Self-adaptive thermal cycle gate valve for high-temperature industry

Abstract

The invention relates to the technical field of gate valves, in particular to a high-temperature industrial self-adaptive thermal cycle gate valve which comprises a first valve body and a second valve body, the inner wall of the second valve body is fixedly connected with a valve ring, the side wall of the valve ring is in sealed sliding connection with a valve plate arranged in a penetrating mode, and the side wall of the valve plate is provided with a valve hole matched with the inner side wall of the valve ring; the heat circulation mechanism comprises a U-shaped pipe embedded in the valve plate, a connecting plate is fixedly connected between the side walls, close to each other, of the first valve body and the second valve body in a sealed mode, a first rectangular groove is formed in the connecting plate, and the side walls, close to each other, of the first valve body and the second valve body communicate with the inner wall of the first rectangular groove. The heat circulation mechanism is arranged, high-temperature gas flows from the first valve body to the second valve body, and at the moment, high-temperature flue gas can circularly flow among the one-way gas outlet pipe, the V-shaped pipe, the U-shaped pipe, the first pipe, the gas storage mechanism and the one-way gas inlet pipe, so that the high-temperature flue gas can preheat the valve plate.

Description

Technical Field

[0001] The present invention relates to the technical field of gate valves, and in particular to an adaptive thermal cycle gate valve for high-temperature industries. Background Art

[0002] A gate valve is a valve whose closing member (gate) moves vertically along the centerline of the passage. In a pipeline, a gate valve can only be used for full opening and full closing, and cannot be used for regulation or throttling. It can be used to transport high-temperature flue gas.

[0003] Since the gate of the gate valve moves in a vertical direction, when the high-temperature flue gas is transported in the gate valve and when the gate valve is in an open state, only the lower part of the valve plate is in direct contact with the high-temperature flue gas, and the rest of the valve plate is located outside the valve body. The temperature of the valve plate outside the valve body is lower, and in the process of transporting the high-temperature flue gas, the gate valve will switch from a closed state to an open state. At this time, the valve plate will move from top to bottom into the high-temperature flue gas, causing the part of the valve plate outside the valve body to move into the valve body, causing the part of the valve plate with a lower temperature to move to a high-temperature environment, which can easily cause the part of the valve plate to experience overheating, thereby easily causing the valve plate to crack and the heat-resistant material on its surface to fall off, affecting the service life of the valve plate. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose an adaptive thermal cycle gate valve for high-temperature industry.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: An adaptive thermal cycle gate valve for high-temperature industrial use, comprising: a first valve body and a second valve body, wherein the inner wall of the second valve body is fixedly connected to a valve ring, the side wall of the valve ring is sealingly and slidably connected to a valve plate provided therethrough, and the side wall of the valve plate is provided with a valve hole that cooperates with the inner side wall of the valve ring; A thermal circulation mechanism, the thermal circulation mechanism includes a U-shaped tube embedded in the valve plate, a connecting plate is sealed and fixedly connected between the side walls of the first valve body and the second valve body close to each other, a first rectangular groove is opened in the connecting plate, the side walls of the first valve body and the second valve body close to each other are communicated with the inner wall of the first rectangular groove, a one-way air outlet pipe is fixedly connected to the inner top of the first rectangular groove near the first valve body, an end of the one-way air outlet pipe away from the first valve body is communicated with the upper end of the U-shaped tube through a V-shaped tube, a first tube is fixedly connected to the inner bottom of the U-shaped tube, a one-way air inlet pipe is fixedly connected to the inner bottom of the first rectangular groove near the first valve body, and an air storage mechanism is provided between the first tube and the one-way air inlet pipe; A discharge mechanism for discharging high-temperature gas is provided in the first rectangular groove.

[0006] Preferably, the discharge mechanism includes a vertical plate that is sealingly and slidingly connected to the inner wall of the first rectangular groove. The side wall of the vertical plate away from the first valve body is elastically connected to the inner wall of the first rectangular groove through multiple first springs. A circular hole is provided on the side wall of the vertical plate. A second rectangular groove is provided on the inner wall of the circular hole. Four right-angle plates are sealingly and slidingly connected to the inner wall of the second rectangular groove. The four right-angle plates can seal the circular hole when fitted together.

