ring fixedly connected to one end of the first sliding plate, a sealing seat fixedly connected to one end of the sliding ring after passing through the fixed ring, a first sealing ring fixedly connected to the outside of the sealing seat, and a self-adjusting component provided in the first sliding port.

[0006] A further feature of this invention is that a sealing ring is fixedly connected inside the first sliding opening, and the sealing ring abuts against the side wall of the sliding ring.

[0007] The present invention is further configured such that the self-adjusting component includes a first magnet and a second magnet, the first magnet being fixedly connected to the first sliding opening, the second magnet being fixedly connected to the sliding plate, and the first magnet and the second magnet being arranged with the same poles repelling each other.

[0008] A further feature of this invention is that a laser ranging sensor is fixedly connected inside the first sliding port, and a controller and a display screen are fixedly connected to the outside of the valve body. The laser ranging sensor and the display screen are both electrically coupled to the controller.

[0009] A further feature of this invention is that both ends of the valve body are provided with a second sliding port and a third sliding port, the second sliding port and the third sliding port are provided correspondingly, a second sliding plate is slidably connected in the third sliding port, a mounting base is fixedly connected to the outside of the second sliding plate, and a second sealing ring is fixedly connected to the outside of the mounting base.

[0010] A further feature of this invention is that a third magnet is fixedly connected inside the second sliding opening, and a fourth magnet is fixedly connected to the outside of the second sliding plate, wherein the third magnet and the fourth magnet are arranged with the same poles repelling each other.

[0011] A further feature of this invention is that a through hole is provided between the valve body and the first sliding port and the second sliding port.

[0012] The beneficial effects of this utility model are: In this utility model, by setting the self-adjusting component, once the first sealing ring is worn, by adjusting the position of the first sliding plate, the first sealing ring outside the sealing seat can be tightly pressed against the valve core, thereby ensuring the sealing performance of the valve body. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the valve body in this utility model;

[0015] Figure 3 This is a cross-sectional structural schematic diagram of the present invention;

[0016] Figure 4 yes Figure 3 Enlarged structural diagram of region A in the middle;

[0017] Figure 5 yes Figure 3 A magnified structural diagram of region B in the middle;

[0018] Figure 6 This is a schematic diagram of the structure of the second sliding plate in this utility model.

[0019] The diagram is marked as follows:

[0020] 1. Valve body; 2. Retaining ring; 3. First sliding port; 4. First magnet; 5. Second magnet; 6. Laser rangefinder sensor; 7. First sliding plate; 8. Slip ring; 9. Sealing seat; 10. First sealing ring; 11. Sealing ring; 12. Second sliding port; 13. Third magnet; 14. Third sliding port; 15. Second sliding plate; 16. Mounting seat; 17. Second sealing ring; 18. Fourth magnet. Detailed Implementation

[0021] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] The following is in conjunction with the appendix Figure 1-6 The present invention will be further described below.

[0023] To address the problems existing in the background technology, this application proposes the following technical solution: A corrosion-resistant gate valve with self-adjusting sealing compensation function, comprising a valve body 1, with fixed rings 2 fixedly connected to both sides of the valve body 1, and a first sliding port 3 provided on the fixed rings 2. A first sliding plate 7 is slidably connected in the first sliding port 3, and a sliding ring 8 is fixedly connected to one end of the first sliding plate 7. A sealing seat 9 is fixedly connected to one end of the sliding ring 8 after passing through the fixed ring 2, and a first sealing ring 10 is fixedly connected to the outside of the sealing seat 9. A self-adjusting component is provided inside the first sliding port 3. A sealing ring 11 is fixedly connected inside the first sliding port 3, and the sealing ring 11 abuts against the side wall of the sliding ring 8. The valve body 1, as the main structure of the gate valve, is made of a highly corrosion-resistant material, capable of withstanding long-term erosion by various corrosive media, ensuring the stable operation of the gate valve under complex working conditions. The fixed rings 2 on both sides of the interior provide a stable mounting base for each component, and the first sliding port 3 provides a precise guiding channel for the sliding of the sliding plate, ensuring that the sliding plate can move smoothly in a straight line and avoiding the sealing effect due to deviation.

