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):直動(dong)式(shi)電(dian)(dian)(dian)磁閥有(you)常閉(bi)型(xing)(xing)和常開(kai)型(xing)(xing)二種.常閉(bi)型(xing)(xing)斷電(dian)(dian)(dian)時呈(cheng)關(guan)閉(bi)狀態,當(dang)(dang)線圈通電(dian)(dian)(dian)時 產生(sheng)電(dian)(dian)(dian)磁力(li),使動(dong)鐵(tie)芯(xin)克服彈(dan)(dan)簧力(li)同靜鐵(tie)芯(xin)吸合直接(jie)開(kai)啟閥,介(jie)質 呈(cheng)通路(lu); 當(dang)(dang)線圈斷電(dian)(dian)(dian)時電(dian)(dian)(dian)磁力(li)消失(shi), 動(dong)鐵(tie)芯(xin)在彈(dan)(dan)簧力(li)的(de)作用下復(fu)位, 直接(jie)關(guan)閉(bi)SMC電(dian)(dian)(dian)磁閥有(you)什么作用之處，閥口,介(jie)質不通.結(jie)構簡單,動(dong)作可靠,在零壓差(cha)和微真 空(kong)下正常工作. 常開(kai)型(xing)(xing)正好相反. 如小于(yu) φ6 流量通徑的(de)電(dian)(dian)(dian)磁閥. （圖 一(yi)是典型(xing)(xing)結(jie)構圖）

二,分步(bu)(bu)直(zhi)動式電(dian)磁閥(fa)(fa)該閥(fa)(fa)采用(yong)一(yi)次開閥(fa)(fa)和(he)(he)二次開閥(fa)(fa)連(lian)在一(yi)體(ti),主閥(fa)(fa)和(he)(he)導閥(fa)(fa)分步(bu)(bu)使電(dian)磁力(li) 和(he)(he)壓(ya)(ya)差(cha)直(zhi)接(jie)開啟主閥(fa)(fa)口. 當線圈(quan)通電(dian)時(shi)(shi)(shi), 產生(sheng)電(dian)磁力(li)使動鐵(tie)芯(xin) 和(he)(he) 靜鐵(tie)芯(xin)吸合,導閥(fa)(fa)口開啟而導閥(fa)(fa)口設在主閥(fa)(fa)口上(shang)(shang)(shang),且動鐵(tie)芯(xin)與主閥(fa)(fa) 芯(xin)連(lian)在一(yi)起,此(ci)(ci)時(shi)(shi)(shi)主閥(fa)(fa)上(shang)(shang)(shang)腔的(de)(de)壓(ya)(ya)力(li)通過導閥(fa)(fa)口卸荷,在壓(ya)(ya)力(li)差(cha)和(he)(he)電(dian) 磁力(li)的(de)(de)同時(shi)(shi)(shi)作(zuo)(zuo)用(yong)下使主閥(fa)(fa)芯(xin)向上(shang)(shang)(shang)運動,開啟主閥(fa)(fa)介質流通.當線圈(quan) 斷電(dian)時(shi)(shi)(shi)電(dian)磁力(li)消(xiao)失,此(ci)(ci)時(shi)(shi)(shi)動鐵(tie)芯(xin)在自重(zhong)和(he)(he)彈(dan)簧力(li)的(de)(de)作(zuo)(zuo)用(yong)下關(guan)閉(bi)導閥(fa)(fa) 孔(kong),此(ci)(ci)時(shi)(shi)(shi)介質在平(ping)衡孔(kong)中進入主閥(fa)(fa)芯(xin)上(shang)(shang)(shang)腔,使上(shang)(shang)(shang)腔壓(ya)(ya)力(li)升高,此(ci)(ci)時(shi)(shi)(shi) 在彈(dan)簧復(fu)位和(he)(he)壓(ya)(ya)力(li)的(de)(de)作(zuo)(zuo)用(yong)下關(guan)閉(bi)主閥(fa)(fa),介質斷流.結構合理,動作(zuo)(zuo) 可(ke)靠,在零壓(ya)(ya)差(cha)時(shi)(shi)(shi)工作(zuo)(zuo)也可(ke)靠.如:ZQDF,ZS,2W 等.

