正確地連(lian)接(jie)兩(liang)位三通日本(ben)SMC電磁閥運轉(zhuan)，兩(liang)位三通電磁閥的(de)接(jie)線方(fang)法

當(dang)(dang)我(wo)們使用雙向(xiang)電(dian)機時(shi)(shi)(shi)，開閥線(xian)與零線(xian)導通時(shi)(shi)(shi)，電(dian)機即往(wang)左(zuo)轉（或(huo)往(wang)右(you)轉），閥門(men)(men)即往(wang)開閥方向(xiang)運動(dong)，當(dang)(dang)閥門(men)(men)打開時(shi)(shi)(shi)，內置的微(wei)(wei)動(dong)開關(guan)(guan)會(hui)(hui)關(guan)(guan)閉(bi)(bi)電(dian)源(yuan)，電(dian)機停(ting)止工(gong)(gong)作。當(dang)(dang)關(guan)(guan)閥線(xian)與零線(xian)導通時(shi)(shi)(shi)，電(dian)機即往(wang)右(you)轉（或(huo)往(wang)左(zuo)轉），當(dang)(dang)閥門(men)(men)關(guan)(guan)閉(bi)(bi)時(shi)(shi)(shi)，內置的微(wei)(wei)動(dong)開關(guan)(guan)會(hui)(hui)關(guan)(guan)閉(bi)(bi)電(dian)源(yuan)，電(dian)機停(ting)止工(gong)(gong)作，如此(ci)循環，所以雙向(xiang)電(dian)機會(hui)(hui)使閥門(men)(men)左(zuo)、右(you)工(gong)(gong)作，長期工(gong)(gong)作閥門(men)(men)也不會(hui)(hui)出現偏心，同時(shi)(shi)(shi)因(yin)為一(yi)些外部原(yuan)因(yin)造成閥門(men)(men)球(qiu)體(ti)卡死(si)時(shi)(shi)(shi)，電(dian)機也會(hui)(hui)左(zuo)、右(you)同時(shi)(shi)(shi)工(gong)(gong)作，自行復位。

當(dang)我們(men)使用(yong)(yong)單相電(dian)機(ji)(ji)時(shi)(shi)(shi)，即電(dian)機(ji)(ji)只能(neng)往一個方向運(yun)轉(zhuan)時(shi)(shi)(shi)，開(kai)(kai)(kai)閥(fa)(fa)線(xian)與零(ling)線(xian)導(dao)通時(shi)(shi)(shi)，電(dian)機(ji)(ji)開(kai)(kai)(kai)始(shi)工作，當(dang)運(yun)轉(zhuan)至90度位(wei)置(zhi)時(shi)(shi)(shi)，中心軸帶動定位(wei)微(wei)動開(kai)(kai)(kai)關(guan)，通過微(wei)動開(kai)(kai)(kai)關(guan)的常開(kai)(kai)(kai)、常閉(bi)點(dian)，將開(kai)(kai)(kai)閥(fa)(fa)線(xian)與零(ling)線(xian)斷開(kai)(kai)(kai)，同時(shi)(shi)(shi)將關(guan)閥(fa)(fa)線(xian)與零(ling)線(xian)導(dao)通。當(dang)關(guan)閥(fa)(fa)線(xian)與零(ling)線(xian)導(dao)通時(shi)(shi)(shi)，電(dian)機(ji)(ji)繼續運(yun)轉(zhuan)，如(ru)此循(xun)環(huan)；使用(yong)(yong)單向電(dian)機(ji)(ji)時(shi)(shi)(shi)，如(ru)果閥(fa)(fa)門球體卡死(si)，電(dian)機(ji)(ji)始(shi)終通電(dian)不能(neng)運(yun)轉(zhuan)時(shi)(shi)(shi)，此時(shi)(shi)(shi)執(zhi)行器極易發(fa)生(sheng)故障，所以我們(men)不建議用(yong)(yong)戶使用(yong)(yong)單向電(dian)機(ji)(ji)的電(dian)動執(zhi)行器。

