CN207005330U - A kind of surge reliever sealing structure - Google Patents
A kind of surge reliever sealing structure Download PDFInfo
- Publication number
- CN207005330U CN207005330U CN201720630123.2U CN201720630123U CN207005330U CN 207005330 U CN207005330 U CN 207005330U CN 201720630123 U CN201720630123 U CN 201720630123U CN 207005330 U CN207005330 U CN 207005330U
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- Prior art keywords
- seal
- ring
- surge reliever
- sealing
- flap
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Abstract
It the utility model is related to valve design field, specifically disclose a kind of surge reliever sealing structure, including sealing block, O-ring I, fixed cover, O-ring II, briquetting and holding screw, seal groove and dovetail groove are provided with the flap of surge reliever, screwed hole is equidistantly opened up respectively on flap and briquetting, holding screw is located in screwed hole, O-ring I is fixed in seal groove by briquetting, O-ring I forms axial seal with fixed cover, primary seal as surge reliever, sealing block is in dovetail groove, sealing block forms the auxiliary seal of surge reliever with fixed cover.The utility model has primary seal and auxiliary seal double sealing structure; auxiliary seal bears the media impingement that flap is brought when valve opening is with closing; sealing block or sealing ring can effectively be protected; it can ensure that pipeline internal medium will not leak when valve is closed simultaneously, can apply to viscosity height, the feed-line containing solid particle medium.
Description
Technical field
The utility model belongs to valve design field, and in particular to a kind of surge reliever sealing structure.
Background technology
Water attack protection generally is carried out to conveyance conduit using surge reliever in pipeline system, avoided by threshold switch
Too fast, the unexpected start and stop of pump and wiper such as block at the water hammer caused by situation suddenly, reduce pipeline and yard as far as possible
Equipment damage.
At present, the surge reliever used both at home and abroad, before opening be required for after closing ensure valve do not leak, its master is close
Envelope is typically made up of flap, sealing block or sealing ring, fixed cover.But during being opened and closed due to valve, the action of flap
Impact can be brought to sealing block or sealing ring, often can cause necessarily to damage after action, cause seal failure, valve leak；Together
When, solid impurity is there may be in pipeline internal medium, the welding slag in pipeline is stayed in such as silt, stone or installation process, when
During opening and closing, solid impurity washes away sealing block or sealing ring with pipeline internal medium and directly it is caused damage valve,
Cause seal failure, valve leak.
Yet there are no so far it is relevant can solve flap action impact is brought to sealing structure, can effectively protect sealing block or
Sealing ring, and can ensure the surge reliever sealing structure of sealing property in medium pipeline of the conveying containing solid impurity.
The content of the invention
The purpose of this utility model is to provide a kind of surge reliever sealing structure, can effectively protect sealing block, ensure
Sealing property.
The technical solution of the utility model is as follows：
A kind of surge reliever sealing structure, the sealing protection for surge reliever, it is characterised in that：Including sealing
Block, O-ring I, fixed cover, O-ring II, briquetting and holding screw；
Seal groove and dovetail groove are provided with the flap of surge reliever；
Equidistantly open up screwed hole respectively on flap and briquetting, holding screw is located in screwed hole, passes through holding screw
Briquetting is fixed on flap；
Described O-ring I is fixed in seal groove by briquetting, and O-ring I forms axial seal with fixed cover, as
The primary seal of surge reliever；
For described sealing block in dovetail groove, sealing block forms the auxiliary seal of surge reliever with fixed cover.
Described fixed cover is drum, and one end is provided with platform in lateral surface, is fixedly connected by screw with valve seat, separately
One end is provided with chamfering in madial wall, for fixing seal block and O-ring I.
Described seal groove has P, P >=1.
Described dovetail groove has Q, Q >=1.
Described O-ring I has P, and sealing block has Q.
Described screwed hole has N number of, 6≤N≤10, N number of screwed hole on flap and a pair of N number of screwed hole 1 on briquetting
Should.
Described holding screw has N number of.
Sealing block on auxiliary seal contacts with fixed cover in valve opening and closing, bears the impact that flap is brought,
There is auxiliary seal effect when valve is closed simultaneously.
The beneficial effects of the utility model are：
(1) the application has primary seal and auxiliary seal double sealing structure, and auxiliary seal is when valve opening is with closing
The media impingement that flap is brought is born, can effectively protect sealing block or sealing ring；
(2) the application device can ensure that pipeline internal medium will not leak when valve is closed, in conveying containing solid
Ensure sealing property in the medium pipeline of body impurity, can apply to viscosity height, the feed-line containing solid particle medium.
Brief description of the drawings
Fig. 1 is a kind of surge reliever sealed structural representation；
Fig. 2 is Fig. 1 close-up schematic views；
Fig. 3 is flap schematic diagram.
In figure：1. flap；2. sealing block；3.O type circles I；4. fixed cover；5.O type circles II；6. briquetting；7. holding screw；1-
1. seal groove；1-2. dovetail groove.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to the utility model.
A kind of surge reliever sealing structure as Figure 1-3, for the sealing protection of surge reliever, including sealing
Block 2, O-ring I3, fixed cover 4, O-ring II5, briquetting 6 and holding screw 7.
Seal groove 1-1 and dovetail groove 1-2, described seal groove 1-1 are provided with the flap 1 of surge reliever P, P
>=1, dovetail groove 1-2 have Q, Q >=1.N number of screwed hole, 6≤N≤10, flap are equidistantly opened up respectively on flap 1 and briquetting 6
N number of screwed hole on 1 corresponds with N number of screwed hole on briquetting 6.N number of holding screw 7 is located in N number of screwed hole, by tight
Determine screw 7 briquetting 6 is fixed on flap 1.Described O-ring I3 is fixed in seal groove 1-1 by briquetting 6, O-ring I3
Axial seal, the primary seal as surge reliever are formed with fixed cover 4.
Described fixed cover 4 is drum, and one end is provided with platform in lateral surface, is fixedly connected by screw with valve seat,
The other end is provided with chamfering in madial wall, for fixing seal block 2 and O-ring I3.
The material of described sealing block 2 is corrosion-resistant nonmetallic, such as polytetrafluoroethylene (PTFE).Sealing block 2 is located at dovetail groove 1-2
Interior, sealing block 2 forms the auxiliary seal of surge reliever with fixed cover 4.
When valve opening and closing, primary seal is not subject to the impact that the action process of flap 1 is brought.It is close on auxiliary seal
Envelope block 2 contacts with fixed cover 4 in valve opening and closing, bears the impact that flap 1 is brought, while have when valve is closed
Auxiliary seal acts on.
Primary seal is sealed compared to traditional surge reliever and washed away by solid impurity during valve opening or closing
Influence smaller.The primary seal and auxiliary seal common guarantee pipeline internal medium of surge reliever sealing structure of the present utility model exist
Valve will not leak when closing.
Claims (8)
1. a kind of surge reliever sealing structure, the sealing protection for surge reliever, it is characterised in that：Including sealing block
(2), O-ring I (3), fixed cover (4), O-ring II (5), briquetting (6) and holding screw (7)；
Seal groove (1-1) and dovetail groove (1-2) are provided with the flap (1) of surge reliever；
Equidistantly open up screwed hole respectively on flap (1) and briquetting (6), holding screw (7) is located in screwed hole, passes through tightening
Briquetting (6) is fixed on flap (1) by screw (7)；
Described O-ring I (3) is fixed in seal groove (1-1) by briquetting (6), O-ring I (3) and fixed cover (4) formation
Axial seal, the primary seal as surge reliever；
For described sealing block (2) in dovetail groove (1-2), sealing block (2) forms the auxiliary of surge reliever with fixed cover (4)
Sealing.
A kind of 2. surge reliever sealing structure as claimed in claim 1, it is characterised in that：Described screwed hole have it is N number of, 6
≤ N≤10, N number of screwed hole on flap (1) correspond with N number of screwed hole on briquetting (6).
A kind of 3. surge reliever sealing structure as claimed in claim 2, it is characterised in that：Described holding screw (7) has N
It is individual.
A kind of 4. surge reliever sealing structure as claimed in claim 1, it is characterised in that：Described fixed cover (4) is circle
Barrel shape, one end are provided with platform in lateral surface, are fixedly connected by screw with valve seat, and the other end is provided with chamfering in madial wall, use
In fixing seal block (2) and O-ring I (3).
A kind of 5. surge reliever sealing structure as claimed in claim 4, it is characterised in that：Described seal groove (1-1) has P
It is individual, P >=1.
A kind of 6. surge reliever sealing structure as claimed in claim 5, it is characterised in that：Described dovetail groove (1-2) has Q
It is individual, Q >=1.
A kind of 7. surge reliever sealing structure as claimed in claim 6, it is characterised in that：Described O-ring I (3) has P
Individual, sealing block (2) has Q.
A kind of 8. surge reliever sealing structure as claimed in claim 1, it is characterised in that：Sealing block on auxiliary seal
(2) contacted with fixed cover (4) in valve opening and closing, bear the impact that flap (1) is brought, while have when valve is closed
There is auxiliary seal effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720630123.2U CN207005330U (en) | 2017-06-02 | 2017-06-02 | A kind of surge reliever sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720630123.2U CN207005330U (en) | 2017-06-02 | 2017-06-02 | A kind of surge reliever sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207005330U true CN207005330U (en) | 2018-02-13 |
Family
ID=61446007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720630123.2U Active CN207005330U (en) | 2017-06-02 | 2017-06-02 | A kind of surge reliever sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207005330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218405A (en) * | 2017-06-02 | 2017-09-29 | 北京航天石化技术装备工程有限公司 | A kind of surge reliever sealing structure |
-
2017
- 2017-06-02 CN CN201720630123.2U patent/CN207005330U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218405A (en) * | 2017-06-02 | 2017-09-29 | 北京航天石化技术装备工程有限公司 | A kind of surge reliever sealing structure |
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