CN215981124U - Sealing device for gas reversing valve of heating furnace - Google Patents
Sealing device for gas reversing valve of heating furnace Download PDFInfo
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- CN215981124U CN215981124U CN202121391530.5U CN202121391530U CN215981124U CN 215981124 U CN215981124 U CN 215981124U CN 202121391530 U CN202121391530 U CN 202121391530U CN 215981124 U CN215981124 U CN 215981124U
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Abstract
The utility model relates to the technical field of coal sealing devices of heating furnaces, in particular to a sealing device for a coal gas reversing valve of a heating furnace, wherein exhaust valves are arranged on two sides of the lower part of an air exchange channel; a valve sealing plate is arranged in the air exchange channel; the valve sealing plate is connected with the air cylinder; a sealing base is arranged at the lower part of the valve sealing plate; the middle part of the sealing base is provided with a base vent hole; a sealing gasket is arranged at the joint of the sealing base and the ventilation channel; a cushion block is arranged at the bottom of the sealing gasket; the cushion block is connected with the sealing base through a fixing bolt; the upper part of the cushion block is respectively provided with a supporting block and a sealing block; the supporting block is arranged in a stepped structure; the top of the supporting block is close to the lower end of the ventilation channel; the sealing block is arranged in a stepped structure; the bottom of the sealing block is close to the lower end of the air exchange channel, so that the problems of poor sealing effect, short service life and inconvenience in replacement of the coal gas reversing valve of the heating furnace are solved.
Description
Technical Field
The utility model relates to the technical field of heating furnace coal sealing devices, in particular to a sealing device for a heating furnace gas reversing valve.
Background
The gas burner reversing valve of the heating furnace has frequent action (one reversing in 1 minute), the sealing requirement is high, once the sealing is out of order, a large amount of gas can be remained in a pipeline between the reversing valve and the sealing, and the gas is sucked to a flue by a draught fan and discharged in the reversing process, so that certain influence is generated on the discharge of waste gas. In the prior art; because the sealing needs about 5 hours for replacing once every time, the common variety replacing time does not have the sealing replacing condition and needs blank waiting time; the production efficiency is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a sealing device for a heating furnace gas reversing valve, which solves the problems of poor sealing effect, short service life and inconvenient replacement of the heating furnace gas reversing valve.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a sealing device for a gas reversing valve of a heating furnace comprises a gas exchange passage, an exhaust valve, a valve sealing plate, a cylinder, a sealing base, a sealing gasket and a base vent hole; exhaust valves are arranged on two sides of the lower part of the air exchange channel; a valve sealing plate is arranged in the air exchange channel; the valve sealing plate is connected with the air cylinder; a sealing base is arranged at the lower part of the valve sealing plate; the middle part of the sealing base is provided with a base vent hole; a sealing gasket is arranged at the joint of the sealing base and the ventilation channel; a cushion block is arranged at the bottom of the sealing gasket; the cushion block is connected with the sealing base through a fixing bolt; the upper part of the cushion block is respectively provided with a supporting block and a sealing block; the supporting block is arranged in a stepped structure; the top of the supporting block is close to the lower end of the ventilation channel; the sealing block is arranged in a stepped structure; the bottom of the sealing block is close to the lower end of the air exchange channel.
Further, a sealing groove is formed at the bottom of the valve sealing plate; the concave structure of the sealing groove is the same as the convex structure of the sealing block.
Furthermore, the middle part of the valve sealing plate is provided with a pressure-resistant groove.
Further, an airtight ring is arranged on the outer side of the valve sealing plate; the airtight ring is arranged in a multilayer combined structure.
Furthermore, a sealing rubber strip is arranged at the top of each step on the sealing block.
Further, an airtight lug is arranged on the outer side of the sealing block; the top of the airtight bump is connected with the bottom of the valve sealing plate.
Compared with the prior art, the utility model can realize one of the following beneficial effects:
1. exhaust valves are arranged on two sides of the lower part of the air exchange channel; a valve sealing plate is arranged in the air exchange channel; the valve sealing plate is connected with the air cylinder; a sealing base is arranged at the lower part of the valve sealing plate; the middle part of the sealing base is provided with a base vent hole; a sealing gasket is arranged at the joint of the sealing base and the ventilation channel; a cushion block is arranged at the bottom of the sealing gasket; the cushion block is connected with the sealing base through a fixing bolt; the upper part of the cushion block is respectively provided with a supporting block and a sealing block; the supporting block is arranged in a stepped structure; the top of the supporting block is close to the lower end of the ventilation channel; the sealing block is arranged in a stepped structure; the bottom of the sealing block is close to the lower end of the air exchange channel, and the supporting block and the sealing block which are arranged on the sealing gasket can be used; the supporting block provides support for the sealing gasket; the sealing block improves the sealing property; the cushion block is connected with the sealing base through the fixing bolt, so that the sealing gasket is convenient to replace.
2. The bottom of the valve sealing plate is provided with a sealing groove; the concave structure of the sealing groove is the same as the convex structure of the sealing block, so that the sealing groove and the sealing block which are arranged can form multi-stage step sealing, and the air tightness of the whole sealing device is improved.
3. The valve sealing plate is provided with a pressure-resistant groove in the middle, so that the pressure resistance of the valve sealing plate can be improved by the pressure-resistant groove arranged at the bottom of the valve sealing plate, and the sealing air pressure is improved.
4. An airtight ring is arranged on the outer side of the valve sealing plate; the airtight ring is arranged in a multilayer combined structure, and the tightness of the valve sealing plate and the air exchange passage can be improved through the arranged airtight ring.
5. A sealing rubber strip is arranged at the top of each step on the sealing block, and the sealing rubber strips which can be arranged improve the sealing performance of the sealing block.
6. An airtight lug is arranged on the outer side of the sealing block; the top of the airtight bump is connected with the bottom of the valve sealing plate, so that the arranged airtight bump can be connected with the bottom of the valve sealing plate; and the transverse sealing performance with the valve sealing plate is improved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a schematic view of the structure of the present invention.
FIG. 3 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Example 1
A sealing device for a gas reversing valve of a heating furnace comprises a gas exchange channel 1, an exhaust valve 2, a valve sealing plate 3, a cylinder 4, a sealing base 5, a sealing gasket 6 and a base vent hole 7; exhaust valves 2 are arranged on two sides of the lower part of the air exchange passage 1; a valve sealing plate 3 is arranged in the air exchange passage 1; the valve sealing plate 3 is connected with the cylinder 4; the lower part of the valve sealing plate 3 is provided with a sealing base 5; a base vent hole 7 is arranged in the middle of the sealing base 5; a sealing gasket 6 is arranged at the joint of the sealing base 5 and the air exchange channel 1; the bottom of the sealing gasket 6 is provided with a cushion block 8; the cushion block 8 is connected with the sealing base 5 through a fixing bolt 9; the upper part of the cushion block 8 is respectively provided with a supporting block 10 and a sealing block 11; the supporting block 10 is arranged in a stepped structure; the top of the supporting block 10 is close to the lower end of the air exchange channel 1; the sealing block 11 is arranged in a stepped structure; the bottom of the sealing block 11 is close to the lower end of the air exchange passage 1, and a supporting block and the sealing block which are arranged on the sealing gasket can be used; the supporting block provides support for the sealing gasket; the sealing block improves the sealing property; the cushion block is connected with the sealing base through the fixing bolt, so that the sealing gasket is convenient to replace.
Example 2
On the basis of embodiment 1, a sealing groove 14 is arranged at the bottom of the valve sealing plate 3; the sunken structure of the sealing groove 14 is the same as the raised structure of the sealing block 11, so that the arranged sealing groove and the sealing block can form multi-stage stepped sealing, and the air tightness of the whole sealing device is improved.
