CN205742110U - A kind of arrangement improving long diversion system power station unit operational flexibility - Google Patents
A kind of arrangement improving long diversion system power station unit operational flexibility Download PDFInfo
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- CN205742110U CN205742110U CN201620455321.5U CN201620455321U CN205742110U CN 205742110 U CN205742110 U CN 205742110U CN 201620455321 U CN201620455321 U CN 201620455321U CN 205742110 U CN205742110 U CN 205742110U
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- unidirectional
- power station
- diversion
- system power
- surge
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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
This utility model relates to a kind of arrangement improving long diversion system power station unit operational flexibility.The purpose of this utility model is to provide the arrangement that a kind of simple in construction, easy construction, investment relatively save and can improve again long diversion system power station unit operational flexibility, conscientiously long diversion system unit operation limited flexibility problem, preferably service engineering construction are solved.The technical solution of the utility model is: a kind of arrangement improving long diversion system power station unit operational flexibility, there is diversion tunnel and generating set, surge-chamber it is provided with between diversion tunnel and generating set, it is characterized in that: near surge-chamber and the side of diversion tunnel arranges unidirectional surge tank, unidirectional surge tank is connected by connecting tube with diversion tunnel, and the position corresponding to connecting tube in one-way pressure-regulating bottom arranges unidirectional plain batton door.This utility model is applicable to Hydraulic and Hydro-Power Engineering.
Description
Technical field
This utility model relates to a kind of arrangement improving long diversion system power station unit operational flexibility, it is adaptable to Hydraulic and Hydro-Power Engineering.
Background technology
The water-carriage system that some diversion tunnels are longer, by arranging the surge-chamber internal water pressure value with reduction diversion tunnel at diversion tunnel afterbody, reduces tunnel pressure-bearing and improves unit operation quality.Unit start or removal of load after through self-inspection errorless be again started up band at full capacity time, surge-chamber water level decreasing is to lowest water level, this lowest water level must be higher than tunnel cope level, otherwise surge-chamber draws sky, air enters in tunnel, tunnel and unit operation bring serious adverse effect, this phenomenon specification prohibite；Owing to tunnel length is longer, under this operating mode, in surge-chamber, lowest water level can not meet the requirement higher than tunnel top, just allowing the measures such as start once again to solve after spending the long period after can only taking to limit the time of start, the speed of application of load, load rejection, the motility of unit operation is very limited.
For solving the problems referred to above, can take to set up the measure such as lower room or surge-chamber entirety increasing.Wherein, set up lower room higher to geological conditions requirement and exist run at present indoor gas discharge difficulty etc. situation, this kind of pattern seldom uses in engineering at present, if but by surge-chamber entirety strengthen, construction investment can be significantly increased.
Summary of the invention
The technical problems to be solved in the utility model is: for the problem of above-mentioned existence, there is provided a kind of simple in construction, easy construction, investment relatively to save and the arrangement of long diversion system power station unit operational flexibility can be improved again, conscientiously long diversion system unit operation limited flexibility problem, preferably service engineering construction are solved.
This utility model be the technical scheme is that a kind of arrangement improving long diversion system power station unit operational flexibility, there is diversion tunnel and generating set, surge-chamber it is provided with between diversion tunnel and generating set, it is characterized in that: near surge-chamber and the side of diversion tunnel arranges unidirectional surge tank, unidirectional surge tank is connected by connecting tube with diversion tunnel, and the position corresponding to connecting tube in one-way pressure-regulating bottom arranges unidirectional plain batton door.When with unidirectional well connecting portion tunnel hydraulic pressure less than hydraulic pressure in unidirectional well, plain batton door automatically turns on, moisturizing in tunnel, it is to avoid surge shaft draws sky.When with unidirectional well connecting portion tunnel hydraulic pressure higher than hydraulic pressure in unidirectional well, plain batton door is automatically switched off under the effect of pressure reduction.
Between described connecting tube and unidirectional plain batton door, waterstop sealing is set.
The beneficial effects of the utility model are: this utility model simple in construction, easy construction, construction investment relatively save, it is possible to conscientiously improve the motility that long diversion system power station unit runs；By arranging unidirectional plain batton door in unidirectional bottom, this utility model guarantees that current flow to diversion tunnel in well, tunnel is carried out moisturizing and does not allow reverse flow, thus both achieved the function of room under surge-chamber, again owing to not allowing reverse flow to reduce the scale of unidirectional well, save investment.
