降低“平疫结合”手术室污染物外溢的方法探究

Exploration of Methods to Reduce Contaminant Spillage in a"Combined Flat and Epidemic"Operating Room

针对“平疫结合”手术室污染物在开门期间溢出到走廊的问题进行了研究,分析了增大开门期间手术室排风量和在门前提前形成稳定风幕等措施对污染物溢出的阻断效果。结果表明,手术室与走廊的空气温差越大,溢出到走廊的污染物越多。在开门期间临时增大手术室排风量和在门前提前形成稳定风幕等方式均能有效降低手术室污染物溢出量,但不能杜绝溢出现象。开门期间临时增大的室内排风量不小于2.65m^(3)/s;门口空气幕吹风量不小于0.2m^(3)/s。

A study was conducted on the problem of pollutants spilling into the corridor during the opening of the door in the"combined flat and epidemic"operating room,and the effect of measures such as increasing the amount of air exhausted from the operating room during the opening of the door and forming a stable air curtain in front of the door in advance on blocking the spillage of pollutants was analyzed.The results showed that the greater the air temperature difference between the operating room and the corridor,the more pollutants spilled into the corridor.The temporary increase of the operating room exhaust air volume during the opening of the door and the formation of a stable air curtain in advance of the door can effectively reduce the amount of pollutant overflow from the operating room,but cannot eliminate the overflow phenomenon.Temporary increase in indoor exhaust air volume during the opening of the door is not less than 2.65m^(3)/s;air curtain blowing volume at the door is not less than 0.2 m^(3)/s.