CN114876633B - Methanol fuel double-circuit power generation device and heat exchange system thereof - Google Patents
Methanol fuel double-circuit power generation device and heat exchange system thereof Download PDFInfo
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- CN114876633B CN114876633B CN202210470204.6A CN202210470204A CN114876633B CN 114876633 B CN114876633 B CN 114876633B CN 202210470204 A CN202210470204 A CN 202210470204A CN 114876633 B CN114876633 B CN 114876633B
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 441
- 239000000446 fuel Substances 0.000 title claims abstract description 91
- 238000010248 power generation Methods 0.000 title claims abstract description 50
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 119
- 239000001257 hydrogen Substances 0.000 claims abstract description 115
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 112
- 239000007789 gas Substances 0.000 claims abstract description 76
- 238000002485 combustion reaction Methods 0.000 claims abstract description 61
- 238000000746 purification Methods 0.000 claims abstract description 44
- 238000002407 reforming Methods 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 238000003860 storage Methods 0.000 claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000007787 solid Substances 0.000 claims description 25
- 238000007254 oxidation reaction Methods 0.000 claims description 17
- 230000003647 oxidation Effects 0.000 claims description 16
- 229910052760 oxygen Inorganic materials 0.000 claims description 16
- 239000001301 oxygen Substances 0.000 claims description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 14
- 238000012546 transfer Methods 0.000 claims description 12
- 239000003792 electrolyte Substances 0.000 claims description 8
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 239000003054 catalyst Substances 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000012528 membrane Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 238000006722 reduction reaction Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- GBMDVOWEEQVZKZ-UHFFFAOYSA-N methanol;hydrate Chemical compound O.OC GBMDVOWEEQVZKZ-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 229910000510 noble metal Inorganic materials 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- UQSQSQZYBQSBJZ-UHFFFAOYSA-N fluorosulfonic acid Chemical compound OS(F)(=O)=O UQSQSQZYBQSBJZ-UHFFFAOYSA-N 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006057 reforming reaction Methods 0.000 description 2
- 229910002076 stabilized zirconia Inorganic materials 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- OYCWBLFDGYRWSR-UHFFFAOYSA-N [Co][Fe][Sr][La] Chemical compound [Co][Fe][Sr][La] OYCWBLFDGYRWSR-UHFFFAOYSA-N 0.000 description 1
- GOKLZYVCZLGUGR-UHFFFAOYSA-N [O-2].[Y+3].[Ni+2] Chemical compound [O-2].[Y+3].[Ni+2] GOKLZYVCZLGUGR-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 150000003138 primary alcohols Chemical class 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B69/00—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types
- F02B69/02—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types for different fuel types, other than engines indifferent to fuel consumed, e.g. convertible from light to heavy fuel
- F02B69/04—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types for different fuel types, other than engines indifferent to fuel consumed, e.g. convertible from light to heavy fuel for gaseous and non-gaseous fuels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—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
- H01M8/06—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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a methanol fuel double-way power generation device and a heat exchange system thereof, and relates to the technical field of methanol power generation, wherein the methanol fuel double-way power generation device comprises an internal combustion engine power generation system, a methanol reforming fuel cell and a heat source, and the internal combustion engine power generation system comprises a methanol internal combustion engine and a power generator; the methanol reforming fuel cell comprises a reformer, a hydrogen purification device and a hydrogen fuel cell stack which are connected in sequence; the heat source is connected with the reformer through a heat transmission pipeline, and the methanol internal combustion engine is further connected with the reformer through the heat transmission pipeline to form a first heat exchange route; the hydrogen purification device and the gas outlet of the hydrogen fuel cell stack are connected to the gasifier through a heat transmission pipeline to form a second heat exchange route; the gas outlet of the methanol internal combustion engine is connected with a heat source through a heat transmission pipeline to form a third heat exchange route. The invention provides a methanol fuel double-way power generation device and a heat exchange system thereof, which realize the cyclic utilization of heat generated by an internal combustion engine power generation system and a methanol reforming fuel cell and reduce the consumption of energy.
Description
Technical Field
The invention relates to the technical field of methanol power generation devices, in particular to a methanol fuel double-way power generation device and a heat exchange system for recycling heat in the power generation device.
Background
Modern people cannot start electricity every day, and are limited by the limitation of power transmission layout of a power grid, and power cannot be supplied in some occasions needing electricity. The electric field which cannot be achieved in the power grid layout is generally supplied by purchasing a small-sized generator to generate electricity or adopting a storage device such as a storage battery. And both the small generator and the electricity storage device have their limitations in power supply. The price of the generator is high, the volume of the generator is large, the noise is large during use, and the generated waste gas is not environment-friendly. The storage battery has limited electricity storage capacity, ensures short power supply time, and is not suitable for long-time operation.
Taking an electric automobile as an example, there is a pure electric automobile taking a storage battery as a single power source, because the storage capacity of the storage battery is limited, the storage performance is reduced in a low-temperature environment, the charging time is long, the range of the automobile is low, the use range of the automobile is limited, in order to solve the problem of range, the range of the automobile is prolonged by combining a fuel generator and the storage battery, and the range of the automobile is prolonged by combining a fuel generator and the storage battery. On this basis, in recent years, methanol can be obtained by hydrogenating CO 2 to obtain "liquid sunlight" methanol. During the preparation of methanol, CO 2 is "sequestered" in methanol, and during the use of methanol, CO 2 is released, with zero CO 2 emissions throughout, similar to the capture and release of carbon by biomass over the life cycle. Methanol is a primary alcohol with high carbon-hydrogen ratio but no carbon-carbon bond, can be produced from renewable resources such as biomass and the like, is stable in liquid state at normal temperature and is easy to store.
In one scheme of producing hydrogen from methanol and using a fuel cell stack, methanol-water mixed solution is converted into hydrogen-rich reformed gas in a reformer, the hydrogen-rich gas is purified to 99.99% by a purification membrane, and the purified hydrogen enters the proton exchange membrane fuel cell stack to generate electricity through electrochemical reaction. The technical scheme has the defects of slow starting, low stability and long service life, is limited by the fact that the battery power cannot be applied to occasions with higher power, such as ship power and the like, and heat cannot be recycled.
Disclosure of Invention
The invention aims to provide a methanol fuel double-way power generation device and a heat exchange system thereof, which are used for solving the technical problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a methanol fuel double-circuit power generation facility, includes internal-combustion engine power generation system, methanol reforming fuel cell and heat source, wherein:
the internal combustion engine power generation system comprises a methanol internal combustion engine and a generator, wherein the methanol internal combustion engine is connected with a generator shaft, and the generator is electrically connected with a storage battery;
The methanol reforming fuel cell comprises a reformer, a hydrogen purification device and a hydrogen fuel cell stack, wherein a gas outlet of the reformer is divided into two paths, one path is connected to the hydrogen purification device through a pipeline, the other path is connected to a methanol internal combustion engine through a pipeline, the hydrogen purification device is used for oxidizing CO generated by reforming, and the hydrogen fuel cell stack is electrically connected with the storage battery;
The heat source is connected with the reformer through a heat transmission pipeline and is used for supplying heat to the reformer.
Preferably, the device further comprises a gasifier, a methanol storage tank and a water storage tank, wherein the outlet of the methanol storage tank is divided into three paths, the first path is connected with the methanol internal combustion engine, the second path is connected with the gasifier, the third path is connected with the heat source, the water storage tank is connected with the gasifier, and the gasifier is connected with the reformer.
Preferably, the system further comprises a controller, a methanol metering pump and a water metering pump, wherein the methanol metering pump is connected with the methanol storage tank, the water metering pump is connected with the water storage tank, and the methanol metering pump and the water metering pump are both in signal connection with the controller.
Preferably, the hydrogen purification device comprises a solid oxide electrolytic cell and a CO selective oxidation reactor, wherein the solid oxide electrolytic cell comprises a hydrogen electrode layer, an electrolyte layer and an oxygen electrode layer, and a certain voltage is applied to the outside of the solid oxide electrolytic cell so as to electrolyze H 2 O therein to generate H 2 and O 2.
Preferably, the gas outlet of the reformer is communicated with the gas inlet of the solid oxide electrolytic cell, the solid oxide electrolytic cell is provided with a hydrogen-rich reforming mixed gas outlet and an oxygen outlet, the reforming mixed gas outlet and the oxygen outlet are both communicated with the gas inlet of the CO selective oxidation reactor, and the gas outlet of the CO selective oxidation reactor is communicated with the gas inlet of the hydrogen fuel cell stack.
A heat exchange system comprising the methanol fuel two-way power generation device of any one of the above, and further comprising a first heat exchange route, a second heat exchange route and a third heat exchange route;
the heat source, the reformer and the methanol internal combustion engine are sequentially connected through a heat transmission pipeline to form the first heat exchange route;
the hydrogen purification device and the gas outlet of the hydrogen fuel cell stack are connected to the gasifier through a heat transmission pipeline to form the second heat exchange route;
The gas outlet of the methanol internal combustion engine is connected to the heat source through a heat transmission pipeline to form the third heat exchange route.
Preferably, a first heat exchanger is arranged between the reformer and the hydrogen purification device, a second heat exchanger is arranged between the hydrogen purification device and the hydrogen fuel cell stack, a third heat exchanger is arranged on one side, far away from the hydrogen purification device, of the hydrogen fuel cell stack, the first heat exchanger, the second heat exchanger and the third heat exchanger are internally provided with first heat exchange pipelines and second heat exchange pipelines which are arranged in a staggered mode, and a gas outlet of the reformer, the first heat exchange pipelines of the first heat exchanger, a gas outlet of the hydrogen purification device, the first heat exchange pipelines of the second heat exchanger, a gas outlet of the hydrogen fuel cell stack and the first heat exchange pipelines of the third heat exchanger are sequentially communicated through pipelines.
Preferably, the heat exchange system further comprises a fourth heat exchange route, the second heat exchange pipeline of the third heat exchanger, the second heat exchange pipeline of the second heat exchanger, the second heat exchange pipeline of the first heat exchanger and the feeding port of the heat source are sequentially communicated through pipelines to form the fourth heat exchange route, and methanol is input from the inlet of the second heat exchange pipeline of the third heat exchanger to serve as a heat exchange medium of the fourth heat exchange route.
Preferably, the gas outlet of the methanol internal combustion engine is divided into two paths, one path is connected to a pipeline between the second heat exchange pipeline of the first heat exchanger and the second heat exchange pipeline of the second heat exchanger through a heat transfer pipeline, and the other path is connected to the heat source through the heat transfer pipeline.
Compared with the related art, the methanol fuel two-way power generation device provided by the invention has the following beneficial effects:
1. According to the invention, methanol is used as fuel, two sets of power generation systems are adopted, the internal combustion engine power generation system and the methanol reforming fuel cell are cooperatively combined to generate power, one set of power generation system fails, the other set of continuous power supply is not influenced, sufficient power supply can be realized, power generation can be realized at any time according to the needs, the methanol is suitable for a plurality of application scenes of power utilization occasions which cannot be achieved in the power grid layout, and the methanol is clean and environment-friendly, low in price, long in power supply time and suitable for long-time power supply operation.
2. The invention provides a heat exchange system for realizing the cyclic utilization of heat generated by an internal combustion engine power generation system and a methanol reforming fuel cell, reduces the consumption of energy sources, transmits heat to the methanol internal combustion engine by a reformer, enables the methanol internal combustion engine to be started at a low temperature, avoids the problem that the methanol internal combustion engine is difficult to start when working at a low temperature, transmits high-grade heat generated after the methanol internal combustion engine works normally to a heat source by a heat transmission pipeline, and transmits the heat source to the reformer to support the reforming hydrogen production reaction of the reformer under the high temperature condition, so that the heat discharged by the methanol internal combustion engine is recycled, the waste heat utilization efficiency is improved, and the low-grade heat generated after the hydrogen purification device and the hydrogen fuel cell pile reaction is connected with a gasifier by the heat transmission pipeline to transmit the heat to the gasifier to support the gasification of methanol water in the gasifier, thereby further improving the waste heat utilization efficiency.
3. According to the invention, through scientifically arranging the heat exchange systems among the devices, the energy utilization rate is improved, the defect of using a single device is overcome, the power generation of the whole system is more optimized, the energy conservation and the emission reduction are realized, and the method has a good market prospect.
Drawings
FIG. 1 is a block diagram of a methanol fuel two-way power generation device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a hydrogen purification device according to a second embodiment of the present invention;
FIG. 3 is a schematic view showing the structure of a solid oxide electrolytic cell according to a second embodiment of the present invention;
FIG. 4 is a block diagram of a methanol fuel two-way power generation device and a heat exchange system according to a third embodiment of the invention;
FIG. 5 is a block diagram of a fourth heat exchange path of a heat exchange system according to a third embodiment of the present invention;
FIG. 6 is a block diagram of a methanol internal combustion engine and a fourth heat exchange route according to a third embodiment of the invention;
fig. 7 is a block diagram of a methanol fuel two-way power generation device for realizing direct current power supply according to the first embodiment of the invention;
Fig. 8 is a block diagram of a methanol fuel two-way power generation device for realizing ac power supply according to the first embodiment of the present invention.
Reference numerals: 1. a methanol internal combustion engine; 2. a generator; 3. a storage battery; 4.a reformer; 5. a hydrogen purification device; 51. a solid oxide electrolytic cell; 511. a hydrogen electrode layer; 512. an electrolyte layer; 513. an oxygen electrode layer; 52. a CO selective oxidation reactor; 6. a hydrogen fuel cell stack; 7. a heat source; 8. a gasifier; 9. a methanol storage tank; 10. a water storage tank; 11. a controller; 12. a methanol metering pump; 13. a water metering pump; 14. DC charging pile; 15. a device using direct current; 16. alternating current charging piles; 17. an apparatus using alternating current; 18. an inverter; 19. a first heat exchanger; 20. a second heat exchanger; 21. and a third heat exchanger.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one: referring to fig. 1, the methanol fuel double-circuit power generation device provided by the invention comprises an internal combustion engine power generation system, a methanol reforming fuel cell, a heat source 7 and a heat exchange system, takes methanol as fuel, has the advantage of the cooperative power generation of the methanol internal combustion engine 1 and the methanol reforming fuel cell, and enables the chemical energy of the methanol to be utilized more efficiently.
Further, the carrier of the methanol fuel double-way power generation device is an electric vehicle, the methanol fuel double-way power generation device is carried in a rear carriage of the electric vehicle and then is a mobile power generation vehicle, the mobile power generation vehicle can realize mobile power supply, and functions of the mobile power generation vehicle include, but are not limited to: off-grid power generation system, emergency power supply, mobile charging and carbon reduction power engineering can serve as an off-grid power generation system in communication base stations, islands and remote areas, can serve as an emergency power supply in emergency repair of a power grid and emergency power supply in communication industry, can serve as mobile charging in on-door charging and expressway holiday emergency charging, and can assist enterprises in realizing emission reduction as a carbon reduction power engineering so as to reduce the use of conventional energy.
The internal combustion engine power generation system comprises a methanol internal combustion engine 1 and a power generator 2, wherein the methanol internal combustion engine 1 is connected with the power generator 2 through a shaft, the methanol internal combustion engine 1 takes methanol as fuel, the methanol internal combustion engine 1 is driven by methanol combustion and drives the power generator 2 to generate power, the power generator 2 is connected with a storage battery 3 through a circuit, and electric energy can be stored in the storage battery 3.
The methanol reforming fuel cell comprises a reformer 4, a hydrogen purification device 5 and a hydrogen fuel cell stack 6, wherein a methanol reforming hydrogen production catalyst is filled in the reformer 4, the reformer 4 is used for reforming gasified methanol aqueous solution to generate hydrogen-rich reformed gas with H 2、CO2, CO and H 2 O, a gas outlet of the reformer 4 is divided into two paths, one path is connected to the hydrogen purification device 5 through a pipeline, the hydrogen-rich reformed gas generated by the reformer 4 is mainly transmitted to the hydrogen purification device 5, H 2 fuel is provided for the subsequent hydrogen fuel cell stack 6, the other path is connected to the methanol internal combustion engine 1 through a pipeline, and combustible gas such as H 2 and CO is provided for the methanol internal combustion engine 1, so that in-cylinder combustion conditions can be improved, emission of automobile pollutants can be reduced, fuel can be saved, and as is well known, the hydrogen-rich gas with pure H 2 or (75% H 2+25％CO2) or mixed gas mainly comprising H 2、CO2 prepared by methanol reforming is mixed and combusted, and the fuel consumption of the methanol internal combustion engine 1 and the control of pollutants in tail gas are active effects are achieved.
The hydrogen purification device 5 is used for reducing the concentration of CO in the reformed gas, oxidizing CO generated by reforming, then the hydrogen purification device 5 conveys the enriched H 2 into the hydrogen fuel cell stack 6, the H 2 performs oxidation reaction in the hydrogen fuel cell stack 6, chemical energy contained in the H 2 is converted into electric energy, the hydrogen fuel cell stack 6 is electrically connected with the storage battery 3, and the electric energy can be stored in the storage battery 3.
The methanol fuel double-way power generation device has two application scenes, one of which is as follows: as shown in fig. 7, the storage battery 3 may be electrically connected to the dc charging pile 14 and the device 15 using dc power, so as to supply power to the dc charging pile 14 and the device 15 using dc power; another application scenario is: as shown in fig. 8, the battery 3 is electrically connected to the ac charging pile 16 and the ac power using device 17 via the inverter 18, and supplies electric power to the ac charging pile 16 and the ac power using device 17; therefore, the methanol fuel double-circuit power generation device can output direct current and alternating current, has good power output stability, generates power at any time according to the needs, and meets the power supply requirement.
The heat source 7 is connected to the reformer 4 through a heat transfer pipe for supplying heat to the reformer 4.
In the present embodiment, the heat source 7 includes a furnace (not shown) and substances having a heat value such as methanol, H 2 and the like provided in the furnace and O 2 oxidizer in the air, and the methanol, H 2 and the oxidizer undergo oxidation-reduction reaction to generate heat to supply heat to the reformer 4.
Further, the methanol fuel double-way power generation device further comprises a gasifier 8, a methanol storage tank 9 and a water storage tank 10, wherein an outlet of the methanol storage tank 9 is divided into three ways, the first way is connected with the methanol internal combustion engine 1 and is used for conveying methanol fuel to the methanol internal combustion engine 1, the second way is connected with the gasifier 8, the third way is connected with a heat source 7, the water storage tank 10 is connected with the gasifier 8, the gasifier 8 is connected with the reformer 4, and the gasifier 8 is used for gasifying methanol and water and then conveying the gasified methanol and water into the reformer 4; the hydrogen purification device 5 and the hydrogen fuel cell stack 6 are connected to the gasifier 8 through a heat transmission pipeline for supplying heat to the gasifier 8.
Further optimizing the embodiment, the methanol fuel double-way power generation device further comprises a controller 11, a methanol metering pump 12 and a water metering pump 13, wherein the methanol metering pump 12 is connected with the methanol storage tank 9, the water metering pump 13 is connected with the water storage tank 10, the methanol metering pump 12 and the water metering pump 13 are both in signal connection with the controller 11, and the output quantity of methanol and water is controlled by the controller 11.
The reformer 4 at present mainly comprises a fixed bed reactor, a packed bed reactor, a membrane reactor and a micro-channel reactor, and the micro-channel reactor has the advantages of small volume, high safety, high heat and mass transfer efficiency, quick start, good vibration resistance and the like, and the reformer 4 adopts the micro-channel reactor to couple a reforming chamber and an oxidation chamber together, and two sides of a micro-channel are a reforming side and an oxidation side respectively. The existing catalyst for hydrogen production by reforming methanol mainly comprises a non-noble metal catalyst and a noble metal catalyst, and the catalyst for hydrogen production by reforming methanol coated on the surface of the reformer 4 is a noble metal catalyst Pt/In 2O3/Al2O3, and the optimal reforming temperature of the catalyst Pt/In 2O3/Al2O3 is 350 ℃, so that the gasifier 8 vaporizes original methanol water and heats the vaporized methanol water to the temperature required by the reforming reaction of the methanol because the pin catalyst has the advantages of good stability, difficult poisoning, high activity, good selectivity, less attenuation of long-term working performance and the like.
It should be noted that, the hydrogen fuel cell stack 6 is divided into a low-temperature stack and a high-temperature stack, the working temperature of the low-temperature stack is lower than 100 ℃, and a perfluorosulfonic acid membrane is typically used as a proton permeable membrane, and due to the special characteristics of the perfluorosulfonic acid membrane, a water thermal management system must be considered in the design process, so that the requirement on the purity of hydrogen is high, and the hydrogen fuel cell stack is very sensitive to CO. In contrast, the high Wen Diandui reaction temperature exceeds 100 ℃, has the advantages of high chemical reaction rate, high CO tolerance, simple water thermal management and the like, and is more suitable for being used as a power generation device to be coupled with a reformer, and the hydrogen fuel cell stack 6 can adopt the high Wen Diandui, the high Wen Diandui anode inlet is hydrogen-rich reformed gas, the anode outlet is low-hydrogen reformed gas, the cathode inlet is oxidizing gas and the cathode outlet is low-oxygen air.
Embodiment two:
As shown in fig. 2 and 3, the hydrogen purification device 5 includes a solid oxide electrolytic cell 51 and a CO selective oxidation reactor 52, the solid oxide electrolytic cell 51 includes a hydrogen electrode layer 511, an electrolyte layer 512, and an oxygen electrode layer 513, and a certain voltage is applied to the outside of the solid oxide electrolytic cell 51 to electrolyze H 2 O therein to generate H 2 and O 2.
The gas outlet of the reformer 4 is communicated with the gas inlet of the solid oxide electrolytic cell 51, the solid oxide electrolytic cell 51 is provided with a hydrogen-rich reforming mixed gas outlet and an oxygen outlet, the reforming mixed gas outlet and the oxygen outlet are both communicated with the gas inlet of the CO selective oxidation reactor 52, a CO selective oxidation catalyst is filled in the CO selective oxidation reactor 52, the gas outlet of the CO selective oxidation reactor 52 is communicated with the gas inlet of the hydrogen fuel cell stack 6, the CO selective oxidation catalyst is used for catalyzing the reaction of CO and O 2 so as to convert CO into CO 2, the concentration of CO in the hydrogen-rich gas is reduced, and the concentration of the CO is lower than 0.2ppm, so that the hydrogen-rich gas can enter the hydrogen fuel cell stack 6, and the performance of the hydrogen fuel cell stack 6 is not reduced.
The reformer 4 carries out reforming reaction and methanol cracking reaction on methanol and water under high pressure to generate reformed gas with H 2、CO2, CO and H 2 O, the H 2 O in the reformed gas is ionized by the solid oxide electrolytic cell 51 to generate H 2 and O 2, and the generated O 2 is used as oxidizing gas to react with CO, so that the content of CO is greatly reduced, the service life of the hydrogen fuel cell is prolonged, other redundant gas (such as N 2) is not introduced, H 2 is generated by electrolysis, the concentration of H 2 is increased, and more H 2 fuel is provided for the hydrogen fuel cell stack 6.
The solid oxide electrolytic cell 51 comprises a hydrogen electrode layer 511, an electrolyte layer 512 and an oxygen electrode layer 513, wherein the material of the hydrogen electrode layer 511 is nickel-yttrium oxide stabilized zirconia, the material of the oxygen electrode layer 513 is lanthanum strontium cobalt iron, the electrolyte layer 512 is yttrium oxide stabilized zirconia, and the hydrogen electrode layer 511 is of a porous ceramic structure which can conduct electrons to generate H 2; electrolyte layer 512 is a dense perovskite-type ceramic, which can be conducted with O 2-; the oxygen electrode layer 513 is a porous ceramic structure, and is capable of conducting O 2-, transporting air and generated O 2, when a voltage is applied to the solid oxide electrolytic cell 51, H 2 O at the hydrogen electrode layer 511 is decomposed into H 2 and O 2- under the action of an electromotive force under the catalysis of Ni, the reaction equation is H 2O+2e-→H2+O2-, and the generated O 2- passes through the electrolyte layer 512 to reach the oxygen electrode layer 513, and loses electrons under the action of a catalyst to generate O 2, and the reaction equation is 2O 2-→4e-+O2.
Embodiment III:
the embodiment provides a heat exchange system, referring to fig. 4, including the above-mentioned methanol fuel two-way power generation device, the heat exchange system further includes a first heat exchange route, a second heat exchange route, and a third heat exchange route.
The heat source 7, the reformer 4 and the methanol internal combustion engine 1 are sequentially connected through a heat transmission pipeline to form a first heat exchange route;
The hydrogen purification device 5 and the gas outlet of the hydrogen fuel cell stack 6 are connected to the gasifier 8 through a heat transmission pipeline to form a second heat exchange route;
the gas outlet of the methanol internal combustion engine 1 is connected to the heat source 7 through a heat transfer pipeline to form a third heat exchange route.
The heat exchange mode of the first heat exchange route is as follows: the heat source 7 generates heat higher than 300 ℃ through the combustion of the methanol, and is conveyed to the reformer 4 through the heat conveying pipeline for supporting the reaction of hydrogen production by reforming the methanol, the reformer 4 conveys the heat to the methanol internal combustion engine 1 through the heat conveying pipeline, and in addition, the reformer 4 also supplies one path of exhaust gas to the methanol internal combustion engine 1 for supporting the low-temperature starting of the methanol internal combustion engine 1.
The heat exchange mode of the second heat exchange route is as follows: the heat from the hydrogen purification device 5 and the hydrogen fuel cell stack 6 is low-grade heat below 100 ℃, and the low-grade heat is conveyed to the gasifier 8 through a heat conveying pipeline to provide heat for the gasification of methanol and water in the gasifier 8.
The heat exchange mode of the third heat exchange route is as follows: the tail gas of the methanol internal combustion engine 1 is high-grade heat with the temperature higher than 600 ℃, the high-grade heat is transmitted to a heat source 7 through a heat transmission pipeline, the heat is transmitted to the reformer 4 through the heat source 7, the energy support is provided for the hydrogen production process of the reformer 4, and the tail gas of the methanol internal combustion engine 1 can be combusted for a second time in the heat source 7 to generate heat.
Further, as shown in fig. 5, a first heat exchanger 19 is disposed between the reformer 4 and the hydrogen purification device 5, a second heat exchanger 20 is disposed between the hydrogen purification device 5 and the hydrogen fuel cell stack 6, a third heat exchanger 21 is disposed on a side of the hydrogen fuel cell stack 6 far away from the hydrogen purification device 5, the first heat exchanger 19, the second heat exchanger 20 and the third heat exchanger 21 each include a first heat exchange pipeline and a second heat exchange pipeline which are disposed in a staggered manner, and a gas outlet of the reformer 4, a first heat exchange pipeline of the first heat exchanger 19, a gas outlet of the hydrogen purification device 5, a first heat exchange pipeline of the second heat exchanger 20, a gas outlet of the hydrogen fuel cell stack 6 and a first heat exchange pipeline of the third heat exchanger 21 are sequentially communicated through pipelines.
The heat exchange system further comprises a fourth heat exchange route, wherein the second heat exchange pipeline of the third heat exchanger 21, the second heat exchange pipeline of the second heat exchanger 20, the second heat exchange pipeline of the first heat exchanger 19 and the feeding port of the heat source 7 are sequentially communicated through pipelines to form the fourth heat exchange route, and methanol is input from the inlet of the second heat exchange pipeline of the third heat exchanger 21 to serve as a heat exchange medium of the fourth heat exchange route.
