CN106013013A - Separation and combination type plant system of through-flow hydropower station - Google Patents
Separation and combination type plant system of through-flow hydropower station Download PDFInfo
- Publication number
- CN106013013A CN106013013A CN201610364575.0A CN201610364575A CN106013013A CN 106013013 A CN106013013 A CN 106013013A CN 201610364575 A CN201610364575 A CN 201610364575A CN 106013013 A CN106013013 A CN 106013013A
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- water
- room
- flood
- pier
- gate
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
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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
Abstract
The invention relates to the technical field of hydropower stations, specifically to a separation and combination type plant system of a through-flow hydropower station. The system adopts the following method steps: (1) a traditional through-flow set and such parts as a generator pier, an electric room, an accessory equipment room and a booster station are partitioned; (2) the through-flow set and the generator pier are placed in a riverway, and a water retaining gate dam is arranged above the through-flow set and the generator pier; and (3) in a power generation water head range, the water retaining gate dam blocks water, and the upper part of a concrete pier of the set is exposed out of the water surface. The system uses the characteristic of underwater operation of a through-flow water turbine generator set to divide a traditional main plant, can combine the set pier, the electric room, the accessory equipment room, the booster station and the like which can be in and out of water, enables all parts to be independent from each other and flexibly arranged, can improve the flood discharging capacity of the through-flow hydropower station, reduces the construction cost, shortens the construction period, and improves the plant stability.
Description
[technical field]
The present invention relates to power station technical field, be specifically related to a kind of tubular power station separate combination type Factory Building
System.
[background technology]
Now, energy situation is nervous.The non-renewable resources such as oil, coal are the most exhausted, and environmental problem is also
Being increasingly subject to everybody pay attention to, the exploitation of clean reproducible energy becomes international topic, water power, wind already
The clean reproducible energy fast developments such as electricity, solar electrical energy generation, and in many regenerative resources, water power
Economy optimum, technical the most ripe.China's waterpower resourses are contained abundant, for the first in the world, but water
The development ability of power resource is the most relative with Exploitation degree backward, according to statistics in 2015, China's waterpower resourses
Exploitation degree is 43%, still has the biggest development space.For medium-small hydropower plants, economic indicator is preferable
High head hydroelectric power plant developed totally, and Low-head Runoff River Hydroelectric Plants has become the main flow of hydroelectric development.
According to Guangdong, Guangxi two province statistics, plant without storage has occupied the 80%～90% of exploitation total amount in recent years.And
In the exploitation of Low-head Runoff River Hydroelectric Plants, tubular power station is with the technology economy advantage (stream of its uniqueness
Road is straight, excavated volume is little, efficiency high) account for the exhausted overwhelming majority.Theory and practice proves, at power station head
During H≤30 meter, answer the tubular power station of prioritizing selection.Therefore, the technology of tubular power station development scheme
Progressive, to alleviating China's energy, the especially nervous situation of clean energy resource, there is important Technological Economy to anticipate
Justice.But, traditional tubular power station exploitation also exists a series of restraining factors, limits it effective
Exploitation.
(1) because being low water head big flow power station, hydraulic turbine diameter is big, and river course is difficult to arrange, usually accounts for
According to bigger river cross-section, affect the flood carrying capacity in river course.
(2) low-head hydroelectric plant often river level luffing is big, and there is higher flood control requirement in some adjacent city.
For meeting these requirements, hydraulic structure cost is high.
(3) for meeting the dash requirement of higher flood control level, power station main building increases, and suffered uplift pressure is big,
Poor stability.
(4) for ensureing the stability of Factory Building, the general arrangement and method for construction using " multimachine one stitches ", this is increased by
The constructional difficulties of prevention of mass concrete.
Above-mentioned all points, cause tubular hydropower investment big, the problem of construction time length.
[summary of the invention]
Present invention aims to defect and the deficiency of prior art, it is provided that a kind of simple in construction, design
Rationally, tubular power station separate combination type Factory Building system easy to use, it utilizes through-flow type hydro-turbo to generate electricity
Unit is inherently immersed in the feature run under water, splits traditional main building, can haunt in water
Unit pier, electrical house, auxiliary device room, booster stations etc. be combined, make each several part separate, spirit
Live and arrange, both can increase the flood carrying capacity in tubular power station, reducing the construction costs again simultaneously, shorten construction
Duration, and improve the stability of Factory Building.
