很多人對于SMC電磁閥的結構原理是不清楚，但是很想要知道這些很不錯的機械原理，同時想要深入研究！

一(yi):直(zhi)動式電(dian)(dian)磁(ci)閥有(you)常(chang)閉(bi)(bi)型(xing)和常(chang)開型(xing)二(er)種.常(chang)閉(bi)(bi)型(xing)斷(duan)電(dian)(dian)時呈(cheng)關(guan)閉(bi)(bi)狀態,當線圈通電(dian)(dian)時 產生電(dian)(dian)磁(ci)力(li)(li),使動鐵芯克(ke)服彈簧(huang)力(li)(li)同(tong)靜鐵芯吸(xi)合直(zhi)接(jie)開啟閥,介質 呈(cheng)通路; 當線圈斷(duan)電(dian)(dian)時電(dian)(dian)磁(ci)力(li)(li)消失(shi), 動鐵芯在彈簧(huang)力(li)(li)的作用下復位, 直(zhi)接(jie)關(guan)閉(bi)(bi)SMC電(dian)(dian)磁(ci)閥有(you)什(shen)么作用之處，閥口,介質不通.結構簡單(dan),動作可靠,在零壓差和微真 空下正常(chang)工作. 常(chang)開型(xing)正好(hao)相(xiang)反. 如小(xiao)于 φ6 流量(liang)通徑的電(dian)(dian)磁(ci)閥. （圖 一(yi)是典型(xing)結構圖）

二,分步(bu)直動(dong)(dong)式電(dian)(dian)磁(ci)閥(fa)該閥(fa)采用(yong)一次開(kai)閥(fa)和二次開(kai)閥(fa)連在(zai)一體(ti),主(zhu)閥(fa)和導(dao)(dao)閥(fa)分步(bu)使(shi)(shi)電(dian)(dian)磁(ci)力(li)(li) 和壓(ya)(ya)(ya)差直接(jie)開(kai)啟(qi)(qi)主(zhu)閥(fa)口. 當線圈(quan)通電(dian)(dian)時(shi)(shi), 產生電(dian)(dian)磁(ci)力(li)(li)使(shi)(shi)動(dong)(dong)鐵芯(xin) 和 靜(jing)鐵芯(xin)吸(xi)合(he),導(dao)(dao)閥(fa)口開(kai)啟(qi)(qi)而(er)導(dao)(dao)閥(fa)口設在(zai)主(zhu)閥(fa)口上(shang),且動(dong)(dong)鐵芯(xin)與主(zhu)閥(fa) 芯(xin)連在(zai)一起(qi),此(ci)時(shi)(shi)主(zhu)閥(fa)上(shang)腔的壓(ya)(ya)(ya)力(li)(li)通過導(dao)(dao)閥(fa)口卸荷,在(zai)壓(ya)(ya)(ya)力(li)(li)差和電(dian)(dian) 磁(ci)力(li)(li)的同(tong)時(shi)(shi)作(zuo)用(yong)下(xia)使(shi)(shi)主(zhu)閥(fa)芯(xin)向上(shang)運(yun)動(dong)(dong),開(kai)啟(qi)(qi)主(zhu)閥(fa)介質(zhi)流(liu)通.當線圈(quan) 斷電(dian)(dian)時(shi)(shi)電(dian)(dian)磁(ci)力(li)(li)消失,此(ci)時(shi)(shi)動(dong)(dong)鐵芯(xin)在(zai)自重(zhong)和彈簧力(li)(li)的作(zuo)用(yong)下(xia)關閉導(dao)(dao)閥(fa) 孔,此(ci)時(shi)(shi)介質(zhi)在(zai)平衡孔中(zhong)進入主(zhu)閥(fa)芯(xin)上(shang)腔,使(shi)(shi)上(shang)腔壓(ya)(ya)(ya)力(li)(li)升(sheng)高,此(ci)時(shi)(shi) 在(zai)彈簧復(fu)位和壓(ya)(ya)(ya)力(li)(li)的作(zuo)用(yong)下(xia)關閉主(zhu)閥(fa),介質(zhi)斷流(liu).結構(gou)合(he)理,動(dong)(dong)作(zuo) 可靠,在(zai)零壓(ya)(ya)(ya)差時(shi)(shi)工作(zuo)也可靠.如:ZQDF,ZS,2W 等.