三(san),間接先(xian)(xian)導(dao)式(shi)電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa) 該系列電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)由先(xian)(xian)導(dao)閥(fa)(fa)(fa)(fa)(fa)和(he)主(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)芯(xin)聯系著形成通(tong)道組合(he)而(er)成;常(chang)閉(bi)(bi)型(xing)(xing) 在(zai)(zai)(zai)未通(tong)電(dian)(dian)時(shi)(shi)(shi),呈關(guan)(guan)(guan)閉(bi)(bi)狀態.當線圈通(tong)電(dian)(dian)時(shi)(shi)(shi),產(chan)生的(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力(li)使動(dong)鐵芯(xin)和(he) 靜鐵芯(xin)吸合(he),導(dao)閥(fa)(fa)(fa)(fa)(fa)口(kou)(kou)(kou)打開(kai),介(jie)(jie)質(zhi)流(liu)(liu)向(xiang)(xiang)出(chu)口(kou)(kou)(kou),此時(shi)(shi)(shi)主(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)芯(xin)上(shang)腔(qiang)壓(ya)(ya)(ya)(ya)力(li)減 少,低于(yu)(yu)(yu)進口(kou)(kou)(kou)側(ce)的(de)(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)力(li),形成壓(ya)(ya)(ya)(ya)差(cha)克服彈簧(huang)阻力(li)而(er)隨之向(xiang)(xiang)上(shang)運動(dong), 達到開(kai)啟主(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)口(kou)(kou)(kou)的(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de),介(jie)(jie)質(zhi)流(liu)(liu)通(tong).當線圈斷電(dian)(dian)時(shi)(shi)(shi),磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力(li)消失,動(dong) 鐵芯(xin)在(zai)(zai)(zai)彈簧(huang)力(li)作用(yong)(yong)(yong)下復位關(guan)(guan)(guan)閉(bi)(bi)先(xian)(xian)導(dao)口(kou)(kou)(kou),此時(shi)(shi)(shi)介(jie)(jie)質(zhi)從平衡孔流(liu)(liu)入,主(zhu)(zhu) 閥(fa)(fa)(fa)(fa)(fa)芯(xin)上(shang)腔(qiang)壓(ya)(ya)(ya)(ya)力(li)增大(da)(da)(da),并在(zai)(zai)(zai)彈簧(huang)力(li)的(de)(de)(de)(de)(de)作用(yong)(yong)(yong)下向(xiang)(xiang)下運動(dong),關(guan)(guan)(guan)閉(bi)(bi)主(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)口(kou)(kou)(kou). 常(chang)開(kai)式(shi)原理正好相(xiang)反(fan).如:SLA,DF（φ15 以(yi)(yi)上(shang)口(kou)(kou)(kou)徑(jing)(jing)）,ZCZ 等. （圖三(san)是典型(xing)(xing)結(jie)構圖） 電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)選(xuan)(xuan)(xuan)型(xing)(xing) 一(yi)(yi):適用(yong)(yong)(yong)性(xing)管(guan)路中的(de)(de)(de)(de)(de)流(liu)(liu)體(ti)必須(xu)和(he)選(xuan)(xuan)(xuan)用(yong)(yong)(yong)的(de)(de)(de)(de)(de)電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)系列型(xing)(xing)號(hao)中標(biao)定的(de)(de)(de)(de)(de)介(jie)(jie)質(zhi)一(yi)(yi)致. 