High temperature wear resistant flat valve with active cooling structure

Abstract

The application discloses a high-temperature wear-resistant flat valve with an active cooling structure and relates to the technical field of flat valves.The flat valve comprises a valve seat, a retraction cavity is arranged on the upper side of the valve seat, a valve plate is slidably connected in the valve seat, the valve plate can be retracted into the retraction cavity, a cooling assembly is arranged in the retraction cavity, and a cooling cavity is arranged in the valve plate, wherein the cooling cavity is communicated with a valve plate cooling liquid outlet pipe and a valve plate cooling liquid inlet pipe.The application sets the cooling assembly in the retraction cavity, the cooling assembly cools the valve plate when the valve plate is located in the retraction cavity, the heat of the valve plate is taken away, cooling is completed, and the cooling cavity continuously flows through the cooling liquid to cool the valve plate when the valve plate is used for sealing the valve.

Description

Technical Field

[0001] This invention relates to the field of flat plate valve technology, specifically a high-temperature wear-resistant flat plate valve with an active cooling structure. Background Technology

[0002] Flat plate valves, as key control components in fluid transport systems, are widely used in industries such as chemical, metallurgical, and energy. Their performance directly affects the operational stability of the entire system. Under high-temperature conditions (such as high-temperature steam and molten media transport), traditional flat plate valves face several technical bottlenecks: Firstly, the valve plate and seat are constantly exposed to high temperatures, causing the material to deform thermally, leading to decreased sealing surface precision and media leakage. Secondly, high temperatures exacerbate friction and wear between the valve plate and seat, accelerating the aging and failure of seals and shortening valve lifespan. Furthermore, existing flat plate valves often lack effective active cooling mechanisms, relying solely on the material's inherent heat resistance, which fails to provide targeted cooling. When the temperature exceeds a threshold, problems such as valve jamming and operational malfunction can easily occur, severely impacting the safe operation of the system.

[0003] To address the aforementioned issues, there is an urgent need to develop a flat plate valve with active cooling, high-temperature wear resistance, and stable sealing performance. This would enable precise cooling of key valve components, alleviate thermal deformation and wear, and ensure long-term reliable operation of the valve under high-temperature conditions. Summary of the Invention

[0004] This invention provides a high-temperature wear-resistant flat plate valve with an active cooling structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A high-temperature wear-resistant flat plate valve with an active cooling structure includes a valve seat, a retraction chamber on the upper side of the valve seat, a valve plate slidably connected inside the valve seat, the valve plate being able to retract into the retraction chamber, a cooling assembly inside the retraction chamber, a cooling chamber inside the valve plate, and the cooling chamber being connected to a valve plate cooling outlet pipe and a valve plate cooling inlet pipe.

[0006] Preferably, a sealing ring is provided at the connection between the valve seat and the retraction cavity, the sealing ring is fixedly connected to the valve seat, and the sealing ring is disposed on the outer periphery of the valve plate.

[0007] Preferably, an adjusting rod is rotatably connected to the upper end of the valve plate, the adjusting rod is threaded to the upper end of the retraction cavity, and an adjusting wheel is fixedly connected to one end of the adjusting rod located outside the retraction cavity.

[0008] Preferably, the valve plate cooling inlet pipe is connected to the first end of the flow regulating component, the second end of the flow regulating component is connected to the coolant tank, the coolant tank is fixedly connected to the valve seat, the third end of the flow regulating component is connected to a return pipe, the return pipe is connected to the valve plate cooling outlet pipe, and both the valve plate cooling outlet pipe and the return pipe are connected to one end of a manifold, which is connected to the coolant tank.

[0009] Preferably, the fluid flow regulating component includes a regulating housing, which is provided with a first connection port, a second connection port, and a third connection port. The first connection port is connected to the coolant tank, the third connection port is connected to the valve plate cooling inlet pipe, and the second connection port is connected to the return pipe.

[0010] Preferably, a temperature control adjustment rod is provided in the third connection port, a filler is provided in the temperature control adjustment rod, a sealing piston is connected to the front end of the filler, the sealing piston is slidably connected in the third connection port, a liquid flow channel is provided in the third connection port, the sealing piston can slide to the upper end of the liquid flow channel, a first spring is provided on the sealing piston, and the two ends of the first spring respectively abut against the adjustment housing and the sealing piston; A sealing head is slidably connected inside the second connection port. A narrow hole is provided at one end of the second connection port facing the inner side of the adjustment housing. The sealing head is located on one side of the narrow hole. A second spring is provided between the sealing head and the end of the second connection port away from the adjustment housing. The two ends of the second spring abut against the sealing head and the second connection port, respectively.

