基于plc的污水處理系統(tǒng)

電氣自動(dòng)化論文編號(hào):ZD040        字?jǐn)?shù):19995,頁(yè)數(shù):36  

目 錄
引言 1
1 污水處理工藝流程..................................................1
1.1工藝流程圖.......................................................1
1.2 對(duì)工藝流程的闡述 ...............................................2
1.3 主要設(shè)備的組成及控制方式........................................3
1.3.1主要設(shè)備.......................................................3
1.3.2設(shè)備控制方式 ..................................................3
1.4　粗格柵、細(xì)格柵、提升泵房的設(shè)備控制.............................4
1.5 沉砂池、生化池、沉淀池、污泥回流泵房和鼓風(fēng)機(jī)房的設(shè)備控制 .......4
1.6 脫水機(jī)房........................................................5
1.7 PLC控制系統(tǒng) ....................................................5
1.7.1 PLC控制系統(tǒng)的基本構(gòu)成及功能 ..................................6
1.7.2  網(wǎng)絡(luò)結(jié)構(gòu).................................................... 6
1.7.3 上位機(jī)組態(tài)功能................................................6
1.8  系統(tǒng)構(gòu)成及其布局 ..............................................7
2 污水處理中的PLC...................................................8
2.1 概述............................................................8
2.1.1 設(shè)計(jì)范圍 .................................................... 8
2.1.2 PLC設(shè)計(jì)綜述 ..................................................8
2.2 PLC在污水處理中的部分運(yùn)用 ......................................9
2.2.1中央控制室.................................................... 9
2.2.2 控制網(wǎng)絡(luò)系統(tǒng) ................................................10
2.2.3 分現(xiàn)場(chǎng)生產(chǎn)過(guò)程PLC控制系統(tǒng)....................................11
2.2.4  廠級(jí)管理PLC系統(tǒng).............................................14
2.3  PLC設(shè)備及儀表選型 ............................................14
2.4  儀表的動(dòng)力要求................................................17
2.5主要PLC設(shè)備表及其說(shuō)明 ..........................................17
2.6   PLC具體配置情況 .............................................19
2.7  監(jiān)控系統(tǒng)的軟件部分............................................21
3  PLC設(shè)計(jì).........................................................21
3.1  PLC簡(jiǎn)介.......................................................21
3.2 PLC構(gòu)成的控制系統(tǒng)..............................................22
3.3  控制軟件 .................................................... 25
3.4  對(duì)污水處理系統(tǒng)中兩個(gè)PLC子站的控制程序進(jìn)行設(shè)計(jì)................ 27
3.4.1對(duì)5#PLC子站皮帶運(yùn)輸機(jī)的控制程序設(shè)計(jì) ..........................27
3.5  系統(tǒng)的性能分析��..............................................31
3.6  PLC設(shè)計(jì)小結(jié)...................................................32
4  總結(jié) .......................................................... 33
參考文獻(xiàn).........................................................  33
致謝 ............................................................. 34
附錄 .................................................... .........34

摘要: 本文主要介紹了 PLC在城市污水處理中的具體應(yīng)用，系統(tǒng)介紹了城市污水處理工藝流程以及基于SIEMENS的S7—400 系列PLC的污水處理實(shí)施方案，介紹了城市污水處理廠監(jiān)空系統(tǒng)數(shù)據(jù)采集的方法。為了提高污水處理廠的運(yùn)行管理水平， PLC是該系統(tǒng)的重要組成單元，各單元按一定拓?fù)浣Y(jié)構(gòu)互連構(gòu)成污水處理廠的控制系統(tǒng)。研究結(jié)果表明，該系統(tǒng)不僅具有較強(qiáng)的并行協(xié)調(diào)處理能力，而且具有高可靠性、靈活性和可擴(kuò)展性，以及高速處理能力等優(yōu)點(diǎn)。結(jié)合某污水處理廠自動(dòng)化控制系統(tǒng)的運(yùn)行情況，介紹污水處理廠的設(shè)備組成、自動(dòng)化控制方式和PLC各工作站的功能、網(wǎng)絡(luò)構(gòu)成在污水處理中的應(yīng)用，總結(jié)自動(dòng)化控制系統(tǒng)對(duì)提高生產(chǎn)效率、減少現(xiàn)場(chǎng)操作人員、提高安全性發(fā)揮的良好效果。��

關(guān)鍵詞 污水處理；自動(dòng)化控制系統(tǒng)；PLC；硬件配置；軟件設(shè)計(jì)。

Abstract

 this article mainly introduced PLC in the urban sewage processing concrete application, the system introduced the urban sewage processing technical process as well as based on SIEMENS S7-400 the series PLC sewage treatment implementation plan, introduced the Urban sewage treatment plant supervises the spatial system data acquisition the method. In order to enhance the Sewage treatment plant the operational guidance level, PLC is this system's important composition unit, various units according to certain topology interconnection constitution Sewage treatment plant control system. The findings indicated that this system not only has the strong parallel coordinated handling ability, and has the redundant reliability, the flexibility and the extendibility, as well as merits and so on high speed handling ability. Unifies some Sewage treatment plant automation control system's operational aspect, introduced that the Sewage treatment plant the equipment composition, the automation control mode and the PLC various workstations' function, the network constitution in sewage treatment's application, summarize the automation control system to raise the production efficiency, to reduce the site operators, to enhance the secure display the good results.

key word sewage treatment; Automation control system; PLC; Hardware disposition; Software design.