BOILER SYSTEM

• Main Authors: KUNO KENJI, ITO KO, NISHIMURA KEIJI
• Format: Patent
• Language: English; Japanese
• Published: 04.02.2016
• Subjects: BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; HEATING; LIGHTING; MECHANICAL ENGINEERING; METHODS OF STEAM GENERATION; REGULATING OR CONTROLLING COMBUSTION; STEAM BOILERS; STEAM GENERATION; WEAPONS

PROBLEM TO BE SOLVED: To provide a boiler system capable of effectively suppressing the influence of a variation in a mass flow generated by a temperature variation on an air ratio, and stably and efficiently exerting a combustion control.SOLUTION: A boiler system 1 comprises: a storage unit 72 storing a flow volume of combustion air and a value of a degree of opening of a flow regulating valve 56 while making the flow volume correspond to the value of the degree of opening; a degree-of-opening setting unit 91 setting a value of a degree of opening on the basis of the flow volume of the combustion air detected by an air differential pressure sensor 33; a temperature correction unit 92 correcting the value of the degree of opening on the basis of a temperature detected by a fuel gas temperature sensor 57; and a degree-of-opening control unit 95 controlling the degree of opening of the flow regulating valve 56 on the basis of the corrected value of the degree of opening corrected by the temperature correction unit 92.SELECTED DRAWING: Figure 1 【課題】温度変動によって生じる質量流量の変動が空気比に与える影響を効果的に抑制し、燃焼制御を安定的かつ効率的に行うことができるボイラ装置を提供すること。【解決手段】ボイラ装置１は、燃焼用空気の流量と流量調整弁５６の開度値とを対応づけて記憶する記憶部７２と、エア差圧センサ３３によって検知された燃焼用空気の流量に基づいて開度値を設定する開度設定部９１と、燃料ガスの質量流量が所定の値になるように、燃料ガス温度センサ５７によって検知された温度に基づいて開度値を補正する温度補正部９２と、温度補正部９２によって補正された補正開度値に基づいて流量調整弁５６の開度を制御する開度制御部９５と、を備える。【選択図】図１