濕式靜電除塵器

濕式靜電除霧除塵器的工作原理

　　濕(shi)式(shi)(shi)(shi)靜(jing)(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)除(chu)(chu)霧(wu)(wu)(wu)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)由高(gao)壓靜(jing)(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)裝(zhuang)置(zhi)(zhi)和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)除(chu)(chu)霧(wu)(wu)(wu)器(qi)本(ben)體(ti)組成(cheng)，其工(gong)作(zuo)原理與靜(jing)(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)一(yi)樣(yang)，只是沉(chen)淀(dian)(dian)極(ji)采用(yong)(yong)管(guan)(guan)(guan)(guan)(guan)束結構，每個沉(chen)淀(dian)(dian)極(ji)管(guan)(guan)(guan)(guan)(guan)對應(ying)1根陰極(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)線(xian)。工(gong)作(zuo)時利(li)用(yong)(yong)高(gao)壓靜(jing)(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)裝(zhuang)置(zhi)(zhi)對架設(she)在(zai)(zai)濕(shi)式(shi)(shi)(shi)靜(jing)(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)除(chu)(chu)霧(wu)(wu)(wu)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)內的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)線(xian)施加負(fu)的(de)(de)(de)(de)(de)高(gao)壓電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，從而(er)在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)線(xian)和沉(chen)淀(dian)(dian)極(ji)管(guan)(guan)(guan)(guan)(guan)之(zhi)間形(xing)成(cheng)不(bu)均(jun)勻(yun)的(de)(de)(de)(de)(de)高(gao)壓靜(jing)(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)并(bing)且兩個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)是同(tong)軸布置(zhi)(zhi)的(de)(de)(de)(de)(de)，沉(chen)淀(dian)(dian)極(ji)管(guan)(guan)(guan)(guan)(guan)內各點的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)強(qiang)度與該點和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)線(xian)之(zhi)間的(de)(de)(de)(de)(de)距(ju)離(li)成(cheng)反比(bi)。在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)力的(de)(de)(de)(de)(de)作(zuo)用(yong)(yong)下(xia)(xia)(xia)，整個沉(chen)淀(dian)(dian)極(ji)管(guan)(guan)(guan)(guan)(guan)內部(bu)都形(xing)成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)區(qu)，在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)區(qu)內，高(gao)濃度的(de)(de)(de)(de)(de)負(fu)離(li)子(zi)(電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi))從電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)源(yuan)源(yuan)不(bu)斷地向沉(chen)淀(dian)(dian)極(ji)管(guan)(guan)(guan)(guan)(guan)做定向運(yun)動從而(er)形(xing)成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)。當含(han)有水(shui)霧(wu)(wu)(wu)及其他(ta)污染(ran)物(wu)(wu)的(de)(de)(de)(de)(de)煙氣(qi)進入沉(chen)淀(dian)(dian)極(ji)管(guan)(guan)(guan)(guan)(guan)時，由于離(li)子(zi)的(de)(de)(de)(de)(de)碰撞和擴散，水(shui)霧(wu)(wu)(wu)和污染(ran)物(wu)(wu)荷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，然后在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)力的(de)(de)(de)(de)(de)作(zuo)用(yong)(yong)下(xia)(xia)(xia)迅速抵達(da)沉(chen)淀(dian)(dian)極(ji)管(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)內壁(bi)并(bing)同(tong)時釋放出電(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷，在(zai)(zai)沉(chen)淀(dian)(dian)極(ji)管(guan)(guan)(guan)(guan)(guan)內壁(bi)形(xing)成(cheng)液膜(mo)，液膜(mo)在(zai)(zai)重(zhong)力作(zuo)用(yong)(yong)下(xia)(xia)(xia)流(liu)到靜(jing)(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)除(chu)(chu)霧(wu)(wu)(wu)器(qi)下(xia)(xia)(xia)部(bu)的(de)(de)(de)(de)(de)集(ji)液槽(cao)中(zhong)(zhong)集(ji)中(zhong)(zhong)處理，從而(er)達(da)到捕集(ji)煙氣(qi)中(zhong)(zhong)霧(wu)(wu)(wu)滴和其它污染(ran)物(wu)(wu)的(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de)。濕(shi)式(shi)(shi)(shi)靜(jing)(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)除(chu)(chu)霧(wu)(wu)(wu)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)的(de)(de)(de)(de)(de)除(chu)(chu)塵(chen)(chen)(chen)(chen)除(chu)(chu)霧(wu)(wu)(wu)過(guo)程可概括為以下(xia)(xia)(xia)四(si)個階段:氣(qi)體(ti)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)離(li)、塵(chen)(chen)(chen)(chen)霧(wu)(wu)(wu)等粒(li)子(zi)的(de)(de)(de)(de)(de)荷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)、荷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)塵(chen)(chen)(chen)(chen)霧(wu)(wu)(wu)粒(li)子(zi)的(de)(de)(de)(de)(de)沉(chen)集(ji)、集(ji)塵(chen)(chen)(chen)(chen)的(de)(de)(de)(de)(de)清理。與靜(jing)(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)相比(bi)，濕(shi)式(shi)(shi)(shi)靜(jing)(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)除(chu)(chu)霧(wu)(wu)(wu)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)具有以下(xia)(xia)(xia)4項優(you)點:

(1) 由于(yu)粉塵與水相互(hu)交融形成的霧滴具有良好(hao)的導電(dian)性，因(yin)此，能(neng)夠(gou)收集(ji)靜電(dian)除塵器不能(neng)收集(ji)的黏性、高比電(dian)阻的粉塵。

(2) 沒有振打裝置(zhi)而采用(yong)單管(guan)單沖(chong)裝置(zhi)，不存在(zai)二次飛揚問題，也(ye)不存在(zai)傳動(dong)裝置(zhi)容易出故障的問題。

(3) 能(neng)提供(gong)幾倍(bei)于(yu)靜電(dian)(dian)除(chu)(chu)塵器的(de)電(dian)(dian)暈功(gong)率，具有很(hen)高的(de)除(chu)(chu)霧(wu)除(chu)(chu)塵效率，尤其對于(yu)細小(xiao)的(de)粉(fen)塵顆(ke)粒、霧(wu)滴、氣溶膠(jiao)、金屬(shu)顆(ke)粒、酸霧(wu)等(deng)具有很(hen)強的(de)捕(bu)集能(neng)力(li)。電(dian)(dian)極(ji)(ji)之間的(de)電(dian)(dian)場Ex為半(ban)徑方向，其值為  式中:  U:施(shi)加在(zai)電(dian)(dian)極(ji)(ji)間的(de)電(dian)(dian)壓；R:外(wai)部電(dian)(dian)極(ji)(ji)的(de)半(ban)徑；r:內部電(dian)(dian)極(ji)(ji)的(de)半(ban)徑；X:空間任一點離(li)軸線的(de)距離(li)。

(4) 在采用微機控制電(dian)(dian)源(yuan)和新型放電(dian)(dian)電(dian)(dian)極的情況(kuang)下，煙氣(qi)中的粉塵顆粒、霧滴(di)、氣(qi)溶膠、金屬(shu)顆粒、酸霧等在電(dian)(dian)場的驅進速(su)度可以(yi)達(da)(da)到0.1m/s以(yi)上，有的高達(da)(da)0.19m/s。(本公司生產的新型放電(dian)(dian)電(dian)(dian)極經實踐使用測(ce)得二次電(dian)(dian)暈電(dian)(dian)流大于0.6mA/m。)

　　特別值得注意的(de)是(shi)(shi)寬(kuan)極距的(de)濕式靜電(dian)除(chu)霧除(chu)塵(chen)器，在提高除(chu)塵(chen)除(chu)霧效率，降低(di)除(chu)塵(chen)除(chu)霧成本方(fang)面有很大的(de)優勢，同時也是(shi)(shi)解(jie)決(jue)電(dian)暈閉(bi)塞的(de)方(fang)法之一(yi)，是(shi)(shi)目前濕式靜電(dian)除(chu)霧除(chu)塵(chen)器發展的(de)一(yi)個新趨(qu)勢。

　　總之(zhi)，濕式(shi)靜(jing)電除霧除塵(chen)器(qi)特點是除霧除塵(chen)效率高，高可(ke)達到99.99%,能(neng)捕集(ji)1um左右(you)的粒子，且壓(ya)力損失小，一般為0.2～0.5kPa,運行穩定。由于濕式(shi)靜(jing)電除霧除塵(chen)器(qi)里有液(ye)體介質存(cun)在且溫(wen)度在露點以下，因(yin)此(ci)選(xuan)材時必須考慮介質的耐(nai)(nai)溫(wen)耐(nai)(nai)腐蝕(shi)性。

電暈放電簡介

　　通常在(zai)(zai)(zai)自(zi)(zi)(zi)由(you)(you)空間(jian)中(zhong)，由(you)(you)于宇宙輻射每立方厘(li)米(mi)空氣(qi)(qi)(qi)中(zhong)大(da)(da)(da)(da)約有(you)1000個自(zi)(zi)(zi)由(you)(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)存(cun)在(zai)(zai)(zai)，這(zhe)些自(zi)(zi)(zi)由(you)(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)在(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)的(de)(de)(de)(de)作用(yong)(yong)下會受到(dao)(dao)加速，撞擊(ji)氣(qi)(qi)(qi)體(ti)(ti)原(yuan)子(zi)(zi)(zi)或(huo)(huo)分子(zi)(zi)(zi)。自(zi)(zi)(zi)由(you)(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)的(de)(de)(de)(de)加速程(cheng)度(du)隨(sui)(sui)著電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)強(qiang)度(du)的(de)(de)(de)(de)增大(da)(da)(da)(da)而增大(da)(da)(da)(da)，自(zi)(zi)(zi)由(you)(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)在(zai)(zai)(zai)撞擊(ji)氣(qi)(qi)(qi)體(ti)(ti)原(yuan)子(zi)(zi)(zi)或(huo)(huo)分子(zi)(zi)(zi)前(qian)積(ji)(ji)累的(de)(de)(de)(de)能(neng)量(liang)隨(sui)(sui)之增大(da)(da)(da)(da)。當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)(chang)強(qiang)度(du)達到(dao)(dao)氣(qi)(qi)(qi)體(ti)(ti)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)離(li)(li)的(de)(de)(de)(de)臨界(jie)(jie)值時(shi)(shi)(shi)，自(zi)(zi)(zi)由(you)(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)在(zai)(zai)(zai)撞擊(ji)前(qian)積(ji)(ji)累的(de)(de)(de)(de)能(neng)量(liang)，將(jiang)足(zu)以(yi)從氣(qi)(qi)(qi)體(ti)(ti)原(yuan)子(zi)(zi)(zi)或(huo)(huo)分子(zi)(zi)(zi)撞出(chu)一(yi)個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)。此(ci)時(shi)(shi)(shi)在(zai)(zai)(zai)極(ji)(ji)(ji)(ji)(ji)(ji)線(xian)附(fu)近(jin)一(yi)個小范圍(wei)內(nei)的(de)(de)(de)(de)空氣(qi)(qi)(qi)就開始(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)離(li)(li)，出(chu)現(xian)(xian)了氣(qi)(qi)(qi)體(ti)(ti)的(de)(de)(de)(de)非(fei)自(zi)(zi)(zi)持(chi)放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)。繼續(xu)升高電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓，氣(qi)(qi)(qi)體(ti)(ti)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)離(li)(li)將(jiang)加劇形(xing)成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)崩，產生(sheng)大(da)(da)(da)(da)量(liang)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)和(he)離(li)(li)子(zi)(zi)(zi)，并伴隨(sui)(sui)著發出(chu)淡蘭色的(de)(de)(de)(de)輝光(guang)(guang)和(he)咝咝聲。放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)也就由(you)(you)非(fei)自(zi)(zi)(zi)持(chi)轉(zhuan)變(bian)為(wei)(wei)自(zi)(zi)(zi)持(chi)放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，即(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)。氣(qi)(qi)(qi)體(ti)(ti)產生(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)離(li)(li)和(he)發光(guang)(guang)的(de)(de)(de)(de)區(qu)域稱為(wei)(wei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)區(qu)，在(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)區(qu)外(wai)(wai)面的(de)(de)(de)(de)區(qu)域稱為(wei)(wei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)外(wai)(wai)區(qu)。在(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)區(qu)里(li)，離(li)(li)子(zi)(zi)(zi)的(de)(de)(de)(de)產生(sheng)主要靠(kao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)在(zai)(zai)(zai)強(qiang)場(chang)(chang)作用(yong)(yong)下形(xing)成(cheng)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)崩。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)區(qu)中(zhong)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)極(ji)(ji)(ji)(ji)(ji)(ji)極(ji)(ji)(ji)(ji)(ji)(ji)性相反的(de)(de)(de)(de)離(li)(li)子(zi)(zi)(zi)被(bei)吸引到(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)極(ji)(ji)(ji)(ji)(ji)(ji)，和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)極(ji)(ji)(ji)(ji)(ji)(ji)極(ji)(ji)(ji)(ji)(ji)(ji)性相同的(de)(de)(de)(de)離(li)(li)子(zi)(zi)(zi)則(ze)被(bei)推向(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)外(wai)(wai)區(qu)。當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)極(ji)(ji)(ji)(ji)(ji)(ji)為(wei)(wei)正(zheng)(zheng)(zheng)極(ji)(ji)(ji)(ji)(ji)(ji)時(shi)(shi)(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)崩是(shi)從電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)邊界(jie)(jie)開始(shi)向(xiang)極(ji)(ji)(ji)(ji)(ji)(ji)線(xian)發展(zhan)的(de)(de)(de)(de)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)崩頭部(bu)的(de)(de)(de)(de)自(zi)(zi)(zi)由(you)(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)將(jiang)很(hen)快(kuai)(kuai)進入(ru)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)極(ji)(ji)(ji)(ji)(ji)(ji)，留在(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)崩后部(bu)的(de)(de)(de)(de)遷移(yi)率低的(de)(de)(de)(de)正(zheng)(zheng)(zheng)離(li)(li)子(zi)(zi)(zi)可(ke)以(yi)起到(dao)(dao)擴(kuo)大(da)(da)(da)(da)強(qiang)場(chang)(chang)區(qu)的(de)(de)(de)(de)作用(yong)(yong)。