CN219866335U - Sealing device of poppet valve - Google Patents
Sealing device of poppet valve Download PDFInfo
- Publication number
- CN219866335U CN219866335U CN202321089010.8U CN202321089010U CN219866335U CN 219866335 U CN219866335 U CN 219866335U CN 202321089010 U CN202321089010 U CN 202321089010U CN 219866335 U CN219866335 U CN 219866335U
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- CN
- China
- Prior art keywords
- valve
- plate
- assembly
- valve plate
- clamping
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 38
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 10
- 239000010439 graphite Substances 0.000 claims abstract description 10
- 238000012856 packing Methods 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims description 15
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005338 heat storage Methods 0.000 description 9
- 239000007789 gas Substances 0.000 description 7
- 238000010030 laminating Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model discloses a sealing device of a lift valve, which comprises a shell, wherein a first valve seat and a second valve seat are connected inside the shell, sealing components are connected to the first valve seat and the second valve seat, a first driving component and a second driving component are connected to the shell, and a first valve plate component and a second valve plate component are respectively connected to the first driving component and the second driving component. When the first valve seat and the second valve seat are closed and sealed, the valve shaft and the flexible valve plate are driven to be close to the base through the operation of the control driving assembly, hard sealing is achieved through the fit of the base and the flexible valve plate, soft sealing is achieved through the fit of the graphite packing gasket on the outer side of the base and the outer side of the flexible valve plate, flexible compensation zero leakage is achieved, and sealing effect is enhanced.
Description
Technical Field
The utility model relates to the technical field of waste gas treatment, in particular to a sealing device of a lifting valve.
Background
RTO (regenerative oxidation) is an exhaust gas treatment device for treating organic exhaust gas by utilizing the principle that organic exhaust gas is decomposed into water and carbon dioxide at high temperature, and consists of a hearth and two or more heat storage beds, wherein the two heat storage beds in the regenerative oxidation furnace with the two heat storage beds can absorb heat and release heat periodically, the organic exhaust gas enters the hearth to be combusted and decomposed after passing through the heat storage beds, and the organic exhaust gas is periodically switched from the heat storage bed A to the heat storage bed B in one period, and the next period is from the heat storage bed B to the heat storage bed A, and the wind direction is switched by two sets of lifting valves corresponding to the two heat storage beds.
The utility model provides a horizontal poppet valve for heat accumulation formula exhaust-gas treatment system for CN203614806U, includes air inlet chamber, intermediate chamber, exhaust chamber, valve shaft, leading wheel, valve plate, first disk seat, casing, second disk seat, position switch and actuating mechanism, its characterized in that the casing in horizontal direction be equipped with air inlet chamber, intermediate chamber and exhaust chamber respectively from left to right, the casing middle part is equipped with the valve shaft, valve shaft level setting, actuating mechanism is connected to valve shaft one end, the valve shaft on be equipped with the valve plate, air inlet chamber right side is equipped with first disk seat, exhaust chamber left side is equipped with the second disk seat, valve plate and first disk seat and second disk seat cooperate. Compared with the prior art, the utility model has the following beneficial effects: because the lifting valve is arranged below the furnace body, the occupied area of the RTO system is reduced, so that the capital cost is reduced, and the working efficiency of the system is improved; the valve shaft and the guide wheel are in rolling friction, so that the resistance is small, and the service life is long.
At present, the sealing mode of adoption in the above-mentioned poppet valve is sealed on the disk seat through the direct laminating of valve plate, but because valve plate and disk seat are contact mechanical seal, but because valve plate and disk seat can cause the rigid abrasion to valve plate and disk seat in long-time closure and opening process for mechanical seal wearing and tearing between, the sealed inefficacy that appears causes the gas leakage, influences exhaust treatment quality.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and the valve comprises a shell, wherein a first valve seat and a second valve seat are connected inside the shell, sealing assemblies are connected to the first valve seat and the second valve seat, a first driving assembly and a second driving assembly are connected to the shell, and a first valve plate assembly and a second valve plate assembly are respectively connected to the first driving assembly and the second driving assembly.