[0007] Preferably, the inner wall of the second rectangular groove is rotatably connected with four first lead screws corresponding to the four right-angle plates one by one, and the side walls of the first lead screws are threadedly connected with the side walls of the corresponding right-angle plates.

[0008] Preferably, the second rectangular groove is rotatably connected to the inner side wall of the second valve body with four rifle rods corresponding one to one with the four first screws, the side walls of the four rifle rods located in the second rectangular groove are fixedly connected to the first bevel gear, the four side walls of the first screws are fixedly connected to the second bevel gear, the first bevel gear and the corresponding second bevel gear are meshed, and the inner wall of the second rectangular groove is fixedly connected to four threaded cylinders corresponding one to one with the four rifle rods, and the side walls of the rifle rods are threadedly connected to the inner walls of the corresponding threaded cylinders.

[0009] Preferably, the gas storage mechanism includes an gas storage box fixedly connected to the lower end of the connecting plate, the inner wall of the gas storage box is sealed and slidably connected to a first plate, the lower end of the first plate is elastically connected to the bottom of the gas storage box through a plurality of second springs, the upper end of the first plate is fixedly connected to a baffle, the side wall of the baffle passes through the inner wall of the first rectangular groove and fits with the side wall of the vertical plate, the side wall of the baffle is sealed and slidably connected to the inner wall of the first rectangular groove, and an air vent is opened at the bottom of the gas storage box.

[0010] Preferably, the inner wall of the first tube is connected to the inner wall of the air storage box located above the first plate, the inner wall of the one-way air intake pipe is connected to the inner wall of the air storage box located below the first plate, and the aperture of the first tube is larger than the aperture of the one-way air intake pipe.

[0011] Preferably, a temperature control mechanism is provided on the connecting plate, and the temperature control mechanism includes a cooling box fixedly connected to the upper end of the connecting plate, the side wall of the one-way air outlet pipe is sealed and fixed to pass through the inner wall of the cooling box, the inner wall of the cooling box is sealed and slidably connected to a second plate, the side wall of the one-way air outlet pipe is sealed and slidably connected to the side wall of the second plate, the upper end of the connecting plate is fixedly connected to a heat exchange box, the inner wall of the heat exchange box is sealed and slidably connected to a third plate, a coolant is provided in the heat exchange box, the inner wall of one side of the heat exchange box is connected to the inner wall of one side of the cooling box through the second pipe, and the inner wall of the other side of the heat exchange box is connected to the inner wall of the other side of the cooling box through the third pipe.

[0012] Preferably, an electric push rod is sealed and fixedly connected to the side wall of the heat exchange box close to the second tube, and the movable end of the electric push rod is fixedly connected to the side wall of the third plate.

[0013] Preferably, a temperature sensor is embedded in the upper end of the first plate, and the temperature sensor is electrically connected to the electric push rod through an external control mechanism.

[0014] Preferably, the upper end of the second valve body is fixedly connected to a fixed column, the inner wall of the fixed column is provided with a sliding cavity, the upper end of the valve plate passes through the side wall of the fixed column and extends into the sliding cavity, the top of the sliding cavity is rotatably connected to a second screw, the side wall of the second screw is threadedly connected to the upper end of the valve plate, the upper end of the second screw is fixedly connected to a runner, the side wall of the second screw located above the fixed column is threadedly connected to a nut, and the side wall of the V-shaped tube passes through the inner wall of the sliding cavity.

[0015] Compared with the existing technology, the advantages of the present invention are: 1. A heat circulation mechanism is set up, and the high-temperature gas flows from the first valve body to the second valve body. At this time, the high-temperature flue gas will circulate between the one-way outlet pipe, the V-shaped pipe, the U-shaped pipe, the first pipe, the gas storage mechanism and the one-way inlet pipe, so that the high-temperature flue gas can preheat the valve plate to avoid the low temperature of the valve plate outside the valve body. In the process of conveying high-temperature flue gas, the gate valve will switch from a closed state to an open state. At this time, the valve plate will move from top to bottom into the high-temperature flue gas, so that the part of the valve plate outside the valve body moves into the valve body, causing the part of the valve plate with a lower temperature to move to a high-temperature environment, which can easily cause the part of the valve plate to be heated, thereby easily causing the valve plate to crack and the heat-resistant material on its surface to fall off, affecting the service life of the valve plate.

