JPH0343964A - Utilization of fuel cell vessel purge gas and its equipment - Google Patents
Utilization of fuel cell vessel purge gas and its equipmentInfo
- Publication number
- JPH0343964A JPH0343964A JP1177069A JP17706989A JPH0343964A JP H0343964 A JPH0343964 A JP H0343964A JP 1177069 A JP1177069 A JP 1177069A JP 17706989 A JP17706989 A JP 17706989A JP H0343964 A JPH0343964 A JP H0343964A
- Authority
- JP
- Japan
- Prior art keywords
- purge gas
- fuel cell
- storage container
- gas
- hydrogen
- 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.)
- Pending
Links
Classifications
-
- 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
- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
- H01M8/04231—Purging of the reactants
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、燃料電池収納容器のパージガス利用方法及び
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and apparatus for utilizing purge gas for a fuel cell storage container.
燃料電池の運転温度は高温である。又高圧下で運転され
る為、燃料電池構成部材の酸化防止や燃料電池本体と収
納容器間の差圧発生防止、安全面の点から収納容器内を
不活性ガスでパージし、パージ後の排出ガスは大気中へ
放出している。The operating temperature of a fuel cell is high. In addition, since it is operated under high pressure, the inside of the storage container is purged with inert gas to prevent oxidation of the fuel cell components, to prevent the generation of differential pressure between the fuel cell body and the storage container, and from a safety perspective, and the gas is discharged after purging. Gas is released into the atmosphere.
前記従来技術ではパージ後の排出ガスを全て大気中へ放
出するため、使用量が多く不経済である。In the prior art, all the exhaust gas after purging is released into the atmosphere, so the amount used is large and it is uneconomical.
将来、燃料電池の大型化に伴いパージガスの使用量の増
大が考えられるので対策が必要となってくる。In the future, as fuel cells become larger, the amount of purge gas used is likely to increase, and countermeasures will be needed.
本発明の目的は、上記従来技術の欠点を解決するために
なされたものであり、パージガスの使用量を低減する方
法及び装置を提供することにある。An object of the present invention is to solve the above-mentioned drawbacks of the prior art, and to provide a method and apparatus for reducing the amount of purge gas used.
上記目的を達成するため、本発明は、燃料電池本体の収
納容器内をガスでパージする工程と、パージ後に排出さ
れた前記ガスを精製する工程と、精製後の前記ガスを前
記収納容器内へ再循環させる工程と、を含む燃料電池収
納容器パージガス利用方法である。In order to achieve the above object, the present invention includes a step of purging the inside of a storage container of a fuel cell main body with gas, a step of purifying the gas discharged after purging, and introducing the purified gas into the storage container. A method of utilizing purge gas in a fuel cell storage container includes a step of recirculating the purge gas.
上記、本発明の燃料電池収納容器パージガス利用方法の
好ましい態様としては、パージ後に排出されたガスを精
製工程前に冷却する工程を含むのがよく、また、精製工
程を経たガス中の水素を水素吸蔵合金に吸収させた後、
前記吸収された水素を取り出す工程を含むのがよい。A preferred embodiment of the above-mentioned method of utilizing purge gas in a fuel cell storage container of the present invention preferably includes a step of cooling the gas discharged after purging before the purification step, and also converts hydrogen in the gas that has undergone the refining step into hydrogen. After being absorbed into the storage alloy,
It is preferable to include a step of extracting the absorbed hydrogen.
また、本発明は、燃料電池本体の収納容器と、この収納
容器より排出されるパージガスの精製手段と、精製後の
パージガスを前記収納容器へ返送する手段と、を備えた
燃料電池収納容器パージガス利用装置である。Further, the present invention provides a fuel cell storage container purge gas utilization system comprising a storage container for a fuel cell main body, a means for purifying purge gas discharged from the storage container, and a means for returning the purified purge gas to the storage container. It is a device.
前記利用装置における好ましい態様としては、精製手段
より上流側にパージガスの冷却手段が配設、されている
のがよく、また、水素吸蔵合金よりなる吸収塔がパージ
ガス流路に配設されているのがよい。さらに、吸収塔は
精製手段より後流側に配設されていると共に、前記吸収
塔をバイパスするバイパスラインが弁で流路切り替え可
能に設けられ、前記吸収塔に加熱手段及び水素ガス取出
ラインが設けられているのがよい。In a preferred embodiment of the above-mentioned utilization device, it is preferable that a cooling means for the purge gas is disposed upstream of the purification means, and an absorption tower made of a hydrogen storage alloy is disposed in the purge gas flow path. Good. Further, the absorption tower is disposed on the downstream side of the purification means, and a bypass line that bypasses the absorption tower is provided so that the flow path can be switched with a valve, and the absorption tower is connected to a heating means and a hydrogen gas extraction line. It is good that it is provided.