The temperature of the gas outlet of the reformer 4 is about 300 ℃, the gas is cooled by the first heat exchange pipeline of the first heat exchanger 19 and then enters the hydrogen purification device 5, the gas temperature of the gas outlet of the hydrogen purification device 5 is higher than the temperature required by the hydrogen fuel cell stack 6, and therefore the gas from the hydrogen purification device 5 is required to be cooled to 70-100 ℃ by the first heat exchange pipeline of the second heat exchanger 20 and then is conveyed to the hydrogen fuel cell stack 6. Methanol solution is input into the second heat exchange pipelines of the first heat exchanger 19, the second heat exchanger 20 and the third heat exchanger 21 as a heat exchange medium, firstly, methanol passes through the third heat exchanger 21, the methanol solution is primarily gasified by the gas from the hydrogen fuel cell stack 6 at the position of the third heat exchanger 21, then the gasified methanol passes through the second heat exchanger 20, the gas from the hydrogen purification device 5 is input into the hydrogen fuel cell stack 6 in the second heat exchanger 20 for cooling, the methanol is completely gasified after secondary heat exchange, finally the methanol passes through the first heat exchanger 19, the gas from the reformer 4 is input into the hydrogen purification device 5 for cooling in the first heat exchanger 19, and the gasified methanol is finally input into the heat source 7, so that the fourth heat exchange route realizes gradual cooling of the gas among the reformer 4, the hydrogen purification device 5 and the hydrogen fuel cell stack 6.
Referring to fig. 6, when the hydrogen purification device 5 employs the solid oxide electrolytic cell 51 and the CO selective oxidation reactor 52, the gas outlet of the methanol internal combustion engine 1 is divided into two paths, one path being connected to a pipe between the second heat exchange pipe of the first heat exchanger 19 and the second heat exchange pipe of the second heat exchanger 20 through a heat transfer pipe, and the other path being connected to the heat source 7 through a heat transfer pipe.
The tail gas temperature of the methanol internal combustion engine 1 is 550-700 ℃, the temperature required by the reaction of the solid oxide electrolytic cell 51 is about 500 ℃, and the high-temperature environment of the solid oxide electrolytic cell 51 is supplied by external power, so that the power consumption is high, the gas outlet of the methanol internal combustion engine 1 is connected to a pipeline between the second heat exchange pipeline of the first heat exchanger 19 and the second heat exchange pipeline of the second heat exchanger 20, the tail gas with the temperature higher than 600 ℃ generated by the methanol internal combustion engine 1 passes through the first heat exchanger 19, the temperature output by the reformer 4 can be heated to 500 ℃ from 300 ℃ and then is conveyed into the solid oxide electrolytic cell 51, the tail gas heat of the methanol internal combustion engine 1 is efficiently utilized, and the heat is recycled, so that the purposes of energy conservation and emission reduction are achieved.
Note that, the dotted arrows in fig. 1 to 8 indicate heat transfer paths, and the solid arrows indicate gas or electric circuit transfer paths.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a methanol fuel double-circuit power generation facility, includes internal-combustion engine power generation system, methanol reforming fuel cell and heat source (7), its characterized in that:
The internal combustion engine power generation system comprises a methanol internal combustion engine (1) and a generator (2), wherein the methanol internal combustion engine (1) is connected with the generator (2) through a shaft, and the generator (2) is electrically connected with a storage battery (3);
The methanol reforming fuel cell comprises a reformer (4), a hydrogen purification device (5) and a hydrogen fuel cell stack (6), wherein a gas outlet of the reformer (4) is divided into two paths, one path is connected to the hydrogen purification device (5) through a pipeline, the other path is connected to the methanol internal combustion engine (1) through a pipeline, the hydrogen purification device (5) is used for oxidizing CO generated by reforming, and the hydrogen fuel cell stack (6) is electrically connected with the storage battery (3);
the heat source (7) is connected with the reformer (4) through a heat transmission pipeline and is used for supplying heat to the reformer (4);
The device comprises a methanol internal combustion engine (1), a heat source (7), a water storage tank (10), a gasifier (8), a methanol storage tank (9) and a water storage tank (10), wherein the outlet of the methanol storage tank (9) is divided into three paths, the first path is connected with the methanol internal combustion engine (1), the second path is connected with the gasifier (8), the third path is connected with the heat source (7), the water storage tank (10) is connected with the gasifier (8), and the gasifier (8) is connected with the reformer (4);
The system further comprises a controller (11), a methanol metering pump (12) and a water metering pump (13), wherein the methanol metering pump (12) is connected with the methanol storage tank (9), the water metering pump (13) is connected with the water storage tank (10), and the methanol metering pump (12) and the water metering pump (13) are both in communication connection with the controller (11);
The hydrogen purification device (5) comprises a solid oxide electrolytic cell (51) and a CO selective oxidation reactor (52), wherein the solid oxide electrolytic cell (51) comprises a hydrogen electrode layer (511), an electrolyte layer (512) and an oxygen electrode layer (513), and a certain voltage is applied to the outside of the solid oxide electrolytic cell (51) so as to electrolyze H 2 O therein to generate H 2 and O 2.
