改进了通风系统的设计,以减轻医院病房的感染风险:从通风孔设置的角度来看
Chen Ren1, Junqi Wang2, Zhuangbo Feng1
1School of Architecture, Southeast University, Nanjing, 210096, China.
Environmental pollution (Barking, Essex : 1987)
|June 19, 2023
概括
与排位通风 (DV) 和向下通风 (DWV) 相比,层层通风 (SV) 显著改善了空气中的污染物清除和在医院病房中减少感染风险. 靠近感染患者的通风口的最佳放置是有效控制感染的关键.
科学领域:
- 环境工程 环境工程
- 医疗设施设计 医疗设施设计
- 传染病控制和控制传染病
背景情况:
- 医院病房需要有效的通风来减轻空气中的污染物传播,并减少患者和工作人员的感染风险.
- 当前的通风策略往往忽视了通风口位置和感染源位置之间的关键关系.
- 系统设计通风模式具有挑战性,需要进一步研究最佳配置.
研究的目的:
- 研究不同通风模式 (排位通风,向下通风,层通风) 在去除空气中的污染物和降低医院病房感染风险方面的有效性.
- 分析不同数量和位置的通风孔对空气流和污染物分布的影响.
- 确定通风口和感染患者之间的最佳相对距离,以加强感染预防.
主要方法:
- 模拟的污染物度场被分析为三个通风模式:排位通风 (DV),向下通风 (DWV) 和层通风 (SV).
- 对于每个通风模式,评估了不同数量的通风口 (4,6和10) 的多个场景.
- 感染风险的评估是基于模拟的污染物度和通风口和感染患者位置之间的相对距离.
主要成果:
- 与DV和DWV相比,层层通风 (SV) 显示出卓越的性能,改善了75%的污染物清除和59%的感染风险缓解.
- 当出口和受感染患者之间的非维相对距离小于0.25时,平均感染风险低于7%
- 该研究确定了最佳的通风模式和出口定位策略,以有效控制医院环境中的空气污染物.
结论:
- 层层通风是一种高度有效的策略,可以增强空气中的污染物去除,并减少医院病房中的感染传播.
- 通风口与感染源的相对位置是设计高效的医院通风系统的关键因素.
- 这些研究结果为医疗机构的系统通风系统设计提供了指导,特别是在流行病爆发期间.
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