【正文】 安徽工程大學(xué)機(jī)電學(xué)院畢業(yè)設(shè)計(jì)I基于 PLC 的水廠濾池自動(dòng)控制系統(tǒng)設(shè)計(jì)摘 要水是生命之源，供水自然關(guān)系到國(guó)計(jì)民生的重要地步，供水不僅要滿足工業(yè)用水，還要滿足生活用水,農(nóng)業(yè)用水等等，其中最為重要的是生活用水，各城市的大中小水廠是生活用水的直接來(lái)源，水廠濾池的好壞不僅影響出水的質(zhì)量，更關(guān)系到人民的生命安全，所以水廠濾池在供水中起到很重要的作用，以前的水廠濾池大都使用人工控制，不僅費(fèi)力，而且勞動(dòng)強(qiáng)度大，勞動(dòng)效率低，出水的質(zhì)量也很難保證，因此，對(duì)水廠濾池提出自動(dòng)化改造已經(jīng)是很有必要的事情了。在設(shè)計(jì)之初，從網(wǎng)絡(luò)上查閱了當(dāng)前水廠濾池普遍采用的過(guò)濾方法，以及存在的不足，但是每一種方法都不是十全十美的，只有通過(guò)不斷的改進(jìn)，才能逐步達(dá)到最優(yōu)化設(shè)計(jì)。本設(shè)計(jì)從水廠濾池控制系統(tǒng)要求的最低控制要求和控制工藝出發(fā)，設(shè)計(jì)出了基于PLC 的水廠濾池控制系統(tǒng)，并且在濾池正常過(guò)濾的過(guò)程中，為了實(shí)現(xiàn)恒水位過(guò)濾，設(shè)計(jì)了以出水流量為控制參數(shù)的濾池液位 PID 控制系統(tǒng)。而在系統(tǒng)接收到反沖洗信號(hào)時(shí)，本系統(tǒng)在設(shè)計(jì)上就主控 PLC 如何更好的與現(xiàn)場(chǎng) PLC 協(xié)調(diào)控制濾池的反沖洗方案進(jìn)行了對(duì)比并且做了優(yōu)化，增強(qiáng)了控制思路的清晰性，達(dá)到了預(yù)期的控制效果。根據(jù)系統(tǒng)的控制要求，進(jìn)行了硬件設(shè)備的選型，設(shè)計(jì)了控制系統(tǒng)硬件配置圖、I/O 模塊接線圖，并編寫了實(shí)現(xiàn)控制算法的程序。關(guān)鍵詞：水廠濾池，PLC，自動(dòng)反沖洗，控制系統(tǒng)李濤：基于 PLC 的水廠濾池自動(dòng)控制系統(tǒng)設(shè)計(jì)IIThe Application of PLC in Waterworks Control System ABSTRACT Water is the source of life, water supply natural relations to the people39。s livelihood important point, water supply that not only meets industrial water, and also to meet the water for living, agricultural water and so on, of which the most important is the water for living, each city medium small waterworks is the direct source of the life in the water, water quality term of not only affects the quality of the water, the more relationship to people39。s life safety, so the water in the water in term plays very important role, most of the water before viewing using artificial control, not only arduous, and the intensity of labor, labor efficiency is low, the water quality also is very difficult to guarantee, therefore, viewing of water automation reconstruction has put forward is very be necessary things.......At the beginning of design, work from the current term of waterworks is generally used to filter method, and the deficiency, but each kind of method is not perfect, and only through continuous improvement, to gradually achieve the optimization design.This design from viewing a water control system minimum control requirements and control technology of the design based on PLC control system of waterworks ponds, and in the process of viewing a normal filter, in order to realize constant water level filtering, designed for the flow of water out of the liquid level control parameters for viewing the PID control system. And in the system to receive to reverse wash signal, this system in the design is how to better and PLC control the PLC coordinated control term of reverse wash scheme parison and optimization, strengthening the control of the idea of clarity, achieve the expected effect of to the system39。s control requirements, the hardware equipment selection, design the hardware of control system configuration chart, I/O modules the wiring diagram, and write to realize the control algorithm procedures.Keywords：Viewing waterworks, PLC, automatic reverse wash, the control system安徽工程大學(xué)機(jī)電學(xué)院畢業(yè)設(shè)計(jì)III目錄引 言 .................................................................................................................................... 1 第 1 章 緒論 .......................................................................................................................... 2 課題研究?jī)?nèi)容 .............................................................................................................................. 2 課題研究意義 .............................................................................................................................. 2 研究現(xiàn)狀 ....................................................................................................................................... 2 發(fā)展趨勢(shì) ....................................................................................................................................... 4 第 2 章 控制系統(tǒng)總體方案的設(shè)計(jì)系統(tǒng)的分析 .................................................................. 6 V 型濾池工藝過(guò)程 ...................................................................................................................... 6 工作過(guò)程 ....................................................................................................................................... 6 濾池控制系統(tǒng)的控制任務(wù)及其設(shè)計(jì) ..................................................................................... 8 第 3 章 系統(tǒng)總體方案的設(shè)計(jì) ............................................................................................ 10 濾池自控方案及總體結(jié)構(gòu)的實(shí)現(xiàn) ....................................................................................... 10 PID 控制算法的基本原理 ...................................................................................................... 10 現(xiàn)場(chǎng)控制器與反沖洗控制器的鏈接 ................................................................................... 15 第 4 章 濾池自動(dòng)控制所需的主要硬件設(shè)備 .................................................................... 18 設(shè)備清單 ...................................................................................................................................... 18 PLC 的概述 ................................................................................................................................. 18 I/O 模塊的基本參數(shù)配置 ...................................................................................................... 21 傳感器和執(zhí)行器的選擇 .......................................................................................................... 22 系統(tǒng)的硬件配置及 I/O 連接圖 ............................................................................................ 26 第 5 章 系統(tǒng)的軟件設(shè)計(jì) .................................................................................................... 29 軟件總體方案的設(shè)計(jì) .............................................................................................................. 29 控制參數(shù)整定 ............................................................................................................................ 31 控制方案程序 ............................................................................................................................ 33 第 6 章 組態(tài)監(jiān)控的設(shè)計(jì) ..........................................................