MVR-FF<\/span>降膜蒸發器<\/span><\/h2>

工作原理<\/span><\/span><\/b><\/p>

選用降膜形式蒸發器作為主蒸發單元,<\/span>以蒸發濃縮為操作目的。蒸發過程中稀物料從蒸發器頂部加入，經液體分布裝置均勻分布到各換熱管內，被殼程蒸汽加熱至沸騰汽化，物料憑借重力和下行二次汽的帶動作用沿換熱管內壁呈膜狀流下。在下流過程中，產生的二次蒸汽與濃縮液共同進入蒸發室進行氣液分離，濃縮液連續排離系統。分離后的二次蒸汽進入壓縮機，經壓縮后二次蒸汽品位提升，被作為熱源送入蒸發器殼程。殼程蒸汽放熱后冷凝為水排離系統。<\/span><\/span><\/p>

產品特點<\/span><\/span><\/b><\/p>

v  <\/span><\/span><\/span>膜狀流動的換熱過程，傳熱系數顯著高于滿管流蒸發器。<\/span><\/span><\/p>

v  <\/span><\/span><\/span>溫差損失小，在小溫差下仍能保證較高的傳熱系數，所需壓縮機壓比更小。<\/span><\/span><\/p>

v  <\/span><\/span><\/span>降膜蒸發器的開車、停車、操作簡單快捷，溫度響應靈敏。<\/span><\/span><\/p>

v  <\/span><\/span><\/span>蒸發器內的滯留物料量非常小，開車時間短，停車后可迅速將蒸發器內的物料排空。<\/span><\/span><\/p>

v  <\/span><\/span><\/span>物料被加熱時間短，可保證熱敏性物料的優良品質。<\/span><\/span><\/p>

應用范圍<\/span><\/span><\/b><\/p>

v  <\/span><\/span><\/span>用于低到高蒸發量的濃縮場合。<\/span><\/span><\/p>

v  <\/span><\/span><\/span>用于蒸發過程無固相產生或很少量固相的蒸發濃縮過程。<\/span><\/span><\/p>

v  <\/span><\/span><\/span>石化、制藥、果汁、飲料、乳品無固相濃縮。<\/span><\/span><\/p>

v  <\/span><\/span><\/span>蒸發結晶工藝無固相預濃縮。<\/span><\/span><\/p>

v  <\/span><\/span><\/span>含鹽廢水零排放的前期預濃縮。<\/span><\/p>

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文章來源：河北諾達化工設備有限公司<\/span><\/p>

公司網址：www.ndhgsb.com<\/span><\/p>

     www.hbndzb.com<\/span><\/p>

咨詢電話：0311-85850678<\/span><\/p>

企業郵箱：ndhgsb@163.com
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