Preferably, the first valve seat and the second valve seat are both connected with mounting plates, limiting rings are connected to the mounting plates, and the mounting plates and the sealing assemblies are located on two sides of the first valve seat.
Preferably, the sealing assembly comprises a base, the base is connected with the first valve seat and the second valve seat, and a graphite packing gasket is arranged on the outer side of the base.
Preferably, the first driving assembly comprises a driving cylinder, one end of the driving cylinder is connected with a valve shaft, and the valve shaft is matched with the limiting ring.
Preferably, the first valve plate assembly comprises a clamping mechanism, the clamping mechanism is fixed on the valve shaft, and the clamping mechanism is detachably connected with a valve plate clamping piece and a flexible valve plate.
Preferably, the clamping mechanism comprises a first clamping plate and a second clamping plate, the first clamping plate is fixedly connected with the valve shaft, the valve plate clamping piece and the flexible valve plate are clamped between the first clamping plate and the second clamping plate, and the first clamping plate and the second clamping plate are detachably connected through a first fastening bolt.
Preferably, the first valve seat and the second valve seat are identical in structure, the first driving assembly and the second driving assembly are identical in structure, and the first valve plate assembly and the second valve plate assembly are identical in structure.
Preferably, the diameter of the valve plate clamping piece is smaller than that of the flexible valve plate, and the valve plate clamping piece is detachably connected with the flexible valve plate through a second fastening bolt.
Preferably, the first clamping plate and the second clamping plate are both L-shaped.
Preferably, the sealing component, the mounting plate and the limiting ring are all provided with two.
The technical scheme has the following advantages or beneficial effects:
when the first valve seat and the second valve seat are closed and sealed, the valve shaft and the flexible valve plate are driven to be close to the base by controlling the driving assembly to work, hard sealing is realized by attaching the base to the flexible valve plate, soft sealing is realized by attaching the graphite packing gasket to the outer side of the base and the flexible valve plate, flexible compensation zero leakage is realized, and sealing effect is enhanced.
Drawings
FIG. 1 is a schematic diagram of a poppet valve according to an embodiment of the present utility model;
FIG. 2 is a schematic illustration of the seal assembly of the poppet valve of FIG. 1;
FIG. 3 is a schematic illustration of the structure of a first valve plate assembly of the poppet valve of FIG. 1;
fig. 4 is a schematic view of the structure of a graphite packing spacer in the poppet valve of fig. 1.
Legend description:
1. a housing; 2. a first valve seat; 3. a second valve seat; 4. a seal assembly; 5. a first drive assembly; 6. a second drive assembly; 7. a first valve plate assembly; 8. a second valve plate assembly; 9. a mounting plate; 10. a limiting ring; 41. a base; 42. a graphite packing gasket; 51. a driving cylinder; 52. a valve shaft; 71. a clamping mechanism; 72. a valve plate clamping piece; 73. a flexible valve plate; 74. a first clamping plate; 75. a second clamping plate; 76. a first fastening bolt; 77. and a second fastening bolt.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Embodiment one:
as shown in fig. 1-4, the sealing device of the poppet valve of the present utility model comprises a housing 1, wherein a first valve seat 2 and a second valve seat 3 are connected inside the housing 1, a sealing component 4 is connected to the first valve seat 2 and the second valve seat 3, a first driving component 5 and a second driving component 6 are connected to the housing 1, and a first valve plate component 7 and a second valve plate component 8 are connected to the first driving component 5 and the second driving component 6 respectively; the first valve plate assembly 7 and the second valve plate assembly 8 can be driven to work through the first driving assembly 5 and the second driving assembly 6 respectively, so that the first valve seat 2 and the second valve seat 3 are opened and closed respectively, and the wind direction is switched.
