CN114597445B - Comprehensive thermal management method for hydrogen energy storage system - Google Patents
Comprehensive thermal management method for hydrogen energy storage system Download PDFInfo
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- CN114597445B CN114597445B CN202210171321.2A CN202210171321A CN114597445B CN 114597445 B CN114597445 B CN 114597445B CN 202210171321 A CN202210171321 A CN 202210171321A CN 114597445 B CN114597445 B CN 114597445B
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- power generation
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- hydrogen production
- hydrogen
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 239000001257 hydrogen Substances 0.000 title claims abstract description 81
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 81
- 238000007726 management method Methods 0.000 title claims abstract description 43
- 238000004146 energy storage Methods 0.000 title claims abstract description 32
- 238000001816 cooling Methods 0.000 claims abstract description 45
- 238000010248 power generation Methods 0.000 claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 claims abstract description 42
- 230000017525 heat dissipation Effects 0.000 claims abstract description 24
- 239000000446 fuel Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 239000003792 electrolyte Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000000110 cooling liquid Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 2
- 238000005868 electrolysis reaction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 description 6
- 208000028659 discharge Diseases 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000126 substance Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
-
- 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
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0432—Temperature; Ambient temperature
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
-
- 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
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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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)
- Fuel Cell (AREA)
Abstract
The invention discloses a comprehensive heat management method of a hydrogen energy storage system, which aims at the situation that the functions of a fuel cell power generation unit and an electrolysis hydrogen production unit heat dissipation system in the current hydrogen energy storage system are approximate and construction is repeated, and by adopting the comprehensive heat management system, the temperatures of a fuel cell power generation unit pile and an electrolysis hydrogen production unit electrolysis tank in the hydrogen energy storage system are comprehensively controlled by using a set of heat dissipation system, so that a set of heat dissipation system is saved; the method mainly comprises the steps of utilizing the characteristic that two links of hydrogen production and power generation in the hydrogen energy storage system do not work simultaneously, monitoring the working states of a fuel cell power generation unit and a hydrogen production unit of the energy storage system in real time, and controlling the temperatures of the two units by switching the working states of a cooling pump and using a set of heat dissipation system in a time-sharing mode, so that the effects of saving hardware investment and reducing system complexity are achieved.
Description
Technical Field
The invention belongs to the technical field of hydrogen energy storage, and particularly relates to a comprehensive thermal management method of a hydrogen energy storage system.
Background
The hydrogen energy storage system is an electrical power system energy storage system. Because the power output of renewable energy power generation facilities such as wind and light power generation has the characteristics of intermittence, volatility and the like, the power output cannot be regulated along with a load, and the power output is difficult to directly use. In order to stabilize renewable energy sources, it is generally necessary to use energy storage devices to regulate their intermittence and volatility so that they can be stably connected to the internet. The hydrogen energy storage system has the characteristics of large electric quantity, no self-discharge in the storage process and the like, and is suitable for storing electric energy for a long time with large capacity.
The hydrogen energy storage system is composed of a fuel cell power generation unit, a hydrogen storage unit, an electrolysis hydrogen production unit and other systems, the power generation process and the electrolysis hydrogen production process are both heating processes, and a heat dissipation system is required to be arranged respectively to control the temperature of the working process. The energy storage system is divided into an electric energy storage stage and a discharge stage, wherein the electrolytic hydrogen production unit works in the electric energy storage stage to convert electric energy into chemical energy of hydrogen and store the chemical energy in the hydrogen storage unit; the fuel cell power generation unit operates during the discharge phase to reconvert chemical energy in the hydrogen gas into electrical energy. The two processes of electric energy storage and discharge cannot occur simultaneously in the working process, the working temperatures of the power generation unit and the hydrogen production unit are close, and two heat dissipation systems with similar functions are respectively arranged to cause waste on hardware and increase cost.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a comprehensive thermal management method of a hydrogen energy storage system, which solves the problem of hardware resource waste caused by the fact that a power generation unit and a hydrogen production unit of the traditional hydrogen energy storage system are respectively provided with a set of heat dissipation system.
