Wear-resistant flow regulating valve

Abstract

The utility model relates to the technical field of valves, in particular to a wear-resistant flow regulating valve which comprises a valve body, a pipe body, a valve plate, a valve rod, a flange plate and an inflation sealing assembly, the valve body is arranged on the pipe body, the valve rod is movably arranged on the valve body, the valve plate is arranged on the valve rod, the flange plate is arranged on the pipe body, and the inflation sealing assembly is arranged on the pipe body. The inflation sealing assembly comprises a circular ring abutting block, a semi-circular-ring inflation sealing ring, an inflation connector and an air pump, the circular ring abutting block is arranged on the pipe body, the semi-circular-ring inflation sealing ring is arranged on the pipe body, one end of the inflation connector penetrates through the pipe body and is arranged on the semi-circular-ring inflation sealing ring, and the other end of the inflation connector is arranged on the air pump. By means of the flexible design of the inflation sealing ring of the inflation sealing assembly, mechanical impact between the valve plate and the sealing ring can be buffered, abrasion is reduced, and the sealing performance of the flow regulating valve is enhanced.

Description

Technical Field

[0001] This application relates to the field of valve technology, and in particular to a wear-resistant flow regulating valve. Background Technology

[0002] Flow control valves are used for regulating medium and low pressure applications such as slurry and wastewater. This product features a simple and durable structure, is easy and flexible to use, and is a wear-resistant flow control valve specifically designed to control fluid flow. It possesses excellent wear resistance and controls the flow rate of the medium in the pipe by adjusting the valve opening. Its working principle is similar to that of ordinary flow control valves, but through the use of wear-resistant materials and structural design, it can better cope with severe wear conditions.

[0003] Currently, Chinese utility model patent application CN 220016143U, published on November 14, 2023, provides a flow regulating valve, including a valve body, a pipe body, and a rotating mechanism. The valve body includes a pipe body, a valve cover, screws, a sealing ring, and a nut. The pipe body is located on the upper surface of the valve body and extends to the bottom of the valve body. The pipe body includes a flange, an inlet pipe, and an outlet pipe. The inlet pipe is installed on the outer wall of the bottom of the valve body, and the outlet pipe is installed on the outer wall of the valve body on the side away from the inlet pipe. The outlet pipe, valve body, and inlet pipe are coaxial, with the valve body positioned between the outlet pipe and the inlet pipe. The outlet pipe, valve body, and inlet pipe are interconnected. This utility model uses a threaded rod, a rotating ring, and a valve disc. The threaded rod is threaded to the middle of the valve cover. This design allows for more accurate control of the valve disc's movement distance, thereby more accurately controlling the water flow rate. The structure, with its threaded rod, rotating ring, and valve disc, is relatively simple, has lower processing costs, and is more practical.

[0004] In related technologies, flow control valves with poor sealing can lead to fluid leakage. This not only wastes resources but may also pollute the environment and even cause safety accidents. Because of the fluid leakage or loss due to poor sealing, the system needs to consume more energy to maintain normal operation, thus increasing energy waste. Poor sealing also leads to accelerated wear of internal valve components such as seals, valve core, and valve seat, thereby shortening the valve's service life.

[0005] Therefore, it is necessary to provide a wear-resistant flow regulating valve to solve the above problems. Utility Model Content

[0006] This application provides a wear-resistant flow regulating valve to address the technical problems in related technologies, such as poor sealing performance of flow regulating valves leading to fluid leakage, increased energy waste, shortened service life, and increased maintenance costs.

[0007] This application provides a wear-resistant flow regulating valve, including a valve body, a pipe body, a valve plate, a valve stem, a flange, and an inflatable sealing assembly. The valve body is disposed on the pipe body, the valve stem is movably disposed on the valve body, the valve plate is disposed on the valve stem, and the flange is disposed on the pipe body. The inflatable sealing assembly includes a circular abutment block, a semi-circular inflatable sealing ring, an inflatable port, and an air pump. The circular abutment block is disposed on the pipe body, the semi-circular inflatable sealing ring is disposed on the pipe body, one end of the inflatable port passes through the pipe body and is disposed on the semi-circular inflatable sealing ring, and the air pump is disposed at the end of the inflatable port away from the semi-circular inflatable sealing ring.

