Novel high-temperature-resistant horizontal pushing valve

Abstract

The utility model discloses a novel high-temperature-resistant horizontal pushing valve, which belongs to the technical field of valves, and comprises a cover plate, one end of the cover plate is fixedly connected with a plurality of support pipes, an outer flange is fixedly connected between the plurality of support pipes and the cover plate, one end of the plurality of support pipes far away from the cover plate is fixedly connected with an inner flange, and the inner flange corresponds to the outer flange. The end, away from the outer flange, of the inner flange is fixedly connected with a hollowed-out baffle, a shaft rod is slidably inserted between the cover plate and the hollowed-out baffle and penetrates through the outer flange and the inner flange, a valve plate is arranged on the outer surface of the shaft rod and located between the outer flange and the inner flange, and the end, close to the valve plate, of the inner flange is fixedly connected with a double-layer graphite packing sealing ring. The utility model discloses a heat accumulating type oxidation furnace valve, and aims to solve the problems that a heat accumulating type oxidation furnace valve in the prior art is usually sealed by a sealing ring made of aramid fibers and carbon materials, the aging speed can be increased under long-time high-temperature use, the sealing effect and normal use of a heat accumulating type oxidation furnace are affected, and the overall durability is low.

Description

Technical Field

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

[0002] The regenerative thermal oxidizer is a highly efficient organic waste gas treatment equipment. Compared with traditional catalytic combustion and direct-fired thermal oxidizers (TO), it has the characteristics of high thermal efficiency (≥95%), low operating cost, and the ability to handle large air volumes of low- and medium-concentration waste gases. When the concentration is slightly higher, it can also perform secondary waste heat recovery, greatly reducing production and operation costs.

[0003] At present, a plurality of valves are usually arranged on a regenerative thermal oxidizer to control the input and discharge of exhaust gas. When treating exhaust gas, since the regenerative thermal oxidizer will generate a certain high temperature, the existing regenerative thermal oxidizer valves are usually sealed with sealing rings made of aramid and carbon materials, which will accelerate the aging speed under long-term high-temperature use, thereby affecting the sealing effect and the normal use of the regenerative thermal oxidizer, and the overall durability is low. Therefore, the utility model proposes a new high-temperature resistant push valve. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a new type of high-temperature resistant push valve, aiming to solve the problem that the valves of the thermal storage oxidation furnace in the prior art are usually sealed with sealing rings made of aramid and carbon materials, which will accelerate the aging speed under long-term high-temperature use, thereby affecting the sealing effect and the normal use of the thermal storage oxidation furnace, and the overall durability is low.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the utility model adopts the following technical solutions:

[0008] A novel high-temperature resistant push valve comprises a cover plate, one end of the cover plate is fixedly connected to a plurality of support tubes, an outer flange is fixedly connected between the plurality of support tubes and the cover plate, an end of the plurality of support tubes away from the cover plate is fixedly connected to an inner flange, and the inner flange corresponds to the outer flange, an end of the inner flange away from the outer flange is fixedly connected to a hollow baffle, a shaft rod is slidably inserted between the cover plate and the hollow baffle, and the shaft rod passes through the outer flange and the inner flange, a valve plate is arranged on the outer surface of the shaft rod, and the valve plate is located between the outer flange and the inner flange, and a double-layer graphite packing sealing ring is fixedly connected to the end of the inner flange close to the valve plate.

[0009] As a preferred solution of the utility model, a shaft seal is fixedly connected between the outer surface of the shaft rod and the inner surface of the cover plate.

[0010] As a preferred solution of the utility model, a linear shaft seal is fixedly connected to the cover plate, and the shaft rod movably passes through the linear shaft seal.

[0011] As a preferred solution of the utility model, the hollow baffle is rotatably connected to two pulleys, and the shaft rod slides through the two pulleys.

[0012] 3. Beneficial effects

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] 1) In this solution, the movement of the shaft and the valve plate is controlled by the cylinder, and the valve plate contacts the double-layer graphite packing seal to cut off the ventilation of the regenerative thermal oxidizer and control the transportation of exhaust gas in the regenerative thermal oxidizer system. The double-layer graphite packing seal adopts a double-layer design of graphite packing. The graphite packing has good high temperature resistance and can extend its service life in the regenerative thermal oxidizer.

[0015] 2) In this solution, after the valve plate contacts the double-layer graphite packing seal to close the valve, the hollow baffle with a hollow design produces a certain elastic deformation through the extrusion of the valve plate, thereby ensuring the durability of the valve without affecting the flow of exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the utility model;

[0017] Figure 2 It is a three-dimensional diagram of the utility model;

[0018] Figure 3 It is an exploded view of the utility model.

[0019] Description of the numbers in the figure:

[0020] 1. Cover plate; 2. Support tube; 3. Outer flange; 4. Inner flange; 5. Hollow baffle; 6. Shaft; 7. Valve plate; 8. Double-layer graphite packing seal; 9. Shaft seal; 10. Linear shaft seal; 11. Pulley. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings 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.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Example:

[0025] See also Figure 1-3 A new type of high-temperature resistant push valve comprises a cover plate 1, one end of the cover plate 1 is fixedly connected with a plurality of support tubes 2, an outer flange 3 is fixedly connected between the plurality of support tubes 2 and the cover plate 1, an inner flange 4 is fixedly connected at one end of the plurality of support tubes 2 away from the cover plate 1, and the inner flange 4 corresponds to the outer flange 3, a hollow baffle 5 is fixedly connected at one end of the inner flange 4 away from the outer flange 3, a shaft rod 6 is slidably inserted between the cover plate 1 and the hollow baffle 5, and the shaft rod 6 passes through the outer flange 3 and the inner flange 4, a valve plate 7 is arranged on the outer surface of the shaft rod 6, and the valve plate 7 is located between the outer flange 3 and the inner flange 4, and a double-layer graphite packing sealing ring 8 is fixedly connected at one end of the inner flange 4 close to the valve plate 7.

[0026] In this embodiment, the entire push valve is installed on the thermal oxidation furnace through the cover plate 1 to control the exhaust gas transportation in the thermal oxidation furnace. The outer flange 3 and the inner flange 4 correspond to the exhaust gas processing port of the thermal oxidation furnace and are fixed to the thermal oxidation furnace by bolts. The shaft rod 6 is moved by connecting the cylinder. When the thermal oxidation furnace is transporting the exhaust gas, the shaft rod 6 is controlled by the cylinder to slide on the cover plate 1 and the hollow baffle plate 5. The shaft rod 6 drives the valve plate 7 to move. The valve plate 7 is away from the inner flange 4 to open the valve to transport the exhaust gas. When the thermal oxidation furnace is processing the exhaust gas, the shaft rod 6 and the valve plate 7 are controlled by the cylinder to move, so that the valve plate 7 approaches the inner flange 4 and contacts the double-layer graphite packing sealing ring 8. After the double-layer graphite packing sealing ring 8 contacts the valve plate 7, the valve is closed to cut off the ventilation, so that the exhaust gas is processed in the thermal oxidation furnace.

[0027] Specifically, a shaft seal 9 is fixedly connected between the outer surface of the shaft rod 6 and the inner surface of the cover plate 1 .

[0028] In this embodiment, the shaft rod 6 and the valve plate 7 are connected by the shaft seal 9, so that the connection between the shaft rod 6 and the valve plate 7 is kept tight, thereby preventing the exhaust gas from leaking from the connection between the shaft rod 6 and the valve plate 7.

[0029] Specifically, a linear shaft seal 10 is fixedly connected to the cover plate 1 , and the shaft rod 6 movably passes through the linear shaft seal 10 .

[0030] In this embodiment, the linear shaft seal 10 is used to ensure the sealing between the cover plate 1 and the shaft rod 6 to prevent the exhaust gas from leaking from the connection between the shaft rod 6 and the cover plate 1 .

[0031] Specifically, two pulleys 11 are rotatably connected to the hollow baffle plate 5 , and the shaft rod 6 slides through the two pulleys 11 .

[0032] In this embodiment, the two pulleys 11 are in contact with the shaft 6, so that the shaft 6 can move smoothly.

[0033] Working principle: The entire push valve is installed in the regenerative thermal oxidation furnace. The cylinder pushes the shaft rod 6 to move, and the shaft rod 6 drives the valve plate 7 to move. The valve plate 7 moves away from the inner flange 4 to open the valve. The regenerative thermal oxidation furnace transports the exhaust gas. The valve plate 7 moves toward the inner flange 4 and contacts with the double-layer graphite packing sealing ring 8 to cut off the ventilation and close the valve.

[0034] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. A novel high temperature resistant push valve, comprising a cover plate (1), characterized in that: One end of the cover plate (1) is fixedly connected to a plurality of support tubes (2), an outer flange (3) is fixedly connected between the plurality of support tubes (2) and the cover plate (1), one end of the plurality of support tubes (2) away from the cover plate (1) is fixedly connected to an inner flange (4), and the inner flange (4) corresponds to the outer flange (3), and one end of the inner flange (4) away from the outer flange (3) is fixedly connected to a hollow baffle (5), a shaft (6) is slidably inserted between the cover plate (1) and the hollow baffle (5), and the shaft (6) passes through the outer flange (3) and the inner flange (4), a valve plate (7) is provided on the outer surface of the shaft (6), and the valve plate (7) is located between the outer flange (3) and the inner flange (4), and one end of the inner flange (4) close to the valve plate (7) is fixedly connected to a double-layer graphite packing sealing ring (8).

2. A novel high temperature resistant push valve according to claim 1, characterized in that: A shaft seal (9) is fixedly connected between the outer surface of the shaft rod (6) and the inner surface of the cover plate (1).

3. A novel high temperature resistant push valve according to claim 2, characterized in that: A linear shaft seal (10) is fixedly connected to the cover plate (1), and the shaft rod (6) movably penetrates the linear shaft seal (10).

4. A novel high temperature resistant push valve according to claim 3, characterized in that: The hollow baffle plate (5) is rotatably connected to two pulleys (11), and the shaft (6) slides through the two pulleys (11).

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