CN1458405A - automatic air compensating central hole device of water turbine - Google Patents
automatic air compensating central hole device of water turbine Download PDFInfo
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- CN1458405A CN1458405A CN03137530A CN03137530A CN1458405A CN 1458405 A CN1458405 A CN 1458405A CN 03137530 A CN03137530 A CN 03137530A CN 03137530 A CN03137530 A CN 03137530A CN 1458405 A CN1458405 A CN 1458405A
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- air supply
- way valve
- float
- water
- center hole
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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
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 type one-way valve that serial connection has guide rod on air supply passage, and its deficiency is the easy hair fastener of 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 type one-way valve and air supply passage, the float type one-way valve is serially connected on the air supply passage, the conducting direction of float type one-way valve is consistent with the tonifying Qi direction, is placed with free float in the valve pocket of float type one-way valve.With existing technology ratio, because float is free float, there is not guide rod, thereby does not have the restriction of guide rod yet, thus be not easy hair fastener, so reliability is higher.
Major advantage of the present invention is that float is difficult for hair fastener, the reliability height, and also owing to cancelled guide rod, its structure is simple relatively.
In order more effectively to prevent backwater, free float can comprise flap, buoyancy thing and connecting rod, and flap is positioned at the top of buoyancy thing, and flap is fixed on the upper end of connecting rod, and the buoyancy thing then is fixed on the lower end of connecting rod.
Concentrate for fear of free float wearing and tearing, the shape of free float is preferably spherical.
In order to strengthen the sealing effect of cut-off state, the sealing surface that the unlatching of float type one-way valve is closed mouthful can also be the sphere that matches with free floating ball.
In order to improve the uplift of free float, free float preferably has airtight hollow-core construction.
Influence anti-backwater effect in order to prevent free float corrosion, free float is stainless steel material preferably.
For the wearing and tearing that alleviate free float, improve its working life, the valve pocket inwall of float type one-way valve can be provided with the flexible material layer, this flexible material layer can be a rubber material.
In order to make only conducting when the needs tonifying Qi of air supply passage, can be serially connected with a pressure type one-way valve in the front of float type one-way valve, and the conducting direction of this pressure type one-way valve is consistent with the tonifying Qi direction.
The pressure type one-way valve can be the spring one-way valve.
(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;
Fig. 3 is vertical cross-sectional schematic that the embodiment of the invention 2 is in the tonifying Qi state;
Fig. 4 is vertical cross-sectional schematic that the embodiment of the invention 2 is in the backwater state;
Fig. 5 is the partial schematic sectional view that the embodiment of the invention 3 is in the backwater state;
1. float 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 type one-way valve, 5. the float type one-way valve is opened closed mouthful sealing surface, 6. float, 7. elastometric lining, 8. the hollow tubular axis of water turbine, 9. short straight tube, 10. rubber plate, 11. flap, 12. the buoyancy thing, 13. connecting rods, 14. circular corrosion resistant plates.
(5) embodiment
Embodiment 1:
Shown in accompanying drawing 1, accompanying drawing 2, present embodiment mainly comprises float type one-way valve 1, pressure type one-way valve 2 and blowdown pipe 3, and pressure type one-way valve 2 and float 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 type one-way valve 1.On the valve pocket inwall 4 of float 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 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 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 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.
Embodiment 2:
Shown in accompanying drawing 3, accompanying drawing 4, present embodiment mainly comprises float type one-way valve 1 and turbine shaft 8, turbine shaft 8 is hollow tubular axis, and its hollow passageway 3 promptly is an air supply passage, and float type one-way valve 1 is arranged in the hollow tubular axis 8 of water turbine, is serially connected on the air supply passage 3.The unlatching of float type one-way valve 1 is one section short straight tube 9 for closed mouthful, be placed with a hollow free floating drum 6 in the valve pocket, on the end face of free floating drum 6, be fixed with rubber plate 10, the diameter of valve pocket is 300mm, the external diameter of free floating drum is 250mm, the internal diameter of straight tube 9 is 160mm, and the height of free floating drum is 150mm.Under the tonifying Qi state, there is not water in the blowdown pipe, float type one-way valve 1 is conducting, the air in the atmosphere can freely pass through air supply passage 3 to the tonifying Qi of water wheels place; When for a certain reason backwater taking place, the free floating drum 6 in the float type one-way valve 1 will be sealed the lower end mouth of straight tube 9 under buoyancy function, thereby prevents the backwater ejection.
Embodiment 3:
As shown in Figure 5, be connected by seal ring between the lower end of blowdown pipe 3 and the water turbine tubular axis, the other end then is connected with float type one-way valve 1, the unlatching of float type one-way valve 1 is one section short straight tube 9 for closed mouthful, be placed with the float 6 of dumbbell-like shape in the valve pocket, float 6 is by flap 11, connecting rod 13 and buoyancy thing 12 are formed, 11 of flaps are made up of rubber plate 10 and circular corrosion resistant plate 14, rubber plate 10 is bonded on the circular corrosion resistant plate 14, buoyancy thing 12 is the stainless steel floating balls with confined air core structure, connecting rod 13 then is one section Stainless Steel Tube, and flap 11 welds with the upper end of connecting rod 13, and then weld with buoyancy thing 12 lower end of connecting rod 13.
Claims (10)
1. water turbine center hole center hole automatic air supply device that utilizes buoyancy of water to prevent the air supply passage backwater, mainly comprise float type one-way valve (1) and air supply passage (3), float type one-way valve (1) is serially connected on the air supply passage (3), the conducting direction of float type one-way valve (1) is consistent with the tonifying Qi direction, have float (6) in the valve pocket of float type one-way valve (1), it is characterized in that: this float (6) is free float.
2. the water turbine center hole 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 float (6) comprises flap (11), buoyancy thing (12) and connecting rod (13), flap (11) is positioned at the top of buoyancy thing (12), flap (11) is fixed on the upper end of connecting rod (13), and buoyancy thing (12) then is fixed on the lower end of connecting rod (13).
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 is characterized in that: the shape of free float (6) is spherical.
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 is characterized in that: the sealing surface (5) that the unlatching of float type one-way valve (1) is closed mouthful is the sphere that matches with free floating ball (6).
5. according to the described water turbine center hole automatic air supply device that utilizes buoyancy of water to prevent the air supply passage backwater of claim 1 to 4, it is characterized in that: free float (6) has airtight hollow-core construction.
6. according to the described water turbine center hole automatic air supply device that utilizes buoyancy of water to prevent the air supply passage backwater of claim 1 to 4, it is characterized in that: free float (6) is a stainless steel material.
7. according to the described water turbine center hole automatic air supply device that utilizes buoyancy of water to prevent the air supply passage backwater of claim 1 to 4, it is characterized in that: the valve pocket inwall of float type one-way valve (1) is provided with flexible material layer (7).
8. the water turbine center hole automatic air supply device that utilizes buoyancy of water to prevent the air supply passage backwater according to claim 7, it is characterized in that: described flexible material layer (7) is a rubber material.
9. according to the described water turbine center hole automatic air supply device that utilizes buoyancy of water to prevent the air supply passage backwater of claim 1 to 4, it is characterized in that: also be serially connected with a pressure type one-way valve (2) in the front of float type one-way valve (1), the conducting direction of this pressure type one-way valve (2) is consistent with the tonifying Qi direction.
10. the water turbine center hole automatic air supply device that utilizes buoyancy of water to prevent the air supply passage backwater according to claim 9, it is characterized in that: described pressure type one-way valve (2) is the spring one-way valve.
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 true CN1458405A (en) | 2003-11-26 |
| CN100491718C CN100491718C (en) | 2009-05-27 |
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| 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 |
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| Country | Link |
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| CN (1) | CN100491718C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728022A (en) * | 2015-03-16 | 2015-06-24 | 中国长江电力股份有限公司 | Suspended device for fixing tail end of lower blowdown pipe of large hydropower station unit |
| US20180372706A1 (en) * | 2013-03-15 | 2018-12-27 | Mueller International, Llc | Systems for measuring properties of water in a water distribution system |
| 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
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180372706A1 (en) * | 2013-03-15 | 2018-12-27 | Mueller International, Llc | Systems for measuring properties of water in a water distribution system |
| US11255835B2 (en) | 2013-03-15 | 2022-02-22 | Mueller International, Llc | Systems for measuring properties of water in a water distribution system |
| US11307190B2 (en) * | 2013-03-15 | 2022-04-19 | Mueller International, Llc | Systems for measuring properties of water in a water distribution system |
| CN104728022A (en) * | 2015-03-16 | 2015-06-24 | 中国长江电力股份有限公司 | Suspended device for fixing tail end of lower blowdown pipe of 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100491718C (en) | 2009-05-27 |
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Addressee: Xie Xiaolin Document name: Written notice of preliminary examination of application for patent for invention |
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Addressee: Xie Xiaolin Document name: Notification of the application for patent for invention to go through the substantive examination procedure |
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