Fuel cell system with controlled stop process for a shut-down operation
    1.
    发明授权
    Fuel cell system with controlled stop process for a shut-down operation 有权
    燃料电池系统具有关闭操作的受控停止过程

    公开(公告)号:US08728674B2

    公开(公告)日:2014-05-20

    申请号:US12598880

    申请日:2009-03-11

    IPC分类号: H01M8/04

    摘要: A fuel cell system of the present invention includes: a fuel cell (1) having an electrolyte membrane (2), an anode (3) and a cathode (4) sandwiching the electrolyte membrane (2), a cathode gas passage (98) through which an oxidizing gas is supplied to and discharged from the cathode (4), and an anode gas passage (97) through which a fuel gas is supplied to and discharged from the anode (3); a fuel gas channel having an anode gas passage (97) and through which the fuel gas is supplied to and discharged from the anode (3); and an oxidizing gas channel having the cathode gas passage (98) and through which the oxidizing gas is supplied to and discharged from the cathode (4). When the fuel cell system stops generating electric power, the fuel gas channel and the oxidizing gas channel are closed, and a gas is supplied from a downstream side of the cathode gas passage (98) to an oxidizing gas filled space (112) which is practically isolated from outside by closing the oxidizing gas channel and includes the cathode gas passage (98).

    摘要翻译: 本发明的燃料电池系统包括:具有电解质膜(2),阳极(3)和夹在电解质膜(2)的阴极(4)的燃料电池(1),阴极气体通道(98) 向阴极(4)供给氧化气体并将其排出的阳极气体通路(97)通过该阳极气体通路(97)向阳极(3)供给燃料气体并从其排出; 燃料气体通道,其具有阳极气体通道(97),并且通过所述燃料气体通道向阳极(3)供应和排出燃料气体; 和具有阴极气体通道(98)的氧化气体通道,氧化气体通过该氧化气体通道向阴极(4)供给和排出。 当燃料电池系统停止发电时,关闭燃料气体通道和氧化气体通道,并且从阴极气体通道(98)的下游侧将气体供给到氧化气体填充空间(112) 通过关闭氧化气体通道实际上与外部隔离,并且包括阴极气体通道(98)。

    FUEL CELL SYSTEM
    2.
    发明申请
    FUEL CELL SYSTEM 有权
    燃油电池系统

    公开(公告)号:US20100136445A1

    公开(公告)日:2010-06-03

    申请号:US12598880

    申请日:2009-03-11

    IPC分类号: H01M2/00

    摘要: A fuel cell system of the present invention includes: a fuel cell (1) having an electrolyte membrane (2), an anode (3) and a cathode (4) sandwiching the electrolyte membrane (2), a cathode gas passage (98) through which an oxidizing gas is supplied to and discharged from the cathode (4), and an anode gas passage (97) through which a fuel gas is supplied to and discharged from the anode (3); a fuel gas channel having an anode gas passage (97) and through which the fuel gas is supplied to and discharged from the anode (3); and an oxidizing gas channel having the cathode gas passage (98) and through which the oxidizing gas is supplied to and discharged from the cathode (4). When the fuel cell system stops generating electric power, the fuel gas channel and the oxidizing gas channel are closed, and a gas is supplied from a downstream side of the cathode gas passage (98) to an oxidizing gas filled space (112) which is practically isolated from outside by closing the oxidizing gas channel and includes the cathode gas passage (98).

    摘要翻译: 本发明的燃料电池系统包括:具有电解质膜(2),阳极(3)和夹在电解质膜(2)的阴极(4)的燃料电池(1),阴极气体通道(98) 向阴极(4)供给氧化气体并将其排出的阳极气体通路(97)通过该阳极气体通路(97)向阳极(3)供给燃料气体并从其排出; 燃料气体通道,其具有阳极气体通道(97),并且通过所述燃料气体通道向阳极(3)供应和排出燃料气体; 和具有阴极气体通道(98)的氧化气体通道,氧化气体通过该氧化气体通道向阴极(4)供给和排出。 当燃料电池系统停止发电时,关闭燃料气体通道和氧化气体通道,并且从阴极气体通道(98)的下游侧将气体供给到氧化气体填充空间(112) 通过关闭氧化气体通道实际上与外部隔离,并且包括阴极气体通道(98)。

    FUEL CELL POWER GENERATION SYSTEM AND OPERATION STOP METHOD OF THE SAME
    3.
    发明申请
    FUEL CELL POWER GENERATION SYSTEM AND OPERATION STOP METHOD OF THE SAME 有权
    燃料电池发电系统及其运行停止方法

    公开(公告)号:US20120189931A1

    公开(公告)日:2012-07-26

    申请号:US13361482

    申请日:2012-01-30

    IPC分类号: H01M8/06 H01M8/04

    摘要: A fuel cell power generation system including a fuel cell, a fuel generator, an oxidizing gas supply device, an output controller, an open-close mechanism, and a controller. The controller is configured such that in a stop process, the controller controls the output controller to stop supplying the electric power to an external load; controls the oxidizing gas supply device to stop supplying an oxidizing gas and controls the open-close mechanism to close a passage upstream from an oxidizing gas channel; after the passage upstream from the oxidizing gas channel is closed, stops a raw material gas supply device and a water supply device when a predetermined period has elapsed, during which period a gas in the oxidizing gas channel is replaced by a fuel gas.

    摘要翻译: 一种燃料电池发电系统,包括燃料电池,燃料发生器,氧化气体供给装置,输出控制器,开闭机构和控制器。 控制器被配置为使得在停止处理中,控制器控制输出控制器停止向外部负载供电; 控制所述氧化气体供给装置停止供给氧化气体,并控制所述开闭机构关闭氧化剂气体流路上游的流路; 在氧化剂气体通道上游的通道关闭之后,当经过预定时间后停止原料气体供给装置和供水装置,在此期间氧化剂气体通道中的气体被燃料气体代替。

    Fuel cell power generation system and operation stop method of the same
    4.
    发明授权
    Fuel cell power generation system and operation stop method of the same 有权
    燃料电池发电系统和运行停止方法相同

    公开(公告)号:US08771892B2

    公开(公告)日:2014-07-08

    申请号:US13361482

    申请日:2012-01-30

    IPC分类号: H01M8/04

    摘要: A fuel cell power generation system including a fuel cell, a fuel generator, an oxidizing gas supply device, an output controller, an open-close mechanism, and a controller. The controller is configured such that in a stop process, the controller controls the output controller to stop supplying the electric power to an external load; controls the oxidizing gas supply device to stop supplying an oxidizing gas and controls the open-close mechanism to close a passage upstream from an oxidizing gas channel; after the passage upstream from the oxidizing gas channel is closed, stops a raw material gas supply device and a water supply device when a predetermined period has elapsed, during which period a gas in the oxidizing gas channel is replaced by a fuel gas.

    摘要翻译: 一种燃料电池发电系统,包括燃料电池,燃料发生器,氧化气体供给装置,输出控制器,开闭机构和控制器。 控制器被配置为使得在停止处理中,控制器控制输出控制器停止向外部负载供电; 控制所述氧化气体供给装置停止供给氧化气体,并控制所述开闭机构关闭氧化剂气体流路上游的流路; 在氧化剂气体通道上游的通道关闭之后,当经过预定时间后停止原料气体供给装置和供水装置,在此期间氧化剂气体通道中的气体被燃料气体代替。

    FUEL CELL POWER GENERATION SYSTEM
    6.
    发明申请
    FUEL CELL POWER GENERATION SYSTEM 审中-公开
    燃料电池发电系统

    公开(公告)号:US20110177414A1

    公开(公告)日:2011-07-21

    申请号:US13061394

    申请日:2009-08-28

    IPC分类号: H01M8/04

    摘要: There is provided a fuel cell power generation system that exhibits superior efficiency of power generation and durability.The fuel cell power generation system includes: a fuel cell 4 including a fuel electrode 2, an oxidant electrode 3, and an electrolyte 1 on which the fuel electrode 2 and the oxidant electrode 3 are formed; an output control unit 11 that controls an output of the fuel cell 4; and a determination unit 12 that determines, based on an integrated amount of impurities contained in an oxidant gas and supplied to the oxidant electrode 3, a time at which the fuel cell 4 is brought into an open circuit state. The output control unit 11 halts power generation of the fuel cell 4 for a predetermined period of time every time determined by the determination unit 12, thereby bringing the fuel cell 4 into the open circuit state.

    摘要翻译: 提供了具有优异的发电效率和耐久性的燃料电池发电系统。 燃料电池发电系统包括:燃料电池4,包括燃料电极2,氧化剂电极3和形成燃料电极2和氧化剂电极3的电解质1; 输出控制单元11,其控制燃料电池4的输出; 以及确定单元12,其基于包含在氧化剂气体中并供应到氧化剂电极3的杂质的积分量,确定燃料电池4处于开路状态的时间。 输出控制单元11在由确定单元12确定的时间内停止燃料电池4的发电一段预定时间,从而使燃料电池4进入开路状态。

    Fuel cell system with differential pressure control
    7.
    发明授权
    Fuel cell system with differential pressure control 有权
    具有差压控制的燃料电池系统

    公开(公告)号:US07691510B2

    公开(公告)日:2010-04-06

    申请号:US10564469

    申请日:2005-01-19

    IPC分类号: H01M8/04 H01M2/00 H01M8/00

    CPC分类号: H01M8/04231 H01M8/04104

    摘要: A fuel cell system includes a fuel cell that is subjected to a purge operation of supplying an inert gas to an anode and/or cathode upon shut-down of the fuel cell. The differential pressure ΔP is defined as ΔP=Pa−Pc where Pa is the pressure in an inlet-side flow path leading to the anode and Pc is the pressure in an inlet-side flow path leading to the cathode. The differential pressure during the purge operation is controlled such that the differential pressure during operation ΔPo and the differential pressure during the purge operation ΔPp satisfy the relation: 0

