The Study On Design And Optimization Of Fire Protection System In The High-rise Building About Zhongkedianshanggu A Block Construction Project

Fire is one of the most frequent and common disasters which are threats to public safety and social development. With the characteristics of rapid spread, difficult to fight and large numbers of fire hidden in the High-rise buildings, fire water supply system must be set up in the building to prevent and reduce the harm of high-rise building fires. Therefore, it is very important to optimize the design of fire water supply system for the high-rise building.This paper describes the classification, technical parameters, hydrant water supply systems and sprinkler systems of fire water supply system in high-rise building. The paper analyzes the design on fire and the present situation of fire protection facilities in the domestic and foreign building, and studies the optimization design on regional centralized fire water supply system and fire water supply system of high-rise building. The main contents are as follows:(1) The meaning and feasibility of regional centralized fire water supply system are introduced, and the questions and countermeasures in regional centralized fire water supply system are analyzed. Through analyzing the different characteristics between the independent fire water supply system and the regional centralized fire water supply system, this paper discusses the superiorities of the regional centralized fire water system.(2) This part analyzes and overpressure solutions of the hydrant water supply system. The hydrant water supply system which uses reducing valve is divided into high and low areas in this construction.(3) This paper analyzes the reasons of setting up the pressure stabilizing and strengthening facilities in high-rise buildings, introduces several kinds of the pressure stabilizing and strengthening modes, and puts forward the principles for installing the outlet pipe of roof water tank and pressure stabilizing and strengthening facilities. The pressure stabilizing and strengthening mode is adopted by stabilizing (pressure) pump and pressure tank, and a pressure stabilizing and strengthening facility is used separately in hydrant water supply systems and sprinkler systems in this project.(4) This paper analyzes the causes of overpressure in sprinkler system, and puts forward the corresponding measures for decompression. This project adopts the decompression orifice plate to reduce the pressure.(5) The project adopts regional centralized fire water supply system for hydraulic calculation by comparing the different advantages and disadvantages between the independent fire water supply system and the regional centralized fire water supply system.