[0011] Preferably, a flow equalization plate is provided at the connection between the cooling chamber and the valve plate cooling outlet pipe and the valve plate cooling inlet pipe, and the flow equalization plate is provided with a plurality of small holes.

[0012] Preferably, the cooling assembly is connected to a coolant inlet, the coolant inlet passes through the retraction chamber, and the retraction chamber is connected to a coolant outlet.

[0013] Preferably, the cooling assembly includes a fixing ring fixedly connected to a valve seat, a coolant inlet fixedly connected to the fixing ring, an adjustment port provided on the coolant inlet, a connecting pipe connected to the adjustment port, a plurality of annular pipes connected to the connecting pipes, the annular pipes being disposed inside the housing of the cooling assembly, and a plurality of nozzles provided on the annular pipes, the nozzles facing the inner side of the housing of the cooling assembly.

[0014] Preferably, a spring sheet is provided inside the coolant inlet. The spring sheet has a ring-shaped structure and is connected to the inner wall of the coolant inlet. A movable ring is connected to the spring sheet and is slidably connected to the inner wall of the coolant inlet. A limit groove is provided on the inner wall of the coolant inlet, and the movable ring is partially slidably connected to the limit groove. The movable ring is fixedly connected to an adjusting plate via a linkage rod. The adjusting plate is slidably connected to the coolant inlet, and a sealing plate is fixedly connected to the adjusting plate. The sealing plate is located on one side of the adjusting port.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: This application provides a cooling component within the retraction cavity. When the valve plate is located within the retraction cavity, the cooling component cools the valve plate, carrying away its heat and completing the cooling process. When the valve plate is used to seal the valve, coolant continuously flows through the cooling cavity to further cool the valve plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the cooling chamber connection structure of the present invention; Figure 3 This is a schematic diagram of the flow regulation component structure of the present invention; Figure 4 This is a schematic diagram of the flow tank structure of the present invention; Figure 5 This is a schematic diagram of the cooling component structure of the present invention; Figure 6 This is a schematic diagram of the coolant inlet structure of the present invention.

[0017] In the diagram: 1. Valve seat; 2. Valve plate; 3. Retraction chamber; 4. Cooling assembly; 5. Coolant inlet; 6. Coolant outlet; 7. Adjusting rod; 8. Adjusting wheel; 9. Cooling chamber; 10. Valve plate cooling outlet pipe; 11. Valve plate cooling inlet pipe; 12. Return pipe; 13. Flow regulating assembly; 14. Coolant tank; 15. Manifold; 16. Adjusting housing; 17. First connection port; 18. Second connection port; 19. Third connection port; 20. Temperature control adjusting rod; 21. Sealing piston; 22. First spring; 23. Second spring; 24. Sealing head; 25. Flow tank; 26. Fixing ring; 27. Connecting pipe; 28. Annular pipe; 29. ​​Nozzle; 30. Adjusting plate; 31. Adjusting port; 32. Sealing plate; 33. Spring; 34. Movable ring; 35. Limiting groove. Detailed Implementation

[0018] In this invention, the terms "first," "second," etc., are used for descriptive purposes only and do not specifically refer to any order or sequence, nor are they intended to limit the invention. They are merely used to distinguish protective components or operations described using the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0019] Example 1: Please refer to Figure 1 , Figure 2 A high-temperature wear-resistant flat plate valve with an active cooling structure includes a valve seat 1, a retraction chamber 3 on the upper side of the valve seat 1, a valve plate 2 slidably connected inside the valve seat 1, the valve plate 2 being able to retract into the retraction chamber 3, a cooling assembly 4 being provided inside the retraction chamber 3, a cooling chamber 9 being provided inside the valve plate 2, and the cooling chamber 9 being connected to a valve plate cooling outlet pipe 10 and a valve plate cooling inlet pipe 11.

[0020] A sealing ring is provided at the connection between the valve seat 1 and the retraction cavity 3. The sealing ring is fixedly connected to the valve seat 1 and is located on the outer periphery of the valve plate 2.

[0021] An adjusting rod 7 is rotatably connected to the upper end of the valve plate 2. The adjusting rod 7 is threaded to the upper end of the retraction cavity 3. An adjusting wheel 8 is fixedly connected to one end of the adjusting rod 7 located outside the retraction cavity 3.

