Low-load rto switching zero-leakage air seal air valve and using method thereof

Abstract

The invention relates to the technical field of air seal air valves, and discloses a low-load rto switching zero-leakage air seal air valve and a using method thereof.The low-load rto switching zero-leakage air seal air valve comprises a shell and a valve body, and the shell is arranged at the top of the valve body; a filtering mechanism; the filtering mechanism is arranged on one side of the shell and filters water vapor in high-pressure gas input into the shell through a plurality of condensation barrels and condensation plates in the filtering mechanism. By arranging the filtering mechanism, compressed gas enters the condensation barrel through the gas conveying pipe, water vapor in the compressed gas is intercepted through the condensation plate, the intercepted water vapor is condensed into water drops on the condensation plate, and the water drops are pushed by the compressed gas to obliquely flow downwards along the condensation plate and flow to the water leakage opening to enter the collection frame; and the sealing cylinder rotates on the outer wall of the condensation cylinder in a reciprocating mode, when a water outlet in the sealing cylinder is aligned with a water outlet in the condensation cylinder, water in the collecting frame is discharged into the heat exchange frame, and filtered water vapor is conveniently discharged.

Description

Technical Field

[0001] The present invention relates to the technical field of air-sealing air valves, and particularly to a low-load rto switching zero-leakage air-sealing air valve and its usage method. Background Technique

[0002] A regenerative thermal oxidizer (rto) is an industrial waste gas treatment device for efficiently treating volatile organic compounds and harmful air pollutants. Its core principle is to decompose pollutants in the waste gas through high-temperature oxidation, and at the same time use regenerative materials to recover heat, significantly reducing energy consumption. When using a regenerative thermal oxidizer, an air-sealing air valve needs to be set at its air inlet to control the air entering the regenerative thermal oxidizer. Among them, a pneumatic butterfly valve can be selected for the air-sealing air valve. The air-sealing air valve controls the opening and closing of the valve through a pneumatic actuator, thereby controlling the air flow and the sealing of the combustion chamber of the regenerative thermal oxidizer; In a pneumatic air valve and device with a Chinese patent application number of 202510362776.6, this invention solves the problems in the prior art that the automatic air valve in the exhaust duct of the LDS device has a complex structure, high cost, and is prone to jamming and poor sealing. The method includes a housing, a valve plate rotatably installed inside the housing, a flexible sealing ring embedded in the outer wall of the valve plate, a sealing component for enhancing sealing, and a driving mechanism for driving the valve plate to rotate smoothly. This pneumatic air valve is based on a crank-slider mechanism and realizes the driving of the valve plate opening and closing through a simple structure of a cylinder and a connecting rod. The structure is simple and the production cost is low. Moreover, when the valve plate is in a closed or open state, the included angle between the second connecting rod and the third connecting rod and the included angle between the third connecting rod and the piston rod of the cylinder will not be 0° or 180°, so there will be no jamming phenomenon; when the valve plate is closed, it can closely fit with the first sealing plate and the second sealing plate on both sides to ensure the sealing performance after the valve plate is closed.

[0003] In the current use of air-sealing air valves, the compressed gas transported into the pneumatic actuator contains water vapor. Excessive water vapor entering the interior of the pneumatic actuator will cause damage to internal components such as pistons. For example, when water vapor mixes with lubricating oil to form an emulsion, the lubricating performance is reduced, resulting in an increase in the friction force of moving components such as piston rods, causing valve opening and closing errors or action delays, and affecting the use of the air valve. Summary of the Invention

[0004] The purpose of the present invention is to provide a low-load rto switching zero-leakage air-sealing air valve and its usage method to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A low-load rto switching zero-leakage air-sealing air valve and its usage method, including a housing and a valve body, the housing is arranged on top of the valve body; Filter mechanism; the filter mechanism is arranged on one side of the housing, and the filter mechanism filters the water vapor in the high-pressure gas input into the housing through a plurality of condensation cylinders and condensation plates therein; Moving mechanism, the moving mechanism is arranged between the housing and the valve body, and the moving mechanism drives the movement between the housing and the valve body through the third cylinder, support frame and support plate therein; Sealing mechanism, the sealing mechanism is arranged on one side of the valve body, and the sealing mechanism assists in sealing the air valve through the sealing ring and the spray head therein.

[0006] Optionally, the filter mechanism includes a heat exchange frame, a plurality of condensation cylinders, a guiding ring, a plurality of condensation plates, a connecting disc, a collection frame, a sealing cylinder, a plurality of water outlets, a sealing cylinder and a plurality of mounting blocks; the heat exchange frame is fixedly installed on one side of the housing, a plurality of the condensation cylinders are fixedly installed on the inner wall of the housing, a plurality of the guiding rings are fixedly installed on the inner wall of the condensation cylinder, a plurality of the condensation plates are fixedly installed at the inner ring of the guiding ring, the condensation plate is arc-shaped, the connecting disc is fixedly installed at one end of the condensation plate, the collection frame is fixedly installed at the bottom corresponding to the guiding ring, a water leakage port is opened at the connection between the condensation plate and the guiding ring, and the water leakage port penetrates to the bottom of the guiding ring, the sealing cylinder is rotatably installed on the outer wall of the corresponding condensation cylinder, a plurality of the water outlets are opened on the outer walls of the sealing cylinder, condensation cylinder and collection frame, and the positions of the water outlets on the outer walls of the sealing cylinder, condensation cylinder and collection frame correspond to each other, and a plurality of the mounting blocks are fixedly installed on the top of the condensation cylinder.

