REXROTH電磁閥組成構造,REXROTH電磁閥

REXROTH電磁閥所組成的自控系統簡單得多，價格要低得多。由于REXROTH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。REXROTH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。設計得當的REXROTH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。調節精度受限，適用介質受限REXROTH電磁閥所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，所以調節精度還受到一定限制。REXROTH電磁閥所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。型號多樣，用途廣泛
REXROTH電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)所(suo)雖有先天不(bu)足，優(you)點仍十分突出，所(suo)以(yi)就設計成多(duo)種(zhong)多(duo)樣的(de)(de)(de)(de)(de)(de)(de)(de)產(chan)品(pin)，滿足各種(zhong)不(bu)同的(de)(de)(de)(de)(de)(de)(de)(de)需(xu)(xu)(xu)求(qiu)，用(yong)(yong)途極為廣泛。電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)技術的(de)(de)(de)(de)(de)(de)(de)(de)進步也(ye)都(dou)(dou)是圍(wei)繞(rao)著如何克服先天不(bu)足，如何更好地發揮固有優(you)勢而(er)(er)展(zhan)開。以(yi)往的(de)(de)(de)(de)(de)(de)(de)(de)執行(xing)器大(da)(da)(da)量(liang)(liang)(liang)采用(yong)(yong)氣動(dong)(dong)和電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)的(de)(de)(de)(de)(de)(de)(de)(de)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回路(lu)，這(zhe)增加了(le)(le)系統(tong)(tong)的(de)(de)(de)(de)(de)(de)(de)(de)復雜性，而(er)(er)先導型電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)則在(zai)(zai)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)內(nei)(nei)(nei)形成利用(yong)(yong)工(gong)(gong)作介質(zhi)自(zi)(zi)(zi)身的(de)(de)(de)(de)(de)(de)(de)(de)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回路(lu)，結(jie)(jie)(jie)構(gou)(gou)甚為簡單(dan)。過(guo)去(qu)國(guo)(guo)(guo)內(nei)(nei)(nei)外電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)多(duo)項技術參(can)數還(huan)(huan)受(shou)限制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)，國(guo)(guo)(guo)內(nei)(nei)(nei)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)通徑已擴展(zhan)至30Omm；介質(zhi)溫度(du)(du)(du)低至200℃，高(gao)至450℃；工(gong)(gong)作壓力(li)從真空到(dao)25MPa。動(dong)(dong)作時間(jian)(jian)從十幾(ji)秒(miao)到(dao)幾(ji)毫(hao)秒(miao)。這(zhe)些技術的(de)(de)(de)(de)(de)(de)(de)(de)新發展(zhan)已*可以(yi)取(qu)代原(yuan)有體積龐大(da)(da)(da)價格昂貴(gui)的(de)(de)(de)(de)(de)(de)(de)(de)兩位(wei)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)快速切(qie)斷閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)和氣動(dong)(dong)開關(guan)(guan)(guan)(guan)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)，電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)開關(guan)(guan)(guan)(guan)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)，也(ye)能部(bu)(bu)分取(qu)代連續調節(jie)的(de)(de)(de)(de)(de)(de)(de)(de)氣動(dong)(dong)、電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)調節(jie)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)。國(guo)(guo)(guo)外的(de)(de)(de)(de)(de)(de)(de)(de)紡織、輕工(gong)(gong)、城建等(deng)(deng)行(xing)業已大(da)(da)(da)量(liang)(liang)(liang)改(gai)用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)，而(er)(er)冶金(jin)、化(hua)(hua)(hua)工(gong)(gong)等(deng)(deng)行(xing)業則在(zai)(zai)輔助(zhu)(zhu)系統(tong)(tong)中使(shi)(shi)用(yong)(yong)越(yue)來越(yue)多(duo)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)。國(guo)(guo)(guo)內(nei)(nei)(nei)自(zi)(zi)(zi)控(kong)(kong)專業技術人員已越(yue)來越(yue)多(duo)地關(guan)(guan)(guan)(guan)注電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)了(le)(le)。