| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance the followability to a load fluctuation higher than in past in a multi-drum boiler where a plurality of boiler units, which adjust the amounts of combustion in stages, are installed. <P>SOLUTION: In the multi-drum boiler, where a plurality of boiler units, each of which adjusts the amount of combustion in stages, are installed and the amount of combustion of each boiler units is controlled to keep the pressure value of steam, supplied by the boiler units, within a range of pressure adjustment, an amount of low combustion, set in stages by the boiler unit, is set in advance to narrow the difference between an amount of combustion in standby and the amount of low combustion less than that between the amounts of other combustion, and in case of changing the amount of combustion in response to the fluctuation of the steam pressure value, the change between the amounts of combustion other than the change of the amounts of combustion between combustion in standby and low combustion where the difference in the amounts of combustion is set small, is performed in priority to the change of the amounts of combustion between combustion in standby and low combustion. <P>COPYRIGHT: (C)2013,JPO&INPIT |
