CN100536209C - Design of inlet and outlet piping of integrated fuel cell stack with convenience to package - Google Patents
Design of inlet and outlet piping of integrated fuel cell stack with convenience to package Download PDFInfo
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- CN100536209C CN100536209C CNB2006100282111A CN200610028211A CN100536209C CN 100536209 C CN100536209 C CN 100536209C CN B2006100282111 A CNB2006100282111 A CN B2006100282111A CN 200610028211 A CN200610028211 A CN 200610028211A CN 100536209 C CN100536209 C CN 100536209C
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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 invention provides an integrated fuel battery stack entrance tube with easy package, comprising a hydrogen entrance tube, an air entrance tube, and a cooling fluid entrance tube to form a pipeline with three inlets and three outlets, wherein the air entrance tube is square which is leaded out from the front and back ends of electric stack from a middle collecting plate of fuel battery stack, to be leaded out at same or different directions, contacted with the fuel battery stack, to be butted with the square tube via round-square interfaces of round tubes to be connected with an air supply system, the hydrogen entrance tube and the cooling fluid entrance tube are round tubes which are leaded out from the front and back ends of electric stack from a middle collecting plate of fuel battery stack to be leaded out from a square tube of air or leaded from two sides of a square tube of air. Compared with prior art, the invention can save space, with easy package, waterproof and dustproof.
Description
Technical field
The present invention relates to fuel cell, relate in particular to a kind of design of the inlet and outlet piping of integrated fuel cell stack that is easy to encapsulate.
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.
Summary of the invention
Purpose of the present invention is exactly the design of the inlet and outlet piping of integrated fuel cell stack that is easy to encapsulate of a kind of conserve space of providing in order to address the above problem, waterproof and dustproof.
The object of the present invention is achieved like this: a kind of design of the inlet and outlet piping of integrated fuel cell stack that is easy to encapsulate, this design 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 air turnover pipeline is a rectangular tube, this rectangular tube is drawn the pile rear and front end from fuel cell pack intermediate collector plate, being close to the fuel cell pack edge draws, become square joint with round tube by circle again and dock, be connected to air supply system with this rectangular tube; Described hydrogen turnover pipeline, cooling fluid turnover pipeline are round tube, this round tube is drawn the pile rear and front end from fuel cell pack intermediate collector plate, pass the rectangular tube of turnover air, draw, or draw with the rectangular tube branch both sides of turnover air from air rectangular tube one or both ends.
Described three advance three parts that go out the close fuel cell pack of pipeline encapsulates with fuel cell pack, and its outlet is drawn from the package board face as required, and the rectangular tube that wherein passes in and out air 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.
Described hydrogen turnover pipeline, cooling fluid turnover pipeline are arranged in air rectangular tube inside, and cross-sectional area is littler than whole air rectangular tube area.
Described hydrogen turnover pipeline, cooling fluid turnover pipeline are arranged in air rectangular tube inside, and from air rectangular tube tube wall into and out of through welded seal.
Compared with prior art, the circuit design that the present invention will draw 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 fuel cell of the present invention advances three and goes out the pipeline schematic diagram.
Embodiment
Embodiment:
Three of present 60kw integrated fuel cell pile 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 present invention relates to a kind of design (as shown in Figure 2) of the inlet and outlet piping of integrated fuel cell stack that is easy to encapsulate, this design 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 air turnover pipeline is a rectangular tube, this rectangular tube is drawn the pile rear and front end from fuel cell pack intermediate collector plate, being close to the fuel cell pack edge draws, become square joint with round tube by circle again and dock, be connected to air supply system with this rectangular tube; Described hydrogen turnover pipeline, cooling fluid turnover pipeline are round tube, this round tube is drawn the pile rear and front end from fuel cell pack intermediate collector plate, pass the rectangular tube of turnover air, draw, or draw with the rectangular tube branch both sides of turnover air from air rectangular tube one or both ends.
Described three advance three parts that go out the close fuel cell pack of pipeline encapsulates with fuel cell pack, and its outlet is drawn from the package board face as required, and the rectangular tube that wherein passes in and out air 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 air rectangular tube is identical with corresponding butt joint round tube cross-sectional area, is 30cm
2Described fuel cell pack is that integrated form battery heap comprises the monocell heap.Described hydrogen passes in and out circular pipeline and is arranged in air rectangular tube inside, and cross-sectional area is 2cm
2, cooling fluid passes in and out circular pipeline and is arranged in air rectangular tube inside, cross-sectional area is 5cm
2Described hydrogen turnover pipeline, cooling fluid turnover pipeline are arranged in air rectangular tube inside, and from air rectangular tube tube wall into and out of through welded seal.
