CN114976109A - High-temperature reversible solid oxide fuel cell thermal management device and system - Google Patents
High-temperature reversible solid oxide fuel cell thermal management device and system Download PDFInfo
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- CN114976109A CN114976109A CN202210709650.8A CN202210709650A CN114976109A CN 114976109 A CN114976109 A CN 114976109A CN 202210709650 A CN202210709650 A CN 202210709650A CN 114976109 A CN114976109 A CN 114976109A
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- 239000000446 fuel Substances 0.000 title claims abstract description 35
- 230000002441 reversible effect Effects 0.000 title claims abstract description 21
- 239000007787 solid Substances 0.000 title claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 112
- 239000007789 gas Substances 0.000 claims abstract description 17
- 239000000376 reactant Substances 0.000 claims abstract description 9
- 239000012495 reaction gas Substances 0.000 claims abstract description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 26
- 238000005868 electrolysis reaction Methods 0.000 claims description 26
- 239000001257 hydrogen Substances 0.000 claims description 24
- 229910052739 hydrogen Inorganic materials 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 5
- 238000010248 power generation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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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
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
-
- 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
-
- 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
- H01M8/04037—Electrical heating
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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
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M2008/1293—Fuel cells with solid oxide electrolytes
-
- 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
Abstract
The invention discloses a heat management device, comprising: the heat exchange device comprises at least one heat exchange component and at least one heating component, wherein at least one heating element is arranged on the heating component; the invention discloses a high-temperature reversible solid oxide fuel cell system, which comprises a reaction gas loop module, an air loop module and a cell module which are connected in sequence; the reactant gas loop module comprises a thermal management device; the air circuit module includes a thermal management device; the invention removes extra components and pipelines by arranging the heat management device, thereby reducing the complexity of the system; the size of the overall system is reduced, thereby reducing material usage, cost, and heat loss, making the system more energy efficient and cost effective.
Description
Technical Field
The invention relates to the research field of reversible high-temperature water electrolysis systems, in particular to a high-temperature reversible solid oxide fuel cell thermal management device and system.
Background
Power generation systems using renewable energy sources such as solar or wind energy are the focus of research. In the case of a power generation system using renewable energy, the electric output fluctuates with changes in the natural environment. For example, if the power generated by a renewable energy power generation facility exceeds the power demand, a reversible water electrolysis system may be used to divert excess power to produce and store hydrogen gas, and then to convert the hydrogen gas back to power when needed.
Reversible (or bi-directional) electrolyzed water systems based on high temperature water electrolysis and fuel cell technology require operating environments of 700 ℃ or higher, precise thermal management of the system is critical to achieving high efficiency and long life, and system size and cost are also important.
The core of the reversible high temperature system is the high temperature stack. The stack consists of a number of individual cells, operating in fuel cell mode during power generation and in electrolysis mode during the consumption and storage of power. In order to operate the stack at high temperatures, both the reactant gases and the air need to reach the appropriate temperatures to prevent overcooling or overheating of the stack. As an example of a reversible solid oxide cell (soc). This design is similar to the design disclosed in prior art CN 107431219A. The soc system consists of a reactant gas loop and an air loop, both of which are prepared before the gas enters the stack. Heat is recovered by a heat exchanger. These heat exchangers are designed for fuel cell mode operation where the stack is operating under exothermic conditions. Depending on the design, the hot exhaust gas from the stack has a sufficiently high temperature to drive both heat exchangers and to maintain thermal equilibrium in the system. However, in the electrolysis mode, the electrolytic stack is operated in an endothermic state. To maintain thermal balance, 2 heaters were added to provide heat to the gas entering the stack as needed to ensure that the stack was operating within the appropriate temperature range. The system also includes an air input, an air compressor, waste heat utilization, exhaust, a condenser, a hydrogen receiver, a recirculation pump, a hydrogen fuel input, a water inlet, and an evaporator.
In fact, heating the gas to the desired temperature by the heater is a challenge of soc design. These heaters are electrically powered and are large and bulky in order to heat the gas to the required temperature (typically in excess of 700 degrees celsius). The large size of the heater presents problems for system integration as the system also grows larger. The large size of the system is a disadvantage because the large surface area results in significant heat loss and affects system efficiency. Furthermore, the insulation material required to insulate the heater is increased, resulting in a significant cost increase, and the thermal inertia of the insulation material prevents the system from heating up quickly.
Disclosure of Invention
The invention mainly aims to overcome the defects in the prior art, provides a high-temperature reversible solid oxide fuel cell thermal management device and system, and solves the problem of a large and heavy heater required by an rSOC (r-on-chip system). The invention is a compact device that provides both heat recovery and heating.
A first object of the present invention is to provide a thermal management device;
a second object of the present invention is to provide a high temperature reversible solid oxide fuel cell system.
