军事医学Issue(1)：52-55,4.DOI:10.7644/j.issn.1674-9960.2015.01.012
一种用于生物气溶胶检测的微环境密闭舱室的研制
Development of a micro-circumstance airtight cabin for bioaerosol testing
摘要
Abstract
Objective To develop a micro-circumstance airtight cabin for in the study of biological aerosols detection with such functions as airflow control and temperature and humidity detection .Methods Wind speed sensors , temperature and humidity sensors , electrical control valves , high efficiency filters and the vacuum pump formed the micro-circumstance regulating system .The techniques of airflow direction control , temperature compensation , air pressure control and aerosol uniformity distribution were used .Numerical simulation of aerosol concentration distribution in the airtight cabin was achieved using Fluent software .The bioaerosol concentration in different locations was tested by experiments .Results The micro-circumstance airtight cabin consisted of an airtight cabin and a control cabin .The control cabin used a single-chip microprocessor to provide air supply and exhaust air to the airtight cabin in a seaparate exhaust mode and cyclic ventilation mode.It worked under a negative pressure condition .Through numerical simulation,the aerosols were distributed through-out the cabin after five minutes of generation and the bottom airflow arrived at the top .The distribution of aerosol concentra-tion was approximately uniform .Conclusion The micro-circumstance airtight cabin is suited to various bioaerosols testing research thanks to its negative pressure working without bioaerosol leakage .关键词
生物气溶胶/微环境/密闭舱室Key words
bioaerosol/micro-circumstance/airtight cabin分类
医药卫生引用本文复制引用
李娜,温占波,杨文慧,王洁,胡凌飞,张柯,李劲松..一种用于生物气溶胶检测的微环境密闭舱室的研制[J].军事医学,2015,(1):52-55,4.基金项目
国家科技重大专项资助项目 （）
