CN203768882U - Water diversion system for long distance diversion-type hydropower station in severe cold area - Google Patents
Water diversion system for long distance diversion-type hydropower station in severe cold area Download PDFInfo
- Publication number
- CN203768882U CN203768882U CN201420163964.3U CN201420163964U CN203768882U CN 203768882 U CN203768882 U CN 203768882U CN 201420163964 U CN201420163964 U CN 201420163964U CN 203768882 U CN203768882 U CN 203768882U
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- China
- Prior art keywords
- water
- gate
- diversion
- channel
- water diversion
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- Expired - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000005465 channeling Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000001363 water suppression through gradient tailored excitation Methods 0.000 description 1
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
Landscapes
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The utility model discloses a water diversion system for a long distance diversion-type hydropower station in a severe cold area. The water diversion system comprises a water diversion gate which is arranged on the frontmost portion of a water diversion channel and used for collecting water from a reservoir, a water inlet gate which is used for leading channel water into a generator set for generating electricity, a bottom hole gate which is used for draining the waste water except electricity generation water into a downstream river channel, and a flood discharge bottom hole. A plurality of damming gates which have the function of water-level control and the function of ice cover stability maintenance are arranged between the water diversion gate and the water inlet gate according to certain intervals. The space between the water diversion gate and the adjacent damming gate, the space between every two adjacent damming gates, and the space between the water inlet gate and the adjacent damming gate are all 4-6 km. When the water diversion system is used in winter, an ice cover is formed on the water diversion channel of the hydropower station, electricity generation water flow is conveyed under the ice cover, and the water flow directly flows to a hydropower station front pool and enters the generator set. According to the water diversion system, the damming gates are arranged on the water diversion channel, icing cover operation of the channel is achieved, compared with a traditional ice conveying operation mode, water used for ice discharging is saved, more diversion water can be used for generating electricity, the utilization rate of water power is improved, and the economic benefits of the hydropower station are increased.
Description
Technical field
The utility model relates to a kind of diversion system, specifically, is the diversion system in long distance water diversion formula power station, a kind of severe cold area.
Background technology
The diversion system in long distance water diversion formula power station generally include be arranged in the top water-drawing gate from reservoir water intaking of water-drawing channel, by channel water introduce the intake gate of generating set generating, by bottom gate and the flood discharge bottom outlet that water leaks into downstream river course of abandoning meeting beyond generating water.Because the distance between water-drawing gate and intake gate is very long, water just can flow to generating set through long time in channel, and water surface directly contacts with cold air for a long time, affected by temperature very large.In severe cold area, in the water-drawing channel in water channeling type power station, will freeze, ice enters the wearing and tearing that the hydraulic turbine can be accelerated the hydraulic turbine.When serious, a large amount of ice cubes can stop up water inlet, cause diversion difficulty, and unit, by forced-stopping machine, also can lead to a disaster not in time if processed.
Impact for fear of ice cube on generating, traditional method is to take to sacrifice a part of water yield ice cube is discharged to Channel of Downstream.In the winter time, originally river course come the water yield just less, add the part water yield and be used to arrange ice, this certainly will cause the water yield for generating electricity to reduce, thereby reduces the generated energy in power station, reduces its power benefit.
Utility model content
Technical problem to be solved in the utility model is, a kind of channel lid operation of freezing that realizes is provided, and can make the diversion system for severe cold area long distance water diversion formula power station of more diversion for generating electricity.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of diversion system for long distance water diversion formula power station, severe cold area, comprise be arranged in the top water-drawing gate from reservoir water intaking of water-drawing channel, by channel water introduce the intake gate of generating set generating, by bottom gate and the flood discharge bottom outlet that water leaks into downstream river course of abandoning meeting beyond generating water, on the water-drawing channel between water-drawing gate and intake gate according to a plurality of locks of choking water of controlling water level, maintaining ice sheet stabilization that play of certain pitch arrangement.
Described water-drawing gate and the adjacent spacing between lock, adjacent two of choking water are choked water spacing between lock, intake gate and the adjacent spacing of choking water between lock is 4～6km.
