本文選題：污水處理工藝 + PLC��； 參考：《湖南大學(xué)》2014年碩士論文

【摘要】：水資源、水環(huán)境是人類生存的基礎(chǔ)。隨著國家城市化、工業(yè)化的快速發(fā)展，大量生活廢水和工業(yè)廢水的排放,導(dǎo)致了我國現(xiàn)有水源水質(zhì)急劇下降，水體污染日益嚴重。為了保證我國經(jīng)濟的可持續(xù)發(fā)展，污水處理已經(jīng)成為城市建設(shè)中不可缺少的配套措施。近年來，隨著人們對水環(huán)境保護的關(guān)注和需求不斷增強，污水處理過程自動化程度的不斷提高，大量的先進控制技術(shù)和設(shè)備被運用到了對污水處理過程來，為了提高污水處理的效率以及經(jīng)濟效益，設(shè)計一套有效的監(jiān)控系統(tǒng)十分必要。 論文以霍利威爾公司的Allen-Bradley品牌PLC作為平臺，通過一個現(xiàn)實的工程案例，介紹了PLC控制系統(tǒng)在污水治理工藝中的應(yīng)用。在平臺中，以PLC為控制器，結(jié)合各種在線儀表，完成對污水水質(zhì)（如：PH值、COD值）的檢測，根據(jù)污水處理過程的特點以及設(shè)備控制要求完成了對現(xiàn)場設(shè)備的控制；工作人員通過監(jiān)控系統(tǒng)可以在遠程控制模式下實現(xiàn)對污水廠的監(jiān)控，同時系統(tǒng)還設(shè)計報表功能，供工作人員后期分析。一般來說，污水處理過程存在大時滯、非線性、強干擾等特點，很難對污水處理過程建立精確模型進行控制。本案例通過分析污水處理過程機理，同時根據(jù)實際應(yīng)用中的污水處理的各工藝環(huán)節(jié)設(shè)計了污水處理控制系統(tǒng)的整體的DCS結(jié)構(gòu)及通訊網(wǎng)絡(luò)層次，并對重點的工藝處理環(huán)節(jié)有詳細的程序及控制說明。 設(shè)計的污水處理自控系統(tǒng)可以通過中央監(jiān)控系統(tǒng)的管理層和PLC控制站的現(xiàn)場層實現(xiàn)完整的污水處理過程,并完成整個污水處理廠全工藝流程的監(jiān)控和調(diào)度管理;在控制效果上，，精確性、便捷性、兼容性這幾方面都得以實現(xiàn)并達到了預(yù)期的目標。因此，本文對污水處理控制系統(tǒng)有一定的現(xiàn)實意義。
[Abstract]:Water resources, water environment is the basis of human survival. With the rapid development of urbanization and industrialization, a large number of domestic wastewater and industrial wastewater discharge, resulting in a sharp decline in the existing water quality, water pollution is becoming more and more serious. In order to ensure the sustainable development of China's economy, sewage treatment has become an indispensable supporting measure in urban construction. In recent years, with the increasing attention and demand for water environment protection and the increasing degree of automation of sewage treatment process, a large number of advanced control technologies and equipment have been applied to wastewater treatment process. In order to improve the efficiency and economic benefit of sewage treatment, it is necessary to design an effective monitoring system. This paper takes Allen-Bradley brand PLC of Holywell Company as the platform, and introduces the application of PLC control system in sewage treatment process through a practical engineering case. In the platform, PLC is used as controller, combined with various on-line instruments, to complete the detection of wastewater quality (such as the value of PLC). According to the characteristics of sewage treatment process and the requirements of equipment control, the control of field equipment is completed. The staff can monitor and control the sewage plant in the remote control mode through the monitoring system. At the same time, the system also designs the report form function for the staff to analyze in the later stage. Generally speaking, the process of sewage treatment has the characteristics of large delay, nonlinear and strong disturbance, so it is difficult to establish an accurate model for the process of sewage treatment. Through analyzing the mechanism of sewage treatment process, the paper designs the whole DCS structure and communication network level of sewage treatment control system according to the process of sewage treatment in practice. And the key process process has detailed procedures and control instructions. The designed sewage treatment automatic control system can realize the complete sewage treatment process through the management of the central monitoring system and the field layer of the PLC control station, and complete the monitoring and dispatching management of the whole process flow of the sewage treatment plant. Accuracy, convenience and compatibility have been achieved and the desired goals have been achieved. Therefore, this paper has certain realistic significance to the sewage treatment control system.
【學(xué)位授予單位】：湖南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：X703;TP273

【參考文獻】

相關(guān)期刊論文 前9條

1 王文玲,趙揚;全球污水處理設(shè)備市場分析與展望[J];過濾與分離;1999年03期

2 杜清珍,趙訓(xùn)坡,李洋;PLC變頻調(diào)速系統(tǒng)應(yīng)用研究[J];工業(yè)儀表與自動化裝置;2001年06期

3 金鼎五;動態(tài)膜濾技術(shù)的研究動向[J];化學(xué)工程;1992年02期

4 蓋宇;應(yīng)用于污水處理站的模糊自適應(yīng)PID速度控制系統(tǒng)[J];吉林化工學(xué)院學(xué)報;2005年04期

5 白新莊;PLC的選型探討[J];石油化工自動化;2005年05期

6 袁媛;姚永衛(wèi);殷忠敏;張然;孟鳳果;方紅彬;李耀智;;污水處理廠控制系統(tǒng)改造的應(yīng)用性研究[J];黑龍江科學(xué);2014年01期

7 涂兆林;我國城市污水處理現(xiàn)狀與發(fā)展對策[J];市政技術(shù);1997年02期

8 ;污水處理——自動化升級正當時[J];自動化博覽;2008年05期

9 楊豐,王宏偉,鄭摯;PLC在反滲透工藝控制系統(tǒng)中的應(yīng)用[J];黑龍江自動化技術(shù)與應(yīng)用;1999年02期

相關(guān)碩士學(xué)位論文 前4條

1 陳國章;污水處理自動監(jiān)控系統(tǒng)設(shè)計與研究[D];山東大學(xué);2011年

2 王峰;城市地下水質(zhì)安全監(jiān)測系統(tǒng)的設(shè)計與實現(xiàn)[D];大連理工大學(xué);2008年

3 張鐵橋;氧化溝污水處理監(jiān)控系統(tǒng)應(yīng)用研究[D];中南大學(xué);2009年

4 崔凱;涂裝車間流水線控制方法研究[D];青島科技大學(xué);2012年

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