大型實驗室凍干機是實驗(yan)室(shi)真空冷凍干(gan)(gan)燥(zao)(zao)的(de)一種(zhong)裝(zhuang)置，叫(jiao)做(zuo)真空冷凍干(gan)(gan)燥(zao)(zao)機(ji)簡稱凍干(gan)(gan)機(ji)，主要用于實驗(yan)研(yan)發真空冷凍干(gan)(gan)燥(zao)(zao)物(wu)(wu)料用途。實驗(yan)室(shi)凍干(gan)(gan)機(ji)的(de)工作原理是：先把含(han)有水分(fen)實驗(yan)的(de)物(wu)(wu)料進行預凍結晶成固(gu)(gu)態，然后在真空環境下進行一次干(gan)(gan)燥(zao)(zao)和(he)解析干(gan)(gan)燥(zao)(zao)，直接在固(gu)(gu)態升(sheng)華成氣(qi)體的(de)除(chu)去水分(fen)，得到含(han)水極少的(de)物(wu)(wu)料。在此拓(tuo)紛凍干(gan)(gan)機(ji)為(wei)大家介紹系列實驗(yan)室(shi)凍干(gan)(gan)機(ji)的(de)分(fen)類情況(kuang)。

       實驗室凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)機(ji)(ji)(ji)(ji)根據(ju)發展分為鐘罩(zhao)式(shi)凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)機(ji)(ji)(ji)(ji)、小型(xing)原(yuan)位(wei)凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)機(ji)(ji)(ji)(ji)，中式(shi)凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)機(ji)(ji)(ji)(ji)等(deng)，其中鐘罩(zhao)式(shi)凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)機(ji)(ji)(ji)(ji)FD系列分為：普(pu)通型(xing)、壓(ya)蓋型(xing)、多(duo)歧(qi)管型(xing)和(he)(he)多(duo)歧(qi)管壓(ya)蓋型(xing)。原(yuan)位(wei)預凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)機(ji)(ji)(ji)(ji)是在鐘罩(zhao)式(shi)凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)機(ji)(ji)(ji)(ji)基礎上升(sheng)級的(de)(de)LFD系列冷(leng)凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)燥機(ji)(ji)(ji)(ji)，具(ju)有(you)原(yuan)位(wei)預凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、工藝設(she)定和(he)(he)修改、數據(ju)記錄和(he)(he)存儲、凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)曲(qu)線等(deng)功能，是實驗凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)工藝研發的(de)(de)凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)機(ji)(ji)(ji)(ji)。通常實驗室凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)物料量(liang)比較少(shao)，所以實驗室真空冷(leng)凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)燥機(ji)(ji)(ji)(ji)設(she)計都按小型(xing)設(she)計和(he)(he)生(sheng)產，根據(ju)實驗物料量(liang)的(de)(de)要求，在增加(jia)處理量(liang)時小型(xing)實驗室凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)機(ji)(ji)(ji)(ji)滿足(zu)不了要求，SFD系列中式(shi)凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)機(ji)(ji)(ji)(ji)可以處理2KG以上的(de)(de)原(yuan)料量(liang)，同樣中式(shi)凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)機(ji)(ji)(ji)(ji)具(ju)有(you)PLC電控系統(tong)，一鍵(jian)啟動，全自動運(yun)行的(de)(de)智(zhi)能凍(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)機(ji)(ji)(ji)(ji)。

      根據用途凍(dong)(dong)干(gan)(gan)(gan)(gan)機(ji)(ji)(ji)有普(pu)(pu)通型凍(dong)(dong)干(gan)(gan)(gan)(gan)機(ji)(ji)(ji)、壓蓋型凍(dong)(dong)干(gan)(gan)(gan)(gan)機(ji)(ji)(ji)、多歧(qi)管凍(dong)(dong)干(gan)(gan)(gan)(gan)機(ji)(ji)(ji)等用于做(zuo)不同(tong)實(shi)(shi)驗物料。同(tong)時需要(yao)(yao)(yao)研發(fa)凍(dong)(dong)干(gan)(gan)(gan)(gan)工藝(yi)時需要(yao)(yao)(yao)確定(ding)物料的共晶點(dian)和(he)共熔點(dian)，可(ke)以(yi)選配(pei)共晶點(dian)測(ce)試儀。在實(shi)(shi)驗科研人員選擇凍(dong)(dong)干(gan)(gan)(gan)(gan)機(ji)(ji)(ji)時，需要(yao)(yao)(yao)確定(ding)實(shi)(shi)驗要(yao)(yao)(yao)求(qiu)，如果(guo)單(dan)純是做(zuo)凍(dong)(dong)干(gan)(gan)(gan)(gan)實(shi)(shi)驗，普(pu)(pu)通鐘罩式凍(dong)(dong)干(gan)(gan)(gan)(gan)機(ji)(ji)(ji)就可(ke)以(yi)。大部分(fen)實(shi)(shi)驗需要(yao)(yao)(yao)確定(ding)凍(dong)(dong)干(gan)(gan)(gan)(gan)的效率(lv)為后期轉化生產(chan)使(shi)用，所以(yi)凍(dong)(dong)干(gan)(gan)(gan)(gan)工藝(yi)在凍(dong)(dong)干(gan)(gan)(gan)(gan)生產(chan)是及其重要(yao)(yao)(yao)。根據藥(yao)品(pin)凍(dong)(dong)干(gan)(gan)(gan)(gan)、食(shi)品(pin)凍(dong)(dong)干(gan)(gan)(gan)(gan)、工業品(pin)凍(dong)(dong)干(gan)(gan)(gan)(gan)等類別要(yao)(yao)(yao)求(qiu)不一(yi)樣，選擇凍(dong)(dong)干(gan)(gan)(gan)(gan)機(ji)(ji)(ji)設備功能和(he)精密度會有不同(tong)。