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引言具备可靠的火焰监测器是大型电站煤粉锅炉安全运行的最重要条件之一。一旦锅炉突然熄火而燃料仍被不断地送入炉膛,就将产生爆炸的危险并导致人员和设备受到严重损伤。要消除这种危险趋向,就得装备遥控火焰监测系统。它能对每个火焰存在和熄灭提供连续的指示,且当火焰出现不正常的波动时及时发出报警信号。近些年来性能良好的自动控制系统的出现以及要求减少运行人员的趋势,促使对火焰监测系统的需要与日
Introduction Having a reliable flame monitor is one of the most important conditions for the safe operation of pulverized coal boilers in large power plants. Once the boiler is suddenly extinguished and fuel is still continuously fed into the furnace, there is a danger of explosion and serious damage to personnel and equipment. To eliminate this dangerous trend, you have to equip the remote flame monitoring system. It provides continuous indication of the presence and absence of each flame, and gives an immediate alarm when there is abnormal fluctuations in the flame. The emergence of well-functioning automatic control systems in recent years and the trend toward reduced operating personnel have prompted the need for a flame monitoring system to meet