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2SB3系列直行程電動執(zhi)行機(ji)構

◆用(yong)途(tu)和特(te)點       2SB35系(xi)(xi)列為(wei)輸出(chu)推力的(de)(de)(de)(de)電(dian)(dian)動(dong)執(zhi)(zhi)行(xing)機構，對(dui)閉環控(kong)(kong)制(zhi)(zhi)系(xi)(xi)統(tong)中最終(zhong)控(kong)(kong)制(zhi)(zhi)元件(jian)（調節閥）的(de)(de)(de)(de)運行(xing)進(jin)行(xing)控(kong)(kong)制(zhi)(zhi)的(de)(de)(de)(de)一種(zhong)裝(zhuang)置，它可(ke)(ke)以(yi)準(zhun)確的(de)(de)(de)(de)按控(kong)(kong)制(zhi)(zhi)指令(ling)對(dui)系(xi)(xi)統(tong)工(gong)(gong)況介質的(de)(de)(de)(de)壓力、溫(wen)度(du)和流量進(jin)行(xing)自動(dong)調節，是實(shi)現(xian)自動(dong)控(kong)(kong)制(zhi)(zhi)的(de)(de)(de)(de)必不可(ke)(ke)少的(de)(de)(de)(de)驅動(dong)裝(zhuang)置，可(ke)(ke)廣泛用(yong)于電(dian)(dian)站、石(shi)化(hua)(hua)、冶金等(deng)工(gong)(gong)業系(xi)(xi)統(tong)。具(ju)有(you)如下特(te)點：       1. 設計(ji)先(xian)進(jin)、系(xi)(xi)列齊全、能(neng)(neng)充分滿足電(dian)(dian)站等(deng)自動(dong)化(hua)(hua)控(kong)(kong)制(zhi)(zhi)的(de)(de)(de)(de)需要。       2. 結構合理、通用(yong)性強、可(ke)(ke)適應各種(zhong)配(pei)套功能(neng)(neng)的(de)(de)(de)(de)需要，在2SB35上(shang)配(pei)裝(zhuang)LU智(zhi)能(neng)(neng)型(xing)功率換(huan)向(xiang)模(mo)塊時，即為(wei)智(zhi)能(neng)(neng)型(xing)電(dian)(dian)動(dong)執(zhi)(zhi)行(xing)機構；配(pei)上(shang)MU（三相），MD（單相）即為(wei)數字型(xing)電(dian)(dian)動(dong)執(zhi)(zhi)行(xing)機構，為(wei)電(dian)(dian)站DCS技術提供了一種(zhong)可(ke)(ke)靠的(de)(de)(de)(de)智(zhi)能(neng)(neng)裝(zhuang)置。       3.2SB35是2SA35系(xi)(xi)列的(de)(de)(de)(de)派生產品，所(suo)以(yi)2SB35系(xi)(xi)列具(ju)有(you)2SA35的(de)(de)(de)(de)各種(zhong)控(kong)(kong)制(zhi)(zhi)功能(neng)(neng)、并(bing)可(ke)(ke)提供二(er)個以(yi)上(shang)的(de)(de)(de)(de)中途(tu)信(xin)號（即開(kai)、關向(xiang)的(de)(de)(de)(de)中途(tu)信(xin)號）。       4.具(ju)有(you)防塵防水(shui)性能(neng)(neng)、防護(hu)(hu)等(deng)級為(wei)IP67。應用(yong)戶要求亦可(ke)(ke)提供防護(hu)(hu)等(deng)級為(wei)IP68的(de)(de)(de)(de)電(dian)(dian)動(dong)執(zhi)(zhi)行(xing)機構。       5. 調節方(fang)便、控(kong)(kong)制(zhi)(zhi)精度(du)高。 ◆技術條(tiao)件(jian)      1.環境溫(wen)度(du)       -20℃ ~ +60℃       2.工(gong)(gong)作(zuo)制(zhi)(zhi)式(shi)       S5周期性間隙工(gong)(gong)作(zuo)制(zhi)(zhi)，允許(xu)最大工(gong)(gong)作(zuo)次數為(wei)1200c/h，最小(xiao)負載持(chi)續為(wei)10%       3.電(dian)(dian)源           380V  50Hz  或  220V   50Hz       4.行(xing)程精度(du)       ≤0.5%       5.轉矩精度(du)       ≤10%       7.閥位信(xin)號       0/4 — 20mA ◆性能(neng)(neng)參數表