从燃料燃烧的能量转换和守恒原理出发 ,对锅炉燃烧自动控制和锅炉热效率在线监测进行研究。用火焰参数代表燃料发热量信号和在线热效率信号 ,在不需要对风量和燃料精确测量的情况下 ,成功投入了燃烧自动控制系统 ,将锅炉热效率控制在最佳值 ,实现对锅炉热效率的实时在线监测。 Based on the energy conversion and conservation principle of fuel combustion, the automatic control of boiler combustion and on-line monitoring of boiler thermal efficiency are studied. Flame parameters represent the fuel heat signal and the online thermal efficiency signal. Without the need for precise measurement of air volume and fuel, the automatic combustion control system has been successfully put into operation to control the thermal efficiency of the boiler at the optimal value and realize real-time on-line thermal efficiency of the boiler monitor.