轨道交通双岛四线站台辅助排烟风速实测及模式优化

消防科学与技术 ›› 2024, Vol. 43 ›› Issue (10): 1388-1393.

轨道交通双岛四线站台辅助排烟风速实测及模式优化

刘凯

（轨道交通工程信息化国家重点实验室（中铁一院），陕西西安 710043）

收稿日期:2023-11-07 修回日期:2024-02-01 出版日期:2024-10-15 发布日期:2024-10-15
作者简介:作者简介：刘凯(1987- )，男，陕西渭南人，轨道交通工程信息化国家重点实验室（中铁一院）高级工程师，主要从事城市轨道交通设计方面的研究，陕西省西安市雁塔区公园南路60号，710043，648185054@qq.com。

Measurement and mode optimization of auxiliary smoke exhaust wind speed for platforms on double island and four line

Liu Kai

(State Key Laboratory of Rail Transit Engineering Informatization(FSDI), Shaanxi Xi'an 710043, China)

Received:2023-11-07 Revised:2024-02-01 Online:2024-10-15 Published:2024-10-15

摘要/Abstract

摘要： 以成都轨道交通中医大省医院站为研究对象，对既有辅助排烟系统效果进行了现场实测，从风阀密闭性、辅助排烟模式、辅助排烟管路等方面分析了既有辅助排烟模式的可优化空间，提出了相应的优化方案，并通过现场实测验证了优化方案的可行性。主要结论有：组合式风阀的密闭性对辅助排烟效果影响较大；同时开启站台两端及中部站台门辅助排烟能较好地解决不同位置楼扶梯风速不均匀的问题，满足所有楼扶梯1.5 m/s向下气流的要求；TVF与OTE风机辅助排烟时端门处存在相互抵消作用，仅开启TVF风机辅助排烟效果更好；仅开启站台一侧的站台门，减少区间隧道漏风点，可增加楼扶梯口风速。

关键词: 双岛四线, 辅助排烟, 风速实测, 排热风机

Abstract: This article takes the Chengdu Metro Traditional Chinese Medicine Provincial Hospital Station as the research object, and conducts on-site testing on the effectiveness of the existing auxiliary smoke exhaust system. From the aspects of air valve sealing, auxiliary smoke exhaust mode, and auxiliary smoke exhaust pipeline, the optimization of the existing auxiliary smoke exhaust mode is analyzed, and corresponding optimization plans are proposed. Finally, the feasibility of the optimization plan is verified through on-site testing. The main conclusions are: The airtightness of the combined air valve has a significant impact on the auxiliary smoke exhaust effect; Simultaneously opening both ends of the platform and the middle platform doors to assist in smoke exhaust can effectively solve the problem of uneven wind speed in different positions of escalators, and better meet the requirement of downward airflow of 1.5 m/s for all escalators; When TVF and OTE fans assist in smoke exhaust, there is a mutual cancellation effect at the end door, and only opening the TVF fan for auxiliary smoke exhaust has a better effect; Only opening the platform door on one side of the platform can reduce the air leakage points in the section tunnel and increase the wind speed at the entrance of the escalator.

Key words: double island and four lines, auxiliary smoke exhaust, wind speed measurement, exhaust fan

刘凯. 轨道交通双岛四线站台辅助排烟风速实测及模式优化[J]. 消防科学与技术, 2024, 43(10): 1388-1393.

Liu Kai. Measurement and mode optimization of auxiliary smoke exhaust wind speed for platforms on double island and four line[J]. Fire Science and Technology, 2024, 43(10): 1388-1393.