[0008] The technical solution described above in this application embodiment has at least the following technical effects: When using a wear-resistant flow regulating valve to control the flow rate of the medium in the pipe body, during the process of closing the valve plate, by turning on the air pump, air is injected into the semi-circular inflatable sealing ring through the air inlet. The valve plate abuts against the semi-circular inflatable sealing ring, and at the same time, the circular abutment plate restricts the semi-circular inflatable sealing ring, so that the semi-circular inflatable sealing ring and the valve plate are tightly fitted. After inflation, the semi-circular inflatable sealing ring expands and can tightly fit against the surface of the valve plate, filling in minor unevenness and gaps, thereby achieving a more reliable sealing effect.

[0009] The wear-resistant flow regulating valve provided in this application embodiment can buffer the mechanical impact between the valve plate and the sealing ring through the flexible design of the inflatable sealing ring of the inflatable sealing component, reduce wear, and enhance the sealing performance of the flow regulating valve. In working conditions containing particles, fibers or other complex media, the inflatable sealing ring can effectively reduce the scouring and wear of the sealing surface by the media.

[0010] In some embodiments, a hard sealing assembly is provided on one end of the annular abutment block near the valve plate. The sealing assembly includes a first hard sealing ring, a second hard sealing ring, a soft sealing connector, and a spring. The first hard sealing ring is disposed on the annular abutment block, one end of the spring is disposed on the first hard sealing ring, the second hard sealing ring is disposed on the other end of the spring, one end of the soft sealing connector is disposed on the first hard sealing ring, and the other end of the soft sealing connector is disposed on the second hard sealing ring.

[0011] In some embodiments, a soft sealing pad is provided on the end of the second hard sealing ring away from the spring. The soft sealing pad is made of silicone rubber material, and the semi-circular inflatable sealing ring abuts against the soft sealing pad.

[0012] In some embodiments, a support frame is provided on the valve stem, and an abutment plate is fixedly provided on the valve plate. The abutment plate has a connection hole, and the abutment plate is slidably mounted on the support frame through the connection hole.

[0013] In some embodiments, a wear-resistant weld overlay is provided on the valve plate, and a rubber plate is attached to the pipe body.

[0014] In some embodiments, the valve plate is provided with a cleaning soft protrusion, which has a semi-circular structure and is made of polyurethane rubber material.

[0015] In some embodiments, a handwheel is rotatably mounted on the valve stem. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of the wear-resistant flow regulating valve provided in the embodiments of this application;

[0017] Figure 2 A cross-sectional structural schematic diagram of the wear-resistant flow regulating valve provided in the embodiments of this application;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 A three-dimensional structural schematic diagram of the inflatable sealing assembly provided in the embodiments of this application;

[0020] Figure 5 A three-dimensional structural schematic diagram of the hard sealing assembly provided in the embodiments of this application;

[0021] The following are the labeling elements in the figure:

[0022] 1. Valve body; 11. Pipe body; 12. Valve plate; 13. Valve stem; 14. Handwheel; 15. Support frame; 16. Abutment plate; 17. Flange; 2. Inflatable sealing assembly; 21. Semi-circular inflatable sealing ring; 22. Inflatable interface; 23. Air pump; 24. Circular abutment block; 3. Hard sealing assembly; 31. First hard sealing ring; 32. Second hard sealing ring; 33. Soft sealing connector; 34. Spring; 4. Soft sealing gasket; 5. Cleaning soft protrusion. Detailed Implementation

[0023] Based on this, in order to improve the technical problems of poor sealing performance of flow control valves in related technologies, which leads to fluid leakage, increased energy waste, shortened service life of flow control valves, and increased maintenance costs, the embodiments of this application provide the following solutions.

[0024] Please refer to the following: Figures 1 to 5This application provides a wear-resistant flow regulating valve, which includes a valve body 1, a pipe body 11, a valve plate 12, a valve stem 13, a flange 17, and an air-filled sealing assembly 2. The valve body 1 is mounted on the pipe body 11, the valve stem 13 is movably mounted on the valve body 1, the valve plate 12 is mounted on the valve stem 13, the flange 17 is mounted on the pipe body 11, the air-filled sealing assembly 2 is mounted on the pipe body 11, and a handwheel 14 is rotatably mounted on the valve stem 13.

[0025] In some embodiments, please refer to the following: Figures 2 to 5 The inflatable sealing assembly 2 includes a circular abutment block 24, a semi-circular inflatable sealing ring 21, an inflation port 22, and an air pump 23. The circular abutment block 24 is disposed on the pipe body 11, the semi-circular inflatable sealing ring 21 is disposed on the pipe body 11, one end of the inflation port 22 passes through the pipe body 11 and is disposed on the semi-circular inflatable sealing ring 21, and the air pump 23 is disposed on the end of the inflation port 22 away from the semi-circular inflatable sealing ring 21. A hard sealing assembly 3 is disposed on the end of the circular abutment block 24 near the valve plate 12. The sealing assembly includes a first hard sealing ring 31 and a second hard sealing ring 32. The system includes a soft sealing connector 33 and a spring 34. A first hard sealing ring 31 is mounted on the annular abutment block 24. One end of the spring 34 is mounted on the first hard sealing ring 31, and a second hard sealing ring 32 is mounted on the other end of the spring 34. One end of the soft sealing connector 33 is mounted on the first hard sealing ring 31, and the other end of the soft sealing connector 33 is mounted on the second hard sealing ring 32. A soft sealing gasket 4 is mounted on the end of the second hard sealing ring 32 away from the spring 34. The soft sealing gasket 4 is made of silicone rubber material, and a semi-circular inflatable sealing ring 21 abuts against the soft sealing gasket 4.

[0026] With this configuration, when using a wear-resistant flow regulating valve to control the flow rate of the medium in pipe 11, during the closing of valve plate 12, the air pump 23 is turned on, and air is injected into the semi-circular inflatable sealing ring 21 through the air inlet 22. Valve plate 12 abuts against the semi-circular inflatable sealing ring 21, while the circular abutment plate 16 restricts the semi-circular inflatable sealing ring 21, ensuring a tight fit between them. After inflation, the semi-circular inflatable sealing ring 21 expands, tightly fitting the surface of valve plate 12, filling minor unevenness and gaps, thus achieving a more reliable sealing effect. Simultaneously, during the downward movement of valve plate 12, firstly... The valve plate 12 abuts against the soft sealing gasket 4, reducing the friction between the valve plate 12 and the hard sealing component 3. The soft sealing gasket 4 abuts against the second hard sealing ring 32. The second hard sealing ring 32 compresses the spring 34, which abuts against the soft sealing connector 33, thus tightening the gap between the second hard sealing ring 32, the first hard sealing ring 31, and the soft sealing connector 33. Two circular abutting plates 16 are provided on the pipe body 11, and hard sealing components 3 are provided on both circular abutting plates. The springs 34 at both ends work together to achieve better sealing. At the same time, the hard sealing component 3 provides elastic support rings at both ends of the semi-circular inflatable sealing ring 21, improving the sealing performance of the semi-circular inflatable sealing ring 21. Thus, after inflation, the semi-circular inflatable sealing ring 21 expands, tightly fitting the surface of the valve plate 12 and filling minor unevenness and gaps, thereby achieving a more reliable sealing effect. The valve plate 12 first abuts against the soft sealing gasket 4, reducing direct friction between the valve plate 12 and the hard sealing assembly 3, thus reducing wear. At the same time, the soft sealing gasket 4 can adapt to the minor unevenness on the surface of the valve plate 12, further enhancing the sealing performance. The hard sealing assembly 3 provides elastic support at both ends of the semi-circular inflatable sealing ring 21, enhancing the stability of the seal. Furthermore, the cooperation between the hard sealing assembly 3 and the soft sealing gasket 4 makes the sealing effect more reliable. Through the buffering effect of the soft sealing gasket 4 and the inflatable sealing ring, the direct friction between the valve plate 12 and the hard sealing component 3 is greatly reduced, thereby extending the service life of the seal and the valve plate 12. The inflatable sealing ring can adjust the sealing pressure in real time according to the actual working conditions (such as pressure changes and temperature changes) to ensure that the valve maintains stable sealing performance during valve closure or regulation. This design can effectively prevent media leakage, especially when dealing with flammable, explosive or toxic media, significantly improving the safety of the system. The replacement of the inflatable sealing ring and the soft sealing gasket 4 is relatively simple, without the need for complex disassembly and maintenance of the entire valve.

