严寒地区方舱医院冬季通风系统设计模拟分析
Simulation on ventilation system design for a shelter hospital in winter in severe cold zone
摘要：
针对严寒地区拟建的方舱医院通风系统改造项目，分析了病床区的通风量和新风热负荷，确定了新风系统的设计参数；模拟分析了9种送风方案的室内气流组织及污染物排除效果，提出了合理的送风方案；分析了严寒地区采用不同热源加热新风的能耗问题，提出了减少能耗的措施。结果表明：布袋风管吊装高度为4.5 m、送风温度为26 ℃、送风速度为3.0 m/s的送风方案最合理，使送风得到有效利用。
Abstract：
Aiming at the ventilation system reconstruction project of a shelter hospital to be built in the severe cold zone, the ventilation rate and the outdoor air heating load in the sickbed area are analysed, and the design parameters of the outdoor air system are determined. The indoor air distribution and pollutant removal effects of nine air supply schemes are simulated and analysed, and a reasonable air supply scheme is put forward. The energy consumption of heating outdoor air with different heat sources in the severe cold zone is analysed, and the measures to reduce energy consumption are put forward. The results show that the most reasonable air supply scheme is that the hoisting height of the bag duct is 4.5 m, the air supply temperature is 26 ℃ and the air supply speed is 3.0 m/s, so that the supply air can be used effectively.
Keywords:shelter hospital; severe cold zone; ventilation system; air supply scheme; bag duct; air distribution; air supply rate; energy consumption