CN202418609U - Guiding and sealing valve for valve seat - Google Patents
Guiding and sealing valve for valve seat Download PDFInfo
- Publication number
- CN202418609U CN202418609U CN 201120563624 CN201120563624U CN202418609U CN 202418609 U CN202418609 U CN 202418609U CN 201120563624 CN201120563624 CN 201120563624 CN 201120563624 U CN201120563624 U CN 201120563624U CN 202418609 U CN202418609 U CN 202418609U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- sleeve
- seal
- spool
- 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 discloses a guiding and sealing valve for a valve seat, and the guiding and sealing valve comprises a valve body, a valve cap, a valve core and a sleeve, wherein the sleeve is arranged in the valve body, the valve cap is pressed on the sleeve, the valve rod, the valve core and the valve seat are arranged in the sleeve, the lower part of the valve rod and the upper part of the valve element are fixed, one side of the valve core is provided with a side channel, the lower part of the valve core is sheathed outside the upper part of the valve seat, the lower surface of the valve seat is contacted with the valve body, the side of the lower part of the valve seat is contacted with the sleeve, the lower part of the valve core is provided with an indent guide part, the diameter of the guiding part is the same with the outer diameter of the upper part of the valve seat, the guiding part is provided with a throttle window, the center of the valve seat is provided with a runner which is communicated with the runner at the center of the valve body, the lower part of the valve core and the valve seat are sealed by virtue of a valve core sealing surface and a valve seat sealing surface, and the height of the throttle window is more than the height of the valve seat sealing surface. The guiding and sealing valve for the valve seat disclosed by the utility model has a simple structure, and can be used for protecting the valve core and the valve seat sealing surface, reducing the fluid velocity of the sealing surface, preventing the sealing surface from being washed, and protecting the sealing surface.
Description
Technical field
The utility model relates to a kind of pilot valve, particularly relates to a kind of valve seat pilot seal valve.
Background technique
Traditional valve if valve seat is to separate with valve body, just needs a sleeve, when this sleeve compresses valve seat again, has also played spool is carried out leading role.And this structure traditionally; Be that window on sealing surface of seat, valve core sealed cover and the sleeve all is closer, particularly use traditional structure, should satisfy and regulate ratio for modulating valve; Cavitation erosion and washing away when protecting valve seat to avoid the little aperture of valve again; Particularly under the operating mode of High Pressure Difference, this is difficult to accomplish, this also is a modulating valve long reason of working life why.
Summary of the invention
The utility model is accomplished in order to solve deficiency of the prior art; The purpose of the utility model provides a kind of simple in structure, protection valve core sealed cover; Reduce the liquid speed of sealing surface, prevent that sealing surface from washing away, the valve seat pilot seal valve of protection sealing surface.
A kind of valve seat pilot seal valve of the utility model comprises valve body, valve gap, spool, valve rod and sleeve, and said sleeve is positioned at said valve body; Said valve gap is pressed on the said sleeve, and said valve rod, spool and valve seat all are positioned at said sleeve, and the top of said stem lower portion and said spool is fixed; One side of said sleeve is provided with lateral channels, and the bottom of said spool is set in outside the top of said valve seat, and the lower surface of said valve seat contacts with valve body; The bottom side of said valve seat contacts with sleeve; Said spool bottom is provided with the guide portion of indent, and said guide portion diameter is identical with said valve seat top external diameter, offers the throttling window on the said guide portion; Said valve seat central authorities are provided with runner; Said runner communicates with the central runner of said valve body, and said spool bottom and said valve seat are through valve core sealed cover and valve base sealing face seal, and said throttle window open height is higher than said sealing surface of seat height.
A kind of valve seat pilot seal valve of the utility model can also be:
The internal diameter of said sleeve is greater than the external diameter of said spool.
Said cover tube bottom is connected with said valve seal.
Said cover tube bottom is provided with seal groove, in the said seal groove seal ring is set, and said seal ring all contacts with said valve body with said cover tube bottom.
Be tightly connected between said valve seat bottom and the said valve body.
Said valve seat bottom is provided with seal groove, in the said seal groove seal ring is set, and said seal ring all contacts with said valve body with said valve seat bottom.
Leave the gap between the bottom surface of said spool and the said valve seat.
A kind of valve seat pilot seal valve of the utility model; Because said spool bottom is provided with the guide portion of indent, said guide portion diameter is identical with said valve seat top external diameter, offers the throttling window on the said guide portion; Said valve seat central authorities are provided with runner; Said runner communicates with the central runner of said valve body, and said spool bottom and said valve seat are through valve core sealed cover and valve base sealing face seal, and said throttle window open height is higher than said sealing surface of seat height.Like this, the advantage that has in terms of existing technologies is simple in structure, protection valve core sealed cover, reduces the liquid speed of sealing surface, prevents that sealing surface from washing away, the protection sealing surface.
