恒压供水系统自动控制设计要点[修改版]

第一篇：恒压供水系统自动控制设计要点摘 要 变频调速恒压供水系统，该系统能够根据运行负荷的变化自动调节供水系统水泵的数 量和转速，使整个系统始终保持高效节能的最佳状态。 本文主要针对当前供水系统中存在

第一篇：恒压供水系统自动控制设计要点 摘要 变频调速恒压供水系统，该系统能够根据运行负荷的变化自动调节供水系统水泵的数量和转速，使整 个系统始终保持高效节能的最佳状态。 本文主要针对当前供水系统中存在的自动化程度不高、能耗严重、可靠性低的缺点加以研究，开发出 一种新型的并在这三个方面都有所提高的变频式恒压供水自动控制系统。全文共分为四章。第一章阐明了 供水系统的应用背景、选题意义及主要研究内容。第二章阐明了供水系统的变频调速节能原理。第三章详 细介绍了系统硬件的工作原理以及硬件的选择。第四章详细阐述了系统软件开发并对程序进行解释。 PLC 关键词：变频器；恒压供水系统； Abstract Frequency conversion constant pressure water supply system, the system is capable of automatically adjusting water supply system based on load changes of quantity and speed of the pump, always maintain the high efficiency and energy saving the best state of the This article primarily for current there is ahigh degree of automation in the water supply system, serious disadvantages, reliability, low energy consumption study developed anew and increased in these three areas of automatic control system of frequency conversion constant pressure water supply. The text is divided into four chapters. Chapter Isets out the water supply system of main research topics on background, meaning and content. Chapter II sets out the principle of variable frequency speed adjusting energy saving of water supply systems. Chapter III details the working principle of system hardware and hardware choices. The fourth chapter elaborates system software development and to explain the procedures