三,間(jian)接(jie)先(xian)導(dao)式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa) 該系列(lie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)由先(xian)導(dao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)和(he)(he)主(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯聯系著形(xing)成通(tong)(tong)道組合而成;常(chang)閉(bi)型 在未通(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)(shi)(shi),呈關(guan)閉(bi)狀態.當(dang)線圈通(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)(shi)(shi),產(chan)生(sheng)的(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)力(li)(li)使動鐵(tie)(tie)芯和(he)(he) 靜(jing)鐵(tie)(tie)芯吸(xi)合,導(dao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou)(kou)(kou)打開(kai)(kai),介(jie)質(zhi)流(liu)(liu)(liu)(liu)向(xiang)(xiang)出(chu)口(kou)(kou)(kou),此(ci)(ci)時(shi)(shi)(shi)(shi)主(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯上腔(qiang)壓(ya)(ya)(ya)力(li)(li)減 少,低(di)于(yu)進口(kou)(kou)(kou)側的(de)(de)(de)(de)壓(ya)(ya)(ya)力(li)(li),形(xing)成壓(ya)(ya)(ya)差(cha)克服彈簧(huang)阻(zu)力(li)(li)而隨之(zhi)向(xiang)(xiang)上運動, 達到開(kai)(kai)啟主(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou)(kou)(kou)的(de)(de)(de)(de)目(mu)的(de)(de)(de)(de),介(jie)質(zhi)流(liu)(liu)(liu)(liu)通(tong)(tong).當(dang)線圈斷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)(shi)(shi),磁(ci)(ci)(ci)(ci)(ci)力(li)(li)消失,動 鐵(tie)(tie)芯在彈簧(huang)力(li)(li)作(zuo)用(yong)(yong)(yong)(yong)(yong)下(xia)復位關(guan)閉(bi)先(xian)導(dao)口(kou)(kou)(kou),此(ci)(ci)時(shi)(shi)(shi)(shi)介(jie)質(zhi)從平衡孔流(liu)(liu)(liu)(liu)入,主(zhu)(zhu) 閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯上腔(qiang)壓(ya)(ya)(ya)力(li)(li)增大(da),并在彈簧(huang)力(li)(li)的(de)(de)(de)(de)作(zuo)用(yong)(yong)(yong)(yong)(yong)下(xia)向(xiang)(xiang)下(xia)運動,關(guan)閉(bi)主(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou)(kou)(kou). 常(chang)開(kai)(kai)式(shi)原理正好相反.如:SLA,DF（φ15 以(yi)(yi)上口(kou)(kou)(kou)徑(jing)）,ZCZ 等. （圖(tu)三是典型結構圖(tu)） 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)選(xuan)(xuan)(xuan)(xuan)型 一(yi)(yi):適用(yong)(yong)(yong)(yong)(yong)性(xing)管(guan)路(lu)(lu)中(zhong)的(de)(de)(de)(de)流(liu)(liu)(liu)(liu)體(ti)(ti)必(bi)須(xu)(xu)和(he)(he)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)系列(lie)型號(hao)中(zhong)標定的(de)(de)(de)(de)介(jie)質(zhi)一(yi)(yi)致(zhi). 流(liu)(liu)(liu)(liu)體(ti)(ti)的(de)(de)(de)(de)溫(wen)度必(bi)須(xu)(xu)小(xiao)(xiao)于(yu)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)標定溫(wen)度. 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)允許(xu)液體(ti)(ti)粘度一(yi)(yi)般(ban)(ban)(ban)(ban)(ban)在 20CST 以(yi)(yi)下(xia),大(da)于(yu) 20CST 應(ying)(ying)注(zhu)(zhu)明. 工(gong)(gong)(gong)作(zuo)壓(ya)(ya)(ya)差(cha),管(guan)路(lu)(lu)最(zui)(zui)高壓(ya)(ya)(ya)差(cha)在小(xiao)(xiao)于(yu) 0.04MPa 時(shi)(shi)(shi)(shi)應(ying)(ying)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)如 ZS,2W,ZQDF,ZCM 系列(lie)等直(zhi)動式(shi)和(he)(he)分步直(zhi)動式(shi); 最(zui)(zui)低(di)工(gong)(gong)(gong)作(zuo)壓(ya)(ya)(ya)差(cha)大(da)于(yu) 0.04MPa 時(shi)(shi)(shi)(shi) 可選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)先(xian)導(dao)式(shi)（壓(ya)(ya)(ya)差(cha)式(shi)）電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa);最(zui)(zui)高工(gong)(gong)(gong)作(zuo)壓(ya)(ya)(ya)差(cha)應(ying)(ying) 小(xiao)(xiao)于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)最(zui)(zui)大(da)標定壓(ya)(ya)(ya)力(li)(li);一(yi)(yi)般(ban)(ban)(ban)(ban)(ban)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)都是單向(xiang)(xiang)工(gong)(gong)(gong)作(zuo),因此(ci)(ci)要(yao)注(zhu)(zhu) 意(yi)是否(fou)有(you)(you)反壓(ya)(ya)(ya)差(cha),如有(you)(you)安(an)(an)(an)裝(zhuang)止(zhi)回閥(fa)(fa)(fa)(fa)(fa)(fa)(fa). 