【正文】 ................................................................. 1 水平熱虹 吸再沸器 ........................................................................................ 2 立式管側(cè)熱虹吸再沸器 ................................................................................ 3 立式殼側(cè)熱虹吸再沸器 ................................................................................ 3 強(qiáng)制流動(dòng)再沸器 ............................................................................................ 4 再沸器存在的問題及其解決 ................................................................................... 6 腐蝕泄漏問題 ................................................................................................ 6 振動(dòng)失效問題 ................................................................................................ 8 焊接問題 ........................................................................................................ 9 再沸器優(yōu)化設(shè)計(jì) ..................................................................................................... 10 論文結(jié)構(gòu) ................................................................................................................. 13 2 再沸器工藝設(shè)計(jì) ................................................................................................................ 14 設(shè)計(jì)背景 ................................................................................................................. 14 再沸器選型 ............................................................................................................. 16 工藝設(shè)計(jì) ................................................................................................................. 17 設(shè)計(jì)任務(wù)與設(shè)計(jì)條件 .................................................................................. 17 估算設(shè)備尺寸 .............................................................................................. 17 傳熱系數(shù)的校核 .......................................................................................... 20 阻力校核 ...................................................................................................... 22 工藝設(shè)計(jì)結(jié)果 ......................................................................................................... 25 3 再沸器結(jié)構(gòu)與強(qiáng)度設(shè)計(jì) .................................................................................................... 27 筒體 ......................................................................................................................... 27 大端壁厚 ...................................................................................................... 27 錐殼壁厚 ...................................................................................................... 27 封頭 .............................................................................................................. 28 管箱 ......................................................................................................................... 28 揚(yáng)子 30 萬 t/年乙烯裝置丙烯精餾塔再沸器設(shè)計(jì) IV 短節(jié) .............................................................................................................. 28 封頭 .............................................................................................................. 28 結(jié)構(gòu)尺寸 ...................................................................................................... 30 補(bǔ)強(qiáng) ......................................................................................................................... 30 管箱接管 ...................................................................................................... 30 殼體進(jìn)料接管 .............................................................................................. 31 殼體氣相出口接管 ...................................................................................... 32 殼體液相出口接管 ...................................................................................... 32 固定管板 ................................................................................................................. 33 計(jì)算各參數(shù) .................................................................................................. 33 確定管板設(shè)計(jì)壓力 ...................................................................................... 33 計(jì)算無量綱數(shù) .............................................................................................. 34 計(jì)算管板厚度 .............................................................................................. 34 校核軸向應(yīng)力 .............................................................................................. 35 校核拉脫力 .................................................................................................. 36 浮頭 ......................................................................................................................... 36 浮動(dòng)管板計(jì)算 .............................................................................................. 36 浮頭蓋計(jì)算 .................................................................................................. 38 浮頭計(jì)算結(jié)果 .............................................................................................. 41 折流板，拉桿，滑道 ............................................................................................. 42 振動(dòng) ......................................................................................................................... 42 支座 ......................................................................................................................... 44 強(qiáng)度設(shè)計(jì)結(jié)果 ......................................................................................................... 45 4 個(gè)人重點(diǎn) —設(shè)備費(fèi)用與經(jīng)濟(jì)性分析 .................................................................................. 46 設(shè)備費(fèi)用估算 ......................................................................................................... 46 操作費(fèi)用評(píng)估 .......................................................................