[0016] 2. An air storage mechanism and an air discharge mechanism are provided so that air is continuously stored in the air storage box, causing the first plate to continue to move downward, thereby driving the baffle to move downward and separate from the vertical plate. At this time, the fast-flowing high-temperature flue gas can impact the vertical plate to realize the transportation of high-temperature flue gas. Through this design, it can be ensured that the high-temperature flue gas first effectively preheats the valve plate before transporting the high-temperature flue gas, ensuring that the valve plate will not be subjected to extreme heat.

[0017] 3. A temperature control mechanism is set. When the temperature of the flue gas in the gas storage box is higher than the normal working temperature of the valve plate, the temperature sensor senses its signal, and then controls the electric push rod to extend or contract through the external control mechanism to replace the coolant in the cooling box, thereby quickly cooling the flue gas entering the valve plate, avoiding the temperature of the valve plate from being too high, keeping the valve plate working temperature within the set range, and improving the service life of the valve plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of an adaptive thermal cycle gate valve for high-temperature industry proposed by the present invention; Figure 2 for Figure 1 A vertical cross-sectional structural diagram of ; Figure 3for Figure 2 A schematic diagram of the structure at point A in the middle; Figure 4 for Figure 1 A schematic diagram of the cross-sectional structure of the middle temperature control mechanism; Figure 5 for Figure 2 Structural diagram of the middle valve plate; Figure 6 for Figure 2 Schematic diagram of the structure of the middle vertical plate; Figure 7 for Figure 6 A vertical cross-sectional structural diagram of ; Figure 8 for Figure 1 Schematic diagram of the rear view structure.

[0019] Figure: 1, first valve body; 2, second valve body; 3, valve ring; 4, valve plate; 5, valve hole; 6, fixed column; 7, sliding cavity; 8, U-shaped pipe; 9, connecting plate; 10, one-way air outlet pipe; 11, V-shaped pipe; 12, first pipe; 13, one-way air inlet pipe; 14, first rectangular groove; 15, vertical plate; 16, first spring; 17, circular hole; 18, second rectangular groove; 19, right-angle plate; 20, first screw; 21 , rifle rod; 22, threaded cylinder; 23, first bevel gear; 24, second bevel gear; 25, air storage box; 26, first plate; 27, second spring; 28, baffle; 29, air vent; 30, cooling box; 31, second plate; 32, heat exchange box; 33, second pipe; 34, third pipe; 35, third plate; 36, electric push rod; 37, second screw; 38, rotating wheel; 39, nut; 40, temperature sensor. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0021] Reference Figure 1 - Figure 8 , an adaptive thermal cycle gate valve for high temperature industry, comprising a first valve body 1 and a second valve body 2, wherein the inner wall of the second valve body 2 is fixedly connected to a valve ring 3, the side wall of the valve ring 3 is sealingly and slidably connected to a valve plate 4 provided therethrough, and the side wall of the valve plate 4 is provided with a valve hole 5 (such as Figure 2 shown).

[0022] Thermal cycle mechanism, the thermal cycle mechanism includes a U-shaped tube 8 (such as Figure 5As shown in FIG, a connecting plate 9 is sealed and fixedly connected between the side walls of the first valve body 1 and the second valve body 2 that are close to each other. A first rectangular groove 14 is opened in the connecting plate 9. The side walls of the first valve body 1 and the second valve body 2 that are close to each other are communicated with the inner wall of the first rectangular groove 14. A one-way air outlet pipe 10 is fixedly connected to the first rectangular groove 14 near the inner top of the first valve body 1. The end of the one-way air outlet pipe 10 away from the first valve body 1 is communicated with the upper end of the U-shaped pipe 8 through a V-shaped pipe 11 (as shown in FIG. Figure 4 and Figure 5 As shown), the inner bottom of the U-shaped tube 8 is fixedly connected to the first tube 12, the first rectangular groove 14 is fixedly connected to the one-way air intake pipe 13 near the inner bottom of the first valve body 1, and an air storage mechanism is provided between the first tube 12 and the one-way air intake pipe 13.

