SMC電磁閥的結構型式,日本SMC電磁閥

SMC電磁閥的結構型式容易控制內泄漏，直至降為零。所以，電磁閥使用特別安全，尤其適用于腐蝕性、有毒或高低溫的介質。
SMC電磁閥系統簡單，便接電腦，價格低謙。電磁閥本身結構簡單，價格也低，比起調節閥等其它種類執行器易于安裝維護。更顯著的是所組成的自控系統簡單得多，價格要低得多。 4、由于電磁閥是開關信號控制，與工控計算機連接十分方便。在當今電腦普及，價格大幅下降的時代，電磁閥的優勢就更加明顯。SMC電磁閥動作快遞，功率微小，外形輕巧。 電磁閥響應時間可以短至幾個毫秒，即使是先導式電磁閥也可以控制在幾十毫秒內。由于自成回路，比之其它自控閥反應更靈敏。 5、設計得當的電磁閥線圈功率消耗很低，屬節能產品；還可做到只需觸發動作，自動保持閥位，平時一點也不耗電。電磁閥外形尺寸小，既節省空間，又輕巧美觀。電磁閥調節精度受限，適用介質受限。 6、電磁閥通常只有開關兩種狀態，閥芯只能處于兩個極限位置，不能連續調節，（力圖突破的新構思不少，但還都處于試驗試用階段）所以調節精度還受到一定限制。7、SMC電磁閥對介質潔凈度有較高要求，含顆粒狀的介質不能適用，如屬雜質須先濾去。另外，粘稠狀介質不能適用，而且，特定的產品適用的介質粘度范圍相對較窄。 8、SMC電磁閥型號多樣，用途廣泛。電磁閥雖有先天不足，優點仍十分突出，所以就設計成多種多樣的產品，滿足各種不同的需求，用途極為廣泛。電磁閥技術的進步也都是圍繞著如何克服先天不足，如何更好地發揮固有優勢而展開
SMC電磁閥是用電磁控制的 工業設備,用在工業控制系統中調整介質的方向,流量,速度和其 他的參數.電磁閥有很多種,不同的電磁閥在控制系統的不同位置 發揮作用,zui常用的是單向閥,安全閥,方向控制閥,速度調節閥 等.電磁閥是用電磁的效應進行控制,主要的控制方式由繼電器控 制.這樣,電磁閥可以配合不同的電路來實現預期的控制,而控制 的精度和靈活性都能夠保證. 圖中桿狀的物體就是通過電控制的閥桿,利用電磁力可以將閥桿打 開或者關閉. 下面以氣動系統為例子說明電磁閥在工業控制中的應用.所謂氣動 系統,就是以氣體為介質的控制系統.氣動系統中,這種能源的介 質通常就是空氣.在真正使用的時候,通常把大氣中的空氣的體積 加以壓縮,從而提高它的壓力.壓縮空氣主要通過作用于活塞或葉 片來作功. 氣動系統中,電磁閥的作用就是在控制系統中按照控制的要求來調 整壓縮空氣的各種狀態,氣動系統還需要其他元件的配合,其中包 括動力元件,執行元件,開關,顯示設備及其它輔助設備.動力元 件包括各種壓縮機,執行元件包括各種氣缸.這些都是氣動系統中
*的部分.而閥體是控制算法得以實現的重要設備. 比如單向閥讓壓縮空氣從壓縮機進入氣罐,當壓縮機關閉時,阻止 壓縮空氣反方向流動;安全閥當儲氣罐內的壓力超過允許限度,可 將壓縮空氣排出;方向控制閥通過對氣缸兩個接口交替地加壓和排 氣,來控制運動的方向;速度調節閥能簡便實現執行元件的無級調 速. 氣路系統: 油路系統: 冷凍系統: A 進氣過濾器 J 油箱 P B 冷凍壓縮機 空氣進氣閥 K 恒溫旁通閥 Q 冷凝器 C 壓縮機主機 L 油冷卻器 R 熱交換器 D 單向閥 M 油過濾器 S 旁通系統 E F 空氣/油分離器 N 回油閥 T 空氣出口過濾器 zui小壓力閥 O 斷油閥 G 后冷卻器 H 帶自動疏水器的水分離器 氣動系統的示意圖 電磁閥不但能夠應用在氣動系統中,在油壓的系統,水壓的系統中 也能夠得到相同或者類似的應用,比如低功率不供油小型電磁換向 閥,密封件不需供油,排出的氣體不會污染環境,可用于食品,醫 藥,電子等行業. 電磁換向閥 現在,電磁閥技術與控制技術,計算機技術,電子技術相結合,已 經能夠進行多種復雜的控制.比如可以把電磁閥應用在智能控制領 域,應用在無線控制技術等方面.電磁閥正是因為能夠用電磁進行 控制,所以它能與現在的各種電子系統很好地接口,這也是它得到 廣泛應用的一個主要原因. 電磁閥已經廣泛地應用在生產的各個領域中,隨著電磁控制技術和 制造工藝的提高,電磁閥能夠實現更加精巧的控制,為實現不同的 氣動系統,液壓系統發揮它的作用. 電磁閥的工作原理: 電磁閥的工作原理: 電磁閥里有密閉的腔,在的不同位置開有通孔,每個孔都通向不同 的油管,腔中間是閥,兩面是兩塊電磁鐵,哪面的磁鐵線圈通電閥 體就會被吸引到哪邊,通過控制閥體的移動來檔住或漏出不同的排 油的孔,而進油孔是常開的,液壓油就會進入不同的排油管,然后 通過油的壓力來推動油剛的活塞,活塞又帶動活塞桿,活塞竿帶動 機械裝置動.這樣通過控制電磁鐵的電流就控制了機械運動.
