CN100491718C - automatic air compensating central hole device of water turbine - Google Patents
automatic air compensating central hole device of water turbine Download PDFInfo
- Publication number
- CN100491718C CN100491718C CNB031375308A CN03137530A CN100491718C CN 100491718 C CN100491718 C CN 100491718C CN B031375308 A CNB031375308 A CN B031375308A CN 03137530 A CN03137530 A CN 03137530A CN 100491718 C CN100491718 C CN 100491718C
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- CN
- China
- Prior art keywords
- float
- air supply
- way valve
- ball
- water
- 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 - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Float Valves (AREA)
Abstract
The present invention belongs to the field of water turbine air compensating technology, and is especially one automatic air compensating central hole device for water turbine. The automatic air compensating central hole device utilizes the buoyancy of water to prevent water return in the air compensating pipe, and consists of mainly buoyancy type non-return valve and air compensating passage connected together. The buoyancy type non-return valve has the admittance direction the same as the air compensating direction, and has free float inside the valve cavity. The present invention has the main advantages of no jamming of the float, high reliability, no guide rod and simple structure.
Description
(1) technical field
The invention belongs to water turbine center hole tonifying Qi technical field, be specifically related to a kind of water turbine center hole automatic air supply device, particularly relate to a kind of water turbine center hole automatic air supply device that utilizes buoyancy of water to prevent the air supply passage backwater.
(2) background technique
For the water turbine that is provided with the center hole making-up air device, automatic air supply device is not only wanted can be automatically, tonifying Qi stably, also wants to prevent backwater automatically.Existing anti-backwater technology mainly is the float-ball type one-way valve that serial connection has guide rod on air supply passage, and its deficiency is the easy hair fastener of ball float.
(3) summary of the invention
The objective of the invention is to: a kind of water turbine center hole automatic air supply device that utilizes buoyancy of water to prevent the air supply passage backwater is provided, and with existing technology ratio, its reliability is higher.
The solution of the present invention is: a kind of water turbine center hole automatic air supply device that utilizes buoyancy of water to prevent the air supply passage backwater, mainly comprise float-ball type one-way valve and air supply passage, the float-ball type one-way valve is serially connected on the air supply passage, the conducting direction of float-ball type one-way valve is consistent with the tonifying Qi direction, be placed with free floating ball in the valve pocket of float-ball type one-way valve, the sealing surface that the unlatching of float-ball type one-way valve is closed mouthful is the sphere that matches with free floating ball.With existing technology ratio,, there is not guide rod because ball float is a free floating ball, thereby there is not a restriction of guide rod yet, so be not easy hair fastener, so reliability is higher, sealing surface that unlatching is closed mouthful and free floating ball match and have then guaranteed the reliability of sealing.
Major advantage of the present invention is that ball float is difficult for hair fastener, the reliability height, and also owing to cancelled guide rod, its structure is simple relatively.
Influence anti-backwater effect in order to prevent the free floating ball corrosion, free floating ball is stainless steel material preferably.
For the wearing and tearing that alleviate free floating ball, improve its working life, the valve pocket inwall of float-ball type one-way valve can be provided with the flexible material layer, this flexible material layer can be a rubber material.
(4) description of drawings
Also in conjunction with the accompanying drawings the present invention is provided further instruction below by embodiment.
Fig. 1 is vertical cross-sectional schematic that the embodiment of the invention 1 is in the tonifying Qi state;
Fig. 2 is vertical cross-sectional schematic that the embodiment of the invention 1 is in the backwater state;
1. float-ball type one-way valves among the figure, 2. pressure type one-way valve, 3. air supply passage or blowdown pipe, 4. the valve pocket inwall of float-ball type one-way valve, the 5. sealing surface of the closed mouth of float-ball type one-way valve unlatching, 6. ball float, 7. elastometric lining.