Description of drawings
A kind of valve seat pilot seal of Fig. 1 the utility model valve embodiment sectional view.
The figure number explanation
1 ... Valve body 2 ... Seal ring 3 ... Valve seat
4 ... Sleeve 5 ... Spool 6 ... Valve rod
7 ... Guide portion 8 ... Throttling window 9 ... Lateral channels
10 ... Runner 11 ... Gap 12 ... Valve core sealed cover
13 ... Sealing surface of seat
Embodiment
Fig. 1 below in conjunction with accompanying drawing does further explain to a kind of valve seat pilot seal valve of the utility model.
A kind of valve seat pilot seal valve of the utility model please refer to Fig. 1, comprises valve body 1, valve gap, spool 5, valve rod 6 and sleeve 4; Said sleeve 4 is positioned at said valve body 1, and said valve gap is pressed on the said sleeve 4, and said valve rod 6, spool 5 and valve seat 3 all are positioned at said sleeve 4; The top of said valve rod 6 bottoms and said spool 5 is fixed, and a side of said spool 5 is provided with lateral channels 9, and the bottom of said spool 5 is set in outside the top of said valve seat 3; The lower surface of said valve seat 3 contacts with valve body 1, and the bottom side of said valve seat 3 contacts with sleeve 4, and said spool 5 bottoms are provided with the guide portion 7 of indent; Said guide portion 7 diameters are identical with said valve seat 3 top external diameters; Offer throttling window 8 on the said guide portion 7, said valve seat central authorities are provided with runner 10, and said runner 10 communicates with the runner 10 of said valve body central authorities; Said spool 5 bottoms and said valve seat 3 are through valve core sealed cover 12 and sealing surface of seat 13 sealings, and said throttling window 8 highly is higher than said sealing surface of seat 13 height.Further, said spool 5 bottoms are provided with the plane of inclination, and said valve core sealed cover 12 is set on the said plane of inclination, and said valve seat 3 corresponding positions are provided with the plane of inclination of inclination equal angular, and said sealing surface of seat 13 is set on the said plane of inclination.The angle of inclination can be 60 °.During use, valve gap is pushed down sleeve 4, and sleeve 4 passes to valve seat 3 with power then, makes to seal between valve seat 3 and the valve body 1.When valve opening; Because the throttling window 8 on the guide portion 7 of valve seat 3 is higher than sealing surface of seat 13, therefore, after the sealing surface of seat 13 of spool 5 and valve seat 3 breaks away from part distance; Just have big flow, thereby protected valve seat 3 and valve core sealed cover 12 when little aperture, to avoid washing away.And throttling window 8 positions and the size of valve seat 3 guide portions 7 can design as required, select arbitrarily.When spool 5 during in normal enable possition, sealing surface of seat 13 has basically no the fluid process, and valve core sealed cover 12 has also been protected the sealing surface of spool 5 because the throttling window 8 on guide portion 7 also has certain distance.Sealing surface of seat 13 diameters of this structure are far longer than inner flow passage 10 diameters of guide portion 7, and such structural design is in order to reduce the liquid speed at sealing surface place, to prevent washing away of sealing surface, the protection sealing surface.
A kind of valve seat pilot seal valve of the utility model please refer to Fig. 1, can also be the external diameter of the internal diameter of said sleeve 4 greater than said spool 5 in front on the basis of technological scheme.Increase the circulation area of fluid like this, the fluid that gets into valve seat is evenly got into, reduce partial fluid speed.In addition, can also be to leave gap 11 between bottom surface and the said valve seat 3 of said spool 5.Bump between the bottom surface that can avoid spool 5 like this and the valve seat 3 and can't make sealing surface contact fully and seal.
A kind of valve seat pilot seal valve of the utility model please refer to Fig. 1, can also be that said sleeve 4 bottoms and said valve body 1 are tightly connected in front on the basis of technological scheme.The concrete structure that is tightly connected is that said sleeve 4 bottoms are provided with seal groove, and seal ring 2 is set in the said seal groove, and said seal ring 2 all contacts with said valve body 1 with said sleeve 4 bottoms.Certainly can also take other the structure that is tightly connected.In addition, can also be to be tightly connected between said valve seat 3 bottoms and the said valve body 1.The concrete structure that is tightly connected is that said valve seat 3 bottoms are provided with seal groove, and seal ring 2 is set in the said seal groove, and said seal ring 2 all contacts with said valve body 1 with said valve seat 3 bottoms.Certainly can also take other the structure that is tightly connected.
