CN202401437U - Technical water supply system of water turbine generator set of hydropower station for silt-laden river - Google Patents

Technical water supply system of water turbine generator set of hydropower station for silt-laden river Download PDF

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Publication number
CN202401437U
CN202401437U CN2012200038965U CN201220003896U CN202401437U CN 202401437 U CN202401437 U CN 202401437U CN 2012200038965 U CN2012200038965 U CN 2012200038965U CN 201220003896 U CN201220003896 U CN 201220003896U CN 202401437 U CN202401437 U CN 202401437U
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CN
China
Prior art keywords
water
communicated
electrically
controlled valve
pipeline
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2012200038965U
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Chinese (zh)
Inventor
朱兴旺
郑莉玲
郭连生
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Yellow River Engineering Consulting Co Ltd
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Yellow River Engineering Consulting Co Ltd
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Priority to CN2012200038965U priority Critical patent/CN202401437U/en
Application granted granted Critical
Publication of CN202401437U publication Critical patent/CN202401437U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

Abstract

The utility model discloses a technical water supply system of a water turbine generator set of a hydropower station for a silt-laden river. The technical water supply system comprises the water turbine generator set, wherein one channel of cooling water inlets of the water turbine generator set is communicated with a dam front water outlet through an electric control valve and a forward and backward flushing switching valve group unit, and the other channel of cooling water inlets is communicated with a water outlet of a clean water reservoir through the electric control valve; the water outlet of the clean water reservoir is communicated with an underground water source pump station through the electric control valve; a water return hole of the clean water reservoir is communicated with a water return pump station through the electric control valve; and one channel of cooling water outlets of the water turbine generator set is communicated with a tail water pipe of the hydropower station through the forward and backward flushing switching valve group unit, and the other channel of cooling water outlets is communicated with the water return pump station through the electric control valve. The technical water supply system of the water turbine generator set of the hydropower station for the silt-laden river has the advantages that on the premise of ensuring the cooling water supply safety of the water turbine generator set, engineering investment and operation cost are saved to the greatest extent.

Description

Fully-loaded stream power station hydraulic generator unit technical water supply system
Technical field
The utility model relates to the Hydropower Plant technical water supply system, especially relates to fully-loaded stream power station hydraulic generator unit technical water supply system.
Background technology
The design of Hydropower Plant technical water supply system is directly connected to the safety of unit operation, and the design scheme of fully-loaded stream power station technical water supply system fails well to solve for a long time.Water supply scheme and the cyclone water supply scheme that removes sand all has utilization in disparity items though jet pump water supply scheme, gravity flow decompression water supply scheme, sand trap remove sand; But the power station project big for the unit water supply volume, that sediment charge is higher, above-mentioned several kinds of design schemes all are difficult to engineering demands.
Summary of the invention
The utility model purpose is to provide a kind of power station water wheels unit technical water supply system of hyper-concentration flow utilization, under the prerequisite of guaranteeing water supply security, practices thrift construction investment and operating cost to greatest extent.
For realizing above-mentioned purpose, the utility model can be taked following technical proposals:
The described fully-loaded stream of the utility model power station hydraulic generator unit technical water supply system comprises the hydraulic generator unit; The cooling water intake of said hydraulic generator unit lead up to electrically-controlled valve and positive and negative before transfer valve group unit and the dam intake be connected, another road is communicated with the clear water reserviors delivery port through electrically-controlled valve; Said clear water reserviors water inlet is communicated with the underground water source pumping plant through electrically-controlled valve, and the clear water reserviors water return outlet is communicated with the backwater pumping plant through electrically-controlled valve; The cooling water outlet of hydraulic generator unit is leaded up to said positive and negatively be communicated with the draft tube in power station towards transfer valve group unit, and another road is communicated with the backwater pumping plant through electrically-controlled valve.
Saidly positive and negatively constitute by the series connection of the first valve group and the second valve group towards transfer valve group unit; The said first valve group is made up of two parallel branches and two electrically-controlled valve and a water strainer of being arranged on each branch road; The ring-type branch road that the said second valve group is made up of four electrically-controlled valve and the pipeline of mutual series connection; The pipeline that is communicated with first, second electrically-controlled valve is communicated with the cooling water outlet of hydraulic generator unit through pipeline, and the pipeline that is communicated with the 3rd, the 4th electrically-controlled valve is communicated with the cooling water intake of hydraulic generator unit through pipeline and electrically-controlled valve.
The pipeline that is communicated with second, third electrically-controlled valve of the said second valve group is communicated with the draft tube in power station through pipeline; The outlet of the 4th electrically-controlled valve of the second valve group is connected through electrically-controlled valve and storehouse water water supply contact main.
The utility model advantage is under the prerequisite of guaranteeing hydraulic generator unit cooling water supply security, to practice thrift construction investment and operating cost to greatest extent.Native system takes to mix the design scheme that water supply, part clear water recycle.Adopt the reservoir water intaking to supply with hydraulic generator unit cooler when river is clear in non-flood season, and flood season sand content in river water high, when water quality is relatively poor, adopt underground water source pumping plant groundwater abstraction to supply with hydraulic generator unit cooler; The stifled phenomenon of issuable what when preventing the operation of each cooler of hydraulic generator unit saidly positive and negatively adopts forward and reverse method of operation towards transfer valve group unit to each cooler of unit through regulating; Be using water wisely; Water after the unit cooler absorbs heat is except that a part is directly drained through the draft tube in power station; Remainder drains into the backwater pumping plant, is pumped up water to clear water reserviors by back water pump, and clear water and backwater carry out resupplying unit after the interchange of heat and recycle in clear water reserviors.What of backwater amount are relevant with the clear water temperature, need to confirm through calculating, and generally can account for the 1/3-1/2 of unit total water amount.
Description of drawings
Fig. 1 is the structural representation of the said system of the utility model.
The specific embodiment
As shown in Figure 1, the described fully-loaded stream of the utility model power station hydraulic generator unit technical water supply system comprises hydraulic generator unit 1; The cooler cooling water intake 2 of said hydraulic generator unit 1 lead up to electrically-controlled valve and positive and negative before transfer valve group unit 3 and the dam, reservoir area intake 4 be connected, another road is connected with clear water reserviors 5 delivery ports 6 through electrically-controlled valve; The water inlet 7 of said clear water reserviors 5 is communicated with underground water source pumping plant 8 through electrically-controlled valve, and clear water reserviors 5 water return outlets 9 are communicated with backwater pumping plant 10 through electrically-controlled valve; The cooler cooling water outlet 11 of hydraulic generator unit 1 is leaded up to said positive and negatively be communicated with the draft tube 12 in power station towards transfer valve group unit 3, and another road is communicated with backwater pumping plant 10 through electrically-controlled valve.Saidly positive and negatively constitute by the first valve group 13 and the series connection of the second valve group 14 towards transfer valve group unit 3; The said first valve group 13 is made up of two parallel pipeline branch roads and two electrically-controlled valve and a water strainer of being arranged on every branch road; The ring-type branch road that the said second valve group 14 is made up of four electrically-controlled valve and the pipeline of mutual series connection; The pipeline that is communicated with first, second electrically-controlled valve is communicated with the cooler cooling water outlet 11 of hydraulic generator unit 1 through pipeline 15, and the pipeline that is communicated with the 3rd, the 4th electrically-controlled valve is communicated with the cooler cooling water intake 2 of hydraulic generator unit 1 through pipeline 16 and electrically-controlled valve.The pipeline that is communicated with second, third electrically-controlled valve of the second valve group 14 is connected with the draft tube 12 in power station through pipeline 17; The outlet of the 4th electrically-controlled valve of the second valve group 14 is connected through electrically-controlled valve and storehouse water water supply contact main 18.

