汽(qi)車(che)空(kong)(kong)(kong)調系統(tong)有兩個主(zhu)要的(de)(de)空(kong)(kong)(kong)調管(guan)(guan),一(yi)根是(shi)(shi)(shi)(shi)從蒸發(fa)器(qi)到壓縮機(ji)的(de)(de)低(di)壓管(guan)(guan),另外一(yi)根是(shi)(shi)(shi)(shi)從冷凝器(qi)到蒸發(fa)器(qi)的(de)(de)高壓管(guan)(guan)。包裹(guo)(guo)這(zhe)兩根空(kong)(kong)(kong)調管(guan)(guan)可(ke)以提高空(kong)(kong)(kong)調系統(tong)的(de)(de)制冷性能嗎?答案是(shi)(shi)(shi)(shi)肯(ken)定的(de)(de),但是(shi)(shi)(shi)(shi)包裹(guo)(guo)的(de)(de)方法和位置是(shi)(shi)(shi)(shi)很有講究。如果包裹(guo)(guo)不當,可(ke)能會起到相(xiang)反(fan)的(de)(de)效果。
汽(qi)車(che)(che)(che)空調(diao)(diao)原理:壓(ya)(ya)(ya)縮機(ji)(ji)往往是安裝在發(fa)動(dong)機(ji)(ji)上(shang),并(bing)用皮帶驅(qu)動(dong)(也有直接驅(qu)動(dong)的(de)),冷(leng)(leng)凝器(qi)(qi)安裝在汽(qi)車(che)(che)(che)散熱(re)(re)器(qi)(qi)的(de)前方(fang),而蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi)在車(che)(che)(che)里面,工作(zuo)時從蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi)出(chu)來的(de)低(di)(di)壓(ya)(ya)(ya)氣(qi)(qi)態(tai)(tai)致(zhi)冷(leng)(leng)劑流經(jing)(jing)(jing)(jing)壓(ya)(ya)(ya)縮機(ji)(ji)變成高(gao)壓(ya)(ya)(ya)高(gao)溫(wen)(wen)氣(qi)(qi)體,經(jing)(jing)(jing)(jing)過(guo)冷(leng)(leng)凝器(qi)(qi)散熱(re)(re)管降(jiang)溫(wen)(wen)冷(leng)(leng)卻變成高(gao)壓(ya)(ya)(ya)低(di)(di)溫(wen)(wen)的(de)液體,再經(jing)(jing)(jing)(jing)過(guo)貯(zhu)液干燥(zao)器(qi)(qi)除濕(shi)與緩沖,然后(hou)以較穩定的(de)壓(ya)(ya)(ya)力和流量(liang)流向膨(peng)(peng)脹閥,經(jing)(jing)(jing)(jing)節流和降(jiang)壓(ya)(ya)(ya)最后(hou)流向蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi)。致(zhi)冷(leng)(leng)劑一(yi)(yi)遇低(di)(di)壓(ya)(ya)(ya)環境即蒸(zheng)(zheng)(zheng)發(fa),吸收大量(liang)熱(re)(re)能。車(che)(che)(che)廂(xiang)內(nei)(nei)的(de)空氣(qi)(qi)不(bu)(bu)斷流經(jing)(jing)(jing)(jing)蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi),車(che)(che)(che)廂(xiang)內(nei)(nei)溫(wen)(wen)度(du)也就(jiu)因(yin)(yin)此降(jiang)低(di)(di)。液態(tai)(tai)致(zhi)冷(leng)(leng)劑流經(jing)(jing)(jing)(jing)蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi)后(hou)再次(ci)變成低(di)(di)壓(ya)(ya)(ya)氣(qi)(qi)體,又重新被吸入壓(ya)(ya)(ya)縮機(ji)(ji)進行下一(yi)(yi)次(ci)的(de)循環工作(zuo)。在整個系(xi)統(tong)中,膨(peng)(peng)脹閥是控制(zhi)致(zhi)冷(leng)(leng)劑進入蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi)的(de)機(ji)(ji)關,致(zhi)冷(leng)(leng)劑進入蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi)太多就(jiu)不(bu)(bu)易蒸(zheng)(zheng)(zheng)發(fa)而太少冷(leng)(leng)氣(qi)(qi)又會不(bu)(bu)夠,因(yin)(yin)此膨(peng)(peng)脹閥是調(diao)(diao)節中樞。而壓(ya)(ya)(ya)縮機(ji)(ji)是系(xi)統(tong)的(de)心臟,系(xi)統(tong)循環的(de)動(dong)力源泉。
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