| 摘要 |
PROBLEM TO BE SOLVED: To provide a boiler capable of controlling a flow rate of water supplied from a water supply pump to be constant irrespective of variation of a steam pressure.SOLUTION: A boiler 1 includes: a can body 20 having a plurality of water pipes 22; a water supply pump 4 for supplying water to the can body 20; a pressure measurement unit 30 for measuring an internal steam pressure of the can body 20; and a control unit 100 for acquiring a frequency of an inverter 41 of the water supply pump 4 so that the flow rate of water supplied to the can body 20 from the water supply pump 4 becomes a constant flow rate based on the steam pressure measured by the pressure measurement unit 30, and for controlling rotational frequency of the water supply pump 4 at the frequency of the inverter 41. |