流(liu)(liu)體(ti)的(de)(de)(de)(de)(de)溫(wen)度(du)(du)(du)必須(xu)小(xiao)于(yu)(yu)(yu)選(xuan)(xuan)(xuan)用(yong)(yong)(yong)電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)標(biao)定溫(wen)度(du)(du)(du). 電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)允許(xu)液(ye)體(ti)粘度(du)(du)(du)一(yi)(yi)般(ban)在(zai)(zai)(zai) 20CST 以(yi)(yi)下,大(da)(da)(da)于(yu)(yu)(yu) 20CST 應(ying)(ying)(ying)(ying)注(zhu)(zhu)明(ming). 工(gong)作壓(ya)(ya)(ya)(ya)差(cha),管(guan)路最(zui)高壓(ya)(ya)(ya)(ya)差(cha)在(zai)(zai)(zai)小(xiao)于(yu)(yu)(yu) 0.04MPa 時(shi)(shi)(shi)應(ying)(ying)(ying)(ying)選(xuan)(xuan)(xuan)用(yong)(yong)(yong)如 ZS,2W,ZQDF,ZCM 系列等直(zhi)(zhi)動(dong)式(shi)和(he)分(fen)步直(zhi)(zhi)動(dong)式(shi); 最(zui)低工(gong)作壓(ya)(ya)(ya)(ya)差(cha)大(da)(da)(da)于(yu)(yu)(yu) 0.04MPa 時(shi)(shi)(shi) 可(ke)選(xuan)(xuan)(xuan)用(yong)(yong)(yong)先(xian)(xian)導(dao)式(shi)（壓(ya)(ya)(ya)(ya)差(cha)式(shi)）電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa);最(zui)高工(gong)作壓(ya)(ya)(ya)(ya)差(cha)應(ying)(ying)(ying)(ying) 小(xiao)于(yu)(yu)(yu)電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)最(zui)大(da)(da)(da)標(biao)定壓(ya)(ya)(ya)(ya)力(li);一(yi)(yi)般(ban)電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)都(dou)是單向(xiang)(xiang)工(gong)作,因(yin)(yin)此要(yao)(yao)注(zhu)(zhu) 意(yi)是否有(you)反(fan)壓(ya)(ya)(ya)(ya)差(cha),如有(you)安裝止(zhi)回(hui)閥(fa)(fa)(fa)(fa)(fa). 流(liu)(liu)體(ti)清潔度(du)(du)(du)不高時(shi)(shi)(shi)應(ying)(ying)(ying)(ying)在(zai)(zai)(zai)電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)前安裝過濾器,一(yi)(yi)般(ban)電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci) 閥(fa)(fa)(fa)(fa)(fa)對(dui)介(jie)(jie)質(zhi)要(yao)(yao)求(qiu)清潔度(du)(du)(du)要(yao)(yao)好. 注(zhu)(zhu)意(yi)流(liu)(liu)量孔徑(jing)(jing)和(he)接管(guan)口(kou)(kou)(kou)徑(jing)(jing);電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)一(yi)(yi)般(ban)只有(you)開(kai)關(guan)(guan)(guan)兩位控(kong)制;條件允 許(xu)請(qing)安裝旁路管(guan),便于(yu)(yu)(yu)維修;有(you)水(shui)錘現象時(shi)(shi)(shi)要(yao)(yao)定制電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)開(kai)閉(bi)(bi)時(shi)(shi)(shi) 間調(diao)節(jie). 注(zhu)(zhu)意(yi)環(huan)境溫(wen)度(du)(du)(du)對(dui)電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)影(ying)響 電(dian)(dian)源電(dian)(dian)流(liu)(liu)和(he)消耗功率應(ying)(ying)(ying)(ying)根據輸出(chu)容量選(xuan)(xuan)(xuan)取(qu),電(dian)(dian)源電(dian)(dian)壓(ya)(ya)(ya)(ya)一(yi)(yi)般(ban)允許(xu) ±10%左右,必須(xu)注(zhu)(zhu)意(yi)交(jiao)流(liu)(liu)起動(dong)時(shi)(shi)(shi) VA 值較高. 