Special double-plate adjusting high-temperature butterfly valve for ultra-high-speed wind tunnel

Abstract

The invention discloses a special double-plate adjusting high-temperature butterfly valve for an ultra-high-speed wind tunnel, and belongs to the technical field of ultra-high-speed wind tunnel testing butterfly valves. The butterfly valve comprises a pipe body, a control box is fixedly connected to the upper surface of the pipe body, plate bodies are rotationally arranged in the pipe body, and the plate bodies are symmetrically distributed on the two sides of the pipe body; a handle for controlling the board body is rotationally arranged on the side surface of the control box; the upper surface of the pipe body is fixedly connected with a cooling box, and the left side surface of the cooling box is fixedly connected with a water pump; an inner plate is fixedly connected to the inner wall of the cooling box. According to the double-plate adjusting high-temperature butterfly valve special for the ultra-high-speed wind tunnel, in the using process of the pipe body, the water pump works, water flow circularly flows in the heat dissipation circulating pipe and the cooling box at the moment, the water cooling effect is achieved, in the process, the water wheel is impacted by the water flow, the connecting shaft and the blades are in the rotating state at the moment, the blades play the role of shaking the water flow, and the water cooling effect is achieved. Heat dissipation of water flow is facilitated, and the water flow heat dissipation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of ultra-high-speed wind tunnel test butterfly valves, in particular to a double-plate regulating high-temperature butterfly valve specially used for ultra-high-speed wind tunnels. Background Art

[0002] The ultra-high-speed wind tunnel is a test system that can test the performance of new materials of ultra-high-speed aircraft under extreme conditions such as high temperature, high pressure, and high-speed airflow. In the ultra-high-speed wind tunnel test, the butterfly valve is one of the important accessories. During the test, a double-plate butterfly valve is required to control and adjust the airflow. At the same time, the double-plate butterfly valve also plays a role in stabilizing the airflow in the ultra-high-speed wind tunnel test. During the ultra-high-speed wind tunnel test, the butterfly valve will be in a high-temperature state. When the butterfly valve is in a high-temperature state for a long time, it will affect the subsequent use of the butterfly valve. In order to overcome the above Defects, prior art 1 (application number 202222496119.5, Chinese patent application filed on 2022-09-21) A high-temperature resistant bidirectional metal sealed butterfly valve, which can make the valve body have better high-temperature resistance when connected to external pipeline equipment, prior art 2 (application number 202322381718.7, Chinese patent application filed on 2023-09-04) A high-temperature and high-pressure butterfly valve, which uses a small refrigerator and a cooling pipe as well as a heat conduction cavity and a heat conduction plate to make When the high-temperature and high-pressure butterfly valve is used to block the high-temperature medium, the small refrigerator can work and cool the coolant in the cooling pipe, and form a cycle through the cooling pipe and the connecting pipe, and then conduct it through the heat conduction cavity and the heat conduction plate, thereby reducing the temperature inside the butterfly valve body, avoiding the deformation of the butterfly valve body due to the high temperature, thereby affecting the overall sealing effect of the butterfly valve, and ensuring the high-temperature resistance of the butterfly valve. Prior art 3 (Chinese patent application with application number 202020941518.6 and application date 2020-05-28) Please) A new type of high-temperature resistant hard-sealed butterfly valve. In terms of structure, when the butterfly valve is in use, the flange cooperates with the high-temperature resistant sealing ring to provide hardness and efficient sealing to the whole, ensuring that metal deformation and aging are avoided after long-term use. Furthermore, the butterfly valve cooperates with the hard-tight butterfly plate to completely block the water. When the valve shaft is driven to drive the connected tight butterfly plate, the lower end pressure cover at the lower end provides a support point and cooperates with the upper end guide seat to drive it to rotate, so that water at both ends can circulate, optimizing the cooling and heat dissipation effect.

[0003] However, during use, a single cooling structure is difficult to dissipate heat quickly, that is, it is difficult to ensure that the butterfly valve can work for a long time. After the water-cooling structure has worked for a long time, the temperature of the liquid itself will rise. The butterfly valve in the above application does not have other auxiliary heat dissipation structures during use, nor does it have a liquid cooling structure, resulting in poor heat dissipation effect. At the same time, when the temperature of the butterfly valve is too high, it is necessary to remind the staff to stop the ultra-high-speed wind tunnel experiment. The butterfly valve in the above application does not have a high-temperature reminder structure, resulting in lower overall safety of the butterfly valve, which brings unnecessary trouble to the ultra-high-speed wind tunnel experiment. Summary of the invention

[0004] The purpose of the present invention is to provide a double-plate regulating high-temperature butterfly valve specially used for ultra-high-speed wind tunnels, so as to solve the problem proposed in the above-mentioned background technology that during use, there is no other auxiliary heat dissipation structure, and there is no liquid cooling structure, resulting in poor heat dissipation effect and no high-temperature reminder structure, resulting in low overall safety of the butterfly valve, which brings unnecessary troubles to ultra-high-speed wind tunnel experiments.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double-plate regulating high-temperature butterfly valve specially used for an ultra-high-speed wind tunnel, comprising a pipe body, the upper surface of the pipe body is fixedly connected to a control box, and a plate body is rotatably arranged inside the pipe body, and the plate bodies are symmetrically distributed on both sides of the pipe body, and a handle for controlling the plate body is rotatably arranged on the side of the control box; the upper surface of the pipe body is fixedly connected to a cooling box, and a water pump is fixedly connected to the left surface of the cooling box, and a heat dissipation circulation pipe is wound around the surface of the pipe body; an inner plate is fixedly connected to the inner wall of the cooling box, and a connecting shaft is rotatably arranged inside the inner plate, and a movable frame is connected to the interior of the cooling box through a reciprocating mechanism, and a blade is fixedly connected to the surface of the connecting shaft; a working plate is fixedly connected to the lower surface of the movable frame, and a heat conduction plate is fixedly connected to the upper surface of the movable frame; an outer frame is fixedly connected to the surface of the cooling box, and a sound piece is fixedly connected to the inner wall of the outer frame.

[0006] Preferably, the end of the heat dissipation circulation pipe is connected to the input end of the water pump, and the other side of the heat dissipation circulation pipe is arranged inside the cooling box, the blades are evenly distributed on the surface of the connecting shaft, and a water wheel is fixedly connected to the left side of the connecting shaft.

[0007] Preferably, the reciprocating mechanism comprises a tooth block fixedly connected to the inner wall of the movable frame, and a working gear meshing with the tooth block is fixedly connected to the surface of the connecting shaft, and the working gear is a non-full gear structure.

[0008] Preferably, an auxiliary plate is fixedly connected to the side of the movable frame, a limiting rod is fixedly connected to the inner wall of the inner plate, the limiting rod passes through the interior of the auxiliary plate, and the limiting rod and the auxiliary plate are slidably connected.

[0009] Preferably, the working plates are symmetrically distributed on both sides of the movable frame, and through holes are opened on the surface of the working plates, and the through holes are evenly spaced on the surface of the working plates.

[0010] Preferably, a box cover is movably provided on the upper surface of the cooling box, the heat conducting plate passes through the interior of the box cover, and the end of the heat conducting plate is located on the outside of the box cover, and water baffles sliding inside the box cover are provided on both sides of the heat conducting plate.

[0011] Preferably, a heat sink is fixedly connected to the surface of the heat conducting plate, and the heat sinks are evenly spaced on the surface of the heat conducting plate. The cooling box is a bottomless structure, and a sealing ring is fixedly connected to the surface of the cooling box, and the sealing ring is also fixedly connected to the surface of the tube body.

[0012] Preferably, a fixing plate is fixedly connected to the surface of the cooling box, a force-bearing plate is slidably arranged inside the fixing plate, and a second magnet is fixedly connected to the surface of the force-bearing plate.

[0013] Preferably, a circular plate is fixedly connected to the end of the connecting shaft, and a first magnet is fixedly connected to the surface of the circular plate, and the first magnets are distributed at equal angles on the surface of the circular plate.

