Abstract: Abstract:In the 1000MW boiler of Huadian International Zouxian Power Plant, due to the restriction of the air and flue system structure design and the own measuring conditions of the dynamic pressure measuring device, it is difficult to measure the spout air speed of the boiler combustion system correctly. So the spout air speed of the primary air of the boiler could not be monitored correctly, and the pulverized coal combustion condition in the furnace could not be monitored effectively. The online air and pulverized coal monitoring system of the 1000MW boiler was reformed. The MVC series power plant boiler online air and pulverized coal monitoring system manufactured by Apexview Technology (Beijing) Corporation Limited. was installed in the primary air system of the boiler, and the difficulty in measuring of the spout air speed of primary air of the boiler correctly was overcome thoroughly.

Key words: Keywords:online air and pulverized coal monitoring system, primary air speed, pulverized coal concentration, monitoring, reformation