由于防爆(bao)(bao)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)在(zai)運行(xing)中(zhong)存在(zai)共振，通常(chang)在(zai)一定(ding)的(de)(de)轉速下出(chu)現(xian)，在(zai)啟動(dong)過(guo)程中(zhong)轉瞬即(ji)逝。因此，底座的(de)(de)變形不(bu)易檢測。老化不(bu)當造成的(de)(de)變形不(bu)易察覺。焊(han)接應(ying)力(li)完全釋放需(xu)要很(hen)長時間(jian)，所以在(zai)加(jia)工過(guo)程中(zhong)很(hen)難發現(xian)，特(te)(te)別是在(zai)工期較短(duan)的(de)(de)情(qing)況下。因此，防爆(bao)(bao)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)廠家在(zai)生產電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)時候要非常(chang)注(zhu)意。風扇是防爆(bao)(bao)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)重要部(bu)件(jian)之(zhi)一。除了一些特(te)(te)殊系列的(de)(de)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)產品外，大部(bu)分防爆(bao)(bao)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)都應(ying)配(pei)備(bei)風扇，以改善防爆(bao)(bao)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)散(san)熱條(tiao)件(jian)。防爆(bao)(bao)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)風機(ji)(ji)(ji)(ji)(ji)(ji)(ji)按安裝位(wei)置可分為內風機(ji)(ji)(ji)(ji)(ji)(ji)(ji)和外風機(ji)(ji)(ji)(ji)(ji)(ji)(ji)。內部(bu)風扇位(wei)于防爆(bao)(bao)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)內腔中(zhong)，一般與電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)轉子(zi)動(dong)態平衡。防爆(bao)(bao)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)常(chang)常(chang)用在(zai)具有危險(xian)的(de)(de)環境當中(zhong)，為現(xian)代工業化的(de)(de)發展保(bao)駕護(hu)航。河南工業防爆(bao)(bao)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)

如果電(dian)(dian)壓過低無法啟動(dong)防(fang)爆電(dian)(dian)機(ji)(ji)，經(jing)檢查驗證后可采(cai)取以下補救措施(shi)：(1)接(jie)(jie)錯可改星形接(jie)(jie)法(Y)轉(zhuan)三(san)角形接(jie)(jie)法；(2)盡量縮短電(dian)(dian)源(yuan)線(xian)(xian)的(de)(de)(de)長(chang)度，適當增加電(dian)(dian)源(yuan)線(xian)(xian)的(de)(de)(de)橫截面；(3)根(gen)據實際情況，適當提高變壓器低壓側(ce)的(de)(de)(de)輸出電(dian)(dian)壓。接(jie)(jie)通電(dian)(dian)源(yuan)后，防(fang)爆電(dian)(dian)機(ji)(ji)只有(you)嗡(weng)嗡(weng)聲，但在(zai)防(fang)爆電(dian)(dian)機(ji)(ji)不能(neng)正常啟動(dong)時出現此類(lei)故障(zhang)。可能(neng)的(de)(de)(de)原因有(you)：(1)三(san)相(xiang)電(dian)(dian)源(yuan)未(wei)完全接(jie)(jie)通；(2)拖(tuo)曳(ye)負載(zai)因故障(zhang)卡滯；(3)定(ding)子(zi)和(he)繞(rao)組(zu)的(de)(de)(de)引出線(xian)(xian)首尾連接(jie)(jie)問題(ti)，也可能(neng)是繞(rao)組(zu)的(de)(de)(de)接(jie)(jie)線(xian)(xian)出了(le)問題(ti)導(dao)致(zhi)的(de)(de)(de)。(4)定(ding)子(zi)或轉(zhuan)子(zi)繞(rao)組(zu)的(de)(de)(de)一相(xiang)開路；(5)定(ding)轉(zhuan)子(zi)槽配合不正確（一般發生在(zai)電(dian)(dian)機(ji)(ji)換極后）。銀川防(fang)爆電(dian)(dian)機(ji)(ji)價位(wei)化(hua)學(xue)工業(ye)防(fang)爆電(dian)(dian)機(ji)(ji)的(de)(de)(de)啟動(dong)和(he)停止過程平穩，減少了(le)機(ji)(ji)械(xie)設備的(de)(de)(de)振動(dong)和(he)噪音。

中(zhong)小型電(dian)(dian)(dian)動(dong)(dong)機(ji)一(yi)般多采(cai)用(yong)滾動(dong)(dong)軸(zhou)承(cheng)(cheng)(cheng)。小型電(dian)(dian)(dian)動(dong)(dong)機(ji)一(yi)般前后端均(jun)用(yong)滾珠(zhu)軸(zhou)承(cheng)(cheng)(cheng)，中(zhong)型電(dian)(dian)(dian)動(dong)(dong)機(ji)的(de)(de)傳動(dong)(dong)端采(cai)用(yong)滾柱軸(zhou)承(cheng)(cheng)(cheng)，另一(yi)端采(cai)用(yong)滾珠(zhu)抽承(cheng)(cheng)(cheng)。在隔爆異步(bu)電(dian)(dian)(dian)動(dong)(dong)機(ji)的(de)(de)故(gu)障(zhang)中(zhong)，軸(zhou)承(cheng)(cheng)(cheng)的(de)(de)損壞也占(zhan)有(you)一(yi)定(ding)的(de)(de)比(bi)例，所以軸(zhou)承(cheng)(cheng)(cheng)的(de)(de)保養和維修(xiu)也很重(zhong)要。軸(zhou)承(cheng)(cheng)(cheng)發(fa)熱的(de)(de)原因和處理：軸(zhou)承(cheng)(cheng)(cheng)出現發(fa)熱故(gu)障(zhang)時(shi)，輕則(ze)使潤(run)滑脂熔化漏出，重(zhong)則(ze)將軸(zhou)承(cheng)(cheng)(cheng)燒壞。軸(zhou)承(cheng)(cheng)(cheng)產生發(fa)熱故(gu)障(zhang)的(de)(de)原因如下(xia)：軸(zhou)承(cheng)(cheng)(cheng)蓋與軸(zhou)摩擦(ca)(ca)，由(you)于軸(zhou)承(cheng)(cheng)(cheng)蓋內圓(yuan)偏心或(huo)裝配時(shi)被(bei)敲出毛(mao)刺，造成局部與軸(zhou)相擦(ca)(ca)使軸(zhou)發(fa)熱。軸(zhou)承(cheng)(cheng)(cheng)蓋上的(de)(de)毛(mao)刺可用(yong)細坐(zuo)修(xiu)整，如軸(zhou)承(cheng)(cheng)(cheng)蓋內圓(yuan)偏心，可再(zai)上車床(chuang)加(jia)工修(xiu)整。如軸(zhou)承(cheng)(cheng)(cheng)蓋與軸(zhou)都已磨(mo)損，可將軸(zhou)重(zhong)新磨(mo)光，軸(zhou)承(cheng)(cheng)(cheng)蓋一(yi)般需更換新的(de)(de)。

粉(fen)塵(chen)防爆電(dian)(dian)機(ji)，指(zhi)其外(wai)(wai)殼(ke)(ke)按規定條件設計制造，能(neng)阻(zu)止(zhi)粉(fen)塵(chen)進(jin)(jin)入電(dian)(dian)機(ji)外(wai)(wai)殼(ke)(ke)內(nei)或雖(sui)不(bu)能(neng)完全阻(zu)止(zhi)粉(fen)塵(chen)進(jin)(jin)入，但其進(jin)(jin)入量不(bu)妨礙(ai)電(dian)(dian)機(ji)安全運(yun)行，且(qie)內(nei)部粉(fen)塵(chen)的(de)堆積(ji)不(bu)易(yi)產生點(dian)(dian)燃(ran)危險(xian)(xian)，使(shi)用(yong)時也不(bu)會引起周圍(wei)爆裂性(xing)粉(fen)塵(chen)混合物(wu)爆裂的(de)電(dian)(dian)機(ji)。其主要特(te)點(dian)(dian)是：(1)外(wai)(wai)殼(ke)(ke)具有較高的(de)密封(feng)性(xing)，以(yi)減少或阻(zu)止(zhi)粉(fen)塵(chen)進(jin)(jin)入外(wai)(wai)殼(ke)(ke)內(nei)，即使(shi)進(jin)(jin)入，其進(jin)(jin)入量也不(bu)至于形(xing)成點(dian)(dian)燃(ran)危險(xian)(xian)。(2)控(kong)制外(wai)(wai)殼(ke)(ke)較高表(biao)面(mian)允許(xu)溫(wen)度(du)不(bu)超過(guo)規定的(de)溫(wen)度(du)組別。已(yi)用(yong)于國家(jia)糧(liang)食儲備庫的(de)機(ji)械化設備上。粉(fen)塵(chen)防爆電(dian)(dian)氣設備的(de)國家(jia)標準為GBl2476．1—90《爆裂性(xing)粉(fen)塵(chen)環境(jing)用(yong)防爆電(dian)(dian)氣設備》。防爆電(dian)(dian)機(ji)還需要具備耐高溫(wen)、耐腐蝕、抗震動等特(te)點(dian)(dian)，在極端環境(jing)下也能(neng)安全可靠地運(yun)行。

