主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2021, Vol. 40 ›› Issue (1): 37-41.

• • 上一篇    下一篇

排烟管道顶部接风管对带上盖车辆基地排烟效果的影响

翁德耀1，郑翔1，黄先健1，谢宝超2，王强华2，郑思宇2，赵家明2   

  1. 1. 广州地铁设计研究院股份有限公司，广东广州510010；2. 中南大学防灾科学与安全技术研究所，湖南长沙410075
  • 出版日期:2021-01-15 发布日期:2021-01-15
  • 通讯作者: 谢宝超，男，中南大学铁道学院副教授，博士，湖南省长沙市韶山南路22 号，410004。
  • 作者简介:翁德耀（1975-），男，广州地铁设计研究院股份有限公司副总工程师兼建筑规划分院院长，高级设计师，主要从事地面建筑、轨道交通车站建筑、装修导向、景观设计等专业及综合交通枢纽设计，广东省广州市环市西路204 号，510010。
  • 基金资助:
    国家重点研发计划项目（2017YFB1201204）；广州市轨道交通十八号线及二十二号线带上盖开发段场盖下防灾救援专题研究项目；广州市轨道交通十八号线及二十二号线超长大区间防灾救援专题研究项目

Influence of top branch pipe of exhaust pipe on the exhaust effect of a covered vehicle base

WENG De-yao1，HUANG Xian-jian1， ZHENG Xiang1，XIE Bao-chao2， WANG Qiang-hua2，ZHENG Si-yu2，   

  1. 1. Guangzhou Metro Design Institute Co., Ltd., Guangdong Guangzhou 510010, China; 2. China Institute of Disaster Prevention Science and Safety Technology, Central South University, Hunan Changsha 410075, China
  • Online:2021-01-15 Published:2021-01-15

摘要： 提出了一种提高带上盖车辆基地机械排烟效果的方法，即设置顶部接风管。采用CFD 流体力学数值模拟软件对顶部接风管的排烟效果进行研究。设置了4 种开孔方式、3 种顶部接风管开孔个数以及不同排烟量，通过测量带上盖车辆基地烟气层高度、盖板下方温度、能见度、CO 浓度进行对比分析。结果表明：4 种开孔方式排烟效果从好到差依次为顶部接风管四周侧部开孔、顶部开孔、侧部开孔、底部开孔；顶部接风管开孔个数减少对排烟效果无明显影响，但会增大排烟口风速；设置顶部接风管会提升带上盖车辆基地的机械排烟量，能明显提升其排烟效果。

关键词: 带上盖车辆基地, 顶部接风管, 排烟口, 排烟效果

Abstract: A method to improve the mechanical smoke exhaust effect of a vehicle base with a cover by setting up a top branch pipe was proposed. CFD fluid dynamics numerical simulation software was used to study the smoke exhaust effect of the top branch pipe. Four openings embodiment, three kinds of top air duct openings and different amount of smoke were provided, the comparative analysis was conducted through measuring the height of smoke layer, temperature under the cover, visibility and CO concentration of vehicle base with upper cover. The results showed that the smoke exhaust effect of the four kinds of openings is in the order of good to poor as top branch pipe, top opening, side opening, bottom opening.The reduction of the number of openings in the top branch pipe has no significant effect on the smoke exhaust effect, but it will increase the air velocity at the smoke vent. The mechanical smoke exhaust volume of the vehicle base with the upper cover will be increased by setting the top branch pipe, which can improve the smoke exhaust effect significantly.

Key words: covered vehicle base, top branch pipe, smoke vent;smoke exhaust effect

中图分类号: