CN210668552U - SOFC gas pipeline and SOFC system automobile - Google Patents

SOFC gas pipeline and SOFC system automobile Download PDF

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Publication number
CN210668552U
CN210668552U CN201921621296.3U CN201921621296U CN210668552U CN 210668552 U CN210668552 U CN 210668552U CN 201921621296 U CN201921621296 U CN 201921621296U CN 210668552 U CN210668552 U CN 210668552U
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CN
China
Prior art keywords
gas
pipeline
sofc
branch
main pipeline
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Active
Application number
CN201921621296.3U
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Chinese (zh)
Inventor
陈松涛
陈曦
陈文淼
宋炳雨
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Weichai Power Co Ltd
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Weichai Power Co Ltd
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Priority to CN201921621296.3U priority Critical patent/CN210668552U/en
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Publication of CN210668552U publication Critical patent/CN210668552U/en
Priority to PCT/IB2020/059003 priority patent/WO2021059233A1/en
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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
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H01M8/04776—Pressure; Flow at auxiliary devices, e.g. reformer, compressor, burner
    • 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
    • H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
    • 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
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H01M8/04753—Pressure; Flow of fuel cell 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
    • H01M8/10—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • 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
    • H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
    • H01M8/04022—Heating by combustion
    • 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
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
    • H01M8/0618—Reforming processes, e.g. autothermal, partial oxidation or steam reforming
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Abstract

The utility model provides a SOFC gas pipeline, which comprises a main pipeline for supplying gas to a galvanic pile hot box, a tail gas combustor branch and a reformer branch which are communicated with the main pipeline; the main pipeline is provided with an electromagnetic valve, and the tail gas combustor branch and the reformer branch are respectively provided with a first MFC and a second MFC; the main pipeline is located the end of giving vent to anger of solenoid valve and still is provided with the voltage regulator device that carries out the steady voltage to the atmospheric pressure in the main pipeline. Set up voltage regulator on the main pipe, voltage regulator carries out the increment steady voltage to the air current capacity in the main pipe, by the air flow in the voltage regulator increase main pipe, when hot start, through voltage regulator stabilization line atmospheric pressure, avoid because when the solenoid valve secondary was gone up the electricity, air current pressure changes between main pipe and the branch road and causes the gas to get into first MFC or second MFC, causes the inside carbon deposit of pile, reduces pile harm. The utility model also provides a SOFC system car.