[0023] It should be noted that the one-way air outlet pipe 10 only allows high-temperature flue gas to flow out of the first rectangular groove 14 , and the one-way air inlet pipe 13 only allows high-temperature flue gas to enter the first rectangular groove 14 from the outside.

[0024] In the present invention, high-temperature gas flows from the first valve body 1 to the second valve body 2. At this time, the high-temperature flue gas will circulate between the one-way outlet pipe 10, the V-shaped pipe 11, the U-shaped pipe 8, the first pipe 12, the gas storage mechanism and the one-way inlet pipe 13, so that the high-temperature flue gas can preheat the valve plate 4 to avoid the low temperature of the valve plate 4 outside the valve body. During the high-temperature flue gas transportation, the gate valve will switch from a closed state to an open state. At this time, the valve plate 4 will move from top to bottom into the high-temperature flue gas, and the part of the valve plate 4 outside the valve body will move into the valve body, causing the part of the valve plate 4 with a lower temperature to move to a high-temperature environment, which can easily cause the part of the valve plate 4 to experience overheating, thereby easily causing the valve plate 4 to crack and the heat-resistant material on its surface to fall off, affecting the service life of the valve plate 4.

[0025] The first rectangular groove 14 is provided with a discharge mechanism for discharging high temperature gas. The discharge mechanism includes a vertical plate 15 which is sealingly and slidingly connected to the inner wall of the first rectangular groove 14. The vertical plate 15 is elastically connected to the inner wall of the first rectangular groove 14 by a plurality of first springs 16 away from the side wall of the first valve body 1 (as shown in FIG. Figure 2 As shown), a circular hole 17 is opened on the side wall of the vertical plate 15, and a second rectangular groove 18 is opened on the inner wall of the circular hole 17. Four right-angle plates 19 are sealed and slidably connected to the inner wall of the second rectangular groove 18. When the four right-angle plates 19 are fitted together, the circular hole 17 can be blocked (as shown in FIG. Figure 6 shown).

[0026] Four first lead screws 20 corresponding to the four right-angle plates 19 are rotatably connected to the inner wall of the second rectangular groove 18 , and the side walls of the first lead screws 20 are threadedly connected to the side walls of the corresponding right-angle plates 19 .

[0027] The second rectangular groove 18 is rotatably connected to the inner wall of the second valve body 2 with four rifle rods 21 corresponding to the four first screws 20. The side walls of the four rifle rods 21 located in the second rectangular groove 18 are fixedly connected to the first bevel gear 23. The side walls of the four first screws 20 are fixedly connected to the second bevel gear 24. The first bevel gear 23 is meshed with the corresponding second bevel gear 24. The inner wall of the second rectangular groove 18 is fixedly connected to four threaded cylinders 22 corresponding to the four rifle rods 21. The side walls of the rifle rods 21 are threadedly connected to the inner walls of the corresponding threaded cylinders 22 (such as Figure 3 shown).

[0028] In the initial state, that is, when no high-temperature flue gas is transported, the vertical plate 15 is in its original position under the elastic force of the first springs 16, and the four right-angle plates 19 are in contact with each other (such as Figure 6 As shown), when fast-flowing high-temperature flue gas is transported in the first valve body 1, the high-temperature flue gas will squeeze the vertical plate 15 and the four right-angle plates 19, causing the vertical plate 15 to move toward the second valve body 2. When the vertical plate 15 slides and the four rifle rods 21 are respectively threadedly connected to the four threaded cylinders 22, the four rifle rods 21 rotate forward. At this time, each rifle rod 21 drives the first lead screw 20 to rotate forward through the first bevel gear 23 and the second bevel gear 24, causing the right-angle plate 19 to slide into the second rectangular groove 18, opening the circular hole 17, and realizing normal transportation of the high-temperature flue gas.

