CN105576273B - A kind of Reversible Cycle green energy resource converting system and conversion method - Google Patents
A kind of Reversible Cycle green energy resource converting system and conversion method Download PDFInfo
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- CN105576273B CN105576273B CN201510926013.6A CN201510926013A CN105576273B CN 105576273 B CN105576273 B CN 105576273B CN 201510926013 A CN201510926013 A CN 201510926013A CN 105576273 B CN105576273 B CN 105576273B
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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
- H01M8/06—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
- H01M8/0656—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants by electrochemical means
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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
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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 invention discloses a kind of Reversible Cycle green energy resource converting system and conversion method, system integration electrochemistry generates electricity and energy storage technology；Including symmetrical SOFC (SSOFC) electricity generation system, symmetrical electrolytic tank of solid oxide (SSOEC) system for producing hydrogen, residual neat recovering system, gas separation system, hydrogen storage system, storage oxygen system, water storage system, high-temperature vapor generation system, auxiliary fuel system, electric power coversion system and corresponding control system.Chemical energy is converted into by electric energy by SSOFC electricity generation systems, AC network is incorporated to by electric power coversion system.Because SSOFC and SSOEC employ symmetrical structure, whole system can change airflow direction so that SSOFC SSOEC systems are changed into SSOEC SSOFC systems, and realization generates electricity and the reversible transformation of energy storage.The reversible energy conversion system of the present invention has big capacity, long lifespan, cost is low, energy conversion efficiency is high and the advantage such as environment-friendly, and the technology of its each chief component is more ripe, has extremely wide application prospect in new energy field.
Description
Technical field
The present invention relates to solid oxide fuel cell power generating system and electrolytic tank of solid oxide hydrogen generating system, especially relate to
And a kind of solid oxide fuel cell power generating system of symmetrical structure and the electrolytic tank of solid oxide hydrogen manufacturing system of symmetrical structure
System and conversion method.
Background technology
SOFC (SOFC) is that a kind of have the advantages that high efficiency, low stain, all solid state new hair
Electric installation.Due to its extensive adaptability to pluralities of fuel gas (hydrogen, hydrocarbon etc.), so having a wide range of applications
Basis.
SOFC performance is largely determined by the catalytic performance of electrode material (negative electrode and anode).Nearest research table
Bright, traditional SOFC configuration can be substituted by a kind of new configuration, and electrode material can be used for negative electrode and anode simultaneously, i.e., symmetrical solid
Oxide body fuel cell (SSOFC).Because it has simple preparation technology, effectively solved by changing airflow direction can
The advantages that electrode surface sulfur poisoning and Carbon deposition, the extensive attention of people is received in the recent period.
The development most direct purpose of SSOFC technologies is exactly simplified SOFC preparation technology, reduces production cost.With it is traditional
SOFC preparation technologies need repeatedly sintering difference, SSOFC only to need once sintered process can by electrode material and electrolyte
Thermal sintering.In addition, anode and negative electrode all use same material, the heat between electrode material and electrolyte is effectively improved
Matching problem.Because in traditional SOFC configurations, anode-electrolyte interface is not only existed, cathode-electrolyte circle also be present
Face.And in SSOFC, only exist one interface of electrode-electric solution matter.Another is using the major advantage of SSOFC configurations：It is logical
The direction for simply changing air and fuel gas is crossed, can solve the problems, such as electrode surface sulfur poisoning and Carbon deposition.It is prior
It is if the electrode material used can retention property be stable under the condition of work repeatedly circulated, then this material can also
It is used to do electrolytic tank of solid oxide (SOEC) electrode material.
Electrolytic tank of solid oxide (SOEC) is then the electrochemical appliance for converting electrical energy into chemical energy, its running
It can be regarded as SOFC inverse process.In the recent period, because SOEC is more more efficient than traditional method for preparing hydrogen at low-temperature, is more of practical significance,
So the interest of numerous researchers is attracted.It can be overcome using the high temperature electrolysis of steam technology of electrolytic tank of solid oxide low
The shortcomings that warm water electrolysis hydrogen production technology, realize efficient hydrogen manufacturing.Because SOEC is SOFC inverse process, and SOEC and SOFC structure classes
Seemingly, it is sandwich sandwich, if so selecting suitable electrode material, then SSOFC can be used for SSOEC to make
Hydrogen.
How above-mentioned SSOFC-SSOEC is integrated into a Reversible Cycle energy conversion system, i.e., the symmetrical reversible energy turns
System is changed, and the system is more suitable for, more excellently uses and work, turns into the emphasis studied at present.
The content of the invention
It is an object of the invention to provide one kind by symmetrical SOFC TRT and symmetrical solid oxidation
The reversible energy conversion system of thing electrolytic cell device for producing hydrogen and the conversion method using the system.The present invention is integrated with electrochemistry
Generating and energy storage technology；Chemical energy is converted into by electric energy by SSOFC electricity generation systems, friendship is incorporated to by electric power coversion system
Flow power network.The reversible energy conversion system of the present invention has big capacity, long lifespan, cost is low, energy conversion efficiency is high and environment
The advantages such as close friend.
The technical solution adopted by the present invention is：
A kind of Reversible Cycle green energy resource converting system, including：The SOFC SSOFC of symmetrical configuration and
Electrolytic tank of solid oxide SSOEC, the SOFC SSOFC and electrolytic tank of solid oxide of the symmetrical configuration
SSOEC anodes are consistent with cathode material, and electrolyte is using cationic conductor and the compacting ceramic film of proton conductor；Wherein：
SOFC SSOFC, for that will generate electricity, generation electric energy is user and electrolytic tank of solid oxide
SSOEC system for producing hydrogen provides electric energy；
Electrolytic tank of solid oxide SSOEC, for high-temperature vapor to be generated into hydrogen under the catalytic action of electrode material
And oxygen；
Fuel supply control system, by controlling the flow velocity of fuel gas that fuel gas is supplied into SOFC
SSOFC generating battery heap；
Heat management system, for heat recovery caused by the generating battery heap by SOFC SSOFC,
Thermal source is provided for high-temperature vapor generation system；
Oxic gas supply control system, the system for producing hydrogen anode-side for collecting electrolytic tank of solid oxide SSOEC are produced
Raw oxygen, the generating battery heap for being SOFC SSOFC supply oxygen；
Gas separation system, for electrolytic tank of solid oxide SSOEC system for producing hydrogen generation hydrogen and water vapour to be mixed
Close gas to be dried, separate, pure hydrogen is provided for SOFC SSOFC generating battery heap；
The SOFC SSOFC is connected by fuel supply control system with fuel storage tank, Gu
The tunnels of oxide body fuel cell SSOFC mono- connect heat management system, another way connection user；Heat management system is through high-temperature vapor
Generation system connects vapor supply control system to electrolytic tank of solid oxide SSOEC, electrolytic tank of solid oxide SSOEC mono-
Oxidized gas supply control system, circulating oxygen system connectivity to SOFC SSOFC, another way pass through successively on road
Gas separation system is communicated to fuel supply control system；
The SOFC SSOFC and electrolytic tank of solid oxide SSOEC are used interchangeably.
Further, the SOFC SSOFC supplies fuel gas by fuel supply control system respectively,
Air is supplied by air intlet, passes through the oxidized gas supply control system of oxygen caused by electrolytic tank of solid oxide SSOEC
Oxygen is supplied with circulating oxygen system.
Further, the SOFC SSOFC is respectively connecting to user and solid by DC/AC converters
Oxidate electrolytic cell SSOEC.
Further, it is provided between the gas separation system and fuel supply control system and stores hydrogen system.
Correspondingly, The present invention gives a kind of Reversible Cycle green energy resource conversion method, including both of which：
Mode A：SSOFC generatings-SSOEC produces hydrogen
1) fuel storage tank is opened, fuel gas hydrogen is passed through solid oxidation by fuel supply control system adjustment control
The flow velocity of the fuel gas of thing fuel cell SSOFC generating battery heap anode-side；
2) oxic gas oxygen simultaneously, is passed through in SOFC SSOFC generating battery heap cathode side, is controlled
Oxygen feeding amount；And air inlet valve is opened, air stream of the regulation into SOFC SSOFC generating battery heap
Amount；
3) heating solid oxide fuel cell SSOFC is to certain temperature, and electric energy passes through DC/AC converters caused by generating
The direct current sent is converted into alternating current, realizes generating function, respectively user and the power supply of SSOEC system for producing hydrogen；
4) electrolytic tank of solid oxide SSOEC system for producing hydrogen is passed through high-temperature vapor in cathode side, is heated to a constant temperature
After degree, then hydrogen and vapor are produced in negative electrode, anode produces oxygen；
Production hydrogen function is realized, hydrogen and oxygen are provided for SOFC SSOFC generating battery heaps；
5) anode produces the oxidized gas supply control system of oxygen and circulating oxygen system to SOFC
SSOFC generating battery heaps；
6) gaseous mixture that hydrogen and vapor are produced in negative electrode is communicated to fuel supply control system through gas separation system
To SOFC SSOFC generating battery heaps；
B-mode：SSOFC production hydrogen-SSOEC generates electricity
7) SOFC SSOFC both ends anode and negative electrode stop being passed through fuel gas and oxic gas respectively, and
Inert gas is passed through as protective atmosphere simultaneously；Then high-temperature vapor is passed through in cathode terminal, then stops being passed through inert gas,
Then be converted to SSOFC production hydrogen-SSOEC power generation modes.
Further, waste heat caused by the SOFC SSOFC produces through heat management system, high-temperature vapor
Raw system, vapor feed system to electrolytic tank of solid oxide SSOEC system for producing hydrogen.Waste heat recovery system is utilized in the process
System and high-temperature vapor generation system produce high-temperature vapor, and vapor is passed through into SSOEC system for producing hydrogen, caused hydrogen and oxygen
Gas is separately stored in hydrogen storage and storage oxygen system, hydrogen and oxygen further can be each led into SSOFC negative electrode and anode enters
Row generates electricity.The water of SSOFC power generation processes generation can be recycled as SSOEC vapor.
The beneficial effects of the present invention are the SOFC (SSOFC) of the symmetrical structure both can conduct
Fuel cell power generating system, electrolytic tank of solid oxide (SSOEC) device for producing hydrogen can also be used as.SSOFC anode-sides are passed through hydrogen
Gas is auxiliary fuel, is passed through air or oxygen and is generated electricity for oxic gas, external circuit can connect load.Heat caused by SSOFC
Reclaimed by heat management system.The heat collected using heat management system is passed through high-temperature vapor generation system and produces vapor.
High-temperature vapor is passed through by SSOEC negative electrodes by high-temperature vapor control system, then then anti-by electrochemistry in SSOEC anodes
Hydrogen should be produced.Again the anode for being passed through SSOFC after hydrogen purification is continued to generate electricity as fuel.Certainly, replacing need to only be passed through
SSOFC-SSOEC airflow direction, then energy conversion mode can be changed to SSOEC-SSOFC.Finally, one is formd chemically
Reversible energy conversion system between (Hydrogen Energy) ← → electric energy.
At present, how SOFC can ideally be combined with SOEC, realizes the dual-use of energy storage and electric discharge, how to improve it
Cyclical stability, free switching, and keep the stabilization of each component capabilities in both modes, and cost how is reduced, optimize
Preparation technology, commercially viable SOFC/SOEC devices are prepared, it is final to realize that it is current to generate electricity with the combination plant of energy storage
One big difficult point and focus.First, SSOFC symmetrical structure can greatly simplify preparation flow, reduce cost.Furthermore it is possible to
Performance of each several part material under hot and humid environment is studied on the basis of SSOFC structure and material.The process can also simultaneously
It is considered as and is stored electric energy in the form of Hydrogen Energy, manufactured H2Fuel cell power generation is may also be used for, is served to large-scale confession
The effect of electric system " peak load shifting ", will be " hydrogen Electricity Federation with " pattern and following hydrogen economy provides the necessary technical support.
SSOFC/SSOEC modularization also for following flexible modulation hydrogen manufacturing scale large-scale and hydrogen fuel cell generate electricity provide it is very big
It is convenient.Further, if SSOEC can use regenerative resource or advanced nuclear reactor to be hopeful reality as energy source
The efficient and extensive preparation of existing hydrogen.In addition, SSOEC technologies can be used for CO2Emission reduction and conversion, in the energy and environment
Problem has extremely vast potential for future development increasingly serious today.
The SSOFC/SSOEC systems of symmetrical structure are only by changing airflow direction, it is possible to realize from SSOFC-SSOEC to
The transformation in SSOEC-SSOFC energy conversions direction so that the Reversible Cycle between electric energy-chemical energy and chemical energy-electric energy turns into
May.
Brief description of the drawings
The present invention is described in further details with reference to the accompanying drawings and detailed description.
Fig. 1 is the reversible energy conversion system structure diagrams of SSOFC-SSOEC of the present invention.
In figure：1st, fuel storage tank；2nd, fuel supply control system；3rd, (generate electricity SOFC SSOFC electricity
Chi Dui)；4th, DC/AC converters；5th, user；6th, heat management system；7th, high-temperature vapor generation system；8th, vapor supply control
System；9th, electrolytic tank of solid oxide SSOEC (system for producing hydrogen)；10th, oxic gas supply control system；11st, circulating oxygen system；
12nd, gas separation system；13rd, hydrogen system is stored.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is described in further details to the present invention.
Shown in Fig. 1, the Reversible Cycle green energy resource converting system, including symmetrical SOFC (SSOFC) 3
(generating battery heap can be used as) and symmetrical electrolytic tank of solid oxide (SSOEC) 9 (system for producing hydrogen can be used as), the solid oxidation
Thing fuel cell SSOFC3 is connected by fuel supply control system 2 with fuel storage tank 1, SOFC
The tunnels of SSOFC3 mono- connect heat management system 6, another way connection user 5；Heat management system 6 connects through high-temperature vapor generation system 7
Water flowing steam supply control system 8 is to electrolytic tank of solid oxide SSOEC 9, and the tunnels of electrolytic tank of solid oxide SSOEC9 mono- are successively
Oxidized gas supply control system 10, circulating oxygen system 11 are communicated to SOFC SSOFC 3, another way warp
Gas separation system 12 connects fuel supply control system 2 to SOFC SSOFC3 generating battery heap.
Wherein, SOFC (SSOFC) 3 supplies fuel gas by fuel supply control system 2 respectively, leads to
Air intlet supply air is crossed, passes through the oxidized gas supply control system 10 of oxygen caused by electrolytic tank of solid oxide SSOEC9
Oxygen is supplied with circulating oxygen system 11；Caused electric energy is by DC/AC converters 4 respectively to user 5 and soild oxide electricity
Solution pond SSOEC 9 powers.
Wherein, it is provided between gas separation system 12 and fuel supply control system 2 and stores hydrogen system 13.
In the present embodiment, the generating battery heap of SOFC (SSOFC) 3 and symmetrical electrolytic tank of solid oxide
(SSOEC) 9 system for producing hydrogen are the completely the same battery piles of same structure and material, can also there was only one in use
Battery pile, different periods, be passed through different gas then can realize respectively generating and energy-storage function.To monocell in battery pile
Requirement be symmetrical structure monocell, and critical piece will have stability good enough in different atmosphere.Made in system
Gas (oxygen, hydrogen and vapor) control system is made up of gas piping, gas gauge and corresponding control valve etc.,
Realize the control and regulation to led to gaseous species and flow velocity.Fuel storage tank is mainly by hydrogen cylinder or hydride hydrogen-storing cylinder
Formed etc. hydrogen storage equipment.Heat management system mainly includes heat exchanger and respective line forms.Hydrogen system is stored then to deposit including hydrogen
Storage device, corresponding control valve and pipeline.
The each mechanism of system is explained in detail separately below：
Fuel storage tank 1, SSOFC is passed through as guarantee fuel, fuel gas is mainly hydrogen；
Fuel supply control system 2, major function are to control the flow velocity of fuel gas；
SOFC SSOFC 3, specifically symmetrical SOFC (SSOFC) generating battery
Heap, it is one of core component of the system.SSOFC basic structure is sandwich, and centre is fine and close electrolytic thin-membrane, will
Suitable symmetry electrode material web printing sprays to electrolyte sheet two sides, monocell piece is made after high-temperature calcination, finally
Monocell piece and other parts are assembled into battery pile.
DC/AC converters 4, its major function are that the direct current for sending SSOFC is converted to alternating current；
User 5, and direct current can provide the user endlessly electric energy after DC/AC converters caused by SSOFC；
Heat management system 6, its major function are to be reclaimed caused heat in SSOFC power generation processes, Ran Houwei
High-temperature vapor generation system provides thermal source；
High-temperature vapor generation system 7, the system mainly utilize the heat aqueous water of heat management system, make only to be changed into
High-temperature vapor.Caused high-temperature vapor can be passed through SSOEC battery piles reaction generation hydrogen and oxygen；
Vapor supply control system 8, its function are mainly to adjust the flow velocity and flow of high-temperature vapor；
Symmetrical electrolytic tank of solid oxide (SSOEC) 9, its structure and SOFC SSOFC3 generating batteries
The structure of heap is consistent, and symmetrical structure, is one of core component of the system.Its major function is in electricity by high-temperature vapor
Hydrogen and oxygen are generated under the catalytic action of pole material；
Oxic gas supply control system 10, its major function are to collect oxygen caused by SSOEC anode-sides, and to oxygen
Flow velocity be adjusted；
Circulating oxygen system 11, its function are mainly the moon being passed through the oxic gas in oxic gas feed system in SSOFC
Pole side；
Gas separation system 12, its major function are that SSOEC generation hydrogen and water vapor mixture is dried, divides
From obtaining pure hydrogen；
Hydrogen system 13 is stored, its major function is caused hydrogen in storage SSOEC, furthermore it is possible to discharge the hydrogen of storage
Gas provides fuel gas to SSOFC.
The main operation principle of the system is as follows：
SSOFC：It is a kind of SOFC of symmetrical structure, the anode and cathode material that such battery uses
Unanimously, electrolyte is using cationic conductor and the compacting ceramic film of proton conductor.Slurry, silk screen is made in electrode material
Print or be sprayed on dielectric film surface, loose structure is formed after high-temperature calcination, beneficial to the diffusion and transmission of gas.After calcining
Small disc type batteries are referred to as monocell, and single battery group is dressed up into the solid-oxide fuel cell stack that battery pile just forms symmetrical structure.
Importantly, the battery pile can be used for symmetrical electrolytic tank of solid oxide (SSOEC).SSOFC is such as used as, then in negative electrode one
End is passed through oxic gas (air), and anode one end is passed through fuel gas in addition, and after heating certain temperature, connection external circuit can is realized
Generate electricity.Transformation is passed through the direction of air-flow, and fuel gas is passed through in negative electrode, and anode is passed through oxic gas, and can continue to generate electricity (can have
Effect ground removes the carbon for being deposited on anode and solves sulfur poisoning phenomenon).SSOEC is such as used as, high-temperature vapor is passed through in cathode side, adds
After hot certain temperature, then hydrogen is produced in negative electrode, anode produces oxygen, realizes production hydrogen function.Such as airflow direction is changed, such as existed
Anode is passed through high-temperature vapor, then corresponding original anode is changed into SSOEC negative electrode, produces hydrogen, and negative electrode originally then becomes
For SSOEC anode, oxygen is produced.If running status is SSOFC, be passed through negative electrode one end for oxic gas, be passed through other end
For fuel gas, be at this moment power generation mode.Now, both ends stop being passed through oxic gas and fuel gas respectively, and are passed through nitrogen simultaneously
Deng inert gas as protective atmosphere；Then high-temperature vapor is passed through in either end, then stops being passed through protective gas, then may be used
Be converted to SSOEC hydrogen-producing modes.
The system is used in conjunction by SSOFC and SSOEC, and the process can also be regarded as is stored up electric energy in the form of Hydrogen Energy
To deposit, made hydrogen can be used for fuel cell power generation again, can play a part of to large-scale electric power system " peak load shifting ",
Very strong technical support will be provided for following hydrogen economy and " hydrogen Electricity Federation with " pattern.With equipment is simple, manufacturing process
Simplify, the high (reality of low cost, energy conversion efficiency>50%) the advantages that and pollution-free., only need to be by more due to being symmetrical structure
SSOFC-SSOEC airflow direction is changed, then energy conversion mode can be changed to SSOEC-SSOFC, and a set of equipment then can be achieved to generate electricity
The Reversible Cycle conversion of the energy is realized with hydrogen manufacturing energy storage free switching.
The function and efficiency comparison of 1 several systems of table：
From the aforegoing it can be seen that Reversible Cycle green energy resource converting system of the present invention is relative to traditional SOFC or SOEC, its
Function can be changed mutually, and generating efficiency and electrolytic efficiency are greatly improved, and the system is suitable to promote the use of.
Claims (6)
- A kind of 1. Reversible Cycle green energy resource converting system, it is characterised in that including：The solid oxide fuel electricity of symmetrical configuration Pond SSOFC and electrolytic tank of solid oxide SSOEC, the SOFC SSOFC and solid oxygen of the symmetrical configuration Compound electrolytic cell SSOEC anodes are consistent with cathode material, and electrolyte is thin using the ceramic of compact of cationic conductor and proton conductor Film；Wherein：SOFC SSOFC, for that will generate electricity, generation electric energy is user and electrolytic tank of solid oxide SSOEC System for producing hydrogen provides electric energy；Electrolytic tank of solid oxide SSOEC, for high-temperature vapor to be generated into hydrogen and oxygen under the catalytic action of electrode material Gas；Fuel supply control system, by controlling the flow velocity of fuel gas that fuel gas is supplied into SOFC SSOFC generating battery heap；Heat management system, for heat recovery caused by the generating battery heap by SOFC SSOFC, for height Temperature steam generation system provides thermal source；Oxic gas supply control system, for collecting caused by electrolytic tank of solid oxide SSOEC system for producing hydrogen anode-side Oxygen, the generating battery heap for being SOFC SSOFC supply oxygen；Gas separation system, for electrolytic tank of solid oxide SSOEC system for producing hydrogen to be produced into hydrogen and water vapor mixture It is dried, separates, pure hydrogen is provided for SOFC SSOFC generating battery heap；The SOFC SSOFC is connected by fuel supply control system with fuel storage tank, solid oxygen The tunnels of compound fuel cell SSOFC mono- connect heat management system, another way connection user；Heat management system produces through high-temperature vapor System connectivity vapor supply control system to electrolytic tank of solid oxide SSOEC, the tunnels of electrolytic tank of solid oxide SSOEC mono- according to Secondary oxidized gas supply control system, circulating oxygen system connectivity are to SOFC SSOFC, and another way is through gas Piece-rate system connects fuel supply control system to SOFC SSOFC；The SOFC SSOFC and electrolytic tank of solid oxide SSOEC are used interchangeably.
- A kind of 2. Reversible Cycle green energy resource converting system according to claim 1, it is characterised in that the solid oxidation Thing fuel cell SSOFC supplies fuel gas by fuel supply control system respectively, air is supplied by air intlet, by solid The oxidized gas supply control system of oxygen caused by oxide body electrolytic cell SSOEC and circulating oxygen system supply oxygen.
- A kind of 3. Reversible Cycle green energy resource converting system according to claim 1, it is characterised in that the solid oxidation Thing fuel cell SSOFC is respectively connecting to user and electrolytic tank of solid oxide SSOEC by DC/AC converters.
- A kind of 4. Reversible Cycle green energy resource converting system according to claim 1, it is characterised in that the gas separation It is provided between system and fuel supply control system and stores hydrogen system.
- 5. a kind of Reversible Cycle green energy resource conversion method, it is characterised in that including both of which：Mode A：SSOFC generatings-SSOEC produces hydrogen1) fuel storage tank is opened, fuel gas hydrogen is passed through into soild oxide by fuel supply control system adjustment control fires Expect the flow velocity of the fuel gas of battery SSOFC generating battery heap anode-side；2) oxic gas oxygen simultaneously, is passed through in SOFC SSOFC generating battery heap cathode side, is controlled into oxygen Amount；And air inlet valve is opened, air mass flow of the regulation into SSOFC generating battery heaps；3) to certain temperature, electric energy caused by generating will be sent out heating solid oxide fuel cell SSOFC by DC/AC converters The direct current gone out is converted to alternating current, realizes generating function, respectively user and the power supply of SSOEC system for producing hydrogen；4) electrolytic tank of solid oxide SSOEC system for producing hydrogen is passed through high-temperature vapor in cathode side, after being heated to certain temperature, Hydrogen and vapor then are produced in negative electrode, anode produces oxygen；Production hydrogen function is realized, is SOFC SSOFC Generating battery heap provides hydrogen and oxygen；5) anode produces the oxidized gas supply control system of oxygen and circulating oxygen system to SOFC SSOFC Generating battery heap；6) gaseous mixture that hydrogen and vapor are produced in negative electrode is communicated to fuel supply control system to admittedly through gas separation system Oxide body fuel cell SSOFC generating battery heaps；B-mode：SSOFC production hydrogen-SSOEC generates electricity7) SOFC SSOFC both ends anode and negative electrode stop being passed through fuel gas and oxic gas respectively, and simultaneously Inert gas is passed through as protective atmosphere；Then high-temperature vapor is passed through in cathode terminal, then stops being passed through inert gas, then turn It is changed to SSOFC production hydrogen-SSOEC power generation modes.
- A kind of 6. Reversible Cycle green energy resource conversion method according to claim 5, it is characterised in that the solid oxidation Waste heat is through heat management system, high-temperature vapor generation system, vapor feed system to solid caused by thing fuel cell SSOFC Oxidate electrolytic cell SSOEC system for producing hydrogen.
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| US8293412B2 (en) * | 2007-11-20 | 2012-10-23 | Bloom Energy Corporation | Enhanced efficiency of a combined SORFC energy storage and fuel generation system |
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