二,可(ke)靠性(xing) 電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)分(fen)為常(chang)閉(bi)(bi)和(he)常(chang)開(kai)二種;一(yi)(yi)般(ban)選(xuan)(xuan)(xuan)用(yong)(yong)(yong)常(chang)閉(bi)(bi)型(xing)(xing),通(tong)電(dian)(dian)打開(kai),斷電(dian)(dian)關(guan)(guan)(guan) 閉(bi)(bi);但在(zai)(zai)(zai)開(kai)啟時(shi)(shi)(shi)間很長關(guan)(guan)(guan)閉(bi)(bi)時(shi)(shi)(shi)很短時(shi)(shi)(shi)要(yao)(yao)選(xuan)(xuan)(xuan)用(yong)(yong)(yong)常(chang)開(kai)型(xing)(xing)了. 壽命試驗,工(gong)廠一(yi)(yi)般(ban)屬于(yu)(yu)(yu)型(xing)(xing)式(shi)試驗項目,確切地說我(wo)國(guo)還沒(mei)有(you)電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci) 閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)專業標(biao)準,因(yin)(yin)此選(xuan)(xuan)(xuan)用(yong)(yong)(yong)電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)廠家時(shi)(shi)(shi)慎重(zhong). 動(dong)作時(shi)(shi)(shi)間很短頻(pin)率較高時(shi)(shi)(shi)一(yi)(yi)般(ban)選(xuan)(xuan)(xuan)取(qu)直(zhi)(zhi)動(dong)式(shi),大(da)(da)(da)口(kou)(kou)(kou)徑(jing)(jing)選(xuan)(xuan)(xuan)用(yong)(yong)(yong)快(kuai)速系列. 三(san),安全性(xing) 一(yi)(yi)般(ban)電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)不防(fang)水(shui), 在(zai)(zai)(zai)條件不允許(xu)時(shi)(shi)(shi)請(qing)選(xuan)(xuan)(xuan)用(yong)(yong)(yong)防(fang)水(shui)型(xing)(xing), 工(gong)廠可(ke)以(yi)(yi)定做. 電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)最(zui)高標(biao)定公稱壓(ya)(ya)(ya)(ya)力(li)一(yi)(yi)定要(yao)(yao)超過管(guan)路內的(de)(de)(de)(de)(de)最(zui)高壓(ya)(ya)(ya)(ya)力(li),否則使 用(yong)(yong)(yong)壽命會縮短或產(chan)生其(qi)它意(yi)外情況(kuang). 有(you)腐(fu)(fu)蝕(shi)性(xing)液(ye)體(ti)的(de)(de)(de)(de)(de)應(ying)(ying)(ying)(ying)選(xuan)(xuan)(xuan)用(yong)(yong)(yong)全不銹(xiu)鋼型(xing)(xing),強腐(fu)(fu)蝕(shi)性(xing)流(liu)(liu)體(ti)宜選(xuan)(xuan)(xuan)用(yong)(yong)(yong)塑料王 （SLF）電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa). 爆炸性(xing)環(huan)境必須(xu)選(xuan)(xuan)(xuan)用(yong)(yong)(yong)相(xiang)應(ying)(ying)(ying)(ying)的(de)(de)(de)(de)(de)防(fang)爆產(chan)品(pin). 四,經濟(ji)性(xing) 有(you)很多電(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)可(ke)以(yi)(yi)通(tong)用(yong)(yong)(yong),但在(zai)(zai)(zai)能滿足(zu)以(yi)(yi)上(shang)三(san)點的(de)(de)(de)(de)(de)基礎上(shang)應(ying)(ying)(ying)(ying)選(xuan)(xuan)(xuan)用(yong)(yong)(yong)最(zui)經 濟(ji)的(de)(de)(de)(de)(de)產(chan)品(pin)

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