一、電子膨脹閥控制原理是什么
電(dian)(dian)(dian)(dian)子膨(peng)(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)是一種(zhong)電(dian)(dian)(dian)(dian)子控(kong)(kong)制的(de)節流元件,它可以按照預設程序調節蒸發(fa)器供液量,目前(qian)電(dian)(dian)(dian)(dian)子膨(peng)(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)主要有電(dian)(dian)(dian)(dian)磁(ci)(ci)式(shi)膨(peng)(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)和電(dian)(dian)(dian)(dian)動式(shi)膨(peng)(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)兩(liang)種(zhong),兩(liang)者的(de)工作原理有些不同:1、電(dian)(dian)(dian)(dian)磁(ci)(ci)式(shi)電(dian)(dian)(dian)(dian)子膨(peng)(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)內部具有電(dian)(dian)(dian)(dian)磁(ci)(ci)線圈,通(tong)(tong)過電(dian)(dian)(dian)(dian)磁(ci)(ci)線圈作為媒介來控(kong)(kong)制系統流量。在電(dian)(dian)(dian)(dian)磁(ci)(ci)線圈通(tong)(tong)電(dian)(dian)(dian)(dian)之前(qian),閥(fa)針(zhen)處(chu)于開(kai)啟(qi)狀態,在電(dian)(dian)(dian)(dian)磁(ci)(ci)線圈通(tong)(tong)電(dian)(dian)(dian)(dian)之后(hou),閥(fa)針(zhen)的(de)開(kai)啟(qi)程度由電(dian)(dian)(dian)(dian)磁(ci)(ci)線圈上的(de)電(dian)(dian)(dian)(dian)壓來控(kong)(kong)制,由此,電(dian)(dian)(dian)(dian)磁(ci)(ci)線圈的(de)電(dian)(dian)(dian)(dian)壓就控(kong)(kong)制了(le)膨(peng)(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)的(de)流量。2、電(dian)(dian)(dian)(dian)動式(shi)電(dian)(dian)(dian)(dian)子膨(peng)(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)就是利用步(bu)進電(dian)(dian)(dian)(dian)機驅動的(de),該裝置通(tong)(tong)過給步(bu)進電(dian)(dian)(dian)(dian)機提供的(de)邏(luo)輯數字信號(hao)來控(kong)(kong)制進內部的(de)螺紋驅動閥(fa)針(zhen)運動,由此實現閥(fa)門流量與(yu)面積的(de)控(kong)(kong)制。
二、電子膨脹閥的作用是什么
電子(zi)膨(peng)脹(zhang)(zhang)閥(fa)(fa)廣泛(fan)應用(yong)于(yu)(yu)空(kong)調(diao)、冷(leng)(leng)(leng)(leng)庫、商業制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)等領域,應用(yong)最(zui)多的(de)(de)(de)(de)(de)(de)(de)(de)就是(shi)(shi)空(kong)調(diao)領域,空(kong)調(diao)電子(zi)膨(peng)脹(zhang)(zhang)閥(fa)(fa)是(shi)(shi)空(kong)調(diao)系(xi)統中的(de)(de)(de)(de)(de)(de)(de)(de)一個(ge)重要組件,其主(zhu)(zhu)要作用(yong)是(shi)(shi)控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑(ji)(ji)進入室(shi)內(nei)(nei)蒸(zheng)發(fa)器的(de)(de)(de)(de)(de)(de)(de)(de)流(liu)量(liang),從(cong)而實(shi)現空(kong)調(diao)系(xi)統的(de)(de)(de)(de)(de)(de)(de)(de)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)效(xiao)果,具體來(lai)說,作用(yong)主(zhu)(zhu)要有以(yi)下幾點:1、控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)空(kong)調(diao)系(xi)統的(de)(de)(de)(de)(de)(de)(de)(de)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)效(xiao)果:電子(zi)膨(peng)脹(zhang)(zhang)閥(fa)(fa)可(ke)(ke)以(yi)根(gen)據(ju)(ju)室(shi)內(nei)(nei)溫(wen)度的(de)(de)(de)(de)(de)(de)(de)(de)變化,自動(dong)調(diao)節制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)流(liu)量(liang),保持(chi)室(shi)內(nei)(nei)溫(wen)度穩定,當室(shi)內(nei)(nei)溫(wen)度升(sheng)高(gao)(gao)時,膨(peng)脹(zhang)(zhang)閥(fa)(fa)會(hui)減少制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)流(liu)量(liang),降(jiang)(jiang)低蒸(zheng)發(fa)器的(de)(de)(de)(de)(de)(de)(de)(de)溫(wen)度,從(cong)而降(jiang)(jiang)低室(shi)內(nei)(nei)溫(wen)度;當室(shi)內(nei)(nei)溫(wen)度下降(jiang)(jiang)時,膨(peng)脹(zhang)(zhang)閥(fa)(fa)會(hui)增加制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)流(liu)量(liang),提(ti)高(gao)(gao)蒸(zheng)發(fa)器的(de)(de)(de)(de)(de)(de)(de)(de)溫(wen)度,從(cong)而提(ti)高(gao)(gao)室(shi)內(nei)(nei)溫(wen)度。