摘要:
A fuel cell system (1) includes: a fuel cell (51); an evaporating unit (32) producing water vapor from reforming water; a reforming unit (33) producing reforming gas from a reforming raw material and the water vapor and supplying the reforming gas to the fuel cell; a combustion unit (35) burning combustible gas from a combustion electrode of the fuel cell and heating the evaporating unit and the reforming unit; a heating device (35c, 35d) igniting the combustible gas by heating the combustible gas and firing up the combustion unit; a first temperature sensor (37) in the combustion unit; a second temperature sensor (38) in the inside of at least one of the evaporating unit and the reforming unit ; and a control device (15) controlling the fuel cell. The claimed fuel cell system is able to determine reliably during start-up wether the combustion unit (35) has reached a state a combustion state where a flame is continuous.
摘要:
To provide a fuel cell device capable of extending the years of service life of a reformer by suppressing thermal runaways. The present invention is a solid oxide fuel cell device (1), including a fuel cell module (2) having multiple fuel cell units (16); a reformer (20b) disposed above the fuel cell units, for producing hydrogen by a partial oxidation reforming reaction and a steam reforming reaction; a vaporizing chamber (20a) disposed adjacent to the reformer; a combustion chamber (18) for heating the vaporization chamber; a water supply device; a supply device for oxidant gas for electrical generation; and a controller (110) for raising the fuel cell unit to a temperature at which electrical generation is possible; wherein fuel electrodes in each individual fuel cell unit are constituted to act as catalysts for a shift reaction, and the controller executes only the ATR step and SR step in the reformer.
摘要:
A fuel cell system is provided with a fuel cell, a first combustor, a first heating gas return channel and a gas supplier. The fuel cell includes a solid electrolyte cell with an anode and a cathode. The fuel cell generates power by reacting a hydrogen-containing gas and an oxygen-containing gas. The first combustor selectively supplies a heating gas to the cathode of the fuel cell. The first heating gas return channel mixes at least some exhaust gas discharged from the cathode with the heating gas of the first combustor such that a mixed heating gas of the exhaust gas and the heating gas is supplied to the cathode. The gas supplier connected to the first heating gas return channel for supplying the exhaust gas from the cathode to mix with the heating gas of the first combustor.
摘要:
The present invention provides a gas generator that may be used for startup and shutdown of a fuel cell. In one non-limiting embodiment, the gas generator may include a nitrogen generator structured to receive air, extract oxygen (O 2 ) from the air and discharge the balance in the form of a nitrogen-rich gas; a merging chamber structured to receive a hydrocarbon fuel and the nitrogen-rich gas and to discharge a feed mixture containing both the hydrocarbon fuel and the nitrogen-rich gas; and a catalytic reactor structured to receive the feed mixture and to catalytically convert the feed mixture into a reducing gas.
摘要:
A fuel cell system includes a compressor for supplying the cathode gas to the fuel cell, an anode gas discharge system for discharging anode off-gas discharged from the fuel cell into a cathode gas flow passage, a pulsating operation control unit for causing a pressure of the anode gas to pulsate based on an operating state of the fuel cell, a purge control unit for purging the anode off-gas into the cathode gas flow passage based on an impurity concentration of an anode of the fuel cell and a pressure of the anode, and a compressor control unit for controlling the compressor based on a purge flow rate controlled by the purge control unit, and the purge control unit for setting the pressure of the anode to a predetermined value determined according to a pulsating state of the anode gas.
摘要:
To provide a solid oxide fuel cell device capable of smooth transition from a startup state to an electrical generating state. The present invention is a solid oxide fuel cell device (1) for generating electricity, having a fuel cell module (2); a reformer (20), a fuel supply device (38); a water supply device (28), a generating oxidant gas supply device (45), and a controller (110) for controlling the fuel supply device and water supply device at the time of startup when the fuel cell module solid oxide fuel cell unit is raised to a temperature at which electrical generation is possible; whereby the controller controls the fuel supply device during the SR operation such that electrical generation is started after reducing the fuel supply flow rate prior to starting electrical generation.
摘要:
A fuel cell system includes: a fuel cell (34) generating electricity using a fuel and an oxidant gas; a reforming unit (33) generating the fuel from a raw reforming material from a raw reforming material supply source and reforming water, and supplying the fuel to the fuel cell; a desulfurizer (11a6) removing a sulfur component contained in the raw reforming material and supplying the desulfurized raw reforming material to the reforming unit; a raw reforming material supply pipe (11a) causing the raw reforming material to be fed to the desulfurizer; a raw material pump (11a5) provided in the raw reforming material supply pipe and supplying the raw reforming material to the desulfurizer; a recycling fuel pipe (39) causing a portion of the fuel to return to an introduction side of the raw material pump; and a pressure control valve (11a4) provided on the raw reforming material supply pipe.
摘要:
A fuel cell system, includes: a fuel cell (34) generating electricity using a fuel and an oxidant gas; a reforming unit (33) generating the fuel from a reforming raw material and reforming water, and supplying the fuel to the fuel cell; a combustion unit (36) to which a combustible gas is introduced from the fuel cell to combust the combustible gas with the oxidant gas, and from which a combustion gas is output; a raw material supply device (11a6) supplying the reforming raw material; an oxidant gas supply device (11c1) supplying the oxidant gas; a flow rate detecting sensor (11 a3) detecting a flow rate of the reforming raw material; a first temperature sensor (33a) detecting a temperature of the reforming unit; a second temperature sensor (33b) detecting a temperature of the combustion unit; and a control device (15) determining that a gas component of the reforming raw material varies.
摘要:
A fuel cell system comprises a housing (10a) that stores the fuel cell (34), a ventilation fan (42) which performs ventilation of the inside of the housing, a flow rate detection device (60) that detects a flow rate (Q) of the fluid due to the ventilation, and the control device 15. The control device includes a first abnormality checking portion (S112-S116) that, after the control device starts control for driving the ventilation fan, reduces a driving amount (D) of the ventilation fan from a first driving amount (Dv) to a second driving amount (Dc) and checks abnormality of the flow rate detection device by checking whether or not an output signal from the flow rate detection device changes from the On signal to the Off signal.
摘要:
In a fuel cell system of the present invention, a reformed gas generated in a reformer (R1) being activated is supplied to a fuel cell stack (F1), and an off-gas discharged from the fuel cell stack (F1) is supplied to a heat supply device (B2) provided for a reformer (R2) being deactivated. By activating at least one reformer (Rn), all of a plurality of reformers (Rn) can be warmed-up. Therefore, energy consumption in a standby state can be suppressed, and the fuel cell system can be started-up quickly in emergencies. The reformed gas may be supplied to the heat supply device (B2) instead of the off-gas.