氮气窒息的实验室临界面积测算  

Calculation of laboratory critical area for nitrogen asphyxiation

作　　者：李款 黄开胜[1] 艾德生[1] 林旭平[1] 郭玉凤[1] 李冰洋[1] LI Kuan;HUANG Kaisheng;AI Desheng;LIN Xuping;GUO Yufeng;LI Bingyang(Office of Laboratory Management,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学实验室管理处,北京100084

出　　处：《实验技术与管理》2022年第3期225-227,241,共4页Experimental Technology and Management

摘　　要：氮气等惰性气体是高校实验室中常见的气体,如果发生氮气泄漏,容易使实验室人员因缺氧而窒息,导致伤亡事故。因此,了解氮气窒息的实验室临界面积对于实验室安全检查以及安全设置气体监测设备具有实际意义。该文分别以氮气和液氮泄漏为例,以国家和行业标准为基础,对氮气窒息的实验室临界面积进行测算,以期为使用窒息性气体的高校实验室提供参考,提高实验室安全技术水平。Nitrogen and other inert gases are common gases in university laboratories.If leakage occurs,it is easy to suffocate the laboratory personnel due to hypoxia,resulting in casualties.Therefore,knowing the laboratory critical area of nitrogen asphyxiation is of practical significance for laboratory safety inspection and effective installation of gas monitoring devices.By taking nitrogen and liquid nitrogen leakage as examples respectively,the laboratory critical area of nitrogen asphyxiation is calculated in this paper on the basis of national and industrial standards,in order to provide reference for university laboratories using asphyxiating gases and improve the level of laboratory safety technology.

关 键 词：氮气 临界面积 实验室安全 

分 类 号：X921[环境科学与工程—安全科学] G482[文化科学—教育学]