[0007] Optionally, the top of the condensation cylinder extends to the outside of the top of the housing, an air delivery pipe is fixedly installed at the top of the condensation cylinder, and a plurality of sealing gaskets are fixedly installed on the inner wall of the sealing cylinder, and one side of the sealing gasket is located on the outer wall of the condensation cylinder.

[0008] Optionally, a plurality of sliding openings are opened at the top of the housing, the sliding openings are arc-shaped, the mounting blocks on the corresponding sealing cylinder are slidably installed on the inner wall of the corresponding sliding opening, a moving frame is fixedly installed at the top of one of the mounting blocks on the sealing cylinder, a limiting rod is fixedly installed on the inner wall of the moving frame, a moving block is slidably installed on the outer wall of the limiting rod, a first cylinder is fixedly installed on one side of the moving frame, the output end of the first cylinder extends into the moving frame, the moving block is fixedly installed at the output end of the first cylinder, a second cylinder is fixedly installed at the top of the housing, the position of the second cylinder corresponds to the moving frame, and a first connecting plate is fixedly installed at the output end of the second cylinder, and the first connecting plate is rotatably installed on one side of the corresponding moving block.

[0009] Optionally, two pistons are fixedly installed on the inner wall of the housing. One end of each piston is fixedly installed with a moving plate, and one side of the moving plate is fixedly installed with a rack. The two pistons are symmetrically installed inside the housing. A first shaft body is rotatably installed on the inner wall of the housing, and both ends of the first shaft body extend to the outside of the top and bottom of the housing respectively. A mechanical seal is provided at the connection between the first shaft body and the housing. A spur gear ring is fixedly installed on the outer wall of the first shaft body, and the outer wall of the spur gear ring meshes with the racks on one side of the moving plates on both sides respectively. Sealing covers are fixedly installed on both sides of the housing through bolts. A plurality of first limit posts are fixedly installed on one side of each sealing cover. The other end of each piston is fixedly installed with a plurality of the moving cylinders, and the moving cylinders are slidably installed on the outer walls of the corresponding first limit posts.

[0010] Optionally, a plurality of mounting holes are provided on one side of the housing connected to the heat exchange frame. A connecting pipe is fixedly installed on one side of the heat exchange frame, and one end of the connecting pipe extends into the heat exchange frame. The end of the connecting pipe extending into the heat exchange frame is fixedly installed at the bottom end of the corresponding condensation cylinder. The connecting pipe is installed inside the corresponding mounting hole. A sealing plate is fixedly installed at the other end of the connecting pipe. Four fixing holes are provided at the bottom end of the housing, and an air outlet cylinder is installed on the inner wall of the fixing hole. A fixing plate is fixedly installed at the bottom end of the air outlet cylinder, and the fixing plate is fixedly installed at the bottom end of the housing through bolts. The two air outlet cylinders are located between the two pistons, and the other two air outlet cylinders are located between the sealing cover at one end of the corresponding housing and the piston. Connecting holes are provided on the outer wall of the air outlet cylinder, and the other end of the connecting pipe is installed on the inner wall of the corresponding connecting hole.

[0011] Optionally, the moving mechanism includes a mounting frame, a second shaft body, a mounting cylinder, a plurality of third cylinders, a plurality of support frames, a plurality of support plates, second limit posts, a rotating frame, a plurality of fixing frames, and a fourth cylinder. The mounting frame is fixedly installed on both sides of the top of the valve body. A plurality of the third cylinders are fixedly installed on the inner wall of the mounting frame, and the output ends of the third cylinders extend to the outside of the top of the mounting frame. The support frame is fixedly installed at the output end of the third cylinder. A plurality of the support plates are fixedly installed at the bottom end of the housing, and the support plates are fixedly installed at the top of the support frame through screws. A plurality of second limit posts are fixedly installed at the bottom end of the support frame. A limit hole is provided at the top of the mounting frame, and the second limit posts are slidably installed on the inner wall of the corresponding limit hole. The second shaft body is rotatably installed at the top of the valve body, and the bottom end of the second shaft body extends into the valve body. The rotating frame is fixedly installed on both sides of the outer wall of the top end of the second shaft body. The mounting cylinder is fixedly installed at one end of the valve body through bolts. A plurality of the fixing frames are fixedly installed on the top of the mounting cylinder. The fourth cylinder is fixedly installed on the fixing frame, and a second connecting piece is fixedly installed at the output end of the fourth cylinder. The second connecting piece is rotatably installed on the rotating frame.

[0012] Optionally, a valve plate is fixedly installed on the outer wall of the second shaft body located inside the valve body. A clamping member is fixedly installed at the top end of the second shaft body. A clamping groove is formed at the bottom end of the first shaft body. A clamping cylinder is fixedly installed on the inner wall of the clamping groove. The clamping member is clamped with the inner wall of the clamping cylinder.

