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公开(公告)号：US06312842B1
公开(公告)日：2001-11-06
申请号：US09201262
申请日：1998-11-30
IPC分类号： H01M800
CPC分类号： H01M8/04029 , H01M8/04067 , H01M8/04097 , H01M8/04156 , H01M8/04291 , H01M8/0618
摘要： The invention is a water retention system for a fuel cell power plant having at least one fuel cell and a coolant loop with a coolant reservoir and coolant passages for directing a coolant fluid through the fuel cell. An air conditioning unit is provided for directing a refrigerant to a first heat exchanger that cools secondary process air and for directing water condensed from the secondary process air to the coolant reservoir. The air conditioning unit also directs the refrigerant to a second heat exchanger that cools the coolant fluid within the coolant loop, and to a third heat exchanger that cools a plant exhaust stream exiting the plant. Water condensed from the plant exhaust is also directed from the third heat exchanger into the coolant reservoir.
摘要翻译： 本发明是用于燃料电池发电厂的保水系统，其具有至少一个燃料电池和具有冷却剂储存器的冷却剂回路和用于引导冷却剂流体通过燃料电池的冷却剂通道。 提供一个空调单元，用于将制冷剂引导到冷却二次处理空气的第一热交换器，并将从第二工艺空气冷凝的水引导到冷却剂储存器。 空调单元还将制冷剂引导到冷却冷却剂回路内的冷却剂流体的第二热交换器，以及冷却离开设备的工厂废气流的第三热交换器。 从工厂废气冷凝的水也从第三热交换器引导到冷却剂储存器中。
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2.发明授权公开(公告)号：US06277508B1
公开(公告)日：2001-08-21
申请号：US09118546
申请日：1998-07-17
IPC分类号： H01M804
CPC分类号： H01M8/04291 , H01M8/04022 , H01M8/04029 , H01M8/04141 , H01M8/04156 , H01M8/0662 , H01M8/0668
摘要： Methods and apparatus for improving water management in a PEM fuel cell power supply are disclosed. The fuel cell power supply includes a combustion unit that combusts anode exhaust, producing combusted exhaust that includes water. The combusted exhaust is recycled to the anode input and/or the cathode input. The recycling system can include additional devices, for example, a CO removal device for removing CO from the combusted exhaust prior to recycling to the anode. A fuel processor can be thermally coupled to the combustion unit that combusts the anode exhaust. One advantage of the invention is that the condenser typically employed for recovering water from combusted exhaust can be eliminated, of reduced capacity or operated less frequently, thereby reducing the cost and/or the complexity of the fuel cell power supply.
摘要翻译： 公开了一种用于改进PEM燃料电池电源中的水管理的方法和装置。 燃料电池电源包括燃烧阳极排气的燃烧单元，产生包括水的燃烧废气。 燃烧的废气再循环到阳极输入和/或阴极输入端。 回收系统可以包括附加装置，例如用于在再循环到阳极之前从燃烧废气中除去CO的CO去除装置。 燃料处理器可以热联接到燃烧单元，燃烧阳极排气。 本发明的一个优点是通常用于从燃烧废气中回收水的冷凝器可被消除，容量降低或操作较少，从而降低燃料电池电源的成本和/或复杂性。
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公开(公告)号：US06521367B2
公开(公告)日：2003-02-18
申请号：US09731307
申请日：2000-12-06
申请人： Carl Anthony Reiser
发明人： Carl Anthony Reiser
IPC分类号： H01M200
CPC分类号： H01M4/8605 , H01M4/96 , H01M8/04119 , H01M8/1007
摘要： The invention is a fuel cell with an electrolyte dry-out barrier to restrict loss of water from the electrolyte. The fuel cell includes: an anode catalyst and a cathode catalyst secured to opposed sides of an electrolyte; an anode flow field disposed adjacent the anode catalyst for directing the reducing fluid to pass adjacent the anode catalyst, and a cathode flow field disposed adjacent the cathode catalyst for directing the process oxidant stream to pass adjacent the cathode catalyst; and, an anode electrolyte dry-out barrier secured between the electrolyte and the anode flow field for restricting transfer of water from the electrolyte into the anode flow field. The anode electrolyte dry-out barrier extends from adjacent an entire reducing fluid inlet and along an entire reducing fluid flow path a distance that is adequate for the reducing fluid stream flowing through the anode flow field to become saturated with water. The fuel cell may also include a cathode electrolyte dry-out barrier secured between the electrolyte and the cathode flow field. The anode and/or cathode electrolyte dry-out barriers may consist of polymeric sealants coating or impregnating barrier regions of porous layers between the electrolyte and the anode and/or cathode flow fields.
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