利用低壓直(zhi)(zhi)流電(dian)(dian)機正(zheng)、反轉(zhuan)工作來(lai)實(shi)現閥(fa)門的(de)(de)三線兩控(kong)控(kong)制時(shi)，一(yi)般(ban)是通過一(yi)只8腳繼(ji)電(dian)(dian)器來(lai)進行切換，即開(kai)閥(fa)時(shi)吸合(he)繼(ji)電(dian)(dian)器，導(dao)通常(chang)閉(bi)點，關(guan)閥(fa)時(shi)利用繼(ji)電(dian)(dian)器的(de)(de)常(chang)開(kai)點，將(jiang)電(dian)(dian)機放(fang)在繼(ji)電(dian)(dian)器的(de)(de)公共(gong)端與定(ding)位開(kai)關(guan)匹配來(lai)實(shi)現三線兩控(kong)。一(yi)般(ban)直(zhi)(zhi)流電(dian)(dian)機是有刷的(de)(de)，一(yi)般(ban)電(dian)(dian)刷的(de)(de)使用壽(shou)命在2-2.5萬次，所以在選購產品時(shi)，要根據(ju)現場的(de)(de)需要來(lai)判定(ding)。

三線兩控(kong)電動執行一(yi)般(ban)(ban)沒有復(fu)雜的(de)控(kong)制電路，交(jiao)流型(xing)電機一(yi)般(ban)(ban)也不需要繼電器(qi)等電子元器(qi)件(jian)來組成控(kong)制電路，所以(yi)故障率更低，更節能(neng)、成本略低，在條件(jian)允許的(de)情(qing)況，我們建議用戶盡量(liang)選用三線兩控(kong)執行器(qi)。

三線(xian)(xian)(xian)(xian)(xian)一(yi)控(kong)電(dian)(dian)動球閥(fa)(fa)一(yi)般是指電(dian)(dian)動閥(fa)(fa)的(de)開、關控(kong)制(zhi)由(you)一(yi)根線(xian)(xian)(xian)(xian)(xian)來(lai)完成，即三根線(xian)(xian)(xian)(xian)(xian)分別是零線(xian)(xian)(xian)(xian)(xian)（或(huo)(huo)公共(gong)線(xian)(xian)(xian)(xian)(xian)）、火線(xian)(xian)(xian)(xian)(xian)（或(huo)(huo)正(zheng)極）、控(kong)制(zhi)線(xian)(xian)(xian)(xian)(xian)（開閥(fa)(fa)線(xian)(xian)(xian)(xian)(xian)或(huo)(huo)關閉(bi)(bi)(bi)線(xian)(xian)(xian)(xian)(xian)），三線(xian)(xian)(xian)(xian)(xian)一(yi)控(kong)閥(fa)(fa)又(you)分常(chang)開閥(fa)(fa)和常(chang)閉(bi)(bi)(bi)閥(fa)(fa)，常(chang)開閥(fa)(fa)即控(kong)制(zhi)線(xian)(xian)(xian)(xian)(xian)不(bu)通電(dian)(dian)時(shi)閥(fa)(fa)門是處于開啟(qi)狀態，相反常(chang)閉(bi)(bi)(bi)閥(fa)(fa)即控(kong)制(zhi)線(xian)(xian)(xian)(xian)(xian)不(bu)通電(dian)(dian)時(shi)為關閉(bi)(bi)(bi)狀態。一(yi)般情況下(xia)，多數廠商提供的(de)均(jun)為常(chang)閉(bi)(bi)(bi)閥(fa)(fa)，即控(kong)制(zhi)線(xian)(xian)(xian)(xian)(xian)通電(dian)(dian)時(shi)閥(fa)(fa)門打(da)開。常(chang)閉(bi)(bi)(bi)閥(fa)(fa)的(de)接線(xian)(xian)(xian)(xian)(xian)為零線(xian)(xian)(xian)(xian)(xian)（或(huo)(huo)公共(gong)線(xian)(xian)(xian)(xian)(xian)）、火線(xian)(xian)(xian)(xian)(xian)（或(huo)(huo)正(zheng)極）、控(kong)制(zhi)線(xian)(xian)(xian)(xian)(xian)（開閥(fa)(fa)線(xian)(xian)(xian)(xian)(xian)）。