流(liu)(liu)(liu)(liu)體(ti)(ti)清潔(jie)度不高時(shi)(shi)(shi)(shi)應(ying)(ying)在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)前安(an)(an)(an)裝(zhuang)過(guo)濾器(qi),一(yi)(yi)般(ban)(ban)(ban)(ban)(ban)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci) 閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)對(dui)(dui)介(jie)質(zhi)要(yao)求清潔(jie)度要(yao)好. 注(zhu)(zhu)意(yi)流(liu)(liu)(liu)(liu)量孔徑(jing)和(he)(he)接(jie)管(guan)口(kou)(kou)(kou)徑(jing);電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)一(yi)(yi)般(ban)(ban)(ban)(ban)(ban)只(zhi)有(you)(you)開(kai)(kai)關(guan)兩位控制;條件允 許(xu)請安(an)(an)(an)裝(zhuang)旁路(lu)(lu)管(guan),便于(yu)維修;有(you)(you)水(shui)錘現象時(shi)(shi)(shi)(shi)要(yao)定制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)開(kai)(kai)閉(bi)時(shi)(shi)(shi)(shi) 間(jian)調節. 注(zhu)(zhu)意(yi)環境(jing)溫(wen)度對(dui)(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)影響 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)和(he)(he)消耗功率(lv)應(ying)(ying)根(gen)據輸出(chu)容(rong)量選(xuan)(xuan)(xuan)(xuan)取(qu),電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)一(yi)(yi)般(ban)(ban)(ban)(ban)(ban)允許(xu) ±10%左右,必(bi)須(xu)(xu)注(zhu)(zhu)意(yi)交流(liu)(liu)(liu)(liu)起動時(shi)(shi)(shi)(shi) VA 值較(jiao)高. 二(er)(er),可靠(kao)性(xing) 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)分為(wei)常(chang)閉(bi)和(he)(he)常(chang)開(kai)(kai)二(er)(er)種;一(yi)(yi)般(ban)(ban)(ban)(ban)(ban)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)常(chang)閉(bi)型,通(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)打開(kai)(kai),斷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)關(guan) 閉(bi);但(dan)在開(kai)(kai)啟時(shi)(shi)(shi)(shi)間(jian)很(hen)(hen)長關(guan)閉(bi)時(shi)(shi)(shi)(shi)很(hen)(hen)短時(shi)(shi)(shi)(shi)要(yao)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)常(chang)開(kai)(kai)型了. 壽命試(shi)驗,工(gong)(gong)(gong)廠(chang)一(yi)(yi)般(ban)(ban)(ban)(ban)(ban)屬于(yu)型式(shi)試(shi)驗項(xiang)目(mu),確(que)切(qie)地說我國(guo)還沒有(you)(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci) 閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)專業(ye)標準,因此(ci)(ci)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)廠(chang)家時(shi)(shi)(shi)(shi)慎重. 動作(zuo)時(shi)(shi)(shi)(shi)間(jian)很(hen)(hen)短頻率(lv)較(jiao)高時(shi)(shi)(shi)(shi)一(yi)(yi)般(ban)(ban)(ban)(ban)(ban)選(xuan)(xuan)(xuan)(xuan)取(qu)直(zhi)動式(shi),大(da)口(kou)(kou)(kou)徑(jing)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)快速系列(lie). 三,安(an)(an)(an)全性(xing) 一(yi)(yi)般(ban)(ban)(ban)(ban)(ban)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)不防(fang)(fang)水(shui), 在條件不允許(xu)時(shi)(shi)(shi)(shi)請選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)防(fang)(fang)水(shui)型, 工(gong)(gong)(gong)廠(chang)可以(yi)(yi)定做. 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)最(zui)(zui)高標定公(gong)稱(cheng)壓(ya)(ya)(ya)力(li)(li)一(yi)(yi)定要(yao)超過(guo)管(guan)路(lu)(lu)內的(de)(de)(de)(de)最(zui)(zui)高壓(ya)(ya)(ya)力(li)(li),否(fou)則使 用(yong)(yong)(yong)(yong)(yong)壽命會縮短或產(chan)生(sheng)其它(ta)意(yi)外情況. 有(you)(you)腐蝕性(xing)液體(ti)(ti)的(de)(de)(de)(de)應(ying)(ying)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)全不銹鋼(gang)型,強腐蝕性(xing)流(liu)(liu)(liu)(liu)體(ti)(ti)宜選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)塑料王 （SLF）電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa). 爆炸性(xing)環境(jing)必(bi)須(xu)(xu)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)相應(ying)(ying)的(de)(de)(de)(de)防(fang)(fang)爆產(chan)品. 四,經濟性(xing) 有(you)(you)很(hen)(hen)多電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)可以(yi)(yi)通(tong)(tong)用(yong)(yong)(yong)(yong)(yong),但(dan)在能滿(man)足以(yi)(yi)上三點(dian)的(de)(de)(de)(de)基礎上應(ying)(ying)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)最(zui)(zui)經 濟的(de)(de)(de)(de)產(chan)品

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