东北地区地铁车站通风空调方案对比分析

Comparative analysis of ventilation and air-conditioning schemes for metro stations in north-east area

地铁环控通风系统的任务是在正常运行期间为地铁乘客提供舒适环境,并能在紧急情况下迅速疏散乘客,尽可能减少损失。不同城市的气候条件、室外温湿度差异很大,因此选用何种环控方案,应根据客观条件、工程造价、运行效果等方面进行综合分析。此文以沈阳地铁车站为例,对通风方案和空调方案进行了CFD仿真模拟和对比分析,探讨了东北城市地铁车站采用通风方案的可行性。

The task of the HVAC system （heating, ventilation ＆ air conditioning） of metros is to provide the passengers with a comfortable environment in the normal operation of the metro, and be able to promptly evacuate the passengers in case of emergency to reduce the loss to a minimum. The climate conditions and outdoor humidity of different cities differ greatly. Hence the selection of the HVAC schemes should be based on a comprehensive analysis according to the objective conditions, engineering cost, operation resuits, etc. Taking the Shenyang metro for example, this article makes a CFD simulation and performs a comparative analysis of the ventilation and air - conditioning schemes and explores the feasibility of adopting the ventilation scheme at the metro stations of cities in the north - east area.