Constant Pressure Water Supply System For High-rise Realizes Central Management And Monitor Of Water Supply System

With the development of economy,the demands of the reliability of water-supply systemcontinually increase.This study combines frequency inversion technique power electronicsmodern control technology and computer interaction techniques to research constant pressurewater-supply system of without water tower used for high-rise,and this system has theadvantage of pressure stability good manipulation and power saving,and it will be good forapplication and popularize.According to analyze the advantages and disadvantages of existing water-supplysystem,this paper adopts variable frequency constant pressure water supply to towerless ofhigh-rise,and designs the hardware and software system.The detailed contents are as follows.1.according to analyze all kinds of water-supply projects,based on PLC,the controlsystem applies variable frequency constant pressure water supply and human-computerinterface monitor.2.Depending on the consitute of the water-supply system,hardware system isdesigned,which contains main control circuit frequency control circuit PLC interface circuitetc.devices types are also selected3.analyzing the demands of system,software system is designed.Control system aremainly through sensor technology and PID control to realize stably water supply.softwaresystem contains initialization motor start of pump motor auto shift of variable frequency andpower frequency of pump motor changing pump motor alarming etc.4.human-computer interface is designed with MCGS,which consists of entering systemmonitor interface displaying run-time curve and historial curve alarming etc.constant pressure water supply system for high-rise realizes central management andmonitor of water supply system.This system has the characteristic of reliable operation simpleto operate and Save energy.It can yield good economic benefits.