某负压二级生物安全实验室空调通风设计探讨

HVAC Design of Negative Pressure Biosafety Level-2 Laboratory

生物安全实验室在新冠病毒肺炎防治中起着举足轻重的作用,其建设也越来越受到社会重视。本文以北京市某二级生物安全实验室工程为例,分析了项目的工艺布局,对空调通风系统的设计参数、压力梯度、气流组织、净化消毒设计以及自动控制措施等进行了原理性阐释。认为负压生物安全实验室的空调通风设计应以控制污染物扩散和减少对操作人员的危害为根本出发点,以确保房间压力梯度和气流流向正确为主要任务。期望能增进工程建设、设计以及管理人员对生物安全实验室空调通风系统的理解,更好地为实验室安全稳定运行保驾护航。

Biosafety laboratory plays an important role in the prevention and control of COVID-19,and its construction has been paid more and more attention.Taking a negative Pressure Biosafety Level-2 laboratory project in Beijing as an example,this paper analyzes the process layout of the project,and explains the design parameters,pressure gradient,air distribution,purification and disinfection design,automatic control measures of the air conditioning and ventilation system in principle.The air conditioning and ventilation design of the negative pressure biosafety laboratory should be based on controlling the diffusion of pollutants and reducing the harm to the operators,and the main task is to ensure the correct pressure gradient and air flow direction in the room.It is hoped that this paper can enhance the understanding of the HVAC system of the biosafety laboratory for the engineering construction,design and management personnel,and better guarantee the safe and stable operation of the laboratory.