Tubular power station of the present invention separate combination type Factory Building system, the method step that its employing is following:
Step one: by traditional tubular unit and machine pier, electrical house, auxiliary device room, booster stations etc.
Position is split；
Step 2: tubular unit and machine pier are placed in river course, it arranges dash gate dam；
Step 3: in the range of productive head, gear river gate dam dash, unit concrete socle surfaces；
Step 3: during flood period, unit motor-pumped well uses steel deck-plate to seal, and dash gate dam is opened a sluice gate, Factory Building unit
Top drains off floodwater；
Step 4: water electrical-mechanical room, power station, auxiliary device room, booster stations etc. are arranged in the place avoiding flood,
It is connected control by cable between turbine-generator units with electrical equipment room；
Step 5: above draft tube, subsidiary engine gallery arranges the equipment such as speed regulator, technical water supply pump, tail water runner
Layer arranged beneath access gallery and fire water pump chamber；
Step 6: access gallery connects main building and bank electrical house；Arrange Lubricating-oil Station in access gallery, return
The equipment such as fuel tank；Pump house is disposed with seepage drainage pump and drainage for overhaul pump；
Step 7: the crane gear of main building uses the double suspension centre lifting door machine of reversible, electromotor, the hydraulic turbine
Can directly lift by crane, intake of hydropower station gate, flood-relief channel early-stage work gate, flood-relief channel downstream bulkhead gate
Then need to be lifted by crane by overhanging cantilever beam；
Step 8: electromotor manhole cover plate and hydraulic turbine manhole cover plate divide three layers, and the superiors are reinforced concrete structures,
Centre is steel plate structure, and orlop is steel construction；
Step 9: for guaranteeing that crossing water flood discharge above main building motor-pumped well meets seal request, power station main body cloth simultaneously
Being set to submerged structure, the subsidiary engine gallery of draft tube upper and lower and access gallery need to set up air exhaust passage, use machine
The mode that tool ventilates, delivers to well-ventilated place, bank via air exhaust passage；
Step 10: water electrical-mechanical room, power station, auxiliary device room, booster stations etc. are arranged in the place avoiding flood,
It is connected control by cable between turbine-generator units with electrical equipment room.
Further, the water inlet of each generating set in step one arranges one maintenance gate slot, and power station is common
With a fan maintenance door, the portable door machine above unit opened and closed by overhanging cantilever beam；The tail of every unit
At water out, one tail water emergency overhaul gate is set, uses wire rope hoist to open and close.
After using said structure, present invention have the beneficial effect that tubular power station of the present invention discrete group
Box-like Factory Building system, it utilizes bulb-type hydraulic generating set to be inherently immersed in the feature run under water, right
Traditional main building is split, by the unit pier that can haunt in water, electrical house, auxiliary device room, boosting
Stand etc. and to be combined, make each several part separate, flexible arrangement, both can increase the flood discharge in tubular power station
Ability thus eliminate and build too high water retaining structure for resisting flood, reducing the construction costs again simultaneously,
Shorten the construction period, and improve the stability of Factory Building.
[accompanying drawing explanation]
Accompanying drawing described herein is used to provide a further understanding of the present invention, constitutes of the application
Point, but it is not intended that inappropriate limitation of the present invention, in the accompanying drawings:
Fig. 1 is the Factory Building vertical profile structural representation of the present invention；
[detailed description of the invention]
The present invention, illustrative examples therein is described in detail below in conjunction with accompanying drawing and specific embodiment
And explanation is only used for explaining the present invention, but not as a limitation of the invention.
As it is shown in figure 1, the tubular power station separate combination type Factory Building system described in this detailed description of the invention,
The method step that its employing is following:
Step one: by traditional tubular unit and machine pier, electrical house, auxiliary device room, booster stations etc.