[0014] Preferably, the magnetic poles of the first magnet and the second magnet at adjacent positions are the same, a knocking rod is fixedly connected to the surface of the force-bearing plate, and a connecting spring that plays an elastic reset role is fixedly connected to the surface of the force-bearing plate, and the other side of the connecting spring is fixedly connected to the surface of the fixed plate, and the surface of the knocking rod is convex, and the other end of the knocking rod slides through the fixed plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are: a new type of structural design is adopted to dissipate heat and cool down the pipe body through flowing water, and a connecting shaft and blades are also provided to cool down and dissipate the water flow inside the cooling box, thereby ensuring the heat dissipation effect of the water flow, and a reciprocating working plate, a heat conducting plate and a heat sink are also provided to optimize the heat dissipation and cooling effect of the water flow, and through holes are evenly spaced on the surface of the working plate to enable the water flow to flow better, and a knocking rod and a clicker are also provided to serve as a warning, and when the sound frequency of the clicker is high, it indicates that the temperature of the pipe body is high, and staff are required to deal with the current situation, thereby improving safety, and the specific contents are as follows: This ultra-high-speed wind tunnel special double-plate regulating high-temperature butterfly valve, when the pipe body is in use, the water pump works, and the water circulates in the heat dissipation circulation pipe and the cooling box, playing a role of water cooling. In this process, the water wheel is impacted by the water flow, and the connecting shaft and blades are in a rotating state. The blades play a role of shaking the water flow, which facilitates the heat dissipation of the water flow itself and improves the efficiency of the water flow heat dissipation.

[0016] Furthermore, when the connecting shaft rotates, the connecting shaft drives the working gear to rotate synchronously, and the working gear is a non-full gear structure. At this time, the movable frame makes reciprocating linear motion in the horizontal direction under the action of the working gear, gear block, auxiliary plate and limit rod. At this time, the movable frame drives the working plate to disturb the water flow, so that the water flow can dissipate its own heat, which is convenient for the water flow to dissipate heat to the pipe body, thereby improving work efficiency.

[0017] Furthermore, the heat conduction plate can absorb heat and transfer the heat to the heat sink, which discharges the heat inside the cooling box. During the movement of the movable frame, the heat conduction plate and the heat sink are also in a moving state. At this time, the heat sink can come into contact with more air, thereby better dissipating the heat, quickly reducing the heat inside the cooling box, and facilitating the subsequent use of the cooling box.

[0018] The double-plate regulating high-temperature butterfly valve specially used for ultra-high-speed wind tunnels will drive the circular plate to rotate synchronously when the connecting shaft rotates. When the circular plate rotates, it will drive the first magnet to intermittently approach the second magnet. At this time, the force-bearing plate will make reciprocating linear motion in the horizontal direction under the action of the repulsive magnetic force and the connecting spring, and the clicker will be in a state of intermittent sounding. At this time, the clicker serves as a sound warning and positioning, allowing the staff to quickly find the abnormal high-temperature area and deal with the location in time.

[0019] Furthermore, the surface of the knocking rod is convex, which limits the moving distance of the force-bearing plate and the knocking rod and ensures stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the connection structure between the pipe body and the control box of the present invention; Figure 2 It is a schematic diagram of the connection structure between the tube body and the plate body of the present invention; Figure 3 This is a schematic diagram of the structure of the tube body in a cutaway state of the present invention; Figure 4 This is a schematic diagram of the connection structure between the cooling box and the box cover of the present invention; Figure 5 This is a schematic diagram of the connection structure between the cooling box and the water pump of the present invention; Figure 6 This is a schematic diagram of the connecting structure of the connecting shaft and the blades of the present invention; Figure 7It is a schematic diagram of the connection structure between the heat conducting plate and the heat sink of the present invention; Figure 8 This is a schematic diagram of the through hole distribution structure of the present invention; Fig. 9 This is a schematic diagram of the connection structure between the cooling box and the sealing ring of the present invention; Fig.10 This is a schematic diagram of the connecting structure of the connecting shaft and the circular plate of the present invention; Fig.11 It is a schematic diagram of the connection structure between the force-bearing plate and the knocking rod of the present invention; Fig.12 It is a schematic diagram of the structure of the box cover in a cut-away state of the present invention.

[0021] In the figure: 1. pipe body; 2. control box; 3. handle; 4. plate body; 5. cooling box; 6. box cover; 7. water pump; 8. heat dissipation circulation pipe; 9. sealing ring; 10. inner plate; 11. connecting shaft; 12. water wheel; 13. blade; 14. movable frame; 15. limit rod; 16. gear block; 17. working gear; 18. auxiliary plate; 19. working plate; 20. through hole; 21. heat conduction plate; 22. heat sink; 23. round plate; 24. first magnet; 25. outer frame; 26. fixed plate; 27. clicker; 28. force plate; 29. ​​knock rod; 30. second magnet; 31. connecting spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The present invention provides the following technical solution: a double-plate regulating high-temperature butterfly valve specially used for an ultra-high-speed wind tunnel.

