空(kong)調(diao)低(di)壓(ya)(ya)(ya)(ya)管(guan)(guan)(guan)。空(kong)調(diao)的(de)(de)(de)(de)工作(zuo)原理(li)是:通過(guo)制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑在(zai)(zai)液(ye)態和(he)氣(qi)(qi)態兩種狀(zhuang)態下(xia)不(bu)斷(duan)地轉換實現制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)的(de)(de)(de)(de)目(mu)的(de)(de)(de)(de)。制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑在(zai)(zai)常溫(wen)和(he)正常氣(qi)(qi)壓(ya)(ya)(ya)(ya)下(xia)是以氣(qi)(qi)態形式存(cun)在(zai)(zai),要(yao)(yao)把氣(qi)(qi)態的(de)(de)(de)(de)制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑轉變為液(ye)態制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑就(jiu)需要(yao)(yao)通過(guo)壓(ya)(ya)(ya)(ya)縮(suo)機對氣(qi)(qi)態制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑進(jin)(jin)行加(jia)壓(ya)(ya)(ya)(ya)使(shi)之成為液(ye)態制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑,液(ye)態制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑通過(guo)高(gao)壓(ya)(ya)(ya)(ya)管(guan)(guan)(guan)(細管(guan)(guan)(guan))流向駕(jia)駛(shi)(shi)室(shi)內的(de)(de)(de)(de)膨(peng)脹(zhang)閥(fa)。而(er)駕(jia)駛(shi)(shi)室(shi)內空(kong)調(diao)蒸發器的(de)(de)(de)(de)管(guan)(guan)(guan)路直徑變粗,這時(shi)進(jin)(jin)入(ru)蒸發器的(de)(de)(de)(de)液(ye)態制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑迅速膨(peng)脹(zhang)并逐(zhu)步氣(qi)(qi)化,在(zai)(zai)這一轉換過(guo)程(cheng)中(zhong)制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑需要(yao)(yao)吸收(shou)大量(liang)的(de)(de)(de)(de)熱(re)(re)(re)能,而(er)這個熱(re)(re)(re)能就(jiu)是來自被(bei)吸入(ru)駕(jia)駛(shi)(shi)室(shi)的(de)(de)(de)(de)空(kong)氣(qi)(qi)熱(re)(re)(re)量(liang),被(bei)吸收(shou)熱(re)(re)(re)能的(de)(de)(de)(de)空(kong)氣(qi)(qi)溫(wen)度降低(di)后(hou),又被(bei)駕(jia)駛(shi)(shi)室(shi)內的(de)(de)(de)(de)風扇(shan)吹回駕(jia)駛(shi)(shi)室(shi),駕(jia)駛(shi)(shi)室(shi)內的(de)(de)(de)(de)空(kong)氣(qi)(qi)在(zai)(zai)不(bu)斷(duan)地經過(guo)室(shi)內機進(jin)(jin)行循(xun)環,不(bu)斷(duan)地不(bu)吸收(shou)熱(re)(re)(re)能使(shi)得駕(jia)駛(shi)(shi)室(shi)內的(de)(de)(de)(de)溫(wen)度逐(zhu)漸的(de)(de)(de)(de)降低(di)。同時(shi)已(yi)經氣(qi)(qi)化的(de)(de)(de)(de)制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑通過(guo)低(di)壓(ya)(ya)(ya)(ya)管(guan)(guan)(guan)(粗管(guan)(guan)(guan))被(bei)壓(ya)(ya)(ya)(ya)縮(suo)機再(zai)吸入(ru)到壓(ya)(ya)(ya)(ya)縮(suo)機進(jin)(jin)行壓(ya)(ya)(ya)(ya)縮(suo),在(zai)(zai)壓(ya)(ya)(ya)(ya)縮(suo)的(de)(de)(de)(de)過(guo)程(cheng)中(zhong)釋放出熱(re)(re)(re)能,形成液(ye)態制(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑。循(xun)環往(wang)復(fu)就(jiu)是汽車空(kong)調(diao)的(de)(de)(de)(de)工作(zuo)原理(li)和(he)為什么要(yao)(yao)有高(gao)壓(ya)(ya)(ya)(ya)管(guan)(guan)(guan)和(he)低(di)壓(ya)(ya)(ya)(ya)管(guan)(guan)(guan)的(de)(de)(de)(de)原因(yin)。
1,包裹低壓管是否有效果?
汽車空調的低壓管只是起一個輸送氣化后的冷媒的作用,對整個系統的冷卻作用很小,注意是很小,不是沒有,效果肯定是有的,因為最起碼可以把輸送回去的氣體溫度降低,從而起到降低壓縮機負擔(壓縮機壓縮這些氣體是要放出大量的熱的,大量的熱要通過冷凝器散發出去,當然是進氣的溫度越低越好)的作用。結論是有用,但作用不大。
2,是否對壓縮機有損害?
這個如果看紅色文字的描述,確實有點可怕,但是實際情況是不會輕易發生液擊的,我們知道,保溫無非就是起一個降低或者說減少周邊包括發動機熱量對低壓管內氣體的加熱的作用,進入低壓管的冷媒都是氣體,一般不會有液態的冷媒流過的,但是,在特殊情況下,包裹低壓管可能會對壓縮機產生影響,主要是,冷媒過多的情況下,整個空調系統壓力過大的情況。
3.汽車空調低壓的作用是檢測系統壓力是否正常,在壓力超出允許范圍時,壓力開關動作,并將異常信號傳給CPU,CPU處理后會停止制冷系統的工作,并將故障顯示出來。
在Xsara Picasso獲(huo)得成(cheng)功之(zhi)后,雪鐵龍再度發力,將畢加(jia)索之(zhi)名賦予C4平臺,創建了(le)MPV——C4 Picasso。與Xsara不(bu)同,C4 Picasso是(shi)一款7座的緊(jin)湊(cou)型MPV。
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