| 摘要 |
<p>The purpose of the present invention is to limit pressure fluctuation when the number of boilers burning fuel is increased or decreased. A boiler system (1) is provided with: a boiler group (2) provided with a plurality of boilers (20) capable of burning fuel while a load factor is being continuously changed; and a controller (4) for controlling a fuel-burning state of the boiler group (2) in accordance with a required load. In cases when the number of the boilers (20) made to burn fuel is increased, the controller (4) causes the boilers (20) which are to be made to start burning fuel newly to burn fuel in a minimum fuel-burning state (S1), and in cases when the number of the boilers (20) made to burn fuel is reduced, the controller (4) reduces, to the minimum fuel-burning state (S1), the boilers (20) which are to be made to stop burning fuel, and subsequently stops said boilers (20). As a result, the fluctuation range of the load factor of the boilers (20) currently burning fuel is limited to an amount corresponding to the minimum fuel-burning state (S1).</p> |
