CN108899564A - A kind of MW class energy-accumulating power station flow battery cooling system - Google Patents
A kind of MW class energy-accumulating power station flow battery cooling system Download PDFInfo
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- CN108899564A CN108899564A CN201810737966.1A CN201810737966A CN108899564A CN 108899564 A CN108899564 A CN 108899564A CN 201810737966 A CN201810737966 A CN 201810737966A CN 108899564 A CN108899564 A CN 108899564A
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- electrolyte
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- heat exchanger
- cooling water
- storage tank
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
- H01M8/184—Regeneration by electrochemical means
- H01M8/188—Regeneration by electrochemical means by recharging of redox couples containing fluids; Redox flow type batteries
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Hybrid Cells (AREA)
Abstract
The present invention discloses a kind of MW class energy-accumulating power station flow battery cooling system.The system includes flow battery, the first electrolyte coolant circulation pump, the second electrolyte coolant circulation pump, First Heat Exchanger, the second heat exchanger and cooling water circulating device；Flow battery includes battery pile, the first electrolyte storage tank, the second electrolyte storage tank, the first electrolyte charge and discharge cycles pump and the second electrolyte charge and discharge cycles pump.First electrolyte coolant circulation pump, First Heat Exchanger and the first electrolyte storage tank constitute the first electrolyte cooling circuit；Second electrolyte coolant circulation pump, the second heat exchanger and the second electrolyte storage tank constitute the second electrolyte cooling circuit；First Heat Exchanger, the second heat exchanger and cooling water circulating device constitute cooling water circulation loop.The present invention, instead of refrigeration air-conditioner, is improved the efficiency for charge-discharge of energy-accumulating power station, reduces energy consumption, equipment investment and the repair and maintenance cost of heat management system by two cooling circuits.
Description
Technical field
The present invention relates to flow battery fields, more particularly to a kind of MW class energy-accumulating power station flow battery cooling system.
Background technique
Flow battery has the characteristics that capacity is high, has extended cycle life, and is highly suitable for extensive, long period, high-power
The application scenarios of MW class energy-accumulating power station.It is sent out rapidly as renewable energy ratio is continuously improved with Distributed Intelligence energy resource system
Exhibition, flow battery will welcome a prosperity and development phase quickly.
The flow battery of suitable MW class energy-accumulating power station mainly has vanadium flow battery and zinc-bromine flow battery at present.Due to vanadium
The efficiency for charge-discharge of flow battery and zinc-bromine flow battery is about 75~80%, that is to say, that having 20~25% electric energy will change
For thermal energy, being calculated with 1 megawatt (MW, the same below) of energy-accumulating power station, the power that electric energy translates into thermal energy is 0.20~0.25MW,
Namely 200~250KW, this partial heat is very big, needs reliable cooling system and is managed to the heat, is to ensure
System operates normally.
Existing heat management solution is to be equipped with one in the flow battery casing internal of each 25KW/125KWh
A thermal management subsystem, specially a refrigeration air-conditioner.After refrigeration air-conditioner is powered, the low-pressure steam quilt of refrigeration system inner refrigerant
Simultaneously to condenser, the air of flow battery casing internal is constantly circulated, is reached boil down to high steam heel row for compressor sucking
To the purpose for reducing casing internal temperature.
The amount of heat generated in flow battery charge and discharge process is controlled with refrigeration air-conditioner, is had a disadvantage that：
1, refrigeration air-conditioner quantity is more, and equipment cost is big, and investment is high.
2, the consumption for additionally increasing refrigeration air-conditioner, reduces the efficiency for charge-discharge of energy-accumulating power station.
3, the service life of refrigeration air-conditioner generally only has 10~15 years, expires and needs replacing refrigeration air-conditioner.In addition in operation
Regular (1~2 year) addition refrigerant is needed, the maintenance and repair costs of energy-accumulating power station are significantly increased.
Summary of the invention
The object of the present invention is to provide a kind of MW class energy-accumulating power station flow battery cooling systems, improve filling for energy-accumulating power station
Discharging efficiency reduces energy consumption, equipment investment and the maintenance and repair costs of heat management system.