Description

SOFC gas pipeline and SOFC system automobile
Technical Field
The utility model relates to a SOFC technical field of system, more specifically say, relate to a SOFC gas pipeline and SOFC system car.
Background
In a SOFC (Solid Oxide fuel cell) gas system, there are two ways to supply gas to a stack hot box: one path is supplied to a tail gas combustor; one path is supplied to the reformer. The gas is generally CNG (Compressed natural gas), the FLOW of the two paths of gas needs to be accurately controlled by a MASS FLOW CONTROLLER (MFC), and the two paths of gas are realized by using MFCs with two ranges in a gas system respectively due to different FLOW requirements. When the MFC normally works, the gas pressure at the front end inlet is about 5bar, and the outlet pressure is about 150 mbar.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a SOFC fuel gas control branch in the prior art.
In the SOFC gas pipeline, a three-way pipeline is arranged behind the electromagnetic valve 1 ', and two mass flow controllers MFC2 ' and MFC3 ' which are connected in parallel are arranged behind the three-way pipeline. The electromagnetic valve 1' is used for cutting off gas in the gas path and protecting the MFC in time, and the MFC can control gas flow and cut off a gas pipeline.
When the MFC and the solenoid valve 1 ' are powered off, the MFC correspondingly lags behind, so that after the solenoid valve 1 ' cuts off gas in the pipeline, the gas can continuously leak out from the rear end of the MFC, the loss of the sealed gas between the solenoid valves 1 ' and MFC2 ' and MFC3 ' is caused, the pipeline sections of the MFC2 ' and MFC3 ' and the solenoid valve 1 ' are short, the sealed gas amount is very small, and the pressure of the pipeline sections is reduced due to the lagging reaction of the MFC2 ' and the MFC3 ' and the leakage of the solenoid valve 1 '.
When the pressure at the front ends of the MFC2 'and the MFC 3' is reduced to be less than or equal to 2.6bar, if the electromagnetic valve 1 'is electrified again, the pressure of the gas in the section is rapidly increased back to 5bar, and due to the self structures of the MFC2 and the MFC 3', the sudden change of the pressure can cause the MFC2 'and the MFC 3' to be suddenly opened, so that the gas enters a tail gas combustion chamber and a reformer through the mass flow controllers.
If the change occurs during hot start, fuel gas enters the galvanic pile through the reformer, and carbon deposition inside the galvanic pile is easily caused at high temperature, so that the galvanic pile is damaged.
Therefore, how to prevent the fuel gas in the SOFC fuel gas system from entering the reformer is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a SOFC gas pipeline to prevent gas in the SOFC gas system from entering the reformer; the utility model also provides a SOFC system car.
In order to achieve the above object, the utility model provides a following technical scheme:
an SOFC gas pipeline comprises a main pipeline for supplying gas to a galvanic pile heat box, and a tail gas combustor branch and a reformer branch which are communicated with the main pipeline;
the main pipeline is provided with an electromagnetic valve, and the tail gas combustor branch and the reformer branch are respectively provided with a first MFC and a second MFC;
the main pipeline is positioned at the air outlet end of the electromagnetic valve and is also provided with a pressure stabilizing device for performing incremental pressure stabilization on the air flow capacity in the main pipeline.
Preferably, in the SOFC gas pipeline, an air flow storage region is provided in the pressure stabilizer, the air flow storage region communicating the main pipeline with the tail gas combustor branch and the reformer branch and storing the air flow in the main pipeline.
Preferably, in the SOFC gas pipeline, the pressure stabilizer includes a gas flow filtering device for removing impurities from the gas flow in the main pipeline.
Preferably, in the SOFC gas pipeline, the pressure stabilizer is an oil removal filter.
An SOFC system automobile comprises a vehicle main body, an electric pile heat box arranged in the vehicle main body and an SOFC gas pipeline communicated with the electric pile heat box, wherein the SOFC gas pipeline is the SOFC gas pipeline.
The utility model provides an SOFC gas pipeline, which comprises a main pipeline for supplying gas to a galvanic pile heat box, and a tail gas combustor branch and a reformer branch which are communicated with the main pipeline; the main pipeline is provided with an electromagnetic valve, and the tail gas combustor branch and the reformer branch are respectively provided with a first MFC and a second MFC; the main pipeline is located the end of giving vent to anger of solenoid valve and still is provided with the voltage regulator device that carries out the steady voltage to the atmospheric pressure in the main pipeline. The fuel gas in the SOFC system respectively enters the tail gas combustor branch and the reformer branch through the main pipeline, the electromagnetic valve adjusts the on-off of the main pipeline, the first MFC and the second MFC respectively adjust the ventilation of the two branches, the main pipeline is also provided with a pressure stabilizer, the pressure stabilizer performs incremental pressure stabilization on the air flow capacity in the main pipeline, the pressure stabilizer increases the air flow in the main pipeline, when the hot start is performed, the air pressure of the pipeline is stabilized through the pressure stabilizer, the phenomenon that the fuel gas enters the first MFC or the second MFC due to the change of the air flow pressure between the main pipeline and the branches when the electromagnetic valve is electrified for the second time is avoided, carbon deposition inside a galvanic pile is caused, and the damage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a SOFC fuel gas control branch in the prior art;
fig. 2 is a schematic structural diagram of the SOFC gas pipeline provided by the present invention.
Detailed Description
