| 摘要 |
PROBLEM TO BE SOLVED: To provide a boiler system capable of regulating a flow volume of combustion gas with high responsiveness to control an air ratio to be constant even if a variation in the mass flow of the combustion gas, a variation in a heating value, or the like occurs.SOLUTION: A boiler system 1 comprises: a storage unit 72 storing a flow volume of combustion air and a target flow volume of combustion gas while making the flow volume of the combustion air correspond to the target flow volume; a target flow volume setting unit 91 setting the target flow volume on the basis of the flow volume of the combustion air detected by an air differential pressure sensor 33; and a degree-of-opening control unit 95 controlling a degree of opening of a flow regulating valve 56 so that a flow volume of the fuel gas flowing downstream of the flow regulating valve 56 is equal to the target flow volume, on the basis of the flow volume of the fuel gas detected by a mass flow mater 52 disposed upstream of the flow regulating valve 56.SELECTED DRAWING: Figure 1 |