As shown in fig. 1 and 2, further, the first valve seat 2 and the second valve seat 3 are both connected with a mounting plate 9, the mounting plate 9 is connected with a limiting ring 10, the mounting plate 9 and the sealing component 4 are positioned at two sides of the first valve seat 2, the first driving component 5 comprises a driving cylinder 51, one end of the driving cylinder 51 is connected with a valve shaft 52, the valve shaft 52 is matched with the limiting ring 10, and a roller is arranged inside the limiting ring 10; the valve shaft 52 is controlled to stretch and retract through the driving cylinder 51, and then the first valve plate assembly 7 and the second valve plate assembly 8 are driven to move, so that the first valve seat 2 and the second valve seat 3 are opened and closed, and the valve shaft 52 is limited and slid through the limiting ring 10 connected to the mounting plate 9.
As shown in fig. 1, 2 and 4, the sealing assembly 4 comprises a base 41, the base 41 is connected with the first valve seat 2 and the second valve seat 3, a graphite packing gasket 42 is arranged on the outer side of the base 41, and the graphite packing gasket 42 is a ceramic fiber product and is commonly used for heat insulation and sealing of high-temperature thermal equipment. The aluminum silicate composite material consists of high-purity aluminum oxide, aluminum silicate and other materials, and has excellent high temperature resistance, oxidation resistance, corrosion resistance and mechanical strength; when the first valve seat 2 and the second valve seat 3 are closed and sealed, the valve shaft and the flexible valve plate 73 are driven to be close to the base 41 through controlling the driving assembly to work, the hard sealing is realized through the lamination of the base 41 and the flexible valve plate 73, the soft sealing is realized through the lamination of the graphite packing gasket 42 on the outer side of the base 41 and the flexible valve plate 73, the flexible compensation zero leakage is realized, and the sealing effect is enhanced.
Embodiment two:
as shown in fig. 1 and fig. 2, on the basis of the first embodiment, the present utility model provides a technical solution: the first valve seat 2 and the second valve seat 3 have the same structure, the first driving component 5 and the second driving component 6 have the same structure, the first valve plate component 7 and the second valve plate component 8 have the same structure, and the sealing component 4, the mounting plate 9 and the limiting ring 10 are respectively provided with two components; the first valve plate assembly 7 and the second valve plate assembly 8 can be controlled to work respectively through the first driving assembly 5 and the second driving assembly 6.
As shown in fig. 1 and 3, further, the first valve plate assembly 7 includes a clamping mechanism 71, the clamping mechanism 71 is fixed on the valve shaft 52, a valve plate clamping piece 72 and a flexible valve plate 73 are detachably connected to the clamping mechanism 71, the clamping mechanism 71 includes a first clamping plate 74 and a second clamping plate 75, the first clamping plate 74 is fixedly connected with the valve shaft 52, the valve plate clamping piece 72 and the flexible valve plate 73 are clamped between the first clamping plate 74 and the second clamping plate 75, the first clamping plate 74 and the second clamping plate 75 are detachably connected through a first fastening bolt 76, the diameter of the valve plate clamping piece 72 is smaller than that of the flexible valve plate 73, the valve plate clamping piece 72 and the flexible valve plate 73 are detachably connected through a second fastening bolt 77, and the first clamping plate 74 and the second clamping plate 75 are both in an L shape; through being connected through first fastening bolt 76 between first grip block 74 and the second grip block 75, the valve plate clamping piece 72 and the flexible valve plate 73 of convenient centre gripping between first grip block 74 and the second grip block 75 dismantle maintenance and change, through being connected through second fastening bolt 77 between valve plate clamping piece 72 and the flexible valve plate 73, the convenience is dismantled the change to flexible valve plate 73, the easy maintenance.
