液氨蒸發器的作用原理

從液氨蒸發器出(chu)來的(de)(de)(de)(de)氨(an)(an)(an)(an)的(de)(de)(de)(de)低(di)(di)(di)(di)溫(wen)(wen)低(di)(di)(di)(di)壓(ya)(ya)(ya)(ya)(ya)蒸(zheng)(zheng)(zheng)氣被吸入(ru)(ru)壓(ya)(ya)(ya)(ya)(ya)縮(suo)機內，壓(ya)(ya)(ya)(ya)(ya)縮(suo)成(cheng)(cheng)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)高(gao)(gao)溫(wen)(wen)的(de)(de)(de)(de)過熱(re)(re)蒸(zheng)(zheng)(zheng)氣，然(ran)后進入(ru)(ru)冷(leng)(leng)(leng)凝(ning)器(qi)。由于高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)高(gao)(gao)溫(wen)(wen)過熱(re)(re)氨(an)(an)(an)(an)氣的(de)(de)(de)(de)溫(wen)(wen)度高(gao)(gao)于其(qi)(qi)環(huan)境(jing)介質的(de)(de)(de)(de)溫(wen)(wen)度，且其(qi)(qi)壓(ya)(ya)(ya)(ya)(ya)力使(shi)氨(an)(an)(an)(an)氣能在(zai)常溫(wen)(wen)下(xia)冷(leng)(leng)(leng)凝(ning)成(cheng)(cheng)液體狀(zhuang)態，因(yin)而排至冷(leng)(leng)(leng)凝(ning)器(qi)時(shi)，經(jing)冷(leng)(leng)(leng)卻、冷(leng)(leng)(leng)凝(ning)成(cheng)(cheng)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)常溫(wen)(wen)的(de)(de)(de)(de)氨(an)(an)(an)(an)液。高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)常溫(wen)(wen)的(de)(de)(de)(de)氨(an)(an)(an)(an)液通過膨脹閥時(shi)，因(yin)節流而降(jiang)(jiang)壓(ya)(ya)(ya)(ya)(ya)，在(zai)壓(ya)(ya)(ya)(ya)(ya)力降(jiang)(jiang)低(di)(di)(di)(di)的(de)(de)(de)(de)同(tong)時(shi)，氨(an)(an)(an)(an)液因(yin)沸騰蒸(zheng)(zheng)(zheng)發吸熱(re)(re)使(shi)其(qi)(qi)本身的(de)(de)(de)(de)溫(wen)(wen)度也相(xiang)應(ying)下(xia)降(jiang)(jiang)，從(cong)而變成(cheng)(cheng)了(le)低(di)(di)(di)(di)壓(ya)(ya)(ya)(ya)(ya)低(di)(di)(di)(di)溫(wen)(wen)的(de)(de)(de)(de)氨(an)(an)(an)(an)液。把這(zhe)種低(di)(di)(di)(di)壓(ya)(ya)(ya)(ya)(ya)低(di)(di)(di)(di)溫(wen)(wen)的(de)(de)(de)(de)氨(an)(an)(an)(an)液引入(ru)(ru)蒸(zheng)(zheng)(zheng)發器(qi)吸熱(re)(re)蒸(zheng)(zheng)(zheng)發，即可使(shi)其(qi)(qi)周圍空氣及物料的(de)(de)(de)(de)溫(wen)(wen)度下(xia)降(jiang)(jiang)而達到制(zhi)冷(leng)(leng)(leng)的(de)(de)(de)(de)目的(de)(de)(de)(de)。從(cong)蒸(zheng)(zheng)(zheng)發器(qi)出(chu)來的(de)(de)(de)(de)低(di)(di)(di)(di)壓(ya)(ya)(ya)(ya)(ya)低(di)(di)(di)(di)溫(wen)(wen)氨(an)(an)(an)(an)氣重(zhong)新進入(ru)(ru)壓(ya)(ya)(ya)(ya)(ya)縮(suo)機，從(cong)而完成(cheng)(cheng)一個制(zhi)冷(leng)(leng)(leng)循環(huan)。然(ran)后重(zhong)復上述(shu)過程。 冷(leng)(leng)(leng)卻水是帶(dai)走冷(leng)(leng)(leng)凝(ning)器(qi)放出(chu)的(de)(de)(de)(de)熱(re)(re)量,再到循環(huan)水的(de)(de)(de)(de)水冷(leng)(leng)(leng)卻塔,冷(leng)(leng)(leng)卻后循環(huan)使(shi)用(yong)(yong)。冷(leng)(leng)(leng)凍(dong)水在(zai)蒸(zheng)(zheng)(zheng)發器(qi)里被降(jiang)(jiang)溫(wen)(wen)后，由冷(leng)(leng)(leng)凍(dong)水泵送到各個用(yong)(yong)冷(leng)(leng)(leng)設(she)備，熱(re)(re)交換后回到蒸(zheng)(zheng)(zheng)發器(qi)循環(huan)使(shi)用(yong)(yong)。

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  液氨蒸發器

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  蒸汽加熱水浴式液氨蒸發器