CN201858386U - Sealing structure of reversing valve for heat accumulating type heating furnace - Google Patents
Sealing structure of reversing valve for heat accumulating type heating furnace Download PDFInfo
- Publication number
- CN201858386U CN201858386U CN 201020571769 CN201020571769U CN201858386U CN 201858386 U CN201858386 U CN 201858386U CN 201020571769 CN201020571769 CN 201020571769 CN 201020571769 U CN201020571769 U CN 201020571769U CN 201858386 U CN201858386 U CN 201858386U
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- ring
- steel structure
- sealing
- sealing ring
- seal ring
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- Expired - Fee Related
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Abstract
The utility model discloses a sealing structure of a reversing valve for a heat accumulating type heating furnace. The sealing structure comprises a base plate of the reversing valve, a steel structure pressure ring and a sealing ring; the steel structure pressure ring is fastened with the base plate of the reversing valve through a hexagon socket bolt; a groove with a trapezoidal cross section is formed on the steel structure pressure ring; the cross section at the lower part of the sealing ring is also trapezoidal; the sealing ring is inlaid in the trapezoidal groove on the steel structure pressure ring through the deformation of the lower part of the sealing ring; and the steel structure pressure ring is convexly arranged at the upper part of the sealing ring. The sealing structure has the advantages that the sealing structure can be simply and rapidly replaced, the maintenance time and the maintenance cost can be reduced, the sealing strip is disassembled only in about 5 minutes and installed in10 minutes, and the time and the cost are further greatly saved; and meanwhile, the sealing ring pressing ring is made of stainless steel, and the sealing ring is made of high-temperature fluororubber, so that the effect is better, and the sealing ring is prevented from being worn and burnt out after long-term use.
Description
Technical field
The utility model relates to a kind of sealing configuration of selector valve, particularly relates to a kind of sealing configuration of recuperative heater selector valve.
Background technique
In the recuperative heater combustion system, be provided with many selector valves, it is that motion by valve plate makes air (coal gas) and flue gas regularly replace the valve of flow direction in valve, move position by the commutation valve plate, gas flow direction is just in time opposite with last one-period, originally the regenerator of smoke exhaust is replaced by into air (coal gas), and the regenerator of advancing air (coal gas) originally is replaced by smoke exhaust, the pressure of the required source of the gas of selector valve requires greater than 0.4MPa, mainly adopt pressurized air during the steel rolling heating furnace design, simultaneously as a supplement with nitrogen, oven adopts full decentralized control, this stove is equipped with 72 pairs of regenerator burners, i.e. 72 gas regenerators and 72 air regenerators, each regenerator are equipped with a selector valve separately, and full stove is totally 144 selector valves.
The selector valve of present domestic use has: 5 way valve, four-way change-over valve, three-way valve, commonly used is the two-bit triplet selector valve, the structural type of this seal ring mainly is to push down the outside of seal ring by a steel structure trim ring, and steel structure trim ring and tank floor are undertaken fastening by hexagon socket head cap screw, the inner bulge of seal ring, three-way valve is in commutation process, and the convex portion that valve plate is pushed down the seal ring inboard reaches the effect of sealing.Two-bit triplet straight journey selector valve in the existing steel rolling heating furnace combustion system some problems will occur after a period of time, as the seal ring scaling loss, the seal ring pressing plate gets rusty etc., in order not influence work, must change seal ring, because pushing down seal ring, to get the steel structure trim ring be that inner hex head bolt is fastened on the base plate of selector valve, the bolt that has during replacing gets rusty, twist not get off, make and remove and change very inconvenience, all waste time and energy during each the replacing, field statistics is changed and a seal ring is installed to be needed to have increased engineering time and maintenance expenses about 2 hours time.
The model utility content
The utility model institute is at the deficiencies in the prior art, a kind of sealing configuration of recuperative heater selector valve is provided, this new structure is reasonable, change simple, quick, can shorten engineering time and reduce maintenance expenses, it is fastening that technical problem to be solved in the utility model is that the base plate of steel structure trim ring and selector valve is undertaken by hexagon socket head cap screw, and and to adopt embedded structure, the purpose of this utility model between the seal ring be to be achieved through the following technical solutions:
The utility model comprises base plate, steel structure trim ring and the seal ring of selector valve, the base plate of steel structure trim ring and selector valve is undertaken fastening by hexagon socket head cap screw, it is characterized in that on the steel structure trim ring it being that a cross section is trapezoidal groove, the cross section of seal ring bottom also is trapezoidal, and the distortion by the seal ring bottom is embedded in seal ring in the dovetail groove on the steel structure trim ring the then outstanding steel structure trim ring in the top of seal ring.
