The Analysis And Dynamic Simulation Of Overlapped Pressure Water Supply In High-rise Building

Water is the basis of lives, and one of the necessary materials for developing of cities. Along with the increasing of cities ,more and more high-rise buildings are completed and water supply in high-rise building becomes more important.For the developments of computer technique and autocontrol theory , second-water supply in high-rise building develops much more perfectly. Overlapped pressure water supply is improved on traditional second-water supply. Based on programmable computer and autocontrol theory , the fashion performs with saving water and energy , following the direction of water supply and inproving the level of second-water supply, when municiple water supply network and water quantity of consumers are appropriate. By the way of dynamic simulation , the modle of the fashion system can be built and be performed real-timely in computer , which will provide the plans for desighing and runing of the fashion .In this article, the dynamic model of the fashion is built with FLOWMSTER software which performs the analysis of 1-D fluids. Every part of the fashion sysytem will be modelled by the homologous component in FLOWMASTER software data-base and the built-network system can be visualized. The data of components , nodes and analysis can be input by the friendly database manager and data-input interface in FLOWMASTER, and-the dynamic simulation of the fashion system can be performed .By an example of design prject , the program script can be compiled by VB Script in FLOWMSTER software. The program script will be input and control the runing of the pumps chosen in the fashion system while the conditions (the pressure of municiple network , the water quantity of consumers, the level of expansion reservior ,i.e) are varying. After introducing the anlysis process and content of the fashion model system and building the gragh interface , the dynamic simulation will be conducted with many work conditions of the fashion . The course lines of components and nodes for the analysis results will provide the plan of desighing and runing, which makes the fashion perform much more soundly.