CN203248307U - Mixed-flow water turbine - Google Patents
Mixed-flow water turbine Download PDFInfo
- Publication number
- CN203248307U CN203248307U CN2013201087003U CN201320108700U CN203248307U CN 203248307 U CN203248307 U CN 203248307U CN 2013201087003 U CN2013201087003 U CN 2013201087003U CN 201320108700 U CN201320108700 U CN 201320108700U CN 203248307 U CN203248307 U CN 203248307U
- Authority
- CN
- China
- Prior art keywords
- water
- mixed
- flow
- inner housing
- frame
- 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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Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Hydraulic Turbines (AREA)
Abstract
The utility model discloses a mixed-flow water turbine. The mixed-flow water turbine comprises an outer shell, an inner shell and an electric generator, wherein a water passing cavity is formed between the outer shell and the inner shell, the outer shell is provided with a water inlet and a water outlet, a plurality of fixed guide vanes are arranged in the middle segment portion of the cavity, and a plurality of movable guide vanes capable of rotating are installed between the outer shell close to mixed-flow rotating wheels and the inner shell close to the mixed-flow rotating wheels; the outer shell and the inner shell are in revolution body shapes; the electric generator is arranged in the inner shell and coupled with one mixed-flow rotating wheel in the cavity. The bulb-shaped water passing cavity formed between the outer shell and the inner shell is adopted for the mixed-flow water turbine, the movable guide vanes arranged in the interior water way or the fixed guide vanes arranged in the interior water are matched with the mixed-flow water turbine, and the mixed-flow water turbine can ensure that in a wide flow range, the water flow evenly enters the rotating wheels with certain circular rector. The mixed-flow water turbine is easy to design and manufacture, the electric generator is installed in the front inner shell, therefore, a water-turbine generating unit is small in size, and the space utilization rate is high.
Description
Technical field
The utility model relates to a kind of water turbine, relates in particular to a kind of Francis turbine.
Background technique
Water turbine is a kind of hydraulic prime mover that water can be converted to rotating mechanical energy, and the difference of changing the flow energy mode according to runner is divided into a lot of classes.The Francis turbine current from around radially enter runner, then approximate with axial outflow runner, it is wider that it uses head scope, stable and efficient is high, is most widely used a kind of water turbine.
The flow passage components of Francis turbine generally comprise flume, water distributor, runner and draft tube, and flume has open type flume, pot type flume and scroll casing type flume three major types.The open type flume is to make a tank of opening wide in the turbine gate mechanism periphery, and to guarantee the current axisymmetric, its planar dimension is usually very large; The outer jar of image of the pot type flume of Francis turbine, turn sharp before entering water distributor, current are inhomogeneous; The profile of scroll casing type flume is the spitting image of hodmadod, and for guaranteeing evenly to supply water to water distributor, the section of spiral case reduces gradually, and it is to use the most general a kind of flume, but manufactures and designs complexity, and reduces in the uniformity of off-design behaviour current.
In addition, for Francis turbine, general independent being placed on outside the flow passage components of the generator supporting with it transmitted mechanical energy by transmission shaft, causes the whole floor space of hydraulic generator unit larger, and space availability ratio is not high.
The model utility content
Goal of the invention: the purpose of this utility model provides a kind of small-sized, simple Francis turbine.
Technological scheme: for achieving the above object, a kind of Francis turbine of the present utility model, comprise frame, inner housing and generator, form the water flowing chamber between described frame and the inner housing, frame is provided with water inlet and water outlet, described chamber center section part is provided with some fixed guide vanes, between near the frame the described francis turbine runner and the inner housing some rotating movable guide vanes is installed; Described frame and inner housing are revolution shape; Described generator is located in the inner housing, and rotating francis turbine runner of generator shaft connection is in chamber.
Shell shape of the present utility model is irregular revolution shape, and described frame and inner housing form the pinnacle shape near the water inlet place, makes things convenient for current to enter and disperses; Described frame and inner housing are the passivity plate-like near water outlet, wherein accommodate described mixed flow water runner, the current that herein design original axial direction motion become radially, the impact francis turbine runner rotates, with this generator generating with the moving axis connection, current put together towards water outlet after doing work through francis turbine runner.