In order to solve the technical problems, the invention provides the following technical scheme: a method for integrated thermal management of a hydrogen storage system, comprising the steps of:
s1, connecting a corresponding pipeline, a cooling pump 1 and the hot side of a heat exchanger 1 to a pile cooling liquid interface of the fuel cell power generation unit so as to establish a cooling loop of the fuel cell power generation unit.
S2, connecting corresponding pipelines, a cooling pump 2 and the hot side of the heat exchanger 2 to an electrolyte interface of an electrolytic tank of the electrolytic hydrogen production unit so as to establish a cooling loop of the electrolytic hydrogen production unit.
S3, connecting cold sides of the heat exchanger 1 and the heat exchanger 2 by using pipelines, and arranging a cooling pump 3 and a heat dissipation system in a loop to establish an integrated heat management system.
S4, monitoring states of the power generation unit and the hydrogen production unit in the hydrogen energy storage system by a controller, controlling the temperature of the power generation unit through a heat dissipation system when the power generation unit works, and controlling the temperature of the hydrogen production unit through the heat dissipation system when the hydrogen production unit works.
In a preferred embodiment of the present invention, in the step S1 and the step S2, the heat exchanger is any one of a plate type, a tube type, or any other type of liquid-liquid heat exchanger.
In a preferred embodiment of the present invention, in step S3, the heat dissipation system is any one of an air-cooled heat sink and a cooling tower.
In the step S4, the heat management method controls the temperature of the power generation unit or the hydrogen generation unit by adjusting the rotational speeds of the water pump 1, the water pump 2, the water pump 3, the fan of the heat dissipation system, and the like.
As a preferable technical scheme of the invention, the main heating element of the fuel cell power generation unit in the step S1 is a galvanic pile, and the main heating element of the electrolytic hydrogen production unit in the step S2 is an electrolytic tank.
As a preferable embodiment of the present invention, in the step S4, when the power generation unit is operated, the cooling pump 1 of the power generation unit and the cooling pump 3 of the integrated thermal management system are controlled to operate.
When the hydrogen production unit works, the cooling pump 2 of the hydrogen production unit and the cooling pump 3 of the integrated heat management system are controlled to work.
Compared with the prior art, the invention has the following beneficial effects:
the invention adopts the comprehensive heat management system and the comprehensive heat management method, and controls the temperature of the hydrogen production unit by using the comprehensive heat management system in the electric energy storage stage of the hydrogen energy storage system, and controls the temperature of the fuel cell power generation unit by using the comprehensive heat management system in the discharging stage.
Drawings
FIG. 1 is a schematic diagram of a conventional hydrogen storage system thermal management system architecture;
FIG. 2 is a schematic diagram of a thermal management system architecture for a hydrogen storage system according to the present invention.
Detailed Description
Technical means for realizing the invention; creating a feature; the objects and effects of the present invention will be readily apparent from the following description of the preferred embodiments, but the following examples are not intended to be exhaustive. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the invention. The experimental methods in the following examples, unless otherwise specified, are conventional methods, and the materials used in the following examples; reagents and the like are commercially available unless otherwise specified.
Examples
Example 1
A method of integrated thermal management of a hydrogen storage system as shown in fig. 2, comprising the steps of:
s1, establishing a cooling loop of the fuel cell power generation unit: and connecting corresponding pipelines, a cooling pump 1 and the hot side of the heat exchanger 1 to the pile cooling liquid interface to form a cooling loop of the fuel cell power generation unit.
S2, establishing a cooling loop of the electrolytic hydrogen production unit: and the electrolyte interface of the electrolytic tank is connected with a corresponding pipeline, a cooling pump 2 and the hot side of the heat exchanger 2 to form a cooling loop of the electrolytic hydrogen production unit.
S3, building a comprehensive thermal management system: the cold sides of the heat exchangers 1, 2 are connected by piping and a cooling pump 3 and a radiator system are provided in the circuit.
