建筑室内消火栓系统管网计算优化研究

发布时间：2018-02-16 10:15

本文关键词： 消火栓给水系统超压环状管网水力计算　出处：《北京建筑大学》2013年硕士论文　论文类型：学位论文

【摘要】：建筑室内消火栓管网计算是建筑给排水设计中重要的课题之一,室内消火栓系统目前是我国采用的最基本和最普遍的消防系统,其管网设计优化对社会经济具有重大作用。本文前半部分主要介绍了消火栓给水系统的分类及其特点,消火栓系统的各组成部分,并对高层建筑的超压问题进行了分析,提出了预防措施。后半部分重点讨论了消火栓环状管网的水力计算。对于消火栓环状管网计算,我国长期按枝状管网计算,结果不符合实际水流状态,造成了巨大的浪费。本文对建筑室内消火栓环状管网计算进行研究,利用环状管网水力平衡方程,提出了一种新的消火栓给水系统环状管网计算方法,这种方法使得计算结果更接近实际状态,更经济安全。另外,本文还将计算方法编成了应用程序软件,借助浩辰CAD平台,利用其自身的图形数据库和一定的数据转换功能,将消火栓系统管段的平面数据(如管长、高程等)压入到管段中,作为基础条件,根据新的环状管网计算方法,在后台自行提取数据,并进行消火栓系统环状管网的水力计算,准确快速,大大提高了设计人员的工作效率。通过工程示例验证计算结果,环状管网软件计算的结果明显比传统枝状管网计算的结果小,在满足最不利点供水流量和压力的前提下,降低了消防水泵的扬程,减小了超压情况的发生。
[Abstract]:The calculation of indoor hydrant pipe network is one of the most important topics in the design of building water supply and drainage. At present, the indoor hydrant system is the most basic and universal fire fighting system used in our country. The first part of this paper mainly introduces the classification and characteristics of the hydrant water supply system, the components of the fire hydrant system, and analyzes the overpressure problem of the high-rise building. In the latter part, the hydraulic calculation of the annular pipe network of fire hydrant is discussed emphatically. For the calculation of the annular pipe network of fire hydrant, the calculation of the annular pipe network of fire hydrant in China has been carried out for a long time according to the branch pipe network, and the results do not accord with the actual flow state. This paper studies the calculation of annular pipe network of fire hydrant in building room, and puts forward a new calculation method of annular pipe network in water supply system of fire hydrant by using the hydraulic equilibrium equation of annular pipe network. This method makes the calculation results more close to the actual state and more economical and secure. In addition, the method is programmed into an application software, with the help of Haochen CAD platform, its own graphic database and certain data conversion function. The plane data (such as pipe length, height, etc.) of the fire hydrant system are pressed into the pipe section, as a basic condition, according to the new calculation method of the annular pipe network, the data are extracted by themselves in the background, and the hydraulic calculation of the annular pipe network of the fire hydrant system is carried out. The calculation result of circular pipe network software is obviously smaller than that of traditional branch pipe network calculation. On the premise of satisfying the water supply flow and pressure at the most unfavorable point, the head of the fire pump is reduced and the overpressure situation is reduced.
【学位授予单位】：北京建筑大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU892

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