Position is split, and makes each position separate and flexible combination is arranged；
Step 2: tubular unit and machine pier are placed in river course, it arranges dash gate dam；
Step 3: in the range of productive head, gear river gate dam dash, unit concrete socle surfaces, electricity
Normal power generation of standing is run；
Step 3: during flood period, unit motor-pumped well uses steel deck-plate to seal, and dash gate dam is opened a sluice gate, Factory Building unit
Top drains off floodwater；
Step 4: water electrical-mechanical room, power station, auxiliary device room, booster stations etc. are arranged in the place avoiding flood,
It is connected control by cable between turbine-generator units with electrical equipment room；
Step 5: above draft tube, subsidiary engine gallery arranges the equipment such as speed regulator, technical water supply pump, tail water runner
Layer arranged beneath access gallery and fire water pump chamber；
Step 6: access gallery connects main building and bank electrical house, is maintenance repair passage, access gallery
The equipment such as interior layout Lubricating-oil Station, oil sump tank, pump house is disposed with seepage drainage pump and drainage for overhaul pump etc.；
Step 7: the crane gear of main building uses the double suspension centre lifting door machine of reversible, electromotor, the hydraulic turbine
Can directly lift by crane, intake of hydropower station gate, flood-relief channel early-stage work gate, flood-relief channel downstream bulkhead gate
Then need to be lifted by crane by overhanging cantilever beam；When the flood discharge of Factory Building top, door machine is parked in garage, bank, is not involved in
The lifting operation of any maintenance；
Step 8: electromotor manhole cover plate and hydraulic turbine manhole cover plate divide three layers, and the superiors are reinforced concrete structures,
Centre is steel plate structure, and orlop is steel construction, but size is less than intermediate layer, reaches close by extending seepage paths
The effect of envelope；
Step 9: for guaranteeing that crossing water flood discharge above main building motor-pumped well meets seal request, power station main body cloth simultaneously
Being set to submerged structure, the subsidiary engine gallery of draft tube upper and lower and access gallery need to set up air exhaust passage, use machine
The mode that tool ventilates, delivers to well-ventilated place, bank via air exhaust passage；
Step 10: water electrical-mechanical room, power station, auxiliary device room, booster stations etc. are arranged in the place avoiding flood,
It is connected control by cable between turbine-generator units with electrical equipment room.
One as the present invention is preferred, and the water inlet of each generating set in step one arranges maintenance together
Gate slot, power station is shared a fan maintenance door, the portable door machine above unit is opened and closed by overhanging cantilever beam；
At the tailrace outlet of every unit, one tail water emergency overhaul gate is set, uses wire rope hoist to open and close.
As shown in Figure 1:
1) clipping room is between main building and ship lock, and the same height of wall led by clipping room floor elevation and spillway, leads
Steel construction temporary bridge is laid, as the access road of Construction and Maintenance on wall.
2) Central Control Room and main transformer station are arranged on clipping room upstream side, and Central Control Room is high-rise same with clipping room high, main transformer
Erect-position is in Central Control Room upper strata, and elevation preferably exceeds check flood level or walled is led in use, and Central Control Room lower floor arranges
There are station-service screen and high pressure screen.
3) main building is divided into three layers, and the superiors are earial drainage layer, opens when whole plate-turning doors and still cannot meet flood discharge
During Capability Requirement, open flood-relief channel bulkhgead gate and start to help flood discharge.The earial drainage base plate in main building district is reinforcing bar
Xoncrete structure, electromotor manhole cover plate and hydraulic turbine manhole cover plate are steel construction, and the earial drainage base plate at remaining position is
Xoncrete structure.It is equipment interlayer, followed by flow channel layer under it.
4) arrange high-low pressure Lubricating-oil Station and leak oil tank below main building flow channel layer in access gallery, fire-fighting, maintenance,
Technical water supply pump.Clipping room lower floor is disposed with unit transformer, excitation-transformation variable, high and low pressure gas tank and low compressor etc.
Equipment.
5) electromotor manhole cover plate and hydraulic turbine manhole cover plate divide three layers, and the superiors are xoncrete structures, and centre is steel
Plate structure, orlop is steel construction, but size is less than intermediate layer, the effect sealed by extending seepage paths to reach.
6) clipping room is provided with traffic stair, and employee can carry out relevant operation by traffic stair into and out of Factory Building.