[0022] The working principle and beneficial effects of the above scheme are as follows: By setting a cooling component 4 in the retraction cavity 3, when the valve plate 2 is located in the retraction cavity 3, the cooling component 4 cools the valve plate 2 and removes the heat from the valve plate 2, thus completing the cooling. When the valve plate 2 is used to seal the valve, coolant continuously flows through the cooling cavity 9 to cool the valve plate 2. In use, rotating the adjusting wheel 8 causes the adjusting rod 7 to rotate around the threaded hole at the upper end of the retraction cavity 3. Since the adjusting rod 7 is rotatably connected to the upper end of the valve plate 2, the threaded transmission is converted into the linear motion of the valve plate 2: when the adjusting wheel 8 rotates clockwise, the adjusting rod 7 moves downward, and the valve plate 2 slides from the retraction cavity 3 into the valve seat 1, thus closing the valve; when the adjusting wheel 8 rotates counterclockwise, the adjusting rod 7 is pulled upward, and the valve plate 2 retracts into the retraction cavity 3, thus opening the valve.

[0023] The sealing ring at the connection between valve seat 1 and retraction chamber 3 is tightly attached to the outer periphery of valve plate 2. When the valve is closed, the sealing ring is pressed by valve plate 2 to form a reliable seal, preventing the leakage of high-temperature medium in valve seat 1 and avoiding the overflow of coolant in retraction chamber 3, thus ensuring the independence of sealing performance and cooling system.

[0024] Example 2: Please refer to Figure 3 , Figure 4 Based on Embodiment 1, the valve plate cooling inlet pipe 11 is connected to the first end of the flow regulating component 13, the second end of the flow regulating component 13 is connected to the coolant tank 14, the coolant tank 14 is fixedly connected to the valve seat 1, the third end of the flow regulating component 13 is connected to the return pipe 12, the return pipe 12 is connected to the valve plate cooling outlet pipe 10, and both the valve plate cooling outlet pipe 10 and the return pipe 12 are connected to one end of the manifold 15, which is connected to the coolant tank 14.

[0025] The fluid flow regulating assembly 13 includes an regulating housing 16, which is provided with a first connection port 17, a second connection port 18, and a third connection port 19. The first connection port 17 is connected to the coolant tank 14, the third connection port 19 is connected to the valve plate cooling inlet pipe 11, and the second connection port 18 is connected to the return pipe 12.

[0026] A temperature control adjustment rod 20 is provided inside the third connection port 19. A filler is provided inside the temperature control adjustment rod 20. A sealing piston 21 is connected to the front end of the filler. The sealing piston 21 is slidably connected inside the third connection port 19. A liquid flow channel 25 is provided inside the third connection port 19. The sealing piston 21 can slide to the upper end of the liquid flow channel 25. A first spring 22 is provided on the sealing piston 21. The two ends of the first spring 22 abut against the adjustment housing 16 and the sealing piston 21, respectively. A sealing head 24 is slidably connected inside the second connection port 18. A narrow hole is provided at one end of the second connection port 18 facing the inside of the adjustment housing 16. The sealing head 24 is located on one side of the narrow hole. A second spring 23 is provided between the sealing head 24 and the end of the second connection port 18 away from the adjustment housing 16. The two ends of the second spring 23 abut against the sealing head 24 and the second connection port 18, respectively.

[0027] A flow equalization plate is provided at the connection between the cooling chamber 9 and the valve plate cooling outlet pipe 10 and the valve plate cooling inlet pipe 11. The flow equalization plate is provided with several small holes.

[0028] The working principle and beneficial effects of the above scheme are as follows: The coolant tank 14 stores high-temperature resistant coolant. During valve operation, the coolant enters the regulating housing 16 through the first connection port 17 of the flow regulating component 13.

[0029] When the temperature of valve plate 2 is low and below the preset threshold, the volume of the heat-sensitive filler in the temperature control rod 20 is small. Under the elastic force of the first spring 22, the sealing piston 21 partially blocks the flow channel 25, the flow area of ​​the third connection port 19 is small, and the flow rate of coolant entering the valve plate cooling inlet pipe 11 is small. At the same time, the coolant pressure in the regulating housing 16 is high, the sealing head 24 is far away from the narrow hole of the second connection port 18, the flow area of ​​the return pipe 12 is large, and most of the coolant directly flows back to the coolant tank 14 through the return pipe 12 and the manifold pipe 15, saving energy.

