生物安全实验室围护结构关键节点的密封设计

Sealed Design of Key Nodes of Building Enclosure for Biosafety Laboratories

阐述了高等级生物安全实验室(BSL-3、BSL-4实验室)围护结构墙板材料选型、装配以及各种穿墙管道、充气密闭门和排风高效过滤单元等关键节点的密封设计,解决了围护结构的气密性问题。试验样板间的测试结果表明,实验室样板间的气密性达到了当室内空气压力上升到500Pa以后,自然衰减的气压在20min内小于250Pa的压力衰减指标要求。

Based on the engineering practice, the sealed design of key nodes for high-level biosafety laboratories（BSL-3 and BSL-4 Laboratory） are introduced including the selection and assemblage of panel materials of building enclosure, a variety of channels through walls, and inflatable airtight doors and efficient exhaust filtration unit, which can solve the gastightness questions of building enclosure. The test results of model laboratory show that natural attenuation of the pressure is less than 250 Pa in 20 rain when be indoor air pressure up to 500 Pa.