【作者】 王雪峰；

【导师】 朱天宇；

【作者基本信息】 河海大学 ， 机械电子工程， 2003， 硕士

【摘要】 臭氧生物活性炭饮用水深度处理工艺已成为一种优越的净水工艺，正在国内外得到广泛的应用，该工艺要求臭氧投加量及处理工艺流程适应不同的水质情况，以达到净化水质同时减少臭氧消毒副产物的目的。因此对臭氧投加量的控制及工艺流程的优化尤为重要。 本文首先介绍了臭氧的性质及净水作用的机理，结合国内外有关水处理技术，提出工艺流程优化方案。重点阐述了根据制水工艺特点制定了系统总图及主要工艺流程图，并用SIEMENS公司的STEP7-Micro编程软件编制制水控制程序，达到系统自动控制的目的，利用可编程控制器实现该工艺在小区分质供水的自动控制。 实际饮用水处理系统由于存在复杂性、非线性、时变性，本文根据臭氧生物活性炭水处理工艺存在复杂性、非线性、时变性等特点，将模糊控制应用在水处理这一不确定的非线性时变系统，针对不同水温下臭氧利用率及水质的变化，设计一种基于系统过程状态的变结构的模糊控制器，以单片机作为主要控制硬件，按查表方式设计软件，对进水阀门开度进行在线控制，调节臭氧气体与进水的比例(臭氧流量及浓度不变)，达到气水比最优化。保持处理效果的最优状态。更多还原

【Abstract】 As a kind of predominant technology, Ozone biologically Actived Carbon Method in Drinking water treatment has been extensively applied at home and aboard. In order to achieve purify water and decrease disinfect-outgrowth simultaneously, the quantity of ozone and the process of treatment must adapt to kinds of water quality. So it is very importance of optimization and control in this technology.In this paper, the characteristic of ozone and the mechanism of purify are introduced firstly. Based on advanced technology, this thesis bring forward the optimal scheme and set down general system-drawings and flow charts. Using STEP7-Micro software, we achieve the auto-control aim in drinking water treatment.In practice, the complexity and non-linaerity exit in the system of water treatment, so we apply Fuzzy Control in water treatment and design a kind of controller which structure can be altered according to the using-rate of ozone and the variety of water quality. We use single-chip as control hardware and an software to control the flux of valve , so we achieve the optimization of the treatment.更多还原