[0027] In some embodiments, please refer to the following: Figures 1 to 2A support frame 15 is provided on the valve stem 13, and an abutment plate 16 is fixedly provided on the valve plate 12. The abutment plate 16 has a connection hole and is slidably mounted on the support frame 15 through the connection hole. A wear-resistant weld overlay layer is provided on the valve plate 12, and a rubber plate is attached to the pipe body 11. A cleaning soft protrusion 5 is provided on the valve plate 12. The cleaning soft protrusion 5 has a semi-circular structure and is made of polyurethane rubber material.

[0028] This configuration, with its abutment plate 16, helps alleviate the mechanical impact between the valve plate 12 and the semi-circular inflatable sealing gasket. Simultaneously, the abutment plate 16's vertical movement along the support frame 15 helps reduce vibration. The cleaning protrusions on the valve plate 12 facilitate cleaning of the soft sealing gasket 4 during its vertical movement. Thus, the abutment plate 16, slidably mounted on the support frame 15 via the connecting hole, effectively alleviates the mechanical impact between the valve plate 12 and the semi-circular inflatable sealing gasket. This design reduces the direct impact of the valve plate 12 on the sealing gasket during closure, thereby reducing gasket wear. The wear-resistant weld overlay on the valve plate 12 further enhances its wear resistance and extends its service life, especially when handling media containing particles or fibers. The abutment plate 16's vertical movement along the support frame 15 makes the valve plate 12's movement smoother, reducing noise and equipment fatigue caused by mechanical vibration. This design helps reduce the impact of the valve plate 12 during closure or... The vibration generated during the adjustment process improves the operational stability of the valve. The cleaning soft protrusions 5 (made of polyurethane rubber) on the valve plate 12 can clean the soft sealing gasket 4 during the up and down movement of the valve plate 12. This design can effectively remove impurities and particles from the surface of the soft sealing gasket 4, preventing poor sealing caused by the accumulation of impurities. Through the cleaning action of the cleaning soft protrusions 5, impurities and particles on the surface of the soft sealing gasket 4 can be removed in time, thereby reducing the wear of the sealing gasket caused by the accumulation of impurities. By reducing mechanical impact, reducing vibration and keeping the sealing gasket clean, this design can significantly reduce the risk of leakage and improve the overall reliability of the system.

