CN203222785U - Y-shaped flow guiding pier used for forebay rectification - Google Patents
Y-shaped flow guiding pier used for forebay rectification Download PDFInfo
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- CN203222785U CN203222785U CN2013202229533U CN201320222953U CN203222785U CN 203222785 U CN203222785 U CN 203222785U CN 2013202229533 U CN2013202229533 U CN 2013202229533U CN 201320222953 U CN201320222953 U CN 201320222953U CN 203222785 U CN203222785 U CN 203222785U
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- forebay
- flow guiding
- conservancy diversion
- water conservancy
- diversion pier
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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 Y-shaped flow guiding pier used for forebay rectification and belongs to the technical field of water conservancy projects. The Y-shaped flow guiding pier used for the forebay rectification comprises a water inlet culvert, a forebay, a water inlet pond and water pump absorption tubes, wherein the water inlet culvert is connected with the forebay, the water inlet pond and the water pump absorption tubes in sequence, the water pump absorption tubes are arranged in the water inlet pond, a Y-shaped flow guiding pier body which is formed by three flow guiding plates is arranged on the front portion of the forebay, the flow guiding plate on the front portion of the Y-shaped flow guiding pier body faces the water inlet culvert, the included angle between the two flow guiding plates on the rear portion of the Y-shaped flow guiding pier body is 120 degrees, the height of the Y-shaped flow guiding pier body is two thirds of the depth of the water in the forebay, the length of the flow guiding pier body is 1.736 times of the diameter of each water pump absorption tube, the distance between the position where the three flow guiding plates of the Y-shaped flow guiding pier body are connected and the water inlet pond is 22.7 times of the diameter of each water pump absorption tube, and a plurality of small holes are formed in the two flow guiding plates on the rear portion of the flow guiding pier body. According to the Y-shaped flow guiding pier used for the forebay rectification, the problem of uneven velocity distribution of water in the forebay in front of a pump station is solved, the flow velocity of water in front of the water inlet pond of the pump station can tend to balance before the water flows into the water inlet ponds, and the efficiency of the pump station is improved.
Description
Technical field
The utility model relates to the structure of pump works forebay, and particularly the structure of the water conservancy diversion pier that arranges in the pumping plant forebay belongs to the hydraulic engineering technical field.
Background technology
Because the forebay angle of flare is bigger, current produce and take off wall, and deflection phenomenon is comparatively serious, reflux and whirlpool thereby produce in the forebay, cause smooth, the cross-sectional flow skewness of current in the pond, and are violent and produce silt alluvial etc. in the forebay along pond length direction change in flow.Pumping plant can cause the main flow deviation when asymmetric start, cause the fluidised form disorder, has a strong impact on pumping station operation efficient.
For improving the water inlet fluidised form of forward water inlet pumping plant, the measure of adopting at present has: end bank, bank of the discontinuous end, choose stream bank, setting-out plate and deflector etc. continuously.But present measure is difficult to eliminate completely the bad fluidised form in forebay.
The utility model content
The purpose of this utility model is exactly at existingThe deficiency that pool structure exists before the pumping plant provides a kind of Y type water conservancy diversion pier for the forebay rectification, can effectively improve the bad fluidised form of pumping plant, and not bring out new recirculating zone or whirlpool.Y type water conservancy diversion pier has shunting effect, and the current of the Y type of flowing through water conservancy diversion pier can spread along its both wings, reduce the forebay current circle round the zone scope, by rectified action, approach velocity is tending towards evenly before making the pumping plant intake pool, improves water pump water inlet condition, can improve efficiency of pumping station.
The purpose of this utility model is achieved in thatA kind of Y type water conservancy diversion pier for the forebay rectification, comprise inlet culvert and the interior water pump suction pipe that arranges of forebay, intake pool and intake pool that is connected successively with inlet culvert, it is characterized in that, front portion, described forebay is provided with by what three deflectors were formed and is Y type water conservancy diversion pier, the front portion of Y type water conservancy diversion pier be a deflector towards described inlet culvert, the angle of two deflectors behind the Y type water conservancy diversion pier tail is 120 °.
The height of described Y type water conservancy diversion pier is 2/3 of the described forebay depth of water, and the length of water conservancy diversion pier is 1.736 times of described water pump suction pipe diameters.
The interface point of three deflectors of described Y type water conservancy diversion pier to the distance of intake pool is 22.7 times of described water pump suction pipe diameters.