[0024] Embodiment 1: By setting the cooling box 5, the heat dissipation circulation pipe 8 and the water pump 7, the pipe body 1 can be quickly cooled. At the same time, a water flow disturbance structure is set to enable the water flow itself to quickly dissipate heat, such as Figure 1-Figure 6The tube body 1 is shown as including a tube body 1, a control box 2 is fixedly connected to the upper surface of the tube body 1, and a plate body 4 is rotatably arranged inside the tube body 1, and the plate bodies 4 are symmetrically distributed on both sides of the tube body 1, and a handle 3 for controlling the plate body 4 is rotatably arranged on the side of the control box 2; a cooling box 5 is fixedly connected to the upper surface of the tube body 1, and a water pump 7 is fixedly connected to the left surface of the cooling box 5, and a heat dissipation circulation pipe 8 is wound around the surface of the tube body 1; an inner plate 10 is fixedly connected to the inner wall of the cooling box 5, and a connecting shaft 11 is rotatably arranged inside the inner plate 10, and a movable frame 14 is connected to the interior of the cooling box 5 through a reciprocating mechanism, and a blade 13 is fixedly connected to the surface of the connecting shaft 11; The end of the heat dissipation circulation pipe 8 is connected to the input end of the water pump 7, and the other side of the heat dissipation circulation pipe 8 is arranged inside the cooling box 5, the blades 13 are evenly spaced on the surface of the connecting shaft 11, and the water wheel 12 is fixedly connected to the left side of the connecting shaft 11, the reciprocating mechanism includes a tooth block 16 fixedly connected to the inner wall of the movable frame 14, the surface of the connecting shaft 11 is fixedly connected to a working gear 17 meshing with the tooth block 16, and the working gear 17 is a non-full gear structure, the side of the movable frame 14 is fixedly connected to an auxiliary plate 18, the inner wall of the inner plate 10 is fixedly connected to a limit rod 15, and the limit rod 15 passes through the inside of the auxiliary plate 18, and the limit rod 15 and the auxiliary plate 18 are slidably connected, the lower surface of the movable frame 14 is fixedly connected to a working plate 19, the working plates 19 are symmetrically distributed on both sides of the movable frame 14, and the surface of the working plate 19 is provided with through holes 20, and the through holes 20 are evenly spaced on the surface of the working plate 19.

[0025] One end of the heat dissipation circulation pipe 8 is connected to the water pump 7, and the other end is located inside the cooling box 5. At the same time, a temperature sensing controller is arranged on the surface of the control box 2. When the temperature of the pipe body 1 exceeds the set value during use, the temperature sensing controller will start the water pump 7. At this time, the water flow circulates in the heat dissipation circulation pipe 8 and the cooling box 5, playing a role of water cooling. In this process, the water wheel 12 is impacted by the water flow. At this time, the connecting shaft 11 rotates inside the inner plate 10. When the connecting shaft 11 rotates, it drives the blades 13 to rotate synchronously. At this time, the blades 13 play a role of The water flow is shaken to facilitate the heat dissipation of the water flow itself and improve the efficiency of the heat dissipation of the water flow. When the connecting shaft 11 rotates, the connecting shaft 11 drives the working gear 17 to rotate synchronously, and the working gear 17 is a non-full gear structure. At this time, the movable frame 14 performs reciprocating linear motion in the horizontal direction under the action of the working gear 17, the tooth block 16, the auxiliary plate 18 and the limit rod 15. At this time, the movable frame 14 drives the working plate 19 to disturb the water flow, so that the water flow can dissipate its own heat, which is convenient for the water flow to dissipate the heat of the tube body 1 and improves the working efficiency.

[0026] Embodiment 2: Different from Embodiment 1, the heat inside the cooling box 5 can be quickly dissipated by the heat conducting plate 21 and the heat sink 22, which is convenient for heat dissipation of the cooling box 5. Figure 7 and Figure 8 as well as Fig.12 As shown, a heat conducting plate 21 is fixedly connected to the upper surface of the movable frame 14; a box cover 6 is movably provided on the upper surface of the cooling box 5, the heat conducting plate 21 passes through the interior of the box cover 6, and the end of the heat conducting plate 21 is located on the outside of the box cover 6, and both sides of the heat conducting plate 21 are provided with water-blocking plates sliding inside the box cover 6, the surface of the heat conducting plate 21 is fixedly connected to heat sinks 22, and the heat sinks 22 are evenly spaced on the surface of the heat conducting plate 21, the cooling box 5 is a bottomless structure, and a sealing ring 9 is fixedly connected to the surface of the cooling box 5, and the sealing ring 9 is fixedly connected to the surface of the tube body 1 at the same time.