3、二線(xian)制斷(duan)電(dian)(dian)(dian)(dian)開閥電(dian)(dian)(dian)(dian)動球閥，即執(zhi)(zhi)行(xing)器(qi)(qi)只有(you)零線(xian)（或(huo)(huo)公(gong)共線(xian)）、火線(xian)（或(huo)(huo)正(zheng)極）兩根線(xian)，執(zhi)(zhi)行(xing)器(qi)(qi)一(yi)般為DC5V電(dian)(dian)(dian)(dian)機(ji)，利用法拉(la)電(dian)(dian)(dian)(dian)容或(huo)(huo)鋰(li)電(dian)(dian)(dian)(dian)池，在斷(duan)電(dian)(dian)(dian)(dian)的情況下給執(zhi)(zhi)行(xing)器(qi)(qi)電(dian)(dian)(dian)(dian)機(ji)提供(gong)電(dian)(dian)(dian)(dian)源，使執(zhi)(zhi)行(xing)器(qi)(qi)電(dian)(dian)(dian)(dian)機(ji)工作，開啟閥門(men)。此類執(zhi)(zhi)行(xing)器(qi)(qi)的使用壽(shou)命受直(zhi)流電(dian)(dian)(dian)(dian)機(ji)電(dian)(dian)(dian)(dian)刷、法拉(la)電(dian)(dian)(dian)(dian)容（或(huo)(huo)鋰(li)電(dian)(dian)(dian)(dian)池）壽(shou)命影響(xiang)較(jiao)大，一(yi)般使用在一(yi)些特殊(shu)場(chang)合(he)，比如太陽能采(cai)暖設備(bei)，煤改電(dian)(dian)(dian)(dian)設備(bei)，需要斷(duan)電(dian)(dian)(dian)(dian)時閥門(men)自行(xing)打開的地方。

4、二線制通電(dian)(dian)(dian)(dian)(dian)(dian)開(kai)(kai)閥(fa)電(dian)(dian)(dian)(dian)(dian)(dian)動球閥(fa)，跟二線制斷(duan)電(dian)(dian)(dian)(dian)(dian)(dian)開(kai)(kai)閥(fa)球閥(fa)正好相反，即在通電(dian)(dian)(dian)(dian)(dian)(dian)的(de)情況(kuang)下(xia)(xia)電(dian)(dian)(dian)(dian)(dian)(dian)動球閥(fa)打開(kai)(kai)，在斷(duan)電(dian)(dian)(dian)(dian)(dian)(dian)的(de)情況(kuang)下(xia)(xia)，利用(yong)法(fa)拉電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)（或鋰(li)電(dian)(dian)(dian)(dian)(dian)(dian)池）給電(dian)(dian)(dian)(dian)(dian)(dian)機供電(dian)(dian)(dian)(dian)(dian)(dian)，使閥(fa)門(men)關(guan)閉(bi)。此類執行器的(de)使用(yong)壽(shou)命(ming)受直流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)機電(dian)(dian)(dian)(dian)(dian)(dian)刷、法(fa)拉電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)（或鋰(li)電(dian)(dian)(dian)(dian)(dian)(dian)池）壽(shou)命(ming)影響較大(da)，一般也是使用(yong)在一些特殊(shu)場合，比(bi)如太(tai)陽能采暖設備，煤改電(dian)(dian)(dian)(dian)(dian)(dian)設備，需要斷(duan)電(dian)(dian)(dian)(dian)(dian)(dian)時(shi)閥(fa)門(men)自行打開(kai)(kai)的(de)地方。

