CN204877765U - Novel blade of hydraulic turbine - Google Patents
Novel blade of hydraulic turbine Download PDFInfo
- Publication number
- CN204877765U CN204877765U CN201520647807.4U CN201520647807U CN204877765U CN 204877765 U CN204877765 U CN 204877765U CN 201520647807 U CN201520647807 U CN 201520647807U CN 204877765 U CN204877765 U CN 204877765U
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- CN
- China
- Prior art keywords
- blade
- water
- hydraulic turbine
- utility
- model
- 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
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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 utility model discloses a novel blade of hydraulic turbine, including blade and arch, the blade is the arc structure, and the arc concave surface department of blade is equipped with the arch, protruding anterior and rear portion all is cambered surface concave structures, protruding surface scribbles the glossy anti -cavitation layer of one deck, the blade upper end is equipped with the connector of two cylinder types, the connector is connected with the runner draw -in groove formula in the hydraulic turbine, compares with prior art, and this blade absorbs the high -usage to the kinetic energy of water, and good, the resistant cavitation nature of structural strength is good, long service life.
Description
[technical field]
The utility model relates to a kind of water turbine, particularly a kind of blade of new type hydraulic turbine.
[background technique]
The main working principle of water turbine is exactly be the kinetic energy of water turbine by the kinetic transformation of water, and a wherein crucial step is the blade rotation utilizing the kinetic energy of water to drive water turbine, realize the transmission of energy, therefore blade needs the kinetic energy absorbing water to greatest extent, therefore traditional blade is all provided with tank, water is received in tank, thus improves the energy utilized efficiency to water.
But after considering water impact blades, water loses the proal speed of relative vane, hydropexis is at blade on impeller, and impeller, by the water acting be trapped on impeller, drives the water be detained with wheel rotation.And whether the kinetic energy that the water fallen under gravity produces can be utilized by impeller, need to see blade and water velocity relationship in vertical direction, if the speed that the speed of water free fall on impeller moves downward faster than blade, impeller is done work by water; If water speed of free fall on impeller is slower than the speed that blade moves downward, impeller will drive water to do work.
[model utility content]
The purpose of this utility model solves the problems of the prior art exactly, proposes a kind ofly can improve the energy utilized efficiency of blade to water, and reduces the blade of hydropexic new type hydraulic turbine.
For achieving the above object, the utility model proposes a kind of blade of new type hydraulic turbine, comprise blade and projection, the curved structure of described blade, the arc-shaped concave place of blade is provided with projection, and described raised front portion and rear portion are all in cambered surface concave structure, and described convex surfaces scribbles the smooth anti-cavitation layer of one deck, described blade upper end is provided with the connecting body of two cylinder types, and described connecting body is connected with the runner groove-fastening type in water turbine.
As preferably, the blade body on described blade top is thicker, and blade body is thinning gradually downwards.
As preferably, the runner in described blade and water turbine adopts and is welded to connect.
The beneficial effects of the utility model: the utility model is by scattering the water impacted on blade to both sides water conservancy diversion, with after reducing water resilience with newly impacts and water collide, improve the utilization ratio to the kinetic energy of water, on blade, the ability of occluded water is poor simultaneously, and be provided with anti-cavitation layer, compared with prior art, the kinetic energy absorption utilization ratio of this blade to water is high, structural strength is good, resistance to pitting good, long service life.
Feature of the present utility model and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the blade of a kind of new type hydraulic turbine of the utility model;
Fig. 2 is the sectional view of A-A in Fig. 1.
In figure: 1-blade, 2-are protruding, 3-anti-cavitation layer.
[embodiment]
Consult Fig. 1 and Fig. 2, the blade of a kind of new type hydraulic turbine of the utility model, comprise blade 1 and protruding 2, the curved structure of described blade 1, the arc-shaped concave place of blade 1 is provided with protruding 2, described protruding 2 front and rears are all in cambered surface concave structure, described protruding 2 surfaces scribble the smooth anti-cavitation layer 3 of one deck, described blade 1 upper end is provided with the connecting body of two cylinder types, described connecting body is connected with the runner groove-fastening type in water turbine, the blade body on described blade 1 top is thicker, and blade body is thinning gradually downwards, and described blade 1 adopts with the runner in water turbine and is welded to connect.
Utility model works process:
The blade of a kind of new type hydraulic turbine of the utility model in the course of the work, water impact is to the concave surface of blade 1, the kinetic transformation of current is the kinetic energy of blade 1, the water impacted on blade 1 outwards arranges by the projection 2 on blade 1, reduce the interphase interaction of water and water, and the concave design of blade, the area of water slug can be expanded, can prevent again hydropexis on blade 1, finally projection 2 surface of water impact is suffered to scribble one deck anti-cavitation layer at blade 1, reduce the generation of blade 1 cavitation, compared with prior art, the kinetic energy absorption utilization ratio of this blade to water is high, structural strength is good, resistance to pitting good, long service life.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, anyly all belongs to protection domain of the present utility model to the scheme after the utility model simple transformation.
Claims (3)
1. the blade of a new type hydraulic turbine, it is characterized in that: comprise blade (1) and protruding (2), described blade (1) curved structure, the arc-shaped concave place of blade (1) is provided with projection (2), described projection (2) front and rear is all in cambered surface concave structure, described projection (2) surface scribbles the smooth anti-cavitation layer (3) of one deck, described blade (1) upper end is provided with the connecting body of two cylinder types, and described connecting body is connected with the runner groove-fastening type in water turbine.
2. the blade of a kind of new type hydraulic turbine as claimed in claim 1, is characterized in that: the blade body on described blade (1) top is thicker, and blade body is thinning gradually downwards.
3. the blade of a kind of new type hydraulic turbine according to any one of claim 1 to 2, is characterized in that: described blade (1) adopts with the runner in water turbine and is welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520647807.4U CN204877765U (en) | 2015-08-25 | 2015-08-25 | Novel blade of hydraulic turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520647807.4U CN204877765U (en) | 2015-08-25 | 2015-08-25 | Novel blade of hydraulic turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204877765U true CN204877765U (en) | 2015-12-16 |
Family
ID=54822146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520647807.4U Expired - Fee Related CN204877765U (en) | 2015-08-25 | 2015-08-25 | Novel blade of hydraulic turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204877765U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657057A (en) * | 2019-10-28 | 2020-01-07 | 重庆理工大学 | Arc blade pivoted offset square formula hydraulic turbine |
| CN111426146A (en) * | 2020-04-01 | 2020-07-17 | 李亚勤 | Cup for quickly cooling boiled water |
-
2015
- 2015-08-25 CN CN201520647807.4U patent/CN204877765U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657057A (en) * | 2019-10-28 | 2020-01-07 | 重庆理工大学 | Arc blade pivoted offset square formula hydraulic turbine |
| CN110657057B (en) * | 2019-10-28 | 2020-09-01 | 重庆理工大学 | Arc blade pivoted offset square formula hydraulic turbine |
| CN111426146A (en) * | 2020-04-01 | 2020-07-17 | 李亚勤 | Cup for quickly cooling boiled water |
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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: 20151216 Termination date: 20190825 |