Additionally being disposed with fire-fighting stairway on the right side of Factory Building, fire-fighting stairway outlet has access bridge to be connected with hoist engine operating room,
Auxiliary power house is entered by hoist engine operating room.
7) gradient excavation of the employing 1: 1 of Factory Building, backfilling material uses sand gravel.Auxiliary power house build base elevation
Exceeding original place upper thread, the part exceeded uses sand gravel backfill.
Advantages of the present invention is as follows:
1) tubular power station separate combination type Factory Building system, it utilizes bulb-type hydraulic generating set inherently
Be immersed in the feature run under water, traditional main building split, by the unit pier that can haunt in water,
Electrical house, auxiliary device room, booster stations etc. are combined, and make each several part separate, and flexible arrangement subtracts
Lacked the dependency to complicated landform, no longer occur because of the narrower layout in river course not under problem.
2) tubular power station separate combination type Factory Building system major-minor Factory Building separates, and structure of main power house reduces, and allows
The construction of main building underwater portion completed to be possibly realized a dry season, and major-minor Factory Building is constructed simultaneously, shortened
Duration and the investment of reduction temporary construction, for north cold area, be an outstanding advantages.
3) tubular power station separate combination type Factory Building system, effective shortening dam and sluice-gate length, Factory Building can
More being arranged on major river bed, water-in and water-out flow shape in power station is more preferable, beneficially unit operation, reduces water
Head loss；Generating set part is positioned at main stem, and control room is positioned on riverbank, and unit allocation is by the electricity of gallery
Cable has connected, and clerical workforce is away from main building hydrogenerator noise pollution.
4) tubular power station separate combination type Factory Building system, Power Plant is without keeping out too high design and school
Core flood, reduces factory building foundation uplift pressure, increases Factory Building security and stability；Unit top all can be helped
Help and drain off floodwater, effectively reduce flood level, reduce engineering and flood investment；Factory Building top was without building
The water retaining structures such as high water-in and water-out gate pier, breastwork, anti-flood wall, additionally need not bear check flood level and produce
Raw uplift pressure, the deadweight of safety and stability can reduce needed for Factory Building, thus reduces construction investment.
The above is only the better embodiment of the present invention, therefore all according to described in present patent application scope
The equivalence that structure, feature and principle are done changes or modifies, in the range of being all included in present patent application.
Claims (1)
- The most tubular power station separate combination type Factory Building system, it is characterised in that the method step that its employing is following:Step one: by traditional tubular unit and machine pier, electrical house, auxiliary device room, booster stations etc. Position is split；Step 2: tubular unit and machine pier are placed in river course, it arranges dash gate dam；Step 3: in the range of productive head, gear river gate dam dash, unit concrete socle surfaces；Step 3: during flood period, unit motor-pumped well uses steel deck-plate to seal, and dash gate dam is opened a sluice gate, Factory Building unit Top drains off floodwater；Step 4: water electrical-mechanical room, power station, auxiliary device room, booster stations etc. are arranged in the place avoiding flood, It is connected control by cable between turbine-generator units with electrical equipment room；Step 5: above draft tube, subsidiary engine gallery arranges the equipment such as speed regulator, technical water supply pump, tail water runner Layer arranged beneath access gallery and fire water pump chamber；Step 6: access gallery connects main building and bank electrical house；Arrange Lubricating-oil Station in access gallery, return The equipment such as fuel tank；Pump house is disposed with seepage drainage pump and drainage for overhaul pump；Step 7: the crane gear of main building uses the double suspension centre lifting door machine of reversible, electromotor, the hydraulic turbine Can directly lift by crane, intake of hydropower station gate, flood-relief channel