CN201171066Y - Air exhaust pipe apparatus for fuel cell - Google Patents
Air exhaust pipe apparatus for fuel cell Download PDFInfo
- Publication number
- CN201171066Y CN201171066Y CNU2007200759455U CN200720075945U CN201171066Y CN 201171066 Y CN201171066 Y CN 201171066Y CN U2007200759455 U CNU2007200759455 U CN U2007200759455U CN 200720075945 U CN200720075945 U CN 200720075945U CN 201171066 Y CN201171066 Y CN 201171066Y
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- CN
- China
- Prior art keywords
- fuel cell
- air
- pipeline
- pipe joints
- cell pack
- 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.)
- Expired - Fee Related
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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
Abstract
The utility model relates to an air exhaust pipe of a fuel cell, which comprises a fuel cell stack, an air conveyor, an air humidifier and an air-vapor separator; the air conveyor is connected with the fuel cell stack by the air humidifier; the air-vapor separator is connected with the air outlet of the fuel cell stack; the air exhaust pipe arranged between the air-vapor separator and the air outlet of the fuel cell stack is provided with a heat-radiation cooler. Compared with the prior art, the air exhaust pipe has the advantages of simple structure, capability of recovering the fuel cell and generating water, comprehensive resource utilization, etc.
Description
Technical field
The utility model relates to the servicing unit of fuel cell, relates in particular to a kind of emptying tracheae device of fuel cell.
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, leads the surface that the membrane electrode plate contacts with membrane electrode for every and mills quarter by die casting, punching press or machinery, and formation is the guiding gutter of one or more at least.These lead the pole plate that the membrane electrode plate can above metal material, also can be the pole plates of graphite material.These lead anode region and cathodic region that water conservancy diversion duct on the membrane electrode plate and guiding gutter import fuel and oxidant the 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 heat radiation cooling fluid (as water), the cooling fluid that will dispel the heat are evenly distributed in each battery pack in the heat radiation cooling duct, with the heat absorption of hydrogen, oxygen electrochemistry exothermic reaction generation in the fuel cell and take battery pack out of and dispel 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, heat radiation cooling fluid are all opened on the end plate of fuel battery or on two end plates.
Fig. 1 is at present typical fuel cell generation, and 1 is fuel cell pack in Fig. 1, and 2 are storage hydrogen bottle or other hydrogen-storing devices, 3 is pressure-reducing valve, and 4 are air filtration worry device, and 5 is the air compression feeding mechanism, 6 is the hydrogen Water-vapor seperator, 6 ' is the air Water-vapor seperator, and 7 is water tank, and 8 are heat radiation cooling fluid circulating pump, 9 is radiator, 10 is the hydrogen circulating pump, and 11 is the hydrogen humidifying device, and 12 is the air humidification device.
It all is to discharge by the cathode air side that fuel cell generates the water major part, middle low-pressure system, generating the most of gasification of water discharges with air for steam, even used steam trap, also be difficult to separate steam, a large amount of steam has caused the waste of resource along with air has been discharged system.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of fuel cell simple in structure, recyclable to generate the emptying tracheae device of the fuel cell of water, utilize resources synthetically for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions: a kind of emptying tracheae device of fuel cell, comprise fuel cell pack, air transport device, air humidifier, atmospheric vapour separator, described air transport device is connected on the fuel cell pack by air humidifier, described atmospheric vapour separator is connected to fuel cell pack air outlet slit place, it is characterized in that the emptying tracheae between the air outlet slit of described steam trap and fuel cell pack is provided with a heat radiation cooling device.
Described heat radiation cooling device is made up of with the several small pipelines that are connected two pipe joints two pipe joints, described two pipe joints simultaneously are provided with the aperture of several and small pipeline coupling, described small pipeline is arranged on the aperture of two pipe joints, two pipe joints are coupled together, and the another side of described two pipe joints connects the air outlet slit pipeline of fuel cell pack and the inlet pipeline of atmospheric vapour separator respectively.
