手术室门的开启对室内洁净度影响的实验研究  

Effects of Door-Opening on Cleanliness in Operating Room

作　　者：董书芸[1] 涂光备[1] 嵇赟喆[2] 陈雪芬[3] 凌继红[1] 

机构地区：[1]天津大学环境科学与工程学院,天津300072 [2]海军工程大学天津校区军港与海防工程系,天津300450 [3]天津经济技术开发区化学工业区总公司,天津300480

出　　处：《天津大学学报》2007年第4期489-493,共5页Journal of Tianjin University(Science and Technology)

摘　　要：为确定门的开启对室内洁净度的影响范围，利用GXH-3010D便携式红外线分析仪测量了示踪气体CO2在手术室门开启时浓度的变化情况．实验中，分别在无人进出和有人进出的情况下对门附近6个测点进行了详细的测量，由测量结果分析了门开启后走廊气流侵入的情况，并对有人进出和无人进出以及不同高度各个测点浓度的变化情况进行了比较．结果表明：污染侵入以1．5m高度为主，其侵入量为0．5m高度的5倍左右；有人进出的情况侵入量比无人进出时高出1～4倍甚至更多；侵入深度均可达距门2m处；开门后正压风量失去了对污染物的有效抵挡作用，人员的扰动加剧了污染物的侵入，建议加设前室，同时手术过程中应当尽量减少开门和人员进出的次数．To ascertain the range of the effects of door-opening on cleanliness in operating room, an experimental investigation was conducted using GXH-3010D Portable Infrared Analyzer. In this experiment CO2 was used as trace gas so that the variety of the concentration can indicate the effects of door-opening. Six sample spots near the door were detected when nobody walked through it and when a person walked through it. Experimental results show that the flow in the corridor could break in when the door is open： the inbreak quantity at 1.5 m high is about five times more than that at 0.5 m high ; the concentration when a person walks through the door is one to four times higher than that when nobody walks through it ; the range of the contamination diffused in operating room is about 2 m away from the door. We can conclude the positive pressure lost its function to keep out contamination and person＇s disturbance of the field aggravated the inbreak of the infectant. It is proposed that atria is necessary to the operating room and medical personnel had better not open the door and not pass in and out during the operation.

关 键 词：示踪气体 手术室 门 洁净室 污染控制 紊流 侵入量 气溶胶 

分 类 号：TU834.3[建筑科学—供热、供燃气、通风及空调工程]