一、電子膨脹閥控制原理是什么
電(dian)(dian)子膨(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)是一(yi)種(zhong)電(dian)(dian)子控(kong)制(zhi)的(de)(de)節流元件,它可以按(an)照預設(she)程序調節蒸發(fa)器(qi)供液量,目前(qian)電(dian)(dian)子膨(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)主要有(you)電(dian)(dian)磁式(shi)膨(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)和電(dian)(dian)動(dong)式(shi)膨(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)兩種(zhong),兩者的(de)(de)工(gong)作原理有(you)些不同:1、電(dian)(dian)磁式(shi)電(dian)(dian)子膨(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)內部具有(you)電(dian)(dian)磁線圈(quan)(quan)(quan),通(tong)過電(dian)(dian)磁線圈(quan)(quan)(quan)作為媒(mei)介來控(kong)制(zhi)系統流量。在電(dian)(dian)磁線圈(quan)(quan)(quan)通(tong)電(dian)(dian)之前(qian),閥(fa)針處于開啟狀態(tai),在電(dian)(dian)磁線圈(quan)(quan)(quan)通(tong)電(dian)(dian)之后,閥(fa)針的(de)(de)開啟程度(du)由(you)(you)電(dian)(dian)磁線圈(quan)(quan)(quan)上的(de)(de)電(dian)(dian)壓來控(kong)制(zhi),由(you)(you)此,電(dian)(dian)磁線圈(quan)(quan)(quan)的(de)(de)電(dian)(dian)壓就控(kong)制(zhi)了膨(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)的(de)(de)流量。2、電(dian)(dian)動(dong)式(shi)電(dian)(dian)子膨(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)就是利用(yong)步進(jin)電(dian)(dian)機(ji)驅動(dong)的(de)(de),該(gai)裝(zhuang)置通(tong)過給步進(jin)電(dian)(dian)機(ji)提供的(de)(de)邏輯數字信(xin)號(hao)來控(kong)制(zhi)進(jin)內部的(de)(de)螺紋驅動(dong)閥(fa)針運動(dong),由(you)(you)此實現閥(fa)門流量與面積的(de)(de)控(kong)制(zhi)。
二、電子膨脹閥的作用是什么
電(dian)子膨(peng)脹(zhang)(zhang)閥(fa)(fa)廣(guang)泛應(ying)用(yong)(yong)于空(kong)調(diao)(diao)(diao)、冷(leng)(leng)(leng)庫、商(shang)業制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)等領域,應(ying)用(yong)(yong)最(zui)多(duo)的(de)(de)(de)(de)就是空(kong)調(diao)(diao)(diao)領域,空(kong)調(diao)(diao)(diao)電(dian)子膨(peng)脹(zhang)(zhang)閥(fa)(fa)是空(kong)調(diao)(diao)(diao)系(xi)統(tong)(tong)中的(de)(de)(de)(de)一個重(zhong)要(yao)組件(jian),其主要(yao)作用(yong)(yong)是控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)進入室(shi)(shi)(shi)內(nei)蒸發器(qi)(qi)的(de)(de)(de)(de)流(liu)(liu)(liu)量,從而實現(xian)空(kong)調(diao)(diao)(diao)系(xi)統(tong)(tong)的(de)(de)(de)(de)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)效(xiao)(xiao)(xiao)果,具體來說(shuo),作用(yong)(yong)主要(yao)有以(yi)下(xia)幾點:1、控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)空(kong)調(diao)(diao)(diao)系(xi)統(tong)(tong)的(de)(de)(de)(de)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)效(xiao)(xiao)(