CN102444530A - Water diversion device for water turbine - Google Patents
Water diversion device for water turbine Download PDFInfo
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- CN102444530A CN102444530A CN2010102976496A CN201010297649A CN102444530A CN 102444530 A CN102444530 A CN 102444530A CN 2010102976496 A CN2010102976496 A CN 2010102976496A CN 201010297649 A CN201010297649 A CN 201010297649A CN 102444530 A CN102444530 A CN 102444530A
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- China
- Prior art keywords
- water
- spiral case
- turbine
- water turbine
- diversion device
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- 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.)
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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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- Hydraulic Turbines (AREA)
Abstract
The invention discloses a water diversion device for a water turbine, comprising a volute, wherein a drain hole is arranged at the bottom of the volute. The water diversion device is simple in structure and convenient in use, has high water diversion efficiency and can prevent impurities such as silts from being deposited.
Description
Technical field
The present invention relates to a kind of water turbine, especially a kind of water turbine water diversion apparatus belongs to the water conservancy equipment technical field.
Background technique
Water turbine is to be the transformation of energy of current the dynamic power machine of rotating mechanical energy.Modern water turbine great majority are installed in the water power plant, are used for driving generator for electricity generation.In the water power plant, the water in the upper pond is guided water turbine into through aqueduct, promotes the rotary wheel of water turbine rotation, drives generator for electricity generation.The water of finishing merit then passes through the tail water row of conduits downstream.Head is high more, flow is big more, and the output power of water turbine is also just big more.Reaction turbine is a kind of of water turbine, and it has obtained all over the world using widely with the energy conversion efficiency height.Various types of reaction turbines all are provided with water feed apparatus, and the water feed apparatus of large and medium-sized vertical shaft reaction turbine generally is made up of spiral case, fixed guide vane and movable guide vane.The effect of spiral case is to be evenly distributed to current around the runner.When head below 40 meters the time, the spiral case of water turbine reinforced concrete cast on-site commonly used forms; When head is higher than 40 meters, the then normal metal spiral case that adopts welding or block cast.In reaction turbine, current are full of whole runner channel, and all blade receives the effect of current simultaneously, so under same head, runner diameter is less than impulse turbine.Their peak efficiency also is higher than impulse turbine, but when load variations, the efficient of water turbine receives influence in various degree.Reaction turbine all is provided with draft tube, and its effect is: the kinetic energy that reclaims outlet of rotary wheel place current; Current row downstream; When the mounting point of runner was higher than the level of tail water, this potential energy is converted into pressure can be reclaimed.For the water turbine of the big flow of low water head, the outlet kinetic energy of runner is relatively large, and the recyclability of draft tube has appreciable impact to the efficient of water turbine.Owing to also have impurity such as silt in the water in river, can deposit in spiral case, thereby cause the decrease in efficiency of water turbine.
Summary of the invention
Technical problem to above-mentioned existence the objective of the invention is: proposed a kind of simple in structurely, easy to use, diversion efficient is high, can prevent the water turbine water diversion apparatus of impurity alluvial such as silt.
Technical solution of the present invention is achieved in that a kind of water turbine water diversion apparatus, comprises spiral case, it is characterized in that, drain opening is arranged at said spiral case bottom, and there is filter screen said spiral case water inlet, and vent hole is arranged at said spiral case top.
Further, said spiral case is that steel plate is welded.
The invention has the beneficial effects as follows: the drain opening of spiral case bottom can be got rid of dirt, silt and ponding in the spiral case.The vent hole at spiral case top can make spiral case when water-filling, discharge air in the spiral case.Thereby can water be introduced water distributor with the loss of minimum, improve the transformation efficiency of energy.
Description of drawings
Below in conjunction with accompanying drawing technological scheme of the present invention is described further:
Fig. 1 is the water turbine that comprises water diversion apparatus of the present invention.
Wherein: 1 spiral case; 2 drain opening; 3 vent holes; 4 stators; 5 runners; 6 draft tubes.
Embodiment
Below in conjunction with accompanying drawing the present invention is described.
Water turbine water diversion apparatus as shown in Figure 1 comprises spiral case 1, and drain opening 2 is arranged at spiral case 1 bottom, and there is filter screen spiral case 1 water inlet, and vent hole 3 is arranged at spiral case 1 top, and spiral case 1 is welded for steel plate.During working state, spiral case makes current produce certain circular rector, with the loss of minimum water is introduced water distributor, and drain opening is equipped with in its bottom, to get rid of dirt, silt and the ponding in the spiral case.The spiral case top has vent hole to make spiral case when water-filling, discharge air in the spiral case.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage that is familiar with this technology can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (2)
1. a water turbine water diversion apparatus comprises spiral case, it is characterized in that, drain opening is arranged at said spiral case bottom, and there is filter screen said spiral case water inlet, and vent hole is arranged at said spiral case top.
2. according to the described spiral case of above claim, it is characterized in that said spiral case is that steel plate is welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102976496A CN102444530A (en) | 2010-09-30 | 2010-09-30 | Water diversion device for water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102976496A CN102444530A (en) | 2010-09-30 | 2010-09-30 | Water diversion device for water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102444530A true CN102444530A (en) | 2012-05-09 |
Family
ID=46007371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102976496A Pending CN102444530A (en) | 2010-09-30 | 2010-09-30 | Water diversion device for water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102444530A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343748A (en) * | 2020-09-23 | 2021-02-09 | 浙江迅和机械制造有限公司 | Water turbine |
-
2010
- 2010-09-30 CN CN2010102976496A patent/CN102444530A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343748A (en) * | 2020-09-23 | 2021-02-09 | 浙江迅和机械制造有限公司 | Water turbine |
| CN112343748B (en) * | 2020-09-23 | 2022-02-11 | 浙江迅和机械制造有限公司 | Water turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120509 |