[0029] It should be noted that after the circular hole 17 is opened, the impact force of the fast-flowing high-temperature flue gas on the vertical plate 15 is much greater than the elastic force of the multiple first springs 16, so that the position of the vertical plate 15 remains unchanged, thereby ensuring that the circular hole 17 is continuously opened.

[0030] The gas storage mechanism includes an air storage box 25 fixedly connected to the lower end of the connecting plate 9. The inner wall of the air storage box 25 is sealed and slidably connected to a first plate 26. The lower end of the first plate 26 is elastically connected to the bottom of the air storage box 25 through multiple second springs 27. The upper end of the first plate 26 is fixedly connected to a baffle 28. The side wall of the baffle 28 passes through the inner wall of the first rectangular groove 14 and fits into the side wall of the vertical plate 15. The side wall of the baffle 28 is sealed and slidably connected to the inner wall of the first rectangular groove 14. An air vent 29 is opened at the bottom of the air storage box 25.

[0031] The inner wall of the first tube 12 is connected to the inner wall of the air storage box 25 located above the first plate 26, and the inner wall of the one-way air intake pipe 13 is connected to the inner wall of the air storage box 25 located below the first plate 26. The aperture of the first tube 12 is larger than the aperture of the one-way air intake pipe 13.

[0032] After the high-temperature flue gas flows out of the U-shaped tube 8, it enters the air storage box 25 through the first tube 12, thereby driving the first plate 26 to move downward, and driving the baffle 28 to move downward. When the first plate 26 moves downward to expose the pipe mouth of the one-way air intake pipe 13, the high-temperature flue gas will enter the first rectangular groove 14 through the one-way air intake pipe 13. However, since the aperture of the first tube 12 is larger than the aperture of the one-way air intake pipe 13, air will continue to accumulate in the air storage box 25, causing the first plate 26 to continue to move downward, thereby driving the baffle 28 to move downward and separate from the vertical plate 15. At this time, the fast-flowing high-temperature flue gas can impact the vertical plate 15, thereby realizing the transportation of high-temperature flue gas. Through this design, it can be ensured that the high-temperature flue gas first effectively preheats the valve plate 4 before transporting the high-temperature flue gas, ensuring that the valve plate 4 will not be subjected to extreme heat.

[0033] A temperature control mechanism is provided on the connecting plate 9, which includes a cooling box 30 fixedly connected to the upper end of the connecting plate 9, a side wall of the one-way air outlet pipe 10 is sealed and fixed through the inner wall of the cooling box 30, and a second plate 31 is sealed and slidably connected to the inner wall of the cooling box 30. The side wall of the one-way air outlet pipe 10 is sealed and slidably connected to the side wall of the second plate 31, a heat exchange box 32 is fixedly connected to the upper end of the connecting plate 9, and a third plate 35 is sealed and slidably connected to the inner wall of the heat exchange box 32. Coolant is provided in the heat exchange box 32, and the inner wall on one side of the heat exchange box 32 is connected to the inner wall on one side of the cooling box 30 through the second tube 33, and the inner wall on the other side of the heat exchange box 32 is connected to the inner wall on the other side of the cooling box 30 through the third tube 34.

[0034] After passing through the cooling box 30 , the high-temperature flue gas enters the C-shaped tube 8 through the V-shaped tube 11 . At this time, the coolant in the cooling box 30 can cool the high-temperature flue gas, thereby preventing the high-temperature flue gas entering the C-shaped tube 8 from being too high in temperature and causing a heat shock phenomenon on the valve plate 4 .

[0035] An electric push rod 36 is sealed and fixedly connected to the side wall of the heat exchange box 32 close to the second tube 33 , and a movable end of the electric push rod 36 is fixedly connected to the side wall of the third plate 35 .

[0036] A temperature sensor 40 is embedded in the upper end of the first plate 26 . The temperature sensor 40 is electrically connected to the electric push rod 36 through an external control mechanism.