(5) embodiment
Embodiment 1:
Shown in accompanying drawing 1, accompanying drawing 2, present embodiment mainly comprises float-ball type one-way valve 1, pressure type one-way valve 2 and blowdown pipe 3, and pressure type one-way valve 2 and float-ball type one-way valve 1 all are serially connected on the blowdown pipe 3, and pressure type one-way valve 2 is positioned at the top of float-ball type one-way valve 1.On the valve pocket inwall 4 of float-ball type one-way valve 1 and open on closed mouthful the sealing surface 5 and all be lined with one deck elastometric lining 7, a hollow free floating ball 6 of being made by stainless steel material is arranged in its valve pocket, sealing surface 5 is spheres and matches with free floating ball 6.When vacuum appears in the water wheels place, do not have water in the blowdown pipe, thereby float-ball type one-way valve 1 is conducting, pressure type one-way valve 2 also can be opened under the effect of inside and outside differential pressure, and the air in the atmosphere will be by blowdown pipe 3 to the tonifying Qi of water wheels place; When for a certain reason backwater taking place, the free floating ball 6 in the float-ball type one-way valve 1 will be sealed under buoyancy function and open closed mouthful, thereby prevents the backwater ejection.
In the present embodiment, also can include only float-ball type one-way valve 1 and blowdown pipe 3, free floating ball 6 also can be the hollow spheres of being made by the hard nylon material.
Claims (4)
1. water turbine center hole automatic air supply device that utilizes buoyancy of water to prevent the air supply passage backwater, mainly comprise float-ball type one-way valve (1) and air supply passage (3), float-ball type one-way valve (1) is serially connected on the air supply passage (3), the conducting direction of float-ball type one-way valve (1) is consistent with the tonifying Qi direction, has ball float (6) in the valve pocket of float-ball type one-way valve (1), it is characterized in that: this ball float (6) is a free floating ball, and the sealing surface (5) of the closed mouth of the unlatching of float-ball type one-way valve (1) is the sphere that matches with free floating ball (6).
2. the water turbine center hole automatic air supply device that utilizes buoyancy of water to prevent the air supply passage backwater according to claim 1, it is characterized in that: free floating ball (6) is a stainless steel material.
3. the water turbine center hole automatic air supply device that utilizes buoyancy of water to prevent the air supply passage backwater according to claim 1, it is characterized in that: the valve pocket inwall of float-ball type one-way valve (1) is provided with flexible material layer (7).
4. the water turbine center hole automatic air supply device that utilizes buoyancy of water to prevent the air supply passage backwater according to claim 3, it is characterized in that: described flexible material layer (7) is a rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031375308A CN100491718C (en) | 2003-06-07 | 2003-06-07 | automatic air compensating central hole device of water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031375308A CN100491718C (en) | 2003-06-07 | 2003-06-07 | automatic air compensating central hole device of water turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1458405A CN1458405A (en) | 2003-11-26 |
| CN100491718C true CN100491718C (en) | 2009-05-27 |
Family
ID=29430679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031375308A Expired - Lifetime CN100491718C (en) | 2003-06-07 | 2003-06-07 | automatic air compensating central hole device of water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100491718C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4215884A1 (en) | 2013-03-15 | 2023-07-26 | Mueller International, LLC | Systems for measuring properties of water in a water distribution system |
| CN104728022B (en) * | 2015-03-16 | 2017-03-08 | 中国长江电力股份有限公司 | The suspending apparatus of QI invigorating pipe end under a kind of fixing large hydropower station unit |
| US11041839B2 (en) | 2015-06-05 | 2021-06-22 | Mueller International, Llc | Distribution system monitoring |
| US11725366B2 (en) | 2020-07-16 | 2023-08-15 | Mueller International, Llc | Remote-operated flushing system |
-
2003
- 2003-06-07 CN CNB031375308A patent/CN100491718C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1458405A (en) | 2003-11-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Xie Xiaolin Document name: Written notice of preliminary examination of application for patent for invention |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Xie Xiaolin Document name: Notification of the application for patent for invention to go through the substantive examination procedure |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090527 |