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公开(公告)号：US06828048B2
公开(公告)日：2004-12-07
申请号：US09992591
申请日：2001-11-06
IPC分类号： H01M804
CPC分类号： H01M8/04231 , B01J19/0006 , B01J2208/00309 , B01J2208/00716 , B01J2219/00006 , B01J2219/00225 , B01J2219/00252 , C01B3/48 , C01B2203/0227 , C01B2203/0283 , C01B2203/044 , C01B2203/047 , C01B2203/066 , C01B2203/1609 , H01M8/0612 , H01M8/0618 , H01M8/0662 , H01M8/0668 , H01M8/0675 , H01M8/10
摘要： A fuel cell system that includes fuel processing components, such as a reformer and shift converter, for converting an organic fuel to hydrogen, is shut-down by disconnecting the fuel cell from its load and purging the fuel processing components of residual hydrogen with a flow of air. The purge air may be forced through the components in series or in parallel, using a blower; or, the purge air may be allowed to enter the components through a low inlet, whereupon the air rises through the components by natural circulation and exits through a high outlet, along with the residual hydrogen.
摘要翻译： 燃料电池系统包括用于将有机燃料转化为氢的燃料处理部件，例如重整器和换档转换器，通过将燃料电池从其负载断开并用流动来清除残余氢气的燃料处理部件来关闭 的空气。 可以使用鼓风机将吹扫空气串联或并联地强制通过组件; 或者，可以通过低入口使吹扫空气进入部件，于是空气通过自然循环而上升通过部件，并与残留的氢气一起通过高出口排出。
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2.发明授权Predictive control arrangement for load-following fuel cell-powered applications 有权负载跟随燃料电池供电应用的预测控制装置公开(公告)号：US06393354B1
公开(公告)日：2002-05-21
申请号：US09736098
申请日：2000-12-13
IPC分类号： G06G770
CPC分类号： H01M16/003 , B60L11/1881 , B60L11/1892 , B60L11/1894 , H01M8/04223 , H01M8/043 , H01M8/04559 , H01M8/04589 , H01M8/04753 , H01M8/04768 , H01M8/04992 , H01M8/24 , Y02T90/34 , Y10T477/45
摘要： A method and system are provided for controlling a fuel cell power plant (10). A demand signal (Mld) representing the anticipated current/power required by the electrical load(s) is provided. A current signal (Iap) representative of the actual current drawn by the load(s) (20) is provided. The greater of the demand signal (Mld) and the current signal (Iap) is selected (46) and utilized to provide a control signal (Mx, Mx′, Mx″) for regulating one or more of the reactants and coolant (24). One or more status signals (Xp, Xp′, Xp″, Vap) indicative of the status of a regulated one of more of the reactant/coolant and/or a respective operating process effected, is provided. Each status signal is transformed to a respective load capability signal (61, 61′, 61″). The lesser of the demand signal (Mld) and each of the load capability signals (61, 61′, 61 ″) is selected (62) to provide an output signal (Mi) for commensurately controlling a system load (20, 32).
摘要翻译： 提供了一种用于控制燃料电池发电厂（10）的方法和系统。 提供表示电负载所需的预期电流/功率的需求信号（Mld）。 提供代表由负载（20）提取的实际电流的电流信号（Iap）。 选择需求信号（Mld）和电流信号（Iap）中的较大者（46）并用于提供用于调节一个或多个反应物和冷却剂（24）的控制信号（Mx，Mx'，Mx“） ）。 提供了指示反应物/冷却剂中的更多的一种或多种反应物/冷却剂的状态的一个或多个状态信号（Xp，Xp'，Xp“，Vap）。 每个状态信号被变换为相应的负载能力信号（61,61'，61“）。 选择要求信号（Mld）中的较小者和每个负载能力信号（61,61'，61“）（62）以提供用于相应地控制系统负载（20,32）的输出信号（Mi） 。
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3.发明授权Water management system for solid polymer electrolyte fuel cell power plants 失效固体聚合物电解质燃料电池发电厂水管理系统
公开(公告)号：US5503944A
公开(公告)日：1996-04-02
申请号：US497674
申请日：1995-06-30
CPC分类号： H01M8/04119 , H01M8/04029 , H01M2300/0082 , H01M8/04291
摘要： A simplified solid polymer electrolyte fuel cell power plant utilizes porous conductive separator plates having central passages which are filled with circulating coolant water. The coolant water passes through a heat exchanger which rejects heat generated in the power plant. Water appearing on the cathode side of each cell membrane is pumped into the water circulation passages through the porous oxidant reactant flow field plates by a positive .DELTA.P created between the cathode reactant flow field of each cell and the coolant water circulation passages between each cell. In order to create the desired .DELTA.P, at least one of the reactant gas streams will be referenced to the coolant water loop so as to create a coolant loop pressure which is less than the referenced reactant gas stream pressure. Excess water is removed from the coolant water stream. The system can operate at ambient or at elevated pressures. Each cell in the power plant is individually cooled on demand, and the power plant does not require a separate cooling section or reactant stream humidifying devices.
摘要翻译： 简化的固体聚合物电解质燃料电池发电厂利用具有填充有循环冷却水的中心通道的多孔导电隔板。 冷却水通过热交换器，排除发电厂产生的热量。 出现在每个电池膜的阴极侧的水通过多孔氧化剂反应物流场板通过在每个电池的阴极反应物流场和每个电池之间的冷却水循环通道之间产生的正的DELTA P泵送到水循环通道中。 为了产生所需的DELTA P，反应物气流中的至少一个将以冷却水回路为参考，以产生小于参考反应物气流压力的冷却剂回路压力。 从冷却水流中除去过量的水。 该系统可以在环境温度或高压下工作。 电厂中的每个电池都需要单独冷却，发电厂不需要单独的冷却段或反应物流加湿装置。
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公开(公告)号：US4781241A
公开(公告)日：1988-11-01
申请号：US90305
申请日：1987-08-27
申请人： Robert Misage , Glenn W. Scheffler , Herbert J. Setzer , Paul R. Margiott , Edmund K. Parenti, Jr.
发明人： Robert Misage , Glenn W. Scheffler , Herbert J. Setzer , Paul R. Margiott , Edmund K. Parenti, Jr.
CPC分类号： F28D7/0083 , F22B33/18 , F28D7/0066 , F28D7/08 , F28D7/085 , H01M8/04029 , H01M8/0612
摘要： A heat exchanger uses the heat from processed fuel gas from a reformer for a fuel cell to superheat steam, to preheat raw fuel prior to entering the reformer and to heat a water-steam coolant mixture from the fuel cells. The processed fuel gas temperature is thus lowered to a level useful in the fuel cell reaction. The four temperature adjustments are accomplished in a single heat exchanger with only three heat transfer cores. The heat exchanger is preheated by circulating coolant and purge steam from the power section during startup of the latter.
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公开(公告)号：US06368737B1
公开(公告)日：2002-04-09
申请号：US09615231
申请日：2000-07-13
IPC分类号： H01M804
CPC分类号： H01M8/04074 , F28D2021/0019 , H01M8/04089 , H01M8/04156 , H01M8/04186
摘要： A fuel cell power plant having a fuel cell assembly includes an anode provided with a fuel stream, a cathode provided with an oxidant stream, an ion exchange membrane oriented between said anode and said cathode, and a coolant loop circulating a coolant stream in fluid communication with the fuel cell assembly. An oxidant source is utilized for supplying the fuel cell assembly with the oxidant stream at a predetermined pressure, while a coolant regulator oriented along the coolant loop lowers the coolant stream to a subambient pressure prior to the coolant stream coming into fluid communication with the fuel cell assembly.
摘要翻译： 具有燃料电池组件的燃料电池发电厂包括设置有燃料流的阳极，设置有氧化剂流的阴极，在所述阳极和所述阴极之间定向的离子交换膜，以及将流体连通的冷却剂流循环的冷却剂回路 与燃料电池组件。 氧化剂源用于以预定压力向燃料电池组件供应氧化剂流，同时沿冷却剂回路定向的冷却剂调节器在冷却剂流与燃料电池流体连通之前将冷却剂流降低到低于环境压力 部件。
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6.发明授权System and method for providing optimum cell operating temperatures and steam production in a fuel cell power plant 失效在燃料电池发电厂中提供最佳电池工作温度和蒸汽产生的系统和方法
公开(公告)号：US5565279A
公开(公告)日：1996-10-15
申请号：US579280
申请日：1995-12-27
CPC分类号： H01M8/04074 , H01M8/04029
摘要： The cell stack assembly of a fuel cell power plant is provided with a cooling system which provides optimum cell operating temperatures across each cell in the stack and also produces an optimum amount of steam. The cooling system includes at least one bypass through which a fraction of the coolant is fed from the coolant inlet side of the stack to the coolant outlet side of the stack. The bypass ensures that a fraction of the coolant is not heated to its target operating temperatures as it passes through the stack. This results in a more uniform cell operating temperature profile from the coolant inlet to the coolant outlet side of each cell; and also results in a lessening of excess steam production in the power plant.