[0013] Optionally, the sealing mechanism includes a plurality of protective frames, a fifth cylinder, a moving ring, a sealing ring, a plurality of delivery pipes, a plurality of spray heads, and a sealing member. The plurality of protective frames are fixedly installed on the inner wall of the installation cylinder. The fifth cylinder is fixedly installed on the inner wall of the protective frame. The moving ring is fixedly installed at the output end of the fifth cylinder. The sealing ring is fixedly installed at one end of the moving ring. The sealing member is fixedly installed at one end of the valve plate. The sealing ring is clamped with the sealing member. The plurality of spray heads are fixedly installed at one end of the sealing ring. The spray heads are located between the sealing ring and the valve plate. The plurality of delivery pipes are fixedly installed on the inner wall of the installation cylinder. One end of the delivery pipe extends to the outside of the installation cylinder. The other end of the delivery pipe is connected to the corresponding spray head.

[0014] A method for using a low-load rto switching zero-leakage air-sealing air valve includes the following steps: S1. The air outlet cylinder located between the pistons is used for introducing air to push the pistons to move towards both ends of the housing. The pistons drive the first shaft body to rotate through the engagement of the moving plates at their one ends with the spur gear ring, thereby driving the valve plate to rotate and open. S2. The air outlet cylinders located at both ends inside the housing are used for introducing air to push the pistons to move towards the middle position of the housing, thereby driving the valve plate to close. S3. When the first shaft body rotates, the fourth cylinder can assist in pulling or pushing the second shaft body to rotate, and assist in the rotation of the first shaft body and the second shaft body. S4. When compressed gas is input, the water vapor in the compressed gas is filtered through the condensation cylinder and the condensation plate.

[0015] The present invention at least has the following beneficial effects: (1) In this solution, by setting up a filtering mechanism, the compressed gas enters the condensation cylinder through the gas delivery pipe. The water vapor in the compressed gas is intercepted by the condensation plate. The intercepted water vapor condenses into water droplets on the condensation plate. The water droplets flow downward along the inclined condensation plate under the push of the compressed gas and flow to the water leakage port and enter the collection frame, which is convenient for filtering the water vapor in the compressed gas. And the sealing cylinder rotates reciprocally on the outer wall of the condensation cylinder. When the water outlet on the sealing cylinder is aligned with the water outlet on the condensation cylinder, the water in the collection frame is discharged into the heat exchange frame, which is convenient for discharging the filtered water vapor. (2) One end of the conveying pipe in this solution is connected to an air tank through a solenoid valve and a pump body. When the valve plate is closed, the fourth cylinder starts to drive the moving ring to move, so that the sealing ring on the moving ring is engaged with the seal on the valve plate, and an inert gas such as nitrogen is filled between the sealing ring and the valve plate through the nozzle. Through the gas barrier, the differential pressure leakage is offset, and the sealing effect of the air valve is increased. (3) The air outlet cylinder in this solution is installed on the outer shell by plugging, and is connected to the connecting pipe by plugging, which is convenient for the installation and disassembly of the air outlet cylinder, and convenient for disassembling the air outlet cylinder to clean the impurities in the air outlet cylinder. (4) By setting the fourth cylinder in this solution, it can assist in pulling or pushing the second shaft to rotate, reducing the pressure borne by the first shaft during rotation. And when the piston in the outer shell gets stuck, the third cylinder starts to push the support plate upward, so that the second shaft is disengaged from the connection with the first shaft, and the second shaft is driven to rotate by the third cylinder to control the opening and closing of the valve plate, which can facilitate the emergency opening and closing of the valve plate when the piston inside the outer shell gets stuck. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Figure 1 It is a schematic structural diagram of the present invention; Figure 2 It is a cross-sectional view of the outer shell of the present invention; Figure 3 It is a cross-sectional view of the condensing cylinder of the present invention; Figure 4 It is an installation diagram of the air outlet cylinder of the present invention; Figure 5 It is an installation diagram of the sealing cylinder of the present invention; Figure 6 It is an installation diagram of the moving mechanism of the present invention; Figure 7 It is a connection diagram of the first shaft and the second shaft of the present invention; Figure 8 It is a cross-sectional view of the installation cylinder of the present invention.

[0017] In the drawings, the list of components represented by each reference numeral is as follows: 1. Housing; 101. Sealing cover; 102. First limiting post; 103. Moving cylinder; 104. Piston; 1041. Moving plate; 105. First shaft body; 106. Straight gear ring; 107. Engaging cylinder; 2. Heat exchange frame; 201. Condensing cylinder; 202. Guide ring; 203. Condensing plate; 204. Connecting plate; 205. Collection frame; 206. Water outlet; 207. Sealing cylinder; 208. Mounting block; 209. Sliding opening; 210. Moving frame; 211. Limiting rod; 212. Moving block; 213. First cylinder; 214. Second cylinder; 215. Air delivery pipe; 3. Connecting pipe; 301. Sealing plate; 302. Air outlet cylinder; 303. Fixed plate; 4. Valve body; 401. Second shaft body; 402. Engaging part; 403. Valve plate; 404. Mounting frame; 405. Third cylinder; 406. Support frame; 407. Support plate; 408. Second limiting post; 409. Rotating frame; 410. Fixed frame; 411. Fourth cylinder; 5. Mounting cylinder; 501. Protection frame; 502. Fifth cylinder; 503. Moving ring; 504. Sealing ring; 505. Delivery pipe; 506. Sprayer; 507. Sealing element. Detailed implementation manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 - 8, the present invention provides a low-load RTO switching zero-leakage air-sealing air valve and its usage method, including a housing 1 and a valve body 4, with the housing 1 disposed on top of the valve body 4; a filtering mechanism; the filtering mechanism is arranged on one side of the housing 1, and the filtering mechanism filters the water vapor in the high-pressure gas input into the housing 1 through a number of condensation cylinders 201 and condensation plates 203 therein; a moving mechanism, the moving mechanism is arranged between the housing 1 and the valve body 4, and the moving mechanism drives the movement between the housing 1 and the valve body 4 through the third cylinder 405, the support frame 406 and the support plate 407 therein; a sealing mechanism, the sealing mechanism is arranged on one side of the valve body 4, and the sealing mechanism assists in sealing the air valve through the sealing ring 504 and the nozzle 506 therein; by setting the filtering mechanism, the compressed gas enters the condensation cylinder 201 through the gas pipeline 215, the condensation plate 203 intercepts the water vapor in the compressed gas, the intercepted water vapor condenses into water droplets on the condensation plate 203, and the water droplets flow downward along the inclined condensation plate 203 under the push of the compressed gas and flow to the water leakage port and enter the collection frame 205, which is convenient for filtering the water vapor in the compressed gas, and the sealing cylinder 207 reciprocally rotates on the outer wall of the condensation cylinder 201. When the water outlet 206 on the sealing cylinder 207 is aligned with the water outlet 206 on the condensation cylinder 201, the water in the collection frame 205 is discharged into the heat exchange frame 2, which is convenient for discharging the filtered water vapor.

[0020] In this embodiment, a heat exchanger in the prior art is arranged inside the heat exchange frame 2, and the heat exchange tubes on the heat exchanger are fixed on the inner wall of the heat exchange frame 2 to cool the inside of the heat exchange frame 2.

[0021] In some embodiments, refer to Figure 3, the filtering mechanism includes a heat exchange frame 2, a plurality of condensation cylinders 201, a guiding ring 202, a plurality of condensation plates 203, a connecting disk 204, a collection frame 205, a sealing cylinder 207, a plurality of water outlets 206, the sealing cylinder 207 and a plurality of mounting blocks 208; the heat exchange frame 2 is fixedly installed on one side of the housing 1, a plurality of condensation cylinders 201 are fixedly installed on the inner wall of the housing 1, a plurality of guiding rings 202 are fixedly installed on the inner wall of the condensation cylinders 201, a plurality of condensation plates 203 are fixedly installed at the inner ring of the guiding rings 202, the condensation plates 203 are arc-shaped, the connecting disk 204 is fixedly installed at one end of the condensation plates 203, the collection frame 205 is fixedly installed at the bottom of the corresponding guiding ring 202, a water leakage port is opened at the connection between the condensation plate 203 and the guiding ring 202, and the water leakage port penetrates to the bottom of the guiding ring 202, the sealing cylinder 207 is rotatably installed on the outer wall of the corresponding condensation cylinder 201, a plurality of water outlets 206 are opened on the outer walls of the sealing cylinder 207, the condensation cylinder 201 and the collection frame 205, and the positions of the water outlets 206 on the outer walls of the sealing cylinder 207, the condensation cylinder 201 and the collection frame 205 correspond to each other, a plurality of mounting blocks 208 are fixedly installed at the top of the condensation cylinder 201, the top of the condensation cylinder 201 extends to the outside of the top of the housing 1, an air delivery pipe 215 is fixedly installed at the top of the condensation cylinder 201, a plurality of sealing gaskets are fixedly installed on the inner wall of the sealing cylinder 207, and one side of the sealing gasket is located on the outer wall of the condensation cylinder 201; the condensation plates 203 are arranged obliquely upward on the guiding rings 202, by arranging the guiding rings 202 to block above the collection frame 205, the water inside the collection frame 205 is blocked from escaping, and by arranging the sealing cylinder 207 to control the opening and closing of the water outlets 206 on the condensation cylinder 201.

[0022] In this embodiment, by arranging the sealing gaskets on the inner wall of the sealing cylinder 207, when draining water is not required, the sealing gaskets are tightly attached to the water outlets 206 on the outer wall of the condensation cylinder 201 to seal the outer wall of the condensation cylinder 201.