Accompanying drawing explanation
Fig. 1 is site plan of the present utility model.
Detailed description of the invention
As shown in Figure 1, the present embodiment is a kind of arrangement improving long diversion system power station unit operational flexibility, there is diversion tunnel 5 and generating set, surge-chamber 1 it is provided with between diversion tunnel 5 and generating set, near surge-chamber 1, the side of diversion tunnel 5 arranges unidirectional surge tank 2, it is connected by connecting tube 4 between unidirectional surge tank with diversion tunnel, bottom unidirectional surge tank 2, the position corresponding to connecting tube 4 arranges unidirectional plain batton door 3, between unidirectional plain batton door 3 and connecting tube 4, waterstop sealing is set, and the operation of plain batton door fully relies on pressure reduction and is controlled, need not extra-pay.
In the present embodiment, surge-chamber 1 cross dimensions determines according to the requirement of Surge Chamber, arranging a unidirectional surge tank 2 near surge-chamber 1, the scale of unidirectional well is determined according to increasing load, multimachine startup simultaneously etc. after unit operation motility especially removal of load situation is unrestricted.Guarantee that current flow to diversion tunnel in well by arranging a unidirectional plain batton door 3 bottom unidirectional surge tank 2, tunnel is carried out moisturizing and does not allow reverse flow, thus both realized the function of 1 time room of surge-chamber, again owing to not allowing reverse flow to reduce the scale of unidirectional well, save investment.
Certainly, described above is not limitation of the utility model, and this utility model is also not limited to the example above; those skilled in the art; in the range of this utility model, the change made, change interpolation or replace, all should belong to protection domain of the present utility model.
Claims (2)
1. the arrangement improving long diversion system power station unit operational flexibility, there is diversion tunnel (5) and generating set, surge-chamber (1) it is provided with between diversion tunnel and generating set, it is characterized in that: near surge-chamber (1) and the side of diversion tunnel (5) arranges unidirectional surge tank (2), unidirectional surge tank is connected by connecting tube (4) with diversion tunnel, and in unidirectional surge tank (2) bottom, the position corresponding to connecting tube (4) arranges unidirectional plain batton door (3).
The arrangement of raising the most according to claim 1 long diversion system power station unit operational flexibility, it is characterised in that: between described connecting tube (4) and unidirectional plain batton door (3), waterstop sealing is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620455321.5U CN205742110U (en) | 2016-05-18 | 2016-05-18 | A kind of arrangement improving long diversion system power station unit operational flexibility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620455321.5U CN205742110U (en) | 2016-05-18 | 2016-05-18 | A kind of arrangement improving long diversion system power station unit operational flexibility |
Publications (1)
| Publication Number | Publication Date |
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| CN205742110U true CN205742110U (en) | 2016-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201620455321.5U Active CN205742110U (en) | 2016-05-18 | 2016-05-18 | A kind of arrangement improving long diversion system power station unit operational flexibility |
Country Status (1)
| Country | Link |
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| CN (1) | CN205742110U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366266A (en) * | 2017-09-12 | 2017-11-21 | 中水北方勘测设计研究有限责任公司 | Water hammer pressure structure is prevented for the long diversion system of middle low water head |
| CN108331068A (en) * | 2018-01-23 | 2018-07-27 | 北京国岩华北技术检测有限公司 | PCCP water delivery water pumping systems double over long distances |
| CN111395281A (en) * | 2020-03-20 | 2020-07-10 | 南方电网调峰调频发电有限公司 | Impedance hole connection structure of hydropower engineering dual-machine shared surge shaft |
-
2016
- 2016-05-18 CN CN201620455321.5U patent/CN205742110U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366266A (en) * | 2017-09-12 | 2017-11-21 | 中水北方勘测设计研究有限责任公司 | Water hammer pressure structure is prevented for the long diversion system of middle low water head |
| CN108331068A (en) * | 2018-01-23 | 2018-07-27 | 北京国岩华北技术检测有限公司 | PCCP water delivery water pumping systems double over long distances |
| CN108331068B (en) * | 2018-01-23 | 2024-03-01 | 国岩华北工程技术(北京)有限公司 | Long-distance double PCCP water delivery and lifting system |
| CN111395281A (en) * | 2020-03-20 | 2020-07-10 | 南方电网调峰调频发电有限公司 | Impedance hole connection structure of hydropower engineering dual-machine shared surge shaft |
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