The utility model when mounted, at first be fastened on the steel structure trim ring on the base plate of selector valve by hexagon socket head cap screw, distortion by the seal ring bottom is embedded in seal ring in the dovetail groove on the steel structure trim ring then, during replacing, only need to take out in the seal ring that will the damage dovetail groove from the steel structure trim ring and change new getting final product.
Compared with prior art, it is simple, quick that the utility model is changed, and can shorten engineering time and reduce maintenance expenses, and the dismounting Stamping Steel Ribbon only about 5 minutes, was installed 10 minutes, had saved time and cost widely.
Description of drawings
Fig. 1 is the utility model plan view;
Fig. 2 is the utility model plan view.
Embodiment
Shown in Fig. 1 to 2, the utility model comprises the base plate of selector valve, steel structure trim ring 2 and seal ring 1, the base plate of steel structure trim ring and selector valve is undertaken fastening by hexagon socket head cap screw, be that a cross section is trapezoidal groove on the steel structure trim ring, the cross section of seal ring bottom also is trapezoidal, and the distortion by the seal ring bottom is embedded in seal ring in the dovetail groove on the steel structure trim ring, the then outstanding steel structure trim ring in the top of seal ring, adopt this novel, the seal ring trim ring can no longer be changed after once mounting puts in place, and simultaneously, the seal ring trim ring is selected stainless steel for use, seal ring is selected aviation special-purpose high temperature fluorine rubber for use, it is high temperature resistant about 400 ℃, and its effect is better, at the scene in the practical application 1 year, oven maintenance 3 times, seal ring does not have wearing and tearing and burning phenomenon.
Claims (1)
1. the sealing configuration of a recuperative heater selector valve, the base plate, steel structure trim ring and the seal ring that comprise selector valve, the base plate of steel structure trim ring and selector valve is undertaken fastening by hexagon socket head cap screw, it is characterized in that on the steel structure trim ring it being that a cross section is trapezoidal groove, the cross section of seal ring bottom also is trapezoidal, and the distortion by the seal ring bottom is embedded in seal ring in the dovetail groove on the steel structure trim ring the then outstanding steel structure trim ring in the top of seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020571769 CN201858386U (en) | 2010-10-22 | 2010-10-22 | Sealing structure of reversing valve for heat accumulating type heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020571769 CN201858386U (en) | 2010-10-22 | 2010-10-22 | Sealing structure of reversing valve for heat accumulating type heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201858386U true CN201858386U (en) | 2011-06-08 |
Family
ID=44104192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020571769 Expired - Fee Related CN201858386U (en) | 2010-10-22 | 2010-10-22 | Sealing structure of reversing valve for heat accumulating type heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201858386U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480758A (en) * | 2013-09-04 | 2014-01-01 | 苏州市燃气设备阀门制造有限公司 | Machining method for valve holder sealing structure of ball valve |
| CN108317262A (en) * | 2017-01-16 | 2018-07-24 | Vat控股公司 | The sealing element and its manufacturing method of vacuum valve |
-
2010
- 2010-10-22 CN CN 201020571769 patent/CN201858386U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480758A (en) * | 2013-09-04 | 2014-01-01 | 苏州市燃气设备阀门制造有限公司 | Machining method for valve holder sealing structure of ball valve |
| CN103480758B (en) * | 2013-09-04 | 2015-08-05 | 苏州市燃气设备阀门制造有限公司 | The processing method of the valve base sealing structure of ball valve |
| CN108317262A (en) * | 2017-01-16 | 2018-07-24 | Vat控股公司 | The sealing element and its manufacturing method of vacuum valve |
| US10830360B2 (en) | 2017-01-16 | 2020-11-10 | Vat Holding Ag | Seal of a vacuum valve and production method therefor |
| CN108317262B (en) * | 2017-01-16 | 2021-10-15 | Vat控股公司 | Sealing member for vacuum valve and method for manufacturing the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20131022 |