[0023] In some embodiments, refer to Figure 5, a plurality of sliding openings 209 are provided at the top end of the outer shell 1. The sliding openings 209 are arc-shaped. The mounting blocks 208 on the corresponding sealing cylinder 207 are slidably mounted on the inner walls of the corresponding sliding openings 209. A moving frame 210 is fixedly mounted at the top end of one of the mounting blocks 208 on the sealing cylinder 207. A limiting rod 211 is fixedly mounted on the inner wall of the moving frame 210. A moving block 212 is slidably mounted on the outer wall of the limiting rod 211. A first cylinder 213 is fixedly mounted on one side of the moving frame 210. The output end of the first cylinder 213 extends into the interior of the moving frame 210. The moving block 212 is fixedly mounted on the output end of the first cylinder 213. A second cylinder 214 is fixedly mounted at the top end of the outer shell 1. The position of the second cylinder 214 corresponds to that of the moving frame 210. A first connecting plate is fixedly mounted at the output end of the second cylinder 214. The first connecting plate is rotatably mounted on one side of the corresponding moving block 212. When the second cylinder 214 is started, it pushes or pulls the moving frame 210, driving the moving block 212 to slide in the sliding opening 209, thereby driving the sealing cylinder 207 to rotate. The sliding opening 209 is arc-shaped. When the moving frame 210 moves, the moving block 212 on the output end of the first cylinder 213 is controlled to adjust the position of the moving block 212 in the moving frame 210.

[0024] In some embodiments, refer to Figure 1 , two pistons 104 are fixedly mounted on the inner wall of the outer shell 1. One end of the piston 104 is fixedly mounted with a moving plate 1041. A rack is fixedly mounted on one side of the moving plate 1041. The two pistons 104 are symmetrically mounted inside the outer shell 1. A first shaft body 105 is rotatably mounted on the inner wall of the outer shell 1. Both ends of the first shaft body 105 extend to the outside of the top end and the bottom end of the outer shell 1 respectively. A mechanical seal is provided at the connection between the first shaft body 105 and the outer shell 1. A spur gear ring 106 is fixedly mounted on the outer wall of the first shaft body 105. The outer wall of the spur gear ring 106 meshes with the racks on one side of the moving plates 1041 on both sides respectively. Sealing covers 101 are fixedly mounted on both sides of the outer shell 1 through bolts. A plurality of first limiting columns 102 are fixedly mounted on one side of the sealing cover 101. The other end of the piston 104 is fixedly mounted with a plurality of moving cylinders 103. The moving cylinders 103 are slidably mounted on the outer walls of the corresponding first limiting columns 102. One end of the air delivery pipe 215 is connected to an external air supply device, such as an air tank, an air pump, etc., through a pipeline and a solenoid valve. The air outlet cylinder 302 located between the pistons 104 is used for admitting air to push the pistons 104 to move towards both ends of the outer shell 1. The pistons 104 drive the first shaft body 105 to rotate through the meshing of the moving plates 1041 at one end with the spur gear ring 106, thereby driving the valve plate 403 to rotate and open. The air outlet cylinders 302 located at both ends inside the outer shell 1 are used for admitting air to push the pistons 104 to move towards the middle position of the outer shell 1, thereby driving the valve plate 403 to close.

[0025] In this embodiment, a plurality of exhaust valves in the prior art can be provided on one side of the outer shell 1 for discharging the compressed gas inside the outer shell 1.

[0026] In this embodiment, the position of the piston 104 is limited by setting the first limiting post 102 and the moving cylinder 103.

[0027] In some embodiments, referring to Figure 4 , on one side of the outer shell 1 connected to the heat exchange frame 2, a number of mounting holes are provided. On one side of the heat exchange frame 2, a connecting pipe 3 is fixedly installed. One end of the connecting pipe 3 extends into the heat exchange frame 2, and the end of the connecting pipe 3 extending into the heat exchange frame 2 is fixedly installed at the bottom end of the corresponding condensation cylinder 201. The connecting pipe 3 is installed inside the corresponding mounting hole. The other end of the connecting pipe 3 is fixedly installed with a sealing plate 301. Four fixing holes are provided at the bottom end of the outer shell 1. An air outlet cylinder 302 is installed on the inner wall of the fixing hole. The bottom end of the air outlet cylinder 302 is fixedly installed with a fixing plate 303. The fixing plate 303 is fixedly installed at the bottom end of the outer shell 1 by bolts. Two air outlet cylinders 302 are located between the two pistons 104, and the other two air outlet cylinders 302 are located between the sealing cover 101 at one end of the corresponding outer shell 1 and the piston 104. A connecting hole is provided on the outer wall of the air outlet cylinder 302. The other end of the connecting pipe 3 is installed on the inner wall of the corresponding connecting hole; the air outlet cylinder 302 is installed on the outer shell 1 by plugging, and is connected to the connecting pipe 3 by plugging, which is convenient for the installation and disassembly of the air outlet cylinder 302, and is convenient for disassembling the air outlet cylinder 302 to clean the impurities in the air outlet cylinder 302.