2、簡化(hua)(hua)(hua)管(guan)(guan)路(lu)系統(tong)(tong)自(zi)(zi)(zi)動(dong)(dong)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)工(gong)(gong)作時在(zai)(zai)管(guan)(guan)路(lu)上還(huan)(huan)須(xu)配(pei)用(yong)(yong)一些輔助(zhu)(zhu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)門和管(guan)(guan)件。自(zi)(zi)(zi)動(dong)(dong)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)(de)(de)前面需(xu)(xu)(xu)加裝(zhuang)過(guo)濾器。多(duo)個自(zi)(zi)(zi)控(kong)(kong)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)聯(lian)(lian)合(he)(he)(he)使(shi)(shi)用(yong)(yong)還(huan)(huan)常需(xu)(xu)(xu)安(an)裝(zhuang)單(dan)向閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)以(yi)防(fang)管(guan)(guan)道之間(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)(de)干(gan)擾。單(dan)向電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、組合(he)(he)(he)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)和帶過(guo)濾的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)都(dou)(dou)已在(zai)(zai)簡化(hua)(hua)(hua)管(guan)(guan)路(lu)方(fang)面發揮了(le)(le)作用(yong)(yong)。3、簡化(hua)(hua)(hua)闊門結(jie)(jie)(jie)構(gou)(gou)和工(gong)(gong)藝(yi)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)屬(shu)于原(yuan)理和結(jie)(jie)(jie)構(gou)(gou)都(dou)(dou)簡單(dan)的(de)(de)(de)(de)(de)(de)(de)(de)自(zi)(zi)(zi)動(dong)(dong)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)，但(dan)還(huan)(huan)要(yao)進一步簡化(hua)(hua)(hua)。家電(dian)(dian)(dian)(dian)(dian)(dian)行(xing)業洗衣機、電(dian)(dian)(dian)(dian)(dian)(dian)冰箱(xiang)所(suo)配(pei)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)，其零部(bu)(bu)件的(de)(de)(de)(de)(de)(de)(de)(de)結(jie)(jie)(jie)構(gou)(gou)和工(gong)(gong)藝(yi)都(dou)(dou)適合(he)(he)(he)于大(da)(da)(da)批(pi)量(liang)(liang)(liang)生(sheng)產(chan)。普通電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)線圈部(bu)(bu)件已采用(yong)(yong)塑(su)料封(feng)裝(zhuang)，減少(shao)引出線斷裂的(de)(de)(de)(de)(de)(de)(de)(de)故障，同時易(yi)實(shi)(shi)現防(fang)水、防(fang)爆等(deng)(deng)防(fang)護要(yao)求(qiu)。閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)體、閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)蓋等(deng)(deng)部(bu)(bu)件都(dou)(dou)已采用(yong)(yong)精(jing)(jing)密鑄造(zao)，鍛造(zao)等(deng)(deng)工(gong)(gong)藝(yi)，工(gong)(gong)程塑(su)料電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)也(ye)已批(pi)量(liang)(liang)(liang)上市。國(guo)(guo)(guo)內(nei)(nei)(nei)防(fang)爆電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)已不(bu)只是隔爆型，還(huan)(huan)有澆封(feng)型、本安(an)型。高(gao)壓和高(gao)溫的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)也(ye)出現了(le)(le)簡化(hua)(hua)(hua)了(le)(le)結(jie)(jie)(jie)構(gou)(gou)和工(gong)(gong)藝(yi)。智能化(hua)(hua)(hua)方(fang)向上的(de)(de)(de)(de)(de)(de)(de)(de)發展(zhan)這(zhe)主要(yao)是指電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)如何與智能儀表更好配(pei)合(he)(he)(he)，去(qu)提高(gao)系統(tong)(tong)的(de)(de)(de)(de)(de)(de)(de)(de)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)精(jing)(jing)度(du)(du)(du)和可靠(kao)性。一般(ban)認為位(wei)式調節(jie)難以(yi)達到(dao)很高(gao)精(jing)(jing)度(du)(du)(du)，然(ran)而(er)(er)在(zai)(zai)好多(duo)場合(he)(he)(he)采用(yong)(yong)恰當(dang)的(de)(de)(de)(de)(de)(de)(de)(de)方(fang)式卻可以(yi)達到(dao)所(suo)需(xu)(xu)(xu)的(de)(de)(de)(de)(de)(de)(de)(de)相(xiang)當(dang)高(gao)精(jing)(jing)度(du)(du)(du)，而(er)(er)大(da)(da)(da)大(da)(da)(da)節(jie)省了(le)(le)成本。