陜西商用中央空調螺桿機--螺桿(gan)式冷(leng)(leng)(leng)(leng)(leng)(leng)水機(ji)原理(li)：螺桿(gan)式冷(leng)(leng)(leng)(leng)(leng)(leng)水機(ji)因其關鍵部件(jian)-壓(ya)(ya)縮(suo)(suo)(suo)機(ji)采用(yong)螺桿(gan)式故名螺桿(gan)式冷(leng)(leng)(leng)(leng)(leng)(leng)水機(ji)，機(ji)組由由蒸發器出來的狀(zhuang)態(tai)(tai)(tai)為(wei)的氣(qi)體冷(leng)(leng)(leng)(leng)(leng)(leng)媒；經(jing)壓(ya)(ya)縮(suo)(suo)(suo)機(ji)絕熱壓(ya)(ya)縮(suo)(suo)(suo)以后(hou)，變成(cheng)高溫高壓(ya)(ya)狀(zhuang)態(tai)(tai)(tai)。被壓(ya)(ya)縮(suo)(suo)(suo)后(hou)的氣(qi)體冷(leng)(leng)(leng)(leng)(leng)(leng)媒，在(zai)冷(leng)(leng)(leng)(leng)(leng)(leng)凝器中，等壓(ya)(ya)冷(leng)(leng)(leng)(leng)(leng)(leng)卻冷(leng)(leng)(leng)(leng)(leng)(leng)凝，經(jing)冷(leng)(leng)(leng)(leng)(leng)(leng)凝后(hou)變化(hua)成(cheng)液態(tai)(tai)(tai)冷(leng)(leng)(leng)(leng)(leng)(leng)媒，再經(jing)節流(liu)閥膨脹到低(di)壓(ya)(ya)，變成(cheng)氣(qi)液混(hun)合物(wu)。其中低(di)溫低(di)壓(ya)(ya)下的液態(tai)(tai)(tai)冷(leng)(leng)(leng)(leng)(leng)(leng)媒，在(zai)蒸發器中吸收被冷(leng)(leng)(leng)(leng)(leng)(leng)物(wu)質的熱量，重新變成(cheng)氣(qi)態(tai)(tai)(tai)冷(leng)(leng)(leng)(leng)(leng)(leng)媒。

氣態冷媒經管道重(zhong)新進入壓縮機，開始新的循環。這就(jiu)是冷凍循環的四個過程，也是螺桿式冷水(shui)機的主要工(gong)作原理。