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回转式空气预热器是大型电站锅炉上广泛采用的烟风换热设备,通常布置在锅炉后部。漏风量高是该类设备的致命缺点,随着机组容量的增大,预热器的直径和高度也在增大,漏风的条件有所增加,所以在回转式空气预热器安装中,降低空气预热器漏风量,防止漏风超标是很重要的。对空气预热器的漏风进行了分析,提出了在安装过程中所需要采取的控制方法和对策。
Rotary air preheater is widely used in large power station boiler smoke heat exchanger equipment, usually arranged in the rear of the boiler. The high air leakage rate is a deadly disadvantage of this type of equipment. As the capacity of the unit increases, the diameter and height of the preheater also increase and the air leakage conditions increase. Therefore, in the installation of the rotary air preheater, Air preheater air leakage, air leakage to prevent excessive is very important. Air leakage of air preheater was analyzed, and the control methods and measures needed in the process of installation were put forward.