[0027] The heat conducting plate 21 can absorb heat and transfer the heat to the heat sink 22, and the heat sink 22 discharges the heat inside the cooling box 5. During the movement of the movable frame 14, the heat conducting plate 21 and the heat sink 22 are also in a moving state. At this time, the heat sink 22 can contact with more air, thereby better dissipating the heat, and can quickly reduce the heat inside the cooling box 5, which is convenient for the subsequent use of the cooling box 5. The cooling box 5 is a bottomless design, which allows the liquid to directly contact the tube body 1, thereby optimizing the heat dissipation effect, and the sealing ring 9 prevents the liquid from flowing out. At the same time, a water-blocking plate is provided on the surface of the heat conducting plate 21 to prevent water from leaking through the box cover 6, thereby ensuring stability.

[0028] Embodiment 3: Different from Embodiment 2, a sounder 27 is provided to serve as a warning and reminder, so that the staff can quickly handle the abnormal high temperature position, such as Figure 9-11 As shown, the surface of the cooling box 5 is fixedly connected to an outer frame 25, and a sound plate 27 is fixedly connected to the inner wall of the outer frame 25, the surface of the cooling box 5 is fixedly connected to a fixed plate 26, and a force-bearing plate 28 is slidably arranged inside the fixed plate 26, and a second magnet 30 is fixedly connected to the surface of the force-bearing plate 28.

[0029] The end of the connecting shaft 11 is fixedly connected to a circular plate 23, and the surface of the circular plate 23 is fixedly connected to a first magnet 24, and the first magnet 24 is distributed at equal angles on the surface of the circular plate 23, and the magnetic poles of the first magnet 24 and the second magnet 30 at adjacent positions are the same, and the surface of the force-bearing plate 28 is fixedly connected to a knocking rod 29, and the surface of the force-bearing plate 28 is fixedly connected to a connecting spring 31 that plays an elastic reset role, and the other side of the connecting spring 31 is fixedly connected to the surface of the fixed plate 26, and the surface of the knocking rod 29 is convex, and the other end of the knocking rod 29 slides through the fixed plate 26.

[0030] When the connecting shaft 11 rotates, the connecting shaft 11 will drive the circular plate 23 to rotate synchronously. When the circular plate 23 rotates, it will drive the first magnet 24 to intermittently approach the second magnet 30. When the first magnet 24 approaches the second magnet 30, the force plate 28 moves towards the direction close to the clicker 27 under the action of the repulsive magnetic force. At this time, the connecting spring 31 is stretched, and when the circular plate 23 continues to rotate and drives the first magnet 24 away from the second magnet 30, the force plate 28 moves back under the action of the connecting spring 31. The above process is repeated. The force plate 28 performs reciprocating linear motion in the horizontal direction under the action of the repulsive magnetic force and the connecting spring 31, and then the clicker 27 is intermittently struck by the knocking rod 29, that is, the clicker 27 is in a state of intermittent sounding. At this time, the clicker 27 plays the role of sound warning and positioning, which can enable the staff to quickly find the abnormal high temperature area and deal with the position in time. At the same time, the surface of the knocking rod 29 is convex, which limits the moving distance of the force plate 28 and the knocking rod 29 and ensures stability.

[0031] The above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-plate regulating high-temperature butterfly valve for ultra-high-speed wind tunnels, comprising a tube body (1), the upper surface of the tube body (1) being fixedly connected to a control box (2), a plate body (4) being rotatably arranged inside the tube body (1), and the plate bodies (4) being symmetrically distributed on both sides of the tube body (1), and a handle (3) for controlling the plate body (4) being rotatably arranged on the side of the control box (2); Features: The upper surface of the tube body (1) is fixedly connected to a cooling box (5), the left side surface of the cooling box (5) is fixedly connected to a water pump (7), and a heat dissipation circulation pipe (8) is wound around the surface of the tube body (1); An inner plate (10) is fixedly connected to the inner wall of the cooling box (5), a connecting shaft (11) is rotatably arranged inside the inner plate (10), a movable frame (14) is connected inside the cooling box (5) via a reciprocating mechanism, and blades (13) are fixedly connected to the surface of the connecting shaft (11); A working plate (19) is fixedly connected to the lower surface of the movable frame (14), and a heat conducting plate (21) is fixedly connected to the upper surface of the movable frame (14); An outer frame (25) is fixedly connected to the surface of the cooling box (5), and a clicker (27) is fixedly connected to the inner wall of the outer frame (25).

2. According to claim 1, a double-plate regulating high-temperature butterfly valve for ultra-high-speed wind tunnels is characterized in that: The end of the heat dissipation circulation pipe (8) is connected to the input end of the water pump (7), and the other side of the heat dissipation circulation pipe (8) is arranged inside the cooling box (5), the blades (13) are distributed at equal intervals on the surface of the connecting shaft (11), and a water wheel (12) is fixedly connected to the left side of the connecting shaft (11).

3. The double-plate regulating high-temperature butterfly valve for ultra-high-speed wind tunnel according to claim 1 is characterized by: The reciprocating mechanism comprises a tooth block (16) fixedly connected to the inner wall of the movable frame (14); a working gear (17) meshingly connected to the tooth block (16) is fixedly connected to the surface of the connecting shaft (11); and the working gear (17) is a non-full gear structure.

4. The double-plate regulating high-temperature butterfly valve for ultra-high-speed wind tunnel according to claim 1 is characterized by: An auxiliary plate (18) is fixedly connected to the side of the movable frame (14), a limiting rod (15) is fixedly connected to the inner wall of the inner plate (10), the limiting rod (15) passes through the interior of the auxiliary plate (18), and the limiting rod (15) and the auxiliary plate (18) are slidably connected.

5. The double-plate regulating high-temperature butterfly valve for ultra-high-speed wind tunnel according to claim 1 is characterized in that: The working plates (19) are symmetrically distributed on both sides of the movable frame (14), and through holes (20) are provided on the surface of the working plates (19), and the through holes (20) are evenly spaced on the surface of the working plates (19).

6. The double-plate regulating high-temperature butterfly valve for ultra-high-speed wind tunnel according to claim 1 is characterized by: A box cover (6) is movably provided on the upper surface of the cooling box (5), the heat conducting plate (21) passes through the interior of the box cover (6), and the end of the heat conducting plate (21) is located outside the box cover (6), and water-blocking plates that slide inside the box cover (6) are provided on both sides of the heat conducting plate (21).

7. The double-plate regulating high-temperature butterfly valve for ultra-high-speed wind tunnel according to claim 1 is characterized by: The surface of the heat conducting plate (21) is fixedly connected to a heat sink (22), and the heat sinks (22) are evenly spaced on the surface of the heat conducting plate (21); the cooling box (5) is a bottomless structure, and the surface of the cooling box (5) is fixedly connected to a sealing ring (9), and the sealing ring (9) is also fixedly connected to the surface of the tube body (1).

8. The double-plate regulating high-temperature butterfly valve for ultra-high-speed wind tunnel according to claim 1 is characterized by: A fixing plate (26) is fixedly connected to the surface of the cooling box (5), a force-bearing plate (28) is slidably arranged inside the fixing plate (26), and a second magnet (30) is fixedly connected to the surface of the force-bearing plate (28).

9. The double-plate regulating high-temperature butterfly valve for ultra-high-speed wind tunnel according to claim 8, characterized in that: A circular plate (23) is fixedly connected to the end of the connecting shaft (11), and a first magnet (24) is fixedly connected to the surface of the circular plate (23), and the first magnets (24) are distributed at equal angles on the surface of the circular plate (23).

10. The double-plate regulating high-temperature butterfly valve for ultra-high-speed wind tunnel according to claim 9, characterized in that: The magnetic poles of the first magnet (24) and the second magnet (30) at adjacent positions are the same; a knocking rod (29) is fixedly connected to the surface of the force-bearing plate (28); a connecting spring (31) having an elastic reset function is fixedly connected to the surface of the force-bearing plate (28); the other side of the connecting spring (31) is fixedly connected to the surface of the fixed plate (26); the surface of the knocking rod (29) is convex; and the other end of the knocking rod (29) slides through the fixed plate (26).

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