《暖能空调》1992年第4期发表的《除尘器串联设计值得注意的一个问题》(以下简称《除》文)中第二级除尘器实际全效率计算方法有误。经第一级除尘后,第二级除尘器进口处粉尘粒径分布已经发生了变化,因而粉尘质量百分比也发生了变化。对于同型号的除尘器,其分级效率可以认为不变,但除尘器总效率发生了变化。原文作者误认为串联第二级除尘器进口粉尘质量百分数为第 The problem of the actual total efficiency of the second-stage dust remover in the “Delecator series design noteworthy problem” (hereinafter referred to as “the article”) published in “Thermal Air Conditioning” No. 4 in 1992 was incorrect. After the first stage of dust removal, the particle size distribution of dust at the inlet of the second stage dust collector has changed, and thus the percentage of dust quality has also changed. For the same type of dust collector, the classification efficiency can be considered unchanged, but the total efficiency of the duster has changed. The original author mistakenly believes that the percentage of imported dust in the second stage of the tandem collector is the first