地铁车站群组消防供水模式探讨
郑超
Exploration of Fire Water Supply Mode for Metro Station Cluster
ZHENG Chao
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作者信息:深圳市市政设计研究院有限公司， 518029， 深圳
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Affiliation:Shenzhen Municipal Design & Research Institute Co., Ltd., 518029, Shenzhen, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2023.08.047
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中图分类号/CLCN:U231.96
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栏目/Col:应用技术
摘要:
目的：目前，地铁车站消防供水按每座车站单独设置消防水源，造价昂贵且占用地下空间。为优化消防供水模式，合理利用有限的地下空间，提出地铁车站群组消防供水模式。方法：地铁车站群组消防供水模式将多站多区间作为一个消防单元，通过采用临时高压消防给水系统负责整个消防单元的水消防安全。介绍了管网压力损失计算方法，分析了线路坡度对消防泵房最远服务距离的影响，阐述了合理划分地铁车站群组消防供水规模的计算方法及过程。对该模式下报警控制、水泵接合器设置、邻站消防控制室设置与否等方面提出了建议。结果及结论：消火栓出口动压是否超压对地铁车站群组消防供水规模有较大影响。建议增设压力传感器、电磁流量计及压力开关，监测管网运行状况，确保消防系统安全稳定。
Abstracts:
Objective: Currently, the metro station fire water supply for each station is individually equipped with fire water sources, it is costly and occupies underground space. To optimize the fire water supply mode and appropriately utilize the limited underground space, a fire water supply mode for metro station cluster is proposed. Method: The fire water supply mode for metro station cluster considers multiple stations and intervals as a single fire unit, and adopts a temporary highpressure fire water supply system to ensure the safety of entire fire protection unit. The calculation method for pipeline pressure loss is introduced, and the influence of line slope on the farthest service distance of fire pump room is analyzed. The calculation method and process for determining the appropriate scale of fire water supply for metro station cluster are explained. Suggestions are put forward for alarm control, setting of pump coupling devices, and establishment of neighboring station fire control rooms under this mode. Result & Conclusion: The dynamic pressure at the hydrant outlet has a significant impact on fire water supply scale for metro station cluster. It is recommended to install pressure sensors, electromagnetic flow meters and pressure switches to monitor pipeline network operation and ensure fire protection system safety and stability.
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