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锅炉布袋式除尘器在线监测自动滤袋保护措施

发布日期:2018-12-13 16:17    关键字: 锅炉除尘滤袋

GUOLUBUDAISHICHUCHENQIZAIXIANJIANCEZIDONGLVDAIBAOHUCUOSHIDEYINGYONG,JIANGDILECHUCHENQIBENTIZULI,BINGDUICHUCHENQIHEXINBUJIANLVDAIQIDAOHENHAODEBAOHUCUOSHI。WOGONGSISHEJIDEGUOLUBUDAISHICHUCHENQIWEIRAOSHANGSHUMUDECAIYONGLEYIXILIEDEBAOHUJISHU:

锅炉除尘器

(1) BUDAICHUCHENQIDEZULIKONGZHI

BUDAICHUCHENQIDEZULIFENWEILIANGBUFEN。BENSHEBEIDESHEJIZULIWEI﹤1200Pa。

YIBUFENSHICHUCHENSHEBEIDEGUYOUZULI(JIYUANSHIZULI),ZHEISHIYOUSHEBEIDEGEGEYANQILIUTONGTUJINGZAOCHENGDE。

布袋除尘器进出风方式、进风管道各部位的烟气流速选择是否妥当;袋式除尘器各仓室进风的均匀度;导流系统设计是否合理;进风口距离布袋底部的水平高度导致的含尘气体稳流空间是否足够;除尘滤袋直径和布袋间距决定的滤袋间烟气抬升速度的合理性;出口管道风速的合理选定等都将影响除尘器的固有阻力值。

CONGYIWANGWOGONGSISHEJISHENGCHANDECHUCHENQIKANLAI,SHEBEIDEYUANSHIZULIDOUZAI350PaZUOYOU。

DIERBUFENSHISHEBEIDEYUNXINGZULI。SHEBEIDEYUNXINGZULISHIYOUCHUCHENQIZAIYUNXINGGUOCHENGZHONGLVDAIBIAOMIANXINGCHENGDEGUAHUICENGDEHOUDUDAOZHIDEYIGEXUNHUANZHI。YIBANWOMENDUIZHEIGEZHIDESHANGXIANSHEDINGZAI1000~1200Pa,ZAISHEBEIDADAOZHEIGEZULIZHISHI,XITONGQIDONGQINGHUI,JIANGSHEBEIZULIHUIFUDAOYUANSHIZULI,JINRUXIAYIGEXUNHUAN。ZHEIGEXUNHUANSHIJIANDEZHANGDUAN,QUJUEYUYANQIHANCHENNONGDU、LVLIAODEPINZHONGGUIGEDENG。

CONGWOGONGSISHEJISHENGCHANDEYIJINGTOUYUNDEGUOLUBUDAICHUCHENQIDEYUNXINGJILUXIANSHI,GAIXUNHUANSHIJIANJUNZAI60~120minZHIJIAN。

(2) FANGZHIHUDAIDECUOSHI

HUDAISHICHUCHUCHENQIJIEGOUSHEJIYUANYINZHIWAIDEYINQICHUCHENQIZULISHENGGAODEZHUYAOYUANYINZHIYI。HUDAIDEZHUYAOYUANYINSHISHUIHUOYOUZAILVDAIBUFENCENGDENIANJIE,WEILEBIMIANZAOCHENGHUDAI,TOUYUNZHICHUDUICHUCHENQIJINXINGYUPENTUHOU,CHUCHENQIPLCJIANGKONGZHICHUCHENQIZAIYANQIKUAYUESHUIWUDIANQIANYUNXINGPANGLU;DIANLUTOUYOUSHIYUNXINGPANGLU;YUNXINGZHIZHONGYANWENGUODI、TOUYOUSHIKAIQIPANGLU;GUOLUDALIANGBAOGUANSHIKAIQIPANGLUTONGDAO。ZAICHUCHENQITINGYUNHOUYAOCHEDIQINGHUI。YISHANGCUOSHIYOUXIAODIFANGZHILEHUDAIXIANXIANGDEFASHENG。

(3) PANGLUXITONG

PANGLUXITONGZHEIGEGUOLUBUDAICHUCHENQIBAOHUXITONGSHIBAOZHENGCHUCHENQIANQUANDEZHONGYAOCUOSHI。NENGTONGGUOKONGZHIXITONGJISHIBAOJING。

YANQIWENDUYICHANG:ZAICHUCHENQIDEJINFENGZONGGUANSHANGANZHUANGLEWENDUJIANCEZHUANGZHI,JIEZHUTAJIANCEDAODEDIYUHUOGAOYUSHEDINGZHIDEYANQIWENDU,TONGGUOPLCZIDONGDAKAIPANGLU,FANGZHIDIWENZHUANGTAIXIADEJIELUDUSAILVDAIHUOGAOWENYANQISHAOHUILVDAI。

锅炉爆管:如果是少量的爆管,少量的水分对大量的高温烟气影响不大,滤袋表面原有的灰层可以包裹,所以对布袋除尘器没有很大的影响。如果是大量的爆管,水量和水压变化较大,锅炉系统参数的陡变,必将导致系统作出相应的反应并同时提供给除尘系统相应的信号,锅炉也会按照锅炉的运行规程采取相关的保护措施:除尘器PLC接获锅炉爆管信号时,PLC控制打开旁路系统;另外,锅炉爆管将导致烟气温度的上升,此时进风总管中安装的温度检测装置也将起到开启旁路系统的作用,双重的保护将确保锅炉爆管时的除尘器的安全。
锅炉PPS布袋

(4) LVDAIJIANLOUZHUANGZHI

ZUOWEIBUDAICHUCHENQIBAOHUXITONGDEYIGEZHONGYAOZUCHENG,LVDAIJIANLOUZHUANGZHIZAICHUCHENQIDEYUNXINGGUOCHENGZHONGBUKEHUOQUE,JIEZHULVDAIJIANLOUZHUANGZHI,CHUCHENQINENGSUISHIJIANSHICANGSHIYALI、JIANCHALVDAISHOUSUNQINGKUANG,YIDANYOULVDAIPOSUN,JISHIBAOJINGTONGZHIJIANXIU,BAOZHENGCHUCHENQIDEZHENGCHANGYUNXING。

A. WEISHIHEGUOQING、JIANGDIZAOJIA,TONGSHIBAOZHENGCHUCHENQIDESHIYONGXIAOGUO,WOMENDUICHUCHENQIJIANLOUZHUANGZHIZUOLEZHUANMENDESHEJIBINGZAIYIWANGDEGONGCHENGZHONGYUNYONG,QUDELEJIAOWEIMANYIDEJIEGUO。

B. 本案除尘器滤袋检漏装置主要由差压计(每仓一个)、差压变送器构成。通常,除尘器性能的O佳显示就是除尘系统的压力降。特别是除尘器单个过滤室的压力降是滤袋状况的O佳显示,压力降的突然升高或降低即意味着除尘布袋的堵塞、泄漏、阀不动作、清灰系统失灵或灰斗积灰过多。

GUODIDEYALIJIANGBIAOMINGXITONGYOUXIELOU(LVDAIPOSUN)。

GUOGAODEYALIJIANGBIAOMINGDEYUANYINYOUHENDUO:LVLIAODUSAI、QINGHUIXITONGGUZHANG、JINCHUFENGFAGUZHANG、HUIDOUJIHUIGUODUO、YACHABIAODEGUANLUDUSAI。

ZAIPLCHUODECHAYABIANSONGQISONGLAIDEBUZHENGCHANGXINHAOHOU,JIANGGUANBIGUZHANGCANGSHI,TONGSHIZAIZHUKONGJUSHANGXIANSHIBINGSHENGGUANGBAOJING。

(5) ZAIXIANJIANCE(JIANCE)SHEBEI

WEILEGENGHAODEBAOHUCHUCHENQIBINGSHIXIANCHUCHENQIDEZAIXIANJIANCEHEJIANKONG,WOMENWEICHUCHENXITONGPEIZHILEYIXILIEDEZAIXIANJIANCESHEBEI。

WENDUJIANCEYI:YONGYUYANQIWENDUDEZAIXIANJIANCE,ZAIZHIBIAOCHAOCHUSHEDINGZHISHIBAOJINGBINGTONGGUOPLCKONGZHIQIDONGCHUCHENQIBAOHUZHUANGZHI;

CHAYAJIJIBIANSONGQI:TONGGUOPLCKONGZHICHUCHENQIDEQINGHUIXITONGGONGZUOBINGTONGGUOSHEBEIGONGZUOZULIDEXUNHUANSHIJIANHEMEICIQINGHUIHOUCHUCHENQIZHENGTICHAYAQINGKUANGFENXIQINGHUIXIAOGUOHELVLIAOSHOUMINGZHUANGKUANG;

LIAOWEIJI:TONGGUOSHEZHIZAICHUCHENQIHUIDOUSHANGDEGAOLIAOWEIJIXIANSHIHUIDOUZHONGDECUNHUIQINGKUANGBINGTONGGUOPLCZHIHUIXIEHUIXITONGHESHUHUIXITONGDEGONGZUO。

YIXILIEBAOHUJISHUDESHIYONGBAOZHENGLECHUCHENQIZAIGUIFANGTIGONGDEHUANJINGTIAOJIANXIAWENDING、LIANXU、ANQUANDEZIDONGYUNZHUANBINGYICIBAOZHENGGUOLUDEZHENGCHANGYUNXING。

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