CN206338431U - A kind of expansion sluice valve - Google Patents
A kind of expansion sluice valve Download PDFInfo
- Publication number
- CN206338431U CN206338431U CN201621297067.7U CN201621297067U CN206338431U CN 206338431 U CN206338431 U CN 206338431U CN 201621297067 U CN201621297067 U CN 201621297067U CN 206338431 U CN206338431 U CN 206338431U
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- CN
- China
- Prior art keywords
- valve
- rod
- valve body
- plate
- seat
- 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 is related to field of petroleum machinery, specifically a kind of expansion sluice valve；Including valve body, valve plate, valve seat, valve rod, wherein, valve plate, valve seat and valve rod are arranged in valve body, make to relatively rotate between valve plate and valve seat by rotation valve rod, so that the purpose of open-close valve is reached, it is characterized in that：There is tungsten carbide soil layer on the surface of valve plate and valve seat, set PEEK to enclose between valve body and valve seat, the longitudinally disposed three seal structures between valve rod and valve body.This gate valve uses above-mentioned design, in valve plate and valve base surface sprayed wc, increases PEEK circles between valve seat and valve body.Reach the purpose of increase counterweight service life.Meanwhile, the seal form between valve rod and valve body is combined using accumulation of energy circle, metal spacer ring and V-shaped seal ring, is thusly-formed three seals, is prevented the problem of sealing structure easily fails.
Description
Technical field
The utility model is related to field of petroleum machinery, specifically a kind of expansion sluice valve.
Background technology
The expansion sluice valve of ordinary construction, it is impossible to meet airtight requirement, its sealing property is unable to reach PR2 standard.And
Under containing husky operating mode, the expansion sluice valve service life of ordinary construction is also short, is unfavorable for working continuously for overall oil equipment.
The content of the invention
The purpose of this utility model is that there is provided the good expansion sluice valve of a kind of long service life, airtight effect.
In order to achieve the above object, the utility model is realized in：
A kind of expansion sluice valve, including valve body, valve plate, valve seat, valve rod, wherein, valve plate, valve seat and valve rod are arranged at valve body
It is interior, make to relatively rotate between valve plate and valve seat by rotation valve rod, so as to reach the purpose of open-close valve, in valve plate and valve seat
Surface has tungsten carbide soil layer, sets PEEK to enclose between valve body and valve seat, longitudinally disposed three road is close between valve rod and valve body
Seal structure.
Described expansion sluice valve, the three seal structures being arranged between valve rod and valve body include V-type successively from top to bottom
Ring structure, accumulation of energy coil structures and metal spacing ring structure of leather；Wherein, v-ring structure and accumulation of energy coil structures are packing knots
Structure coordinates packing gland to realize.Wherein, it is marked with sealant between v-ring structure and accumulation of energy circle sealing structure.
This gate valve uses above-mentioned design, in valve plate and valve base surface sprayed wc, increases PEEK between valve seat and valve body
Circle.Reach the purpose of increase counterweight service life.Meanwhile, seal form between valve rod and valve body using accumulation of energy circle, metal every
Ring and V-shaped seal ring are combined, and are thusly-formed three seals, prevent the problem of sealing structure easily fails.
Brief description of the drawings
Fig. 1 is this gate valve structure schematic diagram.
Embodiment
The utility model is further illustrated below by way of specific embodiment.
A kind of expansion sluice valve, including valve body 1, valve plate 2, valve seat 3, valve rod 4, wherein, valve plate 2, valve seat 3 and valve rod 4 are all provided with
Put in valve body 1, make to relatively rotate between valve plate 2 and valve seat 3 by rotation valve rod 4, so that the purpose of open-close valve 1 is reached,
There is tungsten carbide soil layer on the surface of valve plate 2 and valve seat 3, set PEEK to enclose 5 between valve body 1 and valve seat 3, in valve rod 4 and valve
Longitudinally disposed three seal structures between body 1.
Described expansion sluice valve, the three seal structures being arranged between valve rod 4 and valve body 1 include V successively from top to bottom
Type ring structure 6, accumulation of energy coil structures 7 and metal spacing ring structure of leather 8；Wherein, v-ring structure 6 and accumulation of energy coil structures 7 are
Packing respective outer side edges packing gland is realized.
This gate valve uses above-mentioned design, in valve plate and valve base surface sprayed wc, increases PEEK between valve seat and valve body
Circle, reaches the purpose of increase counterweight service life.Meanwhile, seal form between valve rod and valve body using accumulation of energy circle, metal every
Ring and V-shaped seal ring are combined, and the purpose being so designed that is：After medium enters valve, by accumulation of energy circle to above valve rod
Top, struts lip formula accumulation of energy coil structures, so as to form first order sealing；Pressure passes to V-shaped seal ring knot by metal spacer ring
Structure, makes the lip of V-shaped seal ring structure open to form second level sealing.Once when first order seal failure, the second level is sealed just
It can play a role.After two-stage sealing all failures, also valve rod sealant can be injected by grease pouring valve, form third level sealing.
Claims (3)
1. a kind of expansion sluice valve, including valve body, valve plate, valve seat, valve rod, wherein, valve plate, valve seat and valve rod are arranged at valve body
It is interior, make to relatively rotate between valve plate and valve seat by rotation valve rod, so that the purpose of open-close valve is reached, it is characterized in that：In valve
The surface of plate and valve seat has tungsten carbide soil layer, sets PEEK to enclose between valve body and valve seat, the longitudinal direction between valve rod and valve body
Three seal structures are set.
2. expansion sluice valve according to claim 1, it is characterized in that：It is arranged on the three seal structures between valve rod and valve body
Include V-shaped seal ring structure, accumulation of energy coil structures and metal spacing ring structure of leather successively from top to bottom；Wherein, v-ring structure and storage
Energy coil structures are that packing respective outer side edges packing gland is realized.
3. expansion sluice valve according to claim 2, it is characterized in that：V-ring structure and accumulation of energy circle sealing structure it
Between be marked with sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621297067.7U CN206338431U (en) | 2016-11-30 | 2016-11-30 | A kind of expansion sluice valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621297067.7U CN206338431U (en) | 2016-11-30 | 2016-11-30 | A kind of expansion sluice valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206338431U true CN206338431U (en) | 2017-07-18 |
Family
ID=59307891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621297067.7U Expired - Fee Related CN206338431U (en) | 2016-11-30 | 2016-11-30 | A kind of expansion sluice valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206338431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481831A (en) * | 2016-11-30 | 2017-03-08 | 上海新莲泵阀有限公司 | A kind of expansion sluice valve |
-
2016
- 2016-11-30 CN CN201621297067.7U patent/CN206338431U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481831A (en) * | 2016-11-30 | 2017-03-08 | 上海新莲泵阀有限公司 | A kind of expansion sluice valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170718 Termination date: 20201130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |