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为了研究病房内各种参数对空媒传播疾病的影响,利用浓度衰减方程和Wells-Riley方程研究分析了通风量、易感染人员数量、病房尺寸等参数与空媒传播疾病感染风险的关系.分析结果显示:增加病房内的通风量可以有效地降低空媒传播疾病的感染几率;对于换气次数相同但面积不同的2个病房而言,大病房的通风量大于小病房的通风量;换气次数相同时,病房内的感染人数随易感染人员数量的增加而增加.因此,病房内所需的通风量不仅与换气次数(ACH)有关,还与病房面积和病房内易感染人员数量有关.
In order to study the impact of various parameters of the ward on airborne disease, the relationship between airborne diseases, the number of vulnerable persons and the size of ward and the risk of airborne disease was analyzed by the concentration decay equation and the Wells-Riley equation. The results showed that: increasing the ventilation rate in the ward can effectively reduce the risk of airborne disease transmission; ventilation rate in the ward is larger than that in the ward for two wards with the same ventilation frequency but different area; ventilation The number of infections in the ward increased with the number of susceptible persons at the same number of times, so the amount of ventilation required in the ward was not only related to the number of ventilation (ACH) but also to the area of the ward and the number of vulnerable persons in the ward .