CN110528016B - Device for generating electricity and producing hydrogen by utilizing residual pressure of hydropower station cooling water supply system - Google Patents

Device for generating electricity and producing hydrogen by utilizing residual pressure of hydropower station cooling water supply system Download PDF

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Publication number
CN110528016B
CN110528016B CN201910947294.1A CN201910947294A CN110528016B CN 110528016 B CN110528016 B CN 110528016B CN 201910947294 A CN201910947294 A CN 201910947294A CN 110528016 B CN110528016 B CN 110528016B
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water
generating set
hydroelectric generating
water supply
small
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CN110528016A (en
Inventor
桂绍波
李玲
陈冬波
郑涛平
郑建强
郭学洋
王豪
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Changjiang Institute of Survey Planning Design and Research Co Ltd
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Changjiang Institute of Survey Planning Design and Research Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00Electrolytic production of inorganic compounds or non-metals
    • C25B1/01Products
    • C25B1/02Hydrogen or oxygen
    • C25B1/04Hydrogen or oxygen by electrolysis of water
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/60Constructional parts of cells
    • C25B9/65Means for supplying current; Electrode connections; Electric inter-cell connections
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • 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
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/36Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/133Renewable energy sources, e.g. sunlight

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

The invention discloses a hydrogen production device by utilizing residual pressure of a hydropower station cooling water supply system, which comprises a water intake arranged on a pressure steel pipe of a hydroelectric generating set, wherein the water intake is connected with a water inlet pipeline of a small hydroelectric generating set through a pipeline, a water outlet pipeline of the small hydroelectric generating set is connected with a water inlet of a cooling system of a large hydroelectric generating set through a pipeline, a water outlet of the cooling system is connected with a tail water pipe of the hydroelectric generating set, and an electric power output end of the small hydroelectric generating set is connected with an electrolytic water hydrogen production device to provide a power source for the electrolytic water hydrogen production device. The invention converts the small-sized hydroelectric generating set into electric energy, improves the water resource utilization rate and the power generation potential of the large-capacity hydroelectric generating set at the water head section of 70 m-230 m, and reduces the running cost of the hydropower station.

Description

Device for generating electricity and producing hydrogen by utilizing residual pressure of hydropower station cooling water supply system
Technical Field
The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a device for generating electricity and producing hydrogen by utilizing residual pressure of a hydropower station cooling water supply system.
Background
The cooling water supply object of the hydropower station is various electromechanical operation devices, wherein the cooling water supply object is mainly a hydroelectric generating set, a main transformer, a speed regulator and the like. The main function of the cooling water supply is to cool and lubricate the electromechanical operation equipment, the cooling water supply equipment mainly comprises a generator air cooler, a generator thrust bearing and guide bearing, a hydraulic turbine main shaft seal, a governor oil pressure device, a main transformer cooler and the like.
According to the different water heads of the power station, common water supply modes of the hydropower station for cooling include water pump pressurized water supply, self-flowing pressure-reducing water supply, water taking by a top cover of a water turbine and the like.
The water pressure required by the inlets of the coolers of the hydroelectric generating set is usually 20-50 m. Therefore, in order to meet the water pressure requirement, a large-capacity hydroelectric generating set with a general working water head of 70-140 m usually adopts a primary self-flow decompression cooling water supply mode; the large-capacity water turbine generator set with the working water head between 140m and 230m usually adopts a two-stage series connection self-flow decompression cooling water supply mode. Because the cooling water consumption of the large-capacity hydroelectric generating set is large, for example, the cooling water consumption of a single unit of a three gorges hydropower station single unit capacity 700MW hydroelectric generating set is about 2500m3/h. Therefore, for the large-capacity hydroelectric generating set adopting the primary or secondary self-flow decompression water supply mode, the waste of water resources and generating potential of the power station is serious, and the running cost of the power station is relatively high.
Disclosure of Invention
The invention aims to solve the defects in the prior art, provides an intelligent temperature control cooling water supply system for a hydropower station electrolytic hydrogen production device, improves the water resource utilization rate and the power generation potential of the hydropower station, reduces water abandon in flood season, and simultaneously utilizes generated electric energy to electrolyze water to generate hydrogen and oxygen, thereby increasing the productivity and economic benefit of the hydropower station.
The invention provides a device for generating hydrogen by utilizing residual pressure of a hydropower station cooling water supply system, which is designed by the invention and comprises a water intake arranged on a pressure steel pipe of a hydroelectric generating set.
Further, the electrolytic water hydrogen production device comprises an electrolytic tank, a hydrogen collection device, an oxygen collection device and an electrolytic tank cooling water supply and drainage system.
Further, the cooling water supply of the electrolytic tank is taken from a water outlet pipeline of the small-sized hydroelectric generating set, and the cooling water of the electrolytic tank is discharged into a draft tube of the hydroelectric generating set.
Furthermore, the small-sized hydroelectric generating set comprises a power generation hydrogen production cooling water supply branch, a standby self-flow decompression cooling water supply branch and a start-stop control device, and the power generation hydrogen production cooling water supply branch and the standby self-flow decompression cooling water supply branch are switched by a switch signal sent by the start-stop control device of the small-sized hydroelectric generating set.
Furthermore, a rectifier cabinet is arranged between the small-sized hydroelectric generating set and the water electrolysis hydrogen production device, and the rectifier cabinet converts alternating current generated by the small-sized hydroelectric generating set into direct current and outputs the direct current to the water electrolysis hydrogen production device.
Compared with the prior art, the invention has the beneficial effects that:
(1) The technology of the invention utilizes the flow and surplus water pressure of the cooling water supply system of the large-sized hydroelectric generating set, converts the flow and surplus water pressure into electric energy through the small-sized hydroelectric generating set, improves the water resource utilization rate and the power generation potential of the large-capacity hydroelectric generating set at the water head section of 70 m-230 m, and reduces the running cost of the hydropower station.
(2) The technology of the invention utilizes the generated electric energy to electrolyze water to generate hydrogen and oxygen, and can effectively increase the productivity and economic benefit of the hydropower station.
Drawings
FIG. 1 is a schematic diagram of a hydrogen production plant utilizing the excess pressure of a hydropower station cooling water supply system.
In the figure: the device comprises a large-sized hydroelectric generating set 1, a water intake 1.1, a pressure steel pipe 1.2, a cooling system 1.3, a draft tube 1.4, a small-sized hydroelectric generating set 2, a power generation hydrogen production cooling water supply branch 2.1, a standby self-flowing decompression cooling water supply branch 2.2, a water filter 2.2.1, a decompression valve 2.2.2, a start-stop control device 2.3, a rectifier cabinet 3, an electrolytic water hydrogen production device 4, an electrolytic tank 4.1, an oxygen collection device 4.2, a hydrogen collection device 4.3, an electrolytic tank cooling water supply 4.4 and a drainage system 4.5.
Detailed Description
In order to make the technical scheme and the beneficial effects of the invention more clear, the invention is further described in detail below with reference to the accompanying drawings and the embodiments.
As shown in fig. 1, the invention provides a hydrogen production device by utilizing the residual pressure of a hydropower station cooling water supply system, which comprises a large-sized hydroelectric generating set 1, a cooling system 1.3 thereof, a small-sized hydroelectric generating set 2, a rectifying cabinet 3, an electrolyzed water hydrogen production device 4 and the like. The pressure steel pipe 1.2 of the hydroelectric generating set 1 is provided with a water intake 1.1, the water intake 1.1 is connected with a water inlet pipeline of the small hydroelectric generating set 2 through a pipeline, a water outlet pipeline of the small hydroelectric generating set 2 is connected with a water inlet of a cooling system 1.3 of the large hydroelectric generating set 1 through a pipeline, a water outlet of the cooling system 1.3 is connected with a draft tube 1.4 of the hydroelectric generating set 1, and the small hydroelectric generating set 2 comprises a power generation hydrogen production cooling water supply branch 2.1, a standby self-flow decompression cooling water supply branch 2.2 and a start-stop control device 2.3. The electric power output end of the small hydroelectric generating set 2 is connected with the water electrolysis hydrogen production device 4 through the rectifying cabinet 3 to provide a power source for the water electrolysis hydrogen production device 4. The electrolytic water hydrogen production device 4 comprises an electrolytic tank 4.1, a hydrogen collecting device 4.3, an oxygen collecting device 4.2, an electrolytic tank cooling water supply 4.4 and a drainage system 4.5. The electrolytic tank cooling water supply 4.4 is taken from the water outlet pipeline of the small-sized hydroelectric generating set 2, and the electrolytic tank cooling water discharge 4.5 is discharged into the draft tube 1.4 of the hydroelectric generating set 1.
According to the invention, the water intake 1.1 is arranged on the pressure steel pipe or the upstream reservoir of the power station in the large-sized hydroelectric generating set 1 and the cooling system 1.3 thereof, and after the high-pressure cooling water passing through the water intake 1.1 passes through the small-sized hydroelectric generating set 2 to generate electricity, produce hydrogen, cool and supply branch 2.1 to generate electricity and decompress, the cooling water pressure can meet the pressure requirement of 20 m-50 m required by the cooling system 1.3 of the large-sized hydroelectric generating set and is discharged into the tail water of the power station or the tail water pipe 1.4 of the hydroelectric generating set after passing through the cooling system 1.3 of the large-sized hydroelectric generating set. The small-sized hydroelectric generating set 2 generates power by utilizing the surplus water pressure of the cooling water of the large-sized hydroelectric generating set 1, the generated alternating current is changed into direct current after passing through the rectifying cabinet 3, and the generated alternating current is electrolyzed by the electrolytic tank 4.1 to generate hydrogen and oxygen and is stored in the hydrogen collecting device 4.3 and the oxygen collecting device 4.2.
In order to prevent the cooling water supply branch 2.1 of the small-sized hydroelectric generating set 2 from interrupting the cooling system 1.3 of the large-sized hydroelectric generating set 1 due to the normal shutdown of the electrolytic water hydrogen generating set 4 or the cutting of other reasons, the large-sized hydroelectric generating set 1 is stopped in an accident, and the standby self-flowing decompression cooling water supply branch 2.2 is arranged on the large-sized hydroelectric generating set 1 and the cooling system 1.3 thereof, so that the reliability of the cooling water supply system of the large-sized hydroelectric generating set is improved. The two cooling water supply branches of power generation and hydrogen production and self-flow decompression can be switched through the switch signal sent by the start-stop control device 2.3 of the small-sized hydroelectric generating set 2 to the cooling water supply branch 2.1 of power generation and hydrogen production and the standby self-flow decompression cooling water supply branch 2.2, so that the safe and reliable operation of the large-sized hydroelectric generating set and the cooling system thereof is ensured.
After the standby self-flow decompression water supply branch 2.2 passes through the water filter 2.2.1 and the decompression valve 2.2.2, the cooling water pressure can meet the pressure requirement of the large-scale hydroelectric generating set cooling system 1.3. Meanwhile, the small-sized water turbine generator set 2 generates electricity, hydrogen and cools the water supply branch 2.1 and artesian decompression and cools the water supply branch 2.2 and can switch each other, each other is reserve.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
What is not described in detail in this specification is prior art known to those skilled in the art.

Claims (2)

1. The utility model provides an utilize power station cooling water supply system residual pressure electricity generation hydrogen plant, includes intake (1.1) on pressure steel pipe (1.2) of hydroelectric set (1), its characterized in that: the water intake (1.1) is connected with a water inlet pipeline of the small-sized water turbine generator set (2) through a pipeline, a water outlet pipeline of the small-sized water turbine generator set (2) is connected with a water inlet of a cooling system (1.3) of the large-sized water turbine generator set (1) through a pipeline, a water outlet of the cooling system (1.3) is connected with a draft tube (1.4) of the water turbine generator set (1), and an electric power output end of the small-sized water turbine generator set (2) is connected with an electrolytic water hydrogen production device (4) to provide a power source for the electrolytic water hydrogen production device (4);
The electrolytic water hydrogen production device (4) comprises an electrolytic tank (4.1), a hydrogen collection device (4.3), an oxygen collection device (4.2), an electrolytic tank cooling water supply (4.4) and a drainage system (4.5);
the small-sized hydroelectric generating set (2) comprises a power generation hydrogen production cooling water supply branch (2.1), a standby self-flow decompression cooling water supply branch (2.2) and a start-stop control device (2.3), and the power generation hydrogen production cooling water supply branch (2.1) and the standby self-flow decompression cooling water supply branch (2.2) are switched through a switching signal sent by the start-stop control device (2.3) of the small-sized hydroelectric generating set (2);
a rectifying cabinet (3) is arranged between the small-sized water turbine generator set (2) and the electrolyzed water hydrogen production device (4), and the rectifying cabinet (3) converts alternating current generated by the small-sized water turbine generator set (2) into direct current and outputs the direct current to the electrolyzed water hydrogen production device (4).
2. The hydrogen production plant using the excess pressure of the hydropower station cooling water supply system as claimed in claim 1, wherein: the electrolytic tank cooling water supply (4.4) is taken from an outlet pipeline of the small-sized hydroelectric generating set (2), and the electrolytic tank cooling water discharge (4.5) is discharged into a draft tube (1.4) of the hydroelectric generating set (1).
CN201910947294.1A 2019-09-30 2019-09-30 Device for generating electricity and producing hydrogen by utilizing residual pressure of hydropower station cooling water supply system Active CN110528016B (en)

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CN110528016B true CN110528016B (en) 2024-04-16

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CN113109230B (en) * 2021-03-30 2022-11-04 中国电建集团西北勘测设计研究院有限公司 Novel earth and rockfill dam construction material seepage deformation test system and method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202082037U (en) * 2011-06-13 2011-12-21 河南新飞纪元科技有限公司 Industrial circulating water complementary energy generating set
CN202140228U (en) * 2011-06-08 2012-02-08 长江勘测规划设计研究有限责任公司 Tail water and remaining pressure water supply and cooling system of water turbine generator set
CN106500521A (en) * 2016-10-21 2017-03-15 峨眉山市百分百水力节能科技有限公司 Energy-saving recirculating cooling water system
CN107017633A (en) * 2017-04-11 2017-08-04 赫普热力发展有限公司 The system that a kind of electrolytic hydrogen production is combined with water-power plant
KR101911873B1 (en) * 2017-10-26 2018-10-31 아크로랩스 주식회사 Integrated hydrogen power system
KR20190076704A (en) * 2017-12-22 2019-07-02 포스코에너지 주식회사 Cooling system of gas turbine generating apparatus and control method thereof and gas turbine generating apparatus
CN210974885U (en) * 2019-09-30 2020-07-10 长江勘测规划设计研究有限责任公司 Power generation and hydrogen production device utilizing surplus pressure of cooling water supply system of hydropower station

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202140228U (en) * 2011-06-08 2012-02-08 长江勘测规划设计研究有限责任公司 Tail water and remaining pressure water supply and cooling system of water turbine generator set
CN202082037U (en) * 2011-06-13 2011-12-21 河南新飞纪元科技有限公司 Industrial circulating water complementary energy generating set
CN106500521A (en) * 2016-10-21 2017-03-15 峨眉山市百分百水力节能科技有限公司 Energy-saving recirculating cooling water system
CN107017633A (en) * 2017-04-11 2017-08-04 赫普热力发展有限公司 The system that a kind of electrolytic hydrogen production is combined with water-power plant
KR101911873B1 (en) * 2017-10-26 2018-10-31 아크로랩스 주식회사 Integrated hydrogen power system
KR20190076704A (en) * 2017-12-22 2019-07-02 포스코에너지 주식회사 Cooling system of gas turbine generating apparatus and control method thereof and gas turbine generating apparatus
CN210974885U (en) * 2019-09-30 2020-07-10 长江勘测规划设计研究有限责任公司 Power generation and hydrogen production device utilizing surplus pressure of cooling water supply system of hydropower station

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