一(yi):直(zhi)動(dong)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa) 有(you)常(chang)(chang)閉(bi)(bi)(bi)型(xing)和(he)(he)常(chang)(chang)開(kai)(kai)(kai)(kai)(kai)型(xing)二(er)種.常(chang)(chang)閉(bi)(bi)(bi)型(xing)斷(duan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)(shi)(shi)呈(cheng)(cheng)關(guan)(guan)(guan)閉(bi)(bi)(bi)狀(zhuang)態,當線圈(quan)通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)(shi)(shi) 產(chan)生電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)力(li)(li),使(shi)(shi)(shi)(shi)動(dong)鐵(tie)芯(xin)(xin)(xin)(xin)(xin)克服彈(dan)(dan)簧(huang)(huang)(huang)力(li)(li)同靜鐵(tie)芯(xin)(xin)(xin)(xin)(xin)吸(xi)合(he)(he)直(zhi)接開(kai)(kai)(kai)(kai)(kai)啟(qi)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa),介(jie)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi) 呈(cheng)(cheng)通(tong)路(lu); 當線圈(quan)斷(duan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)力(li)(li)消失, 動(dong)鐵(tie)芯(xin)(xin)(xin)(xin)(xin)在(zai)(zai)(zai)彈(dan)(dan)簧(huang)(huang)(huang)力(li)(li)的(de)(de)(de)(de)作(zuo)用(yong)(yong)(yong)(yong)下復位(wei), 直(zhi)接關(guan)(guan)(guan)閉(bi)(bi)(bi)SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)有(you)什么作(zuo)用(yong)(yong)(yong)(yong)之處，閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou),介(jie)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)不通(tong).結構簡單,動(dong)作(zuo)可(ke)(ke)靠(kao),在(zai)(zai)(zai)零壓(ya)(ya)(ya)(ya)差(cha)和(he)(he)微真 空下正(zheng)常(chang)(chang)工(gong)作(zuo). 常(chang)(chang)開(kai)(kai)(kai)(kai)(kai)型(xing)正(zheng)好(hao)相(xiang)反. 如(ru)小(xiao)于(yu) φ6 流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)通(tong)徑(jing)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa). （圖 一(yi)是(shi)典型(xing)結構圖） 二(er),分(fen)步(bu)直(zhi)動(dong)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa) 該閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)采用(yong)(yong)(yong)(yong)一(yi)次開(kai)(kai)(kai)(kai)(kai)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)和(he)(he)二(er)次開(kai)(kai)(kai)(kai)(kai)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)連在(zai)(zai)(zai)一(yi)體(ti)(ti),主(zhu)(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)和(he)(he)導(dao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)分(fen)步(bu)使(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)力(li)(li) 和(he)(he)壓(ya)(ya)(ya)(ya)差(cha)直(zhi)接開(kai)(kai)(kai)(kai)(kai)啟(qi)主(zhu)(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou). 當線圈(quan)通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)(shi)(shi), 產(chan)生電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)力(li)(li)使(shi)(shi)(shi)(shi)動(dong)鐵(tie)芯(xin)(xin)(xin)(xin)(xin) 和(he)(he) 靜鐵(tie)芯(xin)(xin)(xin)(xin)(xin)吸(xi)合(he)(he),導(dao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou)開(kai)(kai)(kai)(kai)(kai)啟(qi)而(er)(er)導(dao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou)設在(zai)(zai)(zai)主(zhu)(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou)上(shang)(shang),且動(dong)鐵(tie)芯(xin)(xin)(xin)(xin)(xin)與主(zhu)(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa) 芯(xin)(xin)(xin)(xin)(xin)連在(zai)(zai)(zai)一(yi)起,此(ci)(ci)時(shi)(shi)(shi)(shi)主(zhu)(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)上(shang)(shang)腔(qiang)的(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)力(li)(li)通(tong)過導(dao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou)卸荷(he),在(zai)(zai)(zai)壓(ya)(ya)(ya)(ya)力(li)(li)差(cha)和(he)(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian) 