Described small pipeline is provided with radiating fin.
Described small pipeline has 10～20.
Described heat radiation cooling device is made up of with the multilayer flat tube that is connected two pipe joints two pipe joints, described two pipe joints simultaneously are provided with the docking port with the flat tube coupling, and another side connects the air outlet slit pipeline of fuel cell pack and the inlet pipeline of atmospheric vapour separator respectively.
Described flat tube has 5～10 layers.
Described heat radiation cooling device is the pipeline lengthening that will connect between fuel cell pack air outlet slit and the atmospheric vapour separator.
Be set to S shape, W shape or dish snake shape behind the described pipeline lengthening.
Compared with prior art, the utility model is reequiped design with the air outlet slit of fuel cell pack to the blast pipe between the atmospheric vapour separator, with this blast pipe lengthening or will be wherein one section make many tubules into, or flat tube, increase the flow process that fuel cell generates steam, make the steam heat radiation be cooled to water, in the atmospheric vapour separator, separate and reclaim.This fuel cell pack is used for vehicle, helps heat radiation by free convection wind when vehicle ', the cooled fuel cell that can better dispel the heat generates steam, and reclaims.
Description of drawings
Fig. 1 is the structural representation of existing fuel cell system;
Fig. 2 is the structural representation of the utility model embodiment 1;
Fig. 3 is the structural representation of the utility model embodiment 2;
Fig. 4 is the structural representation of the utility model embodiment 3.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Embodiment 1
As shown in Figure 2, a kind of emptying tracheae device of 50kw fuel cell, comprise fuel cell pack 1, device 4 is considered in air filtration, air compression feeding mechanism 5, air Water-vapor seperator 6 ', air humidification device 12, air filtration is considered device 4 and is connected air compression feeding mechanism 5, be connected on the fuel cell pack 1 by air humidifier 12 again, described atmospheric vapour separator 6 ' is connected to fuel cell pack 1 air outlet slit place, pipeline 13 between the air outlet slit of steam trap 6 ' and fuel cell pack 1 is redesigned, the diameter of pipeline 13 is 40mm, with one section between the pipeline 13 two pipe joints 131 are set, 132, the small pipeline 14 that is 2mm with 10 diameters connects two pipe joints 131,132, two pipe joints 131,132 one sides respectively are provided with 10 apertures that mate with small pipeline 14, small pipeline is installed in two pipe joints 131, on 132 the aperture, with two pipe joints 131,132 couple together, small pipeline 14 is provided with radiating fin 15, air carries a large amount of fuel cell manufacture steam through piping 13 with after having the small pipeline 14 heat radiation coolings of radiating fin, enter atmospheric vapour separator 6 ', separate and reclaim.
The number of above-mentioned small pipeline 14 can be provided with 10～20 as required.
As shown in Figure 3, a kind of emptying tracheae device of 100kw fuel cell, comprise fuel cell pack 1, device 4 is considered in air filtration, air compression feeding mechanism 5, air Water-vapor seperator 6 ', air humidification device 12, air filtration is considered device 4 and is connected air compression feeding mechanism 5, be connected on the fuel cell pack 1 by air humidifier 12 again, described atmospheric vapour separator 6 ' is connected to fuel cell pack 1 air outlet slit place, pipeline 13 between the air outlet slit of steam trap 6 ' and fuel cell pack 1 is redesigned, the diameter of pipeline 13 is 50mm, with one section between the pipeline 13 two pipe joints 131 are set, 132, connect two pipe joints 131 with 5 flat tubes 14 ', 132, two pipe joints 131,132 one sides respectively are provided with 5 docking ports that mate with flat tube 14 ', flat tube 14 ' is installed in two pipe joints 131, on 132 the docking port, with two pipe joints 131,132 couple together, air carries a large amount of fuel cell manufacture steam after piping 12 and flat tube 14 ' heat radiation cooling, enter atmospheric vapour separator 6 ', separate and reclaim.
The number of above-mentioned flat tube 14 ' can be provided with 5～10 layers as required.
Embodiment 3
As shown in Figure 4, a kind of emptying tracheae device of 50kw fuel cell, comprise fuel cell pack 1, device 4 is considered in air filtration, air compression feeding mechanism 5, air Water-vapor seperator 6 ', air humidification device 12, air filtration is considered device 4 and is connected air compression feeding mechanism 5, be connected on the fuel cell pack 1 by air humidifier 12 again, described atmospheric vapour separator 6 ' is connected to fuel cell pack 1 air outlet slit place, pipeline 13 between the air outlet slit of steam trap 6 ' and fuel cell pack 1 is redesigned,, be set to coil snake shape 13 ' pipeline 13 lengthenings.
Above-mentioned pipeline can also be designed to other shapes, as W shape or S shape.
Claims (8)
1. the emptying tracheae device of a fuel cell, comprise fuel cell pack, air transport device, air humidifier, atmospheric vapour separator, described air transport device is connected on the fuel cell pack by air humidifier, described atmospheric vapour separator is connected to fuel cell pack air outlet slit place, it is characterized in that the emptying tracheae between the air outlet slit of described steam trap and fuel cell pack is provided with a heat radiation cooling device.
2. the emptying tracheae device of fuel cell according to claim 1, it is characterized in that, described heat radiation cooling device is made up of with the several small pipelines that are connected two pipe joints two pipe joints, described two pipe joints simultaneously are provided with the aperture of several and small pipeline coupling, described small pipeline is arranged on the aperture of two pipe joints, two pipe joints are coupled together, and the another side of described two pipe joints connects the air outlet slit pipeline of fuel cell pack and the inlet pipeline of atmospheric vapour separator respectively.
3. the emptying tracheae device of fuel cell according to claim 2 is characterized in that described small pipeline is provided with radiating fin.
4. the emptying tracheae device of fuel cell according to claim 2 is characterized in that, described small pipeline has 10～20.
5. the emptying tracheae device of fuel cell according to claim 1, it is characterized in that, described heat radiation cooling device is made up of with the multilayer flat tube that is connected two pipe joints two pipe joints, described two pipe joints simultaneously are provided with the docking port with the flat tube coupling, and another side connects the air outlet slit pipeline of fuel cell pack and the inlet pipeline of atmospheric vapour separator respectively.
6. the emptying tracheae device of fuel cell according to claim 5 is characterized in that, described flat tube has 5～10 layers.
7. the emptying tracheae device of fuel cell according to claim 1 is characterized in that, described heat radiation cooling device is the pipeline lengthening that will connect between fuel cell pack air outlet slit and the atmospheric vapour separator.
8. the emptying tracheae device of fuel cell according to claim 7 is characterized in that, is set to S shape, W shape or dish snake shape behind the described pipeline lengthening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200759455U CN201171066Y (en) | 2007-11-23 | 2007-11-23 | Air exhaust pipe apparatus for fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200759455U CN201171066Y (en) | 2007-11-23 | 2007-11-23 | Air exhaust pipe apparatus for fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201171066Y true CN201171066Y (en) | 2008-12-24 |
Family
ID=40210115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200759455U Expired - Fee Related CN201171066Y (en) | 2007-11-23 | 2007-11-23 | Air exhaust pipe apparatus for fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201171066Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112825361A (en) * | 2019-11-21 | 2021-05-21 | 上海德威明兴新能源科技有限公司 | Water/heat balance method for fuel cell |
-
2007
- 2007-11-23 CN CNU2007200759455U patent/CN201171066Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112825361A (en) * | 2019-11-21 | 2021-05-21 | 上海德威明兴新能源科技有限公司 | Water/heat balance method for fuel cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081224 Termination date: 20151123 |