[0037] When the electric push rod 36 extends or contracts, it can drive the third plate 35 to move in the heat exchange box 32. At this time, the heat exchange box 32 can make the coolant flow in the cooling box 30 through the second tube 33 and the third tube 34, that is, the coolant flows in the space on both sides of the second plate 31 of the cooling box 30, and the coolant in the cooling box 30 can be replaced.

[0038] The temperature sensor 40 can sense the temperature of the flue gas flowing through the valve plate 4. When the temperature of the flue gas in the gas storage box 25 is at the normal operating temperature of the valve plate 4, the temperature sensor 40 does not sense its signal. When the temperature of the flue gas in the gas storage box 25 is higher than the normal operating temperature of the valve plate 4, the temperature sensor 40 senses its signal, and then controls the electric push rod 36 to extend or contract (its extension or contraction depends on its state before control) through the external control mechanism, thereby realizing the replacement of the coolant in the cooling box 30, and then quickly cooling the flue gas entering the valve plate 4, avoiding the temperature of the valve plate 4 from being too high, so that the working temperature of the valve plate 4 is maintained within the set range, and improving the service life of the valve plate 4.

[0039] The upper end of the second valve body 2 is fixedly connected to a fixed column 6, and a sliding cavity 7 is opened on the inner wall of the fixed column 6. The upper end of the valve plate 4 passes through the side wall of the fixed column 6 and extends into the sliding cavity 7. The top of the sliding cavity 7 is rotatably connected to a second lead screw 37, and the side wall of the second lead screw 37 is threadedly connected to the upper end of the valve plate 4. The upper end of the second lead screw 37 is fixedly connected to a runner 38. The side wall of the second lead screw 37 located above the fixed column 6 is threadedly connected to a nut 39, and the side wall of the V-shaped tube 11 passes through the inner wall of the sliding cavity 7.

[0040] When the gate valve is used to convey high-temperature flue gas, the nut 39 is first rotated forward to separate it from the upper end of the fixed column 6. Then, the rotating wheel 38 is rotated forward to rotate the second screw 37 forward, driving the valve plate 4 downward to make the valve hole 5 fit with the inner wall of the valve ring 3. Then, the nut 39 is rotated backward to tightly fit the upper end of the fixed column 6 to limit the rotation position of the second screw 37. Then the high-temperature flue gas will enter the first valve body 1, and then the high-temperature flue gas will circulate between the first rectangular groove 14, the one-way air outlet pipe 10, the V-shaped pipe 11, the U-shaped pipe 8, the first pipe 12, the air storage box 25 and the one-way air inlet pipe 13, so that the high-temperature flue gas can preheat the valve plate 4 to avoid the low temperature of the valve plate 4 outside the valve body, so that during the high-temperature flue gas transportation, the gate valve will switch from a closed state to an open state. At this time, the valve plate 4 will move from top to bottom into the high-temperature flue gas, and the part of the valve plate 4 outside the valve body will move into the valve body, causing the part of the valve plate 4 with a lower temperature to move to a high-temperature environment, which may easily cause the part of the valve plate 4 to be heated, thereby easily causing the valve plate 4 to crack and the heat-resistant material on its surface to fall off, affecting the service life of the valve plate 4; After flowing out of the U-shaped tube 8, the high-temperature flue gas enters the gas storage box 25 through the first tube 12, driving the first plate 26 downward, and driving the baffle 28 downward. When the first plate 26 moves downward, exposing the opening of the one-way air inlet pipe 13, the high-temperature flue gas enters the first rectangular groove 14 through the one-way air inlet pipe 13. However, since the aperture of the first tube 12 is larger than that of the one-way air inlet pipe 13, gas continues to accumulate in the gas storage box 25, causing the first plate 26 to continue to move downward, thereby driving the baffle 28 downward and separating from the vertical plate 15. Subsequently, the fast-flowing high-temperature flue gas squeezes the vertical plate 15 and the four right-angle plates 19, causing the vertical plate 15 to move toward the second valve body 2. When the vertical plate 15 slides and the four rifle rods 21 are respectively threadedly connected to the four threaded cylinders 22, the four rifle rods 21 rotate forward. At this time, each rifle rod 21 drives the first lead screw 20 to rotate forward through the first bevel gear 23 and the second bevel gear 24, causing the right-angle plate 19 to slide into the second rectangular groove 18, opening the circular hole 17, and then the high-temperature flue gas flows out through the second valve body 2; During the high-temperature flue gas circulation process, the high-temperature flue gas passes through the cooling box 30 and then enters the U-shaped tube 8 through the V-shaped tube 11. At this time, the coolant in the cooling box 30 can cool the high-temperature flue gas, thereby preventing the high-temperature flue gas entering the U-shaped tube 8 from being too high in temperature and causing thermal shock on the valve plate 4. At the same time, the temperature sensor 40 can sense the temperature of the flue gas flowing through the valve plate 4. When the temperature of the flue gas in the gas storage box 25 is at the normal working temperature of the valve plate 4, the temperature sensor 40 does not sense its signal. When the temperature of the flue gas in the gas storage box 25 is higher than the normal working temperature of the valve plate 4, the temperature sensor 40 senses its signal, and then controls the electric push rod 36 to extend or contract (its extension or contraction depends on its state before control) through the external control mechanism, thereby realizing the replacement of the coolant in the cooling box 30, and then quickly cooling the flue gas entering the valve plate 4, avoiding the temperature of the valve plate 4 from being too high, so that the working temperature of the valve plate 4 is maintained within the set range, and improving the service life of the valve plate 4.