The circuit design that the present invention will draw from battery pile is a rectangular tube, encapsulates 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, and resistance is constant, and it is unimpeded to have guaranteed that fluid flows.
Claims (5)
1. inlet and outlet piping of integrated fuel cell stack that is easy to encapsulate, this design comprises that three of hydrogen turnover pipeline, air turnover pipeline and cooling fluid turnover pipeline advances three and go out pipeline, it is characterized in that, described air turnover pipeline is a rectangular tube, this rectangular tube is drawn the pile rear and front end from fuel cell pack intermediate collector plate, be close to the fuel cell pack edge and draw, become square joint with round tube by circle again and dock, be connected to air supply system with this rectangular tube; Described hydrogen turnover pipeline and cooling fluid turnover pipeline are round tube, this round tube is drawn the pile rear and front end from fuel cell pack intermediate collector plate, be arranged in the rectangular tube of turnover air, draw, or draw with the rectangular tube branch both sides of turnover air from air rectangular tube one or both ends.
2. a kind of inlet and outlet piping of integrated fuel cell stack that is easy to encapsulate according to claim 1, it is characterized in that, described three advance three parts that go out the close fuel cell pack of pipeline encapsulates with fuel cell pack, its outlet is drawn from the package board face as required, and the rectangular tube that wherein passes in and out air 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. a kind of inlet and outlet piping of integrated fuel cell stack that is easy to encapsulate according to claim 1 is characterized in that, described rectangular tube is identical with respective circular pipe cross-sectional area.
4. a kind of inlet and outlet piping of integrated fuel cell stack that is easy to encapsulate according to claim 1, it is characterized in that, described hydrogen turnover pipeline and cooling fluid turnover pipeline are arranged in air rectangular tube inside, and cross-sectional area is littler than whole air rectangular tube area.
5. a kind of inlet and outlet piping of integrated fuel cell stack that is easy to encapsulate according to claim 1, it is characterized in that, described hydrogen turnover pipeline and cooling fluid turnover pipeline are arranged in air rectangular tube inside, and from air rectangular tube tube wall into and out of through welded seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100282111A CN100536209C (en) | 2006-06-27 | 2006-06-27 | Design of inlet and outlet piping of integrated fuel cell stack with convenience to package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100282111A CN100536209C (en) | 2006-06-27 | 2006-06-27 | Design of inlet and outlet piping of integrated fuel cell stack with convenience to package |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101098017A CN101098017A (en) | 2008-01-02 |
| CN100536209C true CN100536209C (en) | 2009-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100282111A Active CN100536209C (en) | 2006-06-27 | 2006-06-27 | Design of inlet and outlet piping of integrated fuel cell stack with convenience to package |
Country Status (1)
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|---|---|
| CN (1) | CN100536209C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968210B (en) * | 2017-12-27 | 2023-11-28 | 新源动力股份有限公司 | Fuel cell cathode and anode plate with asymmetric structure and electric pile formed by same |
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- 2006-06-27 CN CNB2006100282111A patent/CN100536209C/en active Active
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| Publication number | Publication date |
|---|---|
| CN101098017A (en) | 2008-01-02 |
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Owner name: SHANGHAI SHEN-LI HIGH TECH CO., LTD. Effective date: 20131223 Owner name: STATE GRID SHANGHAI ELECTRIC POWER COMPANY Free format text: FORMER OWNER: SHANGHAI SHEN-LI HIGH TECH CO., LTD. Effective date: 20131223 |
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Effective date of registration: 20131223 Address after: 200002 Nanjing East Road, Shanghai, No. 181, No. Patentee after: State Grid Shanghai Municipal Electric Power Company Patentee after: Shanghai Shen-Li High Tech Co., Ltd. Address before: 201401, Fengxian Shanghai Industrial Development Zone, dragon Yang Industrial Park, an international 27 Patentee before: Shanghai Shen-Li High Tech Co., Ltd. |