S4, implementing the comprehensive thermal management method, which comprises the following steps:
the method comprises the steps of monitoring states of a power generation unit and a hydrogen production unit in a hydrogen energy storage system through a controller, controlling a cooling pump 1 of the power generation unit to work when the power generation unit works, controlling a cooling pump 3 of a comprehensive heat management system to work, and controlling the temperature of the power generation unit through a heat dissipation system;
when the hydrogen production unit works, the cooling pump 2 of the hydrogen production unit is controlled to work, the cooling pump 3 of the integrated heat management system works, and the temperature of the hydrogen production unit is controlled through the heat dissipation system.
Example 2
A method for integrated thermal management of a hydrogen storage system, comprising the steps of:
s1, establishing a cooling loop of the fuel cell power generation unit: the main heating element of the fuel cell power generation unit is a pile, and the invention eliminates a separate fuel cell heat dissipation system, and the heat dissipation of the fuel cell is connected to the integrated thermal management system through a series of pipelines. The stack cooling liquid outlet is connected to the cooling pump 1 and the hot side inlet of the heat exchanger 1 through pipelines, and returns to the stack cooling liquid inlet from the hot side outlet of the heat exchanger 1 to form a cooling loop of the fuel cell power generation unit.
S2, establishing a cooling loop of the electrolytic hydrogen production unit: the main heating element of the electrolytic hydrogen production unit is an electrolytic tank, and the invention cancels an independent hydrogen production unit heat dissipation system, and the heat dissipation of the electrolytic tank is connected to the comprehensive thermal management system through a series of pipelines. The electrolyte outlet of the electrolytic tank is connected to the cooling pump 2 and the hot side inlet of the heat exchanger 2 through pipelines, and the electrolyte outlet of the electrolytic tank is connected to the electrolyte inlet of the electrolytic tank from the hot side outlet of the heat exchanger 2, so that a cooling loop of the electrolytic hydrogen production unit is formed.
S3, building a comprehensive thermal management system: the cold sides of the heat exchangers 1, 2 are connected using piping and a cooling pump 3 and a radiator system are provided in the circuit.
S4, implementing a comprehensive thermal management method: the states of the power generation unit and the hydrogen production unit in the hydrogen energy storage system are monitored by a controller and corresponding control strategies are provided. When the power consumption of a certain photovoltaic power station is high at night, the power cannot be generated due to no sunlight, and the power is generated by the hydrogen energy storage system and supplied to a power grid. In the power generation process of the hydrogen energy storage system, the optimal temperature of the fuel cell power generation unit pile is 75 ℃ of the inlet temperature, the comprehensive heat management system controls the rotation speeds of the heat radiation system 3, the water pump 1 and the water pump 3, and the inlet temperature of the pile is adjusted to be 75 ℃; in the period of the strongest sunlight in the daytime, the electricity load is smaller than the generated energy of the photovoltaic power station, and in order to reduce the waste light, the hydrogen storage system is started for producing hydrogen by electrolysis, and electric energy is stored. In the energy storage process of the hydrogen energy storage system, the optimal working temperature of the electrolytic tank of the hydrogen production unit is 70 ℃ of the inlet electrolyte, the controller controls the cooling pump 2 of the hydrogen production unit to work, the cooling pump 3 of the integrated heat management system works, and the cooling system controls the inlet temperature of the electrolyte of the hydrogen production unit to be 70 ℃.
The invention adopts a comprehensive heat management system and a comprehensive heat management method, and the comprehensive heat management system is used for controlling the temperature of the hydrogen production unit in the electric energy storage stage of the hydrogen energy storage system; during the discharge phase, the temperature of the fuel cell power generation unit is controlled using an integrated thermal management system. By adopting the method, a set of heat dissipation system can control the temperatures of two units, hardware investment is saved, and system complexity is reduced.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, the first feature is "over" the second feature; "above" and "over" include both the first feature being directly above and obliquely above the second feature, or simply mean that the first feature is higher in level than the second feature. The first feature is "under" the second feature; "under" and "under" include both directly under and obliquely under the second feature, or simply mean that the first feature is less level than the second feature.