The purpose of the invention is realized by the following technical scheme:
a thermal management device, comprising:
at least one heat exchange member and at least one heating member are combined, and at least one heating element is arranged on the heating member.
Further, the heating parts at least comprise a first heating part and a second heating part; the heat exchange member is disposed between the first heating member and the second heating member.
Further, the heat exchange component is fixedly arranged between the first heating component and the second heating component through a binding band or a welding mode.
Further, the heating elements comprise at least a first heating element and a second heating element; the first heating element is fixedly arranged on the first heating part, and the second heating element is fixedly arranged on the second heating part. Different heating requirements are met by adjusting the starting number or heating power of the heating elements.
Further, the first heating element is arranged on the first heating member by mechanical fixing, and the second heating element is arranged on the second heating member by mechanical fixing.
Further, the mechanical fixing mode includes bolt fixing and flange fixing.
Further, the first heating element is arranged on the first heating component in a mounting and fixing mode, and the second heating element is arranged on the second heating component in a mounting and fixing mode.
The second purpose of the invention is realized by the following technical scheme:
a high-temperature reversible solid oxide fuel cell system comprises a reaction gas loop module, an air loop module and a cell module which are connected; the reactant gas loop module comprises a thermal management device; the air circuit module includes a thermal management device; the battery system comprises an electrolysis system, and the electrolysis system comprises steam electrolysis, CO2 electrolysis or CO-electrolysis.
Further, the reactant gas loop module comprises: a hydrogen fuel input pipeline, a water inlet pipeline, an evaporator, a recirculation pump, a hydrogen receiver and a condenser; the water inlet pipeline is connected with the evaporator to the heat management device, the hydrogen fuel input pipeline is connected with the heat management device, and the heat management device is connected with the condenser, the hydrogen receiver, the recirculation pump and the heat management device; the battery module is connected with the thermal management device; when the system operates, the outlet air of the circulating pump and the outlet air of the evaporator are converged and enter the heat management device, or the hydrogen fuel is input and the outlet air of the circulating pump is converged and enter the heat management device.
Further, the air circuit module includes: the heat management system comprises an air input pipeline, an air compressor, a heat management device, an exhaust pipeline and a heat utilization module; an air input pipe connects the air compressor to the thermal management device; one end of the heat management device is connected with the battery module, and the other end of the heat management device is connected with the heat utilization module to the exhaust pipeline.
Further, the battery module is a SOC stack or MCFC or conductive ceramic battery.
The working process of the invention is as follows:
the gases are sent to a thermal management device before entering the battery module, and the gases are heated by the heat in the exhaust from the battery module. At the same time, heating elements within the thermal management device provide additional heat when needed. For example, during start-up, the heating component may provide heat to heat the system from ambient temperature to an operating temperature. During fuel cell mode, the heating component may be used to maintain thermal equilibrium under part load or other off-design conditions. In the electrolysis mode, the heating element may provide heat to the incoming gas to the desired temperature at the inlet of the stack.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the invention simplifies the structure of the heat management component, reduces the complexity of the system, and reduces the size of the whole system, thereby reducing the use of materials, cost and heat loss, and leading the system to be more energy-saving and cost-effective.
Drawings
FIG. 1 is a block diagram of a thermal management device according to the present invention;
fig. 2 is a block diagram of a high temperature reversible solid oxide fuel cell system according to the present invention.
In the attached drawings, 1 a reaction gas loop module, 2 an air loop module, 3 a battery module, 4 a first heat exchanger, 5 a second heat exchanger, 6 a first heater, 7 a second heater, 8 a hydrogen fuel input pipeline, 9 an air input pipeline, 10 a condenser, 11 a recirculation pump, 12 a water inlet pipeline, 13 an evaporator, 14 a hydrogen receiver, 15 an air compressor, 16 a heat utilization module, 17 an exhaust pipeline, 18 a first heat manager and 19a second heat manager, wherein the first heat manager is composed of the 4 a first heat exchanger and the 6 a first heater, and the 19a second heat manager is composed of the 5 a second heat exchanger and the 7 a second heater.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
Example (b):
a thermal management device, as shown in fig. 1, a first thermal manager 18 is composed of a first heat exchanger 4 and a first heater 6, i.e. the first heat exchanger 4 is a heat exchanging component 4, and the first heater 6 is a heating component 6, comprising:
the heat exchanging means 4 and the heating means 6 are combined, and the heating element 1801 is disposed on said heating means 6.
The heating member 6 includes a first heating member 61 and a second heating member 62; the heat exchanging member 4 is disposed between the first heating member 61 and the second heating member 62 by means of a binding band or welding.
