Zero-leakage high-temperature-resistant horizontal lift valve

Abstract

The utility model discloses a high-temperature-resistant horizontal lift valve with zero leakage, and particularly relates to the field of lift valves, the high-temperature-resistant horizontal lift valve comprises a box body, one side of the box body is fixedly connected with a fixing block, and a first valve port is sealed through an electric air cylinder assembly, a valve plate, a valve shaft, sealing cotton and a sealing vertical plate. The first valve port and the second valve port are subjected to surface hardness treatment so that end face abrasion caused by long-term use of the valve can be prevented, the valve plate is made of elastic metal materials so that the valve plate can resist the pressure of waste gas and cannot be jacked open by the waste gas, and the lifting valve achieves the zero-leakage effect under the dual guarantee of the elastic metal materials and the structural strength; the box body, the outer surface layer of the valve plate and the valve shaft are made of high-temperature-resistant materials, so that the valve is prevented from being heated and deformed in a high-temperature environment for a long time, the accelerated aging of the valve is avoided, the effects of zero-leakage sealing and high-temperature resistance of the lift valve are achieved, waste gas leakage is avoided, and meanwhile the service life of the lift valve is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of lifting valves, and more specifically, to a zero-leakage, high-temperature-resistant horizontal lifting valve. Background Art

[0002] As one of the important equipment in RTO technology, the sealing performance of the poppet valve directly affects the quality of the entire RTO. A small exhaust gas leakage will greatly reduce the exhaust gas treatment efficiency.

[0003] The existing horizontal lifting valve is frequently used, which may cause the parts to wear after long-term use, thereby increasing the leakage rate and affecting the RTO treatment effect. At the same time, the horizontal lifting valve is in a high temperature for a long time, which may cause the valve to heat up and reduce the service life of the valve;

[0004] Therefore, in view of the above problems, a high temperature resistant horizontal lift valve with zero leakage is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a high-temperature resistant horizontal lift valve with zero leakage to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a zero-leakage high-temperature resistant horizontal poppet valve, comprising a box body, a fixed block is fixedly connected to one side of the box body, a mounting plate is connected to the side of the fixed block by bolts, a first valve port and a second valve port are respectively opened on the two side surfaces of the box body, a fixed barrel is fixedly connected to the inner wall of the second valve port, an electric cylinder assembly is connected to the top of the mounting plate by bolts, a valve plate is fixedly connected to the output end of the electric cylinder assembly, a sealing cotton is fixedly connected to the outer wall of the valve plate, a valve shaft is fixedly connected to the side wall of the valve plate, and a sealing The sealing vertical plate is connected to the box body by bolts, the side wall of the sealing vertical plate is fixedly connected with a connecting rod, the side wall of the connecting rod is fixedly connected with a connecting block, the internal thread of the connecting block is connected with an adjusting bolt, the top of the adjusting bolt is connected with a moving block through a bearing, the surface of the moving block is provided with a slide groove, the inside of the slide groove is penetrated by a movable bolt that penetrates the inside of the connecting block, the side wall of the moving block is fixedly connected with a ball bearing, the side wall of the moving block is fixedly connected with a fixed bearing above the ball bearing, and an air seal and a grease filling pipe are provided on one side of the box body and above the electric cylinder assembly.

[0007] Preferably, the air seal and grease filling pipe pass through the interior of the box and one end is fixedly connected with a fixed bearing and a ball bearing, and the valve shaft passes through the interior of the connecting block and the moving block.

[0008] Preferably, the sealing vertical plate is a sealing ring made of rubber material, and the sealing cotton adopts a five-degree negative chamfer.

[0009] Preferably, the valve plate is made of elastic metal material, and the ball bearing and the fixed bearing are both in contact with the outer surface of the valve shaft.

[0010] Preferably, the box body, the outer surface of the valve plate and the valve shaft are all made of high temperature resistant materials, and the first valve port and the second valve port are both subjected to surface hardness treatment.

[0011] Preferably, the moving block forms a sliding structure with the connecting block through the adjusting bolt, the movable bolt and the sliding groove.

