| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a raw fuel control device 40 and a raw fuel control method for a reformer capable of appropriately controlling a raw fuel flow rate control valve 5 even below 30% of the measuring upper limit or less than the measuring lower limit of a raw fuel flowmeter 6, and capable of appropriately continuing an operation of the reformer 1 even in a comparatively unstable range in measurment of the raw fuel flowmeter 6. <P>SOLUTION: On the basis of a raw fuel flow rate measurement value PV1 measured by the raw fuel flowmeter 6 and a raw fuel flow rate set value SV1, and a reformer temperature measurement value PV2 measured with a thermometer 9 provided in the reformer 1 and a reformer temperature set value SV2, the opening of the raw fuel flow rate control valve 5 is controlled to increase or decrease according to the temperature of the reformer 1 prior to the indicated value of the raw fuel flowmeter 6. According to the indicated value PV5 of a pressure gauge 42 disposed on the downstream side of the reformer 1, a function for controlling the opening of the raw fuel flow rate control valve 5 to increase or decrease can be added. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