本発明に係る利用方法においては、パージ後の排出ガス
のほとんどが再循環される。又吸収塔の水素吸蔵合金に
吸蔵された水素は別系統に導くことによって再利用が可
能となる。In the utilization method according to the present invention, most of the purged exhaust gas is recycled. Furthermore, the hydrogen stored in the hydrogen storage alloy of the absorption tower can be reused by leading it to another system.
以下、本発明の実施例を第１図に基づいて説明する。燃
料電池収納容器１からのパージガス出口流路６に冷却器
２、透過膜及び吸収剤からなるｆ＋’７製器３、及び水
素吸蔵合金からなる吸収塔４、弁１１〜１４が設けられ
ている。５はパージガス人口流路を示す。Embodiments of the present invention will be described below with reference to FIG. A purge gas outlet flow path 6 from the fuel cell storage container 1 is provided with a cooler 2, an f+'7 device 3 made of a permeable membrane and an absorbent, an absorption tower 4 made of a hydrogen storage alloy, and valves 11 to 14. . 5 indicates a purge gas artificial flow path.
燃料電池収納容器１をパージ後の排出ガスは、パージガ
ス出口流路６を通り冷却器２へ導かれ冷却された後、精
製器３へ入り、そこで不純物を除去された後、精製ガス
出口流路７を通り吸収塔４へ入る。吸収塔４においてガ
ス中の水素が吸蔵される。吸蔵基４を出たガスは再生パ
ージガス入口流路９を通り再び燃￥ｇ１電池収納容器１
へ（Ｊ（給される。通常運転時は弁１２及び弁１３は開
で、弁１１及び弁Ｊ４は閉している。After purging the fuel cell storage container 1, the exhaust gas passes through the purge gas outlet flow path 6, is guided to the cooler 2, is cooled, and then enters the purifier 3, where impurities are removed, and then passed through the purified gas outlet flow path. 7 and enters absorption tower 4. Hydrogen in the gas is stored in the absorption tower 4. The gas leaving the storage group 4 passes through the regenerated purge gas inlet channel 9 and is re-burned ￥g1 Battery storage container 1
(J) is supplied. During normal operation, valves 12 and 13 are open, and valves 11 and J4 are closed.
吸収塔４に吸蔵された水素を取出す場合は、弁１１及び
弁１４を開いた後、弁１２及び弁１３を閉じ、吸収塔４
の温度を加熱手段（■示せず）によって上昇させ、水素
の取出ライン１０を通して別系統へ水素を放出させ再利
用する。この間精製器３を出たガスは、バイパスとなる
精製ガス出口流路８を通り、再生パージガス入口流路９
を経て燃料電池収納容器１へ供給される。When removing hydrogen stored in the absorption tower 4, open the valves 11 and 14, then close the valves 12 and 13, and remove the hydrogen stored in the absorption tower 4.
The temperature of the hydrogen is raised by a heating means (not shown), and the hydrogen is released to another system through the hydrogen extraction line 10 and reused. During this time, the gas exiting the purifier 3 passes through the purified gas outlet flow path 8, which serves as a bypass, and passes through the regenerated purge gas inlet flow path 9.
The fuel is supplied to the fuel cell storage container 1 through the.
尚、上記実施例においては、冷却器２及び吸収塔４を設
けた例について説明したが、パージガスの温度によって
は、冷却器２は省いてもよく、また、吸収塔も水素ガス
濃度が低いときは省略してもよい。In the above embodiment, an example was explained in which the cooler 2 and the absorption tower 4 were provided, but depending on the temperature of the purge gas, the cooler 2 may be omitted, and the absorption tower may also be used when the hydrogen gas concentration is low. may be omitted.
本発明に係る方法によれば燃料電池収納容器パージガス
の使用量を大幅に低減できる。According to the method according to the present invention, the amount of fuel cell container purge gas used can be significantly reduced.
本発明に係る装置によれば、」二記方法を容易に実現で
きる。冷却手段を設けたり、水素吸蔵合金よりなる吸収
塔を設けることによって、−層、再循環するパージガス
の精製度を向上できる。更に水素吸蔵合金から水素を放
出させて再利用することにより、その面からも無駄を低
減できる。According to the apparatus according to the present invention, method 2 can be easily realized. By providing a cooling means or an absorption tower made of a hydrogen storage alloy, it is possible to improve the degree of purification of the recirculated purge gas. Furthermore, by releasing hydrogen from the hydrogen storage alloy and reusing it, waste can also be reduced.
第１図は本発明の一実施例の構成国である。 FIG. 1 shows the constituent countries of one embodiment of the present invention.
