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1、目錄之中。機電工程學院課程設(shè)計說明書設(shè)計題目:鍋爐車間輸煤機組控制系統(tǒng)設(shè)計學生姓名：學號：20094805專業(yè)班級：機制F09指導教師：2012年12月13日內(nèi)文摘要本設(shè)計首先闡述了鍋爐自動輸煤系統(tǒng)的基本構(gòu)成及特點，然后通過對基于繼電器鍋爐輸煤系統(tǒng)和基于PLC的鍋爐輸煤系統(tǒng)對比論證，根據(jù)控制要求，本設(shè)計采用PLC控制，實現(xiàn)自動化控制。在硬件方面，本文著重對PLC、繼電器、電動機等選型進行了設(shè)計，同時給出了各高級單元的使用及設(shè)定情況；在軟件方面，提供了原理圖、接線圖和梯形圖。除此之外，也充分考慮了實際應用中的要求，設(shè)計時考慮到了成本、功耗、安全性、穩(wěn)定性、等諸多問題，具有一定的
2、合理性和可行性。用PLC輸煤程控系統(tǒng)，不但實現(xiàn)了設(shè)備運行的自動化管理和監(jiān)控，提高了系統(tǒng)的可靠性和安全性，而且改善了工作環(huán)境，提高了企業(yè)經(jīng)濟效益和工作效率。因此PLC電氣控制系統(tǒng)具有一定的工程應用和推廣價值。PLC不僅能實現(xiàn)自動化控制，還具有快速響應，便于維修等諸多特點，比一般的繼電器接觸器控制系統(tǒng)優(yōu)越了很多，而且單機運行時都有音響提示，因此安全性也較好，程序設(shè)計也不是十分復雜。關(guān)鍵詞：鍋爐自動輸煤系統(tǒng)；PLC；自動化；可靠性目錄第1章引言······················································11.1設(shè)計內(nèi)容及要求·····
3、···········································11.2輸煤系統(tǒng)簡介··················································21.3PLC簡介······················································3第2章PLC控制系統(tǒng)設(shè)計········································42.1硬件系統(tǒng)設(shè)計··················································42.1.1控制系統(tǒng)主電
4、路圖設(shè)計······································42.1.2電器元件的選擇············································52.2軟件系統(tǒng)設(shè)計··················································632.2.1I/O地址分配表············································62.2.2PLC控制電路接線圖········································82.3梯形圖··········
5、··············································82.4語句表·······················································312.5系統(tǒng)調(diào)試·····················································36設(shè)計總結(jié)·························································37謝辭······················································
6、········38參考文獻·························································393第1章引言1.1設(shè)計內(nèi)容及要求本課程設(shè)計任務主要是鍋爐車間輸煤機組系統(tǒng)的設(shè)計，有多個電動機帶動，具體內(nèi)容如下:輸煤機組控控制系統(tǒng)示意圖如圖1-1所示。圖1-1輸煤機組示控制系統(tǒng)意圖輸煤機組的拖動系統(tǒng)由6臺三相異步電動機M1～M6和一臺磁選料器YA組成。SA1為手動/自動轉(zhuǎn)換開關(guān)，SB1和SB2為自動開車/停車按鈕，SB3為事故緊急停車按鈕，SB4～SB9為6個控制按鈕。HA為開車/停車時訊響器，提示在輸煤機組附近的工作人員物煤機準
7、備起動請注意安全。HL1～HL6為Ml～M6電動機運行指示，HL7為手動運行指示，HL8為緊急停車指示，HL9為系統(tǒng)運行正常指示，HL10為系統(tǒng)故障指示。輸煤機組控制要求如下1、手動開車/停車功能?SA1手柄指向左45°時，接點SA1-1接通，通過SB4～SB9控制按鈕，對輸煤機組單臺設(shè)備獨立調(diào)試與維護使用，任何一臺單機開車/停車時都有音響提示，保證檢修和調(diào)試時人身和設(shè)備安全。2、自動開車/停車功能?SA1手柄指向右45°時，接點SA1-2接通，輸煤機組自動運行。1)正常開車?按下自動開車按鈕SB1，音
