地铁车站消防泵自动启泵设计压力探讨  

Discussion on Pressure of Automatic Starting Fire Pump in Subway Station

作　　者：穆永信 王健稳 MU Yong-xin;WANG Jian-wen(Electrification Branch,China Railway Liuyuan Group Co.Ltd.,Tianjin 300250,China)

机构地区：[1]中铁第六勘察设计院集团有限公司电气化设计院分公司,天津300250

出　　处：《中国给水排水》2018年第18期66-68,共3页China Water & Wastewater

摘　　要：地铁车站消火栓系统通常采用消防水泵由市政给水管网直接抽水加压的供水方式,由市政管网替代高位水箱对消火栓系统进行稳压,并提供消防初期用水。市政管网供水压力不稳定,当借助消防泵组出口压力波动启动消防水泵时,必须合理确定消防水泵的启泵压力值,以避免出现消防水泵的误启动或火灾时无法启动消防水泵的现象。以某地下车站为例,对消防水泵及稳压泵的不同控制压力值的设定进行分析,确定消防水泵的启泵压力P不得低于消防水泵正常工作时压力设定点处的压力P0,稳压泵停泵压力Ps1=P0+0. 07～0. 10 MPa。In the hydrant systems of subway station, water is usually drawn directly from the municipal water supply network, and then pumped by the fire pump. Municipal water supply network is used instead of elevated fire tank to stabilize the pressure of fire hydrant system and provide initial water for fire protection. The water supply pressure of the municipal pipe network is unstable. When the fire pump is started with the aid of the pressure fluctuation of the fire pump group, it is necessary to reasonably determine the pump pressure value of the fire pump so as to avoid the phenomenon that the fire pump is started wrongly or could not be started. Taking an underground stations for example, the key points for setting the different control pressure values of the fire pump are analyzed. Then, it is concluded that the pressure value P which is used to turn on the fire pump must be over the pressure value P0 when the fire pump is running, and Ps1 =P0 ＋ （0.07 -0.10） MPa.

关 键 词：消火栓系统 自动启泵 压力 

分 类 号：TU892[建筑科学]