双级反渗透水处理设备电气控制系统设计.pdf

双级反渗透水处理设备电气控制系统设计 摘 要 现今社会人民的生活水平的逐渐提高，人们对水的质量要求也越来越高。如今在很 多领域都需要纯度极高的水，如固态电子器件、厚膜和薄膜电路、印刷电路、真空管等 的制作都要使用超纯水。由于PLC 的发展及显而易见的优点, 使其在工业生产过程控制 中得到了广泛的应用, PLC 控制系统具有安全可靠、功能完善、操作简便等优点从而大 大的提高了水处理的自动化水平。本文主要介绍了双级反渗透水处理的发展背景及前 景，对其自控系统的控制方式，设备选型进行了阐述。本文给出了双级反渗透水处理系 统的主要电路原理图。 本装置主要分为两大部分，一是水的预处理，经过预处理系统，将原水中的杂质、 等有效去除。二是双级反渗透装置，双级反渗透水处理是渗透的反过程，利用压力去除 杂质，从而得到纯度极高的水来满足工业、生活等多方面的需求。 关键词：反渗透；自动控制；PLC I 双级反渗透水处理设备电气控制系统设计 Abstract Nowadays peoples living standards has gradually improved the quality of water is bound to put forward higher requirements. Today, all fields are required high purity water. Such as solid state electronic devices, thick film and thin film circuits, printed circuits, vacuum tubes also have to use ultra-pure water production. With the development of PLC and the obvious advantages of the process control in industrial production has been widely applied, PLC control system with safe, reliable, functional, convenient, and accurate, which greatly improved the water level of automation. This paper introduces the development of two reverse osmosis water treatment system and its background, its automatic control system of control, equipment selection are described. In this paper, two reverse osmosis water treatment system, the main circuit diagram. This device mainly consists of two parts .First, raw water pretreatment, municipal tap water into the original water tank, through the pretreatment system, the original water impurities has effectively removed. Second, two reverse osmosis, two reverse osmosis is the process of penetration phenomena in concentrated solution, Using pressure to remove impur