CN102024970A - Method and device for increasing resistance consistency of fuel cell stack - Google Patents
Method and device for increasing resistance consistency of fuel cell stack Download PDFInfo
- Publication number
- CN102024970A CN102024970A CN2010105641297A CN201010564129A CN102024970A CN 102024970 A CN102024970 A CN 102024970A CN 2010105641297 A CN2010105641297 A CN 2010105641297A CN 201010564129 A CN201010564129 A CN 201010564129A CN 102024970 A CN102024970 A CN 102024970A
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- air inlet
- sectional area
- reaction gas
- regulating plate
- orifice regulating
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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 invention discloses a method and device for increasing the resistance consistency of a fuel cell stack. The method for increasing the reaction gas resistance consistency of the fuel cell stack is characterized by comprising the following steps: adjusting the sectional area of the reaction gas inlet of an end plate of the fuel cell stack, namely using the sectional area of the reaction gas inlet of the end plate as the starting point to turn down the sectional area gradually and ensure that the resistance of the reaction gas reaches a required value. The reaction gas inlet comprises an air inlet and a hydrogen inlet. The method in the invention has the following beneficial effects: the resistance consistency of the fuel cell stack can be increased effectively; the resistance of the fuel cell stack can be increased by one order of magnitude in real time; and the invention is easy to realize and has the advantages of low cost and simple system structure.
Description
Technical field:
The present invention relates to the fuel cell technology field, particularly pem fuel cell stack reaction gas resistance Adjusting Technology.
Background technology:
Fuel cell piles up in the actual production process, because series connection joint number many (surpassing 100 joints usually), after the pile assembling, the resistance difference of its air side and hydrogen is bigger, usually under the nominal operation state, resistance difference can reach more than the 1kpa, and this will influence fuel cell pack gas distribution in actual use, and then influences the consistency of fuel cell module output.Prior art is to regulate with the method for the resistance of control single battery, and its deficiency is the unanimity that is difficult to make the resistance adjusting.
Summary of the invention
The purpose of this invention is to provide the conforming method and apparatus of a kind of raising fuel cell pack reaction gas resistance.Technical scheme of the present invention is: the conforming method of a kind of raising fuel cell pack reaction gas resistance, it is characterized in that the conforming method of described raising fuel cell pack reaction gas resistance is: the sectional area of the reaction gas air inlet of fuel metering battery pile end plate, sectional area with the primitive reaction gas air inlet of end plate is a starting point, turn sectional area gradually down, until the reaction gas resistance value of meeting the requirements of, described reaction gas air inlet comprises air inlet and hydrogen inlet.
The conforming method of a kind of raising fuel cell pack reaction gas resistance of the present invention, the sectional area that it is characterized in that the reaction gas air inlet of described fuel metering battery pile end plate is to install air inlet sectional area orifice regulating plate additional in the outer surface sealing of the reaction gas air inlet of end plate.
The conforming device of a kind of raising fuel cell pack reaction gas resistance of the present invention, it is characterized in that the conforming device of described raising fuel cell pack reaction gas resistance is an air inlet sectional area orifice regulating plate, described air inlet sectional area orifice regulating plate is the different serial orifice regulating plate of a cover air inlet sectional area, air inlet sectional area orifice regulating plate is a square plate, have in the middle of the square plate with end plate on reaction gas intake port shape same holes, four jiaos of square plate are provided with location hole, the position corresponding with location hole on the air inlet sectional area orifice regulating plate of end plate is provided with the end plate location hole that is mated, be provided with the seal groove of sealing usefulness around the reaction gas air inlet on the end plate, described serial air inlet sectional area orifice regulating plate is that the sectional area with the primitive reaction gas air inlet of end plate is a starting point, if 10-20 piece air inlet sectional area orifice regulating plate, the opening section of first air inlet sectional area orifice regulating plate is long-pending than the little 0.01-0.10mm of end plate reaction gas air inlet sectional area
2, the long-pending little 0.01-0.10mm of the long-pending opening section of the opening section of second air inlet sectional area orifice regulating plate than first air inlet sectional area orifice regulating plate
2, the rest may be inferred, the long-pending little 0.01-0.10mm of the long-pending opening section than last air inlet sectional area orifice regulating plate of the opening section of every later air inlet sectional area orifice regulating plate
2
A kind of using method that improves the conforming device of fuel cell pack reaction gas resistance of the present invention, it is characterized in that described using method comprises: cell stack assembled is made the reaction gas resistance measurement with serial air inlet sectional area orifice regulating plate, in the test result the opening section of the air inlet sectional area orifice regulating plate of the resistance index of approaching setting as the reaction gas air inlet sectional area of survey battery pile, and with this air inlet sectional area orifice regulating plate sealing and fixing at the reaction gas air inlet place of end plate, or make in addition the end plate identical and replace former end plate with the opening section of this air inlet sectional area orifice regulating plate.
