CN216768445U - Novel high-temperature waste gas pneumatic switching valve - Google Patents
Novel high-temperature waste gas pneumatic switching valve Download PDFInfo
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- CN216768445U CN216768445U CN202123116215.4U CN202123116215U CN216768445U CN 216768445 U CN216768445 U CN 216768445U CN 202123116215 U CN202123116215 U CN 202123116215U CN 216768445 U CN216768445 U CN 216768445U
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Abstract
The utility model discloses a novel high-temperature waste gas pneumatic switching valve which comprises a valve body; the upper end of the valve body is provided with a connecting rod; the connecting rod is connected with the compression cylinder; the end part of the compression cylinder pushes the piston to connect with the valve plate through the cylinder; an emergency evacuation port is arranged on the side end face of the valve body close to the upper part; the side end face of the valve body close to the lower part is provided with an air inlet; the lower end face of the valve body is provided with an air outlet. Compared with the prior art, the baffle valve has the characteristics of compact and simple structure, small volume, light weight and the like, and the structure also has the functions of bidirectional sealing, fire prevention and static prevention. The most important is that no friction is generated between the cylinder and the valve seat, the service life of the valve is prolonged, and the corrosion resistance and high temperature resistance of the valve body can be greatly improved by adopting a graphite pad sealing structure. The pneumatic valve can reduce the using quantity of the valve by changing the sizes of the gas inlet and outlet diameters so as to realize multiple purposes of one valve, and the switching between the valves is changed into single valve switching, so that the switching is smoother and simpler.
Description
Technical Field
The utility model relates to a novel high-temperature waste gas pneumatic switching valve, and belongs to the field of pneumatic switching valves.
Background
The existing pneumatic switching valve equipment usually adopts a rubber soft sealing mode, because the soft sealing effect is good, but the soft sealing ring has low strength, short service life, and is not high-temperature resistant and corrosion resistant, a hard sealing mode is required to replace the original soft sealing mode, thereby solving the problems of easy melting and corrosion resistance of the rubber sealing ring.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides a novel high-temperature waste gas pneumatic switching valve, so that the technical problems are solved.
In order to achieve the purpose, the utility model adopts the technical scheme that: a novel high-temperature waste gas pneumatic switching valve is characterized by comprising a valve body; the upper end of the valve body is provided with a connecting rod; the connecting rod is connected with the compression cylinder; the end part of the compression cylinder pushes a piston to be connected with a valve plate through the cylinder; an emergency evacuation port is arranged on the side end face of the valve body close to the upper part; the side end face of the valve body close to the lower part is provided with an air inlet and an air inlet II; and the lower end surface of the valve body is provided with an air outlet. A subsection layer is arranged between the emergency evacuation port and the air inlet; the air inlet and the air outlet are arranged into B subsection layers.
Furthermore, an emergency access hole is formed in the side end face, close to the lower portion, of the valve body.
Further, the valve body is integrally welded and sealed in a hard mode.
Furthermore, a graphite pad is arranged at the position where the valve body is connected with the cylinder for sealing.
The utility model has the beneficial effects that: compared with the prior art, the baffle valve has the characteristics of compact and simple structure, small volume, light weight and the like, and the structure also has the functions of bidirectional sealing, fire prevention and static prevention. The most important is that no friction is generated between the cylinder and the valve seat, the service life of the valve is prolonged, and the corrosion resistance and high temperature resistance of the valve body can be greatly improved by adopting a graphite pad sealing structure. Compare in original equipment structure this novel use can be used to environment such as low temperature, normal atmospheric temperature, high temperature, and can also use in operating mode such as well high pressure, also can carry out fine work under the part has certain corrosive environment's condition. The pneumatic valve can realize multiple purposes of one valve by changing the sizes of the air inlet and the air outlet, reduces the using quantity of the valves, changes the switching between the valves into single valve switching, and is smoother and simpler in switching.
Drawings
FIG. 1 is a front view of the present invention in a schematic configuration;
fig. 2 is a schematic left side view of the structure of the present invention.
In the figure: 1. the emergency air exhaust valve comprises a valve body, 11, an emergency evacuation port, 12, an air inlet, 13, an emergency access hole, 14, an air outlet, 2, a connecting rod, 3, a compression cylinder, 4 and a valve plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the utility model and not to limit the scope of the utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention.
As shown in fig. 1 and 2, a novel high-temperature exhaust gas pneumatic switching valve comprises a valve body 1; the upper end of the valve body 1 is provided with a connecting rod 2; the connecting rod 2 is connected with a compression cylinder 3; the end part of the compression cylinder 3 pushes a piston to be connected with a valve plate 4 through a cylinder; an emergency evacuation port 11 is arranged on the side end face of the valve body 1 close to the upper part; the side end surface of the lower part of the valve body 1 is provided with an air inlet 12; the lower end surface of the valve body 1 is provided with an air outlet 14. A subsection layer is arranged between the emergency evacuation port 11 and the air inlet 12; the gas inlet 12 and the gas outlet 14 are arranged in B-stage layers.
In the preferred embodiment, the side end surface of the lower part of the valve body 1 is also provided with an emergency access port 13, and when the valve has a problem, the emergency access port can be accessed.
In the preferred embodiment, the valve body 1 is integrally welded and hard-sealed.
The working principle of the utility model is as follows: the baffle valve has a three-way function by the action of driving the valve plate 4 by the compression cylinder 3, the compression cylinder 3 supplies air from one side of the piston to gather energy to generate air pressure, the air pressure pushes the piston to generate thrust to extend out and return by a spring or dead weight, the number of inlets is 1, the number of outlets is 2, switching of the emergency evacuation port 11 and the air outlet 14 can be realized, when the compression cylinder 3 drives the baffle plate 4 to lift to the A subsection layer, the middle and lower ports of the valve are communicated, and waste gas is discharged from the air outlet 14; when the compression cylinder 3 drives the baffle 4 to descend to the B subsection layer, the upper openings of the valves are communicated, and waste gas is discharged from the emergency evacuation port 11. The valve body 1 is connected with related parts and welded by flanges, and meanwhile, the emergency evacuation port 11 and the gas outlet 14 can change the caliber size, so that the valve has multiple functions, and the original two valves are replaced by one valve, so that the valve is simpler and more convenient.
Compared with the prior art, the baffle valve has the characteristics of compact and simple structure, small volume, light weight and the like, and the structure also has the functions of bidirectional sealing, fire prevention and static prevention. The most important is that no friction is generated between the cylinder and the valve seat, the service life of the valve is prolonged, and the corrosion resistance and high temperature resistance of the valve body can be greatly improved by adopting a graphite pad sealing structure. Compare in original equipment structure this novel use can be used to environment such as low temperature, normal atmospheric temperature, high temperature, and can also use in operating mode such as well high pressure, also can carry out fine work under the part has certain corrosive environment's condition. The pneumatic valve can realize multiple purposes of one valve by changing the sizes of the air inlet and the air outlet, reduces the using quantity of the valves, changes the switching between the valves into single valve switching, and is smoother and simpler in switching.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. A novel high-temperature waste gas pneumatic switching valve is characterized by comprising a valve body (1); the upper end of the valve body (1) is provided with a connecting rod (2); the connecting rod (2) is connected with a compression cylinder (3); the end part of the compression cylinder (3) pushes a piston to be connected with a valve plate (4) through a cylinder; an emergency evacuation port (11) is arranged on the side end face of the valve body (1) close to the upper part; an air inlet (12) is arranged on the side end surface of the valve body (1) close to the lower part; an air outlet (14) is formed in the lower end face of the valve body (1); an A subsection layer is arranged between the emergency evacuation port (11) and the air inlet (12); the air inlet (12) and the air outlet (14) are arranged into B subsection layers.
2. A novel pneumatic switching valve for high-temperature exhaust gas as claimed in claim 1, wherein the side end surface of the lower part of the valve body (1) is further provided with an emergency access hole (13).
3. A novel high-temperature exhaust gas pneumatic switching valve according to claim 1, wherein the valve body (1) is integrally welded and hard sealed.
4. A novel high-temperature exhaust gas pneumatic switching valve according to claim 1, characterized in that a graphite pad is arranged at the position where the valve body (1) is connected with the cylinder (3) for sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123116215.4U CN216768445U (en) | 2021-12-13 | 2021-12-13 | Novel high-temperature waste gas pneumatic switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123116215.4U CN216768445U (en) | 2021-12-13 | 2021-12-13 | Novel high-temperature waste gas pneumatic switching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216768445U true CN216768445U (en) | 2022-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123116215.4U Active CN216768445U (en) | 2021-12-13 | 2021-12-13 | Novel high-temperature waste gas pneumatic switching valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216768445U (en) |
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2021
- 2021-12-13 CN CN202123116215.4U patent/CN216768445U/en active Active
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