Described two adjacent spacing of choking water between lock are identical.
The beneficial effects of the utility model are: during cold-weather operation, can on water-drawing channel, form ice sheet, generating current are carried under ice sheet, flow directly to forebay generating, more traditional defeated ice method of operation has been saved row's ice water, can make more water for generating, improve the utilization rate of water energy, increase the economic benefit in power station.
Accompanying drawing explanation
Fig. 1 is the diversion system structural representation for long distance water diversion formula power station, severe cold area of the present utility model;
Fig. 2 is the elevation of choking water lock.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
As shown in Figure 1, 2, the utility model is for the diversion system in long distance water diversion formula power station, severe cold area, and water-drawing gate 1 is arranged in power station water-drawing channel 8 foremost, adjusts the size of diversion flow by the aperture of headstock gear 16 regulating gates 15, control diversion flow, keep ice face in channel to stablize.
Intake gate 3 is arranged in power station water inlet, introduces the flow that generating set needs, and by headstock gear 26 closed shutters 25, blocks flow, for generator and hydraulic turbine maintenance.
Earial drainage bottom outlet 4 is also arranged in power station water inlet, and by headstock gear 26, regulates the aperture of bottom gate 7, and the water of abandoning meeting outside generating set water is leaked into Channel of Downstream.
A plurality of locks 2 of choking water are arranged on water-drawing channel 8 uniformly, and water-drawing gate 1 and the adjacent spacing between lock 2, adjacent two of choking water are choked water spacing between lock, intake gate 3 and the adjacent its spacing between lock 2 of choking water is 4～6km.By the aperture of headstock gear 6 regulating gates 5, make canal water depth stable.
Described water-drawing gate 1 is arranged in water-drawing channel 8 foremost, in the winter time by the aperture of headstock gear 16 regulating gates 15, controls diversion flow, keeps ice face in channel to stablize.
Described many structural configuration of choking water lock 2 are identical, and its headstock gear 6 is slow-motion hoist, and the lifting precision that makes gate 5 is Centimeter Level.
The bottom gate 7 of described earial drainage bottom outlet 4, regulates by headstock gear 26, controls its aperture, regulates letdown flow, maintains the stable of ice sheet.
Above-mentioned headstock gear is slow-motion hoist, can realize the fine setting of gatage.
When described system is used in the winter time, from back to front, the every 5cm of aperture is one grade to its many opening sequences of choking water lock 2, after the interior depth of water of water-drawing channel 8 is stable, carries out the operation of next stage again.
The building of described system and equipment will carry out combined dispatching trial run after construction, check water-drawing gate 1, choke water the headstock gear operating condition of lock 2, intake gate 3 and earial drainage bottom outlet 4, check the control accuracy of control appliance, make system call safety, stable, after acceptance(check), can come into operation.
Below use procedure of the present utility model is described:
1, owned building and equipment, after construction completes, all pass through field adjustable, after acceptance(check), can come into operation.
2,, after these system and device Installation and Debugging complete, daily mean temperature was stabilized in 0 and came into operation when following local winter.
3, in using, the opening speed of strict regulating gate, every grade of falling head is controlled at and is less than 5cm.After channel stable level, carrying out next stage operation;
4, in using, strengthen observing the variation of ice face in water-drawing channel, adjust in time the aperture of gate, make ice sheet stable.
5, temperature raises and channel freezes after thawing, chokes water the utilization of lock in can halt system.
6, after stopping using, stop up water gate and all leave the water, overhaul, safeguard, when arrive winter, again come into operation.
Certain water channeling type power station, channel length 25km, channel bottom width is 4m, and side slope is 1:1.75, and at the bottom of canal, longitudinal gradient 1/2500, on channel, arranges and chokes water 4, lock, and the distance between adjacent lock is 5km.
Winter is during system employs, channel water diversion 20m3/s, and canal water depth is stabilized in 5.20m, and canal cross section Buddhist is less than 0.1 as total, and mean velocity in section is less than 0.5m/s.