磁(ci)(ci)(ci)(ci)(ci)力(li)(li)的(de)(de)(de)(de)同時(shi)(shi)(shi)(shi)作(zuo)用(yong)(yong)(yong)(yong)下使(shi)(shi)(shi)(shi)主(zhu)(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯(xin)(xin)(xin)(xin)(xin)向上(shang)(shang)運動(dong),開(kai)(kai)(kai)(kai)(kai)啟(qi)主(zhu)(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)介(jie)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)通(tong).當線圈(quan) 斷(duan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)力(li)(li)消失,此(ci)(ci)時(shi)(shi)(shi)(shi)動(dong)鐵(tie)芯(xin)(xin)(xin)(xin)(xin)在(zai)(zai)(zai)自重和(he)(he)彈(dan)(dan)簧(huang)(huang)(huang)力(li)(li)的(de)(de)(de)(de)作(zuo)用(yong)(yong)(yong)(yong)下關(guan)(guan)(guan)閉(bi)(bi)(bi)導(dao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa) 孔(kong),此(ci)(ci)時(shi)(shi)(shi)(shi)介(jie)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)在(zai)(zai)(zai)平衡(heng)孔(kong)中進(jin)入(ru)主(zhu)(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯(xin)(xin)(xin)(xin)(xin)上(shang)(shang)腔(qiang),使(shi)(shi)(shi)(shi)上(shang)(shang)腔(qiang)壓(ya)(ya)(ya)(ya)力(li)(li)升高(gao),此(ci)(ci)時(shi)(shi)(shi)(shi) 在(zai)(zai)(zai)彈(dan)(dan)簧(huang)(huang)(huang)復位(wei)和(he)(he)壓(ya)(ya)(ya)(ya)力(li)(li)的(de)(de)(de)(de)作(zuo)用(yong)(yong)(yong)(yong)下關(guan)(guan)(guan)閉(bi)(bi)(bi)主(zhu)(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa),介(jie)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)斷(duan)流(liu)(liu)(liu)(liu).結構合(he)(he)理(li),動(dong)作(zuo) 可(ke)(ke)靠(kao),在(zai)(zai)(zai)零壓(ya)(ya)(ya)(ya)差(cha)時(shi)(shi)(shi)(shi)工(gong)作(zuo)也(ye)可(ke)(ke)靠(kao).如(ru):ZQDF,ZS,2W 等(deng)(deng).（圖二(er)是(shi) 典型(xing)結構圖） 三(san),間(jian)(jian)接先(xian)(xian)導(dao)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa) 該系列(lie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)由先(xian)(xian)導(dao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)和(he)(he)主(zhu)(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯(xin)(xin)(xin)(xin)(xin)著形成通(tong)道組合(he)(he)而(er)(er)成;常(chang)(chang)閉(bi)(bi)(bi)型(xing) 在(zai)(zai)(zai)未通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)(shi)(shi),呈(cheng)(cheng)關(guan)(guan)(guan)閉(bi)(bi)(bi)狀(zhuang)態.當線圈(quan)通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)(shi)(shi),產(chan)生的(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)力(li)(li)使(shi)(shi)(shi)(shi)動(dong)鐵(tie)芯(xin)(xin)(xin)(xin)(xin)和(he)(he) 靜鐵(tie)芯(xin)(xin)(xin)(xin)(xin)吸(xi)合(he)(he),導(dao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou)打開(kai)(kai)(kai)(kai)(kai),介(jie)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)向出(chu)口(kou),此(ci)(ci)時(shi)(shi)(shi)(shi)主(zhu)(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯(xin)(xin)(xin)(xin)(xin)上(shang)(shang)腔(qiang)壓(ya)(ya)(ya)(ya)力(li)(li)減 少(shao),低(di)于(yu)進(jin)口(kou)側的(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)力(li)(li),形成壓(ya)(ya)(ya)(ya)差(cha)克服彈(dan)(dan)簧(huang)(huang)(huang)阻力(li)(li)而(er)(er)隨之向上(shang)(shang)運動(dong), 達到開(kai)(kai)(kai)(kai)(kai)啟(qi)主(zhu)(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou)的(de)(de)(de)(de)目(mu)的(de)(de)(de)(de),介(jie)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)通(tong).當線圈(quan)斷(duan)電(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(dong) 鐵(tie)芯(xin)(xin)(xin)(xin)(xin)在(zai)(zai)(zai)彈(dan)(dan)簧(huang)(huang)(huang)力(li)(li)作(zuo)用(yong)(yong)(yong)(yong)下復位(wei)關(guan)(guan)(guan)閉(bi)(bi)(bi)先(xian)(xian)導(dao)口(kou),此(ci)(ci)時(shi)(shi)(shi)(shi)介(jie)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)從平衡(heng)孔(kong)流(liu)(liu)(liu)(liu)入(ru),主(zhu)(zhu)(zhu) 閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯(xin)(xin)(xin)(xin)(xin)上(shang)(shang)腔(qiang)壓(ya)(ya)(ya)(ya)力(li)(li)增大(da),并在(zai)(zai)(zai)彈(dan)(dan)簧(huang)(huang)(huang)力(li)(li)的(de)(de)(de)(de)作(zuo)用(yong)(yong)(yong)(yong)下向下運動(dong),關(guan)(guan)(guan)閉(bi)(bi)(bi)主(zhu)(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou). 常(chang)(chang)開(kai)(kai)(kai)(kai)(kai)式(shi)(shi)(shi)原理(li)正(zheng)好(hao)相(xiang)反.如(ru):SLA,DF（φ15 以(yi)上(shang)(shang)口(kou)徑(jing)）,ZCZ 等(deng)(deng). （圖三(san)是(shi)典型(xing)結構圖） 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)選(xuan)(xuan)(xuan)(xuan)型(xing) 一(yi):適用(yong)(yong)(yong)(yong)性(xing)(xing) 管(guan)(guan)路(lu)中的(de)(de)(de)(de)流(liu)(liu)(liu)(liu)體(ti)(ti)必(bi)(bi)須和(he)(he)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)系列(lie)型(xing)號中標定(ding)(ding)的(de)(de)(de)(de)介(jie)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)一(yi)致. 流(liu)(liu)(liu)(liu)體(ti)(ti)的(de)(de)(de)(de)溫度(du)(du)必(bi)(bi)須小(xiao)于(yu)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)標定(ding)(ding)溫度(du)(du). 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)允許(xu)液體(ti)(ti)粘度(du)(du)一(yi)般(ban)在(zai)(zai)(zai) 20CST 以(yi)下,大(da)于(yu) 20CST 應(ying)(ying)注明. 工(gong)作(zuo)壓(ya)(ya)(ya)(ya)差(cha),管(guan)(guan)路(lu)zui高(gao)壓(ya)(ya)(ya)(ya)差(cha)在(zai)(zai)(zai)小(xiao)于(yu) 0.04MPa 時(shi)(shi)(shi)(shi)應(ying)(ying)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)如(ru) ZS,2W,ZQDF,ZCM 系列(lie)等(deng)(deng)直(zhi)動(dong)式(shi)(shi)(shi)和(he)(he)分(fen)步(bu)直(zhi)動(dong)式(shi)(shi)(shi); zui低(di)工(gong)作(zuo)壓(ya)(ya)(ya)(ya)差(cha)大(da)于(yu) 0.04MPa 時(shi)(shi)(shi)(shi) 可(ke)(ke)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)先(xian)(xian)導(dao)式(shi)(shi)(shi)（壓(ya)(ya)(ya)(ya)差(cha)式(shi)(shi)(shi)）電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa);zui高(gao)工(gong)作(zuo)壓(ya)(ya)(ya)(ya)差(cha)應(ying)(ying) 小(xiao)于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)zui大(da)標定(ding)(ding)壓(ya)(ya)(ya)(ya)力(li)(li);一(yi)般(ban)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)都是(shi)單向工(gong)作(zuo),因此(ci)(ci)要(yao)注 意(yi)是(shi)否(fou)有(you)反壓(ya)(ya)(ya)(ya)差(cha),如(ru)有(you)安(an)(an)(an)裝止(zhi)回閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa). 流(liu)(liu)(liu)(liu)體(ti)(ti)清(qing)潔度(du)(du)不高(gao)時(shi)(shi)(shi)(shi)應(ying)(ying)在(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)前安(an)(an)(an)裝過濾器,一(yi)般(ban)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci) 閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)對(dui)介(jie)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)要(yao)求清(qing)潔度(du)(du)要(yao)好(hao). 注意(yi)流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)孔(kong)徑(jing)和(he)(he)接管(guan)(guan)口(kou)徑(jing);電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)一(yi)般(ban)只有(you)開(kai)(kai)(kai)(kai)(kai)關(guan)(guan)(guan)兩位(wei)控(kong)制;條件允 許(xu)請安(an)(an)(an)裝旁路(lu)管(guan)(guan),便于(yu)維修;有(you)水(shui)(shui)錘現(xian)象時(shi)(shi)(shi)(shi)要(yao)定(ding)(ding)制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)開(kai)(kai)(kai)(kai)(kai)閉(bi)(bi)(bi)時(shi)(shi)(shi)(shi) 間(jian)(jian)調節. 注意(yi)環境溫度(du)(du)對(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)影響 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)和(he)(he)消耗功率應(ying)(ying)根據輸出(chu)容(rong)量(liang)(liang)(liang)選(xuan)(xuan)(xuan)(xuan)取,電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)一(yi)般(ban)允許(xu) ±10%左右,必(bi)(bi)須注意(yi)交流(liu)(liu)(liu)(liu)起動(dong)時(shi)(shi)(shi)(shi) VA 值較高(gao). 二(er),可(ke)(ke)靠(kao)性(xing)(xing) 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)分(fen)為常(chang)(chang)閉(bi)(bi)(bi)和(he)(he)常(chang)(chang)開(kai)(kai)(kai)(kai)(kai)二(er)種;一(yi)般(ban)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)常(chang)(chang)閉(bi)(bi)(bi)型(xing),通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)打開(kai)(kai)(kai)(kai)(kai),斷(duan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)關(guan)(guan)(guan) 閉(bi)(bi)(bi);但在(zai)(zai)(zai)開(kai)(kai)(kai)(kai)(kai)啟(qi)時(shi)(shi)(shi)(shi)間(jian)(jian)很長關(guan)(guan)(guan)閉(bi)(bi)(bi)時(shi)(shi)(shi)(shi)很短時(shi)(shi)(shi)(shi)要(yao)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)常(chang)(chang)開(kai)(kai)(kai)(kai)(kai)型(xing)了. 壽(shou)命試驗,工(gong)廠(chang)一(yi)般(ban)屬于(yu)型(xing)式(shi)(shi)(shi)試驗項目(mu),確(que)切地說我國還(huan)沒(mei)有(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci) 閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)專業標準,因此(ci)(ci)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)廠(chang)家時(shi)(shi)(shi)(shi)慎重. 動(dong)作(zuo)時(shi)(shi)(shi)(shi)間(jian)(jian)很短頻率較高(gao)時(shi)(shi)(shi)(shi)一(yi)般(ban)選(xuan)(xuan)(xuan)(xuan)取直(zhi)動(dong)式(shi)(shi)(shi),大(da)口(kou)徑(jing)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)快速系列(lie). 三(san),安(an)(an)(an)全(quan)性(xing)(xing) 一(yi)般(ban)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)不防水(shui)(shui), 在(zai)(zai)(zai)條件不允許(xu)時(shi)(shi)(shi)(shi)請選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)防水(shui)(shui)型(xing), 工(gong)廠(chang)可(ke)(ke)以(yi)定(ding)(ding)做. 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)zui高(gao)標定(ding)(ding)公稱壓(ya)(ya)(ya)(ya)力(li)(li)一(yi)定(ding)(ding)要(yao)超過管(guan)(guan)路(lu)內的(de)(de)(de)(de)zui高(gao)壓(ya)(ya)(ya)(ya)力(li)(li),否(fou)則使(shi)(shi)(shi)(shi) 用(yong)(yong)(yong)(yong)壽(shou)命會縮短或產(chan)生其它意(yi)外(wai)情(qing)況. 有(you)腐(fu)蝕(shi)性(xing)(xing)液體(ti)(ti)的(de)(de)(de)(de)應(ying)(ying)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)全(quan)不銹鋼型(xing),強腐(fu)蝕(shi)性(xing)(xing)流(liu)(liu)(liu)(liu)體(ti)(ti)宜(yi)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)塑料王 （SLF）電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa). 爆炸性(xing)(xing)環境必(bi)(bi)須選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)相(xiang)應(ying)(ying)的(de)(de)(de)(de)防爆產(chan)品. 四(si),經濟性(xing)(xing) 有(you)很多電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)可(ke)(ke)以(yi)通(tong)用(yong)(yong)(yong)(yong),但在(zai)(zai)(zai)能滿足以(yi)上(shang)(shang)三(san)點的(de)(de)(de)(de)基礎上(shang)(shang)應(ying)(ying)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)zui經 濟的(de)(de)(de)(de)產(chan)品

SMC電磁閥的結構型式,日本SMC電磁閥