[0024] The slip ring 8 at one end of the slide plate passes through the fixed ring 2 and connects to the sealing seat 9. When the slide plate slides, the slip ring 8 drives the sealing seat 9 to move synchronously, so that the first sealing ring 10 on the outside of the sealing seat 9 is always in close contact with the valve core, ensuring sealing performance. The sealing ring 11 inside the first sliding port 3 abuts against the side wall of the slip ring 8, which can effectively prevent the medium from leaking from the gap between the slip ring 8 and the first sliding port 3, further enhancing the sealing performance of the gate valve.

[0025] In this embodiment, the self-adjusting component includes a first magnet 4 and a second magnet 5. The first magnet 4 is fixedly connected to the first sliding opening 3, and the second magnet 5 is fixedly connected to the sliding plate. The first magnet 4 and the second magnet 5 are arranged with the same poles repelling each other.

[0026] The first magnet 4 and the second magnet 5 of the self-adjusting assembly are arranged with like poles repelling each other, using the repulsive force of the magnets to provide a continuous thrust to the sliding plate. During normal operation of the gate valve, the first sealing ring 10 is in close contact with the valve core. At this time, the repulsive force on the sliding plate and the reaction force of the sealing ring are balanced, and the sealing seat 9 is in a stable position. When the first sealing ring 10 wears down due to long-term use, its thickness decreases, and the reaction force on the sealing seat 9 weakens. The repulsive force between the first magnet 4 and the second magnet 5 pushes the sliding plate forward, causing the sealing seat 9 and the first sealing ring 10 to move towards the valve core, compensating for the wear and allowing the first sealing ring 10 to re-engage tightly with the valve core, restoring the sealing performance.

[0027] This self-regulating method, utilizing magnetic repulsion, requires no external power, boasts a simple and reliable structure, and can respond in real-time to the wear of the sealing ring, automatically compensating for seal wear and preventing media leakage caused by seal wear. Furthermore, the repulsive force of the magnet is stable and does not significantly diminish over time, ensuring the long-term effectiveness of the self-regulating function and providing continuous assurance for the stable operation of the gate valve.

[0028] In this embodiment, a laser rangefinder 6 is fixedly connected inside the first sliding port 3, and a controller and a display screen are fixedly connected to the outside of the valve body 1. The laser rangefinder 6 and the display screen are both electrically coupled to the controller. The laser rangefinder 6 inside the first sliding port 3 can monitor the position change of the slide plate in real time. When the first sealing ring 10 wears, the slide plate moves forward under the action of magnetic repulsion, and the laser rangefinder 6 transmits the detected displacement signal to the controller. After processing the signal, the controller displays the wear degree of the first sealing ring 10 intuitively on the external display screen, allowing the operator to understand the status of the sealing ring in a timely manner, arrange maintenance and replacement in advance, and avoid sealing failure and media leakage due to excessive wear of the sealing ring.

[0029] The laser rangefinder sensor 6 boasts high measurement accuracy, capable of precisely capturing minute displacement changes, ensuring accurate and reliable assessment of seal wear. The controller and display screen work together to automate and visualize wear status monitoring, reducing the workload and errors of manual inspections and improving the timeliness and targeted nature of gate valve maintenance. This intelligent monitoring method makes gate valve management more convenient and efficient, further enhancing the safety and reliability of equipment operation.

[0030] In this embodiment, both ends of the valve body 1 are provided with a second sliding port 12 and a third sliding port 14, which are correspondingly arranged. A second sliding plate 15 is slidably connected in the third sliding port 14, and a mounting base 16 is fixedly connected to the outside of the second sliding plate 15. A second sealing ring 17 is fixedly connected to the outside of the mounting base 16. A third magnet 13 is fixedly connected inside the second sliding port 12, and a fourth magnet 18 is fixedly connected to the outside of the second sliding plate 15. The third magnet 13 and the fourth magnet 18 are arranged with like poles repelling each other. A through hole is provided between the valve body 1 and the first sliding port 3 and the second sliding port 12 for the wire to pass through. The second sliding port 12 and the third sliding port 14 at both ends of the valve body 1 provide space for the sliding of the second sliding plate 15. The second sliding plate 15 in the third sliding port 14 can drive the external mounting base 16 and the second sealing ring 17 to move. The second sealing ring 17 is used for sealing between the valve body 1 and the pipe interface. When the second sealing ring 17 is worn due to use, the third magnet 13 inside the second sliding port 12 and the fourth magnet 18 outside the second sliding plate 15 generate a thrust due to the repulsion of like poles, pushing the second sliding plate 15 to move towards the pipe interface, driving the mounting base 16 and the second sealing ring 17 to move synchronously, compensating for the wear, so that the second sealing ring 17 is always in close contact with the pipe interface, ensuring the sealing performance of the connection between the valve body 1 and the pipe.

