• Energy conservation and emission reduction are the two main themes of coal-fired power plants. To optimize combustion, it is necessary and important to add pulverized fuel (PF) flowmeters and flow control and balancing devices for boiler combustion, both to ensure combustion efficiency and to meet the requirements of low NOx emission.

For boiler combustion, controlling the CO level of flue gas can reduce incomplete combustion and the heat loss to the exhaust gas. This is due to the fact that the CO level of flue gas reflect the burning condition inside the furnace. When the furnace burning condition is not optimal, there will be coking, high temperature corrosion, or flue gas temperature deviation, resulting in boiler safety problems. It has therefore become important and necessary to detect and control CO level in the flue.