2. The methanol fuel two-way power generation device according to claim 1, wherein: the gas outlet of the reformer (4) is communicated with the gas inlet of the solid oxide electrolytic cell (51), the solid oxide electrolytic cell (51) is provided with a hydrogen-rich reforming mixed gas outlet and an oxygen outlet, the reforming mixed gas outlet and the oxygen outlet are both communicated with the gas inlet of the CO selective oxidation reactor (52), and the gas outlet of the CO selective oxidation reactor (52) is communicated with the gas inlet of the hydrogen fuel cell stack (6).
3. A heat exchange system, characterized by comprising the methanol fuel two-way power generation device of any one of claims 1 to 2, the heat exchange system further comprising a first heat exchange route, a second heat exchange route, and a third heat exchange route;
the heat source (7), the reformer (4) and the methanol internal combustion engine (1) are sequentially connected through a heat transmission pipeline to form the first heat exchange route;
The hydrogen purification device (5) and the gas outlet of the hydrogen fuel cell stack (6) are connected to the gasifier (8) through a heat transmission pipeline to form the second heat exchange route;
The gas outlet of the methanol internal combustion engine (1) is connected to the heat source (7) through a heat transfer pipeline to form the third heat exchange route.
4. A heat exchange system according to claim 3, wherein a first heat exchanger (19) is arranged between the reformer (4) and the hydrogen purification device (5), a second heat exchanger (20) is arranged between the hydrogen purification device (5) and the hydrogen fuel cell stack (6), a third heat exchanger (21) is arranged on one side, far away from the hydrogen purification device (5), of the hydrogen fuel cell stack (6), and the first heat exchanger (19), the second heat exchanger (20) and the third heat exchanger (21) comprise first heat exchange pipelines and second heat exchange pipelines which are arranged in a staggered manner, and an air outlet of the reformer (4), the first heat exchange pipelines of the first heat exchanger (19), an air outlet of the hydrogen purification device (5), the first heat exchange pipelines of the second heat exchanger (20), the air outlet of the hydrogen fuel cell stack (6) and the first heat exchange pipelines of the third heat exchanger (21) are sequentially communicated through pipelines.
5. The heat exchange system according to claim 4, further comprising a fourth heat exchange route, wherein the second heat exchange pipeline of the third heat exchanger (21), the second heat exchange pipeline of the second heat exchanger (20), the second heat exchange pipeline of the first heat exchanger (19) and the feed inlet of the heat source (7) are sequentially communicated through pipelines to form the fourth heat exchange route, and methanol is input from the inlet of the second heat exchange pipeline of the third heat exchanger (21) as a heat exchange medium of the fourth heat exchange route.
6. The heat exchange system according to claim 5, characterized in that the gas outlet of the methanol internal combustion engine (1) is divided into two paths, one path being connected to a pipe between the second heat exchange pipe of the first heat exchanger (19) and the second heat exchange pipe of the second heat exchanger (20) through a heat transfer pipe, and the other path being connected to the heat source (7) through a heat transfer pipe.
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| CN101982653A (en) * | 2010-10-22 | 2011-03-02 | 北京工业大学 | Preparation and storage device of reformed gas and control method thereof |
| KR20220004507A (en) * | 2020-07-03 | 2022-01-11 | 대우조선해양 주식회사 | Methanol fuel energy conversion system |
| CN217300714U (en) * | 2022-04-28 | 2022-08-26 | 上海威佳天意新能源科技有限公司 | Methanol fuel double-circuit power generation device and heat exchange system thereof |
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| CN104577168B (en) * | 2014-12-17 | 2017-02-01 | 广东合即得能源科技有限公司 | Methanol water hydrogen production power generation system and hydrogen production power generation method |
| CN112786934A (en) * | 2019-11-11 | 2021-05-11 | 钱志刚 | Phosphoric acid fuel cell power system taking methanol as raw material and power generation method thereof |
| CN111463460A (en) * | 2020-05-26 | 2020-07-28 | 上海博氢新能源科技有限公司 | Methanol reforming hydrogen production fuel cell system and heat control method thereof |
| CN213459815U (en) * | 2020-10-30 | 2021-06-15 | 摩氢科技有限公司 | Methanol reforming hydrogen production power generation system |
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| CN101982653A (en) * | 2010-10-22 | 2011-03-02 | 北京工业大学 | Preparation and storage device of reformed gas and control method thereof |
| KR20220004507A (en) * | 2020-07-03 | 2022-01-11 | 대우조선해양 주식회사 | Methanol fuel energy conversion system |
| CN217300714U (en) * | 2022-04-28 | 2022-08-26 | 上海威佳天意新能源科技有限公司 | Methanol fuel double-circuit power generation device and heat exchange system thereof |
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