[0029] The implementation principle of a wear-resistant flow regulating valve in this application embodiment is as follows: When using the wear-resistant flow regulating valve to control the flow rate of the medium in the pipe body 11, during the process of closing the valve plate 12, the air pump 23 is turned on, and air is injected into the semi-circular inflatable sealing ring 21 through the air inlet 22. The valve plate 12 abuts against the semi-circular inflatable sealing ring 21, and at the same time, the circular abutment plate 16 restricts the semi-circular inflatable sealing ring 21, so that the semi-circular inflatable sealing ring 21 and the valve plate 12 are tightly fitted. After inflation, the semi-circular inflatable sealing ring 21 expands and can tightly fit the surface of the valve plate 12, filling the small unevenness and gaps, thereby achieving a more reliable sealing effect. At the same time, during the downward movement of the valve plate 12, the valve plate 12 first abuts against the soft sealing gasket 4, reducing the friction between the valve plate 12 and the hard sealing component 3, and the soft sealing gasket 4 abuts against the second... The hard sealing ring 32 abuts against the soft sealing connector 33, and the second hard sealing ring 32 presses against the spring 34, compressing the gap between the second hard sealing ring 32, the first hard sealing ring 31, and the soft sealing connector 33. Two circular abutting plates 16 are provided on the tube body 11, and hard sealing components 3 are provided on both circular abutting plates. The springs 34 at both ends compress together to achieve better sealing. At the same time, the hard sealing components 3 are equivalent to providing elastic support rings at both ends of the soft sealing gasket 4, improving the sealing performance of the semi-circular inflatable sealing ring 21. The abutting plate 16 helps to alleviate the mechanical impact between the valve plate 12 and the semi-circular inflatable sealing gasket. At the same time, the abutting plate 16 moves up and down along the support frame 15 to help reduce vibration. The cleaning protrusions on the valve plate 12 help to clean the soft sealing gasket 4 during the up and down movement of the valve plate 12.

[0030] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A wear-resistant flow regulating valve, characterized in that: The system includes a valve body (1), a pipe body (11), a valve plate (12), a valve stem (13), a flange (17), and an inflatable sealing assembly (2). The valve body (1) is mounted on the pipe body (11), the valve stem (13) is movably mounted on the valve body (1), the valve plate (12) is mounted on the valve stem (13), and the flange (17) is mounted on the pipe body (11). The inflatable sealing assembly (2) includes an annular abutment block (24) and a semi-circular... The device includes an annular inflatable sealing ring (21), an inflation port (22), and an air pump (23). The annular abutment block (24) is mounted on the pipe body (11). The semi-circular inflatable sealing ring (21) is mounted on the pipe body (11). One end of the inflation port (22) passes through the pipe body (11) and is mounted on the semi-circular inflatable sealing ring (21). The air pump (23) is mounted on the end of the inflation port (22) away from the semi-circular inflatable sealing ring (21).

2. The wear-resistant flow regulating valve according to claim 1, characterized in that: A hard sealing component (3) is provided on one end of the annular abutment block (24) near the valve plate (12). The sealing component includes a first hard sealing ring (31), a second hard sealing ring (32), a soft sealing connector (33), and a spring (34). The first hard sealing ring (31) is provided on the annular abutment block (24). One end of the spring (34) is provided on the first hard sealing ring (31), and the second hard sealing ring (32) is provided on the other end of the spring (34). One end of the soft sealing connector (33) is provided on the first hard sealing ring (31), and the other end of the soft sealing connector (33) is provided on the second hard sealing ring (32).

3. The wear-resistant flow regulating valve according to claim 2, characterized in that: A soft sealing pad (4) is provided on the end of the second hard sealing ring (32) away from the spring (34). The soft sealing pad (4) is made of silicone rubber material, and the semi-circular inflatable sealing ring (21) abuts against the soft sealing pad (4).

4. The wear-resistant flow regulating valve according to claim 3, characterized in that: A support frame (15) is provided on the valve stem (13), and an abutment plate (16) is fixedly provided on the valve plate (12). A connection hole is provided on the abutment plate (16), and the abutment plate (16) is slidably mounted on the support frame (15) through the connection hole.

5. The wear-resistant flow regulating valve according to claim 4, characterized in that: The valve plate (12) is provided with a wear-resistant weld overlay layer, and the pipe body (11) is attached with a rubber plate.

6. The wear-resistant flow regulating valve according to claim 5, characterized in that: The valve plate (12) is provided with a cleaning soft protrusion (5), which has a semi-circular structure and is made of polyurethane rubber material.

7. The wear-resistant flow regulating valve according to claim 6, characterized in that: A handwheel (14) is rotatably mounted on the valve stem (13).

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