【正文】 著結(jié)合汽車電子相關(guān)知識對整個系統(tǒng)進行電控化以達(dá)到最優(yōu)化工作，這牽扯到大量的傳感器應(yīng)用知識，參數(shù)匯總計算，以及單片機技術(shù)。s national conditions and design requirements, the filter body use inexpensive and practical synthesis of cylindrical roll of barbed wire, recycled renewable heating system selected blowback, liquefied petroleum gas from the heating source (LPG). Knowledge of fluid dynamics calculations bined length and tube diameter and other dimensions. Regeneration System Selection mature gas burners and blowers, at the right sizes and filtering devices for assembly. Then bine the knowledge of the entire automotive electronic control systems in order to achieve optimal work, which involves a large number of sensor applications knowledge, parameter summary calculations, and microcontroller technology. Finally, this paper also designed several experiments to the design of the device to be optimized. Key words： Diesel particulate filter (DPF) Filter body Blowback heating Liquefied petroleum gas (LPG) Exhaust Pipe 陜西理工學(xué)院畢業(yè)設(shè)計論文 I 目 錄 1 緒論 ............................................................................................................... 1 2 機顆粒物的組成及生成機理 ........................................................................ 2 3 油機顆粒物排放后處理技術(shù)介紹 ................................................................. 3 柴油機氧化催化器（ DOC） .................................................................................. 3 柴 油機微粒捕捉器（ DPF） ................................................................................... 3 催化再生 ..................................................................................................... 4 噴油助燃再生 ............................................................................................. 5 電加熱再生 ................................................................................................. 5 反吹再生 ..................................................................................................... 5 微波加熱再生 ............................................................................................. 6 連續(xù)再生 ..................................................................................................... 6 4 固定式反吹再生 DPF 總體設(shè)計 ................................................................... 7 過濾體的選擇 ........................................................................................................... 7 再生系統(tǒng)各裝置的選擇 ........................................................................................... 7 再生系統(tǒng)工作過程 ................................................................................................... 8 5 各主要零件設(shè)計 .......................................................................................... 14 過濾體總成設(shè)計 ..................................................................................................... 14 過濾體尺寸設(shè)計 ....................................................................................... 14 過濾體殼體的選擇 ................................................................................... 14 排氣管設(shè)計 ............................................................................................... 14 旁路系統(tǒng)的設(shè)計 ..................................................................................................... 15 旁路管尺寸設(shè)計 ....................................................................................... 15 旁路單向閥的設(shè)計 ................................................................................... 16 旁路消聲器設(shè)計 ....................................................................................... 16 反吹風(fēng)管設(shè)計校核 ................................................................................................. 18 6 燃燒器和鼓風(fēng)機選擇 .................................................................................. 22 燃燒器選擇和說明 ................................................................................................. 22 燃燒器注意事項 ...................................................................................................... 22 鼓風(fēng)機的選擇 ......................................................................................................... 26 7 安裝后試驗方法 ............................................ 27 實驗器材 ................................................................................................................. 27 陜西理工學(xué)院畢業(yè)設(shè)計論文 II 實驗方法 ................................................................................................................ 27 8 多空泡沫金屬新型過濾材料的介紹 ........................................................... 29 泡沫金屬 材料和陶瓷材料的對比分析 ................................................................ 29 多孔泡沫金屬炭煙過濾機理分析 ........................................................................ 29 9 幾種過濾體分析方法 .................................................................................. 30 HappelKuwabara 單元模塊分析 ......................................................................... 30 過濾體效率測試 .................................................................................................... 30 過濾體的改進 ........................................................................................................ 31 10 關(guān)于我國未來 DPF 的應(yīng)用思考 ............................................................... 32 致謝 ................................................................................................................. 33 參考文獻 ......................................................................................................... 34 陜西理工學(xué)院畢業(yè)設(shè)計論文 第 1 頁 共 35 頁 1 緒論 近年來，柴油機在汽車中的使用日益廣泛，轎車柴油機化也將是未汽車行業(yè)的發(fā)展趨勢，因為它與汽油機相比， 具有良好的經(jīng)濟性 、 動力性和可靠性，以及較高的熱效率和較低的 CO、 HC 排放，但較高的