基于空气幕和挡烟垂壁的地铁站烟气控制

通过研究空气幕和挡烟垂壁阻挡烟气蔓延的性能,结合地铁站模型,利用FDS对控烟措施进行研究分析.考虑挡烟垂壁的高度以及空气幕的风速大小对烟气蔓延控制效果的影响.结果表明,挡烟垂壁高度越大越能有效控制烟气蔓延至站厅层;空气幕的风速适当增大能有效地把烟气控制在站台层.二者的有效结合、合理设置能抑制烟气蔓延至站厅层.

Subway station smoke control based on the air curtain and smoke-proof pendant wall

FDS was used to analyze the smoke control measures combined with the subway station model through the research of smoke prevention performances of air curtain and smoke-proof pendant wall.The analysis was done under the consideration of smoke-proof pendant wall’s height and wind speed of air curtain on the effects of smoke spread control.It showed that the higher smoke-proof pendant wall could effectively control the smoke spread to the station hall and appropriate increase of the air curtain wind speed could control the smoke at the station effectively.The effective combination and reasonable set of the smoke-proof pendant wall’s height and air curtain wind speed could inhibit the smoke spread to the station hall.