CN204592459U - A kind of gravity ball-type vacuum breaker valve - Google Patents
A kind of gravity ball-type vacuum breaker valve Download PDFInfo
- Publication number
- CN204592459U CN204592459U CN201520192007.8U CN201520192007U CN204592459U CN 204592459 U CN204592459 U CN 204592459U CN 201520192007 U CN201520192007 U CN 201520192007U CN 204592459 U CN204592459 U CN 204592459U
- Authority
- CN
- China
- Prior art keywords
- valve
- gravitation ball
- valve seat
- vacuum breaker
- ball
- 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 relates to a kind of vacuum breaking aeration valve, the vacuum breaker valve particularly relate to a kind of automatic unlatching, utilizing gravitation ball automatically to close, comprise valve seat, valve seal, gravitation ball and valve bonnet, described valve seat is arranged on water turbine support cover, valve seat top is provided with suction port, described valve seal is arranged on suction port, described gravitation ball is placed on valve seal, the diameter of described gravitation ball is greater than the bore of suction port, described valve seat exocoel is communicated with vacuum pressure chamber, forms atmospheric pressure chamber between described valve base cavity and gravitation ball.The beneficial effects of the utility model are, vacuum breaker valve can open the need of tonifying Qi according to unit or cut out, and can adapt to generator operation as synchronous condenser by unit, without easily worn part, safe and reliable.
Description
Technical field
The utility model relates to a kind of vacuum breaking aeration valve, the vacuum breaker valve particularly relate to a kind of automatic unlatching, utilizing gravitation ball automatically to close.
Background technique
The vacuum breaker valve that current mixed-flow wheel machine cap and axial-flow water-turbine top cover, support cover are installed mostly is spring valve or float valve.Spring valve is due to spring unstable properties and action component is more, and thus rate of fault is higher.Float valve can not initiatively be closed in time when unit vacuum expendable pattern does not need tonifying Qi, only have and could close when the water surface floods a part of spheroid, now distance valve port is very near for the water surface, easily overflowed by the sealing water capacity, during generator operation as synchronous condenser, ball float is in air and can not floats and cannot seal valve port, and thus float valve can not adapt to unit generator operation as synchronous condenser.
Model utility content
In order to overcome current spring valve spring unstable properties, the more rate of fault of action component is high; Float valve can not open and close in time according to degree of vacuum, be not suitable with the shortcoming of unit generator operation as synchronous condenser, and the utility model provides a kind ofly can adapt to unit generator operation as synchronous condenser, can open and close in time according to unit degree of vacuum, aeration valve that non-spring structure, moving element are little.Improve the Security of unit operation.
The utility model solves the technological scheme that its technical problem adopts: a kind of gravity ball-type vacuum breaker valve, comprise valve seat, valve seal, gravitation ball and valve bonnet, described valve seat is arranged on water turbine support cover, valve seat top is provided with suction port, described valve seal is arranged on suction port, and described gravitation ball is placed on valve seal, and the diameter of described gravitation ball is greater than the bore of suction port, described valve seat exocoel is communicated with vacuum pressure chamber, forms atmospheric pressure chamber between described valve base cavity and gravitation ball.
It is inner that vacuum pressure chamber is communicated with unit.
Preferably, described valve bonnet inwall is provided with guide rib, and the internal diameter of described guide rib and the diameter of gravitation ball match.
This kind of structure can prevent the skew of gravitation ball, makes its use more reliable and more stable.
Preferably, described valve bonnet and valve seat joint are provided with adpting flange.
This kind of structure makes valve seal, gravitation ball installation and maintenance more convenient.
The utility model is arranged on water-turbine top cover or support cover, when unit needs tonifying Qi, vacuum is there is in cavity with on the upside of the valve seal of unit flow passage, when vacuum values reaches setting value, gravitation ball rises under the barometric pressure effect of valve seal (valve seal in the utility model) downside, vacuum breaker valve is opened as unit tonifying Qi, can close immediately under gravity once vacuum is destroyed gravitation ball, avoid water level to rise in valve, when the pressure increase under unit top cover or support cover exceedes barometric pressure, valve port will be closed more reliable by gravitation ball under this pressure.
The beneficial effects of the utility model are, vacuum breaker valve can open the need of tonifying Qi according to unit or cut out, and can adapt to generator operation as synchronous condenser by unit, without easily worn part, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the utility model vacuum breaker valve structural representation;
Fig. 2 is the utility model vacuum breaker valve closed condition schematic diagram;
In Fig. 1: 1. valve seat, 2. valve seal, 3. gravitation ball, 4. valve bonnet, 5. guide rib, 6. air outlet, 7. adpting flange, 8. water turbine support cover, A. vacuum pressure chamber, B. atmospheric pressure chamber.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, but is not the restriction to the utility model protection domain.
As illustrated in fig. 1 and 2, a kind of gravity ball-type vacuum breaker valve, comprise valve seat 1, valve seal 2, gravitation ball 3 and valve bonnet 4, valve seat 1 is arranged on water turbine support cover 8, and valve seat 1 top is provided with suction port 6, and valve seal 2 is arranged on suction port 6, gravitation ball 3 is placed on valve seal 2, the diameter of gravitation ball 3 is greater than the bore of suction port 6, is vacuum pressure chamber A, forms atmospheric pressure chamber B between valve seat 1 and gravitation ball 3 below valve seat 1.Valve bonnet 4 inwall is provided with guide rib 5, and the internal diameter of guide rib 5 and the diameter of gravitation ball 3 match.Valve bonnet 4 and valve seat 1 joint are provided with adpting flange 7.
The utility model Fig. 1 represents vacuum breaker valve opening state, and in figure, arrow shows air flow path.
When in figure, vacuum pressure chamber A degree of vacuum reaches setting value, pressure difference in atmospheric pressure in atmospheric pressure chamber B and vacuum pressure chamber A is greater than the self gravitation of gravitation ball 3, now, gravitation ball 3 moves up and leaves valve seal 2 under the effect of atmospheric pressure chamber B barometric pressure, vacuum breaker valve is opened, and air carries out tonifying Qi along route shown by arrows in figure to unit.
The utility model Figure 2 shows that state is vacuum breaker valve closed condition, when now vacuum pressure chamber A vacuum values does not reach setting value, pressure difference in atmospheric pressure in atmospheric pressure chamber B and vacuum pressure chamber A is less than the self gravitation of gravitation ball 3, gravitation ball 3 is fitted with valve seal 2 under gravity all the time, and aeration valve is in closed condition.
The beneficial effects of the utility model are, vacuum breaker valve can open the need of tonifying Qi according to unit or cut out, and can adapt to generator operation as synchronous condenser by unit, without easily worn part, safe and reliable.
Claims (3)
1. a gravity ball-type vacuum breaker valve, it is characterized in that: it comprises valve seat, valve seal, gravitation ball and valve bonnet, described valve seat is arranged on water turbine support cover, valve seat top is provided with suction port, described valve seal is arranged on suction port, and described gravitation ball is placed on valve seal, and the diameter of described gravitation ball is greater than the bore of air outlet, described valve seat exocoel is communicated with vacuum pressure chamber, forms atmospheric pressure chamber between described valve base cavity and gravitation ball.
2. a kind of gravity ball-type vacuum breaker valve according to claim 1, it is characterized in that: described valve bonnet inwall is provided with guide rib, the internal diameter of described guide rib and the diameter of gravitation ball match.
3. a kind of gravity ball-type vacuum breaker valve according to claim 1, is characterized in that: described valve bonnet and valve seat joint are provided with adpting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520192007.8U CN204592459U (en) | 2015-04-01 | 2015-04-01 | A kind of gravity ball-type vacuum breaker valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520192007.8U CN204592459U (en) | 2015-04-01 | 2015-04-01 | A kind of gravity ball-type vacuum breaker valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204592459U true CN204592459U (en) | 2015-08-26 |
Family
ID=53928611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520192007.8U Expired - Fee Related CN204592459U (en) | 2015-04-01 | 2015-04-01 | A kind of gravity ball-type vacuum breaker valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204592459U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758043A (en) * | 2018-08-20 | 2018-11-06 | 李文博 | A kind of Novel breather valve |
-
2015
- 2015-04-01 CN CN201520192007.8U patent/CN204592459U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758043A (en) * | 2018-08-20 | 2018-11-06 | 李文博 | A kind of Novel breather valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 |