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燃煤電廠鍋爐靜電除塵器維修、改造技巧

編輯:除塵器廠家 來源:techtt.cn 2023-04-27
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靜電除塵器維修、改造項目(mu)完工后(hou)排放濃度小于20毫克以(yi)下。對于靜電(dian)除塵器改造的(de)技術我公司已經(jing)非(fei)常嫻熟(shu),可以(yi)實地考(kao)(kao)察(cha)我公司的(de)成功案(an)例及業績,看貴公司的(de)的(de)采購(gou)需(xu)求(qiu),我公司是否能達到(dao)要求(qiu),歡迎前來考(kao)(kao)察(cha)!

盛景鍋爐靜電(dian)除塵(chen)器維修改造優勢特點(dian):

1.配套使用國內的高頻電源,能電除塵器設備運行二次電壓達到65KV以上,電流穩定。 

2.有一套檢修(xiu)電除塵器的工藝與檢修(xiu)用設備工具(ju)等。 

3.有一支長期從事電(dian)除塵器設(she)備安(an)裝、維修、改造的(de)隊伍,能在規定的(de)工(gong)期內保(bao)量完成改造工(gong)作。 

4.各類各種規(gui)格的(de)電除塵器設備(bei)在不(bu)動基(ji)礎,不(bu)改外形的(de)前提下,經本公司檢修,排放達標(≤20mg/Nm3)。

鍋爐靜電除塵器維修方法:

一(yi)(yi)(yi)、在(zai)(zai)煙箱內設計(ji)預荷(he)電(dian)(dian)(dian)(dian)裝置。煙箱內預荷(he)電(dian)(dian)(dian)(dian)裝置為我(wo)公司的(de)優勢產品之一(yi)(yi)(yi),主要(yao)針對一(yi)(yi)(yi)電(dian)(dian)(dian)(dian)場前一(yi)(yi)(yi)、二塊極(ji)板不能被充分利(li)用而采(cai)取的(de)增(zeng)效(xiao)(xiao)措施,即在(zai)(zai)電(dian)(dian)(dian)(dian)場煙箱靠近電(dian)(dian)(dian)(dian)場的(de)一(yi)(yi)(yi)層孔板前加設一(yi)(yi)(yi)排陰極(ji)線,對孔板所在(zai)(zai)的(de)平面(mian)放電(dian)(dian)(dian)(dian),使粉塵(chen)預荷(he)電(dian)(dian)(dian)(dian),這樣可(ke)充分利(li)用一(yi)(yi)(yi)電(dian)(dian)(dian)(dian)場的(de)前一(yi)(yi)(yi)、二塊陽極(ji)板的(de)收塵(chen)面(mian),而且孔板也具有提(ti)器收塵(chen)效(xiao)(xiao)果的(de)功效(xiao)(xiao)。

二、在靜(jing)電(dian)(dian)除(chu)塵器頂(ding)(ding)部(bu)設計擋(dang)風裝置,減(jian)少(shao)煙氣(qi)的(de)逃(tao)逸(yi)。為了阻止(zhi)電(dian)(dian)除(chu)塵器內部(bu)煙氣(qi)的(de)直(zhi)接逃(tao)逸(yi),在電(dian)(dian)除(chu)塵器的(de)頂(ding)(ding)部(bu)合(he)理設計擋(dang)風板(ban),使煙氣(qi)全部(bu)經過電(dian)(dian)除(chu)塵器放(fang)電(dian)(dian)區,避(bi)免的(de)含(han)塵煙氣(qi)逃(tao)逸(yi)。

三(san)、增(zeng)(zeng)設芒刺片,放電(dian)盲區(qu)。為了原電(dian)除(chu)塵(chen)器的放電(dian)盲區(qu),可在陰極框(kuang)架上(shang)增(zeng)(zeng)設芒刺片,增(zeng)(zeng)加放電(dian)點(dian),使(shi)經過電(dian)場(chang)的煙氣*被(bei)電(dian)離,從而達到提高電(dian)除(chu)塵(chen)器除(chu)塵(chen)效(xiao)率的目的。

