CN213150830U - Power supply system of dual-fuel battery - Google Patents
Power supply system of dual-fuel battery Download PDFInfo
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- CN213150830U CN213150830U CN202022037790.4U CN202022037790U CN213150830U CN 213150830 U CN213150830 U CN 213150830U CN 202022037790 U CN202022037790 U CN 202022037790U CN 213150830 U CN213150830 U CN 213150830U
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- 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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Abstract
The utility model provides a dual fuel cell power supply system, include: the system comprises a gas pipeline, a pressure swing adsorption device, a proton exchange membrane fuel cell, a solid oxide fuel cell and an inverter; one end of the pressure swing adsorption device is connected with the fuel gas pipeline, and the other end of the pressure swing adsorption device is connected with the proton exchange membrane fuel cell and the solid oxide fuel cell; the pressure swing adsorption device is used for separating the hydrogen-doped natural gas in the gas pipeline into hydrogen and natural gas, the separated hydrogen is introduced into the proton exchange membrane fuel cell, and the separated natural gas is introduced into the solid oxide fuel cell; the inverter is used for converting the direct current output by the proton exchange membrane fuel cell and the solid oxide fuel cell into alternating current. The utility model discloses in, proton exchange membrane fuel cell is as starting power generation and peak shaving electricity generation usefulness, and solid oxide fuel cell is used as the base charge electricity generation, realizes opening the purpose of usefulness promptly.
Description
Technical Field
The utility model relates to a fuel cell technical field especially relates to a dual fuel cell power supply system.
Background
The fuel cell is used as a novel chemical power supply, and has the main advantages of high power generation efficiency, fuel diversity, zero carbon circulation, few mechanical parts, low noise, good engineering design elasticity, high modularization integration level, convenient maintenance and closed cycle use.
Currently most widely used are Proton Exchange Membrane Fuel Cells (PEMFC) and Solid Oxide Fuel Cells (SOFC), both of which have their respective advantages and disadvantages. The operating temperature of the Proton Exchange Membrane Fuel Cell (PEMFC) is the lowest among all fuel cells. PEMFCs have a number of advantages over other fuel cells: (1) a portable device power supply. PEMFCs have the advantages of short charging (refueling) time, quietness, and reliability, and can serve as portable power sources. (2) As a power source for transportation, the PEMFC has high current density and high specific power, and the technology of the electric locomotive taking the PEMFC as the power source becomes a research hotspot. (3) And generating power in small fixed places. The PEMFC has high reliability, flexible use, and no pollution and noise, and is very suitable for use as a backup power source for public facilities and residential homes. Problems with Proton Exchange Membrane Fuel Cells (PEMFCs) are: (1) fuel sources and hydrogen storage and transportation issues. (2) Cost and lifetime issues. Both fuel source composition control and catalyst poisoning resistance add complexity and cost to the overall system of the fuel cell. (3) Meanwhile, the durability of the whole stack of the PEMFC in actual working condition operation is a very complicated problem.
Solid oxide cell SOFCs are currently recognized as the most energy efficient fuel cell devices, with the electrolyte being a composite ceramic oxide having oxygen ion conductivity at high temperatures (800-. The all-solid structure of the SOFC avoids the problems of corrosion, loss, and sealing caused by the electrolyte in Alkaline Fuel Cells (AFC), Phosphoric Acid Fuel Cells (PAFC), and Molten Carbonate Fuel Cells (MCFC). Meanwhile, the high working temperature enables the catalyst to be selected from low-cost transition metals and the comprehensive energy efficiency to reach more than 90%. However, solid oxide cell SOFC has some insurmountable disadvantages, firstly, the high temperature of SOFC brings a series of problems including oxidation resistance, mechanical strength and galvanic pile sealing, and secondly, the high temperature of SOFC brings long response time of cell, which can not be realized and used immediately, and the electrolyte needs fuel to burn and heat, which results in long waiting time and slow response.
Accordingly, the prior art remains to be improved and developed.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned prior art not enough, the utility model aims at providing a dual fuel cell power supply system, aim at solving PEMFC and have the problem that hydrogen is difficult to store and transport, and SOFC has the problem that can't realize just opening promptly.
