CN200976376Y - Integrated apparatus for modularized fuel cell engine of urban bus - Google Patents
Integrated apparatus for modularized fuel cell engine of urban bus Download PDFInfo
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- CN200976376Y CN200976376Y CNU2005200433095U CN200520043309U CN200976376Y CN 200976376 Y CN200976376 Y CN 200976376Y CN U2005200433095 U CNU2005200433095 U CN U2005200433095U CN 200520043309 U CN200520043309 U CN 200520043309U CN 200976376 Y CN200976376 Y CN 200976376Y
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- engine
- fuel battery
- modular fuel
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- engines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model relates to an integrated device for city buses, which is designed into a modular fuel cell engine, wherein each of the cell engines is totally consistent in components, structures, designs, manufacture and assembly, with the output power at about 50 kw. The utility model is characterized in that the integrated device can be assembled in various combinations, meeting general demands for power performance of different buses.
Description
Technical field
The utility model relates to fuel cell, relates in particular to the integrating device of the modular fuel battery engine that is used for urban bus.
Background technology
Electrochemical fuel cell is a kind of device that hydrogen and oxidant can be changed into electric energy and product.The internal core parts of this device are membrane electrode (Membrane Electrode Assembly are called for short MEA), and membrane electrode (MEA) is made up of as carbon paper a proton exchange membrane, two porous conductive materials of film two sides folder.The catalyst that contains the initiation electrochemical reaction of even tiny dispersion on two boundary faces of film and carbon paper is as the metal platinum catalyst.The membrane electrode both sides can electrochemistry will take place with conductive body to be sent out and answers the electronics that generates in the process, draws by external circuit, constitutes current circuit.
At the anode tap of membrane electrode, fuel can pass porousness diffusion material (carbon paper) by infiltration, and electrochemical reaction takes place on catalyst surface, lose electronics, form cation, cation can pass proton exchange membrane by migration, arrives the other end cathode terminal of membrane electrode.At the cathode terminal of membrane electrode, contain the gas of oxidant (as oxygen), as air, pass porousness diffusion material (carbon paper), and the generation electrochemical reaction obtains electronics on catalyst surface, forms anion by infiltration.The cation of coming in the anion and the anode tap migration of cathode terminal formation reacts, and forms product.
Adopting hydrogen is fuel, and the air that contains oxygen is in the Proton Exchange Membrane Fuel Cells of oxidant (or pure oxygen is an oxidant), and fuel hydrogen has just produced hydrogen cation (or being proton) in the catalytic electrochemical reaction of anode region.Proton exchange membrane helps the hydrogen cation to move to the cathodic region from the anode region.In addition, proton exchange membrane is separated the air-flow and the oxygen containing air-flow of hydrogen fuel, they can not mixed mutually and produces explosion type reaction.
In the cathodic region, oxygen obtains electronics on catalyst surface, forms anion, and moves the hydrogen cation reaction of coming, reaction of formation product water with the anode region.In the Proton Exchange Membrane Fuel Cells that adopts hydrogen, air (oxygen), anode reaction and cathode reaction can be expressed in order to following equation:
Anode reaction: H
2→ 2H
++ 2e
Cathode reaction: 1/2O
2+ 2H
++ 2e → H
2O
In typical Proton Exchange Membrane Fuel Cells, membrane electrode (MEA) generally all is placed in the middle of the pole plate of two conductions, and quarter is milled by die casting, punching press or machinery in the surface that every guide plate contacts with membrane electrode, and formation is the guiding gutter of one or more at least.These guide plates can be the pole plates of metal material, also can be the pole plates of graphite material.Fluid duct on these guide plates and guiding gutter import fuel and oxidant the anode region and the cathodic region on membrane electrode both sides respectively.In the structure of a Proton Exchange Membrane Fuel Cells monocell, only there is a membrane electrode, the membrane electrode both sides are respectively the baffler of anode fuel and the baffler of cathode oxidant.These bafflers are both as current collector plate, and also as the mechanical support on membrane electrode both sides, the guiding gutter on the baffler acts as a fuel again and enters the passage of anode, cathode surface with oxidant, and as the passage of taking away the water that generates in the fuel cell operation process.
