電動(dong)汽車(che)電機測試運(yun)行效(xiao)率是很重(zhong)要的,所以(yi)一旦遇(yu)到(dao)冷凝(ning)過高的話(hua),需要注意是否(fou)其他配件在運(yun)行中(zhong)是否(fou)有問題,建議檢查(cha)下電動(dong)汽車(che)電機測試整(zheng)體(ti)性能(neng)并進行解決(jue)故障。
電動汽車電機測試(shi)冷(leng)(leng)凝壓力升高(gao),將會導致壓縮(suo)功(gong)能(neng)(neng)增(zeng)(zeng)加,制冷(leng)(leng)量減(jian)少,制冷(leng)(leng)系數下降,能(neng)(neng)耗增(zeng)(zeng)加,引起冷(leng)(leng)凝器(qi)壓力升高(gao)的原因可能(neng)(neng)是冷(leng)(leng)凝器(qi)選的過小,建議更換或增(zeng)(zeng)加冷(leng)(leng)凝器(qi);如果(guo)是冷(leng)(leng)卻水流(liu)量不(bu)足(zu),建議增(zeng)(zeng)加水泵運(yun)行(xing)臺數,加大水流(liu)量;如果(guo)是冷(leng)(leng)凝器(qi)投入運(yun)行(xing)臺數少建議增(zeng)(zeng)加運(yun)行(xing)臺數。
如(ru)果(guo)是電動汽車(che)電機測試冷(leng)(leng)(leng)(leng)(leng)凝(ning)(ning)(ning)(ning)(ning)(ning)(ning)(ning)器(qi)(qi)換(huan)(huan)熱(re)面(mian)積減(jian)少,需要(yao)充足(zu)的(de)(de)換(huan)(huan)熱(re)面(mian)積是冷(leng)(leng)(leng)(leng)(leng)凝(ning)(ning)(ning)(ning)(ning)(ning)(ning)(ning)器(qi)(qi)換(huan)(huan)熱(re)效(xiao)果(guo)的(de)(de)重(zhong)要(yao)保障,特別是采用壓(ya)縮冷(leng)(leng)(leng)(leng)(leng)凝(ning)(ning)(ning)(ning)(ning)(ning)(ning)(ning)機組(zu)的(de)(de)制冷(leng)(leng)(leng)(leng)(leng)系統,因為這種機組(zu)的(de)(de)冷(leng)(leng)(leng)(leng)(leng)凝(ning)(ning)(ning)(ning)(ning)(ning)(ning)(ning)器(qi)(qi)兼有貯液(ye)器(qi)(qi)的(de)(de)功能,當冷(leng)(leng)(leng)(leng)(leng)凝(ning)(ning)(ning)(ning)(ning)(ning)(ning)(ning)器(qi)(qi)內(nei)液(ye)位(wei)過(guo)高(gao)時(shi)(shi),嚴重(zhong)影(ying)響(xiang)冷(leng)(leng)(leng)(leng)(leng)凝(ning)(ning)(ning)(ning)(ning)(ning)(ning)(ning)器(qi)(qi)的(de)(de)冷(leng)(leng)(leng)(leng)(leng)凝(ning)(ning)(ning)(ning)(ning)(ning)(ning)(ning)效(xiao)果(guo),冷(leng)(leng)(leng)(leng)(leng)凝(ning)(ning)(ning)(ning)(ning)(ning)(ning)(ning)溫度和(he)壓(ya)力升高(gao),制冷(leng)(leng)(leng)(leng)(leng)壓(ya)縮機耗電量(liang)增(zeng)加(jia),因此,操(cao)作時(shi)(shi)應(ying)注意液(ye)位(wei)變化(hua),及時(shi)(shi)排(pai)放冷(leng)(leng)(leng)(leng)(leng)凝(ning)(ning)(ning)(ning)(ning)(ning)(ning)(ning)器(qi)(qi)中(zhong)的(de)(de)冷(leng)(leng)(leng)(leng)(leng)凝(ning)(ning)(ning)(ning)(ning)(ning)(ning)(ning)液(ye)體,加(jia)注制冷(leng)(leng)(leng)(leng)(leng)劑(ji)時(shi)(shi),嚴格控制加(jia)入量(liang),確保冷(leng)(leng)(leng)(leng)(leng)凝(ning)(ning)(ning)(ning)(ning)(ning)(ning)(ning)器(qi)(qi)充足(zu)的(de)(de)換(huan)(huan)熱(re)面(mian)積。
如果是電動汽車電機測試冷(leng)凝器(qi)布(bu)(bu)水(shui)(shui)不(bu)均勻,當(dang)布(bu)(bu)水(shui)(shui)不(bu)均勻時,部分(fen)(fen)管子(zi)內(nei)水(shui)(shui)流(liu)量比較大,部分(fen)(fen)管子(zi)內(nei)的(de)水(shui)(shui)流(liu)量小(xiao),將使傳熱效(xiao)(xiao)率降低(di),冷(leng)凝溫度(du)升高。良好的(de)水(shui)(shui)流(liu)分(fen)(fen)布(bu)(bu),應是水(shui)(shui)流(liu)沿管壁旋(xuan)轉流(liu)下(xia),若(ruo)水(shui)(shui)流(liu)從(cong)管子(zi)中間流(liu)下(xia),則大部分(fen)(fen)水(shui)(shui)流(liu)起不(bu)到冷(leng)凝效(xiao)(xiao)果,所以當(dang)布(bu)(bu)水(shui)(shui)器(qi)布(bu)(bu)水(shui)(shui)不(bu)均勻時,應更換布(bu)(bu)水(shui)(shui)器(qi)。
如果是電動汽車電機測(ce)試(shi)冷凝器管道上有水(shui)垢(gou),冷凝器管道上的水(shui)垢(gou)導致(zhi)熱阻增大(da),傳熱系數降低(di),熱交換效果下降,使冷凝溫度上升(sheng)。改善(shan)水(shui)質,及時除(chu)垢(gou)。
如果(guo)是電動汽車(che)電機測試冷(leng)(leng)凝(ning)器(qi)中(zhong)有空氣,冷(leng)(leng)凝(ning)器(qi)中(zhong)的空氣使系(xi)統中(zhong)分壓(ya)力增加(jia),總壓(ya)力升高,空氣還(huan)會在冷(leng)(leng)凝(ning)器(qi)表面(mian)形成(cheng)氣體層(ceng),產(chan)生附加(jia)熱阻,使傳(chuan)熱效率降低,導致冷(leng)(leng)凝(ning)壓(ya)力和冷(leng)(leng)凝(ning)溫(wen)度升高,需(xu)要及時(shi)放空氣。
電動汽車電機測試冷凝器的故障不同于壓縮機,故障還是比較好解決的,所以,建議操作者遇到故障不要拖及時解決為好。