[0030] When the temperature of valve plate 2 rises above the preset threshold, the heat-sensitive filler in the temperature control rod 20 expands due to heat, the first spring 22 is compressed, the flow area of ​​the flow channel 25 increases, and more coolant enters the valve plate cooling inlet pipe 11 through the third connection port 19; the coolant enters the cooling chamber 9 evenly through the small holes of the flow equalization plate, exchanges heat with the inside of valve plate 2, and the coolant after absorbing heat flows into the manifold pipe 15 through the valve plate cooling outlet pipe 10, and finally flows back to the coolant tank 14, completing the internal cooling of valve plate 2.

[0031] During this process, the pressure of the coolant in the housing 16 acting on the plug head 24 is reduced, causing the plug head 24 to approach the narrow hole, reducing the flow area of ​​the return pipe 12, reducing coolant diversion, and ensuring the coolant supply to the cooling chamber 9.

[0032] Example 3: Please refer to Figure 5 , Figure 6 Based on embodiments 1 and 2, the cooling component 4 is connected to a coolant inlet 5, which penetrates the retraction cavity 3, and the retraction cavity 3 is connected to a coolant outlet 6.

[0033] The cooling assembly 4 includes a fixing ring 26, which is fixedly connected to the valve seat 1. A coolant inlet 5 is fixedly connected to the fixing ring 26. An adjustment port 31 is provided on the coolant inlet 5. A connecting pipe 27 is connected to the adjustment port 31. A plurality of annular pipes 28 are connected to the connecting pipe 27. The annular pipes 28 are disposed inside the housing of the cooling assembly 4. A plurality of nozzles 29 are provided on the annular pipes 28, and the nozzles 29 face the inner side of the housing of the cooling assembly 4.

[0034] A spring sheet 33 is provided inside the coolant inlet 5. The spring sheet 33 has a ring structure and is connected to the inner wall of the coolant inlet 5. A movable ring 34 is connected to the spring sheet 33 and is slidably connected to the inner wall of the coolant inlet 5. A limit groove 35 is provided on the inner wall of the coolant inlet 5. The movable ring 34 is partially slidably connected to the limit groove 35. The movable ring 34 is fixedly connected to the adjusting plate 30 through a linkage rod. The adjusting plate 30 is slidably connected to the coolant inlet 5. A sealing plate 32 is fixedly connected to the adjusting plate 30 and is located on one side of the adjusting port 31.

[0035] The working principle and beneficial effects of the above scheme are as follows: The coolant inlet 5 of the cooling component 4 is connected to an external coolant supply source (or connected to the coolant tank 14, depending on actual needs). After the coolant enters the coolant inlet 5, it acts on the movable ring 34 on the spring 33.

[0036] When the coolant pressure is low, the deformation of the spring plate 33 is small, and the adjusting plate 30 is driven to the initial position through the linkage rod. The blocking area of ​​the sealing plate 32 on the adjusting port 31 is small, and the flow rate of coolant entering the connecting pipe 27 is large. The coolant is distributed to several annular pipes 28 through the connecting pipe 27, and sprayed onto the outer periphery of the valve plate 2 in the retraction cavity 3 through the nozzles 29 on the annular pipes 28 to externally cool the valve plate 2. The sprayed coolant is discharged through the coolant outlet 6 on the retraction cavity 3 (it can flow back to the coolant tank 14 for recycling).

[0037] When the coolant pressure is high, the deformation of the spring 33 is large, the blocking area of ​​the sealing plate 32 on the regulating port 31 becomes larger, and the flow rate of coolant entering the connecting pipe 27 is reduced. Through the above settings, the cooling effect of the valve plate 2 can be guaranteed, and over-cooling of the valve plate 2 can be avoided, thus ensuring the working stability of the cooling component 4.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-temperature wear-resistant flat plate valve with an active cooling structure, characterized in that, Includes a valve seat (1), a retraction chamber (3) is provided on the upper side of the valve seat (1), a valve plate (2) is slidably connected in the valve seat (1), the valve plate (2) can retract into the retraction chamber (3), a cooling assembly (4) is provided in the retraction chamber (3), a cooling chamber (9) is provided in the valve plate (2), and the cooling chamber (9) is connected to a valve plate cooling outlet pipe (10) and a valve plate cooling inlet pipe (11); The cooling component (4) is connected to a coolant inlet (5); A spring sheet (33) is provided inside the coolant inlet (5). The spring sheet (33) has a ring structure and is connected to the inner wall of the coolant inlet (5). A movable ring (34) is connected to the spring sheet (33). The movable ring (34) is slidably connected to the inner wall of the coolant inlet (5). A limit groove (35) is provided on the inner wall of the coolant inlet (5). The movable ring (34) is partially slidably connected to the limit groove (35). The movable ring (34) is fixedly connected to the adjusting plate (30) through a linkage rod. The adjusting plate (30) is slidably connected to the coolant inlet (5). A sealing plate (32) is fixedly connected to the adjusting plate (30). The sealing plate (32) is located on one side of the adjusting port (31). When the coolant pressure is low, the deformation of the spring (33) is small, and the adjusting plate (30) is driven to the initial position through the linkage rod. The blocking area of ​​the sealing plate (32) on the adjusting port (31) is small, and the flow rate of the coolant entering is large. When the coolant pressure is high, the deformation of the spring (33) is large, the blocking area of ​​the sealing plate (32) on the regulating port (31) becomes larger, and the flow rate of the incoming coolant decreases.

