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板式換熱器課程設(shè)計(jì)(文件)

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【正文】 ..................................................................................6 ( 2)板型的選擇 ....................................................................................................................................6 ( 3)單片面積的選擇 ............................................................................................................................6 ( 4)流速的選擇 ....................................................................................................................................7 ( 5)流程的選擇 ....................................................................................................................................7 ( 6)流向的選擇 ....................................................................................................................................7 ( 7)流道數(shù)的選擇 ................................................................................................................................8 二、工藝流程簡圖 ....................................................................................................................................................8 三、工藝計(jì)算和主題設(shè)備設(shè) 計(jì) ................................................................................................................................9 確定物性數(shù)據(jù) ....................................................................... 9 1 熱負(fù)荷 ............................................................................. 9 2 平均溫差 ........................................................................... 9 3 定性溫度下物性數(shù)據(jù) ................................................................ 10 4 初估換熱面積及初選板型 ............................................................. 10 5 核算總傳熱系數(shù) ..................................................................... 12 6 傳熱面積 .......................................................................... 12 7 壓差計(jì)算 .......................................................................... 12 四、設(shè)計(jì)結(jié)果一覽表 ..................................................................... 13 五、附圖 ............................................................................... 15 六、 輔助設(shè)備的選擇 ...................................
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