In order to increase the gross power of whole Proton Exchange Membrane Fuel Cells, two or more monocells can be connected into battery pack or be unified into battery pack by the mode that tiles usually by straight folded mode.In straight folded, in-line battery pack, can there be guiding gutter on the two sides of a pole plate, and wherein one side can be used as the anode guide face of a membrane electrode, and another side can be used as the cathode diversion face of another adjacent membranes electrode, and this pole plate is called bipolar plates.A series of monocell connects together by certain way and forms a battery pack.Battery pack tightens together by front end-plate, end plate and pull bar usually and becomes one.
A typical battery stack generally includes: the water conservancy diversion import and the flow-guiding channel of (1) fuel and oxidant gas are distributed to fuel (hydrogen-rich gas that obtains as hydrogen, methyl alcohol or methyl alcohol, natural gas, gasoline) and oxidant (mainly being oxygen or air) in the guiding gutter of each anode, cathode plane equably after reforming; (2) import and export and the flow-guiding channel of cooling fluid (as water) are evenly distributed to cooling fluid in each battery pack inner cooling channel, and the heat absorption that hydrogen in the fuel cell, the exothermic reaction of oxygen electrochemistry are generated is also taken battery pack out of and dispelled the heat; (3) outlet of fuel and oxidant gas and corresponding flow-guiding channel, fuel gas and oxidant gas are when discharging, and portability goes out the liquid that generates in the fuel cell, the water of steam state.Usually, the import and export of all fuel, oxidant, cooling fluid are all opened on the end plate of fuel battery or on two end plates.
Prediction of result according to expert's research, to the year two thousand twenty, Chinese automobile is possessed total amount will reach 100,000,000, and a year volume of production and marketing may be above 10,000,000, should automobile market be huge, also prove absolutely the critical role of auto industry in the middle of Chinese national economy.2003, the import of China's oil resource was increasing, and the external dependency degree of oil has surpassed 30%.Hand over foreign exchange increases by on a year-on-year basis above 50%, and China has become the second-biggest-in-the-world oil consumption country.In recent years, because a lot of outside, the problem of Middle East situation in addition, the energy security problem is very outstanding.The hydrogen fuel cell electric motor car is to utilize the vehicles of reproducible new forms of energy carrier-hydrogen for fuel.Hydrogen can be from various regenerative resources, as: water electrolysis hydrogen production is carried out in generatings such as solar energy, water, electricity, wind energy, geothermal energy; Also can pass through biological energy source hydrogen manufacturing; Can also pass through coal, gas renormalizing hydrogen manufacturing.Hydrogen is a kind of inexhaustible, nexhaustible renewable energy source carrier, greatly develops the hydrogen fuel cell electric motor car development China sustainable development auto industry is of great importance.
China's urban environment air quality monitoring shows that 70% urban environment air quality is not up to standard.Along with the rapid increase of urban automobile recoverable amount, the main source of a lot of urban air pollutions of automobile pollution discharging having become.
Along with the sustainable growth of vehicle guaranteeding organic quantity, China's automobile pollution total emission volumn also continues soaring.National motor vehicle hydrocarbon, carbon monoxide and nitrogen oxide emission reached 836.1 ten thousand tons, 3639.8 ten thousand tons and 549.2 ten thousand tons respectively in 2003, were respectively 2.51,2.05 and 3.01 times of nineteen ninety-five.
Predict according to relevant department, China's big city automotive emission contaminant capacity might reach about 75% of total air pollution amount in 2005, if ineffective Control of Automobile exhaust emission, air pollution type in big city will be converted into the vehicle exhaust type from coal smoke type.
The hydrogen fuel cell electric motor car is a kind of vehicles of real realization zero discharge, the unique discharging of hydrogen fuel cell electric motor car be pure water, and hydrogen fuel cell manufacture process and internal structure do not exist any to the virulent material of environment.But at present owing to reasons such as manufacturing technology and manufacturing costs, because the fuel battery engines of city big bus also fails to realize industrialized mass production.
