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暖通空调杂志社>期刊目次>2018年>第10期

基于离子色谱方法的水平管道内可吸入颗粒物沉降检测

Detection of inhalable particles depositing in horizontal pipes based on ion chromatography

张莎莎 樊洪明 张 成
北京工业大学 绿色建筑环境与节能技术北京市重点实验室

摘要:

提出了一种可吸入颗粒物的沉降检测方法,可用于测量多分散颗粒物在水平管道中的沉降。该检测方法类比生物、化学研究中的检测方法,将沉降表面上所附着的颗粒物溶解,使用离子色谱检测溶液浓度,再通过TSI颗粒浓度检测仪测量管道内颗粒物主流平均浓度,由此获得沉降速度。实验误差分析结果显示,该测试方法的误差可控制在10%以下。相比于荧光粒子湿化学分析法和中子活化法,本研究提出的方法更加经济、准确。

关键词:可吸入颗粒物,颗粒沉降,离子色谱,误差分析,表面粗糙度,沉降速度,实验分析

Abstract:

Proposes a method for detecting the deposition of inhalable particles, which can be used to measure the deposition of polydisperse particles in horizontal pipes. The detection method is similar to those used in biological and chemical studies. Dissolves the particles attached to the settling surface, and measures the solution concentration by ion chromatography. Measures the average concentration of particles in the pipes with the TSI particle concentration detector, and obtains the deposition velocity. According to the error analysis of the experiment, the error of this test method can be controlled less than 10%. Compared with the wet chemical analysis of fluorescent particles and neutron activation methods, this method is more economical and accurate.

Keywords:inhalableparticle,particledeposition,ionchromatography,erroranalysis,surfaceroughness,depositionvelocity,experimentalanalysis

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