水塔水位自動(dòng)控制的設(shè)計(jì)

相關(guān)論文：水塔水位自動(dòng)控制裝置 基于PLC水塔水位控制的設(shè)計(jì) 基于PLC的水塔水位控制系統(tǒng)設(shè)計(jì)

 摘    要
 
 供水是一個(gè)關(guān)系國(guó)計(jì)民生的重要產(chǎn)業(yè)。隨著社會(huì)的發(fā)展和人民生活水平的提高，對(duì)城市供水提出了更高的要求，要滿足及時(shí)、準(zhǔn)確、安全保證充足供水，如果仍然沿用人工方式，勞動(dòng)強(qiáng)度大，工作效率低，安全性難以保障，為此必須進(jìn)行水塔水位控制自動(dòng)化系統(tǒng)的改造。可編程控制器( PLC) 因其高可靠性和較高的性價(jià)比在工業(yè)控制中得到廣泛的應(yīng)用。
 本文針對(duì)目前比較流行的控制技術(shù)，利用PLC和超聲波液位傳感器U9ULS系列，電子設(shè)備放在鑄鋁的NEMA 4/NEMA 7防爆且防水的殼體中。構(gòu)成了水塔水位恒的控制系統(tǒng)。改造后的水塔水位自控系統(tǒng)，實(shí)現(xiàn)水塔水位自動(dòng)控制系統(tǒng)，遠(yuǎn)程監(jiān)控，實(shí)現(xiàn)無(wú)人值守。
關(guān)鍵詞: 可編程邏輯控制器（PLC）  水塔水位 自動(dòng)控制

 
Abstract
 
 Water supply is a major industry involving the interests of the state and the people. With development of society and the improvement of the people's livelihood, city water supply has been brought forward a higher request. It needed to be timely , accurate and safely to plentifully conduct water supply. If we still continue to use a way of the man-power, the intensity of labor are high , availability is low and the  security is difficult to ensure .We  must carry out water tower water level under the control of automatic system reforming for this purpose . Programmable Logic Controller (PLC) is applied broadly in industrial control because of high reliability and higher nature price.
 The main body of this paper on the control technology is aimed at being popular for at present comparatively, which makes the using of PLC and the sensor to compose water tower control system of permanent water level. Water tower control system after being reformed have realized water tower water level auto-controlling system , long-range supervisory control, and nobody's value guards realization.
 
 Key words：Programmable Logic Controller.   water pool water lever.  automatically controls

 目錄
1 水塔水位自動(dòng)控制系統(tǒng)的現(xiàn)狀和發(fā)展 1
1.1  水塔供水的發(fā)展 1
1.2傳感器和PLC的應(yīng)用 1
2 水塔水位自動(dòng)控制系統(tǒng)的組成 2
2.1水塔系統(tǒng)構(gòu)成及其控制要求 2
2.2 水塔系統(tǒng)框圖 3
3 水塔水位自動(dòng)控制系統(tǒng)設(shè)計(jì) 4
3.1水泵電動(dòng)機(jī)控制電路的設(shè)計(jì) 4
3.2水位傳感器的選擇 5
4  自動(dòng)控制系統(tǒng)的軟件設(shè)計(jì) 7
4.1 可編程序控制器(PLC)簡(jiǎn)介 7
4. 2  PLC工作原理 7
4.2.1 掃描的概念 7
4.2.2  PLC的工作過程 7
4. 3  PLC的編程語(yǔ)言-梯形圖 9
4.4  編程軟件的簡(jiǎn)介和梯形圖的基本繪制規(guī)則 10
4.5  水塔水位自動(dòng)控制系統(tǒng)的軟件設(shè)計(jì) 13
4.6  PLC控制系統(tǒng)要求說明 14
5  結(jié)束語(yǔ)（系統(tǒng)總結(jié)分析） 17
5.1 系統(tǒng)的優(yōu)點(diǎn) 17
5.2 結(jié)束語(yǔ) 17
參考文獻(xiàn) 19
致  謝 20