Described movable guide vane is installed between frame and the inner housing through bearing pin, and described bearing pin is vertical with water (flow) direction.Described movable guide vane plays water conservancy diversion and adjust flux; Fixed guide vane adopts spatial guide blade, plays a part to connect and water conservancy diversion.
The power line of described generator leads to the water turbine surface through inner housing, frame successively, for delivery of electric energy.
Beneficial effect: a kind of Francis turbine of the present utility model adopts a kind of novel rotation inside and outside housing design to form the water flowing chamber of circumference symmetry, cooperate some activities of arranging in the inner water route or fixing stator, can guarantee that current evenly enter runner with certain circular rector in wider range of flow, this device manufactures and designs simply, generator is installed in the inner housing in runner the place ahead, make hydraulic generator unit small volume, space availability ratio is high.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, a kind of Francis turbine of the present utility model, comprise frame 1, inner housing 2 and generator 3, form water flowing chamber 4 between frame 1 and the inner housing 2, frame 1 is provided with water inlet 5 and water outlet 6, and generator 3 is located in the inner housing 2, and francis turbine runner 7 of generator 3 axles connection is in chamber 4, chamber 4 center section parts are provided with some fixed guide vanes 8, between near the frame 1 the francis turbine runner 7 and the inner housing 2 some rotating movable guide vanes 9 are installed; Frame 1 and inner housing 2 are revolution shape.Wherein, frame 1 and inner housing 2 forms the pinnacle shapes near water inlet 5 places, makes things convenient for current to enter and disperses; Frame 1 and inner housing 2 are the passivity plate-like near water outlet 6 places, wherein accommodate mixed flow water runner 7, and the current that herein design original axial direction motion become radially, put together towards water outlet.
Movable guide vane 9 is installed between frame 1 and the inner housing 2 through bearing pin, and bearing pin is vertical with water (flow) direction.Movable guide vane 9 plays water conservancy diversion and adjust flux, and number is 8 ~ 15, and fixed guide vane 8 plays connection and water conservancy diversion, and number is 5 ~ 12.
A kind of Francis turbine working principle of the present utility model is with reference to shown in the arrow among the figure 1: during work, upper waters enters water flowing chamber 4 by intake pipe by water inlet 5 under higher pressure, enter francis turbine runner 7 with certain rotation circular rector under the guiding of fixed guide vane 8 and movable guide vane 9, current promote francis turbine runner 7 and rotate, the pressure energy of current and kinetic energy transmission are the rotating mechanical energy of francis turbine runner 7, drive generator 3 generatings, the electricity that sends is spread out of by power line.
The above only is preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. Francis turbine, comprise frame (1), inner housing (2) and generator (3), form water flowing chamber (4) between described frame (1) and the inner housing (2), frame (1) is provided with water inlet (5) and water outlet (6), it is characterized in that: described generator (3) is located in the inner housing (2), generator (a 3) axle rotating francis turbine runner of connection (7) is in chamber (4), described chamber (4) center section part is provided with some fixed guide vanes (8), between near the frame (1) the described francis turbine runner (7) and the inner housing (2) some rotating movable guide vanes (9) is installed; Described frame (1) and inner housing (2) are revolution shape.
2. a kind of Francis turbine according to claim 1 is characterized in that: described frame (1) and inner housing (2) locate to form the pinnacle shape near water inlet (5); Described frame (1) and inner housing (2) are located to be the passivity plate-like near water outlet (6), are wherein accommodated described francis turbine runner (7).
3. a kind of Francis turbine according to claim 1, it is characterized in that: described movable guide vane (9) is installed between frame (1) and the inner housing (2) through bearing pin, and described bearing pin is vertical with water (flow) direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201087003U CN203248307U (en) | 2013-03-11 | 2013-03-11 | Mixed-flow water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201087003U CN203248307U (en) | 2013-03-11 | 2013-03-11 | Mixed-flow water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248307U true CN203248307U (en) | 2013-10-23 |
Family
ID=49374749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201087003U Expired - Fee Related CN203248307U (en) | 2013-03-11 | 2013-03-11 | Mixed-flow water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203248307U (en) |
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2013
- 2013-03-11 CN CN2013201087003U patent/CN203248307U/en not_active Expired - Fee Related
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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: 20131023 Termination date: 20180311 |