xiao)果:電(dian)子膨(peng)脹(zhang)(zhang)閥(fa)(fa)可以(yi)根(gen)(gen)據(ju)室(shi)(shi)(shi)內(nei)溫(wen)(wen)(wen)度(du)(du)(du)(du)(du)的(de)(de)(de)(de)變(bian)化(hua),自動(dong)調(diao)(diao)(diao)節制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)的(de)(de)(de)(de)流(liu)(liu)(liu)量,保持(chi)室(shi)(shi)(shi)內(nei)溫(wen)(wen)(wen)度(du)(du)(du)(du)(du)穩定,當室(shi)(shi)(shi)內(nei)溫(wen)(wen)(wen)度(du)(du)(du)(du)(du)升高(gao)時(shi),膨(peng)脹(zhang)(zhang)閥(fa)(fa)會減少制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)的(de)(de)(de)(de)流(liu)(liu)(liu)量,降(jiang)(jiang)低蒸發器(qi)(qi)的(de)(de)(de)(de)溫(wen)(wen)(wen)度(du)(du)(du)(du)(du),從而降(jiang)(jiang)低室(shi)(shi)(shi)內(nei)溫(wen)(wen)(wen)度(du)(du)(du)(du)(du);當室(shi)(shi)(shi)內(nei)溫(wen)(wen)(wen)度(du)(du)(du)(du)(du)下(xia)降(jiang)(jiang)時(shi),膨(peng)脹(zhang)(zhang)閥(fa)(fa)會增(zeng)加制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)的(de)(de)(de)(de)流(liu)(liu)(liu)量,提(ti)高(gao)蒸發器(qi)(qi)的(de)(de)(de)(de)溫(wen)(wen)(wen)度(du)(du)(du)(du)(du),從而提(ti)高(gao)室(shi)(shi)(shi)內(nei)溫(wen)(wen)(wen)度(du)(du)(du)(du)(du)。2、提(ti)高(gao)空(kong)調(diao)(diao)(diao)系(xi)統(tong)(tong)的(de)(de)(de)(de)效(xiao)(xiao)(xiao)率(lv):由(you)于電(dian)子膨(peng)脹(zhang)(zhang)閥(fa)(fa)能夠(gou)根(gen)(gen)據(ju)室(shi)(shi)(shi)內(nei)溫(wen)(wen)(wen)度(du)(du)(du)(du)(du)變(bian)化(hua)調(diao)(diao)(diao)節制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)的(de)(de)(de)(de)流(liu)(liu)(liu)量,使得制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)在(zai)蒸發器(qi)(qi)內(nei)的(de)(de)(de)(de)溫(wen)(wen)(wen)度(du)(du)(du)(du)(du)和壓力始終保持(chi)在(zai)最(zui)佳狀態(tai),這樣可以(yi)最(zui)大限度(du)(du)(du)(du)(du)地(di)提(ti)高(gao)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)的(de)(de)(de)(de)換熱效(xiao)(xiao)(xiao)果,提(ti)高(gao)空(kong)調(diao)(diao)(diao)系(xi)統(tong)(tong)的(de)(de)(de)(de)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)效(xiao)(xiao)(xiao)率(lv)。3、提(ti)供更加精確的(de)(de)(de)(de)控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)和調(diao)(diao)(diao)節:傳統(tong)(tong)的(de)(de)(de)(de)機械膨(peng)脹(zhang)(zhang)閥(fa)(fa)通常通過調(diao)(diao)(diao)整彈簧或調(diao)(diao)(diao)節裝(zhuang)置來控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)的(de)(de)(de)(de)流(liu)(liu)(liu)量,而電(dian)子膨(peng)脹(zhang)(zhang)閥(fa)(fa)則可以(yi)根(gen)(gen)據(ju)精準(zhun)(zhun)的(de)(de)(de)(de)電(dian)子信號(hao)來調(diao)(diao)(diao)節流(liu)(liu)(liu)量,具有更高(gao)的(de)(de)(de)(de)準(zhun)(zhun)確性和穩定性。
