選用防爆電機時要注意以下三點

人(ren)氣：1315   發表時(shi)間：2019-12-11 05:01:16

在選用防(fang)爆電機時要注意以下三(san)點

1、隔爆(bao)型電機的隔爆(bao)等級符(fu)合易燃、易爆(bao)環(huan)境(jing)的要求即可，不(bu)要選級別高的。　

2、按(an)照實(shi)際使用情況確定技術指標，技術指標中 η、cos φ越(yue)高越(yue)好，節省電能，其余指標則不盡然。

比如拖動軸(zhou)流式泵和風機的(de)(de)電機，Tst在0.6~0.8的(de)(de)范(fan)圍內即可，Tm也(ye)(ye)不必高(gao)，1.6左(zuo)右就能(neng)滿足(zu)使用(yong)要求(qiu)。若買方在這(zhe)兩項指標上(shang)稍(shao)許松動一點，設(she)計者(zhe)可以把從這(zhe)挖出的(de)(de)過(guo)剩(sheng)功能(neng)貼(tie)補(bu)到Ist上(shang)，即用(yong)于(yu)降低Ist。這(zhe)對于(yu)網(wang)絡容量小(xiao)的(de)(de)使用(yong)場所則很(hen)(hen)有實際意(yi)義(yi)。二極電機的(de)(de)負荷絕大部(bu)分是(shi)風機和泵，Tst高(gao)沒(mei)必要。若生產(chan)廠(chang)過(guo)于(yu)追求(qiu)這(zhe)一指標，將鑄(zhu)鋁轉子槽形(xing)的(de)(de)上(shang)半部(bu)設(she)計得很(hen)(hen)窄，給制造增加不必要的(de)(de)難(nan)度(du);使用(yong)中由斷條、細條引發的(de)(de)故障也(ye)(ye)多。

3、防(fang)護等級要選得適中。

IP54與IP44之(zhi)(zhi)差主(zhu)要(yao)在防塵功(gong)能(neng)上(shang)。有的(de)買主(zhu)為了省錢，在該用IP54的(de)場所中選用IP44的(de)電機，使(shi)電機軸承過早(zao)地(di)損壞。反之(zhi)(zhi)，IP44 能(neng)滿足使(shi)用要(yao)求(qiu)時(shi)，無需選P54的(de)。后者(zhe)要(yao)加設橡(xiang)膠密(mi)封圈，維護(hu)上(shang)不(bu)如(ru)前者(zhe)。

防爆電(dian)機防護等級(ji)最低為 IP55，而普通電(dian)機有IPIP23、IP44、IP54、IP55、IP56不(bu)等，故而從外形(xing)可以分辨出。   

防爆電機按產品類型可分

可(ke)分為(wei)防爆(bao)(bao)異步電(dian)機(ji)、防爆(bao)(bao)同步電(dian)機(ji)及防爆(bao)(bao)直(zhi)流電(dian)機(ji)等

可分為煤(mei)礦(kuang)井下用防爆電機及工廠用防爆電機

可(ke)分(fen)為(wei)煤礦運(yun)輸(shu)機用(yong)(yong)防(fang)(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)(dian)機、煤礦絞車用(yong)(yong)防(fang)(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)(dian)機、裝巖機用(yong)(yong)防(fang)(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)(dian)機、煤礦局(ju)部(bu)扇風機用(yong)(yong)防(fang)(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)(dian)機、閥門用(yong)(yong)防(fang)(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)(dian)機、風機用(yong)(yong)防(fang)(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)(dian)機、船用(yong)(yong)防(fang)(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)(dian)機、關(guan)注修心養身密碼公(gong)眾號，學習(xi)養生和(he)防(fang)(fang)(fang)爆(bao)知識。起重冶 金用(yong)(yong)防(fang)(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)(dian)機及加氫(qing)裝置配套用(yong)(yong)增(zeng)安型無刷勵磁(ci)同步(bu)電(dian)(dian)(dian)(dian)(dian)機等。此(ci)外，還可(ke)以按額定電(dian)(dian)(dian)(dian)(dian)壓(ya)、效率(lv)等技(ji)術指標來(lai)分(fen)，如高壓(ya)防(fang)(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)(dian)機、高效防(fang)(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)(dian)機、高轉(zhuan)差率(lv)防(fang)(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)(dian)機 及高起動轉(zhuan)矩防(fang)(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)(dian)機等。

    買(mai)防爆電機(ji)選東莞市盈一(yi)機(ji)電設(she)備(bei)有限公司，常年直供