防爆(bao)(bao)電(dian)機(ji)(ji)(ji)廠家要(yao)求產(chan)品使用環(huan)境(jing)溫(wen)(wen)(wen)度(du)(du)(du)(du)為-20～40℃，溫(wen)(wen)(wen)度(du)(du)(du)(du)組別為T4，較(jiao)高(gao)表面溫(wen)(wen)(wen)度(du)(du)(du)(du)不超過(guo)135℃。如(ru)果(guo)環(huan)境(jing)溫(wen)(wen)(wen)度(du)(du)(du)(du)超過(guo)40°C，會不會影(ying)響(xiang)電(dian)機(ji)(ji)(ji)？防爆(bao)(bao)電(dian)機(ji)(ji)(ji)的(de)(de)高(gao)溫(wen)(wen)(wen)主要(yao)影(ying)響(xiang)電(dian)機(ji)(ji)(ji)材(cai)料的(de)(de)絕(jue)緣。如(ru)果(guo)溫(wen)(wen)(wen)度(du)(du)(du)(du)過(guo)高(gao)，電(dian)機(ji)(ji)(ji)的(de)(de)絕(jue)緣材(cai)料會熔化，造(zao)成短路(lu)，會燒(shao)壞防爆(bao)(bao)電(dian)機(ji)(ji)(ji)。環(huan)境(jing)溫(wen)(wen)(wen)度(du)(du)(du)(du)高(gao)對防爆(bao)(bao)電(dian)機(ji)(ji)(ji)有什么影(ying)響(xiang)？電(dian)機(ji)(ji)(ji)絕(jue)緣程度(du)(du)(du)(du)是指所用絕(jue)緣材(cai)料的(de)(de)耐熱程度(du)(du)(du)(du)。根據絕(jue)緣材(cai)料的(de)(de)耐高(gao)溫(wen)(wen)(wen)能力(li)，為其規定(ding)了7個較(jiao)高(gao)允許溫(wen)(wen)(wen)度(du)(du)(du)(du)，分為Y、A、E、B、F、H、C。7度(du)(du)(du)(du)，較(jiao)高(gao)工作溫(wen)(wen)(wen)度(du)(du)(du)(du)90℃、105℃、120℃、130℃、155℃、180℃及180℃以上(shang)。防爆(bao)(bao)電(dian)機(ji)(ji)(ji)采(cai)用緊湊的(de)(de)結構設計，占地面積(ji)小，便于安裝和(he)維(wei)護。山西(xi)防爆(bao)(bao)電(dian)機(ji)(ji)(ji)多(duo)少(shao)錢一臺

化學工(gong)(gong)業防(fang)(fang)爆電機具有靈活的安(an)裝方式，適應不同的工(gong)(gong)業設備布局要(yao)求。河南(nan)工(gong)(gong)業防(fang)(fang)爆電機

防(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)機(ji)的(de)(de)(de)防(fang)(fang)爆(bao)性(xing)能(neng)(neng)是其(qi)設(she)計的(de)(de)(de)關鍵。防(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)機(ji)在(zai)正常運(yun)行(xing)時(shi)，可(ke)(ke)能(neng)(neng)會產(chan)生(sheng)火(huo)花、電(dian)(dian)(dian)(dian)弧(hu)等(deng)危險因素。因此，在(zai)設(she)計防(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)機(ji)時(shi)，必須(xu)采取一定(ding)的(de)(de)(de)措(cuo)施(shi)來(lai)確(que)保(bao)其(qi)防(fang)(fang)爆(bao)性(xing)能(neng)(neng)。這(zhe)些(xie)措(cuo)施(shi)包(bao)括：選(xuan)用防(fang)(fang)爆(bao)型式、采用隔爆(bao)結構(gou)、設(she)置過熱保(bao)護裝置等(deng)。通過這(zhe)些(xie)措(cuo)施(shi)，可(ke)(ke)以(yi)(yi)有效地降低(di)防(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)機(ji)內部產(chan)生(sheng)的(de)(de)(de)火(huo)花、電(dian)(dian)(dian)(dian)弧(hu)等(deng)危險因素，從(cong)而確(que)保(bao)防(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)機(ji)的(de)(de)(de)安全運(yun)行(xing)。防(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)機(ji)的(de)(de)(de)結構(gou)緊(jin)湊(cou)也是其(qi)設(she)計的(de)(de)(de)重要特(te)點之(zhi)一。結構(gou)緊(jin)湊(cou)的(de)(de)(de)防(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)機(ji)不僅可(ke)(ke)以(yi)(yi)節省空間，降低(di)設(she)備(bei)(bei)的(de)(de)(de)占地面積，還(huan)可(ke)(ke)以(yi)(yi)減(jian)少設(she)備(bei)(bei)的(de)(de)(de)運(yun)輸成本(ben)。此外，結構(gou)緊(jin)湊(cou)的(de)(de)(de)防(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)機(ji)還(huan)可(ke)(ke)以(yi)(yi)簡化設(she)備(bei)(bei)的(de)(de)(de)安裝和維護工作(zuo)，提高設(she)備(bei)(bei)的(de)(de)(de)可(ke)(ke)靠性(xing)和使用壽命(ming)。為(wei)了實現結構(gou)緊(jin)湊(cou)的(de)(de)(de)目(mu)標，防(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)機(ji)的(de)(de)(de)設(she)計者需要在(zai)選(xuan)材、制造工藝等(deng)方面進行(xing)充分的(de)(de)(de)考慮和優化。河南工業防(fang)(fang)爆(bao)電(dian)(dian)(dian)(dian)機(ji)

本文來自(zi)四川精碳偉業環(huan)保科技有限責任公(gong)司：//wasul.cn/Article/26e0099973.html