CN201973259U - Detachable high-temperature high-pressure self-sealing valve - Google Patents
Detachable high-temperature high-pressure self-sealing valve Download PDFInfo
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- CN201973259U CN201973259U CN201120062885XU CN201120062885U CN201973259U CN 201973259 U CN201973259 U CN 201973259U CN 201120062885X U CN201120062885X U CN 201120062885XU CN 201120062885 U CN201120062885 U CN 201120062885U CN 201973259 U CN201973259 U CN 201973259U
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Abstract
The utility model relates to a detachable high-temperature high-pressure self-sealing valve, which comprises a valve body and a valve spool positioned in the valve body. A detachable valve seat is arranged in the valve body and used for supporting the bottom of the valve spool; a cage sleeve is sleeved on the valve spool and fixed onto the valve spool by the aid of a cage sleeve nut; and a self-sealing ring is arranged between a valve bonnet and the valve body. When a sealing surface of the valve seat is damaged, the valve seat can be replaced on site, maintenance workload of the self-sealing valve is decreased, the service life of the valve is prolonged greatly, and the purpose of saving energy is achieved.
Description
Technical field
The utility model relates to stop valve, specially refers to a kind of using in the steam-water pipe, to the stop valve of under the High Pressure Difference operating mode sealing surface being protected.
Background technique
In the prior art, the stop valve that uses in the steam-water pipe generally is to meet GB GB12233-2006.Its structural design as shown in Figure 1, the stop valve of this type is valve body and valve seat integral structure.Specifically be that the bottom of spool 4` is butted on the valve seat 5` in the part of valve seat 5` as valve body 1`, and the top of bonnet 3` is selfsealings circle 2`.If damaging appears in valve seat 5`, just the part of valve body 1` is damaged, even other positions are excellent, also can the sealing of valve seat 5` place go wrong, and has to change whole valve body.
The stop valve of said structure in use, particularly under the High Pressure Difference operating mode, valve switch will cause the valve closing imprecision several times.The generation close reason that is not closed completely is that spool in the stop valve and sealing surface of seat destroy, and finally cause valve to change.Therefore, the stop valve of above-mentioned prior art has two defectives: the one, and the valve of this integral structure, in case spool, sealing surface of seat destroy seriously in the valve, the scene can't be repaired; The 2nd, this integral structure valve because valve seat and valve body are overall structure, when valve causes the distortion of valve housing because of the variation of medium temperature in use, will have influence on valve seat itself, and then can cause spool and valve seat to be not closed completely and leak.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that above-mentioned prior art exists, and a kind of selfsealings stop valve structure of new structure type is provided.High Temperature High Pressure self sealing valve of the present utility model requires easy accessibility, can change valve seat at the scene when guaranteeing to work under High Temperature High Pressure, and then reduces the maintenance workload of valve.
In order to reach above-mentioned valve purpose, the technological scheme that the utility model provides is as follows:
A kind of detachable High Temperature High Pressure self sealing valve, this valve includes valve body and is positioned at the spool of valve body, it is characterized in that, be provided with a dismountable valve seat in the described valve body, valve seat supports the bottom of the spool that is set forth in, at valve core upper sleeve the cage cover is arranged, this cage cover is fixed on the spool by a cage cover nut, is provided with the selfsealings circle between described bonnet and the valve body.
In self sealing valve of the present utility model, be provided with a valve seat insert between described valve seat and the valve body.
As a specific implementation form of cage cover in the utility model, described cage cover is a sleeve, the sidewall of this sleeve be provided with paired excavation to punching.
As a specific implementation form of cage cover in the utility model, described cage cover is a labyrinth core bag, has many labyrinth channels on the sidewall of this labyrinth core bag.
Based on technique scheme, detachable High Temperature High Pressure self sealing valve of the present utility model is compared with stop valve of the prior art has following technique effect:
1. self sealing valve of the present utility model is operated under the high temperature and high pressure environment, valve body and valve seat split-type design have been adopted, can be with valve seat in the valve body dismounting, in real work, in case valve seat damage can disassemble valve seat at any time and change from valve body, the scene is easy to repair when the sealing surface of the spool of valve and valve seat damages like this, reduced the workload of repairing, work brings great convenience to valve repair.
2. self sealing valve of the present utility model utilizes cage cover and nut that valve seat is pressed in the valve body; and the cage cover can be selected different structural type for use; so not only realized detachable on the structure; but also can reduce pressure to the current in the valve; reduced the direct impact of current, protection spool and sealing surface to spool.