The foregoing shows and describes the basic principles of the invention; the main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A method for integrated thermal management of a hydrogen storage system, comprising the steps of:
s1, connecting a corresponding pipeline, a cooling pump 1 and the hot side of a heat exchanger 1 to a pile cooling liquid interface of a fuel cell power generation unit so as to establish a cooling loop of the fuel cell power generation unit;
s2, connecting a corresponding pipeline, a cooling pump 2 and the hot side of the heat exchanger 2 to an electrolyte interface of an electrolytic tank of the electrolytic hydrogen production unit so as to establish a cooling loop of the electrolytic hydrogen production unit;
s3, connecting cold sides of the heat exchanger 1 and the heat exchanger 2 by using pipelines, and arranging a cooling pump 3 and a heat dissipation system in a loop to establish an integrated thermal management system;
s4, monitoring states of the power generation unit and the hydrogen production unit in the hydrogen energy storage system by a controller, controlling the temperature of the power generation unit through a heat dissipation system when the power generation unit works, and controlling the temperature of the hydrogen production unit through the heat dissipation system when the hydrogen production unit works.
2. The integrated thermal management method for a hydrogen storage system of claim 1, wherein: in the step S1 and the step S2, the heat exchanger is any one of a plate-type and a tube-type liquid-liquid heat exchanger.
3. The integrated thermal management method for a hydrogen storage system of claim 1, wherein: in the step S3, the heat dissipation system may be any one of an air-cooled radiator and a cooling tower.
4. The integrated thermal management method for a hydrogen storage system of claim 1, wherein: in the step S4, the thermal management method controls the temperature of the power generation unit or the hydrogen production unit by adjusting the rotation speeds of the cooling pump 1, the cooling pump 2, the cooling pump 3 and the rotation speed of the fan of the heat dissipation system.
5. The integrated thermal management method for a hydrogen storage system of claim 1, wherein: the heating element of the fuel cell power generation unit in the step S1 is a pile, and the main heating element of the electrolytic hydrogen production unit in the step S2 is an electrolytic tank.
6. The integrated thermal management method for a hydrogen storage system of claim 1, wherein: in the step S4, when the power generation unit works, the cooling pump 1 of the power generation unit is controlled to work and the cooling pump 3 of the integrated thermal management system is controlled to work;
when the hydrogen production unit works, the cooling pump 2 of the hydrogen production unit and the cooling pump 3 of the integrated heat management system are controlled to work.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210171321.2A CN114597445B (en) | 2022-02-24 | 2022-02-24 | Comprehensive thermal management method for hydrogen energy storage system |
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| CN202210171321.2A CN114597445B (en) | 2022-02-24 | 2022-02-24 | Comprehensive thermal management method for hydrogen energy storage system |
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| CN114597445B true CN114597445B (en) | 2024-01-26 |
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| KR20130120908A (en) * | 2012-04-26 | 2013-11-05 | 지에스칼텍스 주식회사 | Fuel cell system for easy heat emission |
| CN106571478A (en) * | 2016-07-18 | 2017-04-19 | 全球能源互联网研究院 | Thermal control method in hydrogen energy storage system, and control system thereof |
| CN109687002A (en) * | 2018-11-13 | 2019-04-26 | 中广核研究院有限公司 | A kind of distributed triple-generation system |
| CN111370804A (en) * | 2020-02-13 | 2020-07-03 | 江苏大学 | Electricity-electricity mixed fuel cell automobile water heat management system and control method thereof |
| CN114068986A (en) * | 2021-11-09 | 2022-02-18 | 广东电网有限责任公司广州供电局 | Solid alloy hydrogen storage and multi-stack fuel cell thermal management system |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130120908A (en) * | 2012-04-26 | 2013-11-05 | 지에스칼텍스 주식회사 | Fuel cell system for easy heat emission |
| CN106571478A (en) * | 2016-07-18 | 2017-04-19 | 全球能源互联网研究院 | Thermal control method in hydrogen energy storage system, and control system thereof |
| CN109687002A (en) * | 2018-11-13 | 2019-04-26 | 中广核研究院有限公司 | A kind of distributed triple-generation system |
| CN111370804A (en) * | 2020-02-13 | 2020-07-03 | 江苏大学 | Electricity-electricity mixed fuel cell automobile water heat management system and control method thereof |
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