The utility model content
The purpose of this utility model is exactly to provide a kind of integrating device that is used for the modular fuel battery engine of urban bus for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions: the integrating device that is used for the modular fuel battery engine of urban bus, it is characterized in that, this device adopts the design of modular fuel battery engine, the integrated assembling of a plurality of modular fuel battery engine composite types is arranged at city big bus internal combustion engine, the original installing space of Diesel engine; Two engines that modular fuel battery engine is complete independent operating wherein, each engine block comprises independently fuel battery stack module, air supply subsystem, hydrogen supply subsystem, boiler water circulation and heat dissipation subsystem, control and Monitor And Control Subsystem; Two independently the electricity output of modular fuel battery engine adopt and be connected in parallel, be added with diode and contactor separately.
Described engine adopts the engine of atmospheric air, low pressure hydrogen operation.
Described modular fuel battery engines adopts the fuel cell pack of high power density, atmospheric air operation.
Can take the combination of three or three above modular fuel battery engines integrated.
Described fuel battery engines is provided with CAN Communication Control bus.
Described fuel battery engines adopts the CAN Communication Control, guarantees safety, the protective value of fuel battery engines, comprises safety, moves control model automatically, safety monitoring, accident self diagnosis and strick precaution processing capacity.
Description of drawings
Fig. 1 is the structural representation of the utility model modular fuel battery engine;
Fig. 2 is fuel cell pack output power curve figure in the utility model modular fuel battery engine;
Fig. 3 is the net power output performance curve of the utility model modular fuel battery engine;
Fig. 4 is that two modular fuel battery engines of the utility model merge the output performance curve chart;
Fig. 5 is the integrated figure of combination of three modular fuel battery engines of the utility model;
Fig. 6 is parallel connection, the merging output performance curve of three modular fuel battery engines of the utility model.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Embodiment 1
According to different cities big bus car, mainly be that public transport in the city, intercity carrying, passenger personnel, demand power etc. require difference, to the characteristic of fuel battery engines, for example: power output, permission size, weight, continual mileage require to be very different.
In principle, be feasible according to the dissimilar fuel battery engines of different kinds of cities big bus car design.But each design will bring the variation of a large amount of parts, structure assembling, manufacturing process, increase the difficulty of manufacturing cost, consistency of product and quality control greatly.
In order to address the above problem, we have adopted the design of modular fuel battery engine innovatively, and each modular fuel battery engine is in full accord at aspects such as parts, structure, manufacturing, design, assemblings, and power output is greatly about about 50 kilowatts.But can carry out the integrated assembling of composite type of a plurality of modular fuel battery engines according to the concrete condition of different cities big bus, reach power and add up and satisfy different cities big bus integral power performance demands fully.
The performance of modular fuel battery engine.Through optimal design, modular fuel battery engine as shown in Figure 1, this engine has improved fail safe, reliability greatly because the mode that has adopted atmospheric air, low pressure hydrogen to move has significantly reduced because of the operation of fuel cell pack high pressure hydrogen causes battery pile and leaked the danger that brings.
This engine is reaching the commercialization performance requirement comprehensively, for example: stable, reliability etc.Table 1 is the specific performance index of this engine.
Table 1: the main performance index of modular fuel battery engine
| Project | Performance index |
| Engine weight (kg) | 300 |
| Size of engine (the high mm of the wide * of long *) | 920mm*650mm*720mm |
| Engine is by 863 normative testing net power outputs (KW) | 45 |
| Hydrogen fuel efficient (%) during test rated |
50 |
| Gravimetric specific power | ≥0.16KW/Kg |
| Volumetric specific power | ≥0.075KW/L |
The fuel cell pack that modular fuel battery engines has adopted high power density, normal pressure to move.Output performance is seen Fig. 2.
When fuel cell piles up different capacity output, the auxiliary power consumption difference of supporting operation of engine, the net power output performance curve of engine is seen Fig. 3.