Two deflectors behind the described water conservancy diversion pier tail are provided with some apertures.
The utility model solves the inhomogeneous problem of forward water inlet pumping plant forebay velocity flow profile by Y type water conservancy diversion pier is set, and can significantly improve the forebay fluidised form by add Y type water conservancy diversion pier in the forebay.The Y type that is shaped as of water conservancy diversion pier, along coming flow path direction to arrange that the angle behind the water conservancy diversion pier tail is 120 °, Y type water conservancy diversion pier has shunting effect.When current were flowed through Y type water conservancy diversion pier, because the effect of Y type water conservancy diversion pier both wings, current can separate, and along the diffusion of Y type water conservancy diversion pier subtended angle direction, reduced the circle round scope in zone of forebay current, and cross-sectional flow can redistribute.By the rectified action of Y type water conservancy diversion pier, approach velocity is entering the intake pool precursor in evenly before the pumping plant intake pool.The new application of this practicality can improve efficiency of pumping station about 10% in the pumping plant construction and upgrading, can bring into play huge economic benefit.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is Y type water conservancy diversion pier structure schematic diagram of the present utility model.
Among the figure: 1. inlet culvert, 2.Y type water conservancy diversion pier, 3. forebay, 4. intake pool, 5. water pump suction pipe.
The specific embodiment
As shown in Figure 1 and Figure 2, a kind of Y type water conservancy diversion pier for the forebay rectification, forebay front end, rear end connect inlet culvert and intake pool respectively, and water pump suction pipe places in the intake pool.Arrange on the front floor of forebay by what three deflectors were formed and be Y type water conservancy diversion pier, the front portion of Y type water conservancy diversion pier be a deflector towards described inlet culvert, the angle of two deflectors behind the Y type water conservancy diversion pier tail is 120 °.The height of Y type water conservancy diversion pier is 2/3 of the forebay depth of water, and the length of water conservancy diversion pier is 1.736 times of described water pump suction pipe diameters.The interface point of three deflectors of Y type water conservancy diversion pier to the distance of intake pool is 22.7 times of described water pump suction pipe diameters.When current were flowed through Y type water conservancy diversion pier, because the effect of Y type water conservancy diversion pier both wings, current can separate, and spread along Y type water conservancy diversion pier subtended angle direction; Cross-sectional flow can redistribute.By the rectified action of Y type water conservancy diversion pier, pumping plant intake pool approach velocity is entering the intake pool precursor in evenly.
Y type water conservancy diversion pier can adopt prefabrication system to water earlier on the water conservancy diversion pier and make, and it is arranged on the forebay again and requires the position, also can adopt concrete cast-in-situ water conservancy diversion pier in the forebay.Two deflectors behind water conservancy diversion pier tail are established some apertures, and the differential water pressures with behind the balance water conservancy diversion pier increases its stability.
Claims (4)
1. Y type water conservancy diversion pier that is used for the forebay rectification, comprise inlet culvert and the interior water pump suction pipe that arranges of forebay, intake pool and intake pool that is connected successively with inlet culvert, it is characterized in that, front portion, described forebay is provided with by what three deflectors were formed and is Y type water conservancy diversion pier, the front portion of Y type water conservancy diversion pier be a deflector towards described inlet culvert, the angle of two deflectors behind the Y type water conservancy diversion pier tail is 120 °.
2. a kind of Y type water conservancy diversion pier for the forebay rectification according to claim 1 is characterized in that the height of described Y type water conservancy diversion pier is 2/3 of the described forebay depth of water, and the length of water conservancy diversion pier is 1.736 times of described water pump suction pipe diameters.
3. a kind of Y type water conservancy diversion pier for the forebay rectification according to claim 1 is characterized in that, the interface point of three deflectors of described Y type water conservancy diversion pier to the distance of intake pool is 22.7 times of described water pump suction pipe diameters.