Claims (3)

1. a fully-loaded stream power station hydraulic generator unit technical water supply system comprises hydraulic generator unit (1); It is characterized in that: the cooling water intake (2) of said hydraulic generator unit (1) lead up to electrically-controlled valve and positive and negative before transfer valve group unit (3) and the dam intake (4) be connected, another road is communicated with clear water reserviors (5) delivery ports (6) through electrically-controlled valve; Said clear water reserviors (5) water inlets (7) are communicated with underground water source pumping plant (8) through electrically-controlled valve, and clear water reserviors (5) water return outlets (9) are communicated with backwater pumping plant (10) through electrically-controlled valve; The cooling water outlet (11) of hydraulic generator unit (1) is leaded up to said positive and negatively be communicated with the draft tube (12) in power station towards transfer valve group unit (3), and another road is communicated with backwater pumping plant (10) through electrically-controlled valve.
2. fully-loaded stream according to claim 1 power station hydraulic generator unit technical water supply system is characterized in that: saidly positive and negatively be made up of the series connection of the first valve group (13) and the second valve group (14) towards transfer valve group unit (3); The said first valve group (13) is made up of two parallel branches and two electrically-controlled valve and a water strainer of being arranged on each branch road; The ring-type branch road that the said second valve group (14) is made up of four electrically-controlled valve and the pipeline of mutual series connection; The pipeline that is communicated with first, second electrically-controlled valve is communicated with the cooling water outlet (11) of hydraulic generator unit (1) through pipeline (15), and the pipeline that is communicated with the 3rd, the 4th electrically-controlled valve is communicated with the cooling water intake (2) of hydraulic generator unit (1) through pipeline (16) and electrically-controlled valve.
3. fully-loaded stream according to claim 2 power station hydraulic generator unit technical water supply system is characterized in that: the pipeline that is communicated with second, third electrically-controlled valve of the said second valve group (14) is communicated with the draft tube (12) in power station through pipeline (17); The outlet of the 4th electrically-controlled valve of the second valve group (14) is connected through electrically-controlled valve and storehouse water water supply contact main (18).
CN2012200038965U 2012-01-06 2012-01-06 Technical water supply system of water turbine generator set of hydropower station for silt-laden river Expired - Lifetime CN202401437U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200038965U CN202401437U (en) 2012-01-06 2012-01-06 Technical water supply system of water turbine generator set of hydropower station for silt-laden river

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012200038965U CN202401437U (en) 2012-01-06 2012-01-06 Technical water supply system of water turbine generator set of hydropower station for silt-laden river

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CN202401437U true CN202401437U (en) 2012-08-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102518094A (en) * 2012-01-06 2012-06-27 黄河勘测规划设计有限公司 Hydroelectric generating set technical water supply system of hydroelectric station for sediment-laden river

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102518094A (en) * 2012-01-06 2012-06-27 黄河勘测规划设计有限公司 Hydroelectric generating set technical water supply system of hydroelectric station for sediment-laden river

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Granted publication date: 20120829