KR20050122770A - Hydrogen control device for fuel cell - Google Patents
Hydrogen control device for fuel cell Download PDFInfo
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- KR20050122770A KR20050122770A KR1020040048413A KR20040048413A KR20050122770A KR 20050122770 A KR20050122770 A KR 20050122770A KR 1020040048413 A KR1020040048413 A KR 1020040048413A KR 20040048413 A KR20040048413 A KR 20040048413A KR 20050122770 A KR20050122770 A KR 20050122770A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
- H01M8/04216—Reactant storage and supply, e.g. means for feeding, pipes characterised by the choice for a specific material, e.g. carbon, hydride, absorbent
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0662—Treatment of gaseous reactants or gaseous residues, e.g. cleaning
- H01M8/0687—Reactant purification by the use of membranes or filters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M2008/1095—Fuel cells with polymeric electrolytes
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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
본 발명은 연료전지의 수소량 조절 장치에 관한 것으로, 본 발명은 연료를 채운 연료저장통과, 연료저장통에 채워진 연료를 촉매반응 시키면서 적정량의 수소를 발생하도록 하는 수소조절수단과, 연료저장통에 발생하는 수소를 PEMFC로 공급하는 수소공급수단으로 구성함으로써, PEMFC에서 필요로 하는 수소량을 신속하면서도 정확하게 제어할 수 있어 시스템의 효율과 안정성을 크게 높일 수 있다.The present invention relates to an apparatus for controlling the amount of hydrogen in a fuel cell. The present invention relates to a fuel reservoir filled with fuel, a hydrogen regulating means for generating an appropriate amount of hydrogen while catalyzing the fuel filled in the fuel reservoir, and By configuring the hydrogen supply means for supplying hydrogen to the PEMFC, it is possible to control the amount of hydrogen required by the PEMFC quickly and accurately, thereby greatly increasing the efficiency and stability of the system.
Description
본 발명은 연료전지의 수소량 조절 장치에 관한 것으로, 특히 PEMFC에서 요구하는 수소량을 적절하게 공급할 수 있도록 하는 연료전지의 수소량 조절 장치에 관한 것이다.The present invention relates to an apparatus for controlling the amount of hydrogen in a fuel cell, and more particularly, to an apparatus for controlling the amount of hydrogen in a fuel cell that can properly supply the amount of hydrogen required by a PEMFC.
연료전지는 화학적 에너지를 직접 전기 에너지로 전환시키는 친환경적인 발전 장치로서, 최근 화석 연료의 대안으로 개발되고 있다. 연료전지는 수소를 포함한 연료와 산소를 포함한 공기 동시에 공급하여 수소와 산소의 전기화학적 반응을 유발하고, 이 전기화학적 반응 전후의 에너지 차를 전기 에너지로 직접 변환시키는 원리이다.Fuel cells are environmentally-friendly power generation devices that convert chemical energy directly into electrical energy. Recently, fuel cells have been developed as an alternative to fossil fuels. The fuel cell is supplied with a fuel containing hydrogen and air containing oxygen at the same time to induce an electrochemical reaction between hydrogen and oxygen, and converts the energy difference before and after the electrochemical reaction directly into electrical energy.
연료전지는 사용되는 연료의 종류, 운전 온도, 촉매 등에 따라 분류할 수 있으나, 그 중 연료의 종류에 따라서는 인산형 연료전지(Phosphoric Acid Fuel Cell), 알칼리형 연료전지(Alkaline Fuel Cell), 고분자 전해질형 연료전지(Proton Exchange Membrane Fuel Cell), 용융탄산염형 연료전지(Molten Carbonate Fuel Cell), 고체산화물형 연료전지(Solid Oxide Fuel Cell), 직접메탄올 연료전지(Direct Methanol Fuel Cell) 등으로 구분할 수 있다.Fuel cells can be classified according to the type of fuel used, operating temperature, catalyst, etc. Among them, phosphate acid fuel cell, alkaline fuel cell, polymer It can be divided into Proton Exchange Membrane Fuel Cell, Molten Carbonate Fuel Cell, Solid Oxide Fuel Cell, and Direct Methanol Fuel Cell. have.
고분자전해질형 연료전지(이하,PEMFC로 약칭함)는 인산형 연료전지보다 약 10년 정도 뒤져 있지만 인산형에 비해 저온에서 동작되며 출력 밀도가 크므로 소형화가 가능할 뿐만 아니라 기술이 인산형과 유사하여 응용 기술의 적용이 쉽다는 장점이 있다.The polymer electrolyte fuel cell (hereinafter abbreviated as PEMFC) is about 10 years behind the phosphate fuel cell, but it operates at a lower temperature than the phosphate type and has a high power density. The advantage is that the application technology is easy to apply.
