文档介绍：消火栓给水系统动态模拟摘要建筑消防是建筑给排水设计中最重要的一部分内容,目前,室内消火栓给水系统又是建筑消防中采用的最基本、最普遍的一种灭火方式。长期以来,在工程实践中我们习惯了环状管网按枝状管网计算,造成了计算结果有一定的人为误差。本文在介绍消火栓系统的组成、特点的基础上,总结了消火栓系统常用的给水方式,并讨论了每种给水方式的性能,在实际工程中可根据建筑物结构的不同进行组合和扩展。此外,本文还分析了滴火栓给水系统超压产生的原因,。并提出了预防消火栓给水系统超压的有效措施。讨论了在消防过程中,消火栓系统管网中水流的真实状态。认为某一点着火后,不仅是传统的计算管路有水流通过,其他的管路也有水流通过。在此基础上,根据消火栓系统出水的的特点,应用环状管网的计算方法,利用有限元建立数学模型。该方法在计算水头损失、管段流量、消火栓节点压力等方面比传统方法要更加准确,也可被借鉴用于室外给水管网的计算。编制了计算程序, 为工程设计提供了一种计算准确、使用方便的计算软件。通过对工程实例的计算结果分析表明,在按规范要求最小管径计算时,管道中水流的实际流速小于最佳流速,因此消火栓系统管径有进步缩小的空间。关键词:消火栓消火栓给水系统给水方式超压水力计算 The Dynamic simulation inHydrant Ringed WaterSupply Abstract Fire protection ofbuildings isthemost important ofbuildings water supply and drainage engineering ,fire hydrant system isthe basic and extensively adopted technique ofbuildings have been used to calculate the diameter ofringed piping according toramiform piping inproject practice,then itresult factitious error. This paper studied and summarized the water supply mode based on the research ofcharacteristic and constitution offirehydrant system,and italsodiscuss theperformance ofevery modes can beexpanded and fittogether inthe practice of engineering according to the difference of buildings’construction. Besides,the paper analyzed the cause oftheoverpressure problems offirefighting water supplying system,and effectual measures prevented the overpressure problems were proposed according toexperiences. This paper discussed therealmodality ofhydrant ringed water supply inthe procedure figured out thatthere was flow ofwater not only inthe calculated pipeline but alsoinother thisbase,the paper gave away of hydraulic calculation according tothetinged hydrant piping method used FEM tobuild mathematic ismore accurate than traditionaI method attheaspect ofcalculating head loss,pipe flow and node pressure of mathematic model can alsobeused intheinside and outside ofwater supply piping calculation.