四(si)、采用高頻(pin)(pin)電(dian)(dian)(dian)(dian)(dian)源替換普通電(dian)(dian)(dian)(dian)(dian)源。高頻(pin)(pin)電(dian)(dian)(dian)(dian)(dian)源近乎純直(zhi)流,其供電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)壓(ya)就是火花電(dian)(dian)(dian)(dian)(dian)壓(ya),放電(dian)(dian)(dian)(dian)(dian),粒子荷電(dian)(dian)(dian)(dian)(dian)量大,故一般(ban)一、二電(dian)(dian)(dian)(dian)(dian)場(chang)(chang)可(ke)以采用高頻(pin)(pin)電(dian)(dian)(dian)(dian)(dian)源。普通單相電(dian)(dian)(dian)(dian)(dian)源在相同的電(dian)(dian)(dian)(dian)(dian)壓(ya)放電(dian)(dian)(dian)(dian)(dian)點,電(dian)(dian)(dian)(dian)(dian)源峰值(zhi)電(dian)(dian)(dian)(dian)(dian)壓(ya)高,放電(dian)(dian)(dian)(dian)(dian)強烈,尤其是末電(dian)(dian)(dian)(dian)(dian)場(chang)(chang)微(wei)(wei)細粉(fen)塵(chen)多,更利于(yu)微(wei)(wei)細粉(fen)塵(chen)的電(dian)(dian)(dian)(dian)(dian)離,故三(san)、四(si)電(dian)(dian)(dian)(dian)(dian)場(chang)(chang)仍采用普通電(dian)(dian)(dian)(dian)(dian)源,這樣不(bu)僅可(ke)以節(jie)約成本,又能提高電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)器整(zheng)體放電(dian)(dian)(dian)(dian)(dian)性(xing)能。

五、改進電除塵器出口(kou)(kou)煙箱的(de)(de)設計,利用斜(xie)氣流技術優化粉(fen)塵的(de)(de)沉(chen)降效果。改進型出口(kou)(kou)封(feng)(feng)頭(tou)將上下(xia)封(feng)(feng)板(ban)設計成上下(xia)不對稱(cheng)型,下(xia)側(ce)(ce)(ce)的(de)(de)封(feng)(feng)板(ban)傾斜(xie)度(du)加大,這樣煙氣流速在末電場內(nei)(nei)呈(cheng)上大下(xia)小(xiao),即末電場和出口(kou)(kou)煙箱內(nei)(nei)下(xia)側(ce)(ce)(ce)氣流流速較低,上部流速較高,有(you)利于煙氣中灰(hui)(hui)塵的(de)(de)沉(chen)降。下(xia)側(ce)(ce)(ce)封(feng)(feng)板(ban)傾斜(xie)度(du)加大,也有(you)利于沉(chen)積在出口(kou)(kou)煙箱下(xia)側(ce)(ce)(ce)板(ban)上的(de)(de)灰(hui)(hui)塵落入灰(hui)(hui)斗,減少末電場振打清灰(hui)(hui)造(zao)成的(de)(de)二次揚塵。

六(liu)、使(shi)(shi)用(yong)煙氣(qi)(qi)調質技(ji)(ji)術,提高電(dian)除塵(chen)除塵(chen)效(xiao)率。對(dui)于原先使(shi)(shi)用(yong)標(biao)準煤能(neng)達(da)標(biao)排放的(de)電(dian)除塵(chen)器現使(shi)(shi)用(yong)劣質低硫煤將無法(fa)達(da)到(dao)(dao)理想(xiang)運行效(xiao)率,此時(shi)提高電(dian)除塵(chen)器除塵(chen)性能(neng)具有成本效(xiao)益的(de)解(jie)決方法(fa)就(jiu)是(shi)使(shi)(shi)用(yong)“煙氣(qi)(qi)調質技(ji)(ji)術”。我公司(si)已成功與(yu)美國燃(ran)料技(ji)(ji)術公司(si)合作(zuo),有著全(quan)套的(de)煙氣(qi)(qi)調質技(ji)(ji)術,用(yong)理想(xiang)的(de)設計結合自(zi)控,以組裝好的(de)集裝箱式系統,提供提高電(dian)除塵(chen)器集灰(hui)性能(neng)理想(xiang)性價(jia)比(bi)的(de)解(jie)決方法(fa)和服務,解(jie)決電(dian)除塵(chen)器因(yin)煙氣(qi)(qi)性質變化無法(fa)達(da)到(dao)(dao)性能(neng)的(de)根本問題。



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