To achieve the above object, the present invention provides following schemes：
A kind of MW class energy-accumulating power station flow battery cooling system, the system comprises flow batteries, the first electrolysis liquid cooling
But circulating pump, the second electrolyte coolant circulation pump, First Heat Exchanger, the second heat exchanger and cooling water circulating device；The liquid
Galvanic battery includes battery pile, the first electrolyte storage tank, the second electrolyte storage tank, the first electrolyte charge and discharge cycles pump and second
Electrolyte charge and discharge cycles pump；
First electrolyte storage tank, the first electrolyte charge and discharge cycles pump and the battery pile constitute the first electricity
Solve circuit；
Second electrolyte storage tank, the second electrolyte charge and discharge cycles pump and the battery pile constitute the second electricity
Solve circuit；
The first electrolyte coolant circulation pump, the First Heat Exchanger and first electrolyte storage tank constitute first
Electrolyte cooling circuit；
The second electrolyte coolant circulation pump, second heat exchanger and second electrolyte storage tank constitute second
Electrolyte cooling circuit；
The First Heat Exchanger, second heat exchanger and the cooling water circulating device constitute cooling water and are recycled back to
Road.
Optionally, the cooling water circulating device includes cooling tower, cooling water pump and cooling water tank；The cooling water tank
It is located at the lower section of the cooling tower, is provided with inlet and outlet on the cooling water tank；The cooling water pump is arranged in institute
It states between First Heat Exchanger and the cooling water tank, the cooling tower is connect with second heat exchanger.
Optionally, fan is provided at the top of the cooling tower.
Optionally, the volume of first electrolyte storage tank and second electrolyte storage tank is 1000 liters.
Optionally, the power of the flow battery is 25KW/125Wh.
Compared with prior art, the present invention has the following technical effects：The heat generated in flow battery charge and discharge process,
It can be transmitted in electrolyte, the present invention uses 2 cooling circuits, and the heat in electrolyte is discharged in natural environment.The
One electrolyte coolant circulation pump, heat exchanger and electrolyte storage tank constitute electrolyte cooling circuit, by the heat in electrolyte
Amount is transmitted in cooling water.Heat exchanger and cooling water circulating device constitute cooling water circulation loop, and cooling water passes through cooling water
Heat in cooling water is discharged in natural environment by circulation loop.The present invention replaces tradition side by two cooling circuits
Refrigeration air-conditioner in method improves the efficiency for charge-discharge of energy-accumulating power station, reduces energy consumption, equipment investment and the inspection of heat management system
It repairs and maintenance cost.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of MW class of embodiment of the present invention energy-accumulating power station flow battery cooling system；
Fig. 2 is vanadium flow battery working principle diagram；
Fig. 3 is zinc-bromine flow battery working principle diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is the structural schematic diagram of MW class of embodiment of the present invention energy-accumulating power station flow battery cooling system；Fig. 2 is to consolidate liquid
Galvanic battery working principle diagram；Fig. 3 is zinc-bromine flow battery working principle diagram.
As shown in Fig. 2, vanadium flow battery its working principle is that by using different valence state vanadium ion solution respectively as
Positive and negative anodes active material is pressed into solution in cell stack from reservoir by external pump and completes electrochemical reaction, later solution
It is returned to reservoir, the active material of liquid constantly circulates.The efficiency for charge-discharge of vanadium cell is about 75%.
As shown in figure 3, the electrolyte solution of zinc-bromine flow battery is stored in the electrolyte storage tank of outside batteries, in battery
Two rooms (side of the positive electrode and negative side) being mutually independent, positive and negative anodes when battery works are separated between portion's positive and negative anodes by microporous barrier
Electrolyte is forced to be circulated in the closed circuit that fluid reservoir and battery are constituted by respective kinetic pump.Zinc bromine liquid stream electricity
The efficiency for charge-discharge in pond is about 80%.
Since the efficiency for charge-discharge of vanadium flow battery and zinc-bromine flow battery is about 75~80%, that is to say, that have 20~
25% electric energy translates into thermal energy, is calculated with 1 megawatt (MW, the same below) of energy-accumulating power station, and electric energy translates into the function of thermal energy
Rate is 0.20~0.25MW, that is, 200~250KW, this partial heat is very big, needs reliable cooling system to the heat
It is managed, is operated normally with safeguards system.
In order to improve the efficiency for charge-discharge of energy-accumulating power station, energy consumption, equipment investment and the maintenance and dimension of heat management system are reduced
Cost is protected, the present invention provides a kind of MW class energy-accumulating power station flow battery cooling systems.
As shown in Figure 1, the system comprises flow battery, the first electrolyte coolant circulation pump 1, the coolings of the second electrolyte to follow
Ring pump 2, First Heat Exchanger 3, the second heat exchanger 4 and cooling water circulation are set.The power of the flow battery is 25KW/125Wh,
The flow battery includes battery pile 5, the first electrolyte storage tank 6, the second electrolyte storage tank 7, the first electrolyte charge and discharge cycles
Pump 8 and the second electrolyte charge and discharge cycles pump 9.The appearance of first electrolyte storage tank 6 and second electrolyte storage tank 7
Product is 1000 liters.The cooling water circulating device includes cooling tower 10, cooling water pump 11 and cooling water tank 12；The cooling
Water tank 12 is located at the lower section of the cooling tower 10, is provided with water inlet 13 and water outlet 14 on the cooling water tank 12；It is described cold
But water pump 11 is arranged between the First Heat Exchanger 3 and the cooling water tank 12, the cooling tower 10 and second heat exchange
Device 4 connects.
First electrolyte storage tank 6, the first electrolyte charge and discharge cycles pump 8 and the battery pile 5 constitute the
One electrolysis circuit；Second electrolyte storage tank 7, the second electrolyte charge and discharge cycles pump 9 and the battery pile 5 are constituted
Second electrolysis circuit.
The first electrolyte coolant circulation pump 1, the First Heat Exchanger 3 and first electrolyte storage tank 6 are constituted
First electrolyte cooling circuit；The second electrolyte coolant circulation pump 2, second heat exchanger 4 and described second
Electrolyte storage tank 7 constitutes the second electrolyte cooling circuit.Each flow battery has 1~2 electrolyte storage tank, to each storage
1 small-sized electrolyte cooling circuit is arranged in tank, by the heat transfer in electrolyte into cooling water.
Specific work process is：Electrolyte cooling cycle pump work generates flow head, by electrolyte in electrolyte storage tank
It is circulated in heat exchanger, while cooling water, also by heat exchanger, in heat exchanger, electrolyte and cooling water exchanged heat
Journey, by the heat transfer in electrolyte into cooling water.
The First Heat Exchanger 3, second heat exchanger 4 and the cooling water circulating device constitute cooling water and are recycled back to
Road.Heat in cooling water is discharged in natural environment by cooling water by chilled(cooling) water return (CWR).
Specific work process is：Cooling water pump 11 work, generate flow head, by cooling water heat exchanger, cooling water tank,
It is circulated in cooling tower.In cooling tower, cooling water flows from top to bottom, falls into cooling water tank.Air flows from lower to upper
Dynamic, by heat convection heat transfer process occurs for the two, and by the heat transfer in cooling water into air, air is then discharged into nature
In environment.Pressure head required for air in cooling tower flows, by a fan (not shown) at the top of cooling tower is arranged in
It provides.In this heat transfer process, a small amount of cooling water can be evaporated in air, so needing periodically to supplement by water inlet 13
Water, and sewage periodically is discharged from water outlet 14.
The specific embodiment provided according to the present invention, the invention discloses following technical effects：
The present invention uses 2 cooling circuits, and the heat in electrolyte is discharged in natural environment.First electrolysis liquid cooling
But circulating pump, heat exchanger and electrolyte storage tank constitute electrolyte cooling circuit, by the heat transfer in electrolyte to cold
But in water.Heat exchanger and cooling water circulating device constitute cooling water circulation loop, and cooling water, will by cooling water circulation loop
Heat in cooling water is discharged in natural environment.The present invention replaces the refrigeration in traditional method by two cooling circuits
Air-conditioning improves the efficiency for charge-discharge of energy-accumulating power station, reduce heat management system energy consumption, equipment investment and maintenance and maintenance at
This.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (5)
1. a kind of MW class energy-accumulating power station flow battery cooling system, which is characterized in that the system comprises flow batteries, first
Electrolyte coolant circulation pump, the second electrolyte coolant circulation pump, First Heat Exchanger, the second heat exchanger and cooling water circulation dress
It sets；The flow battery includes battery pile, the first electrolyte storage tank, the second electrolyte storage tank, the first electrolyte charge and discharge cycles
Pump and the second electrolyte charge and discharge cycles pump；
First electrolyte storage tank, the first electrolyte charge and discharge cycles pump and the battery pile constitute first and are electrolysed back
Road；
Second electrolyte storage tank, the second electrolyte charge and discharge cycles pump and the battery pile constitute second and are electrolysed back
Road；
The first electrolyte coolant circulation pump, the First Heat Exchanger and first electrolyte storage tank constitute the first electrolysis
Liquid cooling circuit；
The second electrolyte coolant circulation pump, second heat exchanger and second electrolyte storage tank constitute the second electrolysis
Liquid cooling circuit；
The First Heat Exchanger, second heat exchanger and the cooling water circulating device constitute cooling water circulation loop.
2. cooling system according to claim 1, which is characterized in that the cooling water circulating device includes cooling tower, cold
But water pump and cooling water tank；The cooling water tank is located at the lower section of the cooling tower, is provided on the cooling water tank into water
Mouth and water outlet；The cooling water pump is arranged between the First Heat Exchanger and the cooling water tank, the cooling tower and institute
State the connection of the second heat exchanger.
3. cooling system according to claim 2, which is characterized in that be provided with fan at the top of the cooling tower.
4. cooling system according to claim 1, which is characterized in that first electrolyte storage tank and second electricity
The volume for solving liquid storage tank is 1000 liters.
5. cooling system according to claim 1, which is characterized in that the power of the flow battery is 25KW/125Wh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810737966.1A CN108899564A (en) | 2018-07-06 | 2018-07-06 | A kind of MW class energy-accumulating power station flow battery cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810737966.1A CN108899564A (en) | 2018-07-06 | 2018-07-06 | A kind of MW class energy-accumulating power station flow battery cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108899564A true CN108899564A (en) | 2018-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810737966.1A Pending CN108899564A (en) | 2018-07-06 | 2018-07-06 | A kind of MW class energy-accumulating power station flow battery cooling system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021094094A1 (en) * | 2019-11-14 | 2021-05-20 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Engine assembly, method for operating an engine assembly and use of a flow battery assembly in an engine assembly |
| CN114069005A (en) * | 2021-10-26 | 2022-02-18 | 北京京能科技有限公司 | Heat exchange method of all-vanadium redox flow battery |
| CN114335601A (en) * | 2021-11-23 | 2022-04-12 | 武汉格罗夫氢能汽车有限公司 | Fuel cell cooling system and cooling method for energy storage power station |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110830A (en) * | 2011-01-26 | 2011-06-29 | 上海林洋储能科技有限公司 | Volume heat exchange equipment for flow battery |
| CN203134898U (en) * | 2013-03-15 | 2013-08-14 | 大连融科储能技术发展有限公司 | Heat exchanging system of megawatt-grade redox flow battery |
| KR20150062818A (en) * | 2013-11-29 | 2015-06-08 | 롯데케미칼 주식회사 | Redox flow battery with temperature controller of electrolyte |
-
2018
- 2018-07-06 CN CN201810737966.1A patent/CN108899564A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110830A (en) * | 2011-01-26 | 2011-06-29 | 上海林洋储能科技有限公司 | Volume heat exchange equipment for flow battery |
| CN203134898U (en) * | 2013-03-15 | 2013-08-14 | 大连融科储能技术发展有限公司 | Heat exchanging system of megawatt-grade redox flow battery |
| KR20150062818A (en) * | 2013-11-29 | 2015-06-08 | 롯데케미칼 주식회사 | Redox flow battery with temperature controller of electrolyte |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021094094A1 (en) * | 2019-11-14 | 2021-05-20 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Engine assembly, method for operating an engine assembly and use of a flow battery assembly in an engine assembly |
| CN114069005A (en) * | 2021-10-26 | 2022-02-18 | 北京京能科技有限公司 | Heat exchange method of all-vanadium redox flow battery |
| CN114335601A (en) * | 2021-11-23 | 2022-04-12 | 武汉格罗夫氢能汽车有限公司 | Fuel cell cooling system and cooling method for energy storage power station |
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