【正文】 爐工作原理 ............................................................................................. 2 鍋爐基本特性 ............................................................................................................... 2 鍋爐規(guī) 范 ............................................................................................................. 3 燃料特性 ............................................................................................................. 3 石灰石特性 ......................................................................................................... 3 管子特性 ............................................................................................................. 3 主要經(jīng)濟(jì)技術(shù)指標(biāo) ............................................................................................. 4 鍋爐基本尺寸 ..................................................................................................... 4 方案論證 ...................................................................................................................... 4 鍋爐結(jié)構(gòu)簡介 ............................................................................................................... 6 鍋筒及爐內(nèi)設(shè)備 ................................................................................................. 6 水冷壁 ................................................................................................................. 6 燃燒設(shè)備 ............................................................................................................. 7 過熱器 ................................................................................................................. 9 省煤器 ................................................................................................................. 9 空氣預(yù)熱器 ....................................................................................................... 10 鋼架及平臺樓梯 ............................................................................................... 10 爐墻及保溫結(jié)構(gòu) ............................................................................................... 10 鍋爐閥門儀表及管道 ........................................................................................ 11 本章小結(jié) .................................................................................................................... 11 第 3 章 熱力計(jì)算 ..................................................................................................................... 12 設(shè)計(jì)任務(wù) ..................................................................................................................... 12 燃料特性 ..................................................................................................................... 12 輔助計(jì)算 ..................................................................................................................... 12 燃燒脫硫計(jì)算 ................................................................................................... 12 脫硫工況時(shí)燃燒產(chǎn)物平均特性計(jì)算 ................................................................. 16 鍋爐熱平衡及燃燒和石灰石消耗量計(jì)算 .......................................................... 19 xxxx 學(xué)院本科畢業(yè)設(shè)計(jì)說明書 IV 爐膛設(shè)計(jì)及傳熱計(jì)算 .................................................................................................. 20 爐膛結(jié)構(gòu)特性計(jì)算 ............................................................................................ 20 爐膛傳熱計(jì)算 ................................................................................................... 21 高溫過熱器設(shè)計(jì)及傳熱計(jì)算 ....................................................................................... 24 高溫過熱器結(jié)構(gòu)計(jì)算 ........................................................................................ 24 高溫過熱器傳熱計(jì)算 ........................................................................................ 25 低溫過熱器設(shè)計(jì)及傳熱計(jì)算 ....................................................................................... 27 低溫過熱器結(jié)構(gòu)計(jì)算 ........................................................................................ 27 低溫過熱器傳熱計(jì)算 ........................................................................................ 27 省煤器 設(shè)計(jì)及傳熱計(jì) .................................................................................................. 28 省煤器結(jié)構(gòu)計(jì)算 ............................................................................................... 28 省煤器傳熱計(jì)算 ............................................................................................... 29 空氣預(yù)熱器設(shè)計(jì)計(jì)算 .................................................................................................. 30 空氣預(yù)熱器結(jié)構(gòu)計(jì)算 ........................................................................................ 30 空氣預(yù)熱器傳熱計(jì)算 ........................................................................................ 31 熱力計(jì)算結(jié)果匯總表 .................................................................................................. 32 本章小結(jié) ................................................................................................................... 33 第 4 章 強(qiáng)度計(jì)算 ..................................................................................................................... 33 鍋筒強(qiáng)度校核計(jì)算 ...................................................................................................... 34 筒體最大未加強(qiáng)孔直徑計(jì)算 ............................................................................ 35 孔加強(qiáng)的計(jì)算 ................................................................................................... 35 相鄰兩孔互不影響最小節(jié)距計(jì)算 .................................................................... 36 孔橋減弱系數(shù)計(jì)算 ........................................................................................... 37 鍋筒筒體允許最小減弱系數(shù)計(jì)