The heating elements 1801 include at least a first heating element, a second heating element; the first heating element is fixedly arranged on the first heating member 61 and the second heating element is fixedly arranged on the second heating member 62. Different heating requirements are met by adjusting the starting number or heating power of the heating elements. Eight heating elements are provided, four of which are arranged on the first heating part 61 by mechanical fastening and four of which are arranged on the second heating part 62 by mechanical fastening; the mechanical fixing mode comprises bolt fixing and flange fixing.
The heating element is a metal electric heating rod or a ceramic heating plate or other heating elements with the same effect.
Example 2:
a heat management device, the second heat manager 19 is composed of the second heat exchanger 5 and the second heater 7, namely the second heat exchanger 5 is the heat exchange part 5, the second heater 7 is the heating part 7, comprising:
the heat exchanging part 5 and the heating part 7 are combined, and the heating element is arranged on the heating part.
The heating part 7 comprises a first heating part and a second heating part; the heat exchanging member 5 is disposed between the first heating member and the second heating member by means of a binding band or welding.
The heating elements at least comprise a first heating element and a second heating element; the first heating element is fixedly arranged on the first heating part, and the second heating element is fixedly arranged on the second heating part. Different heating requirements are met by adjusting the starting number or heating power of the heating elements. Eight heating elements are provided, four of which are arranged in a fixed manner on the first heating part and four of which are arranged in a fixed manner on the second heating part.
The heating element is a metal electric heating rod or a ceramic heating plate or other heating elements with the same effect.
Example 3:
a high-temperature reversible solid oxide fuel cell system is shown in figure 2, and comprises a reaction gas loop module 1, an air loop module 2 and a cell module 3 which are connected in sequence; the reaction gas circuit module 1 comprises a first thermal management device 18; the air circuit module includes a second thermal management device 19.
The reactant gas loop module comprises: a hydrogen fuel input pipeline 8, a water inlet pipeline 12, an evaporator 13, a recirculation pump 11, a hydrogen receiver 14 and a condenser 10; the water inlet pipe 12 connects the evaporator 13 to a thermal management device 18, the hydrogen fuel input pipe 8 is connected to a first thermal management device 18, and the first thermal management device 18 is connected with the condenser 10, the hydrogen receiver 14, the recirculation pump 11 and the first thermal management device 18; the battery module 3 is connected to a first thermal management device 18.
The air circuit module 2 includes: an air input pipe 9, an air compressor 15, a second thermal management device 19, an exhaust pipe 17, a heat utilization module 16; the air input conduit 9 connects the air compressor 15 to the thermal management device 19; one end of the second thermal management device 19 is connected to the battery module 3, and the other end of the second thermal management device 19 is connected to the heat utilization module 16 and the exhaust duct 17.
The battery module 3 is an SOC stack.
Example 4:
a high-temperature reversible solid oxide fuel cell system comprises a reaction gas loop module 1, an air loop module 2 and a cell module 3 which are connected in sequence; the reaction gas circuit module 1 comprises a first thermal management device 18; the air circuit module 2 comprises a second thermal management device 19.
The reactant gas loop module 1 comprises: a hydrogen fuel input pipeline 8, a water inlet pipeline 12, an evaporator 13, a recirculation pump 11, a hydrogen receiver 14 and a condenser 10; the water inlet pipe 12 connects the evaporator 13 to a first thermal management device 18, the hydrogen fuel input pipe 8 is connected to the thermal management device 18, and the first thermal management device 18 is connected with the condenser 10, the hydrogen receiver 14, the recirculation pump 11 and the first thermal management device 18; the battery module 3 is connected to a first thermal management device 18.
The air circuit module 2 includes: an air input pipe 9, an air compressor 15, a second thermal management device 19, an exhaust pipe 17, a heat utilization module 16; the air input conduit 9 connects the air compressor 151 to the second thermal management device 19; one end of the second thermal management device 19 is connected to the battery module 3, and the other end of the second thermal management device 19 is connected to the heat utilization module 16 and the exhaust duct 17.
The cell module 3 is an MCFC or conductive ceramic cell.
Example 5:
an electrolysis system is included in the high-temperature reversible solid oxide fuel cell system, namely the electrolysis system can be used for replacing the high-temperature reversible solid oxide fuel cell system, and comprises the types of steam electrolysis, CO2 electrolysis or CO-electrolysis;
the current system diagram is an soc system, i.e. the system has a battery mode and an electrolysis mode.
Component path through which the reaction gas passes in cell mode:
a hydrogen fuel input pipeline 8, a first heat exchanger 4, a first heater 6, a battery module 3, a first heat exchanger 4, a condenser 10 and a recirculation pump 11;
specifically, in the cell mode, fuel enters the system through a hydrogen fuel input pipeline, and the cell module generates electricity through electrochemical reaction;
component path of steam path in electrolysis mode:
a water inlet pipe 12-an evaporator 13-a first heat exchanger 4-a first heater 6-a battery module 3-a first heat exchanger 4-a condenser 10-a hydrogen receiver 14/a recirculation pump 11;
specifically, in the electrolysis mode, substances required for electrolysis enter the system through the water inlet pipeline and the fuel pipeline, and the battery module performs electrolysis through electrochemical reaction.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. A thermal management device, comprising:
at least one heat exchange member and at least one heating member are combined, and at least one heating element is arranged on the heating member.