[0028] Furthermore, please refer to again Figure 6 , Figure 7, the moving mechanism includes a mounting frame 404, a second shaft body 401, a mounting cylinder 5, a plurality of third cylinders 405, a plurality of support frames 406, a plurality of support plates 407, a second limiting column 408, a rotating frame 409, a plurality of fixing frames 410 and a fourth cylinder 411. The mounting frame 404 is fixedly installed on both sides of the top of the valve body 4. A plurality of third cylinders 405 are fixedly installed on the inner wall of the mounting frame 404. The output end of the third cylinder 405 extends to the outside of the top of the mounting frame 404. The support frame 406 is fixedly installed on the output end of the third cylinder 405. A plurality of support plates 407 are fixedly installed at the bottom end of the housing 1. The support plate 407 is fixedly installed on the top of the support frame 406 by screws. A plurality of second limiting columns 408 are fixedly installed at the bottom end of the support frame 406. A limiting hole is opened at the top end of the mounting frame 404. The second limiting column 408 is slidably installed on the inner wall of the corresponding limiting hole. The second shaft body 401 is rotatably installed at the top end of the valve body 4. The bottom end of the second shaft body 401 extends into the valve body 4. The rotating frame 409 is fixedly installed on both sides of the outer wall of the top end of the second shaft body 401. The mounting cylinder 5 is fixedly installed at one end of the valve body 4 by bolts. A plurality of fixing frames 410 are fixedly installed on the top of the mounting cylinder 5. The fourth cylinder 411 is fixedly installed on the fixing frame 410. A second connecting member is fixedly installed at the output end of the fourth cylinder 411. The second connecting member is rotatably installed on the rotating frame 409. A valve plate 403 is fixedly installed on the outer wall of the second shaft body 401 located inside the valve body 4. A clamping member 402 is fixedly installed at the top end of the second shaft body 401. A clamping groove is opened at the bottom end of the first shaft body 105. A clamping cylinder 107 is fixedly installed on the groove wall of the clamping groove. The clamping member 402 is engaged with the inner wall of the clamping cylinder 107. By setting the fourth cylinder 411, it can assist in pulling or pushing the second shaft body 401 to rotate, reducing the pressure borne by the first shaft body 105 during rotation. And when the piston 104 in the housing 1 is stuck, the third cylinder 405 is activated to push the support plate 407 upward, so that the second shaft body 401 is disengaged from the connection with the first shaft body 105. The third cylinder 405 drives the second shaft body 401 to rotate to control the opening and closing of the valve plate 403, which can facilitate the emergency opening and closing of the valve plate 403 when the piston 104 inside the housing 1 is stuck.

[0029] In this embodiment, the connection between the second shaft body 401 and the valve body 4 is sealed by using a mechanical seal in the prior art.

[0030] Furthermore, the sealing mechanism includes several protective frames 501, a fifth cylinder 502, a moving ring 503, a sealing ring 504, several delivery pipes 505, several spray nozzles 506, and a seal 507. The several protective frames 501 are fixedly installed on the inner wall of the installation cylinder 5. The fifth cylinder 502 is fixedly installed on the inner wall of the protective frame 501. The moving ring 503 is fixedly installed at the output end of the fifth cylinder 502. The sealing ring 504 is fixedly installed at one end of the moving ring 503. The seal 507 is fixedly installed at one end of the valve plate 403. The sealing ring 504 is engaged with the seal 507. The several spray nozzles 506 are fixedly installed at one end of the sealing ring 504. The spray nozzles 506 are located between the sealing ring 504 and the valve plate 403. The several delivery pipes 505 are fixedly installed on the inner wall of the installation cylinder 5. One end of the delivery pipe 505 extends to the outside of the installation cylinder 5, and the other end of the delivery pipe 505 is connected to the corresponding spray nozzle 506. One end of the delivery pipe 505 is connected to a gas tank through an electromagnetic valve and a pump body. When the valve plate 403 is closed, the fourth cylinder 411 is activated to drive the moving ring 503 to move, so that the sealing ring 504 on the moving ring 503 is engaged with the seal 507 on the valve plate 403, and inert gas, such as nitrogen, is filled between the sealing ring 504 and the valve plate 403 through the spray nozzles 506. Through the gas barrier, the pressure difference leakage is offset, and the sealing effect of the air valve is increased.

[0031] In this embodiment, the fifth cylinder 502 can be selected as a high-temperature resistant cylinder.

[0032] The working process and principle of the present invention: One end of the gas delivery pipe 215 is connected to an external gas supply device through a pipeline and an electromagnetic valve. When compressed gas is input, the water vapor in the compressed gas is filtered through the condensation cylinder 201 and the condensation plate 203, and enters the interior of the housing 1 through the air outlet cylinder 302. The air outlet cylinder 302 located between the pistons 104 is used for admitting air to push the pistons 104 to move towards both ends of the housing 1. The pistons 104 drive the first shaft body 105 to rotate through the engagement of the moving plate 1041 at one end thereof with the spur gear ring 106, thereby driving the valve plate 403 to rotate and open. The air outlet cylinders 302 located at both ends inside the housing 1 are used for admitting air to push the pistons 104 to move towards the middle position of the housing 1, thereby driving the valve plate 403 to close.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-load RTO switching zero-leakage air seal damper, characterized in that, Comprising: A housing (1) and a valve body (4), the housing (1) being disposed on top of the valve body (4); A filtering mechanism; the filtering mechanism is disposed on one side of the housing (1), and the filtering mechanism filters the water vapor in the high-pressure gas input into the housing (1) through a plurality of condensation cylinders (201) and condensation plates (203) therein; A moving mechanism, the moving mechanism is disposed between the housing (1) and the valve body (4), and the moving mechanism drives the movement between the housing (1) and the valve body (4) through a third cylinder (405), a support frame (406) and a support plate (407) therein; A sealing mechanism, the sealing mechanism is disposed on one side of the valve body (4), and the sealing mechanism assists in sealing the air valve through a sealing ring (504) and a nozzle (506) therein.