early-stage work gate, flood-relief channel downstream bulkhead gate Then need to be lifted by crane by overhanging cantilever beam；Step 8: electromotor manhole cover plate and hydraulic turbine manhole cover plate divide three layers, and the superiors are reinforced concrete structures, Centre is steel plate structure, and orlop is steel construction；Step 9: for guaranteeing that crossing water flood discharge above main building motor-pumped well meets seal request, power station main body cloth simultaneously Being set to submerged structure, the subsidiary engine gallery of draft tube upper and lower and access gallery need to set up air exhaust passage, use machine The mode that tool ventilates, delivers to well-ventilated place, bank via air exhaust passage；Step 10: water electrical-mechanical room, power station, auxiliary device room, booster stations etc. are arranged in the place avoiding flood, It is connected control by cable between turbine-generator units with electrical equipment room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610364575.0A CN106013013B (en) | 2016-05-30 | 2016-05-30 | Tubular power station separate combination type factory building system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610364575.0A CN106013013B (en) | 2016-05-30 | 2016-05-30 | Tubular power station separate combination type factory building system |
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| CN106013013A true CN106013013A (en) | 2016-10-12 |
| CN106013013B CN106013013B (en) | 2018-01-02 |
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| CN201610364575.0A Active CN106013013B (en) | 2016-05-30 | 2016-05-30 | Tubular power station separate combination type factory building system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487200A (en) * | 2018-05-04 | 2018-09-04 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of tail water gate pier system for powerhouse of hydropower station |
| CN109371933A (en) * | 2018-11-23 | 2019-02-22 | 中国电建集团成都勘测设计研究院有限公司 | Underground workshop ventilating system |
| CN112878283A (en) * | 2021-01-15 | 2021-06-01 | 中国电建集团成都勘测设计研究院有限公司 | Cable and drainage system for riverbed type workshop dam crest of hydropower station |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4319142A (en) * | 1980-09-25 | 1982-03-09 | Allis-Chalmers Corporation | Power generation unit for spillway gate structures |
| CN102434360A (en) * | 2011-11-16 | 2012-05-02 | 水利部杭州机械设计研究所 | Large-scale vertical shaft through-flow type water turbine power generating set |
| CN203034429U (en) * | 2012-08-01 | 2013-07-03 | 卢江江 | Semi-buried type hydroelectric power house |
-
2016
- 2016-05-30 CN CN201610364575.0A patent/CN106013013B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4319142A (en) * | 1980-09-25 | 1982-03-09 | Allis-Chalmers Corporation | Power generation unit for spillway gate structures |
| CN102434360A (en) * | 2011-11-16 | 2012-05-02 | 水利部杭州机械设计研究所 | Large-scale vertical shaft through-flow type water turbine power generating set |
| CN203034429U (en) * | 2012-08-01 | 2013-07-03 | 卢江江 | Semi-buried type hydroelectric power house |
Non-Patent Citations (2)
| Title |
|---|
| 江树荣等人: "南水北调东线工程金湖站厂房布置研究", 《南水北调与水利科技》 * |
| 符夏碧等人: "灯泡贯流式电站机电设备布置与厂房布置的关系", 《人民珠江》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487200A (en) * | 2018-05-04 | 2018-09-04 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of tail water gate pier system for powerhouse of hydropower station |
| CN108487200B (en) * | 2018-05-04 | 2024-03-19 | 中国电建集团贵阳勘测设计研究院有限公司 | Tail water gate pier system for hydropower house |
| CN109371933A (en) * | 2018-11-23 | 2019-02-22 | 中国电建集团成都勘测设计研究院有限公司 | Underground workshop ventilating system |
| CN109371933B (en) * | 2018-11-23 | 2024-02-27 | 中国电建集团成都勘测设计研究院有限公司 | Underground powerhouse ventilation system of hydropower station |
| CN112878283A (en) * | 2021-01-15 | 2021-06-01 | 中国电建集团成都勘测设计研究院有限公司 | Cable and drainage system for riverbed type workshop dam crest of hydropower station |
| CN112878283B (en) * | 2021-01-15 | 2022-10-04 | 中国电建集团成都勘测设计研究院有限公司 | Cable and drainage system for riverbed type workshop dam crest of hydropower station |
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| CN106013013B (en) | 2018-01-02 |
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Denomination of invention: Separated combined powerhouse system of tubular Hydropower Station Effective date of registration: 20201201 Granted publication date: 20180102 Pledgee: China Co. truction Bank Corp Guangzhou Liwan branch Pledgor: GUANGZHOU ENLAIJI ENERGY SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2020980008694 |
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