The technical scheme of the utility model as follows:
a dual fuel battery power supply system, comprising: the system comprises a gas pipeline, a pressure swing adsorption device, a proton exchange membrane fuel cell, a solid oxide fuel cell and an inverter;
the fuel gas pipeline is provided with hydrogen-doped natural gas;
one end of the pressure swing adsorption device is connected with the fuel gas pipeline, and the other end of the pressure swing adsorption device is connected with the proton exchange membrane fuel cell and the solid oxide fuel cell;
the pressure swing adsorption device is used for separating the hydrogen-doped natural gas in the gas pipeline into hydrogen and natural gas, the separated hydrogen is introduced into the proton exchange membrane fuel cell for power generation, and the separated natural gas is introduced into the solid oxide fuel cell for power generation;
the inverter is connected with both the proton exchange membrane fuel cell and the solid oxide fuel cell, and is used for converting direct current output by the proton exchange membrane fuel cell and the solid oxide fuel cell into alternating current.
Optionally, a branch pipeline is arranged on the gas pipeline, and one end of the pressure swing adsorption device is connected with the gas pipeline through the branch pipeline.
Optionally, a pressure relief valve is provided on the branch line conduit.
Optionally, the pressure reducing valve is used for reducing the pressure of the hydrogen-doped natural gas introduced into the pressure swing adsorption device to 0.2-0.4 MPa.
Optionally, the power of the proton exchange membrane fuel cell is 5-10 KW.
Optionally, the solid oxide fuel cell has a power of 10KW to 15 KW.
Optionally, the inverter is configured to change the dc power output by the pem fuel cell and the sofc into 220v ac power.
Optionally, the pressure swing adsorption device is connected with the proton exchange membrane fuel cell through a hydrogen pipeline.
Optionally, a valve is arranged on the hydrogen pipeline and used for opening or closing the hydrogen pipeline.
Optionally, the power supply system is for small area, building or home power.
Has the advantages that: the utility model discloses separate out hydrogen and natural gas (methane) with the pressure swing adsorption equipment for the natural gas that adds hydrogen among the gas pipeline, and couple Proton Exchange Membrane Fuel Cell (PEMFC) and Solid Oxide Fuel Cell (SOFC) in parallel, hydrogen and natural gas supply two battery systems respectively, SOFC is used as the base load electricity generation, PEMFC is used as peak regulation electricity generation and start-up electricity generation, the dc-to-ac converter transform for the direct current that will send again is the alternating current, full play PEMFC and SOFC's advantage, compensate respective defect, thereby realize to regional system, the purpose of building system or the stable power supply of family.
Drawings
Fig. 1 is a schematic structural diagram of a dual-fuel battery power supply system provided by an embodiment of the present invention.
Detailed Description
The utility model provides a dual fuel cell power supply system, for making the utility model discloses a purpose, technical scheme and effect are clearer, more clear and definite, it is following right the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the utility model provides a dual fuel cell power supply system, wherein, as shown in figure 1, include: the device comprises a gas pipeline 1, a pressure swing adsorption device 2, a proton exchange membrane fuel cell 3, a solid oxide fuel cell 4 and an inverter 5;
the gas pipeline 1 is filled with hydrogen-doped natural gas;
one end of the pressure swing adsorption device 2 is connected with the fuel gas pipeline 1, and the other end of the pressure swing adsorption device 2 is connected with the proton exchange membrane fuel cell 3 and the solid oxide fuel cell 4;
the pressure swing adsorption device 2 is used for separating the hydrogen-doped natural gas in the gas pipeline 1 into hydrogen and natural gas, the separated hydrogen is introduced into the proton exchange membrane fuel cell 3 for power generation, and the separated natural gas is introduced into the solid oxide fuel cell 4 for power generation;
the inverter 5 is connected to both the proton exchange membrane fuel cell 3 and the solid oxide fuel cell 4, and the inverter 5 is configured to change the direct current output by the proton exchange membrane fuel cell 3 and the solid oxide fuel cell 4 into an alternating current.
The embodiment of the utility model provides an in, have the natural gas that dopes among the gas pipeline, this natural gas that dopes indicates the natural gas that dopes hydrogen, and hydrogen volume accounts for about 20% among the gas pipeline.
The embodiment of the utility model provides an in, the natural gas that dopes among the gas pipeline lets in pressure swing adsorption equipment (has suitable pressure swing adsorption material), and this pressure swing adsorption equipment will dope the natural gas separation of hydrogen into hydrogen and natural gas. It is noted that the hydrogen is high purity hydrogen with a purity of 99.999%, whereas natural gas has no requirement for purity and may contain small amounts of hydrogen and other alkanes. And introducing the separated high-purity hydrogen into the proton exchange membrane fuel cell to generate electricity, and introducing the separated natural gas into the solid oxide fuel cell to generate electricity. The direct current generated by the proton exchange membrane fuel cell and the solid oxide fuel cell is connected to an inverter, and the direct current is changed into alternating current through the inverter and is input to a user terminal.
Wherein, the solid oxide fuel cell is used for base charge power generation, and the proton exchange membrane fuel cell is used for starting power generation and peak shaving power generation:
when the power generation system is started, the separated hydrogen is introduced into the proton exchange membrane fuel cell, and the proton exchange membrane fuel cell starts to generate power; meanwhile, the electrolyte in the solid oxide fuel cell starts to be heated, when the temperature of the electrolyte in the solid oxide fuel cell is heated to a temperature capable of being started, the hydrogen pipeline is closed, the proton exchange membrane fuel cell stops working, the solid oxide fuel cell starts to work, and the purpose that the fuel cell system is started and used immediately is achieved.
When the electricity consumption of the electricity end is increased and the electricity load exceeds the rated power of the solid oxide fuel cell, the hydrogen pipeline is opened, the proton exchange membrane fuel cell starts to work, and the proton exchange membrane fuel cell plays a role in peak shaving power generation.
In one embodiment, the pem fuel cell 3 has a power of 5KW to 10KW, such as 5 KW.
In one embodiment, the solid oxide fuel cell 4 has a power of 10KW to 15KW, such as 10 KW.
In one embodiment, a branch pipeline 6 is disposed on the gas pipeline 1, and one end of the pressure swing adsorption device 2 is connected to the gas pipeline 1 through the branch pipeline 6. The embodiment of the utility model provides an in, draw forth branch pipeline on the gas pipeline, pressure swing adsorption equipment passes through branch pipeline with the gas pipeline links to each other.
In one embodiment, a pressure relief valve 7 is provided on the branch line pipe 6. The embodiment of the utility model provides an in, set up the relief pressure valve on the branch pipeline, through the pressure relief pressure valve will let in pressure swing adsorption device's the pressure of hydrogen-doped natural gas and decompress. In one embodiment, the pressure reducing valve 7 is used to reduce the pressure of the hydrogen-loaded natural gas introduced into the pressure swing adsorption unit 2 to an intermediate pressure of about 0.2 to 0.4 MPa.
In one embodiment, the pressure swing adsorption unit 2 is connected to the pem fuel cell 3 via a hydrogen line 8. In one embodiment, a valve (not shown) is provided on the hydrogen gas pipe 8 for opening or closing the hydrogen gas pipe 8.
The embodiment of the utility model provides an in, the natural gas that dopes among the gas pipeline lets in pressure swing adsorption equipment, and this pressure swing adsorption equipment will dope the natural gas separation of hydrogen and become hydrogen and natural gas. And introducing the separated high-purity hydrogen into the proton exchange membrane fuel cell to generate electricity, and introducing the separated natural gas into the solid oxide fuel cell to generate electricity. The direct current generated by the proton exchange membrane fuel cell and the solid oxide fuel cell is connected to an inverter, and the direct current is changed into 220 volt alternating current by the inverter and is input to a user terminal.
Compared with the prior art, the utility model discloses power supply system has following advantage:
1. the fuel gas is conveyed by utilizing the hydrogen-doped fuel gas pipeline, namely the fuel gas pipeline comprises natural gas and hydrogen, so that the problem that the hydrogen is difficult to store and transport is solved;
2. the pressure swing adsorption device is used for separating hydrogen and natural gas, and the purity of the natural gas has no requirement except that the purity of the hydrogen is higher;
3. a proton exchange membrane fuel cell and a solid oxide fuel cell are connected in parallel to serve as a power supply; the proton exchange membrane fuel cell is used for starting power generation and peak shaving power generation, and the solid oxide fuel cell is used for base charge power generation, so that the purpose of using immediately after starting is realized;
4. the direct current is output as a 220V alternating current power supply through an inverter;
5. the dual-fuel battery power supply system is mainly used as a small-area type and building type power supply system, and can also be used as a household power supply system.
It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. A dual fuel battery power supply system, comprising: the system comprises a gas pipeline, a pressure swing adsorption device, a proton exchange membrane fuel cell, a solid oxide fuel cell and an inverter;
the fuel gas pipeline is provided with hydrogen-doped natural gas;
one end of the pressure swing adsorption device is connected with the fuel gas pipeline, and the other end of the pressure swing adsorption device is connected with the proton exchange membrane fuel cell and the solid oxide fuel cell;
the pressure swing adsorption device is used for separating the hydrogen-doped natural gas in the gas pipeline into hydrogen and natural gas, the separated hydrogen is introduced into the proton exchange membrane fuel cell for power generation, and the separated natural gas is introduced into the solid oxide fuel cell for power generation;
the inverter is connected with both the proton exchange membrane fuel cell and the solid oxide fuel cell, and is used for converting direct current output by the proton exchange membrane fuel cell and the solid oxide fuel cell into alternating current.
2. The dual fuel battery power supply system as claimed in claim 1, wherein a branch pipeline is arranged on the fuel gas pipeline, and one end of the pressure swing adsorption device is connected with the fuel gas pipeline through the branch pipeline.
3. The dual fuel battery power supply system of claim 2 wherein a pressure relief valve is provided on the branch line conduit.
4. The dual fuel battery power supply system of claim 3 wherein the pressure reducing valve is configured to reduce the pressure of the hydrogen-loaded natural gas introduced into the pressure swing adsorption unit to 0.2-0.4 MPa.
5. A dual fuel cell power supply system in accordance with claim 1 wherein the pem fuel cell power is 5-10 KW.
6. A dual fuel cell power supply system according to claim 1, wherein the solid oxide fuel cell power is 10KW-15 KW.
7. The dual fuel cell power supply system of claim 1, wherein the inverter is configured to convert the direct current output by the pem fuel cell and the sofc to 220 vac.
8. The dual fuel cell power supply system of claim 1, wherein the pressure swing adsorption unit is connected to the pem fuel cell through a hydrogen gas line.
9. The dual fuel battery power supply system of claim 8, wherein a valve is disposed on the hydrogen gas conduit for opening or closing the hydrogen gas conduit.
10. The dual fuel battery power supply system of claim 1, wherein the power supply system is used for district type power supply, building type power supply, or home power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022037790.4U CN213150830U (en) | 2020-09-16 | 2020-09-16 | Power supply system of dual-fuel battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022037790.4U CN213150830U (en) | 2020-09-16 | 2020-09-16 | Power supply system of dual-fuel battery |
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| CN213150830U true CN213150830U (en) | 2021-05-07 |
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| CN202022037790.4U Active CN213150830U (en) | 2020-09-16 | 2020-09-16 | Power supply system of dual-fuel battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060899A (en) * | 2021-11-29 | 2022-02-18 | 北京华能长江环保科技研究院有限公司 | Distributed energy utilization system for heating and power generation |
| CN117374358A (en) * | 2023-09-26 | 2024-01-09 | 广东佛燃科技有限公司 | Solid oxide fuel cell power generation system operated by double cell stacks |
-
2020
- 2020-09-16 CN CN202022037790.4U patent/CN213150830U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060899A (en) * | 2021-11-29 | 2022-02-18 | 北京华能长江环保科技研究院有限公司 | Distributed energy utilization system for heating and power generation |
| CN117374358A (en) * | 2023-09-26 | 2024-01-09 | 广东佛燃科技有限公司 | Solid oxide fuel cell power generation system operated by double cell stacks |
| CN117374358B (en) * | 2023-09-26 | 2024-05-31 | 广东佛燃科技有限公司 | Solid oxide fuel cell power generation system operated by double cell stacks |
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