Description of drawings:
Fig. 1 is the structural representation of the stop valve of valve body and valve seat integral type in the prior art.
Fig. 2 is the structural representation of a kind of detachable High Temperature High Pressure self sealing valve of the utility model.
Embodiment
Below we come detachable High Temperature High Pressure self sealing valve of the present utility model done further with specific embodiment in conjunction with the accompanying drawings and elaborate; use with concrete in the hope of understand structure characteristic of the present utility model more clearly, but can not limit protection domain of the present utility model with this.
The general design idea of High Temperature High Pressure self sealing valve of the present utility model is to realize separating of valve seat and valve body in the valve, makes to disassemble at any time when sealing surface of seat damages and changes.
Please see Figure 2, Fig. 2 is the structural representation of a kind of detachable High Temperature High Pressure self sealing valve of the utility model.As seen from the figure, detachable High Temperature High Pressure self sealing valve of the present utility model is the same with valve of the prior art, also includes valve body 1 and the spool 4 that is positioned at valve body 1.What can embody the utility model characteristics is: be provided with a dismountable valve seat 5 in described valve body 1, this valve seat 5 is supported in the bottom of the spool that is set forth in 4.Be with cage cover 6 on spool 4, this cage cover 6 is fixed on the spool 4 by a nut 7, is provided with selfsealings circle 2 between described bonnet 3 and the valve body 1.
In self sealing valve of the present utility model, be provided with a valve seat insert 8 between described valve seat 5 and the valve body 1.
As a specific implementation form of cage cover in the utility model, described cage cover is a sleeve, the sidewall of this sleeve be provided with paired excavation to punching.
As a specific implementation form of cage cover in the utility model, described cage cover is a labyrinth core bag, has many labyrinth channels on the sidewall of this labyrinth core bag.
Self-sealing high-temp high pressure valve structure of the present utility model relates to self-sealing high-temp high pressure valve in a kind of steam-water pipe, and technical problem to be solved in the utility model provides a kind of novel structure.When the utility model can guarantee that the self sealing valve sealing surface of seat destroys, can change valve seat at the scene again, reduce the maintenance workload of valve, improve valve working life greatly, reach the purpose of energy saving.
Self-sealing high-temp high pressure valve of the present utility model has solved the convertibility of the valve seat that common self-sealing high-temp high pressure valve can't realize.Above embodiment also is demonstration and has described basic principle of the present utility model and major character and advantage of the present utility model, the restriction that the technician of valve industry should understand, the utility model is not subjected to above-mentioned enforcement.
That describes in above-mentioned enforcement and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. detachable High Temperature High Pressure self sealing valve, this valve includes valve body and is positioned at the spool of valve body, it is characterized in that, be provided with a dismountable valve seat in the described valve body, valve seat is supported in the bottom of described spool, at valve core upper sleeve the cage cover is arranged, this cage cover is fixed on the spool by a cage cover nut, is provided with the selfsealings circle between described bonnet and the valve body.
2. a kind of detachable High Temperature High Pressure self sealing valve according to claim 1 is characterized in that, is provided with a valve seat insert between described valve seat and the valve body.
3. a kind of detachable High Temperature High Pressure self sealing valve according to claim 1 is characterized in that described cage cover is a sleeve, the sidewall of this sleeve be provided with paired excavation to punching.
4. a kind of detachable High Temperature High Pressure self sealing valve according to claim 1 is characterized in that described cage cover is a labyrinth core bag, has many labyrinth channels on the sidewall of this labyrinth core bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120062885XU CN201973259U (en) | 2011-03-11 | 2011-03-11 | Detachable high-temperature high-pressure self-sealing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120062885XU CN201973259U (en) | 2011-03-11 | 2011-03-11 | Detachable high-temperature high-pressure self-sealing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201973259U true CN201973259U (en) | 2011-09-14 |
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ID=44578362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120062885XU Expired - Fee Related CN201973259U (en) | 2011-03-11 | 2011-03-11 | Detachable high-temperature high-pressure self-sealing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201973259U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537650A (en) * | 2012-03-06 | 2012-07-04 | 上海电力修造总厂有限公司 | Main steam trap valve of detachable valve seat |
-
2011
- 2011-03-11 CN CN201120062885XU patent/CN201973259U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537650A (en) * | 2012-03-06 | 2012-07-04 | 上海电力修造总厂有限公司 | Main steam trap valve of detachable valve seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20180311 |