Require the combination of a plurality of modular fuel battery engines integrated according to the different cities big bus, reach the requirement of city big bus engine integration.To the city bus big bus, can utilize internal combustion engine, the original installing space of Diesel engine, the combination of carrying out two modular fuel battery engines is integrated.Two complete independent operatings of modular fuel battery engine wherein, each engine block comprises independently fuel battery stack module, air supply subsystem, hydrogen supply subsystem, boiler water circulation and heat dissipation subsystem, control and Monitor And Control Subsystem.Two independently the electricity output of modular fuel battery engine adopt and be connected in parallel, be added with diode and contactor separately.During the outside output current of two simultaneous firings, its output voltage is identical, but operating current can be different.One of them modular fuel battery engines breaks down, and can carry out isolated shutdown at any time, does not influence the operation of another modular engine, and assurance can allow car load open.
So the dismounting separately of modular fuel battery engines, maintenance have increased the convenience of overhauling greatly.Fig. 4 is that two modular fuel battery engines are to be connected in parallel, to merge the output performance curve chart.
Embodiment 2
To the powerful intercity public transport big bus of some demand, can take the combination of three modular fuel battery engines integrated, as Fig. 5.Through integrated overall fuel battery engines output performance such as Fig. 6, maximum gross output can reach 160 kilowatts.Three modular fuel battery engines adopt output in parallel to connect, and each fuel battery engines output voltage is identical, and total current is adding up of three modular fuel battery engines output currents.
Claims (5)
1. the integrating device that is used for the modular fuel battery engine of urban bus, it is characterized in that, this device adopts the design of modular fuel battery engine, the integrated assembling of a plurality of modular fuel battery engine composite types is arranged at city big bus internal combustion engine, the original installing space of Diesel engine; Two engines that modular fuel battery engine is complete independent operating wherein, each engine block comprises independently fuel battery stack module, air supply subsystem, hydrogen supply subsystem, boiler water circulation and heat dissipation subsystem, control and Monitor And Control Subsystem; Two independently the electricity output of modular fuel battery engine adopt and be connected in parallel, be added with diode and contactor separately.
2. the integrating device that is used for the modular fuel battery engine of urban bus according to claim 1 is characterized in that, described engine adopts the engine of atmospheric air, low pressure hydrogen operation.
3. the integrating device that is used for the modular fuel battery engine of urban bus according to claim 1 is characterized in that, described modular fuel battery engines adopts the fuel cell pack of high power density, atmospheric air operation.
4. the integrating device that is used for the modular fuel battery engine of urban bus according to claim 1 is characterized in that, can take the combination of three or three above modular fuel battery engines integrated.
5. the integrating device that is used for the modular fuel battery engine of urban bus according to claim 1 is characterized in that, described fuel battery engines is provided with CAN Communication Control bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200433095U CN200976376Y (en) | 2005-07-11 | 2005-07-11 | Integrated apparatus for modularized fuel cell engine of urban bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200433095U CN200976376Y (en) | 2005-07-11 | 2005-07-11 | Integrated apparatus for modularized fuel cell engine of urban bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200976376Y true CN200976376Y (en) | 2007-11-14 |
Family
ID=38902657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200433095U Expired - Lifetime CN200976376Y (en) | 2005-07-11 | 2005-07-11 | Integrated apparatus for modularized fuel cell engine of urban bus |
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| Country | Link |
|---|---|
| CN (1) | CN200976376Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085896A (en) * | 2019-05-21 | 2019-08-02 | 武汉雄韬氢雄燃料电池科技有限公司 | A kind of highly integrated property fuel battery engine system |
-
2005
- 2005-07-11 CN CNU2005200433095U patent/CN200976376Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085896A (en) * | 2019-05-21 | 2019-08-02 | 武汉雄韬氢雄燃料电池科技有限公司 | A kind of highly integrated property fuel battery engine system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150711 Granted publication date: 20071114 |
|
| EXPY | Termination of patent right or utility model |