2、提(ti)高(gao)(gao)空(kong)調(diao)系(xi)統的(de)(de)(de)(de)(de)(de)(de)(de)效(xiao)率:由于(yu)(yu)電子(zi)膨(peng)脹(zhang)(zhang)閥(fa)(fa)能夠根(gen)據(ju)(ju)室(shi)內(nei)(nei)溫(wen)度變化調(diao)節制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)流(liu)量(liang),使得制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑(ji)(ji)在(zai)(zai)蒸(zheng)發(fa)器內(nei)(nei)的(de)(de)(de)(de)(de)(de)(de)(de)溫(wen)度和壓(ya)力始終保持(chi)在(zai)(zai)最(zui)佳狀態,這樣可(ke)(ke)以(yi)最(zui)大限(xian)度地提(ti)高(gao)(gao)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)換熱效(xiao)果,提(ti)高(gao)(gao)空(kong)調(diao)系(xi)統的(de)(de)(de)(de)(de)(de)(de)(de)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)效(xiao)率。3、提(ti)供(gong)更加精(jing)確的(de)(de)(de)(de)(de)(de)(de)(de)控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)和調(diao)節:傳統的(de)(de)(de)(de)(de)(de)(de)(de)機(ji)械膨(peng)脹(zhang)(zhang)閥(fa)(fa)通常(chang)通過(guo)調(diao)整彈簧或調(diao)節裝置來(lai)控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)流(liu)量(liang),而電子(zi)膨(peng)脹(zhang)(zhang)閥(fa)(fa)則可(ke)(ke)以(yi)根(gen)據(ju)(ju)精(jing)準的(de)(de)(de)(de)(de)(de)(de)(de)電子(zi)信(xin)號(hao)來(lai)調(diao)節流(liu)量(liang),具有更高(gao)(gao)的(de)(de)(de)(de)(de)(de)(de)(de)準確性(xing)和穩定性(xing)。
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
如果空調制(zhi)冷(leng)效果差,應考慮是(shi)(shi)(shi)(shi)否是(shi)(shi)(shi)(shi)電(dian)(dian)(dian)子(zi)(zi)膨(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)(fa)壞了,電(dian)(dian)(dian)子(zi)(zi)膨(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)(fa)的(de)(de)好壞檢(jian)測(ce)方法是(shi)(shi)(shi)(shi):正常(chang)(chang)(chang)(chang)的(de)(de)電(dian)(dian)(dian)子(zi)(zi)膨(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)(fa)在(zai)(zai)插(cha)電(dian)(dian)(dian)后(hou)(hou)有“咯嗒”的(de)(de)響聲(sheng)。若(ruo)沒有響聲(sheng),或在(zai)(zai)制(zhi)冷(leng)時(shi)(shi)膨(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)(fa)在(zai)(zai)壓(ya)縮機工(gong)作后(hou)(hou)便開始結霜,則(ze)應檢(jian)測(ce)其線(xian)圈(quan)及供電(dian)(dian)(dian)是(shi)(shi)(shi)(shi)否正常(chang)(chang)(chang)(chang)(12V脈(mo)沖電(dian)(dian)(dian))。若(ruo)電(dian)(dian)(dian)壓(ya)正常(chang)(chang)(chang)(chang),則(ze)說明電(dian)(dian)(dian)腦板正常(chang)(chang)(chang)(chang),若(ruo)此時(shi)(shi)膨(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)(fa)內無聲(sheng)音,則(ze)是(shi)(shi)(shi)(shi)膨(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)(fa)不良(liang),這(zhe)時(shi)(shi)先測(ce)量(liang)電(dian)(dian)(dian)子(zi)(zi)膨(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)(fa)線(xian)圈(quan)直(zhi)流電(dian)(dian)(dian)阻(zu),若(ruo)正常(chang)(chang)(chang)(chang),則(ze)可能是(shi)(shi)(shi)(shi)閥(fa)(fa)體內臟堵,可用(yong)高壓(ya)氣體進(jin)行(xing)吹洗(xi)。另外,在(zai)(zai)斷電(dian)(dian)(dian)時(shi)(shi)電(dian)(dian)(dian)子(zi)(zi)膨(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)(fa)應復位,這(zhe)時(shi)(shi)可通過(guo)聽聲(sheng)音或感(gan)覺(jue)是(shi)(shi)(shi)(shi)否振動來判定閥(fa)(fa)針是(shi)(shi)(shi)(shi)否有問題。在(zai)(zai)關機狀態下,閥(fa)(fa)芯一般處(chu)在(zai)(zai)最大開度,此時(shi)(shi)斷開線(xian)圈(quan)引線(xian),然(ran)后(hou)(hou)開機運行(xing),如果此時(shi)(shi)制(zhi)冷(leng)劑無法通過(guo),可以判定閥(fa)(fa)針卡死。正常(chang)(chang)(chang)(chang)情況(kuang)下,用(yong)手摸電(dian)(dian)(dian)子(zi)(zi)膨(peng)(peng)脹(zhang)(zhang)(zhang)閥(fa)(fa)的(de)(de)兩端,進(jin)口處(chu)是(shi)(shi)(shi)(shi)溫的(de)(de),出口處(chu)是(shi)(shi)(shi)(shi)涼(liang)的(de)(de)。