CN204372222U - Novel eccentric semispherical valve - Google Patents
Novel eccentric semispherical valve Download PDFInfo
- Publication number
- CN204372222U CN204372222U CN201420845889.9U CN201420845889U CN204372222U CN 204372222 U CN204372222 U CN 204372222U CN 201420845889 U CN201420845889 U CN 201420845889U CN 204372222 U CN204372222 U CN 204372222U
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- CN
- China
- Prior art keywords
- valve
- sealing surface
- valve seat
- medium
- eccentric shaft
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- Expired - Fee Related
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Abstract
The utility model belongs to valve field, is fast for existing ball valve sealing surface wear and a kind of novel eccentric half-ball valve that is that provide.Comprise valve body, trim ring, valve seat, spherical crown, eccentric shaft, axle sleeve, valve gap, play hanging piece, drive unit, Sealing, drive unit is connected with valve gap, playing hanging piece is installed on valve gap, spherical crown is arranged on eccentric shaft, valve seat is connected on valve body by trim ring, axle sleeve is located between eccentric shaft and valve gap, and the outside adjacent sealing surface of sealing surface being positioned at medium entrance end in valve seat is provided with one and prevents sealing surface not by annular boss that medium directly washes away.The utility model adds unique boss design on valve seat; effectively protect valve seat; be exclusively used in grain slag system; because containing certain quantity of slag in valve medium; so valve valve seat adopts special construction; make medium have when entering valve pocket parabolic flow to, protection sealing surface is not directly washed away by medium, improves valve working life.
Description
Technical field
The utility model belongs to valve field, particularly relates to a kind of ball valve.
Background technique
Ball valve is one of valve class with fastest developing speed America and Europe in recent years, and the progress of related industries technology makes various eccentric ball valve be born.It, by eccentric rotation axis, drives spherical crown fixed thereon to reach the keying of valve.Simply, reliably structural type and effective sealing means, make it have more advantage than the conventional valve such as gate valve, butterfly valve, it experienced by the time test of more than ten years, and is subject to liking of more users.
Some have in the medium channel of foreign material use ordinary ball valve time, the foreign material in medium directly can wash away sealing surface, make sealing surface wear very fast, thus affects the sealing of ball valve, the maintenance rate of increase ball valve.
Model utility content
The purpose of this utility model is fast for existing ball valve sealing surface wear and a kind of novel eccentric half-ball valve that is that provide.
The utility model is achieved by the following technical solution:
Novel eccentric semispherical valve, comprise valve body, trim ring, valve seat, spherical crown, eccentric shaft, axle sleeve, valve gap, play hanging piece, drive unit, Sealing, drive unit is connected with valve gap, playing hanging piece is installed on valve gap, spherical crown is arranged on eccentric shaft, valve seat is connected on valve body by trim ring, and axle sleeve is located between eccentric shaft and valve gap, and the outside adjacent sealing surface of sealing surface being positioned at medium entrance end in valve seat is provided with one and prevents sealing surface not by annular boss that medium directly washes away.
The height of projection of boss near feed-water end side reduces gradually, forms a step surface between the side that the adjacent sealing surface of boss is arranged and valve seat.
Boss is an arc shaped surface outwards caved near the appearance cross section of the projection of feed-water end side.
The beneficial effects of the utility model: the utility model adds unique boss design on valve seat; effectively protect valve seat; be exclusively used in grain slag system; because containing certain quantity of slag in valve medium; so valve valve seat adopts special construction; make medium have when entering valve pocket parabolic flow to, protection sealing surface is not directly washed away by medium, improves valve working life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model entirety.
Fig. 2 is the linkage structure schematic diagram of eccentric crankshaft and valve seat.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail.
