排烟热损失是锅炉各项热损失中最大的一项,对锅炉效率影响最大,约为4%～8%。排烟温度升高将增大排烟热损失。(一般情况下,排烟温度每升高15~20℃,排烟热损失增加1%左右)。所以降低排烟损失对提高锅炉效率及全厂的经济运行有着非常重要的意义。 Exhaust heat loss is the largest one of the boiler heat losses, the greatest impact on the boiler efficiency, about 4% to 8%. Exhaust temperature increases exhaust heat loss will increase. (Under normal circumstances, the exhaust gas temperature increased 15 ~ 20 ℃, exhaust heat loss increased by about 1%). So to reduce the loss of exhaust emissions to improve boiler efficiency and the economic operation of the whole plant has a very important significance.