또, PEMFC의 전해질은 액체가 아닌 고체 고분자 중합체(Membrane)로서 이러한 멤브레인을 이용하는 경우 연료에서 수소의 발생을 촉진하기 위한 촉매로는 주로 백금을 사용하고 있다. In addition, the electrolyte of PEMFC is a solid polymer polymer (Membrane), not a liquid, and when using such a membrane, platinum is mainly used as a catalyst for promoting the generation of hydrogen in fuel.
본 발명은 PEMFC에서 필요로 하는 수소량을 항상 적절하게 공급하여 상기한 PEMFC의 효율을 높일 수 있는 연료전지의 수소량 조절 장치를 제공하려는데 그 목적이 있다. An object of the present invention is to provide an apparatus for controlling the amount of hydrogen in a fuel cell that can always supply the amount of hydrogen required by the PEMFC appropriately to increase the efficiency of the PEMFC.
본 발명의 목적을 달성하기 위하여, 연료를 채운 연료저장통과, 연료저장통에 채워진 연료를 촉매반응 시키면서 적정량의 수소를 발생하도록 하는 수소조절수단과, 연료저장통에 발생하는 수소를 PEMFC로 공급하는 수소공급수단으로 구성한 것을 특징으로 하는 연료전지의 수소량 조절 장치를 제공한다.In order to achieve the object of the present invention, the fuel reservoir filled with fuel, the hydrogen control means for generating an appropriate amount of hydrogen while catalyzing the fuel filled in the fuel reservoir, and the hydrogen supply for supplying hydrogen generated in the fuel reservoir to the PEMFC It provides a hydrogen amount control device of a fuel cell, characterized in that configured by means.
이하, 본 발명에 의한 연료전지의 수소량 조절 장치를 첨부도면에 도시한 일실시예에 의거하여 상세하게 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, the hydrogen amount control apparatus of the fuel cell by this invention is demonstrated in detail based on one Example shown in an accompanying drawing.
도 1은 본 발명 연료전지의 수소량 조절 장치를 보인 개략도이고, 도 2는 본 발명 연료전지의 수소량 조절 장치에 대한 변형예를 보인 개략도이다.1 is a schematic view showing a hydrogen amount control device of the fuel cell of the present invention, Figure 2 is a schematic view showing a modification to the hydrogen amount control device of the fuel cell of the present invention.
도 1에 도시한 바와 같이 본 발명에 의한 연료전지의 수소량 조절 장치는, NaBH4와 같은 연료를 채운 연료저장통(1)과, 연료저장통(1)에 폐루프 형상으로 연결하는 연료순환라인(2)과, 연료순환라인(2)의 양단과 이를 연결하는 연료저장통(1)의 입출구에 각각 설치하여 연료의 순환을 조절하는 출구측 연료순환조절밸브(3a) 및 입구측 연료순환조절밸브(3b)와, 연료순환라인(2)의 중간에 설치하여 상기 연료저장통(1)의 연료를 펌핑하는 연료펌프(4)와, 연료펌프(4)의 출구측에 설치하여 연료로부터 상기 PEMFC(F)에서 필요로 하는 수소량을 발생하도록 하는 촉매부(5)와, 연료저장통(1)과 PEMFC(F)를 연결하는 수소공급라인(6)과, 수소공급라인(6)의 입구단과 이를 연결하는 연료저장통(1)의 출구에 설치하여 수소의 공급여부를 조절하는 수소공급조절밸브(7)를 포함한다.As shown in FIG. 1, an apparatus for controlling hydrogen in a fuel cell according to the present invention includes a fuel storage tank 1 filled with fuel such as NaBH 4, and a fuel circulation line connected to the fuel storage cylinder 1 in a closed loop shape ( 2) and an outlet fuel circulation control valve 3a and an inlet fuel circulation control valve which are installed at both ends of the fuel circulation line 2 and at the inlet and outlet of the fuel reservoir 1 connecting the fuel circulation line 2 to control the circulation of the fuel. 3b), a fuel pump 4 installed in the middle of the fuel circulation line 2 to pump the fuel in the fuel reservoir 1, and a fuel pump 4 installed at the outlet of the fuel pump 4 to discharge the PEMFC (F) from the fuel. ) And a hydrogen supply line (6) connecting the catalyst (5) to generate the required amount of hydrogen in the fuel cell, the fuel reservoir (1) and the PEMFC (F), and the inlet end of the hydrogen supply line (6) It is installed at the outlet of the fuel reservoir (1) comprises a hydrogen supply control valve (7) for controlling the supply of hydrogen .
