Boiler Components 空预器部分 Preheater section of air heater
Ø 作用：利用锅炉尾部的烟气热量来加热燃烧用空气，同时可以降低排烟温度， 提高锅炉效率
Ø 结构：管箱、联通箱、膨胀节等，分为立管式、卧管式，目前卧管式较多采用
Function: Utilizes the heat from the boiler's flue gas to heat the combustion air, while also lowering the exhaust gas temperature and increasing boiler efficiency.
Structure: Consists of pipe boxes, connecting boxes, expansion joints, etc. It is divided into vertical pipe type and horizontal pipe type, with the horizontal pipe type being more commonly used at present.
