Design for Energy-Saving Variable Frequency Constant Pressure Water Supply Control System
Abstract
As people living standard rise increasingly, the urban construction, the consumption of enterprise, and increase of water to improve the quality of drinking water problem, thus make city have become increasingly prominent, and how to keep the constant pressure water supply, improve water quality, and also supply reliability and safety requirements, and in response to building the saving-type society, rational development, utilization and save energy, save the effective protection of water resources has become an arduous task.
Analysis and check the task of urban water supply system, has the following characteristics. The water users, mostly in time to wake up in the morning, afternoon session, which USES the home is also great transformation of water supply system, and the high cost of existence, the reliability of the water resources, low waste is serious, imperfect network system.
This paper describes using PLC control to achieve energy-saving control system for constant pressure water supply inverter design. This design introduces a frequency control constant pressure water supply system, which can be instantaneous pressure changes under the pipe network, automatically adjust the speed of a water pump station pumps and multi-input and exit, so that the outlet end of the trunk pipeline network to maintain a constant set pressure value, and to meet the needs of the user's traffic, so that the whole system has to maintain energy-efficient best. Under the constant pressure water supply system control requirements, modules and implementing agencies (pump) for selection. In the analysis and comparison of several programs are given on the basis of the design implementation of the program. Finally, the software debugging process of the problems encountered and solutions are described.
This total of five chapters.
Chapter I: Introduction, focuses on constant pressure water supply control system for the status quo at home and abroad, and analysis of equipment needs for the kinds of trends, a clear background of graduate design engineering applications.
Chapter II: Energy-saving inverter control constant pressure water supply system design composition and control requirements.
Chapter III: The system's hardware design.
Chapter IV: The system's software design.
Chapter Five: Debugging problems.
Keyword：Constant pressure Frequency Energy-saving
目 录
摘 要 i
Abstract ii
目 录 iv
第1章 绪论 1
1.1 引言 1
1.2 国内外的现状 1
1.3 本课题主要内容 2
1.4本章小结 3
第2章 控制系统方案简介 4
2.1恒压供水变频节能控制系统的组成及其工作原理 4
2.2 控制系统整体设计方案介绍 7
2.3控制系统方案分析 9
2.4本章小结 10
第3章 控制系统硬件组成部分 11
3.1 元器件简介 11
3.2其他元器件 18
3.3 本章小结 18
第4章 控制系统软件设计 19
4.1 触摸屏界面设计 19
4.2 程序设计及其流程 22
4.3 本章小结 32
第5章 关键功能模块及调试 33
5.1 控制硬件电路调试 33
5.2 PC机在线调试系统 34
5.3触摸屏显示画面调试 36
5.4 变频器调试 37
5.5 本章小结 38
参考文献 39
致 谢 40
附录A 触摸屏画面： 41