2. A thermal management device according to claim 1, wherein the heating means comprises at least a first heating means, a second heating means; the heat exchange member is disposed between the first heating member and the second heating member.
3. A thermal management device according to claim 2, wherein the heat exchange member is fixedly disposed between the first heating member and the second heating member.
4. A thermal management device according to claim 2, wherein the heating elements comprise at least a first heating element, a second heating element; the first heating element is fixedly arranged on the first heating part, and the second heating element is fixedly arranged on the second heating part.
5. A heat management device according to claim 4, wherein the heating element is a metal heating rod or a ceramic heating plate or an infrared heater.
6. A heat management device according to claim 4, wherein the first heating element is arranged on the first heating member by mechanical or mounting means and the second heating element is arranged on the second heating member by mechanical or mounting means.
7. A high-temperature reversible solid oxide fuel cell system is characterized by comprising a reaction gas loop module, an air loop module and a cell module which are connected; the reactant gas loop module comprises the thermal management device of any of claims 1-5; the air circuit module comprises the thermal management device of any of claims 1-5; the battery system comprises an electrolysis system, and the electrolysis system comprises steam electrolysis, CO2 electrolysis or CO-electrolysis.
8. A high temperature reversible solid oxide fuel cell system as claimed in claim 7, wherein the reactant gas loop module comprises: a hydrogen fuel input pipeline, a water inlet pipeline, an evaporator, a recirculation pump, a hydrogen receiver and a condenser; the water inlet pipeline is connected with the evaporator to the heat management device, the hydrogen fuel input pipeline is connected with the heat management device, and the heat management device is connected with the condenser, the hydrogen receiver, the recirculation pump and the heat management device; the battery module is connected with the thermal management device.
9. A high temperature reversible solid oxide fuel cell system as claimed in claim 7, wherein the air circuit module comprises: the heat management system comprises an air input pipeline, an air compressor, a heat management device, an exhaust pipeline and a heat utilization module; an air input pipe connects the air compressor to the thermal management device; one end of the heat management device is connected with the battery module, and the other end of the heat management device is connected with the heat utilization module to the exhaust pipeline.
10. A high temperature reversible solid oxide fuel cell system according to claim 7, characterized in that the cell module is SOC stack or MCFC or conductive ceramic cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210709650.8A CN114976109A (en) | 2022-06-22 | 2022-06-22 | High-temperature reversible solid oxide fuel cell thermal management device and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210709650.8A CN114976109A (en) | 2022-06-22 | 2022-06-22 | High-temperature reversible solid oxide fuel cell thermal management device and system |
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| CN202210709650.8A Pending CN114976109A (en) | 2022-06-22 | 2022-06-22 | High-temperature reversible solid oxide fuel cell thermal management device and system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449250A (en) * | 2015-12-17 | 2016-03-30 | 中国科学院上海硅酸盐研究所 | Test system for kilowatt-scale reversible solid oxide fuel cell-electrolysis cell |
| CN107431219A (en) * | 2015-04-08 | 2017-12-01 | 太阳火有限公司 | High-temperature water vapour electrolytic [SOEC], the thermal management algorithm of SOFC [SOFC] and/or reversible high-temperature fuel cell [rSOC] and high-temperature water vapour electrolytic [SOEC], SOFC [SOFC] and/or reversible high-temperature fuel cell [rSOC] equipment |
| US20190245224A1 (en) * | 2016-09-19 | 2019-08-08 | Commissariat à l'énergie atomique et aux énergies alternatives | System for high-temperature reversible electrolysis of water comprising a hydride tank coupled with the electrolyser |
-
2022
- 2022-06-22 CN CN202210709650.8A patent/CN114976109A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107431219A (en) * | 2015-04-08 | 2017-12-01 | 太阳火有限公司 | High-temperature water vapour electrolytic [SOEC], the thermal management algorithm of SOFC [SOFC] and/or reversible high-temperature fuel cell [rSOC] and high-temperature water vapour electrolytic [SOEC], SOFC [SOFC] and/or reversible high-temperature fuel cell [rSOC] equipment |
| CN105449250A (en) * | 2015-12-17 | 2016-03-30 | 中国科学院上海硅酸盐研究所 | Test system for kilowatt-scale reversible solid oxide fuel cell-electrolysis cell |
| US20190245224A1 (en) * | 2016-09-19 | 2019-08-08 | Commissariat à l'énergie atomique et aux énergies alternatives | System for high-temperature reversible electrolysis of water comprising a hydride tank coupled with the electrolyser |
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