[0031] This design shares the same self-adjusting principle as the first sealing ring 10, achieving automatic compensation through magnetic repulsion. This ensures that the gate valve maintains a good sealing effect at two key sealing locations (the valve core and the pipe interface). The through-hole on the valve body 1 is used to pass wires through, connecting electronic components such as the laser rangefinder 6 to an external controller. At the same time, the through-hole design does not affect the overall structural strength and sealing performance of the gate valve, ensuring the normal operation of all components.

[0032] The usage method of this embodiment is as follows:

[0033] During normal use of valve body 1, the first sealing ring 10 and the second sealing ring 17 will wear out;

[0034] Therefore, once the first sealing ring 10 and the second sealing ring 17 are worn, the repulsive arrangement of the same poles of the first magnet 4 and the second magnet 5, as well as the repulsive arrangement of the same poles of the third magnet 13 and the fourth magnet 18, can push the first sliding plate 7 and the second sliding plate 15 to slide. The first sliding plate 7 pushes the sealing seat 9 to slide, so that the first sealing ring 10 is in close contact with the valve core in the valve body 1, while the second sliding plate 15 drives the mounting seat 16 to slide, so that the second sealing ring 17 is in close contact with the pipe interface, thus completing the adaptive adjustment and increasing the sealing performance of the valve body 1.

[0035] By setting up the laser rangefinder 6, the movement distance of the first slide plate 7 can be measured, thereby determining the wear condition of the first sealing ring 10, while the wear condition of the second sealing ring 17 can be directly observed.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A corrosion-resistant gate valve with self-adjusting sealing compensation function, comprising a valve body (1), characterized in that, The valve body (1) has a fixed ring (2) fixedly connected to both sides inside. The fixed ring (2) has a first sliding port (3). A first sliding plate (7) is slidably connected in the first sliding port (3). A sliding ring (8) is fixedly connected to one end of the first sliding plate (7). A sealing seat (9) is fixedly connected to one end of the sliding ring (8) after passing through the fixed ring (2). A first sealing ring (10) is fixedly connected to the outside of the sealing seat (9). A self-adjusting component is provided inside the first sliding port (3).

2. The corrosion resistant gate valve with self-adjusting seal compensation function according to claim 1, characterized in that, A sealing ring (11) is fixedly connected inside the first sliding opening (3), and the sealing ring (11) abuts against the side wall of the sliding ring (8).

3. The corrosion resistant gate valve with self-adjusting seal compensation function according to claim 2, characterized in that, The self-adjusting component includes a first magnet (4) and a second magnet (5). The first magnet (4) is fixedly connected to the first sliding opening (3), and the second magnet (5) is fixedly connected to the sliding plate. The first magnet (4) and the second magnet (5) are arranged with the same poles repelling each other.

4. A corrosion-resistant gate valve with self-adjusting sealing compensation function according to claim 3, characterized in that, A laser rangefinder (6) is fixedly connected inside the first sliding port (3). A controller and a display screen are fixedly connected to the outside of the valve body (1). The laser rangefinder (6) and the display screen are electrically coupled to the controller.

5. The corrosion resistant gate valve with self-adjusting seal compensation function according to claim 1, characterized in that, The valve body (1) is provided with a second sliding port (12) and a third sliding port (14) at both ends. The second sliding port (12) and the third sliding port (14) are provided correspondingly. A second sliding plate (15) is slidably connected in the third sliding port (14). A mounting base (16) is fixedly connected to the outside of the second sliding plate (15). A second sealing ring (17) is fixedly connected to the outside of the mounting base (16).

6. The corrosion resistant gate valve with self-adjusting seal compensation function according to claim 5, characterized in that, A third magnet (13) is fixedly connected inside the second sliding opening (12), and a fourth magnet (18) is fixedly connected to the outside of the second sliding plate (15). The third magnet (13) and the fourth magnet (18) are arranged with the same poles repelling each other.

7. A corrosion-resistant gate valve with self-adjusting sealing compensation function according to claim 6, characterized in that, The valve body (1) is provided with through holes between the first sliding port (3) and the second sliding port (12).

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