螺(luo)桿式(shi)(shi)(shi)(shi)冷(leng)(leng)(leng)(leng)(leng)水(shui)機(ji)(ji)(ji)變(bian)(bian)成(cheng)(cheng)(cheng)高(gao)溫高(gao)壓狀(zhuang)態(tai)(tai)，被壓縮(suo)(suo)后的(de)氣(qi)體(ti)冷(leng)(leng)(leng)(leng)(leng)媒，螺(luo)桿式(shi)(shi)(shi)(shi)冷(leng)(leng)(leng)(leng)(leng)水(shui)機(ji)(ji)(ji)由蒸(zheng)發(fa)器(qi)出來的(de)狀(zhuang)態(tai)(tai)為的(de)氣(qi)體(ti)冷(leng)(leng)(leng)(leng)(leng)媒；經壓縮(suo)(suo)機(ji)(ji)(ji)絕熱壓縮(suo)(suo)以后。螺(luo)桿式(shi)(shi)(shi)(shi)冷(leng)(leng)(leng)(leng)(leng)水(shui)機(ji)(ji)(ji)的(de)冷(leng)(leng)(leng)(leng)(leng)凝(ning)器(qi)中，等壓冷(leng)(leng)(leng)(leng)(leng)卻冷(leng)(leng)(leng)(leng)(leng)凝(ning)，經冷(leng)(leng)(leng)(leng)(leng)凝(ning)后變(bian)(bian)化成(cheng)(cheng)(cheng)液態(tai)(tai)冷(leng)(leng)(leng)(leng)(leng)媒，再經節流(liu)閥膨脹到(dao)低(di)壓，變(bian)(bian)成(cheng)(cheng)(cheng)氣(qi)液混合物。其(qi)中低(di)溫低(di)壓下(xia)的(de)液態(tai)(tai)冷(leng)(leng)(leng)(leng)(leng)媒，螺(luo)桿式(shi)(shi)(shi)(shi)冷(leng)(leng)(leng)(leng)(leng)水(shui)機(ji)(ji)(ji)的(de)蒸(zheng)發(fa)器(qi)中吸(xi)收被冷(leng)(leng)(leng)(leng)(leng)物質(zhi)的(de)熱量，重新(xin)變(bian)(bian)成(cheng)(cheng)(cheng)氣(qi)態(tai)(tai)冷(leng)(leng)(leng)(leng)(leng)媒。氣(qi)態(tai)(tai)冷(leng)(leng)(leng)(leng)(leng)媒經管(guan)道重新(xin)進入(ru)壓縮(suo)(suo)機(ji)(ji)(ji)，開始(shi)新(xin)的(de)循環。這就是冷(leng)(leng)(leng)(leng)(leng)凍循環的(de)四個過程(cheng)。也就是螺(luo)桿式(shi)(shi)(shi)(shi)冷(leng)(leng)(leng)(leng)(leng)水(shui)機(ji)(ji)(ji)的(de)工(gong)作(zuo)原理。