CN202927128U - Floating sleeve type combined sealing valve seat - Google Patents
Floating sleeve type combined sealing valve seat Download PDFInfo
- Publication number
- CN202927128U CN202927128U CN 201220524718 CN201220524718U CN202927128U CN 202927128 U CN202927128 U CN 202927128U CN 201220524718 CN201220524718 CN 201220524718 CN 201220524718 U CN201220524718 U CN 201220524718U CN 202927128 U CN202927128 U CN 202927128U
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- CN
- China
- Prior art keywords
- valve seat
- floating
- sealing
- soft
- shaped
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a floating sleeve type combined sealing valve seat which comprises a valve seat, a valve body and a ball body. The valve seat adopts a floating structure on the valve body, a spring is installed between the valve seat and the valve body, a soft leaking structure is added on a sealing face of the valve seat to form a dual-sealing structure combining rigidity seal and soft seal, the soft leaking structure is formed by fitting a U-shaped air inflation valve seat embedded in a chute of a floating support sleeve and a surface of the ball body, and a U-shaped locating ring is contracted in the U-shaped air inflation valve seat. The U-shaped air inflation valve seat is made of fluororubber materials. The direction of the U-shaped air inflation valve seat is vertical to flowing direction of a medium. The floating sleeve type combined sealing valve seat can remove particles and impurities from the sealing face of the ball body, can fill microcosmic inequality on the sealing face of the ball body, avoids permeation of dry dust, and prevents internal leakage of the valve seat.
Description
Technical field
The utility model relates to a kind of floating bushing cartridge type combination seal valve seat.
Background technique
In the pipelines of industry with particle mortar and dry ash and Korrosionsmedium such as power plant, mine, metallurgy and chemical industry, ball valve is used for rate-of flow to be controlled and opens and closes, and the structural type of its sealing surface of seat directly has influence on quality and the working life of valve.
In the dry ash system pipeline, be the powder with certain viscosity due to dry ash, also have permeability, thus people usually to adopt the valve sealing surface of seat be the ball valve of hard sealing structure.Though hard seal valve seat can be peeled off the ball seal face with the dry ash on sealing surface and solid particle, yet due to sealing surface in course of working, product size tolerance and form and position tolerance cause the nao-and micro relief of sealing surface, hard sealing surface can not effectively compensate this nao-and micro relief, easily causes leakage.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of floating bushing cartridge type combination seal valve seat, particle and impurity can not only be removed from the ball seal face, and the nao-and micro relief on the ball seal face can be filled and led up, stop the infiltration of dry ash, prevent the internal leakage of valve seat.
Concrete technological scheme of the present utility model is as follows: floating bushing cartridge type combination seal valve seat, comprise valve seat, valve body and spheroid, valve seat adopts floating structure on valve body, between valve seat and valve body, spring is installed, the sealing surface of valve seat has increased soft sealing structure, form the double-channel sealing structure that hard sealing combines with soft seal, described soft sealing structure is cooperatively interacted by the surface that is embedded in U-shaped inflation valve seat in floating bracket sleeve skewed slot and spheroid and forms, and the U-shaped positioning ring shrinks in U-shaped and inflates in valve seat.
U-shaped inflation valve seat adopts the fluorine rubber material to make.
The perpendicular direction of U-shaped inflation valve seat and media flow.
The beneficial effects of the utility model: sealing redesigns the utility model to ball seat, the sealing surface design is become the double sealing of hard sealing and soft seal, hard sealing can be removed particle and impurity from the ball seal face, soft seal can be filled and led up the nao-and micro relief on the ball seal face, stops the infiltration of dry ash; U-shaped inflation valve seat adopts the fluorine rubber material to make, and makes the nao-and micro relief to forming in spherome surface fine finishing process have certain compensation ability; The perpendicular direction of U-shaped inflation valve seat and media flow, can reduce the impact that is subjected to medium, the area that sealing surface exposes is less, medium is less to impact and the wearing and tearing of sealing surface, therefore impact and the wearing and tearing of medium to valve seat have been reduced, effectively prevent the internal leakage of valve seat, improved simultaneously working life and the reliability of valve.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, floating bushing cartridge type combination seal valve seat, comprise valve seat 1, valve body 4 and spheroid 6, valve seat 1 adopts floating structure on valve body 4, between valve seat 1 and valve body 4, spring 2 is installed, it is characterized in that: the sealing surface of valve seat 1 has increased soft sealing structure, form the double-channel sealing structure that hard sealing combines with soft seal, described soft sealing structure is cooperatively interacted by the surface that is embedded in the interior U-shaped inflation valve seat 5 of floating bracket sleeve skewed slot 7 and spheroid 6 and forms, and U-shaped positioning ring 3 shrinks in U-shaped inflation valve seat 5.
U-shaped inflation valve seat 5 adopts the fluorine rubber material to make.
The perpendicular direction of U-shaped inflation valve seat 5 and media flow.
Claims (3)
1. floating bushing cartridge type combination seal valve seat, comprise valve seat (1), valve body (4) and spheroid (6), valve seat (1) is at the upper floating structure that adopts of valve body (4), between valve seat (1) and valve body (4), spring (2) is installed, it is characterized in that: the sealing surface of valve seat (1) has increased soft sealing structure, form the double-channel sealing structure that hard sealing combines with soft seal, described soft sealing structure is cooperatively interacted by the surface that is embedded in the interior U-shaped inflation valve seat (5) of floating bracket sleeve skewed slot (7) and spheroid (6) and forms, U-shaped positioning ring (3) shrinks in U-shaped inflation valve seat (5).
2. floating bushing cartridge type combination seal valve seat as claimed in claim 1 is characterized in that: U-shaped inflation valve seat (5) adopts the fluorine rubber material to make.
3. floating bushing cartridge type combination seal valve seat as claimed in claim 1 or 2, is characterized in that: the perpendicular direction of U-shaped inflation valve seat (5) and media flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524718 CN202927128U (en) | 2012-10-15 | 2012-10-15 | Floating sleeve type combined sealing valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524718 CN202927128U (en) | 2012-10-15 | 2012-10-15 | Floating sleeve type combined sealing valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202927128U true CN202927128U (en) | 2013-05-08 |
Family
ID=48217087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220524718 Expired - Fee Related CN202927128U (en) | 2012-10-15 | 2012-10-15 | Floating sleeve type combined sealing valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202927128U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221786A (en) * | 2015-10-26 | 2016-01-06 | 大连福佳·大化石油化工有限公司 | Soft or hard double-seal ball valve |
| CN105952924A (en) * | 2016-07-04 | 2016-09-21 | 岳阳东方自控工程设备有限公司 | High-pressure ball valve sealed by inflatable type flexible sealing rings arranged inside valve seats |
| CN108286615A (en) * | 2017-01-09 | 2018-07-17 | 凯泰阀门(集团)有限公司 | Compound sealing structure for ball valve |
-
2012
- 2012-10-15 CN CN 201220524718 patent/CN202927128U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221786A (en) * | 2015-10-26 | 2016-01-06 | 大连福佳·大化石油化工有限公司 | Soft or hard double-seal ball valve |
| CN105952924A (en) * | 2016-07-04 | 2016-09-21 | 岳阳东方自控工程设备有限公司 | High-pressure ball valve sealed by inflatable type flexible sealing rings arranged inside valve seats |
| CN108286615A (en) * | 2017-01-09 | 2018-07-17 | 凯泰阀门(集团)有限公司 | Compound sealing structure for ball valve |
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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: 20130508 Termination date: 20131015 |