4. a kind of Y type water conservancy diversion pier for the forebay rectification according to claim 1 is characterized in that two deflectors behind the described water conservancy diversion pier tail are provided with some apertures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202229533U CN203222785U (en) | 2013-04-27 | 2013-04-27 | Y-shaped flow guiding pier used for forebay rectification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202229533U CN203222785U (en) | 2013-04-27 | 2013-04-27 | Y-shaped flow guiding pier used for forebay rectification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203222785U true CN203222785U (en) | 2013-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202229533U Expired - Fee Related CN203222785U (en) | 2013-04-27 | 2013-04-27 | Y-shaped flow guiding pier used for forebay rectification |
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| CN (1) | CN203222785U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805809A (en) * | 2015-04-29 | 2015-07-29 | 扬州大学 | Device and method for improving flow pattern of inverted pi-shaped dam of pump station front pond |
| CN104805797A (en) * | 2015-04-29 | 2015-07-29 | 扬州大学 | Device and method for improving flow pattern of inverted T-shaped dam of pump station front pond |
| CN105421283A (en) * | 2015-12-23 | 2016-03-23 | 中国农业大学 | Circulation and water level controllable water inlet pool |
| CN106759833A (en) * | 2016-11-11 | 2017-05-31 | 河海大学 | A kind of combined type fairing for improving urban rainwater pumping plant Inlet flow pattern |
| CN107254866A (en) * | 2017-07-27 | 2017-10-17 | 扬州大学 | A kind of lock station convolution pumping plant rectification combined type control whirlpool facility |
| CN108166462A (en) * | 2018-03-15 | 2018-06-15 | 国家电网公司 | A kind of power station is with hair with pumping inlet/outlet arrangement |
| CN111172937A (en) * | 2020-02-23 | 2020-05-19 | 扬州大学 | T-shaped contact bottom hole structure and comprehensive rectification method thereof |
| GB2579431A (en) * | 2018-11-28 | 2020-06-24 | Univ Yangzhou | Adjustable plate type column for forebay of pumping station |
| CN116122237A (en) * | 2023-01-12 | 2023-05-16 | 珠江水利委员会珠江水利科学研究院 | Flow state adjustment system suitable for power plant circulating water runner |
-
2013
- 2013-04-27 CN CN2013202229533U patent/CN203222785U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805797A (en) * | 2015-04-29 | 2015-07-29 | 扬州大学 | Device and method for improving flow pattern of inverted T-shaped dam of pump station front pond |
| CN104805797B (en) * | 2015-04-29 | 2016-09-28 | 扬州大学 | Forebay of Pumping Station inverted T shape dam fluidised form improves devices and methods therefor |
| CN104805809A (en) * | 2015-04-29 | 2015-07-29 | 扬州大学 | Device and method for improving flow pattern of inverted pi-shaped dam of pump station front pond |
| CN105421283A (en) * | 2015-12-23 | 2016-03-23 | 中国农业大学 | Circulation and water level controllable water inlet pool |
| CN106759833B (en) * | 2016-11-11 | 2018-12-25 | 河海大学 | A kind of combined type fairing improving urban rainwater pumping plant Inlet flow pattern |
| CN106759833A (en) * | 2016-11-11 | 2017-05-31 | 河海大学 | A kind of combined type fairing for improving urban rainwater pumping plant Inlet flow pattern |
| CN107254866A (en) * | 2017-07-27 | 2017-10-17 | 扬州大学 | A kind of lock station convolution pumping plant rectification combined type control whirlpool facility |
| CN108166462A (en) * | 2018-03-15 | 2018-06-15 | 国家电网公司 | A kind of power station is with hair with pumping inlet/outlet arrangement |
| CN108166462B (en) * | 2018-03-15 | 2023-11-14 | 国家电网公司 | Hydropower station concurrent and simultaneous pumping water inlet/outlet arrangement structure |
| GB2579431A (en) * | 2018-11-28 | 2020-06-24 | Univ Yangzhou | Adjustable plate type column for forebay of pumping station |
| GB2579431B (en) * | 2018-11-28 | 2020-12-16 | Univ Yangzhou | Adjustable plate type column for forebay of pumping station |
| CN111172937A (en) * | 2020-02-23 | 2020-05-19 | 扬州大学 | T-shaped contact bottom hole structure and comprehensive rectification method thereof |
| CN116122237A (en) * | 2023-01-12 | 2023-05-16 | 珠江水利委员会珠江水利科学研究院 | Flow state adjustment system suitable for power plant circulating water runner |
| CN116122237B (en) * | 2023-01-12 | 2023-08-18 | 珠江水利委员会珠江水利科学研究院 | Flow state adjustment system suitable for power plant circulating water runner |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20170427 |
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| CF01 | Termination of patent right due to non-payment of annual fee |