摘要:
A fuel cell system of the present invention includes: a reformer (1) configured to generate a hydrogen-containing fuel gas from a material gas and steam; a fuel cell (101) configured to generate electric power by using a fuel gas supplied from the reformer (1); a water tank (3) configured to store water; a water utilizing device configured to utilize the water supplied from the water tank (3); a first water supply unit (5) disposed on a water passage (30) extending from the water tank (3) to the water utilizing device and configured to supply the water in the water tank (3) to the water utilizing device; and a purifier (4) disposed on the water passage (30) and configured to purify the water flowing through the water passage (30), and the purifier (4) is provided such that when a water level of the water tank (3) is a full water level, the purifier (4) is filled with the water by the weight of the water.
摘要:
A fuel cell system of the present invention includes: a reformer (1) configured to generate a hydrogen-containing fuel gas from a material gas and steam; a fuel cell (101) configured to generate electric power by using a fuel gas supplied from the reformer (1); a water tank (3) configured to store water; a water utilizing device configured to utilize the water supplied from the water tank (3); a first water supply unit (5) disposed on a water passage (30) extending from the water tank (3) to the water utilizing device and configured to supply the water in the water tank (3) to the water utilizing device; and a purifier (4) disposed on the water passage (30) and configured to purify the water flowing through the water passage (30), and the purifier (4) is provided such that when a water level of the water tank (3) is a full water level, the purifier (4) is filled with the water by the weight of the water.
摘要:
A fuel cell system of the present invention includes: a fuel cell (1); a water circulation passage through which water circulates, the water being necessary for an operation of a fuel cell system (100); a separation mechanism configured to divide the water circulation passage into a plurality of blocks when removing the water and to cut the flow of the water among the blocks; water discharge passages respectively connected to the blocks; and water discharge valves respectively provided on the water discharge passages.
摘要:
The possibility of carbon deposition from a raw material gas is made lower than before in a pressure compensating operation carried out after stopping the stop process of a hydrogen generator and a fuel cell system including the hydrogen generator.The hydrogen generator includes: a raw material supply unit (102, 103) configured to function to block supply of a raw material; a steam supply unit (104, 105) configured to function to block supply of steam; a reformer 108 including a reforming catalyst 109 and configured to generate a hydrogen-containing gas by using the raw material supplied from the raw material supply unit and the steam supplied from the steam supply unit; a closing unit 116 configured to block at least a gas passage provided downstream of the reformer; and a controller 140 configured to execute a pressure compensating operation in which: during stop of the hydrogen generator, with hydrogen contained in the reformer, the supply of the raw material from the raw material supply unit and the supply of the steam from the steam supply unit are blocked, and the closing unit is closed; and to compensate a pressure decrease in the reformer due to a temperature decrease in the reformer after the closing of the closing unit, with the hydrogen contained in the reformer, the steam is supplied from the steam supply unit to the reformer.
摘要:
The possibility of carbon deposition from a raw material gas is made lower than before in a pressure compensating operation carried out after stopping the stop process of a hydrogen generator and a fuel cell system including the hydrogen generator.The hydrogen generator includes: a raw material supply unit (102, 103) configured to function to block supply of a raw material; a steam supply unit (104, 105) configured to function to block supply of steam; a reformer 108 including a reforming catalyst 109 and configured to generate a hydrogen-containing gas by using the raw material supplied from the raw material supply unit and the steam supplied from the steam supply unit; a closing unit 116 configured to block at least a gas passage provided downstream of the reformer; and a controller 140 configured to execute a pressure compensating operation in which: during stop of the hydrogen generator, with hydrogen contained in the reformer, the supply of the raw material from the raw material supply unit and the supply of the steam from the steam supply unit are blocked, and the closing unit is closed; and to compensate a pressure decrease in the reformer due to a temperature decrease in the reformer after the closing of the closing unit, with the hydrogen contained in the reformer, the steam is supplied from the steam supply unit to the reformer.
摘要:
Included are: a power generation unit configured to generate electric power by consuming a raw material gas that has passed through a gas meter, the gas meter being configured to, if a state where continuously stopping a flow of the raw material gas for a reset period or longer is not performed has continued for a first upper limit period or longer, exert at least one of a function of outputting an abnormality indication signal and a function of blocking the flow of the raw material gas; a raw material gas supply device configured to supply the raw material gas to the power generation unit; and a controller. The controller is configured to: perform a raw material gas supply operation of supplying the raw material gas from the raw material gas supply device to the power generation unit in a case of performing normal stopping of a power generation operation; and stop the power generation operation, and stop the raw material gas supply operation until at least the reset period elapses, in a case where gas supply abnormality in which said state continues for a second upper limit period or longer has occurred, the second upper limit period being shorter than the first upper limit period.
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:
The deterioration of the catalyst can occur during prolonged storage, occasionally causing the deterioration of the durability of the fuel cell. There are provided a stack 38 which generates electric power from a fuel gas and an oxidizing agent, a fuel gas pipe 37 and an on-off valve 49 as fuel gas supplying unit of supplying the fuel gas into the fuel cell on the anode side thereof, an oxidizing agent supplying unit an oxidizing agent gas pipe 40a and an on-off valve 57 as oxidizing agent gas supplying unit of supplying the oxidizing agent into the fuel cell on the cathode side thereof, a raw material gas pipe 33, a bypass pipe 55 and dispensing valves 56, 60 as raw material gas supplying unit of supplying the raw material of the fuel gas into the fuel cell and a control portion 44 of controlling the supply of the fuel gas, the supply of the oxidizing agent and the supply of the raw material, wherein after the switching-off of the output of electric power of the fuel cell, the fuel gas supplying unit suspends the supply of the fuel gas into the fuel cell on the anode side thereof, the oxidizing agent gas supplying unit suspends the supply of the oxidizing agent into the fuel cell on the cathode side thereof and the raw material gas supplying unit supplies the raw material into the fuel cell from the inlet side of the cathode to purge the fuel cell on the cathode side thereof.
摘要:
A fuel cell system includes a fuel cell; a fuel gas supplying unit supplying the fuel gas into the fuel cell on the anode side thereof; an oxidizing agent gas supplying unit supplying the oxidizing agent gas into the fuel cell on the cathode side thereof; a raw material gas supplying unit supplying the raw material gas into the fuel cell; and a controlling unit controlling the supply of the fuel gas, the oxidizing agent gas and the raw material gas. After switching the output of electric power or the fuel cell off, the fuel gas supplying unit suspends the supply of the fuel gas, the oxidizing agent gas supplying unit suspends the supply of the oxidizing agent gas and the raw material gas supplying unit supplies the raw material gas into the fuel cell to purge the fuel cell on the cathode side.
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.