1、雙聯(lian)(lian)組合(he)(he)(he)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)闊。這(zhe)是一種(zhong)不(bu)同大(da)(da)(da)小的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)組合(he)(he)(he)在(zai)(zai)一起。大(da)(da)(da)量(liang)(liang)(liang)使(shi)(shi)用(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)加油(you)機對油(you)的(de)(de)(de)(de)(de)(de)(de)(de)計量(liang)(liang)(liang)精(jing)(jing)度(du)(du)(du)高(gao)達0.02%，都(dou)(dou)采用(yong)(yong)雙聯(lian)(lian)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)。大(da)(da)(da)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)開啟，使(shi)(shi)得(de)加油(you)在(zai)(zai)較(jiao)短(duan)的(de)(de)(de)(de)(de)(de)(de)(de)時間(jian)(jian)內(nei)(nei)(nei)接(jie)近完(wan)成；然(ran)后大(da)(da)(da)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)關(guan)(guan)(guan)(guan)閉，由小閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)補充(chong)保證流量(liang)(liang)(liang)精(jing)(jing)度(du)(du)(du)。順便(bian)指出國(guo)(guo)(guo)內(nei)(nei)(nei)油(you)庫(ku)大(da)(da)(da)流量(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)計量(liang)(liang)(liang)還(huan)(huan)在(zai)(zai)引進或仿造(zao)國(guo)(guo)(guo)外的(de)(de)(de)(de)(de)(de)(de)(de)結(jie)(jie)(jie)構(gou)(gou)較(jiao)復雜、性能欠穩(wen)定的(de)(de)(de)(de)(de)(de)(de)(de)多(duo)段(duan)關(guan)(guan)(guan)(guan)閉閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)，這(zhe)種(zhong)產(chan)品(pin)并非世界的(de)(de)(de)(de)(de)(de)(de)(de)專業公司所(suo)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)，因為市場需(xu)(xu)(xu)求(qiu)量(liang)(liang)(liang)沒達到(dao)足以(yi)引以(yi)他們(men)的(de)(de)(de)(de)(de)(de)(de)(de)興趣。實(shi)(shi)際上我們(men)的(de)(de)(de)(de)(de)(de)(de)(de)油(you)庫(ku)采用(yong)(yong)國(guo)(guo)(guo)內(nei)(nei)(nei)生(sheng)產(chan)的(de)(de)(de)(de)(de)(de)(de)(de)大(da)(da)(da)流量(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)雙聯(lian)(lian)組合(he)(he)(he)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)，效(xiao)果會好得(de)多(duo)。雙聯(lian)(lian)組合(he)(he)(he)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)還(huan)(huan)常用(yong)(yong)來控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)溫度(du)(du)(du)、壓力(li)、液位(wei)等(deng)(deng)參(can)數。大(da)(da)(da)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)保證基礎量(liang)(liang)(liang)，小閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)提供補償量(liang)(liang)(liang)。在(zai)(zai)參(can)數相(xiang)對穩(wen)定的(de)(de)(de)(de)(de)(de)(de)(de)系統(tong)(tong)中，這(zhe)種(zhong)位(wei)式控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)能達相(xiang)當(dang)高(gao)精(jing)(jing)度(du)(du)(du)。好些參(can)數變化(hua)(hua)(hua)較(jiao)大(da)(da)(da)的(de)(de)(de)(de)(de)(de)(de)(de)系統(tong)(tong)，變化(hua)(hua)(hua)的(de)(de)(de)(de)(de)(de)(de)(de)速率仍受(shou)一定制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)約，例如溫度(du)(du)(du)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)系統(tong)(tong)，仍受(shou)熱慣(guan)性的(de)(de)(de)(de)(de)(de)(de)(de)影響。所(suo)以(yi)運(yun)用(yong)(yong)得(de)當(dang)的(de)(de)(de)(de)(de)(de)(de)(de)雙聯(lian)(lian)組合(he)(he)(he)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)在(zai)(zai)滿足控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)要(yao)求(qiu)的(de)(de)(de)(de)(de)(de)(de)(de)前提下(xia)相(xiang)對于調節(jie)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)能大(da)(da)(da)幅降低成本。

REXROTH電磁閥組成構造,REXROTH電磁閥