锅炉烟气余热的二次回收利用

Secondary recycling waste heat of boiler flue

近年来,随着工业的快速发展,锅炉的应用领域不断拓宽。但在锅炉应用过程中普遍存在一个共同的问题,就是由于排烟损失导致的锅炉热损失较大。根据统计表明,目前无论是大锅炉还是小锅炉,其排烟平均温度都在180℃以上,而一些普遍工业锅炉排烟温度更高,这就导致锅炉热效率极低,只有60%左右,40%左右的热量都随着排烟而损耗,这给工业企业带来了较大的损耗。对锅炉烟气余热二次回收利用可有效降低排烟温度,减小能量损失,提高锅炉运行效率,减轻环境热传染。

In recent years, with the rapid development of industry, boiler applications continue to expand.But there is a common problem in the boiler application process ,that due to the boiler flue gas heat loss due to losses. According to the statistics, no matter how large or small boiler boiler exhaust its average temperatures are above 180 ~C, and some general industrial boiler flue gas at higher temperatures, which leads to low thermal efficiency, only about 60%, 40% with the heat around all smoke and loss, which gives industrial enterprises brought greater losses. Secondary boiler flue gas heat recycling can reduce exhaust gas temperature, reduce energy loss and improve boiler efficiency and reduce environmental hot pollution.