The utility model discloses a SOFC gas pipeline, which prevents the gas in the SOFC gas system from entering a reformer; the utility model also provides a SOFC system car.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 2, fig. 2 is a schematic structural diagram of the SOFC gas pipeline provided by the present invention.
The utility model provides a SOFC gas pipeline, which comprises a main pipeline 10 for supplying gas to a galvanic pile heat box, and a tail gas combustor branch 11 and a reformer branch 12 which are communicated with the main pipeline 10; the main pipeline 10 is provided with an electromagnetic valve 1, and the tail gas combustor branch 11 and the reformer branch 12 are respectively provided with a first MFC2 and a second MFC 3; the main pipeline 10 is also provided with a pressure stabilizing device 4 for stabilizing the pressure of the air in the main pipeline at the air outlet end of the electromagnetic valve 1. The fuel gas in the SOFC system respectively enters a tail gas combustor branch 11 and a reformer branch 12 through a main pipeline 10, the electromagnetic valve 1 adjusts the on-off of the main pipeline 10, the first MFC2 and the second MFC3 respectively adjust the ventilation of the two branches, the main pipeline 10 is further provided with a pressure stabilizing device 4, the pressure stabilizing device 4 performs incremental pressure stabilization on the air flow capacity in the main pipeline 10, the air flow in the main pipeline 10 is increased by the pressure stabilizing device 4, when the hot start is performed, the pipeline air pressure is stabilized through the pressure stabilizing device 4, the phenomenon that when the electromagnetic valve 1 is electrified for the second time, the fuel gas enters the first MFC2 or the second MFC3 due to the change of the air flow pressure between the main pipeline 10 and the branches is avoided, the carbon deposition inside a pile.
Through setting up the airflow of holding in the voltage regulator device 4 increase main line 1, work as because the secondary of solenoid valve 1 is gone up the electricity, carry out main line 10 and tail gas combustor branch road 11, reformer branch road 12 when carrying out the gas air feed, because the increment steady voltage function of voltage regulator device 4, can avoid the inside atmospheric pressure sudden change of pipeline to cause first MFC2 and second MFC3 to open suddenly, avoid the gas to get into tail gas combustion chamber and reformer, effectively avoid this process to take place when hot start, the gas gets into the pile through the reformer, avoid the inside carbon deposit of pile, reduce to pile harm.
In a specific embodiment of the present disclosure, an airflow storage region is disposed in the pressure stabilizer 4, and the airflow storage region is used for communicating the main pipeline with the tail gas combustor branch 11 and the reformer branch 12 and storing the airflow in the main pipeline 10. Pressure stabilizer 4 embeds the air current storage area, the air current storage area communicates main pipeline 10 simultaneously, tail gas combustor branch 11 and reformer branch 12, thereby solenoid valve 1 and first MFC2 have been increased, the total amount of air current of pipeline between second MFC3, open because the secondary when solenoid valve 1, when causing the air current to lead to suddenly, because the air current storage area in main pipeline 10, can not cause main pipeline 10 internal gas pressure to produce the sudden change, thereby can effectively avoid first MFC2 and second MFC3 to open because anterior segment atmospheric pressure changes suddenly, when can effectively avoiding hot start, the gas gets into the pile through the reformer, guarantee pile safety.
In one embodiment of the present disclosure, the pressure stabilizer 4 includes an airflow filtering device for removing impurities from the airflow in the main pipeline. When the fuel gas is supplied, an airflow filtering device is arranged in the pressure stabilizing device 4, the fuel gas introduced through the main pipeline 10 is purified, the quality of the fuel gas entering the reformer and the tail gas combustor is improved, and the combustion effect is optimized.
Preferably, the pressure stabilizer 4 is an oil removal filter. The deoiling filter both can carry out purification gas quality to the gas that main line 1 let in, and it itself has the accommodation air current space, plays the steady voltage attenuator effect between main line and tail gas combustor branch road, reformer branch road.
Assuming that the temperature is unchanged during the gas supply process of the fuel gas, P1V1 ═ P2V2(P1 is the front-end gas pressure of the solenoid valve, V1 is the front-end volume of the solenoid valve, P2 is the front-end gas pressure of the MFC, and V2 is the front-end volume of the MFC), when the gas flow volume △ V leaked from the first MFC2 and the second MFC3 is very small relative to the steady-pressure volume V in the closed fuel removal filter 4, the reduction of the pressure P of the gas in the section is very small, and when the gas leaked from the first MFC2 and the second MFC3 lags behind is not enough to make P2 ≦ 2.6bar, the mass flow controller is not suddenly opened under the steady pressure, so that the fuel gas stack is protected from entering the stack under the hot start, and the stack is not subjected to carbon deposition.
An SOFC system automobile comprises a vehicle main body, an electric pile heat box arranged in the vehicle main body and an SOFC gas pipeline communicated with the electric pile heat box, wherein the SOFC gas pipeline is the SOFC gas pipeline.
Based on SOFC gas pipeline that provides in the above-mentioned embodiment, the utility model also provides a SOFC system automobile, including the vehicle main part with set up the galvanic pile hot box in the vehicle main part, still including the SOFC gas pipeline of intercommunication galvanic pile hot box, the SOFC gas pipeline that is equipped with in this vehicle main part is the SOFC gas pipeline that provides in the above-mentioned embodiment.
Because the SOFC gas pipeline of the above embodiment is adopted by the SOFC system automobile, please refer to the above embodiment for the beneficial effects brought by the SOFC gas pipeline of the SOFC system automobile.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (5)