[0012] Technical effects and advantages of the utility model:

[0013] Compared with the prior art, the device guides and positions the valve shaft by screwing the adjusting bolt, the moving block, the slide groove, the movable bolt, the ball bearing and the fixed bearing, closes the first valve port by the electric cylinder assembly, the valve plate, the valve shaft, the sealing cotton and the sealing vertical plate, and performs surface hardness treatment on the first valve port and the second valve port to prevent the end face from being worn due to long-term use of the valve. The valve plate is made of elastic metal material, which can resist the pressure of the exhaust gas and will not be pushed open by the exhaust gas. With the double guarantee of elastic metal material and structural strength, the lifting valve achieves a "zero leakage" effect. The box body, the outer layer of the valve plate and the valve shaft are made of high-temperature resistant materials to avoid thermal deformation caused by the valve being in a high-temperature environment for a long time, resulting in accelerated aging of the valve and reducing the adverse effects of long-term high temperature. By setting an air seal and a butter filling pipe, the gas in the pipeline is prevented from leaking from the gap between the fixed bearing and the ball bearing, and the gas is cooled. At the same time, butter can be added to the valve during normal operation for maintenance, thereby facilitating the realization of a zero-leakage sealing and high-temperature resistant effect of the lifting valve, avoiding the leakage of exhaust gas, and prolonging the service life of the lifting valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the main body of the utility model from the first perspective.

[0015] Figure 2 This is a schematic diagram of the structure of the main body of the utility model from the second viewing angle.

[0016] Figure 3 This is a schematic diagram of the structure of area A of the utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the airtight seal and grease filling pipe of the utility model.

[0018] The accompanying drawings are marked as follows: 1. box body; 2. fixed block; 3. mounting plate; 4. first valve port; 5. second valve port; 6. fixed barrel; 7. electric cylinder assembly; 8. valve plate; 9. sealing cotton; 10. valve shaft; 11. sealing vertical plate; 12. connecting rod; 13. connecting block; 14. adjusting bolt; 15. moving block; 16. slide groove; 17. movable bolt; 18. ball bearing; 19. fixed bearing; 20. air seal and grease filling pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1

[0021] As attached Figures 1 to 4 A zero-leakage, high-temperature resistant horizontal poppet valve is shown, comprising a box body 1, a fixed block 2 is fixedly connected to one side of the box body 1, a mounting plate 3 is bolted to the side of the fixed block 2, a first valve port 4 and a second valve port 5 are respectively provided on the two side surfaces of the box body 1, a fixed barrel 6 is fixedly connected to the inner wall of the second valve port 5, an electric cylinder assembly 7 is bolted to the top of the mounting plate 3, a valve plate 8 is fixedly connected to the output end of the electric cylinder assembly 7, a sealing cotton 9 is fixedly connected to the outer wall of the valve plate 8, a valve shaft 10 is fixedly connected to the side wall of the valve plate 8, a sealing vertical plate 11 is provided on the inner wall of the first valve port 4, and the sealing vertical plate 11 is bolted to the box body 1 On the top, the side wall of the sealing vertical plate 11 is fixedly connected with a connecting rod 12, and the side wall of the connecting rod 12 is fixedly connected with a connecting block 13. The internal thread of the connecting block 13 is connected with an adjusting bolt 14, and the top of the adjusting bolt 14 is connected with a moving block 15 through a bearing. A slide groove 16 is provided on the surface of the moving block 15, and the inside of the slide groove 16 is penetrated by a movable bolt 17 that penetrates the inside of the connecting block 13. The side wall of the moving block 15 is fixedly connected with a ball bearing 18, and the side wall of the moving block 15 and above the ball bearing 18 are fixedly connected with a fixed bearing 19. An air seal and a grease filling pipe 20 are provided on one side of the box body 1 and above the electric cylinder assembly 7.