當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)極(ji)(ji)(ji)(ji)(ji)(ji)為(wei)(wei)負(fu)(fu)(fu)極(ji)(ji)(ji)(ji)(ji)(ji)時(shi)(shi)(shi)，由(you)(you)于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)崩是(shi)從極(ji)(ji)(ji)(ji)(ji)(ji)線(xian)表面開始(shi)向(xiang)外(wai)(wai)發展(zhan)的(de)(de)(de)(de)，靠(kao)近(jin)極(ji)(ji)(ji)(ji)(ji)(ji)線(xian)的(de)(de)(de)(de)是(shi)遷移(yi)率低的(de)(de)(de)(de)正(zheng)(zheng)(zheng)離(li)(li)子(zi)(zi)(zi)，它可(ke)以(yi)把強(qiang)場(chang)(chang)區(qu)限(xian)(xian)制(zhi)在(zai)(zai)(zai)極(ji)(ji)(ji)(ji)(ji)(ji)線(xian)附(fu)近(jin)的(de)(de)(de)(de)較(jiao)小范圍(wei)內(nei)。所以(yi)正(zheng)(zheng)(zheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)區(qu)要比負(fu)(fu)(fu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)的(de)(de)(de)(de)大(da)(da)(da)(da)。在(zai)(zai)(zai)負(fu)(fu)(fu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)時(shi)(shi)(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)區(qu)可(ke)達10～20mm；在(zai)(zai)(zai)正(zheng)(zheng)(zheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)時(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)區(qu)可(ke)達100mm。根據(ju)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源容(rong)量(liang)的(de)(de)(de)(de)大(da)(da)(da)(da)小，擊(ji)穿(chuan)(chuan)可(ke)以(yi)表現(xian)(xian)為(wei)(wei)弧(hu)(hu)光(guang)(guang)放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)或(huo)(huo)火花(hua)放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)形(xing)式。當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源容(rong)量(liang)足(zu)夠大(da)(da)(da)(da)時(shi)(shi)(shi)，氣(qi)(qi)(qi)體(ti)(ti)擊(ji)穿(chuan)(chuan)后會有(you)很(hen)大(da)(da)(da)(da)的(de)(de)(de)(de)放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)流(liu)過(guo)，在(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)(ji)(ji)間(jian)形(xing)成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)弧(hu)(hu)稱為(wei)(wei)弧(hu)(hu)光(guang)(guang)放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，如同電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)弧(hu)(hu)焊接時(shi)(shi)(shi)出(chu)現(xian)(xian)的(de)(de)(de)(de)情形(xing)一(yi)樣，可(ke)以(yi)燒(shao)壞電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)(ji)(ji)或(huo)(huo)供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)設備。因(yin)(yin)此(ci)濕式靜電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)除霧除塵器運(yun)行時(shi)(shi)(shi)應當盡量(liang)避(bi)免出(chu)現(xian)(xian)弧(hu)(hu)光(guang)(guang)放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)。如果電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源容(rong)量(liang)較(jiao)小，則(ze)氣(qi)(qi)(qi)體(ti)(ti)擊(ji)穿(chuan)(chuan)以(yi)后，放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)會受到(dao)(dao)限(xian)(xian)制(zhi)，使之不足(zu)以(yi)形(xing)成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)弧(hu)(hu)，這(zhe)時(shi)(shi)(shi)的(de)(de)(de)(de)放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)就會停留在(zai)(zai)(zai)火花(hua)放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)階段。火花(hua)放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)是(shi)一(yi)束明亮曲折常常又是(shi)分叉的(de)(de)(de)(de)細(xi)絲(si)，這(zhe)些細(xi)絲(si)很(hen)快(kuai)(kuai)地穿(chuan)(chuan)過(guo)放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)間(jian)隙，又很(hen)快(kuai)(kuai)地熄滅(mie)，熄滅(mie)后隨(sui)(sui)即(ji)再度(du)產生(sheng)。火花(hua)放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)比弧(hu)(hu)光(guang)(guang)放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)要小得多(duo)，一(yi)般不會損壞電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)(ji)(ji)，總(zong)之濕式靜電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)除霧除塵器運(yun)行中(zhong)要采取措施(shi)控制(zhi)把氣(qi)(qi)(qi)體(ti)(ti)擊(ji)穿(chuan)(chuan)，若把氣(qi)(qi)(qi)體(ti)(ti)擊(ji)穿(chuan)(chuan)后的(de)(de)(de)(de)放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)要限(xian)(xian)制(zhi)在(zai)(zai)(zai)火花(hua)放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)范圍(wei)內(nei)。在(zai)(zai)(zai)同一(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓下負(fu)(fu)(fu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)就要比正(zheng)(zheng)(zheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)的(de)(de)(de)(de)大(da)(da)(da)(da)，同時(shi)(shi)(shi)正(zheng)(zheng)(zheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)火花(hua)放(fang)(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)通道的(de)(de)(de)(de)發展(zhan)比負(fu)(fu)(fu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)容(rong)易(yi)得多(duo)，這(zhe)樣就容(rong)易(yi)發生(sheng)擊(ji)穿(chuan)(chuan)。即(ji)正(zheng)(zheng)(zheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)的(de)(de)(de)(de)臨界(jie)(jie)擊(ji)穿(chuan)(chuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓也比負(fu)(fu)(fu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)時(shi)(shi)(shi)的(de)(de)(de)(de)低，因(yin)(yin)此(ci)濕式靜電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)除霧除塵器都采用(yong)(yong)負(fu)(fu)(fu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)(yun)。

電暈閉塞

　　注意當煙(yan)氣(qi)(qi)中(zhong)含塵(chen)、酸霧濃度(du)越高則(ze)二次電(dian)(dian)流越小。當煙(yan)氣(qi)(qi)含塵(chen)霧濃度(du)高到某(mou)種(zhong)程度(du)時，電(dian)(dian)場空間(jian)的(de)(de)(de)負離子(zi)數量已不能(neng)滿足大量塵(chen)霧粒子(zi)所(suo)需(xu)，因此塵(chen)霧所(suo)得的(de)(de)(de)能(neng)量很(hen)低(di)，(表現為(wei)它的(de)(de)(de)驅進速度(du)很(hen)低(di))捕(bu)集效率顯著降低(di)，就(jiu)像(xiang)電(dian)(dian)場被屏蔽(bi)，故稱電(dian)(dian)暈閉塞。解決辦法是采用(yong)寬極(ji)距的(de)(de)(de)設計以(yi)提高電(dian)(dian)壓、提高電(dian)(dian)場強度(du)；采用(yong)新型的(de)(de)(de)放電(dian)(dian)電(dian)(dian)極(ji)以(yi)及(ji)生產操作中(zhong)采取降低(di)煙(yan)氣(qi)(qi)含塵(chen)霧的(de)(de)(de)措施等。

電(dian)暈電(dian)極(ji)肥大(da):氣(qi)體電(dian)離產生的正(zheng)離子被(bei)吸引(yin)回電(dian)暈電(dian)極(ji)的途(tu)中(zhong)，煙(yan)氣(qi)中(zhong)有少量塵粒被(bei)它轟擊而荷正(zheng)電(dian)，便向負極(ji)性的電(dian)暈電(dian)極(ji)運動并沉(chen)積在極(ji)線上而形(xing)成。解(jie)決辦法是提高(gao)運行電(dian)壓(ya)和沖洗次數。