CN101342856A - Method for preventing accumulation of hydrogen gas leakage of fuel cell vehicle - Google Patents
Method for preventing accumulation of hydrogen gas leakage of fuel cell vehicle Download PDFInfo
- Publication number
- CN101342856A CN101342856A CNA2007100438020A CN200710043802A CN101342856A CN 101342856 A CN101342856 A CN 101342856A CN A2007100438020 A CNA2007100438020 A CN A2007100438020A CN 200710043802 A CN200710043802 A CN 200710043802A CN 101342856 A CN101342856 A CN 101342856A
- Authority
- CN
- China
- Prior art keywords
- fuel
- cell vehicle
- machinery space
- induced duct
- hydrogen gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention relates to a method for preventing the hydrogen gas in a fuel cell vehicle from leaking and accumulating. An air pipe is arranged on a vehicle casing beside the engine compartment of a fuel cell vehicle, one end of the air pipe is communicated with the engine compartment, and the other end is communicated with atmosphere, the engine compartment is communicated with the atmosphere, shutters are arranged on the both sides and/or the rear end of the vehicle casing behind the engine compartment, the air pipe is directly led out from the top part of the vehicle casing and form an inverted U shape, and form an acute angle less than 90 degrees with the driving direction, and the opening of the air pipe is downward; when the fuel cell vehicle is driven in high speed, the lower part of the opening is in vacuum state, the air in the engine compartment is sucked out, and simultaneously the air gets into the engine compartment from the shutters on the both sides or the rear end of the vehicle casing behind the engine compartment, to form an air flow loop; a pipeline ventilating fan is arranged in the air pipe, and when the fuel cell vehicle is in low speed or idle speed condition, the ventilating fan exhausts the gas out of the engine compartment by perforce through the air pipe. Compared with the prior art, the method has the advantages of hydrogen gas leakage prevention and ventilation.
Description
Technical field
The present invention relates to fuel cell, relate in particular to a kind of anti-hydrogen gas leakage of fuel-cell vehicle and the method gathered.
Background technology
Electrochemical fuel cell is a kind of device that hydrogen and oxidizer can be changed into electric energy and resultant of reaction.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 PEM, two porous conductive materials of film two sides folder.The catalyst that contains the initiation electrochemical reaction of even tiny dispersion on two boundary surfaces 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 return.
At the anode tap of membrane electrode, fuel can pass porosity diffusion material (carbon paper) by infiltration, and electrochemical reaction takes place on catalyst surface, lose electronics, form positive ion, positive ion can pass PEM by migration, arrives the other end cathode terminal of membrane electrode.At the cathode terminal of membrane electrode, contain the gas of oxidizer (as oxygen), as air, pass porosity diffusion material (carbon paper), and the generation electrochemical reaction obtains electronics on catalyst surface, forms negative ion by infiltration.The positive ion of coming in the anion and the anode tap migration of cathode terminal formation reacts, and forms resultant of reaction.
Adopting hydrogen is fuel, and the air that contains oxygen is in the Proton Exchange Membrane Fuel Cells of oxidizer (or pure oxygen is an oxidizer), and fuel hydrogen has just produced hydrogen positive ion (or being proton) in the catalytic electrochemical reaction of positive column.PEM helps the hydrogen positive ion to move to cathode region from the positive column.In addition, PEM is separated the air-flow and the oxygen air-flow of hydrogen fuel, they can not mixed mutually and produces explosive type reaction.
At cathode region, oxygen obtains electronics on catalyst surface, forms negative ion, and moves the hydrogen positive ion reaction of coming, reaction of formation product water with the positive column.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 the representative type 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, forms the flame diversion trough of one or more at least.These guide plates can be the pole plates of metallic material, also can be the pole plates of graphite material.Fluid duct on these guide plates and flame diversion trough import fuel and oxidizer the positive column and the cathode 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 deflecting plate of anode fuel and the deflecting plate of cathode oxidant.These deflecting plates are both as current collector plate, and also as the mechanical support on membrane electrode both sides, the flame diversion trough on the deflecting plate acts as a fuel again and enters the passage of anode, cathode surface with oxidizer, and as the passage of taking away the water that generates in the fuel cell operation process.
In order to increase the gross horsepower 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 flame diversion trough 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, lower back panel 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 fuels, gasoline) and oxidizer (mainly being oxygen or air) in the flame diversion trough 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 exothermal 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, oxidizer, cooling fluid are all opened on the end plate of fuel cells or on two end plates.
At present, the machinery space of fuel-cell vehicle all is closed design, atmosphere draught-free in the cabin, in case fuel battery engines has hydrogen gas leakage, in the storehouse, assemble easily, thereby be easy to blast, adopt punching or common louvered design, out of reach ventilation waterproof effect.