[0022] Among them: by screwing the adjusting bolt 14, the moving block 15 moves up and down in a small range along the side wall of the connecting block 13 under the cooperation of the slide groove 16 and the movable bolt 17, so that it pushes the ball bearing 18 and the fixed bearing 19 to move, and the ball bearing 18 and the fixed bearing 19 are fitted with the outer wall of the valve shaft 10, which plays a guiding and positioning role for the valve shaft 10, and then the valve plate 8 is pushed to approach the first valve port 4 by the electric cylinder assembly 7, and at the same time, the movement of the valve plate 8 is limited and guided by the valve shaft 10. Under the cooperation of the valve plate 8, the sealing cotton 9 and the sealing vertical plate 11, the first valve port 4 is closed. The surface hardness treatment is performed on the first valve port 4 and the second valve port 5 to prevent the end face from being worn due to long-term use of the valve. The material of the valve plate 8 is elastic metal material. When the electric cylinder assembly 7 pushes the valve plate 8 to close the first valve port 4, the valve plate 8 will be appropriately deformed to fit the sealing vertical plate 11. At the same time, the structural strength of the valve plate 8 itself is sufficient It is enough to resist the pressure of exhaust gas and ensure that the valve plate 8 will not be pushed open by the exhaust gas. With the dual protection of elastic metal materials and structural strength, the lifting valve achieves a "zero leakage" effect. At the same time, the box body 1, the outer layer of the valve plate 8 and the valve shaft 10 are all made of high-temperature resistant materials to avoid thermal deformation of the valve in a high-temperature environment for a long time, which leads to accelerated aging of the valve and reduces the adverse effects of long-term high temperature. At the same time, horizontal installation is adopted to avoid thermal bending of the valve shaft 10 to ensure switching speed and zero leakage. By arranging an air seal and a butter filling pipe 20, the valve is sealed to prevent the gas in the pipeline from leaking from the gap between the fixed bearing 19 and the ball bearing 18, and to cool it down. At the same time, the fixed bearing 19 and the ball bearing 18 can be filled with butter during the normal operation of the valve, and they can be maintained. This makes it easy to achieve a zero-leakage seal and high-temperature resistance for the lifting valve, avoids the leakage of exhaust gas, and increases the service life of the lifting valve.

[0023] Embodiment 2

[0024] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods. Figures 1 to 4 As shown, see the following description for details: an air seal and a grease filling pipe 20 passes through the interior of the housing 1 and one end is fixedly connected to a fixed bearing 19 and a ball bearing 18, and the valve shaft 10 passes through the interior of the connecting block 13 and the moving block 15; further, by providing an air seal and a grease filling pipe 20, a valve is sealed to prevent gas in the pipeline from leaking from the gap between the fixed bearing 19 and the ball bearing 18, and to cool it down. At the same time, during the normal operation of the valve, grease can be added to the fixed bearing 19 and the ball bearing 18 for maintenance.

[0025] As a preferred embodiment, the sealing plate 11 is a sealing ring made of rubber material, and the sealing cotton 9 adopts a five-degree negative chamfer; further, by setting the sealing plate 11 to be a sealing ring made of rubber material, a sealing effect is achieved, and by setting the sealing cotton 9 to adopt a five-degree negative chamfer, with the cooperation of the valve plate 8 and the sealing plate 11, a close fit between the valve plate 8 and the first valve port 4 is achieved.

[0026] As a preferred embodiment, the valve plate 8 is made of elastic metal material, and the ball bearing 18 and the fixed bearing 19 are both fitted to the outer surface of the valve shaft 10; further, the ball bearing 18 and the fixed bearing 19 are fitted to the outer wall of the valve shaft 10 to guide and position the valve shaft 10.

[0027] As a preferred embodiment, the box body 1, the outer layer of the valve plate 8 and the valve shaft 10 are all made of high-temperature resistant materials, and the first valve port 4 and the second valve port 5 are both subjected to surface hardness treatment; further, the high-temperature resistant material can prevent the valve from being subjected to heat deformation caused by being in a high-temperature environment for a long time, thereby causing accelerated aging of the valve, and reducing the adverse effects of long-term high temperature. The surface hardness treatment can prevent the end face from being worn due to long-term use of the valve.

[0028] As a preferred embodiment, the moving block 15 forms a sliding structure with the connecting block 13 through the adjusting bolt 14, the movable bolt 17 and the slide groove 16; further, by screwing the adjusting bolt 14, the moving block 15 moves up and down in a small range along the side wall of the connecting block 13 with the cooperation of the slide groove 16 and the movable bolt 17, so that it pushes the ball bearing 18 and the fixed bearing 19 to move.

[0029] The working process of the utility model is as follows: when using this kind of high-temperature resistant horizontal poppet valve with zero leakage, first, by screwing the adjusting bolt 14, the moving block 15 is moved up and down in a small range along the side wall of the connecting block 13 under the cooperation of the slide groove 16 and the movable bolt 17, so that it pushes the ball bearing 18 and the fixed bearing 19 to move, and the ball bearing 18 and the fixed bearing 19 are fitted with the outer wall of the valve shaft 10, which plays a guiding and positioning role for the valve shaft 10, and then the valve plate 8 is pushed to approach the first valve port 4 by the electric cylinder assembly 7, and at the same time, the movement of the valve plate 8 is limited and guided by the valve shaft 10. With the cooperation of the valve plate 8, the sealing cotton 9 and the sealing vertical plate 11, the first valve port 4 is closed. The surface hardness treatment is performed on the first valve port 4 and the second valve port 5 to prevent the end face from being worn due to long-term use of the valve. The material of the valve plate 8 is elastic metal material. When the electric cylinder assembly 7 pushes the valve plate 8 to close the first valve port 4, the valve plate 8 will The valve plate 8 is appropriately deformed to fit the sealing vertical plate 11. At the same time, the structural strength of the valve plate 8 itself is sufficient to resist the pressure of the exhaust gas, ensuring that the valve plate 8 will not be pushed open by the exhaust gas. The lifting valve achieves a "zero leakage" effect under the dual protection of elastic metal materials and structural strength. At the same time, the box body 1, the outer layer of the valve plate 8 and the valve shaft 10 are all made of high-temperature resistant materials to avoid thermal deformation caused by the valve being in a high-temperature environment for a long time, resulting in accelerated aging of the valve and reducing the adverse effects of long-term high temperature. At the same time, horizontal installation is adopted to avoid thermal bending of the valve shaft 10 to ensure switching speed and zero leakage. By setting an air seal and a butter filling pipe 20, the valve is sealed to prevent the gas in the pipeline from leaking from the gap between the fixed bearing 19 and the ball bearing 18, and to cool it down. At the same time, the fixed bearing 19 and the ball bearing 18 can be filled with butter during normal operation of the valve for maintenance. This is the working principle of this kind of high-temperature resistant horizontal lifting valve with zero leakage.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A zero-leakage, high-temperature resistant horizontal poppet valve, comprising a housing (1), characterized in that: A fixing block (2) is fixedly connected to one side of the box body (1), and a mounting plate (3) is connected to the side of the fixing block (2) by bolts. A first valve port (4) and a second valve port (5) are respectively provided on the two side surfaces of the box body (1), and a fixing barrel (6) is fixedly connected to the inner wall of the second valve port (5). The top of the mounting plate (3) is connected to an electric cylinder assembly (7) by bolts, and the output end of the electric cylinder assembly (7) is fixedly connected to a valve plate (8), and a sealing cotton (9) is fixedly connected to the outer wall of the valve plate (8). A valve shaft (10) is fixedly connected to the side wall of the valve plate (8), and a sealing vertical plate (11) is provided on the inner wall of the first valve port (4), and the sealing vertical plate (11) is connected to the box body (1) by bolts. The side wall of the box (1) is fixedly connected with a connecting rod (12), the side wall of the connecting rod (12) is fixedly connected with a connecting block (13), the internal thread of the connecting block (13) is connected with an adjusting bolt (14), the top of the adjusting bolt (14) is connected with a moving block (15) through a bearing, the surface of the moving block (15) is provided with a slide groove (16), the inside of the slide groove (16) is penetrated by a movable bolt (17) which penetrates the inside of the connecting block (13), the side wall of the moving block (15) is fixedly connected with a ball bearing (18), the side wall of the moving block (15) and is fixedly connected with a fixed bearing (19) above the ball bearing (18), and a gas seal and a grease filling pipe (20) are provided on one side of the box body (1) and above the electric cylinder assembly (7).

2. A zero-leakage high-temperature resistant horizontal lift valve according to claim 1, characterized in that: The air seal and grease filling pipe (20) passes through the interior of the box body (1) and one end is fixedly connected to a fixed bearing (19) and a ball bearing (18), and the valve shaft (10) passes through the interior of the connecting block (13) and the moving block (15).

3. The zero-leakage high-temperature resistant horizontal lift valve according to claim 1, characterized in that: The sealing vertical plate (11) is a sealing ring made of rubber material, and the sealing cotton (9) adopts a five-degree negative chamfer.

4. The zero-leakage high-temperature resistant horizontal lift valve according to claim 1, characterized in that: The valve plate (8) is made of elastic metal material, and the ball bearing (18) and the fixed bearing (19) are both fitted to the outer surface of the valve shaft (10).

5. A zero-leakage high-temperature resistant horizontal lift valve according to claim 4, characterized in that: The housing (1), the outer surface of the valve plate (8) and the valve shaft (10) are all made of high temperature resistant materials, and the first valve port (4) and the second valve port (5) are both subjected to surface hardness treatment.

6. A zero-leakage high-temperature resistant horizontal lift valve according to claim 2, characterized in that: The moving block (15) forms a sliding structure with the connecting block (13) through the adjusting bolt (14), the movable bolt (17) and the sliding groove (16).

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