5、關于(yu)電(dian)動球閥(fa)(fa)電(dian)機電(dian)壓現在種類非常多，三線兩控、三線一控執(zhi)行器均(jun)可提供(gong)AC220V、AC110V、AC24V、AC12V，DC24V、DC12V、DC5V等(deng)，二線制(zhi)斷(duan)電(dian)開閥(fa)(fa)、二線制(zhi)通電(dian)開閥(fa)(fa)執(zhi)行器可提供(gong)AC85-265V，AC/DC6-24V通用(yong)型，用(yong)戶的(de)選擇性還是(shi)非常大的(de)。

6、關(guan)于主要(yao)用于兩(liang)聯供系統、風(feng)機(ji)盤(pan)管(guan)、太陽能供熱、煤改電(dian)(dian)行業、供熱行業的小口(kou)徑(jing)電(dian)(dian)動(dong)球(qiu)閥(fa)，一般驅動(dong)扭力(li)在(zai)4-6Nm，閥(fa)門口(kou)徑(jing)一般在(zai)DN15-DN40,超過(guo)DN40管(guan)路建議使用更(geng)大驅動(dong)扭力(li)的電(dian)(dian)動(dong)執(zhi)行器(qi)。

兩(liang)位(wei)三(san)通電磁閥是一種常見的電磁閥，其(qi)接線(xian)方(fang)(fang)法(fa)對于設(she)備的正(zheng)常運行(xing)至關(guan)重(zhong)要。本文將詳(xiang)細介(jie)紹(shao)兩(liang)位(wei)三(san)通電磁閥的接線(xian)方(fang)(fang)法(fa)，并給(gei)出相應的注(zhu)意事項，以確保(bao)設(she)備的穩定(ding)運行(xing)。

　一、引言

　兩位(wei)三(san)通(tong)電(dian)(dian)磁(ci)(ci)閥是(shi)一種(zhong)常(chang)見的電(dian)(dian)磁(ci)(ci)閥，其作(zuo)用(yong)是(shi)在電(dian)(dian)磁(ci)(ci)力的作(zuo)用(yong)下，控(kong)制流(liu)體流(liu)向(xiang)和(he)切換管道(dao)。這種(zhong)電(dian)(dian)磁(ci)(ci)閥廣泛(fan)應(ying)用(yong)于(yu)各種(zhong)工業(ye)設備(bei)和(he)系統(tong)中，如化工、石油、電(dian)(dian)力等。正(zheng)(zheng)確地連接兩位(wei)三(san)通(tong)電(dian)(dian)磁(ci)(ci)閥對(dui)于(yu)設備(bei)的正(zheng)(zheng)常(chang)運轉具(ju)有重要意義。

正確地連接兩(liang)位三(san)通電磁閥運(yun)轉，兩(liang)位三(san)通電磁閥的接線(xian)方(fang)法

　二、接線方式

　（1）標準接線方式

　按照(zhao)標準接(jie)(jie)線方(fang)式，將(jiang)電(dian)源(yuan)、電(dian)動機和(he)控制線分(fen)別接(jie)(jie)入(ru)電(dian)路(lu)中(zhong)。具體來說(shuo)，將(jiang)電(dian)源(yuan)的(de)正負(fu)極(ji)分(fen)別接(jie)(jie)入(ru)電(dian)磁(ci)閥(fa)的(de)輸(shu)入(ru)端，電(dian)動機和(he)控制線接(jie)(jie)入(ru)電(dian)磁(ci)閥(fa)的(de)輸(shu)出端。這樣接(jie)(jie)線的(de)目的(de)是為了確(que)保電(dian)磁(ci)閥(fa)能夠(gou)正常工作，并能夠(gou)根據控制信(xin)號(hao)的(de)變(bian)化(hua)進行(xing)開關切換。

　（2）確認輸出方向

　在(zai)接線前，需要確認電(dian)(dian)(dian)磁閥(fa)的輸出方向。一般來(lai)說，兩位三通(tong)電(dian)(dian)(dian)磁閥(fa)的輸出方向可(ke)以(yi)通(tong)過查(cha)看電(dian)(dian)(dian)磁閥(fa)上(shang)的箭(jian)頭標識來(lai)判斷。將(jiang)線圈末(mo)端朝向閥(fa)門(men)，使得線圈通(tong)電(dian)(dian)(dian)時能夠推動閥(fa)芯(xin)移動，使流(liu)體流(liu)向的管道。