Working principle: the staff can drive first valve plate subassembly 7 and second valve plate subassembly 8 work respectively through first drive assembly 5 and second drive assembly 6, realize opening respectively first disk seat 2 and second disk seat 3 and close, realize the switching of wind direction, when carrying out the sealed first disk seat 2 of closure and second disk seat 3, through control drive assembly work, drive valve shaft and flexible valve plate 73 and be close to base 41, laminating through base 41 and flexible valve plate 73, realize hard seal, the rethread graphite packing gasket 42 laminating is in base 41 and flexible valve plate 73 outside, realize soft seal, realize flexible compensation zero leakage, sealed effect has been strengthened.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (10)
1. The utility model provides a sealing device of poppet valve, includes casing (1), its characterized in that, casing (1) internally connected has first disk seat (2) and second disk seat (3), all be connected with seal assembly (4) on first disk seat (2) and second disk seat (3), be connected with first drive assembly (5) and second drive assembly (6) on casing (1), be connected with first valve plate subassembly (7) and second valve plate subassembly (8) on first drive assembly (5) and second drive assembly (6) respectively.
2. A sealing arrangement for a poppet valve as defined in claim 1, wherein: the novel valve is characterized in that the first valve seat (2) and the second valve seat (3) are both connected with a mounting plate (9), the mounting plate (9) is connected with a limiting ring (10), and the mounting plate (9) and the sealing assembly (4) are positioned on two sides of the first valve seat (2).
3. A sealing arrangement for a poppet valve as defined in claim 1, wherein: the sealing assembly (4) comprises a base (41), the base (41) is connected with the first valve seat (2) and the second valve seat (3), and a graphite packing gasket (42) is arranged on the outer side of the base (41).
4. A sealing arrangement for a poppet valve as defined in claim 1, wherein: the first driving assembly (5) comprises a driving cylinder (51), one end of the driving cylinder (51) is connected with a valve shaft (52), and the valve shaft (52) is matched with the limiting ring (10).
5. A sealing arrangement for a poppet valve as defined in claim 1, wherein: the first valve plate assembly (7) comprises a clamping mechanism (71), the clamping mechanism (71) is fixed on the valve shaft (52), and a valve plate clamping piece (72) and a flexible valve plate (73) are detachably connected to the clamping mechanism (71).
6. A sealing arrangement for a poppet valve as defined in claim 5, wherein: the clamping mechanism (71) comprises a first clamping plate (74) and a second clamping plate (75), the first clamping plate (74) is fixedly connected with the valve shaft (52), the valve plate clamping piece (72) and the flexible valve plate (73) are clamped between the first clamping plate (74) and the second clamping plate (75), and the first clamping plate (74) and the second clamping plate (75) are detachably connected through a first fastening bolt (76).
7. A sealing arrangement for a poppet valve as defined in claim 1, wherein: the first valve seat (2) and the second valve seat (3) are identical in structure, the first driving assembly (5) and the second driving assembly (6) are identical in structure, and the first valve plate assembly (7) and the second valve plate assembly (8) are identical in structure.
8. A sealing arrangement for a poppet valve as defined in claim 5, wherein: the diameter of the valve plate clamping piece (72) is smaller than that of the flexible valve plate (73), and the valve plate clamping piece (72) is detachably connected with the flexible valve plate (73) through a second fastening bolt (77).
9. A sealing arrangement for a poppet valve as defined in claim 6, wherein: the first clamping plate (74) and the second clamping plate (75) are L-shaped.
10. A sealing arrangement for a poppet valve as defined in claim 1, wherein: the sealing assembly (4), the mounting plate (9) and the limiting ring (10) are all provided with two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321089010.8U CN219866335U (en) | 2023-05-08 | 2023-05-08 | Sealing device of poppet valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321089010.8U CN219866335U (en) | 2023-05-08 | 2023-05-08 | Sealing device of poppet valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219866335U true CN219866335U (en) | 2023-10-20 |
Family
ID=88323575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321089010.8U Active CN219866335U (en) | 2023-05-08 | 2023-05-08 | Sealing device of poppet valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219866335U (en) |
-
2023
- 2023-05-08 CN CN202321089010.8U patent/CN219866335U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |