精品永久久福利一区二区_久久精品国产亚洲AV影院_国产黄大片在线观看画质优化_影音先锋中文字幕人妻

一、J941H-16C智能一體化防爆開關型電動截止閥廠家

電動截止閥(fa)的(de)閉合原理是，依(yi)靠(kao)電動推力旋轉閥(fa)杠(gang)，使閥(fa)瓣密封面(mian)與閥(fa)座密封面(mian)緊密貼(tie)合，阻止介質流通。

先了(le)解下(xia)截止(zhi)(zhi)閥(fa)(fa)的原(yuan)理：截止(zhi)(zhi)閥(fa)(fa)的閉合(he)原(yuan)理是，依靠電動推力旋(xuan)轉閥(fa)(fa)杠(gang)，使閥(fa)(fa)瓣密封面(mian)與閥(fa)(fa)座密封面(mian)緊密貼合(he)，阻(zu)止(zhi)(zhi)介(jie)質流通。

知道原(yuan)理后(hou)不難看出我們需要選用多圈(quan)旋(xuan)轉的執行(xing)(xing)器(qi)(qi)即為(wei)多回轉執行(xing)(xing)器(qi)(qi)才行(xing)(xing)。

二、J941H-16C智能一體化防爆開關型電動截止閥改造方案

（ 1 ）如何選擇執行(xing)器

根據(ju)生(sheng)產(chan)工(gong)藝控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)要(yao)(yao)求確定(ding)(ding)電(dian)(dian)(dian)動(dong)(dong)執(zhi)(zhi)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)模式(shi) 電(dian)(dian)(dian)動(dong)(dong)執(zhi)(zhi)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)模式(shi)一般分(fen)為(wei)開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)（開(kai)(kai)(kai)環(huan)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)）和調節型(xing)(xing)(xing)(xing)(xing)(xing)(xing)（閉環(huan)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)）兩大類(lei)。 1．開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)（開(kai)(kai)(kai)環(huan)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)） 開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)電(dian)(dian)(dian)動(dong)(dong)執(zhi)(zhi)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)器(qi)(qi)(qi)(qi)(qi)(qi)一般實現(xian)對(dui)(dui)閥(fa)(fa)(fa)門(men)(men)的(de)(de)(de)開(kai)(kai)(kai)或(huo)關(guan)(guan)(guan)(guan)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)，閥(fa)(fa)(fa)門(men)(men)要(yao)(yao)么處于(yu)(yu)全(quan)開(kai)(kai)(kai)位(wei)(wei)置，要(yao)(yao)么處于(yu)(yu)全(quan)關(guan)(guan)(guan)(guan)位(wei)(wei)置，此(ci)類(lei)閥(fa)(fa)(fa)門(men)(men)不(bu)(bu)需(xu)對(dui)(dui)介(jie)質流量(liang)進(jin)(jin)(jin)(jin)(jin)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing) 控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)。 特別(bie)值(zhi)得一提的(de)(de)(de)是(shi)(shi)開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)電(dian)(dian)(dian)動(dong)(dong)執(zhi)(zhi)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)器(qi)(qi)(qi)(qi)(qi)(qi)因結(jie)(jie)(jie)構形(xing)(xing)式(shi)的(de)(de)(de)不(bu)(bu)同還(huan)可(ke)分(fen)為(wei)分(fen)體(ti)(ti)結(jie)(jie)(jie)構和一體(ti)(ti)化結(jie)(jie)(jie)構。選型(xing)(xing)(xing)(xing)(xing)(xing)(xing)時(shi)(shi)必(bi)需(xu)對(dui)(dui)此(ci)做出(chu)說(shuo)明(ming)，不(bu)(bu)然經常會發生(sheng)在現(xian)場安(an)裝(zhuang)時(shi)(shi)與(yu)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)系(xi)統沖(chong)突等不(bu)(bu)匹配現(xian)像(xiang)。 a)分(fen)體(ti)(ti)結(jie)(jie)(jie)構（通(tong)常稱(cheng)(cheng)為(wei)普通(tong)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)）：控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)單元(yuan)與(yu)電(dian)(dian)(dian)動(dong)(dong)執(zhi)(zhi)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)器(qi)(qi)(qi)(qi)(qi)(qi)分(fen)離，電(dian)(dian)(dian)動(dong)(dong)執(zhi)(zhi)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)器(qi)(qi)(qi)(qi)(qi)(qi)不(bu)(bu)能(neng)(neng)(neng)(neng)單獨實現(xian)對(dui)(dui)閥(fa)(fa)(fa)門(men)(men)的(de)(de)(de)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)，必(bi)需(xu)外加控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)單元(yuan)才能(neng)(neng)(neng)(neng)實現(xian)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)，一般外部采用(yong)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)器(qi)(qi)(qi)(qi)(qi)(qi)或(huo)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)柜形(xing)(xing)式(shi)進(jin)(jin)(jin)(jin)(jin)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)配套。 此(ci)結(jie)(jie)(jie)構的(de)(de)(de)缺點是(shi)(shi)不(bu)(bu)便(bian)(bian)于(yu)(yu)系(xi)統整(zheng)體(ti)(ti)安(an)裝(zhuang)，增(zeng)加接線(xian)及(ji)安(an)裝(zhuang)費(fei)用(yong)，且容易(yi)(yi)出(chu)現(xian)故障，當(dang)故障發生(sheng)時(shi)(shi)不(bu)(bu)便(bian)(bian)于(yu)(yu)診斷和維修(xiu)，性(xing)價比不(bu)(bu)理想(xiang)。 b)一體(ti)(ti)化結(jie)(jie)(jie)構（通(tong)常稱(cheng)(cheng)為(wei)整(zheng)體(ti)(ti)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)）：控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)單元(yuan)與(yu)電(dian)(dian)(dian)動(dong)(dong)執(zhi)(zhi)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)器(qi)(qi)(qi)(qi)(qi)(qi)封裝(zhuang)成一體(ti)(ti)，無(wu)需(xu)外配控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)單元(yuan)即可(ke)現(xian)實就地(di)操(cao)(cao)作(zuo)，遠程只需(xu)輸出(chu)相(xiang)關(guan)(guan)(guan)(guan)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)信(xin)(xin)息(xi)就可(ke)對(dui)(dui)其(qi)進(jin)(jin)(jin)(jin)(jin)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)操(cao)(cao)作(zuo)。 此(ci)結(jie)(jie)(jie)構的(de)(de)(de)優點是(shi)(shi)方便(bian)(bian)系(xi)統整(zheng)體(ti)(ti)安(an)裝(zhuang)，減少接線(xian)及(ji)安(an)裝(zhuang)費(fei)用(yong)，容易(yi)(yi)診斷并排(pai)除故障。但傳(chuan)統的(de)(de)(de)一體(ti)(ti)化結(jie)(jie)(jie)構產(chan)品(pin)也(ye)有很多不(bu)(bu)完善的(de)(de)(de)地(di)方，所以(yi)產(chan)生(sheng)了(le)智能(neng)(neng)(neng)(neng)電(dian)(dian)(dian)動(dong)(dong)執(zhi)(zhi)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)器(qi)(qi)(qi)(qi)(qi)(qi)，關(guan)(guan)(guan)(guan)于(yu)(yu)智能(neng)(neng)(neng)(neng)電(dian)(dian)(dian)動(dong)(dong)執(zhi)(zhi)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)器(qi)(qi)(qi)(qi)(qi)(qi)后面將再(zai)做說(shuo)明(ming)。 2．調節型(xing)(xing)(xing)(xing)(xing)(xing)(xing)（閉環(huan)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)） 調節型(xing)(xing)(xing)(xing)(xing)(xing)(xing)電(dian)(dian)(dian)動(dong)(dong)執(zhi)(zhi)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)器(qi)(qi)(qi)(qi)(qi)(qi)不(bu)(bu)僅具有開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)一體(ti)(ti)化結(jie)(jie)(jie)構的(de)(de)(de)功能(neng)(neng)(neng)(neng)，它還(huan)能(neng)(neng)(neng)(neng)對(dui)(dui)閥(fa)(fa)(fa)門(men)(men)進(jin)(jin)(jin)(jin)(jin)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing) 控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)，從而 調節介(jie)質流量(liang)。因篇幅有限其(qi)工(gong)作(zuo)原(yuan)(yuan)理在此(ci)不(bu)(bu)作(zuo)詳細說(shuo)明(ming)。下面就調節型(xing)(xing)(xing)(xing)(xing)(xing)(xing)電(dian)(dian)(dian)動(dong)(dong)執(zhi)(zhi)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)器(qi)(qi)(qi)(qi)(qi)(qi)選型(xing)(xing)(xing)(xing)(xing)(xing)(xing)時(shi)(shi)需(xu)注明(ming)的(de)(de)(de)參數做簡(jian)要(yao)(yao)說(shuo)明(ming)。 a)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)信(xin)(xin)號(hao)類(lei)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)（電(dian)(dian)(dian)流、電(dian)(dian)(dian)壓） 調節型(xing)(xing)(xing)(xing)(xing)(xing)(xing)電(dian)(dian)(dian)動(dong)(dong)執(zhi)(zhi)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)器(qi)(qi)(qi)(qi)(qi)(qi)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)信(xin)(xin)號(hao)一般有電(dian)(dian)(dian)流信(xin)(xin)號(hao)(4～20mA、0～10mA)或(huo)電(dian)(dian)(dian)壓信(xin)(xin)號(hao)(0～5V、1～5V)，選型(xing)(xing)(xing)(xing)(xing)(xing)(xing)時(shi)(shi)需(xu)明(ming)確其(qi)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)信(xin)(xin)號(hao)類(lei)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)及(ji)參數。 b)工(gong)作(zuo)形(xing)(xing)式(shi)（電(dian)(dian)(dian)開(kai)(kai)(kai)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)、電(dian)(dian)(dian)關(guan)(guan)(guan)(guan)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)） 調節型(xing)(xing)(xing)(xing)(xing)(xing)(xing)電(dian)(dian)(dian)動(dong)(dong)執(zhi)(zhi)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)器(qi)(qi)(qi)(qi)(qi)(qi)工(gong)作(zuo)方式(shi)一般為(wei)電(dian)(dian)(dian)開(kai)(kai)(kai)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)（以(yi)4～20mA的(de)(de)(de)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)為(wei)例，電(dian)(dian)(dian)開(kai)(kai)(kai)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)是(shi)(shi)指(zhi)4mA信(xin)(xin)號(hao)對(dui)(dui)應(ying)(ying)的(de)(de)(de)是(shi)(shi)閥(fa)(fa)(fa)關(guan)(guan)(guan)(guan)，20mA對(dui)(dui)應(ying)(ying)的(de)(de)(de)是(shi)(shi)閥(fa)(fa)(fa)開(kai)(kai)(kai)），另一種為(wei)電(dian)(dian)(dian)關(guan)(guan)(guan)(guan)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)（以(yi) 4-20mA的(de)(de)(de)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)為(wei)例，電(dian)(dian)(dian)開(kai)(kai)(kai)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)是(shi)(shi)指(zhi)4mA信(xin)(xin)號(hao)對(dui)(dui)應(ying)(ying)的(de)(de)(de)是(shi)(shi)閥(fa)(fa)(fa)開(kai)(kai)(kai)，20mA對(dui)(dui)應(ying)(ying)的(de)(de)(de)是(shi)(shi)閥(fa)(fa)(fa)關(guan)(guan)(guan)(guan)）。一般情(qing)況下選型(xing)(xing)(xing)(xing)(xing)(xing)(xing)需(xu)明(ming)確工(gong)作(zuo)形(xing)(xing)式(shi)，很多產(chan)品(pin)在出(chu)廠(chang)后并不(bu)(bu)能(neng)(neng)(neng)(neng)進(jin)(jin)(jin)(jin)(jin)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)修(xiu)改(gai)(gai)， 奧(ao)美(mei)閥(fa)(fa)(fa)控(kong)(kong)(kong)(kong)(kong)(kong)生(sheng)產(chan)的(de)(de)(de)智能(neng)(neng)(neng)(neng)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)電(dian)(dian)(dian)動(dong)(dong)執(zhi)(zhi)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)器(qi)(qi)(qi)(qi)(qi)(qi)可(ke)以(yi)通(tong)過(guo)(guo)現(xian)場設定(ding)(ding)隨時(shi)(shi)修(xiu)改(gai)(gai)。 c)失信(xin)(xin)號(hao)保(bao)(bao)護(hu)(hu) 失信(xin)(xin)號(hao)保(bao)(bao)護(hu)(hu)是(shi)(shi)指(zhi)因線(xian)路等故障造(zao)成控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)信(xin)(xin)號(hao)丟(diu)失時(shi)(shi)，電(dian)(dian)(dian)動(dong)(dong)執(zhi)(zhi)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)器(qi)(qi)(qi)(qi)(qi)(qi)將控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)閥(fa)(fa)(fa)門(men)(men)啟閉到設定(ding)(ding)的(de)(de)(de)保(bao)(bao)護(hu)(hu)值(zhi)，常見(jian)的(de)(de)(de)保(bao)(bao)護(hu)(hu)值(zhi)為(wei)全(quan)開(kai)(kai)(kai)、全(quan)關(guan)(guan)(guan)(guan)、保(bao)(bao)持原(yuan)(yuan)位(wei)(wei)三種情(qing)況，且出(chu)廠(chang)后不(bu)(bu)易(yi)(yi)修(xiu) 改(gai)(gai)。奧(ao)美(mei)閥(fa)(fa)(fa)控(kong)(kong)(kong)(kong)(kong)(kong)生(sheng)產(chan)的(de)(de)(de)智能(neng)(neng)(neng)(neng)電(dian)(dian)(dian)動(dong)(dong)執(zhi)(zhi)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)器(qi)(qi)(qi)(qi)(qi)(qi)可(ke)以(yi)通(tong)過(guo)(guo)現(xian)場設定(ding)(ding)進(jin)(jin)(jin)(jin)(jin)行(xing)(xing)(xing)(xing)(xing)(xing)(xing)(xing)靈(ling)活修(xiu)改(gai)(gai)，并可(ke)設定(ding)(ding)任(ren)意位(wei)(wei)置（0~ ）為(wei)保(bao)(bao)護(hu)(hu)值(zhi)。