The invention has the beneficial effects as follows: the consistency that can effectively improve the fuel cell pack resistance; Can be in real time the resistance of fuel cell pack be improved an order of magnitude, have realize simple, cost is low and the simple advantage of system configuration.
Description of drawings
The present invention has accompanying drawing five width of cloth, wherein
Fig. 1 is the tip plate configurations schematic diagram,
Fig. 2 is serial air inlet sectional area orifice regulating plate schematic diagram,
Fig. 3 is an air inlet sectional area orifice regulating plate sealing gasket schematic diagram,
Fig. 4 is serial hydrogen inlet sectional area orifice regulating plate schematic diagram,
Fig. 5 is a hydrogen inlet sectional area orifice regulating plate sealing gasket schematic diagram.
In the accompanying drawing, 100, fuel cell end plate, 101, air intlet, 102, cooling liquid inlet, 103, hydrogen inlet, 104, air outlet slit, 105, cooling liquid outlet, 106, hydrogen outlet, 107, seal groove, 108, the end plate location hole, 210～21n, air inlet sectional area orifice regulating plate series, 220, aeroseal pad, 310～31n, hydrogen inlet sectional area orifice regulating plate series, 320, the hydrogen sealing pad.
Embodiment
Reaction gas resistance with 10 150 joint fuel cell packs is adjusted to example, and the invention will be further described.
Air inlet sectional area orifice regulating plate is a square plate, have in the middle of the square plate with end plate 100 on reaction gas intake port shape same holes, four jiaos of square plate are provided with location hole, the position corresponding with location hole on the air inlet sectional area orifice regulating plate of end plate 100 is provided with the end plate location hole 108 that is mated, be provided with the seal groove 107 of sealing usefulness around the reaction gas air inlet on the end plate 100, series air inlet sectional area orifice regulating plate is that the sectional area with the primitive reaction gas air inlet of end plate is a starting point, if 10 air inlet sectional area orifice regulating plates, the opening section of first air inlet sectional area of air side orifice regulating plate 210 is long-pending than the little 0.05mm of end plate air side air inlet sectional area
2, the long-pending little 0.05mm of the long-pending opening section of the opening section of second air inlet sectional area orifice regulating plate 211 than first air inlet sectional area orifice regulating plate
2, the rest may be inferred, the long-pending little 0.05mm of the long-pending opening section than last air inlet sectional area orifice regulating plate of the opening section of every later air inlet sectional area orifice regulating plate
2The opening section of first air inlet sectional area of hydrogen gas side orifice regulating plate 310 is long-pending than the little 0.03mm of end plate hydrogen gas side air inlet sectional area
2, the long-pending little 0.03mm of the long-pending opening section of the opening section of second air inlet sectional area orifice regulating plate 311 than first air inlet sectional area orifice regulating plate
2, the rest may be inferred, the long-pending little 0.03mm of the long-pending opening section than last air inlet sectional area orifice regulating plate of the opening section of later every air inlet sectional area orifice regulating plate
2
With above-mentioned serial air inlet sectional area orifice regulating plate 10 150 joint air side resistances of fuel cell packs and hydrogen gas side resistances are regulated, it is 20kpa that air side is set the resistance index, when flow is 50Nm3/h; It is 25kpa that hydrogen gas side is set the resistance index, when flow is 10Nm3/h, respectively the air inlet sectional area orifice regulating plate sealing of different openings sectional area is contained in the reaction gas air inlet of end plate, ventilation test is fixed on the air inlet sectional area orifice regulating plate of the most approaching setting resistance index on the end plate 100 of the pile of being surveyed.Air intlet 101 sectional areas of end plate 100 are 3.4mm
2, end plate hydrogen inlet 103 sectional areas are 2.2mm
2
Series air inlet sectional area orifice regulating plate be numbered 210-219, hydrogen inlet sectional area orifice regulating plate be numbered 310-319, the numbering of each air inlet sectional area orifice regulating plate and its corresponding opening sectional area such as following table:
The air side air inlet sectional area orifice regulating plate sectional area and the numbering table of comparisons:
The hydrogen gas side air inlet sectional area orifice regulating plate sectional area and the numbering table of comparisons:
The result such as the following table of regulating:
Claims (4)
1. one kind is improved the conforming method of fuel cell pack reaction gas resistance, it is characterized in that the conforming method of described raising fuel cell pack reaction gas resistance is: the sectional area of the reaction gas air inlet of fuel metering cell end plate (100), sectional area with the primitive reaction gas air inlet of end plate (100) is a starting point, turn sectional area gradually down, until the reaction gas resistance value of meeting the requirements of, described reaction gas air inlet comprises air inlet (101) and hydrogen inlet (103).
2. according to the conforming method of the described a kind of raising fuel cell pack reaction gas resistance of claim 1, the sectional area that it is characterized in that the reaction gas air inlet of described fuel metering cell end plate is to install air inlet sectional area orifice regulating plate additional in the outer surface sealing of the reaction gas air inlet of end plate (100).
3. the conforming device of the described a kind of raising fuel cell pack reaction gas resistance of claim 2, the end plate that comprises fuel cell pack, it is characterized in that the conforming device of described raising fuel cell pack reaction gas resistance is an air inlet sectional area orifice regulating plate, described air inlet sectional area orifice regulating plate is the different serial orifice regulating plate of a cover air inlet sectional area, air inlet sectional area orifice regulating plate is a square plate, have in the middle of the square plate with end plate (100) and go up reaction gas air inlet (101,103) the identical hole of shape, four jiaos of square plate are provided with the orifice regulating plate location hole, the position corresponding with orifice regulating plate location hole on the air inlet sectional area orifice regulating plate of end plate (100) is provided with the end plate location hole (108) that is mated, reaction gas air inlet (101 on the end plate, 103) be provided with the seal groove (107) that seals usefulness all around, described serial air inlet sectional area orifice regulating plate is the primitive reaction gas air inlet (101 with end plate, 103) sectional area is a starting point, if 10-20 piece air inlet sectional area orifice regulating plate, first air inlet sectional area orifice regulating plate (210,310) opening section is long-pending than end plate reaction gas air inlet (101,103) the little 0.01-0.10mm of sectional area
2, the long-pending little 0.01-0.10mm of the long-pending opening section of the opening section of second air inlet sectional area orifice regulating plate (211,311) than first air inlet sectional area orifice regulating plate (210,310)
2, the rest may be inferred, the long-pending little 0.01-0.10mm of the long-pending opening section than last air inlet sectional area orifice regulating plate of the opening section of every later air inlet sectional area orifice regulating plate
2
4. the described a kind of using method that improves the conforming device of fuel cell pack reaction gas resistance of claim 3, it is characterized in that described using method comprises: cell stack assembled is made the reaction gas resistance measurement with serial air inlet sectional area orifice regulating plate, the long-pending reaction gas air inlet sectional area of the opening section of the air inlet sectional area orifice regulating plate of the resistance index of approaching setting in the test result as the battery pile of surveying, and with this air inlet sectional area orifice regulating plate sealing and fixing at the reaction gas air inlet place of end plate, or make in addition the end plate identical and replace former end plate with the opening section of this air inlet sectional area orifice regulating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105641297A CN102024970A (en) | 2010-11-29 | 2010-11-29 | Method and device for increasing resistance consistency of fuel cell stack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105641297A CN102024970A (en) | 2010-11-29 | 2010-11-29 | Method and device for increasing resistance consistency of fuel cell stack |
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| CN102024970A true CN102024970A (en) | 2011-04-20 |
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| CN2010105641297A Pending CN102024970A (en) | 2010-11-29 | 2010-11-29 | Method and device for increasing resistance consistency of fuel cell stack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111244523A (en) * | 2020-01-21 | 2020-06-05 | 武汉理工大学 | Manifold device for fuel cell stack |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201112486Y (en) * | 2007-09-28 | 2008-09-10 | 比亚迪股份有限公司 | Gas flow control device used for fuel battery |
| CN201552612U (en) * | 2009-10-29 | 2010-08-18 | 赵秀珠 | Hole puncher |
| CN201868511U (en) * | 2010-11-29 | 2011-06-15 | 新源动力股份有限公司 | Gas inlet sectional area hole adjusting plate for enhancing resistance consistency of fuel cell stack reaction gas |
-
2010
- 2010-11-29 CN CN2010105641297A patent/CN102024970A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201112486Y (en) * | 2007-09-28 | 2008-09-10 | 比亚迪股份有限公司 | Gas flow control device used for fuel battery |
| CN201552612U (en) * | 2009-10-29 | 2010-08-18 | 赵秀珠 | Hole puncher |
| CN201868511U (en) * | 2010-11-29 | 2011-06-15 | 新源动力股份有限公司 | Gas inlet sectional area hole adjusting plate for enhancing resistance consistency of fuel cell stack reaction gas |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111244523A (en) * | 2020-01-21 | 2020-06-05 | 武汉理工大学 | Manifold device for fuel cell stack |
| CN111244523B (en) * | 2020-01-21 | 2021-07-06 | 武汉理工大学 | Manifold device for fuel cell stack |
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Application publication date: 20110420 |