JP2010541150A - 燃料電池装置 - Google Patents
燃料電池装置 Download PDFInfo
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- JP2010541150A JP2010541150A JP2010526357A JP2010526357A JP2010541150A JP 2010541150 A JP2010541150 A JP 2010541150A JP 2010526357 A JP2010526357 A JP 2010526357A JP 2010526357 A JP2010526357 A JP 2010526357A JP 2010541150 A JP2010541150 A JP 2010541150A
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- Prior art keywords
- water
- fuel cell
- cathode
- channel
- container
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- Life Sciences & Earth Sciences (AREA)
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- Check Valves (AREA)
Abstract
【解決手段】燃料電池スタック(110)を含む燃料電池装置(100)の停止運転の方法であって、順次に、(i)前記燃料電池スタック(110)への燃料の供給を停止するステップと、(ii)前記燃料電池スタック(110)を通り抜ける陰極流路を含む前記燃料電池装置(100)の陰極システムと連通する排出路(122)上の閉塞バルブ(120)を閉じるステップと、(iii)前記燃料電池スタック(110)内の陰極空気流入口(126)と連通する空気圧縮装置(133)により前記陰極システムを加圧するステップと、(iv)前記陰極流路から水を排出するステップとを含む運転方法。
【選択図】図1
Description
(ii)前記燃料電池装置の陰極システム(a cathode system)と連通する(fluid communication)排出路上の閉塞バルブを閉じる。前記陰極システムは、前記燃料電池スタックを通り抜ける陰極流路を含む。
(iii)前記燃料電池スタック内の陰極空気流入口(a cathode air inlet port)と連通する空気圧縮装置により前記陰極システムを加圧する。
(iv)前記陰極流路から水を排出する。
Claims (31)
- 燃料電池スタックを含む燃料電池装置の停止運転の方法であって、
順次に、
(i)前記燃料電池スタックへの燃料の供給を停止するステップと、
(ii)前記燃料電池スタックを通り抜ける陰極流路を含む前記燃料電池装置の陰極システムと連通する排出路上の閉塞バルブを閉じるステップと、
(iii)前記燃料電池スタック内の陰極空気流入口と連通する空気圧縮装置により前記陰極システムを加圧するステップと、
(iv)前記陰極流路から水を排出するステップとを含む運転方法。 - 請求項1に記載された方法であって、
前記ステップ(iv)は、前記燃料電池スタック内の陰極注水口と連通する陰極注水路と、水分離器と、熱交換器と、水帰還路とのうちの1つ、またはそれより多くを通じて、前記陰極流路から水を排出する運転方法。 - 請求項2に記載された方法であって、
水を、前記陰極流路から耐熱性容器へと排出する運転方法。 - 請求項3に記載された方法であって、
水を、前記陰極流路の排出路にある前記水分離器を通して前記容器の中へと排出する運転方法。 - 請求項3または4に記載された方法であって、
前記容器は、真空で耐熱化された瓶である運転方法。 - 請求項3乃至5の何れかに記載された方法であって、
前記容器は、前記容器から前記燃料電池スタック内の注水口へと水を供給するように構成されたポンプを含む運転方法。 - 請求項6に記載された方法であって、
前記ポンプのポンプヘッドは、前記容器内の水に浸されている運転方法。 - 請求項7に記載された方法であって、
前記ポンプのモータ部分は、前記容器の貯水容積の外に配置されており、
前記モータ部分は、駆動軸により前記ポンプヘッドと接続されている運転方法。 - 請求項4に記載された方法であって、
前記排出路の中と、前記燃料電池スタックと前記容器の間の前記注水路の中と、にある実質的に全部の水を前記容器へと排出するまで、前記空気圧縮装置を運転する運転方法。 - 請求項3乃至9の何れかに記載された方法であって、
続いて、
(v)温度制御された加熱要素の手段により、前記容器内の水を予め設定された温度より高く維持するステップをさらに含む運転方法。 - 請求項10に記載された方法であって、
前記温度制御された加熱要素を、前記閉塞バルブを閉じた後、予め設定された時間、機能停止させる運転方法。 - 請求項3乃至11の何れかに記載された方法であって、
前記容器は、前記燃料電池装置が停止した後、前記容器内の水を解凍するように構成された加熱器を含む運転方法。 - 請求項3乃至12の何れかに記載された方法であって、
