CN202899099U - Stream guidance pier set used for inflow forebay of hydropower station - Google Patents
Stream guidance pier set used for inflow forebay of hydropower station Download PDFInfo
- Publication number
- CN202899099U CN202899099U CN201220591949XU CN201220591949U CN202899099U CN 202899099 U CN202899099 U CN 202899099U CN 201220591949X U CN201220591949X U CN 201220591949XU CN 201220591949 U CN201220591949 U CN 201220591949U CN 202899099 U CN202899099 U CN 202899099U
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- pier
- stream guidance
- forebay
- inflow
- course
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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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Abstract
The utility model discloses a stream guidance pier set used for an inflow forebay of a hydropower station. The stream guidance pier set comprises a plurality of stream guidance piers uniformly arranged in the inflow forebay at intervals, upper course ends of the stream guidance piers are upper-course pier heads, lower course ends of the stream guidance piers are lower-course pier tails, the upper-course pier heads are semi-circular, the lower-course pier heads are leaf-shaped, the stream guidance piers are arranged in the inflow forebay of the hydropower station, water flows past the stream guidance piers to have a function of stream guidance, and accordingly flow pattern of the inflow forebay of the hydropower station is evidently improved, circulation and vertical axis vortex are eliminated, head loss is effectively lowered, and the stream guidance pier set is applied in the field of hydropower engineering facilities.
Description
Technical field
The utility model relates to a kind of diversion pier, particularly a kind of diversion pier group for the power station forebay.
Background technology
The power station is a kind of integration engineering facility that water can be converted to electric energy, generally comprise the reservoir that formed by dash, outlet structure escape works and Diversion system of hydropower station, power plant building, electromechanical equipment etc., utilize these buildings to concentrate the drop of natural current to form head, compile, regulate the flow of natural current, and it is transferred to the hydraulic turbine, through the co-operation of the hydraulic turbine and generator, the water of concentrating can be converted to electric energy, through transformer, switching station and transmission line of electricity etc. electric energy is inputted electrical network again.For the large flow power station of middle low water head, the water inlet in power station generally adopts the with no pressure water intake mode, and this water intake mode needs forebay to possess good flow-shape, prevents air-breathing whirlpool, need simultaneously to block dirt, sediment trapping, and head loss is little.
Yet in the prior art in order to make the power station forebay have good fluidised form, general design form is to make forebay have larger space, but engineering arranges that being subject to solid space limits sometimes, can not be provided with the forebay than large space, and then when sufficient water inlet storage capacity can not be arranged, in addition the anchoring pier stream impact, often produce bad flow-shape as producing circulation and vertical shaft whirlpool in a big way, and head loss is large, thereby affects the normal operation in power station.
The utility model content
Technical problem to be solved in the utility model provides a kind of diversion pier group that can significantly improve the flow-shape of power station forebay.
For solving the problems of the technologies described above the technical scheme that adopts: a kind of diversion pier group for the power station forebay, comprise that some intervals evenly are arranged on the diversion pier in the forebay, the water conservancy diversion upstream pier nose is the upstream pier nose, and the downstream of diversion pier is downstream pier tail.
Be further used as the improvement of technical solutions of the utility model, the upstream pier nose is semi-circular.
Be further used as the improvement of technical solutions of the utility model, downstream pier tail is blade profile.
The beneficial effects of the utility model: by be provided with diversion pier in the forebay in power station, current significantly improve the flow-shape of power station forebay through the guide functions of diversion pier, eliminate circulation and vertical shaft whirlpool, effectively reduce head loss.
Description of drawings
Below in conjunction with drawings and embodiments the utility model is further described;
Fig. 1 is structural representation of the present utility model.
The specific embodiment
With reference to Fig. 1, a kind of diversion pier group for the power station forebay of the utility model comprises that some intervals evenly are arranged on the diversion pier 1 in the forebay 2, and the upstream extremity of diversion pier 1 is upstream pier nose 11, and the downstream of diversion pier 1 is downstream pier tail 12.
By be provided with diversion pier 1 in the forebay 2 in power station, current significantly improve the flow-shape of power station forebay 2 through the guide functions of diversion pier 1, eliminate circulation and vertical shaft whirlpool, effectively reduce head loss.
As the utility model preferred embodiment, upstream pier nose 11 is semi-circular, and downstream pier tail 12 is blade profile.
The above has done detailed description to embodiment of the present utility model by reference to the accompanying drawings, but the utility model is not limited to above-mentioned embodiment, in the ken that described technical field those of ordinary skill possesses, can also under the prerequisite that does not break away from the utility model aim, make various variations.
Claims (3)
1. diversion pier group that is used for the power station forebay, it is characterized in that: comprise that some intervals evenly are arranged on the diversion pier (1) in the forebay (2), the upstream extremity of described diversion pier (1) is upstream pier nose (11), and the downstream of described diversion pier (1) is downstream pier tail (12).
2. described diversion pier group for the power station forebay according to claim 1, it is characterized in that: described upstream pier nose (11) is semi-circular.
3. described diversion pier group for the power station forebay according to claim 1 and 2, it is characterized in that: described downstream pier tail (12) is blade profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220591949XU CN202899099U (en) | 2012-11-09 | 2012-11-09 | Stream guidance pier set used for inflow forebay of hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220591949XU CN202899099U (en) | 2012-11-09 | 2012-11-09 | Stream guidance pier set used for inflow forebay of hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202899099U true CN202899099U (en) | 2013-04-24 |
Family
ID=48119788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220591949XU Expired - Lifetime CN202899099U (en) | 2012-11-09 | 2012-11-09 | Stream guidance pier set used for inflow forebay of hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202899099U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469830A (en) * | 2013-09-16 | 2013-12-25 | 水利部交通运输部国家能源局南京水利科学研究院 | Reduction method for basic wave current vibration of offshore wind power single pile |
| CN107724342A (en) * | 2016-04-18 | 2018-02-23 | 辽宁省水利水电勘测设计研究院 | A kind of bifurcation pivot |
-
2012
- 2012-11-09 CN CN201220591949XU patent/CN202899099U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469830A (en) * | 2013-09-16 | 2013-12-25 | 水利部交通运输部国家能源局南京水利科学研究院 | Reduction method for basic wave current vibration of offshore wind power single pile |
| CN103469830B (en) * | 2013-09-16 | 2015-10-07 | 水利部交通运输部国家能源局南京水利科学研究院 | Reduction method for basic wave current vibration of offshore wind power single pile |
| CN107724342A (en) * | 2016-04-18 | 2018-02-23 | 辽宁省水利水电勘测设计研究院 | A kind of bifurcation pivot |
| CN107724342B (en) * | 2016-04-18 | 2019-08-13 | 辽宁省水利水电勘测设计研究院 | A kind of bifurcation pivot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
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| CX01 | Expiry of patent term |