廠家推薦伯納德電子式調節型電動執行器

 調節器或變(bian)送器的(de)模(mo)擬(ni)信(xin)(xin)號(hao)(hao)(hao)(hao)經(jing)模(mo)數轉(zhuan)換(huan)后進入位(wei)(wei)(wei)置(zhi)(zhi)定(ding)位(wei)(wei)(wei)器，位(wei)(wei)(wei)置(zhi)(zhi)定(ding)位(wei)(wei)(wei)器的(de)微(wei)機定(ding)期檢測這個輸入信(xin)(xin)號(hao)(hao)(hao)(hao)和位(wei)(wei)(wei)置(zhi)(zhi)反饋信(xin)(xin)號(hao)(hao)(hao)(hao)，當(dang)兩個信(xin)(xin)號(hao)(hao)(hao)(hao)不(bu)平衡(heng)時，偏(pian)差一(yi)旦超出列區，立刻發出放大的(de)控(kong)制信(xin)(xin)號(hao)(hao)(hao)(hao)，驅(qu)動(dong)智(zhi)能(neng)位(wei)(wei)(wei)置(zhi)(zhi)定(ding)位(wei)(wei)(wei)器中的(de)三相(xiang)可(ke)逆固體繼電器或可(ke)控(kong)硅，使其(qi)導通帶動(dong)電機向減小(xiao)偏(pian)差方向運(yun)轉(zhuan)，進而帶動(dong)減速機構井改變(bian)閥門(men)的(de)開充(chong)。與(yu)此(ci)同時，微(wei)機也將(jiang)閥門(men)開度(du)的(de)位(wei)(wei)(wei)置(zhi)(zhi)信(xin)(xin)號(hao)(hao)(hao)(hao)轉(zhuan)換(huan)為數字脈沖(chong)信(xin)(xin)號(hao)(hao)(hao)(hao)送往顯示器，從數顯窗可(ke)觀察閥門(men)的(de)開度(du)。同時也輸出一(yi)個以4-20mA電流(liu)(liu)與(yu)閥門(men)開充(chong)相(xiang)對(dui)應的(de)模(mo)擬(ni)量信(xin)(xin)號(hao)(hao)(hao)(hao)，引電流(liu)(liu)信(xin)(xin)號(hao)(hao)(hao)(hao)與(yu)輸入信(xin)(xin)號(hao)(hao)(hao)(hao)*隔離，為此(ci)可(ke)適應各種控(kong)制系統計(ji)算機或DCS系統。

廠家推薦伯納德電子式調節型電動執行器

SD系列電動執行機構按安裝方式分成二種:
1.直(zhi)聯式(shi)一通(tong)過執(zhi)行(xing)(xing)(xing)機構輸出(chu)部位(wei)的法(fa)蘭與(yu)閥門等直(zhi)接(jie)連接(jie)，這(zhe)樣(yang)執(zhi)行(xing)(xing)(xing)機構可(ke)直(zhi)接(jie)安裝(zhuang)在管道上(shang)多轉多、角行(xing)(xing)(xing)程(cheng)、直(zhi)行(xing)(xing)(xing)程(cheng)均用(yong)(yong)此(ci)種(zhong)方法(fa)安裝(zhuang)。2、底座(zuo)式(shi)一執(zhi)行(xing)(xing)(xing)機構通(tong)過輸出(chu)臂及杠桿與(yu)閥門連接(jie)，此(ci)時執(zhi)行(xing)(xing)(xing)機構需要安裝(zhuang)在-基礎臺座(zuo)上(shang)，僅角行(xing)(xing)(xing)程(cheng)用(yong)(yong)這(zhe)種(zhong)方式(shi)安裝(zhuang)。

SD系列電動(dong)(dong)(dong)執(zhi)行(xing)機(ji)構(gou)(gou)是自(zi)動(dong)(dong)(dong)調節系統(tong)的(de)終端控制(zhi)裝置，它接收來自(zi)調節器(qi)(qi)或(huo)計算(suan)機(ji)送(song)來420mA(或(huo)1-5V)模似量信號(hao)及斷續接點控制(zhi)信號(hao)。輸出力矩或(huo)力，自(zi)動(dong)(dong)(dong)地操縱調節機(ji)構(gou)(gou)，完成自(zi)動(dong)(dong)(dong)調節任務。它也可(ke)以(yi)通過操作器(qi)(qi)實現“手(shou)動(dong)(dong)(dong)自(zi)動(dong)(dong)(dong)”轉換(huan)，切(qie)換(huan)到手(shou)動(dong)(dong)(dong)時，用操作器(qi)(qi)對執(zhi)行(xing)機(ji)構(gou)(gou)進行(xing)遠方控制(zhi)。角行(xing)程(cheng)電動(dong)(dong)(dong)執(zhi)行(xing)機(ji)構(gou)(gou)，可(ke)用于(yu)控制(zhi)各(ge)類轉角90"的(de)閥門如:煤閥、表示滿意代。百葉閥、風(feng)門，旋塞閥，擋(dang)板(ban)閥等(deng)。