연료저장통(1)은 그 내부에 상기한 NaBH4와 H2O을 수용하고, 촉매부(5)는 상기 PEMFC(F)에서 일반적으로 사용되고 있는 백금 또는 수소화합물을 촉매제로 사용한다.The fuel reservoir 1 accommodates NaBH 4 and H 2 O as described above, and the catalyst portion 5 uses platinum or hydrogen compounds generally used in the PEMFC (F) as catalysts.
또, 연료저장통(1)과 연료펌프(4)의 사이에는 반응중에 발생하는 부산물(NaBO2)을 걸러내기 위한 부산물 여과필터(8)를 더 구비하는 것이 연료의 순도를 높이는데 바람직하다.In addition, it is preferable to further increase the purity of the fuel by further providing a by-product filtration filter 8 for filtering the by-product NaBO 2 generated during the reaction between the fuel reservoir 1 and the fuel pump 4.
또, 연료저장통(1)과 PEMFC(F) 사이 또는 후술할 변형예에서 연료저장통(1)과 수소펌프(10)의 사이에는 여분의 수소를 저장하였다가 필요시 공급할 수 있도록 수소저장통(9)을 더 구비할 수도 있다.In addition, between the fuel reservoir 1 and the PEMFC (F) or in the modification described later between the fuel reservoir 1 and the hydrogen pump 10, the hydrogen reservoir (9) so that excess hydrogen can be stored and supplied when necessary. It may be further provided.
한편, 도 2에서와 같이 연료저장통(1)과 PEMFC(F)를 연결하는 수소공급라인(6)의 중간에는 상기 연료저장통(1)에서 수소를 펌핑하여 PEMFC(F)에 공급할 수 있는 수소펌프(10)를 추가적으로 설치하여 상기한 연료저장통(1)에 채워진 수소를 PEMFC(F)에서 필요로 하는 양 만큼 적정하게 조절하여 PEMFC(F)로 공급하도록 할 수도 있다.On the other hand, as shown in Figure 2 in the middle of the hydrogen supply line 6 connecting the fuel reservoir (1) and the PEMFC (F), the hydrogen pump that can be supplied to the PEMFC (F) by pumping hydrogen in the fuel reservoir (1) (10) may be additionally installed so that the hydrogen filled in the fuel reservoir 1 is properly adjusted by the amount required by the PEMFC (F) to be supplied to the PEMFC (F).
상기와 같은 본 발명 연료전지의 수소량 조절 장치는 다음과 같은 작용 효과가 있다.The hydrogen amount control device of the fuel cell of the present invention as described above has the following effects.
즉, PEMFC 시스템에 전원이 인가되면 연료저장통(1)의 입출구에 장착된 출구측 연료순환조절밸브(3a)와 입구측 연료순환조절밸브(3b)가 열리는 동시에 연료펌프(4)가 구동하여 상기 연료저장통(1)에 채워져 있던 연료를 펌핑한다. 이 연료는 연료순환라인(2)을 따라 흘러가다가 촉매부(5)를 통과하면서 수소를 발생한 후 다시 연료저장통(1)으로 복귀하는 일련의 과정을 반복한다.That is, when power is applied to the PEMFC system, the outlet fuel circulation control valve 3a and the inlet fuel circulation control valve 3b mounted at the inlet and outlet of the fuel reservoir 1 are opened, and the fuel pump 4 is driven to operate the above. The fuel filled in the fuel reservoir 1 is pumped. This fuel flows along the fuel circulation line 2, passes through the catalyst section 5, generates hydrogen, and then returns to the fuel reservoir 1 again.
이 과정에서 발생하는 수소는 연료저장통(1)의 일측에 설치한 수소조절밸브(7)가 열림에 따라 수소공급라인을 따라 PEMFC(F)의 스택(미도시)쪽으로 이동을 하여 별도의 라인을 통해 공급되는 공기와 함께 전술한 전기화학적 반응을 일으켜 전기 에너지를 발생하게 된다.Hydrogen generated in this process moves to the stack (not shown) of the PEMFC (F) along the hydrogen supply line as the hydrogen control valve 7 installed on one side of the fuel reservoir 1 opens. Together with the air supplied through the above-mentioned electrochemical reaction, electric energy is generated.