[0041] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An adaptive thermal cycle gate valve for high temperature industry, characterized in that: include: A first valve body (1) and a second valve body (2), wherein the inner wall of the second valve body (2) is fixedly connected to a valve ring (3), the side wall of the valve ring (3) is sealingly and slidably connected to a valve plate (4) provided therethrough, and the side wall of the valve plate (4) is provided with a valve hole (5) that cooperates with the inner side wall of the valve ring (3); A heat circulation mechanism, the heat circulation mechanism includes a V-shaped tube (8) embedded in the valve plate (4), a connecting plate (9) is sealed and fixedly connected between the side walls of the first valve body (1) and the second valve body (2) close to each other, a first rectangular groove (14) is opened in the connecting plate (9), the side walls of the first valve body (1) and the second valve body (2) close to each other are both connected to the inner wall of the first rectangular groove (14), the first rectangular groove (14) is fixedly connected to a one-way air outlet pipe (10) near the inner top of the first valve body (1), the end of the one-way air outlet pipe (10) away from the first valve body (1) is connected to the upper end of the V-shaped tube (8) through a V-shaped tube (11), the inner bottom of the V-shaped tube (8) is fixedly connected to a first tube (12), the first rectangular groove (14) is fixedly connected to a one-way air inlet pipe (13) near the inner bottom of the first valve body (1), and an air storage mechanism is provided between the first tube (12) and the one-way air inlet pipe (13); A discharge mechanism for discharging high-temperature gas is provided in the first rectangular groove (14).

2. The adaptive thermal cycle gate valve for high temperature industry according to claim 1, characterized in that: The discharge mechanism includes a vertical plate (15) that is sealingly and slidably connected to the inner wall of the first rectangular groove (14); the side wall of the vertical plate (15) away from the first valve body (1) is elastically connected to the inner wall of the first rectangular groove (14) through a plurality of first springs (16); a circular hole (17) is opened on the side wall of the vertical plate (15); a second rectangular groove (18) is opened on the inner wall of the circular hole (17); four right-angle plates (19) are sealingly and slidably connected to the inner wall of the second rectangular groove (18); the four right-angle plates (19) can seal the circular hole (17) when they are fitted together.

3. The adaptive thermal cycle gate valve for high temperature industry according to claim 2, characterized in that: The inner wall of the second rectangular groove (18) is rotatably connected to four first lead screws (20) corresponding to the four right-angle plates (19), and the side walls of the first lead screws (20) are threadedly connected to the side walls of the corresponding right-angle plates (19).

4. The adaptive thermal cycle gate valve for high temperature industry according to claim 3, characterized in that: The second rectangular groove (18) is rotatably connected to the inner wall of the second valve body (2) with four rifle rods (21) corresponding to the four first screw rods (20). The side walls of the four rifle rods (21) located in the second rectangular groove (18) are fixedly connected to the first bevel gear (23). The side walls of the four first screw rods (20) are fixedly connected to the second bevel gear (24). The first bevel gear (23) is meshed with the corresponding second bevel gear (24). The inner wall of the second rectangular groove (18) is fixedly connected to four threaded cylinders (22) corresponding to the four rifle rods (21). The side walls of the rifle rods (21) are threadedly connected to the inner walls of the corresponding threaded cylinders (22).

5. The adaptive thermal cycle gate valve for high temperature industry according to claim 1, characterized in that: The gas storage mechanism comprises a gas storage box (25) fixedly connected to the lower end of the connecting plate (9); the inner wall of the gas storage box (25) is sealed and slidably connected to a first plate (26); the lower end of the first plate (26) is elastically connected to the inner bottom of the gas storage box (25) through a plurality of second springs (27); the upper end of the first plate (26) is fixedly connected to a baffle (28); the side wall of the baffle (28) passes through the inner wall of the first rectangular groove (14) and fits with the side wall of the vertical plate (15); the side wall of the baffle (28) is sealed and slidably connected to the inner wall of the first rectangular groove (14); and an air vent (29) is opened at the inner bottom of the gas storage box (25).

6. The adaptive thermal cycle gate valve for high temperature industry according to claim 5, characterized in that: The inner wall of the first tube (12) is in communication with the inner wall of the gas storage box (25) located above the first plate (26), and the inner wall of the one-way air inlet pipe (13) is in communication with the inner wall of the gas storage box (25) located below the first plate (26). The aperture of the first tube (12) is larger than the aperture of the one-way air inlet pipe (13).

7. The adaptive thermal cycle gate valve for high temperature industry according to claim 5, characterized in that: The connecting plate (9) is provided with a temperature control mechanism, and the temperature control mechanism includes a cooling box (30) fixedly connected to the upper end of the connecting plate (9), the side wall of the one-way air outlet pipe (10) is sealed and fixed to penetrate the inner wall of the cooling box (30), the inner wall of the cooling box (30) is sealed and slidably connected to the second plate (31), the side wall of the one-way air outlet pipe (10) is sealed and slidably connected to the side wall of the second plate (31), the upper end of the connecting plate (9) is fixedly connected to a heat exchange box (32), the inner wall of the heat exchange box (32) is sealed and slidably connected to the third plate (35), a cooling liquid is provided in the heat exchange box (32), the inner wall of one side of the heat exchange box (32) is communicated with the inner wall of one side of the cooling box (30) through the second pipe (33), and the inner wall of the other side of the heat exchange box (32) is communicated with the inner wall of the other side of the cooling box (30) through the third pipe (34).

8. The adaptive thermal cycle gate valve for high temperature industry according to claim 7, characterized in that: The side wall of the heat exchange box (32) close to the second tube (33) is sealed and fixedly connected to an electric push rod (36), and the movable end of the electric push rod (36) is fixedly connected to the side wall of the third plate (35).

9. The adaptive thermal cycle gate valve for high temperature industry according to claim 8, characterized in that: A temperature sensor (40) is embedded in the upper end of the first plate (26), and the temperature sensor (40) is electrically connected to the electric push rod (36) through an external control mechanism.

10. The adaptive thermal cycle gate valve for high temperature industry according to claim 1, characterized in that: The upper end of the second valve body (2) is fixedly connected to a fixed column (6), and a sliding cavity (7) is provided on the inner wall of the fixed column (6). The upper end of the valve plate (4) passes through the side wall of the fixed column (6) and extends into the sliding cavity (7). A second screw (37) is rotatably connected to the top of the sliding cavity (7). The side wall of the second screw (37) is threadedly connected to the upper end of the valve plate (4). The upper end of the second screw (37) is fixedly connected to a rotating wheel (38). The side wall of the second screw (37) located above the fixed column (6) is threadedly connected to a nut (39), and the side wall of the V-shaped tube (11) passes through the inner wall of the sliding cavity (7).

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