主流区理论——我国医院洁净手术室要求集中布置送风口的理论基础  

Main flow area theory: the basis of central air supply in hospital operating rooms in China

作　　者：许钟麟[1] 沈晋明[2] 梅自力[3] 郭大荣 

机构地区：[1]中国建筑科学研究院空调所 [2]同济大学 [3]总后建筑设计研究院 [4]航天工业总公司一部

出　　处：《暖通空调》2001年第5期2-6,共5页Heating Ventilating & Air Conditioning

摘　　要：我国标准将洁净手术室分为四级 ,其中前三级要求在手术台上方集中布置送风口 ,这样做是为了保护关键区域 ,符合我国早就提出的局部净化和主流区理论。按主流区理论计算结果表明 ,这样布置送风口 ,将在同样换气次数下使手术台区洁净度提高一个级别 ,使主流区细菌浓度和周边区细菌浓度之比降到 0 .The operating rooms are classified by their cleanliness into four grades as stipulated in a China's national standard. It is required that a central air supply ceiling directly over the operating table for the first three grades of operating rooms. This arrangement, based on the main flow theory founded as early as later 1970s in China, can effectively protect the critical area, upgrading the space cleanliness while the air changes remain the same and keeping the ratio of criteria concentrations in the main flow area and the peripheral area under 0.5.

关 键 词：医院 洁净 手术室 主流区 送风口 

分 类 号：TU834.52[建筑科学—供热、供燃气、通风及空调工程]