2. The high-temperature wear-resistant flat plate valve with an active cooling structure according to claim 1, characterized in that, A sealing ring is provided at the connection between the valve seat (1) and the retraction cavity (3). The sealing ring is fixedly connected to the valve seat (1) and is located on the outer periphery of the valve plate (2).

3. The high-temperature wear-resistant flat plate valve with an active cooling structure according to claim 1, characterized in that, The valve plate (2) is rotatably connected to an adjusting rod (7), which is threaded to the upper end of the retraction cavity (3). The end of the adjusting rod (7) located outside the retraction cavity (3) is fixedly connected to an adjusting wheel (8).

4. A high-temperature wear-resistant flat plate valve with an active cooling structure according to claim 1, characterized in that, The valve plate cooling inlet pipe (11) is connected to the first end of the flow regulating component (13), the second end of the flow regulating component (13) is connected to the coolant tank (14), the coolant tank (14) is fixedly connected to the valve seat (1), the third end of the flow regulating component (13) is connected to the return pipe (12), the return pipe (12) is connected to the valve plate cooling outlet pipe (10), and both the valve plate cooling outlet pipe (10) and the return pipe (12) are connected to one end of the manifold (15), which is connected to the coolant tank (14).

5. A high-temperature wear-resistant flat plate valve with an active cooling structure according to claim 4, characterized in that, The fluid flow regulating component (13) includes a regulating housing (16), which is provided with a first connection port (17), a second connection port (18), and a third connection port (19). The first connection port (17) is connected to the coolant tank (14), the third connection port (19) is connected to the valve plate cooling inlet pipe (11), and the second connection port (18) is connected to the return pipe (12).

6. A high-temperature wear-resistant flat plate valve with an active cooling structure according to claim 5, characterized in that, A temperature control adjustment rod (20) is provided in the third connection port (19), and a filler is provided in the temperature control adjustment rod (20). A sealing piston (21) is connected to the front end of the filler. The sealing piston (21) is slidably connected in the third connection port (19). A liquid flow channel (25) is provided in the third connection port (19). The sealing piston (21) can slide to the upper end of the liquid flow channel (25). A first spring (22) is provided on the sealing piston (21). The two ends of the first spring (22) abut against the adjustment housing (16) and the sealing piston (21) respectively. A sealing head (24) is slidably connected inside the second connection port (18). A narrow hole is provided at one end of the second connection port (18) facing the inside of the adjustment housing (16). The sealing head (24) is located on one side of the narrow hole. A second spring (23) is provided between the sealing head (24) and the end of the second connection port (18) away from the adjustment housing (16). The two ends of the second spring (23) abut against the sealing head (24) and the second connection port (18) respectively.

7. A high-temperature wear-resistant flat plate valve with an active cooling structure according to claim 6, characterized in that, A flow equalization plate is provided at the connection between the cooling chamber (9) and the valve plate cooling outlet pipe (10) and the valve plate cooling inlet pipe (11), and the flow equalization plate is provided with several small holes.

8. A high-temperature wear-resistant flat plate valve with an active cooling structure according to claim 1, characterized in that, The coolant inlet (5) passes through the retraction chamber (3), and the coolant outlet (6) is connected to the retraction chamber (3).

9. A high-temperature wear-resistant flat plate valve with an active cooling structure according to claim 8, characterized in that, The cooling assembly (4) includes a fixing ring (26), which is fixedly connected to the valve seat (1). A coolant inlet (5) is fixedly connected to the fixing ring (26). An adjustment port (31) is provided on the coolant inlet (5). A connecting pipe (27) is connected to the adjustment port (31). A plurality of annular pipes (28) are connected to the connecting pipe (27). The annular pipes (28) are located inside the housing of the cooling assembly (4). A plurality of nozzles (29) are provided on the annular pipes (28). The nozzles (29) face the inside of the housing of the cooling assembly (4).

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