    摘要翻译: 燃料电池系统包括燃料电池,该燃料电池在关闭燃料电池时进行向阳极和/或阴极供应惰性气体的净化操作。 压差Dgr; P定义为&Dgr; P = Pa-Pc其中Pa是通向阳极的入口侧流动路径中的压力,Pc是通向阴极的入口侧流动路径中的压力。 控制清洗操作期间的压差,使得在操作期间的差压和Dgr。P P和清洗操作期间的差压达到以下关系:0 <&Dgr; Po×&Dgr; Pp。 这使得可以减小施加在固体电解质膜上的应力并且提高燃料电池的长期可靠性。

    Fuel Cell System
    8.
    发明申请
    Fuel Cell System 有权
    燃料电池系统

    公开(公告)号:US20070292728A1

    公开(公告)日:2007-12-20

    申请号:US10564469

    申请日:2005-01-19

    IPC分类号: H01M8/04 H01M8/10

    CPC分类号: H01M8/04231 H01M8/04104

    摘要: A fuel cell system includes a fuel cell that is subjected to a purge operation of supplying an inert gas to an anode and/or cathode upon shut-down of the fuel cell. The differential pressure ΔP is defined as ΔP=Pa−Pc where Pa is the pressure in an inlet-side flow path leading to the anode and Pc is the pressure in an inlet-side flow path leading to the cathode. The differential pressure during the purge operation is controlled such that the differential pressure during operation ΔPo and the differential pressure during the purge operation ΔPp satisfy the relation: 0

    摘要翻译: 燃料电池系统包括燃料电池,该燃料电池在关闭燃料电池时进行向阳极和/或阴极供应惰性气体的净化操作。 差压DeltaP被定义为DeltaP = Pa-Pc,其中Pa是通向阳极的入口侧流动路径中的压力,Pc是通向阴极的入口侧流动路径中的压力。 控制清洗操作期间的差压使得操作期间的差压ΔPo和净化操作期间的压差ΔPp满足关系:0 <ΔPoxDeltaPp。 这使得可以减小施加在固体电解质膜上的应力并且提高燃料电池的长期可靠性。

    Fuel cell system, method of starting fuel cell system
    10.
    发明授权
    Fuel cell system, method of starting fuel cell system 有权
    燃料电池系统,燃料电池系统启动方法

    公开(公告)号:US08039154B2

    公开(公告)日:2011-10-18

    申请号:US10561386

    申请日:2004-08-24

    IPC分类号: H01M8/04

    摘要: Problems of acceleration of drying of electrolyte membrane and local reaction, etc. can be properly coped with to attain the stabilization of performance of fuel cell.There are provided a fuel cell 121 which generates electric power from a fuel gas and an oxidizing agent gas, a fuel gas feed pipe 161 and a first switch valve 129 as fuel gas supplying unit which supplies the said fuel gas into the said fuel cell on the anode side thereof, an oxidizing gas supplying pipe 162 and a second cut-off valve 131 as oxidizing agent gas supplying unit which supplies the said oxidizing agent into the said fuel cell on the cathode side thereof, a raw material gas supplying pipe 151 and a third switch valve 143 as raw material gas supplying unit which supplies raw material of the said fuel gas into the fuel cell and a control portion 127 which controls the supply of the said fuel gas, the supply of the said oxidizing agent and the supply of the said raw material and the control portion 127 controls during the starting of electricity generation of the fuel cell 121 such that the said raw material gas supplying unit purges the fuel cell 121 at least on the cathode side thereof with the said raw material gas before the oxidizing agent gas supplying unit and the fuel gas supplying unit supply the fuel gas and the said oxidizing agent gas into the fuel cell 121, respectively.

    摘要翻译: 可以适当应对电解质膜干燥加速和局部反应等问题,以达到燃料电池性能的稳定。 设置有从燃料气体和氧化剂气体产生电力的燃料电池121,作为燃料气体供给单元的燃料气体供给管161和第一切换阀129,将燃料气体供给到所述燃料电池中 其阳极侧,氧化剂气体供给管162和作为氧化剂气体供给单元的第二截止阀131,其将所述氧化剂供给到阴极侧的所述燃料电池中,原料气体供给管151和 作为将燃料气体的原料供给燃料电池的原料气体供给部的第三切换阀143以及控制部127,控制部127控制所述燃料气体的供给,所述氧化剂的供给和供给 所述原料和控制部127在燃料电池121的发电开始期间进行控制,使得所述原料气体供给单元至少在阴极上清除燃料电池121 在氧化剂气体供给单元和燃料气体供给单元之间分别将燃料气体和所述氧化剂气体供应到燃料电池121中的同时与所述原料气体一起。