이때, PEMFC 시스템에는 환경 변화에 따른 PEMF(F)C에서의 적정 수소 요구량을 검출하여 이에 합당한 수소를 공급할 수 있도록 하여야 하는데, 이를 위하여는 상기한 촉매부(5)에 채워지는 촉매량을 조절하여 원천적으로 수소의 발생량을 조절함으로써 항상 적정한 수소를 PEMFC(F)에 공급하거나 또는 연료순환라인(2)의 중간에 설치한 연료펌프(4)를 온(ON)/오프(OFF)/역전(REVERSE) 운전하여 수소의 공급량을 미세하게 조절할 수도 있다. 또, 수소공급라인(6)의 중간에 수소펌프(10)를 설치하는 경우에는 이 수소펌프(10)를 이용하여서도 PEMFC(F)에 수소를 적정하게 공급할 수 있다.At this time, the PEMFC system should be able to detect the appropriate hydrogen demand in PEMF (F) C according to environmental changes to supply the appropriate hydrogen, for this purpose, by adjusting the amount of catalyst to be filled in the catalyst unit (5) By supplying appropriate hydrogen to the PEMFC (F) or turning on / off / reversing the fuel pump 4 installed in the middle of the fuel circulation line. It is also possible to finely control the hydrogen supply amount by operating. In the case where the hydrogen pump 10 is provided in the middle of the hydrogen supply line 6, hydrogen can be appropriately supplied to the PEMFC (F) even by using the hydrogen pump 10.
본 발명에 의한 연료전지의 수소량 조절 장치는, 연료순환라인의 중간에 촉매부를 두어 그 연료순환라인을 순환하는 연료로부터 PEMFC에서 필요로 하는 수소를 적당하게 발생하도록 하거나 수소공급라인의 중간에 수소펌프를 두어 PEMFC에서 필요로 하는 적정량의 수소를 펌핑 공급할 수 있도록 함으로써, PEMFC에서 필요로 하는 수소량을 신속하면서도 정확하게 제어할 수 있어 시스템의 효율과 안정성을 크게 높일 수 있다.The apparatus for controlling the hydrogen content of a fuel cell according to the present invention includes a catalyst section in the middle of a fuel circulation line so as to properly generate hydrogen required in the PEMFC from fuel circulating the fuel circulation line or in the middle of a hydrogen supply line. By providing a pump to supply the appropriate amount of hydrogen required by the PEMFC, it is possible to control the amount of hydrogen required by the PEMFC quickly and accurately, greatly improving the efficiency and stability of the system.
본 발명은 상술한 실시례로서만 국한되는 것은 아니고 본 발명의 사상 및 범위내에서 다양한 변형이 가능한 것이다.The present invention is not limited only to the above-described embodiments, and various modifications are possible within the spirit and scope of the present invention.
도 1은 본 발명 연료전지의 수소량 조절 장치를 보인 개략도,1 is a schematic view showing a hydrogen amount control device of the fuel cell of the present invention,
도 2는 본 발명 연료전지의 수소량 조절 장치에 대한 변형예를 보인 개략도.2 is a schematic view showing a modification to the hydrogen amount control device of the fuel cell of the present invention.
** 도면의 주요 부분에 대한 부호의 설명 **** Description of symbols for the main parts of the drawing **
1 : 연료저장통 2 : 연료순환라인1: fuel reservoir 2: fuel circulation line
3a,3b : 출구측,입구측 연료순환밸브 4 : 연료펌프3a, 3b: outlet and inlet fuel circulation valve 4: fuel pump
5 : 촉매부 6 : 수소공급라인5: catalyst part 6: hydrogen supply line
7 : 수소공급조절밸브 8 : 여과필터7: hydrogen supply control valve 8: filtration filter
9 : 수소저장통 10 : 수소펌프9: hydrogen storage container 10: hydrogen pump
F : PEMFCF: PEMFC
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040048413A KR20050122770A (en) | 2004-06-25 | 2004-06-25 | Hydrogen control device for fuel cell |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040048413A KR20050122770A (en) | 2004-06-25 | 2004-06-25 | Hydrogen control device for fuel cell |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20050122770A true KR20050122770A (en) | 2005-12-29 |
Family
ID=37294534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020040048413A KR20050122770A (en) | 2004-06-25 | 2004-06-25 | Hydrogen control device for fuel cell |
Country Status (1)
Country | Link |
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KR (1) | KR20050122770A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101406152B1 (en) * | 2012-04-04 | 2014-06-12 | 황신연 | Hydrogen suppliment apparatus and self electric energy generating cooling and heating system with the same |
-
2004
- 2004-06-25 KR KR1020040048413A patent/KR20050122770A/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101406152B1 (en) * | 2012-04-04 | 2014-06-12 | 황신연 | Hydrogen suppliment apparatus and self electric energy generating cooling and heating system with the same |
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