高溫(wen)(wen)工(gong)業(ye)制(zhi)(zhi)冷(leng)機(ji)(5 ~ 30 °C)這種(zhong)制(zhi)(zhi)冷(leng)機(ji)使用(yong)傳統的(de)(de)制(zhi)(zhi)冷(leng)劑，將溫(wen)(wen)度(du)控制(zhi)(zhi)在5 ~ 30 °C 之間(jian)。結(jie)果(guo)表(biao)明，在調(diao)整溫(wen)(wen)度(du)控制(zhi)(zhi)范圍(wei)(wei)時，工(gong)業(ye)冷(leng)水機(ji)組的(de)(de)**溫(wen)(wen)度(du)設定在5 °C，**溫(wen)(wen)度(du)設定在30 °C，這是工(gong)業(ye)上(shang)應用(yong)最廣泛的(de)(de)溫(wen)(wen)度(du)控制(zhi)(zhi)范圍(wei)(wei)。但在制(zhi)(zhi)定工(gong)業(ye)冷(leng)水機(ji)組方案(an)時，有些要求控制(zhi)(zhi)在3 °C，需要提高和(he)確定。

中溫工(gong)業冷(leng)水(shui)機(ji)(ji)組(0 ~ 15 °C)的水(shui)在(zai)(zai)0 °C 時會(hui)結冰，這是(shi)大多數人都能理解的常識性問題。那么，如果工(gong)業冷(leng)水(shui)機(ji)(ji)組需(xu)要(yao)零度(du)以(yi)下的低(di)溫冷(leng)凍液，是(shi)否(fou)可以(yi)實現(xian)呢？當然，答案是(shi)肯定(ding)的。中溫工(gong)業冷(leng)水(shui)機(ji)(ji)的溫度(du)可設定(ding)在(zai)(zai)攝氏(shi)0度(du)至15度(du)，并可使用氯(lv)化鈣(鹽水(shui))或乙二(er)醇水(shui)溶(rong)液作(zuo)為制(zhi)冷(leng)劑。

低(di)溫(wen)(wen)工(gong)(gong)業(ye)(ye)冷(leng)水機(ji)組可(ke)提供(gong) -15 ° C ~ -35 ° C 以下的(de)低(di)溫(wen)(wen)工(gong)(gong)業(ye)(ye)冷(leng)水機(ji)組。它通常用于化工(gong)(gong)和制(zhi)藥行業(ye)(ye)，用于反應器(qi)中的(de)物料(liao)冷(leng)卻或(huo)物料(liao)冷(leng)凝回(hui)收。深低(di)溫(wen)(wen)工(gong)(gong)業(ye)(ye)制(zhi)冷(leng)機(ji)能夠提供(gong) -35 °C 以下的(de)低(di)溫(wen)(wen)冷(leng)凍液的(de)工(gong)(gong)業(ye)(ye)制(zhi)冷(leng)機(ji)稱(cheng)為深低(di)溫(wen)(wen)工(gong)(gong)業(ye)(ye)制(zhi)冷(leng)機(ji)。采用二元或(huo)三元復合制(zhi)冷(leng)系統(tong)，又(you)稱(cheng)復合式工(gong)(gong)業(ye)(ye)制(zhi)冷(leng)機(ji)。因(yin)此，工(gong)(gong)業(ye)(ye)冷(leng)水機(ji)組的(de)溫(wen)(wen)度控制(zhi)范(fan)圍確實(shi)特別寬。