Summary of the invention
Purpose of the present invention is exactly to provide the anti-hydrogen gas leakage of the fuel-cell vehicle that a kind of ventilation, anti-hydrogen gas leakage hoard in order to overcome the defective that above-mentioned prior art exists and the method gathered.
Purpose of the present invention can be achieved through the following technical solutions: a kind of anti-hydrogen gas leakage of fuel-cell vehicle and the method gathered, it is characterized in that, this method is on the other car shell of the machinery space of fuel-cell vehicle induced duct to be set, this induced duct one end feeds machinery space, the other end feeds atmosphere, machinery space is communicated with atmosphere, and car shell both sides and/or rear end behind machinery space are provided with blinds, inverted U-shaped shape is directly drawn and formed to described induced duct from car shell top, be less than 90 ° acute angle with direction of traffic formation, and the induced duct mouth of pipe down, when fuel-cell vehicle was run at high speed, mouth of pipe below presented vacuum, with the gas sucking-off in the machinery space, simultaneously atmosphere behind the machinery space car shell both sides or the blinds of rear end enter machinery space, form gas flow loop, can take the car cabin immediately out of, be provided with the tubes rows fan in the described induced duct if any hydrogen gas leakage, when fuel-cell vehicle was in low speed or idling mode, exhaust fan was forced the gas in the machinery space to discharge out of my cabin by induced duct.
Described induced duct can be provided with 1～5 as required.
Described induced duct is installed on the other car shell of fuel cell car engine, the one end is connected in the machinery space, the other end stretches out outside the car along the car shell and forms about 180 ° inverted U-shaped shape, its mouth of pipe down, direction and the acute angle of the opposite or identical formation of garage's direction less than 90 °.
Described blinds is installed in car shell both sides and/or the rear end behind the machinery space, and the blade of blinds is downward-sloping, reaches rainproof effect.
Compared with prior art, the present invention draws several induced ducts in machinery space, and it is super to the back lower place to draw the outer induced duct mouth of pipe direction of car, opposite with the garage direction, and on the car shell behind the driving engine the downward blinds of blading, when travelling according to overall height speed, the tailstock easily forms the principle of vacuum, when fuel-cell vehicle is run at high speed, the mouth of pipe below that induced duct feeds atmosphere one end presents vacuum, with the gas sucking-off in the machinery space, simultaneously atmosphere behind the machinery space car shell both sides or the blinds of rear end enter machinery space, form gas flow loop, if any hydrogen gas leakage, can be taken out of the car cabin by this gas flow loop immediately, can not produce hydrogen and build up phenomenon, avoid blasting, make the fuel-cell vehicle safety and reliability because of hydrogen gas leakage.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the structural representation of the embodiment of the invention 2.
The specific embodiment
The invention will be further described below in conjunction with drawings and the specific embodiments.
Embodiment 1
As shown in Figure 1, the anti-hydrogen gas leakage of 100 kilowatts of fuel-cell vehicles and the method gathered, this method is on the car shell on machinery space 1 side of fuel cell big bus car installation fuel cell pack 4 two induced ducts 2 to be set, these induced duct 2 one ends feed machinery space 1, the other end feeds atmosphere, machinery space 1 is communicated with atmosphere, and the car shell both sides behind machinery space 1 and rear end are provided with blinds 3, described induced duct 2 stretches out along the car shell and forms about 180 ° inverted U-shaped shape outside the car, its mouth of pipe down, the opposite acute angle that forms less than 90 ° of direction with the garage direction.When fuel-cell vehicle is run at high speed, the mouth of pipe below that described induced duct 2 feeds atmosphere one end presents vacuum, with the gas sucking-off in the machinery space 1, simultaneously atmosphere behind the machinery space 1 car shell both sides or the blinds of rear end enter machinery space, form gas flow loop, can take the car cabin immediately out of if any hydrogen gas leakage.Be provided with tubes rows fan 5 in the described induced duct 2, when fuel-cell vehicle was in low speed or idling mode, exhaust fan 5 was forced the gas in the machinery space to discharge out of my cabin by induced duct 1.