　（3）安裝導管

　在安(an)裝電磁閥前(qian)后，需要分(fen)別安(an)裝相應的(de)(de)(de)導(dao)管(guan)(guan)。導(dao)管(guan)(guan)的(de)(de)(de)作(zuo)用是(shi)引導(dao)流(liu)(liu)(liu)體流(liu)(liu)(liu)向，確(que)保(bao)電磁閥切換(huan)時(shi)(shi)流(liu)(liu)(liu)體的(de)(de)(de)穩定流(liu)(liu)(liu)動。安(an)裝導(dao)管(guan)(guan)時(shi)(shi)需確(que)保(bao)導(dao)管(guan)(guan)暢通(tong)，無堵塞現象(xiang)，以(yi)免影(ying)響設備的(de)(de)(de)正常運行。

　（4）檢查氣密性

　接線完成后(hou)，需要檢(jian)查電(dian)磁(ci)(ci)閥的(de)氣密(mi)性。具體方(fang)法為用手(shou)轉動(dong)電(dian)磁(ci)(ci)閥，觀察(cha)是否有漏(lou)氣現象。若有漏(lou)氣現象，需要及時調整(zheng)接線或(huo)更(geng)換電(dian)磁(ci)(ci)閥，以(yi)確(que)保設備的(de)氣密(mi)性。

　三、注意事項

　1.在安(an)裝過程中(zhong)，應注意電磁閥的工作原理，避免損壞電器元(yuan)件。例如，應確保電磁閥的線圈與電源(yuan)匹配，避免過電壓(ya)或過電流導致線圈燒毀(hui)。

　2.在維護電磁閥(fa)(fa)時，應注意(yi)清洗(xi)污物和雜(za)質，避(bi)免堵塞電磁閥(fa)(fa)。同時，應定期檢查電磁閥(fa)(fa)的密封性能，如發現密封不良應及時更(geng)換(huan)配(pei)件。

　3.在使(shi)用(yong)電磁(ci)閥(fa)時(shi)，應(ying)注意(yi)電磁(ci)閥(fa)的(de)(de)保養和(he)維修，延(yan)長其(qi)使(shi)用(yong)壽命。例如，應(ying)定期檢查電磁(ci)閥(fa)的(de)(de)潤滑(hua)情況，確保機(ji)械部件(jian)運轉(zhuan)順(shun)暢；對于(yu)長時(shi)間不使(shi)用(yong)的(de)(de)設備，應(ying)斷開電源，避免線圈受潮(chao)或老化。

　兩位三通電(dian)(dian)(dian)磁(ci)閥(fa)(fa)的(de)正(zheng)(zheng)確接線方(fang)法是(shi)確保設備正(zheng)(zheng)常(chang)運行的(de)關鍵之一。在接線過程(cheng)中，應(ying)按(an)照標準接線方(fang)式接入電(dian)(dian)(dian)源(yuan)、電(dian)(dian)(dian)動機和(he)控制線，并注(zhu)意(yi)確認電(dian)(dian)(dian)磁(ci)閥(fa)(fa)的(de)輸出(chu)方(fang)向和(he)安(an)(an)裝導管。同(tong)時，在安(an)(an)裝和(he)維護過程(cheng)中，還應(ying)注(zhu)意(yi)避(bi)免損壞(huai)電(dian)(dian)(dian)器元件(jian)、清洗污物和(he)雜(za)質(zhi)、定(ding)期檢查(cha)密封性(xing)能以及保養和(he)維修電(dian)(dian)(dian)磁(ci)閥(fa)(fa)。只(zhi)有確保電(dian)(dian)(dian)磁(ci)閥(fa)(fa)的(de)正(zheng)(zheng)確接線和(he)日(ri)常(chang)維護，才(cai)能提高設備的(de)穩定(ding)性(xing)和(he)使用壽命。