众所周知,空气预热器的漏风,特别是回转式预热器的漏风,对锅炉的安全、经济运行有很大影响。对新投运的机组,以及大、小修前后的锅炉都要进行漏风试验,以评定制造、安装和检修质量;当对锅炉设备进行改造时(如送引风、制粉和燃烧系统的改进),也需要预热器确切的漏风数据。所以漏风测量是电厂热工试验中的经常性工作。 As we all know, air preheater air leakage, especially rotary preheater air leakage, the boiler safety, economic operation have a great impact. Leakage tests should be carried out on newly commissioned units, and on large and small pre-and post-boilers to assess the quality of manufacture, installation and maintenance. When boiler equipment is retrofitted (such as draft-leaking, milling and combustion system improvements) , But also the exact air leakage data for the preheater. Therefore, air leakage measurement is a thermal power plant test in the regular work.