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Studies on the Ringed Arrangement of Indoor Fire Hydrant System

Author: LiXiaoJiang
Tutor: GaoYuFei
School: Xi'an University of Architecture and Technology
Course: Municipal Engineering
Keywords: Fire hydrant Fire hydrant water supply system Pipe Network Finite element method Hydraulic calculation
CLC: TU892
Type: Master's thesis
Year: 2008
Downloads: 69
Quote: 0
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Abstract


Hydrant system as a mandatory national norms set fire facilities, is an important means of fighting high-rise building fire. Fire hydrant system water supply pipe branched system and two forms of the looped network. Loop pipe network standpipe communicate with each other easily accessible water, the water supply capacity than the branched system, need to increase the amount of water supply in the fire pump adapter and looped network to meet the needs of the fire; safe supply of water reliable, maintenance or failure of a pipe section in the pipe network, able to ensure that the fire water supply. \civil construction for fire protection design \are required to be looped network. In this paper, on the basis of the elaborate fire hydrant system composition, characteristics of the analysis of the hydrant system different ring network of water supply. In the actual project according to the structure of the building water supply. The choice of the water supply directly affect the investment economy, operational reliability, and many other issues related to the system pressure balance and water pump, water tank set, piping, and many other important issues, often determines the success or failure of the system, to first solve the problem of drainage design in the design of high-rise projects. Our indoor fire hydrant looped water distribution network hydraulic calculation, estimation method is commonly used in the engineering design, or looped network simplifies the branched pipe network calculation results with the actual running error, resulting in fire hydrants to pump selection or system decompression unreasonable. In this paper, the finite element analysis of the fire hydrant water supply network mathematical model, the establishment of the overall matrix of the pipe network, the application of symmetric positive definite equations square root method to solve pipe network hydraulic balance equations obtained hydraulic factors. Preparation of Universal Computer Program, faster and more accurate hydraulic calculation accuracy is much higher than the current approximate calculation. Hydrant system hydraulic calculation using the finite element method to establish mathematical model, close to the water pipe network form, the method is simple, enter the original data, the iteration convergence speed, accurate calculation of superiority. The method can also be reference to the interior and exterior to the design of water distribution network, will greatly enhance the efficiency of the design work. The paper only provides a practical method of calculating ring network hydraulic calculation, preparation for the entire calculation software needs to closely cooperate with professional programmers. The developer of this software will be a major step forward pipe network design work.

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CLC: > Industrial Technology > Building Science > Housing construction equipment > Safety equipment > Fire protection equipment
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