[1]徐啸,金美华.运用水力学知识计算消防水池最低有效水位[J].中国给水排水,2025,41(10):75-78.
　XUXiao,JINMei-hua.Calculating Lowest Effective Water Level of a Fire Pool Using Principles of Hydraulics[J].China Water & Wastewater,2025,41(10):75-78.
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运用水力学知识计算消防水池最低有效水位

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第10期 页码: 75-78 栏目: 出版日期: 2025-05-17
Title:
Calculating Lowest Effective Water Level of a Fire Pool Using Principles of Hydraulics
作者:
徐啸， 金美华
（江苏省医药设计院有限公司，江苏 无锡 214064）
Author(s):
XU　Xiao， JIN　Mei-hua
（Jiangsu Pharmaceutical Design Institute Co. Ltd.， Wuxi 214064， China）
关键词:
消防水池;  取水井;  最低有效水位;  短管淹没出流;  伯努利方程
Keywords:
fire pool;  water-supply well;  lowest effective water level;  submerged short-pipe outflow;  Bernoulli’s equation
摘要:
当消防水池设置共用取水井时，由于取水井与消防水池之间连通管的约束，二者需保持一定的水位高差才能保证连通管内产生足够的流量，此水位高差最终影响消防水池的最低有效水位。在确定消防水池最低有效水位时，不能只简单地从字面理解消防规范条文，而应进行深入分析计算，否则将会造成取水井内补水不及时，消防泵处于空转状态，无法提供消防水量的现象。为避免类似问题的发生，运用水力学中的短管出流知识和伯努利方程，对设置取水井的消防水池最低有效水位进行理论分析，并根据不同情况选取合适的水力学公式进行准确计算，可为相关工程设计提供参考。
Abstract:
Due to the limitations imposed by the connecting pipe between the water-supply well and the fire pool, it is necessary to maintain a certain water level difference between them to ensure adequate flow in the connecting pipe. This water level difference ultimately influences the lowest effective water level of the fire pool in the scenario of fire pools featuring a shared water-supply well. When determining the lowest effective water level of the fire pool, it is not sufficient to interpret the provisions of the fire code literally. Instead, an in-depth analysis and precise calculation are required. Failure to do so may result in untimely water supply from the well, the fire pump running without water, and the inability to provide firefighting water when needed. To prevent the recurrence of similar issues, this study theoretically analyzed the lowest effective water level of the fire pool with a water-supply well by applying the principles of short-pipe outflow and Bernoulli’s equation in hydraulics. Furthermore, an appropriate hydraulic formula was selected based on different scenarios to ensure precise calculations, thereby providing valuable references for relevant engineering designs.
更新日期/Last Update: 2025-05-17