品牌 | LNEYA/無錫冠亞 | 產地類別 | 國產 |
---|---|---|---|
應用領域 | 食品,化工,生物產業,農業,制藥 |
冠亞制冷 加熱制冷體機-70℃~250℃
全密閉加熱冷卻恒溫(wen)(wen)(wen)系(xi)統是(shi)配套反(fan)(fan)(fan)應釜可以應用于各種化學反(fan)(fan)(fan)應中(zhong),比(bi)如(ru)醇酸樹脂(zhi)作(zuo)為一種化工(gong)原(yuan)料,需要經過各種反(fan)(fan)(fan)應達到(dao)溫(wen)(wen)(wen)度狀態,那(nei)么,醇酸樹脂(zhi)反(fan)(fan)(fan)應控溫(wen)(wen)(wen)全密閉加熱冷卻恒溫(wen)(wen)(wen)系(xi)統控溫(wen)(wen)(wen)溫(wen)(wen)(wen)背景和應用你都了解多少呢?
醇酸樹脂(zhi)是(shi)一種重要的化(hua)(hua)工(gong)原料(liao),其生(sheng)產需要經過醇解反(fan)(fan)(fan)應(ying)(ying)、酯化(hua)(hua)反(fan)(fan)(fan)應(ying)(ying)、氨基甲酸化(hua)(hua)反(fan)(fan)(fan)應(ying)(ying)、乳化(hua)(hua)過程(cheng)、脫溶(rong)劑(ji)、過濾等工(gong)序(xu)。其中(zhong),酯化(hua)(hua)反(fan)(fan)(fan)應(ying)(ying)在反(fan)(fan)(fan)應(ying)(ying)釜(fu)中(zhong)進行,按配方比例將植物油(you)酸、多元(yuan)醇、鄰苯二(er)甲酸酐、助劑(ji)等原料(liao)加(jia)入(ru)反(fan)(fan)(fan)應(ying)(ying)釜(fu)中(zhong),啟(qi)動(dong)攪拌(ban),經加(jia)熱(re)、保溫酯化(hua)(hua)、負壓脫水,直(zhi)至反(fan)(fan)(fan)應(ying)(ying)完成。樹脂(zhi)生(sheng)產廣(guang)泛采(cai)用熱(re)媒加(jia)熱(re)技術(shu),通過熱(re)載體(如導熱油(you))傳熱,進行間接(jie)加熱,熱媒加熱技(ji)術(shu)具有傳熱均勻、操作(zuo)方便等優(you)點。
冠亞制冷 加熱制冷體機-70℃~250℃
醇酸樹脂反(fan)(fan)應(ying)過(guo)(guo)程(cheng)可以分(fen)為升溫(wen)(wen)(wen)、保(bao)溫(wen)(wen)(wen)、降溫(wen)(wen)(wen)三個溫(wen)(wen)(wen)度狀態,整個反(fan)(fan)應(ying)過(guo)(guo)程(cheng)要(yao)(yao)求緊密銜接,現控(kong)溫(wen)(wen)(wen)措施采用熱油、冷(leng)(leng)油交替控(kong)制溫(wen)(wen)(wen)度。現有的醇酸樹脂生產工(gong)藝(yi)主要(yao)(yao)采用導熱油傳熱,在反(fan)(fan)應(ying)體系不需要(yao)(yao)提供能量時,熱媒(mei)(mei)(mei)通過(guo)(guo)小循(xun)環(huan)在自身系統內循(xun)環(huan)運(yun)轉;冷(leng)(leng)媒(mei)(mei)(mei)間歇循(xun)環(huan),即(ji)冷(leng)(leng)媒(mei)(mei)(mei)在工(gong)藝(yi)要(yao)(yao)求降溫(wen)(wen)(wen)時才開始啟動。冷(leng)(leng)媒(mei)(mei)(mei)和熱媒(mei)(mei)(mei)循(xun)環(huan)通過(guo)(guo)共(gong)用一套(tao)盤管和夾套(tao)傳熱來實(shi)施升溫(wen)(wen)(wen)和降溫(wen)(wen)(wen),而(er)實(shi)際生產過(guo)(guo)程(cheng)中,采用簡單的溫(wen)(wen)(wen)度調(diao)節系統,難以使醇解和酯化后期的溫(wen)(wen)(wen)度保(bao)持穩定。