Claims (1)
と、パージ後に排出された前記ガスを精製する工程と、
精製後の前記ガスを前記収納容器内へ再循環させる工程
と、を含む燃料電池収納容器パージガス利用方法。 ２、パージ後に排出されたガスを精製工程前に冷却する
工程を含むことを特徴とする請求項１記載の燃料電池収
納容器パージガス利用方法。 ３、精製工程を経たガス中の水素を水素吸蔵合金に吸収
させた後、前記吸収された水素を取り出す工程を含むこ
とを特徴とする請求項１又は請求項２記載の燃料電池収
納容器パージガス利用方法。 ４、燃料電池本体の収納容器と、この収納容器より排出
されるパージガスの精製手段と、精製後のパージガスを
前記収納容器へ返送する手段と、を備えた燃料電池収納
容器パージガス利用装置。 ５、精製手段より上流側にパージガスの冷却手段が配設
されていることを特徴とする請求項４記載の燃料電池収
納容器パージガス利用装置。 ６、水素吸蔵合金よりなる吸収塔がパージガス流路に配
設されていることを特徴とする請求項４又は請求項５記
載の燃料電池収納容器パージガス利用装置。 ７、吸収塔が精製手段より後流側に配設されていると共
に、前記吸収塔をバイパスするバイパスラインが弁で流
路切り替え可能に設けられ、前記吸収塔に加熱手段及び
水素ガス取出ラインが設けられていることを特徴とする
請求項６記載の燃料電池収納容器パージガス利用装置。[Claims] 1. A step of purging the fuel cell main body and the inside of the storage container with gas, and a step of purifying the gas discharged after purging,
A method for utilizing a fuel cell storage container purge gas, the method comprising: recirculating the purified gas into the storage container. 2. The method for utilizing purge gas from a fuel cell storage container according to claim 1, further comprising the step of cooling the gas discharged after purging before the purification process. 3. The fuel cell storage container purge gas utilization according to claim 1 or claim 2, which includes a step of absorbing hydrogen in the gas that has undergone a purification process into a hydrogen storage alloy and then taking out the absorbed hydrogen. Method. 4. A fuel cell storage container purge gas utilization device comprising a storage container for a fuel cell main body, means for purifying purge gas discharged from the storage container, and means for returning the purified purge gas to the storage container. 5. The fuel cell storage container purge gas utilization apparatus according to claim 4, wherein a purge gas cooling means is provided upstream of the purification means. 6. The fuel cell storage container purge gas utilization apparatus according to claim 4 or 5, wherein an absorption tower made of a hydrogen storage alloy is disposed in the purge gas flow path. 7. An absorption tower is disposed on the downstream side of the purification means, and a bypass line that bypasses the absorption tower is provided so that the flow path can be switched by a valve, and the absorption tower is provided with a heating means and a hydrogen gas extraction line. 7. The fuel cell storage container purge gas utilization device according to claim 6, further comprising: a fuel cell storage container purge gas utilization device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1177069A JPH0343964A (en) | 1989-07-11 | 1989-07-11 | Utilization of fuel cell vessel purge gas and its equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1177069A JPH0343964A (en) | 1989-07-11 | 1989-07-11 | Utilization of fuel cell vessel purge gas and its equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0343964A true JPH0343964A (en) | 1991-02-25 |
Family
ID=16024579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1177069A Pending JPH0343964A (en) | 1989-07-11 | 1989-07-11 | Utilization of fuel cell vessel purge gas and its equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0343964A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002023657A3 (en) * | 2000-09-15 | 2003-05-08 | Siemens Ag | Fuel cell arrangement and method for operating a fuel cell arrangement |
| WO2002043174A3 (en) * | 2000-11-21 | 2003-08-07 | Forschungszentrum Juelich Gmbh | Direct methanol fuel cell stack with circuit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61114478A (en) * | 1984-11-06 | 1986-06-02 | Mitsubishi Electric Corp | fuel cell device |
| JPS62140375A (en) * | 1985-12-13 | 1987-06-23 | Hitachi Ltd | How to Start an Internally Reformed Molten Carbonate Fuel System |
-
1989
- 1989-07-11 JP JP1177069A patent/JPH0343964A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61114478A (en) * | 1984-11-06 | 1986-06-02 | Mitsubishi Electric Corp | fuel cell device |
| JPS62140375A (en) * | 1985-12-13 | 1987-06-23 | Hitachi Ltd | How to Start an Internally Reformed Molten Carbonate Fuel System |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002023657A3 (en) * | 2000-09-15 | 2003-05-08 | Siemens Ag | Fuel cell arrangement and method for operating a fuel cell arrangement |
| WO2002043174A3 (en) * | 2000-11-21 | 2003-08-07 | Forschungszentrum Juelich Gmbh | Direct methanol fuel cell stack with circuit |
| US7183015B2 (en) | 2000-11-21 | 2007-02-27 | Forschungszentrum Julich Gmbh | Fuel cell stack with circuit |
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