Embodiment
Novel eccentric semispherical valve as depicted in figs. 1 and 2, comprise valve body 1, trim ring 2, valve seat 3, spherical crown 4, eccentric shaft 5, axle sleeve 6, valve gap 7, play hanging piece 8, drive unit 9, Sealing 10, drive unit 9 is connected with valve gap 7, playing hanging piece 8 is installed on valve gap 7, spherical crown 4 is arranged on eccentric shaft 5, valve seat 3 is connected on valve body 1 by trim ring 2, axle sleeve 6 is located between eccentric shaft 5 and valve gap 7, and the outside adjacent sealing surface of sealing surface being positioned at medium entrance end in valve seat 3 is provided with one and prevents sealing surface not by annular boss 11 that medium directly washes away.The height of projection of boss 11 near feed-water end side reduces gradually, forms a step surface between the side that the adjacent sealing surface of boss 11 is arranged and valve seat.Boss 11 is an arc shaped surface outwards caved near the appearance cross section of the projection of feed-water end side.
Have employed eccentric shaft, valve is made to have good selfsealings: due to the existence of throw of eccentric, when valve closing, in valve, the pressure of water makes spherical crown have one around the counterclockwise moment of eccentric shaft axis, spherical crown is tightly pressed on valve seat, hydraulic pressure is larger, and closing forces is also larger, namely has good selfsealings.
Eccentric shaft and spherical crown are hidden in valve body and are not washed; Due to wobbler action, in closing process, only have spherical crown to be at the last moment just close to valve seat, do not form wearing and tearing, and without any obstruction in runner, completely unimpeded, loss of head is very little.
More than show and describe basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope, simple change and the replacement of those ordinary skill in the art are all within protection domain of the present utility model.
Claims (3)
1. Novel eccentric semispherical valve, comprise valve body (1), trim ring (2), valve seat (3), spherical crown (4), eccentric shaft (5), axle sleeve (6), valve gap (7), play hanging piece (8), drive unit (9), Sealing (10), drive unit (9) is connected with valve gap (7), playing hanging piece (8) is installed on valve gap (7), spherical crown (4) is arranged on eccentric shaft (5), valve seat (3) is connected on valve body (1) by trim ring (2), axle sleeve (6) is located between eccentric shaft (5) and valve gap (7), it is characterized in that: the outside adjacent sealing surface of sealing surface being positioned at medium entrance end in valve seat (3) is provided with one and prevents sealing surface not by annular boss (11) that medium directly washes away.
2. Novel eccentric semispherical valve according to claim 1, is characterized in that: the height of projection of boss (11) near feed-water end side reduces gradually, forms a step surface between the side that the adjacent sealing surface of boss (11) is arranged and valve seat.
3. Novel eccentric semispherical valve according to claim 2, is characterized in that: boss (11) is an arc shaped surface outwards caved near the appearance cross section of the projection of feed-water end side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420845889.9U CN204372222U (en) | 2014-12-26 | 2014-12-26 | Novel eccentric semispherical valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420845889.9U CN204372222U (en) | 2014-12-26 | 2014-12-26 | Novel eccentric semispherical valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204372222U true CN204372222U (en) | 2015-06-03 |
Family
ID=53328444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420845889.9U Expired - Fee Related CN204372222U (en) | 2014-12-26 | 2014-12-26 | Novel eccentric semispherical valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204372222U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606214A (en) * | 2017-08-29 | 2018-01-19 | 苏州纽威阀门股份有限公司 | A kind of eccentric ball valve |
| CN108413062A (en) * | 2018-05-15 | 2018-08-17 | 鞍山亨通高炉设备工程技术有限公司 | Eccentric type bottom ball face sealing lock |
-
2014
- 2014-12-26 CN CN201420845889.9U patent/CN204372222U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606214A (en) * | 2017-08-29 | 2018-01-19 | 苏州纽威阀门股份有限公司 | A kind of eccentric ball valve |
| CN108413062A (en) * | 2018-05-15 | 2018-08-17 | 鞍山亨通高炉设备工程技术有限公司 | Eccentric type bottom ball face sealing lock |
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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 |
Granted publication date: 20150603 Termination date: 20151226 |
|
| EXPY | Termination of patent right or utility model |