研究和分析轨道交通消防给水系统在不同阶段消防规范下的方案特点、新旧规范的差异和演变过程，对不同时期城市轨道交通线路案例比较分析与研究，总结出每个阶段地铁车站消防系统的方案特点。按有无消防稳压设备的方案差别，分析如何实现自动启泵，在设消防水池吸水加压和市政直抽两种水源条件下分析如何确定压力开关动作值。提出地铁车站消防系统的优化方案，不断调整设计思路，结合现场调试操作经验，找到符合地铁特点的消防方案，提高地铁运营的消防安全。

This study analyzes the project characteristics of a subway fire water supply system under new regulations and under different phases of the fire protection code, examines the difference between the new and old code and its evolution process, compares and studies the urban rail transit lines in different periods, and summarizes the subway stations in each phase. The characteristics of the fire protection system plan are examined, both with or without fire stabilization equipment; methods to realize the automatic start of the pump are analyzed; and the difference in the start pressure value of the pump with two fire tank water source conditions, water suction and municipal direct pumping, is analyzed. The results of this study provide a method for developing an optimized plan for the fire protection system of subway stations, continuously adjusting the design ideas, and combining on-site commissioning and operation experience to find a fire protection plan that meets the characteristics of the subway and improves the fire safety of subway operations.

U212.3