三、電子膨脹閥與毛細管優缺點對比
1、毛細管的優點:(1)毛細管結構簡單,且沒有活動部件,因此其故障率相對較低,有效減少了維修和更換的頻率。(2)毛細管的使用壽命較長,在正常使用情況下,可以穩定運行多年。(3)毛細管的價格比較便宜。2、毛細管的缺點:毛細管的缺點主要是其流量不可調節,無法適應不同的工況需求,同時易受制冷劑壓力波動影響,進而導致空調性能下降。3、電子膨脹閥的優點:(1)電子膨脹閥可以根據室內溫度變化實時調節制冷劑的流量,從而更加精確地控制室內溫度,提供更舒適的使用體驗。(2)電子膨脹閥還具備更廣泛的適應性,能夠適應不同負荷條件下的制冷需求,提供更高效的制冷效果。(3)電子膨脹閥還具有快速響應、低噪音、抗壓力波動等優點。4、電子膨脹閥的缺點:電子膨脹閥的缺點主要就是價格較高,此外,相比毛細管,電子膨脹閥存在著更多機械和電子元件,其故障率相對較高,可能需要更頻繁的維修和更換。總體來說,毛細管在耐用性和價格方面具備優勢,而電子膨脹閥在性能和適應性方面更勝一籌,如果您需要采購電子膨脹閥,可以先來了解一下電子膨脹閥十大品牌。
四、電子膨脹閥怎么測量好壞
如果(guo)空調制冷效果(guo)差,應(ying)(ying)考慮是(shi)否是(shi)電(dian)(dian)(dian)子(zi)(zi)膨(peng)(peng)(peng)(peng)(peng)脹(zhang)(zhang)閥(fa)(fa)壞(huai)了,電(dian)(dian)(dian)子(zi)(zi)膨(peng)(peng)(peng)(peng)(peng)脹(zhang)(zhang)閥(fa)(fa)的(de)(de)(de)好壞(huai)檢測(ce)方法是(shi):正(zheng)常(chang)的(de)(de)(de)電(dian)(dian)(dian)子(zi)(zi)膨(peng)(peng)(peng)(peng)(peng)脹(zhang)(zhang)閥(fa)(fa)在(zai)(zai)插電(dian)(dian)(dian)后(hou)(hou)(hou)有(you)(you)“咯嗒”的(de)(de)(de)響聲(sheng)(sheng)。若(ruo)沒有(you)(you)響聲(sheng)(sheng),或在(zai)(zai)制冷時膨(peng)(peng)(peng)(peng)(peng)脹(zhang)(zhang)閥(fa)(fa)在(zai)(zai)壓縮(suo)機工作后(hou)(hou)(hou)便開(kai)始結霜,則應(ying)(ying)檢測(ce)其線(xian)圈及供電(dian)(dian)(dian)是(shi)否正(zheng)常(chang)(12V脈沖(chong)電(dian)(dian)(dian))。若(ruo)電(dian)(dian)(dian)壓正(zheng)常(chang),則說明電(dian)(dian)(dian)腦(nao)板正(zheng)常(chang),若(ruo)此時膨(peng)(peng)(peng)(peng)(peng)脹(zhang)(zhang)閥(fa)(fa)內(nei)無聲(sheng)(sheng)音(yin),則是(shi)膨(peng)(peng)(peng)(peng)(peng)脹(zhang)(zhang)閥(fa)(fa)不良,這(zhe)時先測(ce)量電(dian)(dian)(dian)子(zi)(zi)膨(peng)(peng)(peng)(peng)(peng)脹(zhang)(zhang)閥(fa)(fa)線(xian)圈直流電(dian)(dian)(dian)阻(zu),若(ruo)正(zheng)常(chang),則可(ke)能是(shi)閥(fa)(fa)體內(nei)臟堵,可(ke)用高壓氣體進行吹洗。另外,在(zai)(zai)斷電(dian)(dian)(dian)時電(dian)(dian)(dian)子(zi)(zi)膨(peng)(peng)(peng)(peng)(peng)脹(zhang)(zhang)閥(fa)(fa)應(ying)(ying)復位,這(zhe)時可(ke)通過(guo)聽(ting)聲(sheng)(sheng)音(yin)或感覺(jue)是(shi)否振動來判(pan)(pan)定閥(fa)(fa)針(zhen)是(shi)否有(you)(you)問題。在(zai)(zai)關機狀態(tai)下(xia),閥(fa)(fa)芯一般處(chu)(chu)在(zai)(zai)最大開(kai)度,此時斷開(kai)線(xian)圈引線(xian),然后(hou)(hou)(hou)開(kai)機運(yun)行,如果(guo)此時制冷劑無法通過(guo),可(ke)以判(pan)(pan)定閥(fa)(fa)針(zhen)卡死(si)。正(zheng)常(chang)情況下(xia),用手摸電(dian)(dian)(dian)子(zi)(zi)膨(peng)(peng)(peng)(peng)(peng)脹(zhang)(zhang)閥(fa)(fa)的(de)(de)(de)兩(liang)端,進口(kou)(kou)處(chu)(chu)是(shi)溫的(de)(de)(de),出口(kou)(kou)處(chu)(chu)是(shi)涼的(de)(de)(de)。