基于CFD仿真的船舶负压隔离区空调通风设计

Design of Air Conditioning and Ventilation for Ship Negative Pressure Isolation Area Based on CFD Simulation

以船舶负压隔离区为研究对象,对其空调通风系统进行设计。运用计算流体力学(Computational Fluid Dynamics, CFD)技术,对隔离病房的气流组织优化和隔离区的压力梯度控制进行数值仿真分析。研究结果表明:对负压隔离病房采用上送风、下侧排风方式,可有效降低病房内的污染物质量浓度;逐级建立隔离区压力梯度,能使气流由干净区向污染区定向流动,对预防内部交叉感染、保障医护人员的健康具有重要作用。

An air conditioning and ventilation system is designed for the negative pressure isolation Area of ships,where Computational Fluid Dynamics(CFD)technology is used to carry out numerical simulation analysis on both the optimization of air distribution in the isolation ward and the pressure gradient control in the isolation area.The results show that the upper air supply and lower exhaust mode can effectively reduce the pollutant concentration in the negative pressure isolation ward,and gradually establishing pressure gradients in isolation zones can make airflow flow directionally from clean areas to polluted areas,which plays an important role in preventing internal cross infection and protecting the health of medical staff.