1. An SOFC gas pipeline is characterized by comprising a main pipeline for supplying gas to a galvanic pile heat box, and a tail gas combustor branch and a reformer branch which are communicated with the main pipeline;
the main pipeline is provided with an electromagnetic valve, and the tail gas combustor branch and the reformer branch are respectively provided with a first MFC and a second MFC;
the main pipeline is positioned at the air outlet end of the electromagnetic valve and is also provided with a pressure stabilizing device for performing incremental pressure stabilization on the air flow capacity in the main pipeline.
2. The SOFC gas pipeline according to claim 1, wherein a gas flow storage area which is communicated with the main pipeline, the tail gas combustor branch and the reformer branch and is used for storing the gas flow in the main pipeline is arranged in the pressure stabilizer.
3. The SOFC gas pipeline according to claim 2, wherein the pressure stabilizer comprises a gas flow filtering device for removing impurities from the gas flow in the main pipeline.
4. SOFC gas line according to claim 3, characterised by the pressure stabilizing means being an oil removal filter.
5. An SOFC system automobile, comprising a vehicle main body, an electric pile heat box arranged in the vehicle main body and an SOFC gas pipeline communicated with the electric pile heat box, wherein the SOFC gas pipeline is the SOFC gas pipeline as claimed in any one of claims 1 to 4.
CN201921621296.3U 2019-09-26 2019-09-26 SOFC gas pipeline and SOFC system automobile Active CN210668552U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201921621296.3U CN210668552U (en) 2019-09-26 2019-09-26 SOFC gas pipeline and SOFC system automobile
PCT/IB2020/059003 WO2021059233A1 (en) 2019-09-26 2020-09-25 Sofc gas line and sofc system vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921621296.3U CN210668552U (en) 2019-09-26 2019-09-26 SOFC gas pipeline and SOFC system automobile

Publications (1)

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CN210668552U true CN210668552U (en) 2020-06-02

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WO (1) WO2021059233A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6942942B2 (en) * 2002-06-24 2005-09-13 Delphi Technologies, Inc. Solid-oxide fuel cell assembly having a thermal enclosure within a structural enclosure
JP5185589B2 (en) * 2007-10-05 2013-04-17 本田技研工業株式会社 Fuel cell system
KR101303392B1 (en) * 2011-12-21 2013-09-04 주식회사 효성 Gaseous fuel supply device of fuel cell system and fuel cell systemincluding the same
JP6100065B2 (en) * 2013-04-10 2017-03-22 本田技研工業株式会社 Ion exchanger for fuel cell system

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