From the situation of cold-weather operation, monthly average generated energy is 2.3 times of traditional defeated ice method of operation, remarkable in economical benefits.
Above-described embodiment is only for illustrating technological thought of the present utility model and feature, its object is to make those skilled in the art can understand content of the present utility model and implement according to this, can not only with the present embodiment, limit the scope of the claims of the present utility model, be equal variation or the modification that spirit that all the utility model disclose is done, still drop in the scope of the claims of the present utility model.
Claims (3)
1. the diversion system for long distance water diversion formula power station, severe cold area, comprise be arranged in the top water-drawing gate (1) from reservoir water intaking of water-drawing channel, by channel water introduce the intake gate (3) of generating set generating, by bottom gate (7) and the flood discharge bottom outlet (4) that water leaks into downstream river course of abandoning meeting beyond generating water, it is characterized in that, water-drawing channel (8) between water-drawing gate (1) and intake gate (3) upper according to certain pitch arrangement a plurality of play control water level, maintain ice sheet stabilization choke water lock (2).
2. the diversion system for long distance water diversion formula power station, severe cold area according to claim 1, it is characterized in that, described water-drawing gate (1) and the adjacent spacing between lock (2), adjacent two of choking water are choked water spacing between lock (2), intake gate (3) and the adjacent spacing of choking water between lock (2) is 4～6km.
3. the diversion system for long distance water diversion formula power station, severe cold area according to claim 1, is characterized in that, described two adjacent spacing of choking water between lock (2) are identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420163964.3U CN203768882U (en) | 2014-04-04 | 2014-04-04 | Water diversion system for long distance diversion-type hydropower station in severe cold area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420163964.3U CN203768882U (en) | 2014-04-04 | 2014-04-04 | Water diversion system for long distance diversion-type hydropower station in severe cold area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203768882U true CN203768882U (en) | 2014-08-13 |
Family
ID=51286089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420163964.3U Expired - Lifetime CN203768882U (en) | 2014-04-04 | 2014-04-04 | Water diversion system for long distance diversion-type hydropower station in severe cold area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203768882U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103898883A (en) * | 2014-04-04 | 2014-07-02 | 中水北方勘测设计研究有限责任公司 | Water diversion system for long-distance water diversion type hydropower station in severe cold region |
| CN109629521A (en) * | 2019-01-22 | 2019-04-16 | 天津大学 | A kind of artificial flexible heat-insulating ice sheet device |
-
2014
- 2014-04-04 CN CN201420163964.3U patent/CN203768882U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103898883A (en) * | 2014-04-04 | 2014-07-02 | 中水北方勘测设计研究有限责任公司 | Water diversion system for long-distance water diversion type hydropower station in severe cold region |
| CN109629521A (en) * | 2019-01-22 | 2019-04-16 | 天津大学 | A kind of artificial flexible heat-insulating ice sheet device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xi Yanlin Inventor after: Ren Tang Inventor after: Sun Bo Inventor after: Lin Yuandan Inventor after: Liu Wanxin Inventor after: Ma Xixiang Inventor after: Zhang Xiusong Inventor after: Bai Suping Inventor after: Wu Shuai Inventor after: Zhu Tao Inventor after: Fan Ruipeng Inventor before: Liu Wanxin Inventor before: Sun Bo Inventor before: Lin Yuandan Inventor before: Ma Xixiang Inventor before: Zhang Xiusong Inventor before: Bai Suping Inventor before: Wu Shuai Inventor before: Zhu Tao Inventor before: Fan Ruipeng Inventor before: Ren Tang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIU WANXIN LIN YUANDAN MA XIXIANG ZHANG XIUSONG BAI SUPING WU SHUAI ZHU TAO FAN RUIPENG REN TANG SUN BO TO: XI YANLIN LIN YUANDAN LIU WANXIN MA XIXIANG ZHANG XIUSONG BAI SUPING WU SHUAI ZHU TAO FAN RUIPENG REN TANG SUN BO |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |