高(gao)溫工業(ye)制(zhi)(zhi)冷機(5 ~ 30 °C)這種制(zhi)(zhi)冷機使用(yong)傳統的(de)制(zhi)(zhi)冷劑，將溫度(du)控(kong)制(zhi)(zhi)在5 ~ 30 °C 之間。結果表明，在調整溫度(du)控(kong)制(zhi)(zhi)范圍時，工業(ye)冷水(shui)機組(zu)的(de)**溫度(du)設(she)定在5 °C，**溫度(du)設(she)定在30 °C，這是工業(ye)上應用(yong)最廣(guang)泛的(de)溫度(du)控(kong)制(zhi)(zhi)范圍。但在制(zhi)(zhi)定工業(ye)冷水(shui)機組(zu)方案(an)時，有些要求控(kong)制(zhi)(zhi)在3 °C，需(xu)要提高(gao)和確定。

中(zhong)溫工業(ye)冷(leng)水(shui)機(ji)(ji)組(0 ~ 15 °C)的水(shui)在0 °C 時(shi)會結冰，這是(shi)(shi)大多數人(ren)都能理解的常識性問題。那么(me)，如果工業(ye)冷(leng)水(shui)機(ji)(ji)組需要零度以下的低溫冷(leng)凍液，是(shi)(shi)否可(ke)以實(shi)現呢(ni)？當(dang)然，答(da)案是(shi)(shi)肯定的。中(zhong)溫工業(ye)冷(leng)水(shui)機(ji)(ji)的溫度可(ke)設定在攝氏0度至15度，并可(ke)使用氯化鈣(鹽水(shui))或乙二醇水(shui)溶(rong)液作(zuo)為制冷(leng)劑(ji)。

低(di)溫(wen)工(gong)(gong)(gong)(gong)業(ye)冷(leng)(leng)(leng)(leng)(leng)水(shui)機(ji)組(zu)可提(ti)供 -15 ° C ~ -35 ° C 以(yi)下的(de)(de)低(di)溫(wen)工(gong)(gong)(gong)(gong)業(ye)冷(leng)(leng)(leng)(leng)(leng)水(shui)機(ji)組(zu)。它通常(chang)用于化工(gong)(gong)(gong)(gong)和制(zhi)(zhi)(zhi)藥行(xing)業(ye)，用于反應器中的(de)(de)物(wu)料(liao)冷(leng)(leng)(leng)(leng)(leng)卻(que)或(huo)物(wu)料(liao)冷(leng)(leng)(leng)(leng)(leng)凝回收。深(shen)低(di)溫(wen)工(gong)(gong)(gong)(gong)業(ye)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)機(ji)能夠(gou)提(ti)供 -35 °C 以(yi)下的(de)(de)低(di)溫(wen)冷(leng)(leng)(leng)(leng)(leng)凍液的(de)(de)工(gong)(gong)(gong)(gong)業(ye)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)機(ji)稱(cheng)為深(shen)低(di)溫(wen)工(gong)(gong)(gong)(gong)業(ye)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)機(ji)。采用二元(yuan)或(huo)三(san)元(yuan)復合(he)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)系統，又稱(cheng)復合(he)式工(gong)(gong)(gong)(gong)業(ye)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)機(ji)。因此，工(gong)(gong)(gong)(gong)業(ye)冷(leng)(leng)(leng)(leng)(leng)水(shui)機(ji)組(zu)的(de)(de)溫(wen)度控制(zhi)(zhi)(zhi)范圍確實特別寬。