工業冷水機制(zhi)冷(leng)(leng)(leng)系統(tong)屬蒸(zheng)(zheng)(zheng)氣壓縮(suo)式(shi)制(zhi)冷(leng)(leng)(leng)，如(ru)(ru)原理圖所示，主要(yao)由壓縮(suo)機(ji)、冷(leng)(leng)(leng)凝(ning)器、節流裝置(zhi)（如(ru)(ru)膨脹(zhang)閥、毛細(xi)血(xue)管）、蒸(zheng)(zheng)(zheng)發器等(deng)組成(cheng)。制(zhi)冷(leng)(leng)(leng)工質(zhi)（即制(zhi)冷(leng)(leng)(leng)劑(ji)/冷(leng)(leng)(leng)媒）在蒸(zheng)(zheng)(zheng)發器內吸(xi)收被冷(leng)(leng)(leng)卻(que)物體的熱(re)量并(bing)汽化成(cheng)蒸(zheng)(zheng)(zheng)氣，壓縮(suo)機(ji)不斷(duan)地將產生(sheng)的蒸(zheng)(zheng)(zheng)氣從蒸(zheng)(zheng)(zheng)發器中(zhong)抽出，并(bing)進行壓縮(suo)，經壓縮(suo)后的高溫(wen)、高壓蒸(zheng)(zheng)(zheng)氣排到(dao)冷(leng)(leng)(leng)凝(ning)器后向(xiang)冷(leng)(leng)(leng)卻(que)介質(zhi)（如(ru)(ru)水(shui)、空(kong)氣等(deng)，介質(zhi)是(shi)水(shui)的就是(shi)水(shui)冷(leng)(leng)(leng)式(shi)冷(leng)(leng)(leng)水(shui)機(ji)，介質(zhi)是(shi)空(kong)氣的就是(shi)風冷(leng)(leng)(leng)式(shi)冷(leng)(leng)(leng)水(shui)機(ji)）放(fang)熱(re)冷(leng)(leng)(leng)凝(ning)成(cheng)高壓液體，再經節流裝置(zhi)降(jiang)壓后進入蒸(zheng)(zheng)(zheng)發器，再次(ci)汽化，吸(xi)收被冷(leng)(leng)(leng)卻(que)物體的熱(re)量，如(ru)(ru)此周而復(fu)始地循環。

　　通(tong)俗地講就是通(tong)過壓(ya)縮(suo)機做功，將(jiang)熱量(liang)從低溫熱源(冷(leng)凍水)轉移(yi)到高(gao)溫熱源(空氣或(huo)者冷(leng)卻水)。

　　過程一是壓縮后(hou)高(gao)溫(wen)高(gao)壓的(de)制冷劑氣體(ti)(ti)經冷凝器冷卻(que)成中(zhong)溫(wen)高(gao)壓的(de)液體(ti)(ti)

　　過程二是從冷凝器出來的中溫(wen)高壓的液(ye)體經節流后變成低溫(wen)低壓的液(ye)體

　　過(guo)程三是低溫(wen)低壓的制冷(leng)劑液體經(jing)過(guo)蒸(zheng)發器變成(cheng)低溫(wen)低壓的制冷(leng)劑氣(qi)體

　　過程四是壓縮機將低溫(wen)低壓的(de)制冷(leng)劑(ji)氣(qi)體壓縮成高溫(wen)高壓的(de)制冷(leng)劑(ji)氣(qi)體