[1]王远飞,徐强,曾超,等.基于Matlab的自动喷水灭火系统设计计算[J].中国给水排水,2025,41(20):86-93.
　WANGYuan-fei,XUQiang,ZENGChao,et al.Design and Calculation of Automatic Sprinkler System Using Matlab[J].China Water & Wastewater,2025,41(20):86-93.
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基于Matlab的自动喷水灭火系统设计计算

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第20期 页码: 86-93 栏目: 出版日期: 2025-10-17
Title:
Design and Calculation of Automatic Sprinkler System Using Matlab
作者:
王远飞， 徐强， 曾超， 杨林， 陈星
（中国建筑西南设计研究院有限公司，四川 成都 610041）
Author(s):
WANG　Yuan-fei， XU　Qiang， ZENG　Chao， YANG　Lin， CHEN　Xing
（China Southwest Architectural Design and Research Institute Co. Ltd.， Chengdu 610041， China）
关键词:
自动喷水灭火系统;  Matlab编程;  水力计算;  迭代计算;  非线性方程;  逐点计算法
Keywords:
automatic sprinkler system;  Matlab programming;  hydraulic calculation;  iterative calculation;  nonlinear equation;  point-by-point calculation method
摘要:
自动喷水灭火系统作用面积内喷头喷水强度及配水干管压力的水力计算过程较为复杂，常规笔算方法可通过等效替换等策略提高计算效率，但通常会导致结果存在偏差。基于Matlab的水力计算方法（M-逐点计算法）可根据最不利点喷头工作压力自动完成系统总流量及始端节点压力的准确计算，利用其内置函数可高效处理水力计算过程中涉及的迭代计算及非线性方程求解问题，与常规水力计算方法相比，压力及流量误差分别降低约2.53%及0.70%。分析采用不同Ch系数时海曾-威廉公式的水力计算结果，探讨根据项目实际差异化选择Ch系数的意义。对现行规范采用的管道单位长度沿程水头损失公式进行对比，提供达西公式应用于自动喷水灭火系统设计计算的数字化路径。针对配水支管配管模式优化进行水力特性及经济性分析，提供非末端配水支管管径优化的实践路径。
Abstract:
The hydraulic calculation process for determining the spray intensity at sprinkler heads and the pressure within the distribution mains in the effective area of an automatic sprinkler system is highly complex. While conventional manual calculation methods may enhance computational efficiency through techniques such as equivalent substitution, they often result in inaccuracies or deviations in the final results. The hydraulic calculation method based on Matlab, referred to as the M-point-by-point calculation method, enabled automatic and precise computation of the total system flow rate and the pressure at the starting node, using the sprinkler head working pressure at the most hydraulically unfavorable point as input. By leveraging Matlab’s built-in numerical computing capabilities, the method efficiently addressed iterative calculations and nonlinear equation solving tasks inherent in the hydraulic calculation process. In comparison with conventional hydraulic calculation approaches, this method reduced errors in pressure and flow rate by approximately 2.53% and 0.70%, respectively. The hydraulic calculation results using the Hazen-Williams formula under varying Ch coefficients were analyzed, and the significance of differentiating Ch coefficient selection based on actual projects was explored. The equations for head loss per unit length along the pipeline specified in current standards were compared to establish a computational framework that enables the application of Darcy-Weisbach formula in the design and hydraulic calculation of automatic sprinkler systems. A comprehensive analysis of hydraulic characteristics and economic benefit was conducted to optimize the piping configuration of distributing branches, and a practical methodology for optimizing pipe diameters of non-terminal distributing branches were proposed.

相似文献/References:

[1]余小明.EXCEL迭代计算在自动喷水灭火系统水力计算中的应用[J].中国给水排水,2020,36(10):41.
[2]黄晓家,赵耀,谢水波,等.高大空间建筑自动喷水灭火数值模拟研究[J].中国给水排水,2020,36(17):6.
　HUANG Xiao-jia,ZHAO Yao,XIE Shui-bo,et al.Numerical Simulation of Automatic Sprinkler in High Clearance Building[J].China Water & Wastewater,2020,36(20):6.
[3]徐得潜,钱安贞.自动喷水灭火系统设计流量计算方法的研究[J].中国给水排水,2020,36(22):130.
　XU De-qian,QIAN An-zhen.Research on Calculation Method of Design Flow of Sprinkler System[J].China Water & Wastewater,2020,36(20):130.
[4]米长虹,孔德骞.自动喷水灭火系统喷头梁间优化布置探讨[J].中国给水排水,2023,39(2):80.
　MIChang-hong,KONGDe-qian.Discussion on Optimal Arrangement of Sprinkler among Beams in Automatic Sprinkler System[J].China Water & Wastewater,2023,39(20):80.

更新日期/Last Update: 2025-10-17