高溫(wen)(wen)工(gong)(gong)業(ye)制(zhi)(zhi)(zhi)(zhi)冷機(5 ~ 30 °C)這種制(zhi)(zhi)(zhi)(zhi)冷機使(shi)用(yong)傳統的(de)制(zhi)(zhi)(zhi)(zhi)冷劑，將溫(wen)(wen)度(du)控(kong)制(zhi)(zhi)(zhi)(zhi)在(zai)(zai)5 ~ 30 °C 之間。結果表明，在(zai)(zai)調(diao)整溫(wen)(wen)度(du)控(kong)制(zhi)(zhi)(zhi)(zhi)范(fan)圍(wei)時，工(gong)(gong)業(ye)冷水機組的(de)**溫(wen)(wen)度(du)設定在(zai)(zai)5 °C，**溫(wen)(wen)度(du)設定在(zai)(zai)30 °C，這是(shi)工(gong)(gong)業(ye)上應用(yong)最廣(guang)泛的(de)溫(wen)(wen)度(du)控(kong)制(zhi)(zhi)(zhi)(zhi)范(fan)圍(wei)。但在(zai)(zai)制(zhi)(zhi)(zhi)(zhi)定工(gong)(gong)業(ye)冷水機組方案時，有些要(yao)求(qiu)控(kong)制(zhi)(zhi)(zhi)(zhi)在(zai)(zai)3 °C，需要(yao)提高和確定。

中溫(wen)工(gong)(gong)業(ye)冷(leng)水(shui)(shui)(shui)機(ji)組(0 ~ 15 °C)的(de)水(shui)(shui)(shui)在0 °C 時會結冰，這是(shi)大多數(shu)人都能理解的(de)常識性問題(ti)。那(nei)么，如果(guo)工(gong)(gong)業(ye)冷(leng)水(shui)(shui)(shui)機(ji)組需要零度以下(xia)的(de)低溫(wen)冷(leng)凍液，是(shi)否(fou)可以實現呢？當(dang)然，答案是(shi)肯定(ding)的(de)。中溫(wen)工(gong)(gong)業(ye)冷(leng)水(shui)(shui)(shui)機(ji)的(de)溫(wen)度可設定(ding)在攝氏0度至15度，并可使用氯化(hua)鈣(gai)(鹽水(shui)(shui)(shui))或(huo)乙二醇水(shui)(shui)(shui)溶液作為制(zhi)冷(leng)劑。

低(di)溫(wen)(wen)工(gong)(gong)業(ye)(ye)(ye)冷(leng)(leng)水(shui)機(ji)組可提供(gong) -15 ° C ~ -35 ° C 以下的低(di)溫(wen)(wen)工(gong)(gong)業(ye)(ye)(ye)冷(leng)(leng)水(shui)機(ji)組。它通常用于(yu)化工(gong)(gong)和制(zhi)(zhi)(zhi)藥行(xing)業(ye)(ye)(ye)，用于(yu)反應器中(zhong)的物料(liao)冷(leng)(leng)卻或(huo)物料(liao)冷(leng)(leng)凝回收。深低(di)溫(wen)(wen)工(gong)(gong)業(ye)(ye)(ye)制(zhi)(zhi)(zhi)冷(leng)(leng)機(ji)能夠提供(gong) -35 °C 以下的低(di)溫(wen)(wen)冷(leng)(leng)凍液的工(gong)(gong)業(ye)(ye)(ye)制(zhi)(zhi)(zhi)冷(leng)(leng)機(ji)稱為深低(di)溫(wen)(wen)工(gong)(gong)業(ye)(ye)(ye)制(zhi)(zhi)(zhi)冷(leng)(leng)機(ji)。采用二元或(huo)三元復合(he)制(zhi)(zhi)(zhi)冷(leng)(leng)系統，又稱復合(he)式工(gong)(gong)業(ye)(ye)(ye)制(zhi)(zhi)(zhi)冷(leng)(leng)機(ji)。因此，工(gong)(gong)業(ye)(ye)(ye)冷(leng)(leng)水(shui)機(ji)組的溫(wen)(wen)度控制(zhi)(zhi)(zhi)范圍確實特(te)別寬。