Example 3
On the basis of embodiment 1, the middle part of the valve sealing plate 3 is provided with the pressure-resistant groove 15, so that the pressure-resistant groove arranged at the bottom of the valve sealing plate can improve the pressure resistance and the sealing air pressure of the valve sealing plate.
Example 4
On the basis of the embodiment 1, an airtight ring 16 is arranged outside the valve sealing plate 3; the airtight ring 16 is arranged in a multilayer combined structure, and the tightness of the valve sealing plate and the air exchange passage can be improved through the arranged airtight ring.
Example 5
On the basis of the embodiment 1, the sealing rubber strip 12 is arranged at the top of each step on the sealing block 11, so that the arranged sealing rubber strip can improve the sealing performance of the sealing block.
Example 6
On the basis of the embodiment 1, the outer side of the sealing block 11 is provided with an airtight lug 13; the top of the airtight bump 13 is connected with the bottom of the valve sealing plate 3, so that the arranged airtight bump can be connected with the bottom of the valve sealing plate; and the transverse sealing performance with the valve sealing plate is improved.
Although the utility model has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (6)
1. The sealing device for the gas reversing valve of the heating furnace is characterized in that: the device comprises an air exchange passage (1), an exhaust valve (2), a valve sealing plate (3), an air cylinder (4), a sealing base (5), a sealing gasket (6) and a base vent hole (7); exhaust valves (2) are arranged on two sides of the lower part of the air exchange passage (1); a valve sealing plate (3) is arranged in the air exchange passage (1); the valve sealing plate (3) is connected with the cylinder (4); a sealing base (5) is arranged at the lower part of the valve sealing plate (3); a base vent hole (7) is arranged in the middle of the sealing base (5); a sealing gasket (6) is arranged at the joint of the sealing base (5) and the air exchange channel (1); a cushion block (8) is arranged at the bottom of the sealing gasket (6); the cushion block (8) is connected with the sealing base (5) through a fixing bolt (9); the upper part of the cushion block (8) is respectively provided with a supporting block (10) and a sealing block (11); the supporting block (10) is arranged in a stepped structure; the top of the supporting block (10) is close to the lower end of the air exchange channel (1); the sealing block (11) is arranged in a stepped structure; the bottom of the sealing block (11) is close to the lower end of the air exchange duct (1).
2. The sealing device for the gas reversing valve of the heating furnace as claimed in claim 1, wherein: a sealing groove (14) is formed at the bottom of the valve sealing plate (3); the concave structure of the sealing groove (14) is the same as the convex structure of the sealing block (11).
3. The sealing device for the gas reversing valve of the heating furnace as claimed in claim 1, wherein: and a pressure-resistant groove (15) is formed in the middle of the valve sealing plate (3).
4. The sealing device for the gas reversing valve of the heating furnace as claimed in claim 1, wherein: an airtight ring (16) is arranged on the outer side of the valve sealing plate (3); the airtight ring (16) is arranged in a multi-layer combined structure.
5. The sealing device for the gas reversing valve of the heating furnace as claimed in claim 1, wherein: and a sealing rubber strip (12) is arranged at the top of each step on the sealing block (11).
6. The sealing device for the gas reversing valve of the heating furnace as claimed in claim 1, wherein: an airtight bump (13) is arranged on the outer side of the sealing block (11); the top of the airtight bump (13) is connected with the bottom of the valve sealing plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121391530.5U CN215981124U (en) | 2021-06-22 | 2021-06-22 | Sealing device for gas reversing valve of heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121391530.5U CN215981124U (en) | 2021-06-22 | 2021-06-22 | Sealing device for gas reversing valve of heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215981124U true CN215981124U (en) | 2022-03-08 |
Family
ID=80578410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121391530.5U Active CN215981124U (en) | 2021-06-22 | 2021-06-22 | Sealing device for gas reversing valve of heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215981124U (en) |
-
2021
- 2021-06-22 CN CN202121391530.5U patent/CN215981124U/en active Active
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