硬泡聚氨酯喷涂内保温冷库外墙隔汽需求计算  

Vapor Barrier Requirements Calculation for the Internal Insulation of Sprayed Rigid Polyurethane Foam in the Exterior Wall of Cold Storage

作　　者：赵彤宇 Zhao Tongyu(Huashang International Engineering Co.Ltd.,Beijing,100069,China)

机构地区：[1]华商国际工程有限公司,北京100069

出　　处：《冷藏技术》2023年第2期4-10,共7页Journal of Refrigeration Technology

摘　　要：采用美国材料试验协会隔汽标准的计算方法对硬泡聚氨酯喷涂内保温冷库外墙隔汽需求进行了计算与分析。提出应根据冷库冷间的设计温度、所在气候分区及外墙基层材料,计算确定是否需要设置隔汽层,以及当需要设置隔汽层时,隔汽层所需的蒸汽渗透阻,并给出了不同气候分区特定工况下隔汽层蒸汽渗透阻的建议值。The calculation method of the American ASTM Designation 755 is used to calculate and analyze the vapor barrier demand of the rigid foam polyurethane spraying insulation on exterior wall of the cold storage.It is proposed that whether the vapor barrier is needed,and the resistance of it when needed should be calculated according to the design temperature of the cold storage room,the climate zone the cold storage located and the the outer basement of the exterial wall.The recommended values of water vapor resistance of vapor barrier under specific conditions in different Chinese climate zones are given.

关 键 词：冷库 外墙 内保温 聚氨酯 隔汽层 

分 类 号：TU761.12[建筑科学—建筑技术科学]