Above-mentionedly only several kinds of specific embodiments in the utility model are explained; But can not be as the protection domain of the utility model; Every equivalence variation of having done according to the design spirit in the utility model or modification or equal proportion are amplified or are dwindled etc., all should think the protection domain that falls into the utility model.
Claims (7)
1. a valve seat pilot seal valve comprises valve body, valve gap, spool, valve rod and sleeve, and said sleeve is positioned at said valve body; Said valve gap is pressed on the said sleeve, and said valve rod, spool and valve seat all are positioned at said sleeve, and the top of said stem lower portion and said spool is fixed; One side of said sleeve is provided with lateral channels, and the bottom of said spool is set in outside the top of said valve seat, and the lower surface of said valve seat contacts with valve body; The bottom side of said valve seat contacts with sleeve; It is characterized in that: said spool bottom is provided with the guide portion of indent, and said guide portion diameter is identical with said valve seat top external diameter, offers the throttling window on the said guide portion; Said valve seat central authorities are provided with runner; Said runner communicates with the central runner of said valve body, and said spool bottom and said valve seat are through valve core sealed cover and valve base sealing face seal, and said throttle window open height is higher than said sealing surface of seat height.
2. a kind of valve seat pilot seal valve according to claim 1, it is characterized in that: the internal diameter of said sleeve is greater than the external diameter of said spool.
3. a kind of valve seat pilot seal valve according to claim 1 and 2, it is characterized in that: said cover tube bottom is connected with said valve seal.
4. a kind of valve seat pilot seal valve according to claim 3, it is characterized in that: said cover tube bottom is provided with seal groove, in the said seal groove seal ring is set, and said seal ring all contacts with said valve body with said cover tube bottom.
5. a kind of valve seat pilot seal valve according to claim 1 and 2 is characterized in that: be tightly connected between said valve seat bottom and the said valve body.
6. a kind of valve seat pilot seal valve according to claim 5 is characterized in that: said valve seat bottom is provided with seal groove, in the said seal groove seal ring is set, and said seal ring all contacts with said valve body with said valve seat bottom.
7. a kind of valve seat pilot seal valve according to claim 1 and 2 is characterized in that: leave the gap between the bottom surface of said spool and the said valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120563624 CN202418609U (en) | 2011-12-29 | 2011-12-29 | Guiding and sealing valve for valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120563624 CN202418609U (en) | 2011-12-29 | 2011-12-29 | Guiding and sealing valve for valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418609U true CN202418609U (en) | 2012-09-05 |
Family
ID=46743379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120563624 Expired - Fee Related CN202418609U (en) | 2011-12-29 | 2011-12-29 | Guiding and sealing valve for valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418609U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994235A (en) * | 2014-05-29 | 2014-08-20 | 超达阀门集团股份有限公司 | Erosive wear resisting angle-type valve |
| CN105202236A (en) * | 2015-09-30 | 2015-12-30 | 沈阳工业大学通益科技有限公司 | High-temperature electric submersible pump safety valve |
| CN109681650A (en) * | 2019-01-17 | 2019-04-26 | 宣达实业集团有限公司 | High oil field water injection steam injection manual shutoff regulating valve |
| CN110805697A (en) * | 2019-11-26 | 2020-02-18 | 上海发电设备成套设计研究院有限责任公司 | Integral self-protection sealing surface structure of regulating valve |
-
2011
- 2011-12-29 CN CN 201120563624 patent/CN202418609U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994235A (en) * | 2014-05-29 | 2014-08-20 | 超达阀门集团股份有限公司 | Erosive wear resisting angle-type valve |
| CN105202236A (en) * | 2015-09-30 | 2015-12-30 | 沈阳工业大学通益科技有限公司 | High-temperature electric submersible pump safety valve |
| CN105202236B (en) * | 2015-09-30 | 2018-04-24 | 中国石油辽河油田曙光采油厂 | High-temperature submersible electric pump safety valve |
| CN109681650A (en) * | 2019-01-17 | 2019-04-26 | 宣达实业集团有限公司 | High oil field water injection steam injection manual shutoff regulating valve |
| CN110805697A (en) * | 2019-11-26 | 2020-02-18 | 上海发电设备成套设计研究院有限责任公司 | Integral self-protection sealing surface structure of regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 215000 Suzhou Lake Industrial Park, Xiangcheng District Economic Development Zone, Jiangsu Patentee after: SUZHOU DELAN ENERGY SCIENCE & TECHNOLOGY CORP., LTD. Address before: Cao Hu Industrial Park of Xiangcheng Economic Development Zone, Suzhou City, Jiangsu province 215000 Patentee before: Suzhou Delan Energy Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20141229 |
|
| EXPY | Termination of patent right or utility model |