CN2932639Y - An inlet/outlet pipe structure of integrated fuel battery pack - Google Patents
An inlet/outlet pipe structure of integrated fuel battery pack Download PDFInfo
- Publication number
- CN2932639Y CN2932639Y CNU2006200432773U CN200620043277U CN2932639Y CN 2932639 Y CN2932639 Y CN 2932639Y CN U2006200432773 U CNU2006200432773 U CN U2006200432773U CN 200620043277 U CN200620043277 U CN 200620043277U CN 2932639 Y CN2932639 Y CN 2932639Y
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- Prior art keywords
- fuel cell
- pipeline
- inlet
- rectangular tube
- integrated
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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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Abstract
The utility model relates to an in-out conduit structure of an integrated fuel battery stack, comprising three in-out pipelines of a hydrogen gas in-out pipeline, an air in-out pipeline and a cooling fluid in-out pipeline, wherein the three in-out pipelines are square pipes. The square pipes lead out the front and the back ends of the electric stack from a flow collection board on the center of the fuel battery stack, cling the fuel battery stack leading out along the different or the same direction, then circular pipes are used to butt joint with the square pipes through a circle-to-square interface, and finally the square pipes are separately connected to the hydrogen gas supplying system, the air supplying system connection and the cooling fluid supplying system. Compared with the prior art, the utility model has the characteristics of saving space, packing conveniently, proofing water and dust, and the like.
Description
Technical field
The utility model relates to fuel cell, relates in particular to a kind of inlet and outlet piping structure of integrated fuel cell pile.
Background technology
Electrochemical fuel cell is a kind of device that hydrogen fuel 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 electronics that the membrane electrode both sides can will take place to generate in the electrochemical reaction process with conductive body is drawn 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 block of flow guiding electrode plate contacts with membrane electrode, and formation is the guiding gutter of one or more at least.These flow guiding electrode plates can be the pole plates of metal material, also can be the pole plates of graphite material.Water conservancy diversion duct on these flow guiding electrode 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 guide plate of anode fuel and the guide plate of cathode oxidant.These guide plates are both as the current collector motherboard, also as the mechanical support on membrane electrode both sides, guiding gutter on the guide plate 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 (as hydrogen, methyl alcohol or the hydrogen-rich gas that obtained by 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, the heat absorption that hydrogen in the fuel cell, the exothermic reaction of oxygen electrochemistry are generated and take battery pack out of after 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, cooling fluid are all opened on the end plate of fuel battery or on two end plates.
Proton Exchange Membrane Fuel Cells can be used as the dynamical system of delivery vehicles such as all cars, ship, can make portable, portable, fixed Blast Furnace Top Gas Recovery Turbine Unit (TRT) again.The Proton Exchange Membrane Fuel Cells electricity generation system must comprise fuel cell pack, fuel hydrogen supply, air supply, cooling heat dissipation, various piece such as control and electric energy output automatically.Stable and the reliability of Proton Exchange Membrane Fuel Cells operation is very important to the application as car, ship power system or movable Blast Furnace Top Gas Recovery Turbine Unit (TRT).Stable and the reliability that wherein improves fuel cell pack is crucial.
At present, hydrogen supply, air supply, cooling heat dissipation various piece pipeline all are three to advance the three circular pipelines that go out in the Proton Exchange Membrane Fuel Cells electricity generation system, occupy very large space, when these pipelines particularly carry out the waterproof and dustproof encapsulation with fuel cell pack, because battery pile is square, the space that must have does not fully utilize, and causes waste, and encapsulation difficulty is bigger.
Three of Shenli Science and Technology Co Ltd, Shanghai's patent (patent of invention number: 200410015888.2, utility model numbers 200420019588.7) " a kind of encapsulation of integrated fuel cell pile " or other integrated fuel cell stacks advance three and go out pipeline (as shown in Figure 1) and occupy too much space.
Summary of the invention
The structure of the inlet and outlet piping of integrated fuel cell stack that the purpose of this utility model is exactly a kind of conserve space of providing in order to address the above problem, help encapsulating.
The purpose of this utility model is achieved in that a kind of inlet and outlet piping structure of integrated fuel cell pile, this structure comprises hydrogen turnover pipeline, air turnover pipeline, three of cooling fluid turnover pipeline advances three and goes out pipeline, it is characterized in that, described three advance three, and to go out pipeline be rectangular tube, this rectangular tube is drawn the pile rear and front end from fuel cell pack intermediate collector plate, being close to fuel cell pack draws along similar and different direction, dock with this rectangular tube by circle change side interface with round tube again, be connected respectively to the hydrogen supply system again, air supply system connects, the cooling fluid supply system.
Described rectangular tube height is suitable with the fuel cell stack height, and encapsulates with fuel cell pack, and this encapsulation is drawn in its outlet as required, and adopts the deformable joints of hemispherical dome or old name for the Arabian countries in the Middle East's ground circle to be connected with round tube.
Described rectangular tube is identical with respective circular pipe cross-sectional area.
Described fuel cell pack is that integrated form battery heap comprises the monocell heap.
Compared with prior art, the pipeline structure that the utility model will be drawn from battery pile is a rectangular tube, encapsulates with battery pile, save the space, helped carrying out the water proof and dust proof encapsulation, and rectangular tube is identical with corresponding round tube cross-sectional area, and resistance is constant, and it is unimpeded to have guaranteed that fluid flows.
Description of drawings
Fig. 1 is that three of prior art fuel cell advances three and goes out the pipeline schematic diagram;
Fig. 2 is that three of the utility model fuel cell advances three and goes out the pipeline schematic diagram.
Embodiment
Embodiment:
Three of present 60kw integral type fuel battery advances three and goes out pipeline (as shown in Figure 1), hydrogen turnover pipeline 3, air turnover pipeline 2, cooling fluid turnover pipeline 4 is drawn the pile rear and front end from fuel cell pack 1 intermediate collector plate, the utility model relates to a kind of structure (as shown in Figure 2) of 60kw inlet and outlet piping of integrated fuel cell stack, this structure comprises hydrogen turnover pipeline 3, air turnover pipeline 2, cooling fluid turnover pipeline 4 grades three are advanced three and are gone out pipeline, it is characterized in that, described three advance three, and to go out pipeline be rectangular tube, this rectangular tube is drawn the pile rear and front end from fuel cell pack intermediate collector plate, be close to fuel cell pack 1 and draw along different directions, again with round tube with this rectangular tube respectively with the hydrogen supply system, air supply system connects, the cooling fluid supply system connects.
Described rectangular tube encapsulates with fuel cell pack, and this encapsulation is drawn in its outlet as required, and adopts the deformable joints 5 of hemispherical dome or old name for the Arabian countries in the Middle East's ground circle to be connected with round tube.
Described air turnover rectangular tube is identical with corresponding butt joint round tube cross-sectional area, is approximately 30cm
2
Described fuel cell pack is that integrated form battery heap comprises the monocell heap.
The pipeline structure that the utility model will be drawn from battery pile is a rectangular tube, encapsulate with battery pile, saved the space, helped carrying out the water proof and dust proof encapsulation, and rectangular tube is identical with corresponding round tube cross-sectional area, resistance is constant, and it is unimpeded to have guaranteed that fluid flows.
Claims (4)
1. the inlet and outlet piping structure of an integrated fuel cell pile, this structure comprises that three of hydrogen turnover pipeline, air turnover pipeline, cooling fluid turnover pipeline advances three and go out pipeline, it is characterized in that, described three advance three, and to go out pipeline be rectangular tube, this rectangular tube is drawn the pile rear and front end from fuel cell pack intermediate collector plate, being close to fuel cell pack draws along similar and different direction, dock with this rectangular tube by circle change side interface with round tube again, be connected respectively to hydrogen supply system, air supply system connection, cooling fluid supply system again.
2. the structure of a kind of integrated form inlet and outlet piping of integrated fuel cell stack according to claim 1, it is characterized in that, described rectangular tube height is suitable with the fuel cell stack height, and encapsulate with fuel cell pack, this encapsulation is drawn in its outlet as required, and adopts the deformable joints of hemispherical dome or old name for the Arabian countries in the Middle East's ground circle to be connected with round tube.
3. the inlet and outlet piping structure of a kind of integrated fuel cell pile according to claim 1 is characterized in that, described rectangular tube is identical with respective circular pipe cross-sectional area.
4. the inlet and outlet piping structure of a kind of integrated fuel cell pile according to claim 1 is characterized in that, described fuel cell pack is that integrated form battery heap comprises the monocell heap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200432773U CN2932639Y (en) | 2006-06-27 | 2006-06-27 | An inlet/outlet pipe structure of integrated fuel battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200432773U CN2932639Y (en) | 2006-06-27 | 2006-06-27 | An inlet/outlet pipe structure of integrated fuel battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2932639Y true CN2932639Y (en) | 2007-08-08 |
Family
ID=38349132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200432773U Expired - Lifetime CN2932639Y (en) | 2006-06-27 | 2006-06-27 | An inlet/outlet pipe structure of integrated fuel battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2932639Y (en) |
-
2006
- 2006-06-27 CN CNU2006200432773U patent/CN2932639Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |