静压平衡法测试烟道气时采样嘴的选择

Select Sampling Mouth in Smoke Dust Measment by Static Pressure Balance Method.

静压平衡法测试烟道气时，需要选择不同的采样嘴，本文通过对烟道和采样系统之间的分析，得出了一个采样嘴预选公式。通过实践验证，证明该公式简单可靠，并给出了使用方法。

A reasonable sampling mouth must be selected in smoke dust measment by static pressure balance method.This article give a sampling mouth selecting formula after studing the stack and sampler systems,and shows the formula is simple and responsible by examination.