CN202247819U - Water inlet sediment releasing structure for hydropower station - Google Patents
Water inlet sediment releasing structure for hydropower station Download PDFInfo
- Publication number
- CN202247819U CN202247819U CN2011203276072U CN201120327607U CN202247819U CN 202247819 U CN202247819 U CN 202247819U CN 2011203276072 U CN2011203276072 U CN 2011203276072U CN 201120327607 U CN201120327607 U CN 201120327607U CN 202247819 U CN202247819 U CN 202247819U
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- water inlet
- water
- sediment
- building
- power station
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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 relates to a water inlet sediment releasing structure for a hydropower station. According to the utility model, the purpose is to provide a inlet sediment releasing structure for the hydropower station, which has simple structure and is convenient and fast to release sediments. Without power station reservoir clearing or stopping operation, the sediment can be stilled released so as to improve the water fetching safety of the power station and the flexibility in the operation of the power station and ensure the benefits of the power station or the reservoir. According to the utility model, the technical scheme is as follows: the water inlet sediment releasing structure for the hydropower station comprises a water inlet building, wherein a water drainage tunnel is formed at the downstream end of the water inlet building; the water inlet sediment releasing structure for the hydropower station is characterized in that a high pressure water pipeline is arranged within the water inlet building; a water inlet end of the high pressure water pipeline is connected with an external water feeding and draining system; and a water outlet end of the high pressure water pipeline is aligned with suspended sediments deposited at the inlet of the water inlet building. The water inlet sediment releasing structure for the hydropower station, provided by the utility model, is suitable for hydropower stations with requirements on sediment treatment.
Description
Technical field
The utility model relates to a kind of Hydropowerstation water inlet sand-discharging structure, is mainly used in the power station of silt processing requirements.
Background technology
In the hydroelectric project that the silt processing requirements is arranged, several kinds of modes below main the employing are handled in the control of water inlet silt: 1, through the layout of building, arrange rational tank silt volume, guarantee that in the power station silt elevation is lower than the water inlet elevation in the runtime; 2, through water inlet with the mode of power station outlet structure escape works arranged adjacent, the washing away of current when utilizing the sluicing flood passage, the discharging cleaning that pulling function is carried out water inlet leading edge shoal materials; 3, utilize the husky building of special row (Pai Shadong, flush gallery, bottom hole for sand flushing etc.) to arrange sand; 4, rationally utilize the runner design of power station water inlet and water diverting structure,, allowed the discharging of machine silt (referring generally to suspended load) through the washing away, spur of diversion and power current.
But; Because factors such as the limitation of the layout of intake structure, the complexity of flow-shape and flow rate of water flow skewness; Often cause the part of water intaking building to have unstable fluidised form or even dead stream district; And then form the alluvial of suspended sediment, influence the water intaking safety and the power benefit in power station.At present, adopt the mode of artificial desilting under the situation that the processing of above-mentioned alluvial situation is generally shut down in reservoir emptying or power station, not only time-consuming but also effort influences the benefit and the operational flexibility of power station or reservoir.
Summary of the invention
The technical problem that the utility model will solve is: to the problem of above-mentioned existence conveniently Hydropowerstation water inlet sand-discharging structure of a kind of simple in structure, row's sand is provided; Under the situation of clear storehouse or shutdown, still can arrange sand without the power station; With the water intaking safety in raising power station and the flexibility of power station operation, guarantee the benefit of power station or reservoir.
The technical scheme that the utility model adopted is: the Hydropowerstation water inlet sand-discharging structure; Comprise the water inlet building; Its downstream is provided with diversion tunnel; It is characterized in that: said water inlet interior of building is provided with the water under high pressure pipeline, and the water inlet end of this water under high pressure pipeline connects outside supply and drain water system, and the suspended sediment that deposits in place, water inlet building entrance is aimed in the water side.
The beneficial effect of the utility model is: the utility model is provided with the water under high pressure pipeline in the water inlet building; The water inlet end of this water under high pressure pipeline connects outside supply and drain water system; The suspended sediment that deposits in place, water inlet building entrance is aimed in the water side; Under the situation of clear storehouse or shutdown without the power station, inject the high flow condition that High-Pressure Water forms water inlet suspended sediment alluvial position through outside supply and drain water system, make the suspended sediment of alluvial start by inactive state; Simultaneously under the induced effect of generating current; Suspended sediment (allowing machine) is brought into diversion and power system tunnel (or water-conveyance tunnel) and carried out the drainage of silt through its runner, thereby improved the water intaking safety in power station and the flexibility of power station operation greatly, increased the benefit of power station or reservoir.
