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鍋爐焚燒器的喉部擴張角為12b,zheyishidiandetiaoxuantaixiao,suiranxuanyongxiaodekuozhangjiaonenggoushixuanliuqiangduzengda,jiandangouchengyiguanbidehuiliuqu,danguoxiaodekuozhangjiaozengdalehuiliuqudemianji,jiachanglehuiliuqudechangdu,shihuiliuqugengjiejinyufenshaoqi,youzuipenchudewuhuayoudiguozaojinruhuiliuqu,yingaowenqueyangerbeifenjiechengtanhei,shaobufentanheibeihuiliuqudegaowenqitidaidaofenshaoqidemouxiebujianbiaomianchixufenshao,zaochengzhexiebujiandesunhuai。jingguoyishangpouxikezhi,houbukuozhangjiaoguoxiao,jiakuailefenshaoqidesunhuai。
焚fen燒shao器qi的de改gai善shan經jing過guo對dui原yuan焚fen燒shao器qi損sun壞huai原yuan因yin剖pou析xi,吸xi收shou進jin口kou鍋guo爐lu焚fen燒shao器qi的de優you點dian,規gui劃hua了le焚fen燒shao器qi,與yu原yuan焚fen燒shao器qi比bi較jiao,它ta作zuo了le以yi下xia幾ji方fang麵mian的de改gai善shan。加jia大da穩wen焰yan器qi直zhi徑jing撤che銷xiao一yi次ci風feng套tao筒tong,加jia大da穩wen焰yan器qi的de直zhi徑jing,穩wen焰yan器qi的de直zhi徑jing由you原yuan250mm加大到370mm,zheyangbudanjiadaleyicifengyuercifengdepeibi,weichuqifenshaogonggeizugoudeyangqi,gengzhongyaodeshitashiyicifengyuercifengdepeibiweiyihengdingzhi,buhuisuifuhedegaidongergaidong,youliyucaozuo。
一yi起qi,撤che銷xiao一yi次ci風feng套tao筒tong,減jian少shao了le一yi次ci風feng與yu二er次ci風feng的de阻zu力li,提ti高gao了le旋xuan轉zhuan氣qi流liu的de旋xuan轉zhuan強qiang度du,有you利li於yu構gou成cheng安an穩wen回hui流liu區qu,便bian於yu安an穩wen焚fen燒shao。減jian小xiao穩wen焰yan器qi旋xuan流liu角jiao參can考kao原yuan2台開工鍋爐穩焰器旋流視點,由35b減小到20b左右,葉輪葉片數量由10片增加到15片(pian),能(neng)夠(gou)下(xia)降(jiang)旋(xuan)流(liu)強(qiang)度(du),增(zeng)大(da)一(yi)次(ci)風(feng)的(de)軸(zhou)向(xiang)速(su)度(du),使(shi)著(zhe)火(huo)中(zhong)心(xin)和(he)回(hui)流(liu)區(qu)外(wai)移(yi),減(jian)小(xiao)對(dui)焚(fen)燒(shao)器(qi)的(de)損(sun)壞(huai)。增(zeng)大(da)焚(fen)燒(shao)器(qi)喉(hou)部(bu)擴(kuo)張(zhang)角(jiao)增(zeng)大(da)了(le)焚(fen)燒(shao)器(qi)喉(hou)部(bu)擴(kuo)張(zhang)角(jiao),由(you)原(yuan)12b增大到20b,使得旋流強度削弱,回流區麵積減小,回流區外移,減小了對焚燒器的損壞。
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