摘要翻译： 燃料电池发电厂的电池堆组件设置有冷却系统，其提供叠层中每个电池的最佳电池工作温度，并且还产生最佳量的蒸汽。 冷却系统包括至少一个旁路，通过该旁路，一部分冷却剂从堆的冷却剂入口侧进料到堆的冷却剂出口侧。 旁路确保了一小部分冷却剂在通过堆叠时不会被加热到其目标工作温度。 这导致从每个电池的冷却剂入口到冷却剂出口侧的电池工作温度曲线更均匀; 并且还导致发电厂过剩蒸汽生产的减少。
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公开(公告)号：US07799476B2
公开(公告)日：2010-09-21
申请号：US10558982
申请日：2004-02-25
申请人： Paul A. Grubb , Paul R. Margiott , Sean E. Haggerty , Peter A. Golovchenko , Glenn W. Scheffler
发明人： Paul A. Grubb , Paul R. Margiott , Sean E. Haggerty , Peter A. Golovchenko , Glenn W. Scheffler
IPC分类号： H01M8/04
CPC分类号： H01M8/04604 , H01M8/04089 , H01M8/04559 , H01M8/04589 , H01M8/04753 , H01M8/0488 , H01M8/04888 , H01M8/0491 , H01M8/0494 , H01M8/04955
摘要： A method for operating a fuel cell power plant to supply power to an internal load and an external load, includes the steps of evaluating power needs of the internal and external loads to determine a fixed IDC value sufficient to supply the needs; providing auxiliary power to the internal load and output power to the external load so as to maintain operation of the fuel cell power plant at the fixed IDC value; and adjusting at least one of the auxiliary power to the internal load and output power to the external load so as to maintain operation of the fuel cell power plant at the fixed IDC value. Operation within a preselected voltage range is also provided.
摘要翻译： 一种用于操作燃料电池发电厂以向内部负载和外部负载供电的方法，包括评估内部和外部负载的功率需求以确定足以提供需求的固定IDC值的步骤; 向内部负载提供辅助电力并向外部负载输出功率，以将燃料电池发电厂的运行维持在固定的IDC值; 并且调节至内部负载的辅助功率中的至少一个并向外部负载输出功率，以将燃料电池发电厂的运行维持在固定的IDC值。 还提供了在预选电压范围内的操作。
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公开(公告)号：US07041403B2
公开(公告)日：2006-05-09
申请号：US10373619
申请日：2003-02-25
IPC分类号： H01M8/04
CPC分类号： H01M8/04604 , H01M8/04089 , H01M8/04559 , H01M8/04589 , H01M8/04753 , H01M8/0488 , H01M8/04888 , H01M8/0491 , H01M8/0494 , H01M8/04955
摘要： A method for operating a fuel cell power plant to supply power to an internal load and an external load, includes the steps of evaluating power needs of the internal and external loads to determine a fixed IDC value sufficient to supply the needs; providing auxiliary power to the internal load and output power to the external load so as to maintain operation of the fuel cell power plant at the fixed IDC value; and adjusting at least one of the auxiliary power to the internal load and output power to the external load so as to maintain operation of the fuel cell power plant at the fixed IDC value.
摘要翻译： 一种用于操作燃料电池发电厂以向内部负载和外部负载供电的方法，包括评估内部和外部负载的功率需求以确定足以提供需求的固定IDC值的步骤; 向内部负载提供辅助电力并向外部负载输出功率，以将燃料电池发电厂的运行维持在固定的IDC值; 并且调节至内部负载的辅助功率中的至少一个并向外部负载输出功率，以将燃料电池发电厂的运行维持在固定的IDC值。
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公开(公告)号：US06514635B2
公开(公告)日：2003-02-04
申请号：US09770042
申请日：2001-01-25
IPC分类号： H01M800
CPC分类号： H01M8/04447 , H01M8/0258 , H01M8/0267 , H01M8/04097 , H01M8/04223 , H01M8/04303 , H01M8/04455 , H01M8/04753 , H01M8/04798 , H01M8/0662 , H01M8/241 , H01M8/2457
摘要： A procedure for shutting down an operating fuel cell system that recirculates a portion of the anode exhaust in a recycle loop, includes disconnecting the primary load from the external circuit, stopping the flow of air to the cathode, and applying an auxiliary resistive load across the cells to reduce and/or limit cell voltage and reduce the cathode potential while fuel is still flowing to the anode and the anode exhaust is recirculating. The fuel flow is then stopped, but the anode exhaust continues to be circulated in the recycle loop to bring the hydrogen therein into contact with a catalyst in the presence of oxygen to convert the hydrogen to water, such as in a catalytic burner. The recirculating is continued until substantially all the hydrogen is removed. The cell may then be completely shut down. No inert gas purge is required as part of the shut-down process.
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公开(公告)号：US5837395A
公开(公告)日：1998-11-17
申请号：US576606
申请日：1995-12-21
CPC分类号： H01M8/0271 , H01M4/8626 , H01M2300/0008 , H01M8/0273
摘要： The present invention discloses a corrosion resistant fuel cell in which an ion impermeable protective layer is positioned over at least a portion of the noncatalyzed carbon based components. This layer prevents reactant ions or molecules form reaching localized high potential areas of these components and corroding the carbon material.
摘要翻译： 本发明公开了一种耐腐蚀燃料电池，其中离子不可渗透的保护层位于非催化的碳基组分的至少一部分上。 该层防止反应物离子或分子形成到这些组分的局部高电位区域并腐蚀碳材料。
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