2. The low-load RTO switching zero-leakage air-sealing valve according to claim 1, wherein: The filtering mechanism includes a heat exchange frame (2), a plurality of condensation cylinders (201), a guiding ring (202), a plurality of condensation plates (203), a connecting disk (204), a collecting frame (205), a sealing cylinder (207), a plurality of water outlets (206), a sealing cylinder (207) and a plurality of mounting blocks (208); the heat exchange frame (2) is fixedly installed on one side of the housing (1), a plurality of the condensation cylinders (201) are fixedly installed on the inner wall of the housing (1), a plurality of the guiding rings (202) are fixedly installed on the inner wall of the condensation cylinder (201), a plurality of the condensation plates (203) are fixedly installed at the inner ring of the guiding ring (202), the condensation plate (203) is arc-shaped, the connecting disk (204) is fixedly installed at one end of the condensation plate (203), the collecting frame (205) is fixedly installed at the bottom of the corresponding guiding ring (202), a water leakage port is formed at the connection between the condensation plate (203) and the guiding ring (202), the water leakage port penetrates to the bottom of the guiding ring (202), the sealing cylinder (207) is rotatably installed on the outer wall of the corresponding condensation cylinder (201), a plurality of the water outlets (206) are opened on the outer walls of the sealing cylinder (207), the condensation cylinder (201) and the collecting frame (205), and the positions of the water outlets (206) on the outer walls of the sealing cylinder (207), the condensation cylinder (201) and the collecting frame (205) correspond to each other, and a plurality of the mounting blocks (208) are fixedly installed on the top of the condensation cylinder (201).

3. The low-load rto switching zero-leakage air seal valve according to claim 2, characterized in that: The top of the condensation cylinder (201) extends to the outside of the top end of the housing (1), a gas transmission pipe (215) is fixedly installed at the top end of the condensation cylinder (201), and a plurality of sealing gaskets are fixedly installed on the inner wall of the sealing cylinder (207), and one side of the sealing gasket is located on the outer wall of the condensation cylinder (201).

4. A low-load RTO switching zero-leakage air-sealing valve according to claim 2, characterized in that: A plurality of sliding openings (209) are formed at the top end of the outer shell (1), the sliding openings (209) are arc-shaped, and the mounting blocks (208) on the sealing cylinder (207) are slidably mounted on the inner walls of the corresponding sliding openings (209). A moving frame (210) is fixedly mounted at the top end of one of the mounting blocks (208) on the sealing cylinder (207). A limiting rod (211) is fixedly mounted on the inner wall of the moving frame (210). A moving block (212) is slidably mounted on the outer wall of the limiting rod (211). A first cylinder (213) is fixedly mounted on one side of the moving frame (210). The output end of the first cylinder (213) extends into the moving frame (210). The moving block (212) is fixedly mounted on the output end of the first cylinder (213). A second cylinder (214) is fixedly mounted at the top end of the outer shell (1). The position of the second cylinder (214) corresponds to that of the moving frame (210). A first connecting plate is fixedly mounted on the output end of the second cylinder (214). The first connecting plate is rotatably mounted on one side of the corresponding moving block (212).

5. A low-load RTO switching zero-leakage air seal valve according to claim 2, characterized in that: Two pistons (104) are fixedly mounted on the inner wall of the outer shell (1). A moving plate (1041) is fixedly mounted at one end of the piston (104). A rack is fixedly mounted on one side of the moving plate (1041). The two pistons (104) are symmetrically mounted inside the outer shell (1). A first shaft body (105) is rotatably mounted on the inner wall of the outer shell (1). Both ends of the first shaft body (105) extend to the outside of the top end and the bottom end of the outer shell (1). A mechanical seal is provided at the connection between the first shaft body (105) and the outer shell (1). A spur gear ring (106) is fixedly mounted on the outer wall of the first shaft body (105). The outer wall of the spur gear ring (106) meshes with the racks on one side of the moving plates (1041) on both sides respectively. Sealing covers (101) are fixedly mounted on both sides of the outer shell (1) by bolts. A plurality of first limiting columns (102) are fixedly mounted on one side of the sealing cover (101). A plurality of moving cylinders (103) are fixedly mounted at the other end of the piston (104). The moving cylinders (103) are slidably mounted on the outer walls of the corresponding first limiting columns (102).

