CN205534222U - Vertical shaft water turbine overhauls sealing device - Google Patents
Vertical shaft water turbine overhauls sealing device Download PDFInfo
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- CN205534222U CN205534222U CN201620209872.3U CN201620209872U CN205534222U CN 205534222 U CN205534222 U CN 205534222U CN 201620209872 U CN201620209872 U CN 201620209872U CN 205534222 U CN205534222 U CN 205534222U
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Abstract
The utility model provides a vertical shaft water turbine overhauls sealing device, it includes retainer plate, the setting is at the sealing base of retainer plate below, retainer plate and sealing base combine together the back at cavity of middle part formation, one side to opposite side from the cavity is equipped with the sealed shrcud ring of abnormal shape in proper order, and seal the sealed shrcud ring of O type of shrcud ring afterbody contact with the abnormal shape, the sealed shrcud ring other end of O type is equipped with the air cock, compressed air can let in, the air cock is equipped with the sealing washer with sealing base 's cooperation position, it is equipped with the stopper to correspond with the air cock, the stopper plays sealed effect to the air chamber, the sealed shrcud ring of abnormal shape includes preceding sealed end and X -shaped afterbody, and the arc afterbody supports tight contact with retainer plate and sealing base. The utility model discloses the not good and sealed shrcud ring bulk strength of sealed effect that can solve the current sealing device's of maintenance sealed shrcud ring is lower, easy ruptured problem.
Description
Technical field
This utility model belongs to water generating apparatus field, is specifically related to a kind of vertical shaft water turbine maintenance sealing device.
Background technology
When vertical shaft turbine-generator units carries out maintenance down in the case of not draining; need to put into maintenance to seal; as shown in Figure 3; existing maintenance sealing device mainly includes sealing clamp 9, sealed base 10, seals shroud 11, assembly such as plug 13 etc., when overhauling sealing device and putting into, by blowdown pipe, compressed air is filled with sealing shroud; shroud is close to runner crown 12 after expanding and water seal is lived; when overhauling sealing device and withdrawing from, shroud aerofluxus is shunk, is separated with runner crown.
Prior art is primarily present two problems, and first, when shroud withdraws from aerofluxus, amount of recovery is little, after unit start, before runner easy grazing shroud before seal face, and shroud seal face due to wall thickness relatively thin, there is the risk ruptured to a certain extent；Secondly, square shroud swell increment when gas-flow closure is little, serious with the sealing clamp of shroud upper and lower side plane contact and the corrosion in water of sealed base metal surface long period of soaking, and the sealing effectiveness between shroud upper and lower end face and sealing clamp and sealed base is the best.
Summary of the invention
Technical problem to be solved in the utility model is for above-mentioned the deficiencies in the prior art, and a kind of vertical shaft water turbine maintenance sealing device provided, it can solve existing maintenance sealing device seal shroud sealing effectiveness the best and seal shroud bulk strength relatively low, crackly problem.
The purpose of utility model is achieved in that
A kind of vertical shaft water turbine maintenance sealing device, it includes sealing clamp, is arranged on the sealed base below sealing clamp, sealing clamp and sealed base combine after middle part formed a chamber, it is sequentially provided with X-type seal shroud from the side of chamber to opposite side and seal the O type sealing shroud that shroud afterbody contacts with X-type, O type seals the shroud other end and is provided with valve, compressed air can be passed through, valve is provided with sealing ring with the matching part of sealed base, being correspondingly provided with plug with valve, air chamber is sealed by plug；X-type seals shroud and includes front sealed end and X-shaped afterbody, and arc afterbody pushes against with sealing clamp and sealed base and contacts.
Above-mentioned front sealed end and arc afterbody are solid rubber body.
Above-mentioned X-type seals shroud and includes an X-shaped afterbody, and X-type is sealed shroud and contacted with O type sealing shroud by this X-shaped afterbody.
Above-mentioned sealing ring is O RunddichtringO.
This utility model can bring techniques below effect:
Using said structure, when make use of O type shroud to inflate, dilatancy is good, the feature that during aerofluxus, contractility is good.When inflation, owing to dilatancy is good, the sealing between O type shroud upper and lower side and sealing clamp and sealed base is better than square shroud, and simultaneously relatively big to the X-type caulking gum amount of laterally urging, water sealing effect is preferable.During aerofluxus, O type shroud amount of recovery is the biggest, it is to avoid X-type shroud and runner grazing；
In addition, X-type shroud entirety uses solid rubber body structure, there is not the danger ruptured, upon wear, also can feed compensation in real time, also allows for changing.When O type shroud inflation, X-type seals shroud X-shaped afterbody and can be fully extended, and contacts with pushing against between sealing clamp and sealed base, seals well.X-type seals shroud X-shaped afterbody and stores decrement after O type shroud inflation, when O type shroud aerofluxus bounce back, it is provided that bigger resilience force, helps X-type rubber to bounce back to home position fully, it is to avoid when runner rotates and the grazing of shroud.
Accompanying drawing explanation
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation that in Fig. 1, X-type seals shroud；
Fig. 3 is the structural representation of prior art in background technology.
Detailed description of the invention
Vertical shaft water turbine maintenance sealing device as shown in Figure 1, it includes sealing clamp 1, is arranged on the sealed base 2 below sealing clamp 1, sealing clamp 1 and sealed base 2 combine after middle part formed a chamber 7, it is sequentially provided with X-type seal shroud 3 from the side of chamber 7 to opposite side and seal the O type sealing shroud 4 that shroud 3 afterbody contacts with X-type, O type seals shroud 4 other end and is provided with valve 5, compressed air can be passed through, valve 5 is provided with sealing ring 6 with the matching part of sealed base 2, being correspondingly provided with plug with valve, air chamber is sealed by plug 8；
As in figure 2 it is shown, X-type seals shroud 3 includes that front sealed end 301 and X-shaped afterbody 302, X-shaped afterbody 302 push against contact with sealing clamp 1 and sealed base 2.
Described front sealed end 301 and X-shaped afterbody 302 are solid rubber body.
Described X-type seals shroud 3 and includes an X-shaped afterbody, and X-type is sealed shroud and contacted with O type sealing shroud 4 by this X-shaped afterbody.
Described sealing ring 6 is O RunddichtringO.
Using said structure, during use, when make use of O type shroud to inflate, dilatancy is good, the feature that during aerofluxus, contractility is good.When inflation, owing to dilatancy is good, the sealing between O type shroud upper and lower side and sealing clamp and sealed base is better than square shroud, and simultaneously relatively big to the X-type caulking gum amount of laterally urging, water sealing effect is preferable.During aerofluxus, O type shroud amount of recovery is the biggest, it is to avoid X-type shroud and runner grazing；
In addition, X-type shroud entirety uses solid rubber body structure, there is not the danger ruptured, upon wear, also can feed compensation in real time, also allows for changing.When O type shroud inflation, X-type seals shroud X-shaped afterbody and can be fully extended, and contacts with pushing against between sealing clamp and sealed base, seals well.X-type seals shroud X-shaped afterbody and stores decrement after O type shroud inflation, when O type shroud aerofluxus bounce back, it is provided that bigger resilience force, helps X-type to seal shroud and bounces back to home position fully, it is to avoid when runner rotates and the grazing of shroud.
Claims (4)
1. a vertical shaft water turbine maintenance sealing device, it is characterized in that: it includes sealing clamp (1), it is arranged on the sealed base (2) of sealing clamp (1) lower section, sealing clamp (1) and sealed base (2) combine after middle part formed a chamber (7), it is sequentially provided with X-type from side to the opposite side of chamber (7) and seals shroud (3), and O type sealing shroud (4) that shroud (3) afterbody contacts is sealed with X-type, O type seals shroud (4) other end and is provided with valve (5), valve (5) is provided with sealing ring (6) with the matching part of sealed base (2), it is correspondingly provided with plug with valve, air chamber is sealed by plug (8)；X-type seals shroud (3) and includes that front sealed end (301) and X-shaped afterbody (302), X-shaped afterbody (302) push against contact with sealing clamp (1) and sealed base (2).
A kind of vertical shaft water turbine maintenance sealing device the most according to claim 1, it is characterised in that: described front sealed end (301) and X-shaped afterbody (302) they are solid rubber body.
A kind of vertical shaft water turbine maintenance sealing device the most according to claim 1, it is characterised in that: described X-type seals shroud (3) and includes an X-shaped afterbody, and X-type is sealed shroud and contacted with O type sealing shroud (4) by this X-shaped afterbody.
A kind of vertical shaft water turbine maintenance sealing device the most according to claim 1, it is characterised in that: described sealing ring (6) is O RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620209872.3U CN205534222U (en) | 2016-03-18 | 2016-03-18 | Vertical shaft water turbine overhauls sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620209872.3U CN205534222U (en) | 2016-03-18 | 2016-03-18 | Vertical shaft water turbine overhauls sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205534222U true CN205534222U (en) | 2016-08-31 |
Family
ID=56783126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620209872.3U Active CN205534222U (en) | 2016-03-18 | 2016-03-18 | Vertical shaft water turbine overhauls sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205534222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246910A (en) * | 2016-09-29 | 2016-12-21 | 武汉科技大学 | A kind of internal adjustable dense seal injecting grease |
-
2016
- 2016-03-18 CN CN201620209872.3U patent/CN205534222U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246910A (en) * | 2016-09-29 | 2016-12-21 | 武汉科技大学 | A kind of internal adjustable dense seal injecting grease |
| CN106246910B (en) * | 2016-09-29 | 2017-10-24 | 武汉科技大学 | A kind of adjustable dense seal of internal injection lubricating grease |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xu Bo Inventor after: Zhang Yaqi Inventor after: Cheng Jian Inventor after: Xu Yaling Inventor after: Tang Zhengyang Inventor after: Fu Daidi Inventor after: Peng Bing Inventor before: Xu Bo Inventor before: Zhang Yaqi Inventor before: Cheng Jian Inventor before: Xu Ge Inventor before: Cao Changchong Inventor before: Fu Daidi Inventor before: Wang Jianlan |
|
| COR | Change of bibliographic data |