【正文】 , 畢業(yè)（設(shè)計(jì)）論文 75Kt/a燒堿蒸發(fā)工段工藝設(shè)計(jì) 畢業(yè)設(shè)計(jì) 目錄 I 目 錄 摘要 ................................................................................................................................. 1 概述 ................................................................................................................................. 3 ....................................................................................................................... 3 ......................................................................................................... 3 ..................................................................................................... 4 ................................................................................................................ 4 ........................................................................................................... 7 ......................................................................................................... 7 ......................................................................................................... 8 ......................................................................................................... 8 ......................................................................................................... 8 ......................................................................................................... 9 ................................................................................................................ 9 ......................................................................................................... 9 ................................................................................................... 10 第一效物料衡算 ............................................................................................ 11 ............................................................................................ 12 ............................................................................................ 13 ....................................................................................................... 14 估計(jì)各效二次蒸汽壓力 ................................................................................. 14 溶液中因溶質(zhì)濃度引起的溫度損失 ............................................................... 15 ....................................................................... 15 .................................................................... 15 ................................................................................................ 15 .............................................................................................................. 15 蒸發(fā)水量 .................................................................................................... 16 總的有效溫差及在各效中的分配 ................................................................... 17 .............................................................................................................. 17 ............................................................................................ 17 ............................................................................................ 22 ..................................................................................... 24畢業(yè)設(shè)計(jì) 目錄 II 計(jì)算各效加熱面積 ............................................................................................... 25 最終計(jì)算結(jié)果 ...................................................................................................... 26 4 蒸發(fā)裝置結(jié)構(gòu)計(jì)算 ....................................................................................................... 27 ............................................................................................ 27 ....................................................................................... 27 .................................................................................................. 27 ........................................................................................... 27 .................................................................................................. 28 ............................................................................................ 28 ................................................................................................... 29 .......................................................................................................... 33 ..................................................................................... 33 5 設(shè)備一覽表 ................................................................................................................. 34 設(shè)計(jì)評(píng)述 ........................................................................................................................ 35 參考文獻(xiàn) ........................................................................................................................ 36 致謝 ............................................................................................................................... 37 附 .................................................................................................................................. 38 畢業(yè)設(shè)計(jì) 摘要 1 摘 要 隔膜法電解制得的 11%的堿液，采用三效順流蒸發(fā)使堿液濃度達(dá)到 32%的要求。本設(shè)計(jì)通過對(duì)整個(gè)蒸發(fā)過程進(jìn)行總物料衡算，各效物料衡算，溫差損失計(jì)算，熱量衡算，并進(jìn)行多次迭代后達(dá)到一定的誤差要求后算得各效的傳熱面積。用物料計(jì)算的結(jié)果并綜合考慮能耗和總費(fèi)用等問題，對(duì)工藝過程進(jìn)行一定的改進(jìn)和優(yōu)化后，再對(duì)設(shè)備的主要工藝尺寸進(jìn)行計(jì)算，以達(dá)到設(shè)計(jì)的要求；對(duì)輔助設(shè)備進(jìn)行設(shè)計(jì)選型，選出適合的設(shè)備。最