Description of drawings
Fig. 1 is the elevation of the utility model.
Fig. 2 is that the B-B of Fig. 1 is to sectional view.
Fig. 3 is that the C-C of Fig. 1 is to sectional view.
The specific embodiment
Like Fig. 1-shown in Figure 3; The experience that present embodiment combines western hydroelectric project silt control to handle; At existing water inlet building 2 (its downstream is provided with diversion tunnel 4) set inside water under high pressure pipeline 3; The water inlet end of this water under high pressure pipeline connects outside supply and drain water system, is used to provide high pressure, high-velocity flow, and the water side is aimed at and deposited in the suspended sediment 1 of water inlet building 2 entrance; High pressure, high-velocity flow are delivered to suspended sediment 1 position through water under high pressure pipeline 3; And utilize the percussion of current that the suspended sediment 1 that deposits is started by inactive state; Simultaneously under the induced effect of generating current, suspended sediment 1 (allowing machine) is brought into diversion tunnel 4 (or water-conveyance tunnel) and carried out the drainage of silt through its runner.The husky process of whole row is the influence of dependent station and reservoir state not, and is also can the row of realization husky promptly under the situation of clear storehouse or shutdown without the power station, thereby the flexibility that the water intaking safety that has improved the power station greatly and power station are moved has increased the benefit of power station or reservoir.
In this example; Said supply and drain water system is positioned at water inlet building 2 tops; External high pressure current (being provided by external high service system) get in the water under high pressure pipeline 3 through supply and drain water system; Provide required discharge pressure in the mouth of a river and flow velocity, discharge pressure and flow velocity should guarantee that the impact force that current produce can make suspended sediment 1 be moved.
Claims (1)
1. Hydropowerstation water inlet sand-discharging structure; Comprise water inlet building (2); Its downstream is provided with diversion tunnel (4); It is characterized in that: said water inlet building (2) set inside water under high pressure pipeline (3), the water inlet end of this water under high pressure pipeline connects outside supply and drain water system, and the water side is aimed at and is deposited in the suspended sediment (1) of water inlet building (2) entrance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203276072U CN202247819U (en) | 2011-09-02 | 2011-09-02 | Water inlet sediment releasing structure for hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203276072U CN202247819U (en) | 2011-09-02 | 2011-09-02 | Water inlet sediment releasing structure for hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202247819U true CN202247819U (en) | 2012-05-30 |
Family
ID=46109081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203276072U Expired - Lifetime CN202247819U (en) | 2011-09-02 | 2011-09-02 | Water inlet sediment releasing structure for hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202247819U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775406A (en) * | 2015-03-18 | 2015-07-15 | 杭州金培科技有限公司 | Door back desilting structure for pressure tunnel overhaul access door |
| CN112647466A (en) * | 2020-12-16 | 2021-04-13 | 长江勘测规划设计研究有限责任公司 | Sediment management method suitable for sandy river hydropower station |
-
2011
- 2011-09-02 CN CN2011203276072U patent/CN202247819U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775406A (en) * | 2015-03-18 | 2015-07-15 | 杭州金培科技有限公司 | Door back desilting structure for pressure tunnel overhaul access door |
| CN112647466A (en) * | 2020-12-16 | 2021-04-13 | 长江勘测规划设计研究有限责任公司 | Sediment management method suitable for sandy river hydropower station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HYDROCHINA INTERNATIONAL ENGINEERING CO., LTD. Free format text: FORMER OWNER: EAST CHINA SURVEY AND DESIGN INST., CHINA HYDROPOWER CONSULTING GROUP Effective date: 20140521 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 310014 HANGZHOU, ZHEJIANG PROVINCE TO: 100120 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140521 Address after: 100120, Beijing, Xicheng District, six paved Kang north side Street No. 2-1, No. six, shop 3, 2, Kang 5 Patentee after: HYDROCHINA INTERNATIONAL ENGINEERING CO., LTD. Address before: 310014 Hangzhou city in the lower reaches of the city of Zhejiang Wang Road, No. 22 Patentee before: East China Hydroelectric Investigation & Design Institute, China Hydropower Consulting Group |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |