CN109686998A - Association circulating power generation system based on the cooling fuel cell of gas turbine - Google Patents
Association circulating power generation system based on the cooling fuel cell of gas turbine Download PDFInfo
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- CN109686998A CN109686998A CN201910120224.9A CN201910120224A CN109686998A CN 109686998 A CN109686998 A CN 109686998A CN 201910120224 A CN201910120224 A CN 201910120224A CN 109686998 A CN109686998 A CN 109686998A
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- 239000000446 fuel Substances 0.000 title claims abstract description 55
- 238000001816 cooling Methods 0.000 title claims abstract description 33
- 238000010248 power generation Methods 0.000 title claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 54
- 238000002485 combustion reaction Methods 0.000 claims abstract description 33
- 230000005611 electricity Effects 0.000 claims abstract description 28
- 230000008676 import Effects 0.000 claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 238000002407 reforming Methods 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 9
- 239000002737 fuel gas Substances 0.000 claims abstract description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 239000002912 waste gas Substances 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 5
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000010354 integration Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 239000003345 natural gas Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
-
- 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
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
- H01M8/04074—Heat exchange unit structures specially adapted for fuel cell
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The present invention relates to field of fuel cell technology, specifically disclose a kind of association circulating power generation system based on the cooling fuel cell of gas turbine, including fuel gas supply protection system, air supply system and electricity production system, the electricity production system includes: premix evaporator；Exhaust combustion heater, the exhaust combustion heater include reforming heat exchange unit, exhaust combustion unit and air preheat unit；Pile main body, the pile main body includes anode portion and negative pole part；Turbo charging installation, the turbo charging installation include air compressor machine and the first turbine for driving the air compressor machine；Turbine generator, the turbine generator is including the second turbine and by the described second turbo-driven generator, the outlet of the import of second turbine and first turbine.Association circulating power generation system provided by the invention based on the cooling fuel cell of gas turbine, can effectively improve the service efficiency of the energy, achieve the effect that environmental protection and energy saving.
Description
Technical field
The present invention relates to field of fuel cell technology more particularly to a kind of joints based on the cooling fuel cell of gas turbine
Cycle generating system.
Background technique
Greenhouse gases are the main reasons for leading to global warming, are led in the climate change conference of Paris on December 12nd, 2015
The main target of " Paris agreement " crossed be by the control of this century global average temperature ascensional range within 2 DEG C, and will be global
Control that the temperature rises is on preceding industrialization period is horizontal within 1.5 DEG C.Make a general survey of natural gas hair efficiently and more clean at present
Power technology, the i.e. distributing-supplying-energy system of category fuel cell combined heat and power circulation, with traditional Thermal generation unit and fuel cell
The energy loss of CHP system compares, if two kinds of generation technology input energy sources are all fixed as 100%, using traditional coal-fired
Generation technology, only 40% energy switch to electric power output, remaining 60% energy is emitted into atmospheric environment in the form of waste heat；Instead
It has 50% directly to export with form of power using fuel cell cogeneration of heat and power generation technology, separately has 40% energy with recycling
Using approach, drive other energy devices again in a manner of heat source or cold source, finally only 20% energy is in the form of waste heat
It is emitted into atmospheric environment.Since the power generation process of fuel cell co-generation unit only generates water and waste heat, CO, NOxEqual dirts
The discharge amount for contaminating gas is few, therefore for domain type distributed power generation and the generation for blocking greenhouse gases, which has more
Clean, more energy efficient advantage.
Solid oxide fuel cell (Solid Oxide Fuel Cell, abbreviation SOFC) is that a kind of Novel clean is efficient
Generating equipment, have many advantages, such as that fuel tolerance is wide, the efficient hair of the fuel such as natural gas, coal gas can be widely used in
Electricity can by the fuel exhaust gas not reacted completely that anode reaction gives off due to its (800-1000 DEG C) operation at high temperature
To combine gas turbine and steam turbine cogeneration, and the joint that heat may be implemented utilizes.It is most widely used at present
For gaseous fuel methane (CH4) and hydrogen (H2), for H2Need complicated preparation process, and CH4Rich reserves can be used for
The fuel of SOFC realizes clean and effective power generation.
Solid-oxide fuel cell has following technical advantage:
(a) fuel range of choice is wide, such as natural gas, coal gas, raw matter alcohol, diesel oil, gasoline hydrocarbon is can
For selecting fuel source.
(b) cell operating temperature is high (800-1000 DEG C), the reaction speed of electrode catalyst can be improved, so that pile itself has
There is internal fuel reformation function, it is higher for impurity (CO or S content etc.) permission.
(c) electrode catalyst is without the use of noble metal, and cost of manufacture is greatly reduced.
(d) climate state limit, system can not uninterruptedly be continuously run for 24 hours, and actual power hourage is high.
(e) SOFC is compared to other type renewable sources of energy, such as: solar energy or wind-power electricity generation, be not required to by weather environment because
Element and influence efficiency, also without the carbon emission air pollution problems inherent of conventional diesel generator
(f) high-temperature tail gas can burn again and arrange in pairs or groups to form combined cycle system with combustion gas turbine, and generating efficiency is up to 70
~80%.
(g) wide using size range, SOFC system can flexibly be used in building, hospital, industrial park of residential quarter etc.,
The electric power and hot water of quiet operation environment are provided.When in 1-100kW scale, the small distributed that can be used as independent work produces electricity system
System；Also it can make MW grades or more of large size fixation type power plant electricity production system.
It is discussed with electricity in fuel cell operation with the yield ratio of heat, the system survey of foundation sunfire company, Germany
Test result discovery, SOFC generated energy about 1.3kW, while the heat that also can produce 2.75kW is used for recycling, the electric heating output ratio
About 1:1.83；And electric heating output ratio only about 1:1 in PEMFC (Proton Exchange Membrane Fuel Cells) power generation process；Compared to PEMFC,
Hotspot stress more preferably be can get using SOFC as power generation core for compound power-generating application.
However, existing fuel cell tail gas temperature is higher, and the fuel (CH not reacted completely containing part wherein4) and
Fuel byproduct (CO and H2) etc., which originally can burn away and generate heat, but is often taken as exhaust gas and is arranged
Empty or burning processing, so as to cause the waste of the energy, is also unfavorable for environmental protection.
Summary of the invention
It is an advantage of the invention to provide a kind of combined cycle generation systems based on the cooling fuel cell of gas turbine
System, can effectively improve the service efficiency of the energy, achieve the effect that environmental protection and energy saving.
To achieve these objectives, the present invention provides a kind of combined cycle generation system based on the cooling fuel cell of gas turbine
System, including fuel gas supply protect system, air supply system and produce electricity system, and the electricity production system includes:
Evaporator is premixed, the fuel gas supply protection system is used to provide methane, hydrogen, protection for the premix evaporator
Gas and deionized water；
Exhaust combustion heater, the exhaust combustion heater include reforming heat exchange unit, exhaust combustion unit and air
Preheating unit, the exhaust combustion unit are used to provide heat for the reformation heat exchange unit and air preheat unit；It is described heavy
The import of whole heat exchange unit is connected to the gas outlet of the premix evaporator；
Pile main body, the pile main body include anode portion and negative pole part, and the import of the anode portion is changed with the reformation
The outlet of hot cell, the import of the exhaust combustion unit and the outlet of the anode portion；
Turbo charging installation, the turbo charging installation include air compressor machine and the first whirlpool for driving the air compressor machine
Wheel；The import of the air compressor machine is connected to the air supply system, and it is pre- that the outlet of the air compressor machine passes sequentially through the air
The inlet communication of hot cell and the negative pole part and the exhaust combustion unit；The import of first turbine and the tail gas fire
Burn the outlet of unit；
Turbine generator, the turbine generator is including the second turbine and by the described second turbo-driven power generation
Machine, the outlet of the import of second turbine and first turbine.
Preferably, the electricity production system further include:
The import of reformer, the anode portion is connected by the reformer and the outlet for reforming heat exchange unit
It is logical.
Preferably, the electricity production system further include:
The import of external cooling unit, the air compressor machine passes through the external cooling unit and the air preheat unit
Inlet communication.
Preferably, the negative pole part, anode portion, reformer and external cooling unit are from top to bottom arranged to form entirety
Formula structure.
Preferably, the electricity production system further include:
First inverter, first inverter are connect with the pile main body, the direct current for generating pile main body
Electricity is changed into alternating current.
Preferably, the electricity production system further include:
Second inverter, second inverter are connect with the generator, the exchange for generating the generator
Electric frequency reducing output.
Preferably, the outlet of second turbine is connected to the exhaust gas inlet of the premix evaporator.
Preferably, further includes:
Pipeline is emptied, the emptying pipeline is connected to the waste gas outlet of the premix evaporator, the exhaust gas inlet and institute
State waste gas outlet connection.
The beneficial effects of the present invention are: a kind of combined cycle generation system based on the cooling fuel cell of gas turbine is provided
System, have it is following the utility model has the advantages that
1. the fuel availability of the thermal efficiency of system, the conversion ratio of fuel and pile can be improved, and stable operation is kept,
The average utilization of CH4 reaches 70% or more, and when fuel availability is 72%, the DIE Temperature of pile main body maintains 850
~860 DEG C of stable electric generations；When gas turbine engine systems work together, the net generating efficiency of whole system is more than 80%；
2. after fuel cell system and gas turbine engine systems circulation are combined, due to the raising of system integration degree,
The space for reducing air compressor machine, reformer, exhaust combustion unit, air preheat unit, saves equipment pipe and heat preservation is empty
Between, the relatively individual pile electricity production system of overall space reduces 30% or more.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural frames for the association circulating power generation system based on the cooling fuel cell of gas turbine that embodiment provides
Figure.
In figure:
1, fuel gas supply protects system；
2, air supply system；
3, system is produced electricity；
301, evaporator is premixed；302, exhaust combustion heater；303, anode portion；304, negative pole part；305, air compressor machine；
306, the first turbine；307, the second turbine；308, generator；309, reformer；310, external cooling unit；311, first is inverse
Become device；312, the second inverter；313, pipeline is emptied.
Specific embodiment
To enable the purpose of the present invention, feature, advantage more obvious and understandable, implement below in conjunction with the present invention
Attached drawing in example, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that reality disclosed below
Applying example is only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
In the description of the present invention, it is to be understood that, when a component is considered as " connection " another component, it can
To be directly to another component or may be simultaneously present the component being centrally located.When a component is considered as " setting
Set " another component, it, which can be, is set up directly on another component or may be simultaneously present the component being centrally located.
In addition, the indicating positions such as term " length " " short " "inner" "outside" or positional relationship for the orientation that is shown based on attached drawing or
Person's positional relationship is merely for convenience of the description present invention, rather than the device or original part of indication or suggestion meaning must have this
Specific orientation is operated with specific orientation construction, should not be understood as limitation of the invention with this.
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
Referring to Fig. 1, the present embodiment provides a kind of association circulating power generation system based on the cooling fuel cell of gas turbine, packets
Include fuel gas supply protection system 1, air supply system 2 and electricity production system 3.
The electricity production system 3 includes premix evaporator 301, exhaust combustion heater 302, pile main body, turbocharging dress
Set, turbine generator, the first inverter 311, the second inverter 312 and emptying pipeline 313.The supply protection system is used for
Methane, hydrogen, protection gas and deionized water are provided for the premix evaporator 301, generally, protective gas includes 95% N2
With 5% H2.The exhaust combustion heater 302 successively includes reforming heat exchange unit, exhaust combustion unit and sky from bottom to up
Gas preheating unit, the exhaust combustion unit are used to provide heat for the reformation heat exchange unit and air preheat unit；It is described
The import for reforming heat exchange unit is connected to the gas outlet of the premix evaporator 301.The pile main body includes anode portion 303
With negative pole part 304, the import of the anode portion 303 and the outlet for reforming heat exchange unit, the exhaust combustion unit
Import and the anode portion 303 outlet.The turbo charging installation includes air compressor machine 305 and for driving the sky
First turbine 306 of press 305；The import of the air compressor machine 305 is connected to the air supply system 2, the air compressor machine 305
Outlet pass sequentially through the inlet communication of the air preheat unit and the negative pole part 304 and the exhaust combustion unit；Institute
State the import of the first turbine 306 and the outlet of the exhaust combustion unit.The turbine generator includes the second turbine
307 and the generator 308 that is driven by second turbine 307, the import of second turbine 307 and first turbine 306
Outlet, second turbine 307 outlet with it is described premix evaporator 301 exhaust gas inlet be connected to.Described first is inverse
Become device 311 to connect with the pile main body, the direct current for generating pile main body is changed into alternating current.Second inversion
Device 312 is connect with the generator 308, the alternating current frequency reducing output for generating the generator 308.The emptying pipeline
313 are connected to the waste gas outlet of the premix evaporator 301, and the exhaust gas inlet is connected to the waste gas outlet；Preferably, in advance
Mixed evaporator 301 is shell-and-tube heat exchanger, and the fuel gas inlet and gas outlet for premixing evaporator 301 belong to tube side channel, is premixed
The exhaust gas inlet and waste gas outlet of evaporator 301 belong to shell side channel.
Specifically, the exhaust temperature for leaving pile main body is higher, and wherein containing the fuel and combustion not reacted completely partially
Expect byproduct etc., which can burn away and generate heat, so the present embodiment is by anode portion 303 and negative pole part 304 2
Inlet communication of the outlet of person with exhaust combustion unit generates high-temperature flue gas and enters turbo charging installation acting, air compressor machine 305
External cooling source of the compressed air of generation as pile main body, the compressed gas that turbo charging installation provides pass through multistage operating
Enter turbine generator afterwards to do work again, turbine generator backheat premixes methane, hydrogen, protection gas in evaporator 301
And deionized water, so that the thermal efficiency of whole system reaches 80% or more.Preferably, the import of exhaust combustion unit can be with
There are two, one with the outlet of anode portion 303, be mainly passed through flammable tail gas；The outlet of another and negative pole part 304 connects
It is logical, mainly it is passed through high temperature oxygen denuded air.
Preferably, the electricity production system 3 further includes reformer 309 and external cooling unit 310.The anode portion 303
Import pass through the reformer 309 and the outlet for reforming heat exchange unit.The import of the air compressor machine 305 passes through
The inlet communication of the external cooling unit 310 and the air preheat unit.Further, the negative pole part 304, anode portion
303, reformer 309 and external cooling unit 310 are from top to bottom arranged to form monolithic construction.
Specifically, it is the integrated level for improving system, reduces the device space, the present embodiment is closed using a series of structure
At, such as: it is 1. that external cooling unit 310, reformer 309, negative pole part 304 and anode portion 303 is integrated；2. by empty
Gas preheating unit, exhaust combustion unit and reformation heat exchange unit are integrated；3. the first turbine 306 and air compressor machine 305 is same
Axis is integrated；4. the second turbine 307 is coaxially integrated with generator 308.In addition, association circulating power generation system provided in this embodiment
The air compression system and vacuum tank for also eliminating the intermittent gas supply of traditional common are that pile main body is held by the first turbine 306
Continuous air supply system, is supplied according to the air demand of pile main body, can effectively avoid the problem that air excess；Furthermore pass through by
By air preheat unit, exhaust combustion unit and reform heat exchange unit integrated, fuel and preheating of air space and combustion
Burning room is public, had both reduced complicated system pipeline design, and had decreased the loss of many external coolings.
Further, by CH4The fuel for being directly used as SOFC generate electricity caused by bringing because of methane cracking carbon distribution
SOFC performance degradation problem, therefore, CH4The fuel of SOFC is re-used as after being reformed.Reformation needs deionized water and day
Right gas reacts at high temperature, and the flue gas backheat deionized water and natural gas that the present embodiment makes full use of the second turbine 307 to be discharged make
Reach best reforming temperature, and synthesis gas CO and H are reformatted into reformer 3092。
Preferably, exhaust combustion heater 302, anode portion 303, negative pole part 304, air compressor machine 305, the first turbine 306, again
Engagement positions 309 and external cooling unit 310 can be used as a heat integration system module, combined cycle hair provided in this embodiment
Electric system may include one, two, three even more heat integration system modules being arranged in parallel.Specifically, heat connection
The quantity for closing system module is decided by the electricity production of single heat integration system module and the total capacity of association circulating power generation system, often
The power of a heat integration system module depends on maintaining the fuel quantity of its efficiency power generation and maintains to stablize the fuel quantity of circulation；It is in parallel
Tail gas after the heat integration system module turbocharging of setting is passed through same second turbine 307.
Association circulating power generation system provided in this embodiment based on the cooling fuel cell of gas turbine, has following beneficial
Effect:
1. the fuel availability of the thermal efficiency of system, the conversion ratio of fuel and pile can be improved, and stable operation is kept,
CH4Average utilization reach 70% or more, when fuel availability is 72%, the DIE Temperature of pile main body maintains 850
~860 DEG C of stable electric generations；When gas turbine engine systems work together, the net generating efficiency of whole system is more than 80%；
2. after fuel cell system and gas turbine engine systems circulation are combined, due to the raising of system integration degree,
The space for reducing air compressor machine 305, reformer 309, exhaust combustion unit, air preheat unit, save equipment pipe and
Keeping warmth space, the relatively traditional individual pile electricity generation system of overall space reduce 30% or more.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (8)
1. a kind of association circulating power generation system based on the cooling fuel cell of gas turbine, which is characterized in that including fuel gas supply
Protection system (1), air supply system (2) and electricity production system (3), the electricity production system (3) include:
Premix evaporator (301), fuel gas supply protection system (1) be used for for the premix evaporator (301) offer methane,
Hydrogen, protection gas and deionized water；
Exhaust combustion heater (302), the exhaust combustion heater (302) include reforming heat exchange unit, exhaust combustion unit
With air preheat unit, the exhaust combustion unit is used to provide heat for the reformation heat exchange unit and air preheat unit；
The import for reforming heat exchange unit is connected to the gas outlet of premix evaporator (301)；
Pile main body, the pile main body include anode portion (303) and negative pole part (304), the import of the anode portion (303) with
The outlet for reforming heat exchange unit, the import of the exhaust combustion unit and the outlet of the anode portion (303)；
Turbo charging installation, the turbo charging installation include air compressor machine (305) and for driving the air compressor machine (305)
One turbine (306)；The import of the air compressor machine (305) is connected to the air supply system (2), the air compressor machine (305)
Outlet passes sequentially through the inlet communication of the air preheat unit and the negative pole part (304) and the exhaust combustion unit；Institute
State the import of the first turbine (306) and the outlet of the exhaust combustion unit；
Turbine generator, the turbine generator include the second turbine (307) and are driven by second turbine (307)
Generator (308), the outlet of the import of second turbine (307) and first turbine (306).
2. the association circulating power generation system according to claim 1 based on the cooling fuel cell of gas turbine, feature exist
In the electricity production system (3) further include:
The import of reformer (309), the anode portion (303) is single by the reformer (309) and reformation heat exchange
The outlet of member.
3. the association circulating power generation system according to claim 2 based on the cooling fuel cell of gas turbine, feature exist
In the electricity production system (3) further include:
The import of external cooling unit (310), the air compressor machine (305) passes through the external cooling unit (310) and the sky
The inlet communication of gas preheating unit.
4. the association circulating power generation system according to claim 1 based on the cooling fuel cell of gas turbine, feature exist
In, the negative pole part (304), anode portion (303), reformer (309) and external cooling unit (310) from top to bottom arrange with
Form monolithic construction.
5. the association circulating power generation system according to claim 1 based on the cooling fuel cell of gas turbine, feature exist
In the electricity production system (3) further include:
First inverter (311), first inverter (311) connect with the pile main body, for generating pile main body
Direct current be changed into alternating current.
6. the association circulating power generation system according to claim 1 based on the cooling fuel cell of gas turbine, feature exist
In the electricity production system (3) further include:
Second inverter (312), second inverter (312) connect with the generator (308), are used for the generator
(308) the alternating current frequency reducing output generated.
7. the association circulating power generation system according to claim 1 based on the cooling fuel cell of gas turbine, feature exist
In the outlet of second turbine (307) is connected to the exhaust gas inlet of premix evaporator (301).
8. the association circulating power generation system according to claim 7 based on the cooling fuel cell of gas turbine, feature exist
In, further includes:
It empties pipeline (313), emptying pipeline (313) is connected to the waste gas outlet of premix evaporator (301), described useless
Gas import is connected to the waste gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN112922686A (en) * | 2021-01-21 | 2021-06-08 | 青岛科技大学 | Gas-steam combined cycle composite power generation system integrating solar energy and MCFC |
| CN113948736A (en) * | 2021-08-26 | 2022-01-18 | 上海空间电源研究所 | Hybrid energy system of liquid fuel cell and internal combustion engine and working method |
| CN114024009A (en) * | 2021-10-13 | 2022-02-08 | 清华大学 | Fuel cell power generation system |
| CN114188563A (en) * | 2021-12-07 | 2022-03-15 | 吉林大学青岛汽车研究院 | System and method for rapidly starting solid fuel cell by utilizing fused salt heat storage |
| CN114243056A (en) * | 2021-12-16 | 2022-03-25 | 中车株洲电机有限公司 | Fuel cell system with energy recovery module |
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| CN112922686A (en) * | 2021-01-21 | 2021-06-08 | 青岛科技大学 | Gas-steam combined cycle composite power generation system integrating solar energy and MCFC |
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| CN114188563A (en) * | 2021-12-07 | 2022-03-15 | 吉林大学青岛汽车研究院 | System and method for rapidly starting solid fuel cell by utilizing fused salt heat storage |
| CN114188563B (en) * | 2021-12-07 | 2023-06-27 | 吉林大学青岛汽车研究院 | System and method for quickly starting solid fuel cell by using fused salt heat accumulation |
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