【正文】 rol the temperature in realtime, make the boiler fire box temperature in the set range. For burning control system, mainly maintaining the steam pressure、 burning economy and furnace pressure in a certain range. Constant pressure oil supply control system adopts PLC∕ Converter scheme. This design analyzes oil burning boiler’s control requirements, chooses the control scheme accord with the boiler’s control requirements. Finished the hardware circuit and control program design with S7200 PLC for the control center, and finished simulative debugging of program. The simulation and debugging results show that the design of control software can finish the control requirements of oil burning boiler. The system applies advanced siemens programmable and configuration software. This system is of simple structure, reliable operation. Key words: Oil Burning Boiler； PLC； Transducer； Automatic Control； Configuration Software黑龍江工程學(xué)院本科生畢業(yè)設(shè)計 目 錄 摘要 ...................................................................................................................................... Ⅰ Abstract ............................................................................................................................... Ⅱ 第 1 章 引言 ........................................................................................................................ 1 PLC 控制燃油鍋爐的目的和意義 .......................................................................... 1 PLC 控制燃油鍋爐的 研究 現(xiàn)狀及發(fā)展前景 ............................................................ 1 研究設(shè)想及方法 ....................................................................................................... 4 預(yù)期成果及意義 ....................................................................................................... 4 第 2 章 系統(tǒng)整體方案設(shè)計 ............................................................................................ 5 燃油鍋爐結(jié)構(gòu)分析 ................................................................................................... 5 燃油鍋爐工作過程 ................................................................................................... 5 燃油鍋爐控制系統(tǒng) ................................................................................................... 6 燃燒控制系統(tǒng) ................................................................................................ 6 水位控制系統(tǒng) ................................................................................................ 7 恒壓供油控制系統(tǒng) ........................................................................................ 7 爐溫 PID 控制系統(tǒng) ........................................................................................ 8 燃油鍋爐系統(tǒng)工藝 ................................................................................................... 8 燃油鍋爐熱工參數(shù)檢測 ........................................................................................... 9 燃油鍋爐的自動調(diào)節(jié)任務(wù) ..................................................................................... 10 系統(tǒng)整體控制方案 ................................................................................................. 11 本章小結(jié) ................................................................................................................. 12 第 3 章 控制系統(tǒng)硬件設(shè)計 .......................................................................................... 13 PLC 概述 .................................................................................................................. 13 PLC 的發(fā)展歷程 ........................................................................................... 13 PLC 的工作原理 ........................................................................................... 13 控制系統(tǒng)的 I/O 通道地址分配 ................................................................... 14 PLC 系統(tǒng)選型 ............................................................................................... 16 擴(kuò)展模塊選型 ......................................................................................................... 18 數(shù)字量輸出擴(kuò)展模塊 EM222 ..................................................................... 18 黑龍江工程學(xué)院本科生畢業(yè)設(shè)計 數(shù)字量輸入 /輸出擴(kuò)展模塊 EM223 ........................................................... 19 模擬量輸入 擴(kuò)展模塊 EM231 ..................................................................... 19 模擬量輸出擴(kuò)展模塊 EM232 ..................................................................... 20 模擬量輸入 /輸出擴(kuò)展模塊 EM235 ........................................................... 21 電機(jī)及驅(qū)動器選型與應(yīng)用設(shè)計 ............................................................................. 22 電機(jī) 及 油泵選型 .......................................................................................... 22 變頻器選型 .................................................................................................. 23 電機(jī)主電路設(shè)計 .......................................................................................... 23 檢測元件選型與應(yīng)用設(shè)計 ..................................................................................... 24 溫度傳感器選型 .......................................................................................... 24 壓力傳感器選型 .......................................................................................... 24 液位傳感器選型 .......................................................................................... 26 火焰檢測器選型 .......................................................................................... 26 檢測傳感器類開關(guān)選型 .............................................................................. 27 低壓電器選型 ......................................................................................................... 27 接觸器選型 .................................................................................................. 27 繼電器選型 .................................................................................................. 28 斷路器選型 ..................................