耐腐蝕(shi)化工離(li)心泵的種類有很多,在使用中可分(fen)為(wei)民用泵和(he)工業泵,在輸送介質中可分(fen)為(wei)清水(shui)泵、雜質泵和(he)耐腐(fu)蝕泵等。耐腐(fu)蝕化(hua)工離心泵是工業生產中常用(yong)的(de)化工離心泵(beng),強(qiang)耐腐蝕(shi)離心泵(beng)通常采(cai)用(yong)電動(dong)(dong)(dong)(dong)機(ji)帶動(dong)(dong)(dong)(dong)泵(beng)運(yun)轉,對于強(qiang)耐腐蝕(shi)泵(beng)主要(yao)的(de)驅動(dong)(dong)(dong)(dong)設備電機(ji),在(zai)啟動(dong)(dong)(dong)(dong)的(de)時候(hou)有很多種方式。其中包括直接(jie)啟動(dong)(dong)(dong)(dong)、自耦減壓(ya)啟動(dong)(dong)(dong)(dong)、Y-Δ 降壓(ya)啟動(dong)(dong)(dong)(dong)、軟啟動(dong)(dong)(dong)(dong)器啟動(dong)(dong)(dong)(dong)、變(bian)頻(pin)器啟動(dong)(dong)(dong)(dong)等等方式。那么接(jie)下(xia)來跟著杰凱小編一起了解下(xia)離心泵(beng)的(de)電機(ji)啟動(dong)(dong)(dong)(dong)有什么要(yao)求以及如何啟動(dong)(dong)(dong)(dong)吧!
一(yi).耐(nai)腐蝕泵電機(ji)啟(qi)動要求
1.有足夠的啟動(dong)轉矩,保(bao)證泵能正常(chang)啟動(dong)。
2.在滿足(zu)啟(qi)動轉矩的要求下,啟(qi)動電流越小(xiao)越好(hao)。要求啟(qi)動平(ping)穩,減小(xiao)對泵機(ji)械結構的沖擊。
3.啟動電流對電網(wang)沖擊越小越好,啟動設備安全可靠(kao),操作方便。
4.啟動(dong)過程(cheng)中損耗越小越好。
二(er).化工離(li)心泵(beng)自(zi)耦減(jian)壓(ya)啟動
自耦減壓(ya)啟(qi)(qi)動(dong)(dong)(dong)是籠型(xing)感應電動(dong)(dong)(dong)機(ji)的(de)啟(qi)(qi)動(dong)(dong)(dong)方(fang)法之一。其具有電路結構緊湊(cou),不(bu)受電動(dong)(dong)(dong)機(ji)繞組接線方(fang)式(shi)(shi)的(de)限制。還可按允許(xu)的(de)啟(qi)(qi)動(dong)(dong)(dong)電流和所需(xu)要的(de)啟(qi)(qi)動(dong)(dong)(dong)轉矩(ju)選用不(bu)同的(de)變(bian)壓(ya)器(qi)電壓(ya)抽頭,故適用于(yu)容量(liang)較大(da)的(de)電動(dong)(dong)(dong)機(ji)。自耦變(bian)壓(ya)器(qi)的(de)次級設有多個抽頭,可輸出(chu)不(bu)同的(de)電壓(ya)。一般自耦變(bian)壓(ya)器(qi)次級電壓(ya)是初(chu)級的(de)40%、65%、80%等(deng),可根據啟(qi)(qi)動(dong)(dong)(dong)轉矩(ju)需(xu)要選用。這種啟(qi)(qi)動(dong)(dong)(dong)方(fang)式(shi)(shi)是在(zai)定子串電阻或(huo)電抗器(qi)的(de)降壓(ya)啟(qi)(qi)動(dong)(dong)(dong)方(fang)式(shi)(shi),此方(fang)式(shi)(shi)只適用于(yu)空載或(huo)輕載啟(qi)(qi)動(dong)(dong)(dong)的(de)場合。
-THE END-
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