消防泵自灌吸水工况试验研究——基于消防水池最低有效水位设计高度的探讨

发布时间：2018-05-22 08:27

本文选题：消防泵 + 自灌吸水　；参考：《给水排水》2017年10期

【摘要】：消防泵房和消防水池是给排水专业的重要机房及附属构筑物之一,水池荷载及所需建筑面积直接影响建筑和结构专业的平面布局和计算,要求给排水专业提供准确的条件,水池有效容积的计算则是为专业配合提供准确条件的前提。针对《消防给水及消火栓系统技术规范》(GB 50974—2014)中关于消防水池最低有效水位和自灌吸水的争议,模拟消防系统搭建中试平台以验证消防水泵自灌式吸水及运行的全过程。试验结果表明,当消防水池的水位由于消防泵吸水而下降至吸水横管以下后,主泵停泵等待数分钟后再切换备用泵,备用泵能够正常启动。因此,消防水池的有效容积应从最低有效水位算起,而最低有效水位与是否高于消防泵吸水横管无关。
[Abstract]:The fire fighting pump house and fire water pool are one of the important machinery rooms and ancillary structures of water supply and drainage specialty. The load of pool and the required building area directly affect the plane layout and calculation of the specialty of architecture and structure, and require the specialty of water supply and drainage to provide accurate conditions. The calculation of the effective volume of the pool is the premise of providing accurate conditions for professional cooperation. In view of the dispute about the minimum effective water level and self-irrigation suction water level of fire water pool in "Technical Specification for Fire Water supply and Fire hydrant system" (GB50974-2014), a pilot platform was built by simulating fire control system to verify the whole process of self-irrigation water absorption and operation of fire water pump. The test results show that when the water level of the fire tank drops below the horizontal pipe due to the suction of the fire pump, the main pump stops the pump for a few minutes before switching the backup pump, and the backup pump can start normally. Therefore, the effective volume of fire tank should be calculated from the lowest effective water level, and the lowest effective water level has nothing to do with whether or not it is higher than the horizontal pipe of fire pump suction.
【作者单位】：中国建筑设计院有限公司;北京市公安消防总队;
【分类号】：TU892

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