| 摘要 |
PROBLEM TO BE SOLVED: To provide a boiler system including boiler group having a plurality of boilers capable of burning at a plurality of stepwise burning positions in which a pressure of steam generated at a plurality of boilers and collected is hard to be increased.SOLUTION: A boiler system 1 including a boiler group 2 having a plurality of boilers 20 capable of burning at a plurality of stepwise burning positions and a control part 4 for controlling burning state of the boiler group 2. Each of the boilers 20 has a water level measuring part 28. The control part 4 determines whether or not a water level in a boiler 20 showing the highest level of priority in the boilers 20 kept at burning stopped condition reaches a prescribed threshold. In the case that the control part determines that the water level in the boiler 20 of the highest priority does not reach the prescribed threshold, the control part starts heating-up operation of the boiler 20 of the highest water level in the group of boilers 20 kept under burning stopped condition. |