As shown in Figure 2, the anti-hydrogen gas leakage of 100 kilowatts of fuel-cell vehicles and the method gathered, this method is on the car shell on machinery space 1 side of fuel cell big bus car installation fuel cell pack 41 induced duct 2 to be set, these induced duct 2 one ends feed machinery space 1, the other end feeds atmosphere, machinery space 1 is communicated with atmosphere, and the car shell both sides behind machinery space 1 and rear end are provided with blinds 3, described induced duct 2 stretches out along the car shell and forms about 180 ° inverted U-shaped shape outside the car, its mouth of pipe down, direction and the acute angle of the identical formation of garage's direction less than 90 °.When fuel-cell vehicle is run at high speed, the mouth of pipe below that described induced duct 2 feeds atmosphere one end presents vacuum, with the gas sucking-off in the machinery space 1, simultaneously atmosphere behind the machinery space 1 car shell both sides or the blinds of rear end enter machinery space, form gas flow loop, can take the car cabin immediately out of if any hydrogen gas leakage.Be provided with tubes rows fan 5 in the described induced duct 2, when fuel-cell vehicle was in low speed or idling mode, exhaust fan 5 was forced the gas in the machinery space to discharge out of my cabin by induced duct 1.
The anti-hydrogen gas leakage of fuel-cell vehicle and the method gathered, be when travelling according to overall height speed, the tailstock easily forms the principle design of vacuum, described fuel-cell vehicle comprises the fuel cell big bus, car, fork truck etc., its anti-hydrogen gas leakage method is on the other car shell of fuel cell car engine 1～5 induced duct to be set as required, this induced duct one end is connected in the machinery space, the other end stretches out outside the car and is bent downwardly along the car shell and is hook-shaped, make opposite with the garage direction and downward-sloping and car shell both sides behind machinery space of its mouth of pipe direction and/or rear end that blinds is installed, and the blade of blinds is downward-sloping, reaches rainproof effect.When fuel-cell vehicle is run at high speed, the mouth of pipe below that induced duct feeds atmosphere one end presents vacuum, with the gas sucking-off in the machinery space, simultaneously atmosphere behind the machinery space car shell both sides or the blinds of rear end enter machinery space, form gas flow loop, if any hydrogen gas leakage, can be taken out of the car cabin by this gas flow loop immediately, can not produce hydrogen and build up phenomenon, avoid blasting, make the fuel-cell vehicle safety and reliability because of hydrogen gas leakage.
Claims (4)
1. the anti-hydrogen gas leakage of a fuel-cell vehicle and the method gathered, it is characterized in that, this method is on the other car shell of the machinery space of fuel-cell vehicle induced duct to be set, this induced duct one end feeds machinery space, the other end feeds atmosphere, machinery space is communicated with atmosphere, and car shell both sides and/or rear end behind machinery space are provided with blinds, inverted U-shaped shape is directly drawn and formed to described induced duct from car shell top, be less than 90 ° acute angle with direction of traffic formation, and the induced duct mouth of pipe down, when fuel-cell vehicle was run at high speed, mouth of pipe below presented vacuum, with the gas sucking-off in the machinery space, simultaneously atmosphere behind the machinery space car shell both sides or the blinds of rear end enter machinery space, form gas flow loop, can take the car cabin immediately out of, be provided with the tubes rows fan in the described induced duct if any hydrogen gas leakage, when fuel-cell vehicle was in low speed or idling mode, exhaust fan was forced the gas in the machinery space to discharge out of my cabin by induced duct.
2. the anti-hydrogen gas leakage of a kind of fuel-cell vehicle according to claim 1 and method gathered is characterized in that described induced duct can be provided with 1～5 as required.
3. the anti-hydrogen gas leakage of a kind of fuel-cell vehicle according to claim 1 and 2 and the method gathered, it is characterized in that, described induced duct is installed on the other car shell of fuel cell car engine, the one end is connected in the machinery space, the other end stretches out along the car shell and forms about 180 ° inverted U-shaped shape outside the car, its mouth of pipe down, direction and the acute angle of the opposite or identical formation of garage's direction less than 90 °.
4. the anti-hydrogen gas leakage of a kind of fuel-cell vehicle according to claim 1 and method gathered it is characterized in that described blinds is installed in car shell both sides and/or the rear end behind the machinery space, and the blade of blinds is downward-sloping reaches rainproof effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100438020A CN101342856A (en) | 2007-07-13 | 2007-07-13 | Method for preventing accumulation of hydrogen gas leakage of fuel cell vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100438020A CN101342856A (en) | 2007-07-13 | 2007-07-13 | Method for preventing accumulation of hydrogen gas leakage of fuel cell vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101342856A true CN101342856A (en) | 2009-01-14 |
Family
ID=40245023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100438020A Pending CN101342856A (en) | 2007-07-13 | 2007-07-13 | Method for preventing accumulation of hydrogen gas leakage of fuel cell vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101342856A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107004887A (en) * | 2014-12-09 | 2017-08-01 | 祖迪雅克航空技术公司 | Automated spacecraft fuel cell system |
| WO2018049795A1 (en) * | 2016-09-13 | 2018-03-22 | 北汽福田汽车股份有限公司 | Gas tank of fuel cell vehicle and fuel cell vehicle |
| CN108725184A (en) * | 2018-06-08 | 2018-11-02 | 中兴智能汽车有限公司 | A kind of fuel battery passenger car overhead hydrogen storage cabin |
| CN110843481A (en) * | 2019-10-23 | 2020-02-28 | 武汉格罗夫氢能汽车有限公司 | Hydrogen leakage processing method, processing device, hydrogen energy automobile and storage medium thereof |
| CN111322521A (en) * | 2020-02-17 | 2020-06-23 | 中国石油工程建设有限公司 | Hydrogen accumulation control-based hydrogen-containing natural gas pipeline safety guarantee system and method |
| CN115107504A (en) * | 2021-03-23 | 2022-09-27 | 本田技研工业株式会社 | Fuel cell vehicle |
-
2007
- 2007-07-13 CN CNA2007100438020A patent/CN101342856A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107004887A (en) * | 2014-12-09 | 2017-08-01 | 祖迪雅克航空技术公司 | Automated spacecraft fuel cell system |
| US10710739B2 (en) | 2014-12-09 | 2020-07-14 | Zodiac Aerotechnics | Autonomous aircraft fuel cell system |
| WO2018049795A1 (en) * | 2016-09-13 | 2018-03-22 | 北汽福田汽车股份有限公司 | Gas tank of fuel cell vehicle and fuel cell vehicle |
| CN108725184A (en) * | 2018-06-08 | 2018-11-02 | 中兴智能汽车有限公司 | A kind of fuel battery passenger car overhead hydrogen storage cabin |
| CN110843481A (en) * | 2019-10-23 | 2020-02-28 | 武汉格罗夫氢能汽车有限公司 | Hydrogen leakage processing method, processing device, hydrogen energy automobile and storage medium thereof |
| CN110843481B (en) * | 2019-10-23 | 2021-08-24 | 中极氢能汽车(长治)有限公司 | Hydrogen leakage processing method, processing device, hydrogen energy automobile and storage medium thereof |
| CN111322521A (en) * | 2020-02-17 | 2020-06-23 | 中国石油工程建设有限公司 | Hydrogen accumulation control-based hydrogen-containing natural gas pipeline safety guarantee system and method |
| CN115107504A (en) * | 2021-03-23 | 2022-09-27 | 本田技研工业株式会社 | Fuel cell vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1923560B (en) | Hybrid power system of fuel battery and energy-storage apparatus capable of quick changing and discharging | |
| CN101342856A (en) | Method for preventing accumulation of hydrogen gas leakage of fuel cell vehicle | |
| CN101764238A (en) | Method for safely and efficiently cycling fuel cell hydrogen or oxygen | |
| CN101425587B (en) | Integrated apparatus used for fuel cell humidifying | |
| CN2931186Y (en) | Structure for mounting fuel battery on top of city bus | |
| CN201070990Y (en) | Safe explosion-proof fuel cell vehicle | |
| CN100361334C (en) | Fuel battery generating system with hydrogen gas intermittence safety bleeder | |
| CN100536210C (en) | Design for collecting plate of integrated fuel cell | |
| CN2720652Y (en) | Fuel-cell generating system with hydrogen intermittent safety discharging device | |
| CN100562440C (en) | The installation and design at big bus top, overhead type fuel cell engine city | |
| CN100575143C (en) | Adopt the structure of the overhead type motor ventilating dustproof and rainproof of fuel cell big bus | |
| CN200964065Y (en) | Device for increasing fuel cell engine performance by automobile running | |
| CN101425588B (en) | Integrated fuel cell humidifying system | |
| CN100388543C (en) | Fuel cell with higher operation stability | |
| CN201364924Y (en) | Fuel cell charged with nitrogen or inert gases | |
| CN200950456Y (en) | Package structure of integrated fuel cell | |
| CN100517844C (en) | Normal pressure air suction type operation and cooling fuel cell | |
| CN100536208C (en) | Design of inlet and outlet piping of integrated fuel cell stack | |
| CN201048143Y (en) | Cooling fluid spraycup device | |
| CN100463268C (en) | Compact-structure fuel cell | |
| CN201185207Y (en) | Apparatus for simultaneously humidifying air and hydrogen | |
| CN101312246A (en) | Fuel cell high efficiency radiation method | |
| CN200948749Y (en) | Structure of fuel battery engine bus top case metal plate | |
| CN100414753C (en) | Fuel cell engine packaging device | |
| CN1986266A (en) | Installation process of bus engine with fuel cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090114 |