提高锅壳燃气锅炉热效率的途径

摘要

Shell boiler is widely adopted recently due to its tight seal performance,accompanied with strict environment pollutant emission standard.Gas fueled boiler has a higher exit flue gas temper-ature(higher than 180 ℃),which lost a lot of energy.This paper,take WNS gas fueled boiler for instance,presents a technique of pre-heater and water vapor condenser to recover this thermal en-ergy.%随着国家对环境保护要求的重视，锅壳燃气锅炉以其环保性能突出的优点被广泛地应用。但是，目前燃气锅炉排烟温度普遍偏高（一般在180℃以上），造成很大的能源浪费已成为亟待解决的问题。本文对提高 WNS 型燃气锅炉利用冷凝器和预热器降低排烟温度，提高热效率作了初步探讨。