6. The low-load RTO switching zero-leakage air seal damper according to claim 5, characterized in that: One side of the outer shell (1) connected to the heat exchange frame (2) is provided with a plurality of mounting holes. One side of the heat exchange frame (2) is fixedly provided with a connecting pipe (3). One end of the connecting pipe (3) extends into the heat exchange frame (2). The end of the connecting pipe (3) extending into the heat exchange frame (2) is fixedly installed at the bottom end of the corresponding condensation cylinder (201). The connecting pipe (3) is installed inside the corresponding mounting hole. The other end of the connecting pipe (3) is fixedly provided with a sealing plate (301). Four fixing holes are provided at the bottom end of the outer shell (1). An air outlet cylinder (302) is installed on the inner wall of the fixing hole. The bottom end of the air outlet cylinder (302) is fixedly provided with a fixing plate (303). The fixing plate (303) is fixedly installed at the bottom end of the outer shell (1) by bolts. Two of the air outlet cylinders (302) are located between the two pistons (104). The other two air outlet cylinders (302) are located between the sealing cover (101) at one end of the corresponding outer shell (1) and the piston (104). A connecting hole is provided on the outer wall of the air outlet cylinder (302). The other end of the connecting pipe (3) is installed on the inner wall of the corresponding connecting hole.

7. The low-load RTO switching zero-leakage air seal valve according to claim 5, wherein: The moving mechanism includes a mounting frame (404), a second shaft body (401), a mounting cylinder (5), a plurality of third cylinders (405), a plurality of support frames (406), a plurality of support plates (407), a second limiting column (408), a rotating frame (409), a plurality of fixing frames (410) and a fourth cylinder (411). The mounting frame (404) is fixedly installed on both sides of the top of the valve body (4). A plurality of the third cylinders (405) are fixedly installed on the inner wall of the mounting frame (404). The output end of the third cylinder (405) extends outside the top end of the mounting frame (404). The support frame (406) is fixedly installed at the output end of the third cylinder (405). A plurality of the support plates (407) are fixedly installed at the bottom end of the outer shell (1). The support plate (407) is fixedly installed on the top of the support frame (406) by screws. A plurality of second limiting columns (408) are fixedly installed at the bottom end of the support frame (406). A limiting hole is provided at the top end of the mounting frame (404). The second limiting column (408) is slidably installed on the inner wall of the corresponding limiting hole. The second shaft body (401) is rotatably installed at the top end of the valve body (4). The bottom end of the second shaft body (401) extends into the valve body (4). The rotating frame (409) is fixedly installed on both sides of the outer wall of the top end of the second shaft body (401). The mounting cylinder (5) is fixedly installed at one end of the valve body (4) by bolts. A plurality of the fixing frames (410) are fixedly installed on the top of the mounting cylinder (5). The fourth cylinder (411) is fixedly installed on the fixing frame (410). The output end of the fourth cylinder (411) is fixedly provided with a second connecting member. The second connecting member is rotatably installed on the rotating frame (409).

8. A low-load RTO switching zero-leakage air-sealing valve according to claim 7, characterized in that: A valve plate (403) is fixedly installed on the outer wall of the second shaft body (401) located inside the valve body (4). A clamping member (402) is fixedly installed at the top end of the second shaft body (401). A clamping groove is formed at the bottom end of the first shaft body (105), and a clamping cylinder (107) is fixedly installed on the inner wall of the clamping groove. The clamping member (402) is clamped with the inner wall of the clamping cylinder (107).

9. The low-load RTO switching zero-leakage air-sealing air valve according to claim 8, characterized in that: The sealing mechanism includes a plurality of protective frames (501), a fifth cylinder (502), a moving ring (503), a sealing ring (504), a plurality of delivery pipes (505), a plurality of spray heads (506) and a sealing member (507). The plurality of protective frames (501) are fixedly installed on the inner wall of the installation cylinder (5). The fifth cylinder (502) is fixedly installed on the inner wall of the protective frame (501). The moving ring (503) is fixedly installed at the output end of the fifth cylinder (502). The sealing ring (504) is fixedly installed at one end of the moving ring (503). The sealing member (507) is fixedly installed at one end of the valve plate (403). The sealing ring (504) is clamped with the sealing member (507). The plurality of spray heads (506) are fixedly installed at one end of the sealing ring (504). The spray heads (506) are located between the sealing ring (504) and the valve plate (403). The plurality of delivery pipes (505) are fixedly installed on the inner wall of the installation cylinder (5). One end of the delivery pipe (505) extends to the outside of the installation cylinder (5), and the other end of the delivery pipe (505) is connected to the corresponding spray head (506).

10. A method for using a low-load rto switching zero-leakage air-sealing air valve according to any one of claims 1-9, characterized in that, Comprising the following steps: S1. The air outlet cylinder (302) located between the pistons (104) is used for admitting air to push the pistons (104) to move towards both ends of the housing (1). The pistons (104) drive the first shaft body (105) to rotate through the engagement of the moving plate (1041) at one end thereof with the spur gear ring (106), thereby driving the valve plate (403) to rotate and open; S2. The air outlet cylinders (302) located at both ends inside the housing (1) are used for admitting air to push the pistons (104) to move towards the middle position of the housing (1), thereby driving the valve plate (403) to close; S3. When the first shaft body (105) rotates, the fourth cylinder (411) can assist in pulling or pushing the second shaft body (401) to rotate, and assist in the rotation of the first shaft body (105) and the second shaft body (401); S4. When compressed gas is input, the water vapor in the compressed gas is filtered by the condensation cylinder (201) and the condensation plate (203).

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