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電暈處理機典型的常見故障現象及解決處理方法

2021-12-18【

1. 電(dian)暈電(dian)極運行到不(bu)位

電(dian)暈(yun)(yun)氣缸(gang)故(gu)障。修復(fu)氣缸(gang),使之能(neng)夠正常運(yun)行,將電(dian)極(ji)托舉到放電(dian)位置(zhi)。電(dian)暈(yun)(yun)輥位置(zhi)傳感器(qi)(qi)安裝(zhuang)位置(zhi)不合適(shi)。調整電(dian)暈(yun)(yun)輥位置(zhi)傳感器(qi)(qi),使之處于合適(shi)位置(zhi)并鎖緊。電(dian)暈(yun)(yun)輥位置(zhi)傳感器(qi)(qi)故(gu)障,更換(huan)完好(hao)的電(dian)暈(yun)(yun)輥位置(zhi)傳感器(qi)(qi)故(gu)障。

2. 電暈(yun)電極不能放電

電(dian)(dian)暈輥速度(du)傳感器位置(zhi)不(bu)(bu)合適(shi)或故(gu)障。電(dian)(dian)暈系(xi)統工作時,為(wei)了保(bao)護(hu)電(dian)(dian)暈輥表面不(bu)(bu)被高壓電(dian)(dian)能(neng)(neng)燒壞,設(she)定了電(dian)(dian)暈輥的最低運(yun)行速度(du)(80m/min),只有檢測到電(dian)(dian)暈輥的運(yun)行線速度(du)高于(yu)此設(she)定值時,電(dian)(dian)暈電(dian)(dian)極才能(neng)(neng)放電(dian)(dian)。可調(diao)整速度(du)傳感器位置(zhi)并鎖緊,更換(huan)有故(gu)障的速度(du)傳感器并調(diao)整好(hao)位置(zhi)并鎖緊。

3. 臭氧(yang)排風流量(liang)低(di)

為了保護人員和設備(bei)不(bu)被臭氧損(sun)害,電(dian)暈(yun)系統(tong)上(shang)有電(dian)暈(yun)抽(chou)排(pai)(pai)(pai)(pai)系統(tong),當檢測(ce)到抽(chou)排(pai)(pai)(pai)(pai)流量低于一定量時,聯鎖(suo)電(dian)暈(yun)電(dian)極放電(dian)。如果臭氧排(pai)(pai)(pai)(pai)風流量低,可(ke)檢查排(pai)(pai)(pai)(pai)風機(ji),確保正常運(yun)行。常見故(gu)(gu)障是抽(chou)風口(kou)或排(pai)(pai)(pai)(pai)風管線堵(du)塞以及排(pai)(pai)(pai)(pai)風管線在流量傳感器位(wei)置前有漏點。排(pai)(pai)(pai)(pai)除流量傳感器故(gu)(gu)障,調整或更(geng)換之。

4. 電暈電極(ji)放電一下(xia)即跳停

(1)電暈(yun)輥表(biao)面(mian)(mian)涂層有(you)損傷。生產過(guo)程中,工藝人(ren)員(yuan)在切(qie)割纏繞在電暈(yun)系統上的薄膜時(shi),稍不(bu)注意就(jiu)會損傷到電暈(yun)輥表(biao)面(mian)(mian)的絕(jue)緣膠面(mian)(mian),一(yi)旦損傷就(jiu)會造成放電時(shi)短路,電暈(yun)電極跳停(ting)。只有(you)停(ting)下來(lai)進行膠面(mian)(mian)修(xiu)補,用專(zhuan)用的電暈(yun)修(xiu)補膠修(xiu)補,修(xiu)補后(hou)用電熱吹(chui)風機(ji)吹(chui)干即(ji)可。

(2)電(dian)暈高(gao)(gao)壓電(dian)纜(lan)(lan)有損傷或電(dian)纜(lan)(lan)接頭部位(wei)有問題。在電(dian)暈工(gong)(gong)作(zuo)環(huan)境下,高(gao)(gao)壓、潮濕(shi)、臭氧(yang)、灰塵(chen)、機械高(gao)(gao)速運行以及人(ren)工(gong)(gong)作(zuo)業(ye)等因素同時存在。應經常(chang)檢查高(gao)(gao)壓電(dian)纜(lan)(lan)和接頭部位(wei)是否正常(chang)并及時更換和維護損傷的電(dian)纜(lan)(lan)及接頭。

(3)電極護板涂層(ceng)(ceng)有損傷(shang),絕(jue)緣(yuan)能力下降(jiang)。電極護板絕(jue)緣(yuan)涂層(ceng)(ceng)因灰(hui)塵(chen)、潮(chao)濕(shi)、臭(chou)氧等(deng)因素會(hui)出現絕(jue)緣(yuan)能力下降(jiang),應(ying)及時檢查、修補或更(geng)換絕(jue)緣(yuan)護板。

