Aph ignition originated in the middle-tier lower and cold-side heat transfer elements. From the local minimum area on fire to large area Burns takes a long time, typically 1~2H, and sometimes even longer. In order to cut losses, determine whether the fire as soon as possible. Usually start from the endpoint temperature of air preheater, sometimes through the air outlet of air preheater in observation of the observation hole on fire, found the fire should be immediately shut down the port hole, fire flue gas leak when serious or significant radiation, smokestacks belching black smoke.
When air preheater on fire, immediately MFT manually, stop the fan running, isolating air preheater, close the air heater inlet and outlet baffles. Keep rotating air preheater, fire hose and nozzle cleaning hoses fire immediately and open the flue outlet on. Experience has shown that using foams, chemicals or steam to smothered the flame effect is not good, key to ensure the fire water. Burning air preheater must not open into the hole to prevent air from entering the combustion. The worst, such as fire-fighting water and cleaning water pipe failures and no water input, you can open the manhole, fire with fire water in power plant. Note the fire must be completely and carefully checked and never leave future trouble.