用于建材污染物检测的环境舱内舱设计及低本底特性验证

Structural design and verification of low background adsorption characteristics of the inner chamber for the detection of building materials pollutants

环境舱检测建材污染物释放量前,应尽可能降低内舱的本底浓度,以实现对污染物释放量的准确检测。从结构设计、选材、接口及配件设计等多方面考虑,设计了低本底环境舱(体积为1 m^(3))的内舱结构;对舱体内部的惰性材料进行了性能测试,并对60 L内舱污染物释放量进行了测试。检测结果表明,内舱所涂敷的惰性涂层能够满足环境舱的使用要求,舱壁的惰性处理不会对其本底值造成不利影响。本实验结果验证了内舱结构设计的合理性,可为环境舱的研制提供参考。

Before the environmental chamber is utilized to detect the pollutant emission of building materials,the background concentration of the inner chamber needs to be as low as possible to enable accurate detection of pollutant emission.A 1 m^(3) environmental chamber with low background concentration was designed with careful considerations in structural design,material selection,interface and accessories design.The performance of inert materials inside the chamber was tested,and the pollutant release amount of 60 L inner chamber was tested.Test results showed that the inert coating applied in the inner bulkhead can meet the requirements of environmental chambers,and the inert treatment of the inner bulkhead will not adversely affect its background.The rationality of the design and development of the inner chamber structure is verified through experimental research,which can provide scientific basis and guidance for the development of environmental chambers.