(4)電(dian)(dian)暈電(dian)(dian)極部(bu)件灰(hui)塵多。電(dian)(dian)極部(bu)位吸附灰(hui)塵,灰(hui)塵多時會造成放電(dian)(dian)短路,電(dian)(dian)極跳停。應經常清理灰(hui)塵。

(5)電(dian)(dian)(dian)(dian)(dian)暈(yun)電(dian)(dian)(dian)(dian)(dian)極(ji)部件潮濕。因(yin)(yin)電(dian)(dian)(dian)(dian)(dian)暈(yun)輥內部必須通有(you)循(xun)環的冷卻水用(yong)于降溫(wen),因(yin)(yin)此在電(dian)(dian)(dian)(dian)(dian)暈(yun)系統停(ting)(ting)止放電(dian)(dian)(dian)(dian)(dian)時,電(dian)(dian)(dian)(dian)(dian)暈(yun)輥表面(mian)和放電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)極(ji)部位極(ji)易出現潮濕現象(xiang),造成放電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)極(ji)跳(tiao)停(ting)(ting)。因(yin)(yin)此只有(you)經常(chang)清理(li)潮濕,在開工前檢查一(yi)下,如果有(you)嚴重潮濕,用(yong)電(dian)(dian)(dian)(dian)(dian)熱吹風機(ji)吹干(gan)或(huo)用(yong)干(gan)抹布(bu)擦(ca)干(gan)即可。運(yun)行放電(dian)(dian)(dian)(dian)(dian)過(guo)程(cheng)中則(ze)不會(hui)再因(yin)(yin)潮濕造成電(dian)(dian)(dian)(dian)(dian)暈(yun)電(dian)(dian)(dian)(dian)(dian)極(ji)跳(tiao)停(ting)(ting)。

5. 電(dian)(dian)暈正常運行時(shi)運行電(dian)(dian)流變大跳停且投(tou)不上

放(fang)(fang)電(dian)(dian)電(dian)(dian)極(ji)與電(dian)(dian)暈(yun)輥之間的(de)運行間隙變(bian)大(da),要重新調(diao)整放(fang)(fang)電(dian)(dian)電(dian)(dian)極(ji)與電(dian)(dian)暈(yun)輥之間的(de)運行間隙,使(shi)之保持在2.5~3mm。因間隙變(bian)大(da)后,電(dian)(dian)暈(yun)要達到同樣的(de)轟(hong)擊效果就要做更(geng)多的(de)功,因此系統電(dian)(dian)流變(bian)大(da),超出電(dian)(dian)暈(yun)系統承(cheng)受電(dian)(dian)流,造成電(dian)(dian)暈(yun)經常跳(tiao)停。如不及(ji)時正確(que)處理,會(hui)嚴重損(sun)壞設(she)備并使(shi)設(she)備加速老化。需要注意的(de)是:電(dian)(dian)極(ji)和(he)電(dian)(dian)暈(yun)輥的(de)運行間隙應(ying)>2mm,否則,極(ji)易發生放(fang)(fang)電(dian)(dian)電(dian)(dian)極(ji)剮蹭運行中的(de)薄膜(mo)表面和(he)電(dian)(dian)暈(yun)輥,使(shi)之損(sun)傷。

6. 電暈(yun)正常運行(xing)時電極(ji)突然失去(qu)放(fang)電功能

一般是高壓(ya)發(fa)(fa)生器冷卻(que)(que)風(feng)機故障。高壓(ya)發(fa)(fa)生器工作過程(cheng)中自身易產(chan)生高溫,因(yin)此安裝有(you)冷卻(que)(que)風(feng)機確保其(qi)降溫。但工作環境潮濕且(qie)存在灰(hui)(hui)塵,冷卻(que)(que)風(feng)機濾網(wang)經常(chang)(chang)會被灰(hui)(hui)塵堵塞,導(dao)致高壓(ya)發(fa)(fa)生器聯鎖停運,電(dian)極不能放電(dian)。因(yin)此要經常(chang)(chang)清理(li)冷卻(que)(que)風(feng)機濾網(wang),使之暢通。

7. 電暈電極放電時放電火(huo)苗顏(yan)色不(bu)一致

電暈電極放電時,7m左右長的電極火苗中有顏色不一的現象,正常時應全部是藍色火苗。但有時會在局部出現黃色火苗,從而造成電暈處理效果不一,嚴重影響產品質量。產生此類現象的原因有兩個。

(1)電極(ji)部件有局部不干凈,造成局部放電效果受影響。擇機(ji)停下來清(qing)理即可。

(2)放(fang)電(dian)電(dian)極橫(heng)向間隙(xi)不(bu)一(yi)致,造成放(fang)電(dian)效果(guo)不(bu)同。擇機調整放(fang)電(dian)電(dian)極橫(heng)向使之橫(heng)向平(ping)直,達到在工作位時(shi)與電(dian)暈(yun)輥(gun)的橫(heng)向間隙(xi)都保持在2.5~3mm。




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