水を、前記熱交換器と前記水分離器の両方を通して、前記容器へと排出する運転方法。 - 請求項2に記載された方法であって、
水を、前記水分離器を通して前記容器へと流す前に、前記熱交換器を通して前記陰極流路から排出する運転方法。 - 請求項1乃至14の何れかに記載された方法であって、
前記空気圧縮装置を、前記閉塞バルブを閉じた後、予め設定された時間、運転する運転方法。 - 請求項1乃至14の何れかに記載された方法であって、
前記空気圧縮装置を、前記陰極流路内の水が予め定められた水位に到達するまで運転する運転方法。 - 燃料電池スタックと、陰極システムと、空気圧縮装置と、断熱された容器と含む燃料電池装置であって、
前記陰極システムは、陰極流路を有しており、
前記陰極流路は、直列接続された、陰極空気流入路と、前記燃料電池スタック内の陰極部と、陰極出口流路とを含み、前記燃料電池スタックに空気を通すように構成されており、
前記空気圧縮装置は、前記陰極空気流入路と連通しており、
前記容器は、前記陰極流路から水帰還路を通じて水を受けるように構成されており、
前記装置の運転が停止すると、水を、前記陰極流路から前記水帰還路を通して前記容器へと排出するように構成されている燃料電池装置。 - 請求項17に記載された燃料電池装置であって、
前記容器は、前記燃料電池スタック内の陰極注水口を含む注水路と流路が接続されており、
前記注水路は、水が前記燃料電池スタックの前記陰極部から前記容器の中へと流れるように構成されている燃料電池装置。 - 請求項18に記載された燃料電池装置であって、
前記注水路は、逆流防止バルブを含んでおり、
前記逆流防止バルブは、前記バルブにわたる圧力差が、前記燃料電池装置の運転中のものから逆転したときに、水を前記陰極流路から前記容器へと流すように構成されている燃料電池装置。 - 第1の供給口と、第2の供給口と、逆流止め弁と、バイパス流路と、封止弁とを含む逆流防止バルブであって、
前記逆流止め弁は、前記第1の供給口と前記第2の供給口とを結ぶ主流路内にあって、流体を前記第1の供給口から前記第2の供給口へと流し、その逆方向への流体の流れを防ぐように構成されており、
前記バイパス流路は、前記主流路と連通しており、
前記封止弁は、前記バイパス路と浄化口の間において前記バイパス路の端部を圧迫しており、
前記封止弁は、前記第1の供給口における流圧が前記第2の供給口における流圧を超えたとき、前記バイパス路の封止を維持することにより、前記主流路から前記バイパス流路を通って前記浄化口へと至る流れを妨げて、前記第2の供給口における流圧が前記第1の供給口における流圧を超えたとき、前記第2の供給口から前記バイパス流路を通って前記浄化口へと至る流れを許容するように構成されている逆流防止バルブ。 - 請求項20に記載された逆流防止バルブであって、
前記封止弁は、前記第2の供給口における流圧が前記第1の供給口における流圧を、予め定められた量だけ超えたとき、前記第2の供給口から前記バイパス流路を通って前記浄化口へと至る流れを許容するように構成されている逆流防止バルブ。 - 請求項21に記載された逆流防止バルブであって、
前記予め定められた量は、300(mBar)より少なくない逆流防止バルブ。 - 請求項20乃至22の何れかに記載された逆流防止バルブであって、
前記封止弁は、弾性のダイヤフラムを含み、その一方の面が、前記第1の供給口と連通し、その反対面が、前記バイパス路の端部を圧迫している逆流防止バルブ。 - 請求項20乃至23の何れかに記載された逆流防止バルブであって、
前記第1の供給口と前記封止弁を結ぶ連結流路を含む逆流防止バルブ。 - 請求項20乃至24の何れかに記載された逆流防止バルブを含む燃料電池装置であって、
前記逆流防止バルブの前記第2の供給口は、陰極注水路と接続されており、
前記第1の供給口は、ポンプと接続されており、
前記浄化口は、保水容器の内部容積と連通している燃料電池装置。 - 燃料電池スタックと、陰極システムと、熱交換器とを含む燃料電池装置であって、
前記陰極システムは、陰極流路を有しており、
前記陰極流路は、直列接続された、陰極空気流入路と、前記燃料電池スタック内の陰極部と、陰極出口流路とを含み、前記燃料電池スタックに空気を通すように構成されており、
前記熱交換器は、水分離器と直列接続され、前記陰極流路の前記陰極出口流路と接続されており、
前記水分離器の排水口流路は、第1の水帰還路によって保水容器に接続されている燃料電池装置。 - 請求項26に記載された燃料電池装置であって、
前記熱交換器の排水口は、第2の水帰還路によって前記保水容器と接続されている燃料電池装置。 - 請求項27に記載された燃料電池装置であって、
前記第1及び第2の水帰還路の各々に水ポンプを含む燃料電池装置。 - 添付図面を参照して、実質的に本明細書に記載された燃料電池装置。
- 添付図面を参照して、実質的に本明細書に記載された燃料電池スタックの停止運転の方法。
- 図3と図4aと図4bの添付図面を参照して、実質的に本明細書に記載された逆流防止バルブ。
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