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為什么要定期檢查鍋爐減溫器

類別:減溫減壓裝置九游会手机客户端 | 發布日期:2020年03月29日

九游会手机客户端ZAIREZHENGQIPENSHUIJIANWENQISHIZHENGQICEDIAOJIEZAIREQIWENDEZHUYAODIAOWENSHEBEI, ZHENGQICEZAIREQIWENDIAOJIETONGGUOXIANGZAIREZHENGQIZHONGZHIJIEPENRULENGQUESHUI,SHIZHIZHENGFAWEISHUIZHENGQIBINGYUZAIREZHENGQILIANGHAOHUNHEYIDADAOJIANGDIZHENGQIWENDUDEMUDE,SHIDIANZHANGUOLUYUNXINGSHIBUKEQUESHAODEFUZHUDIAOWENSHOUDUAN。RUOPENSHUIJIANWENQIFASHENGPENGUANDUANLIESHIGU,ZEYANZHONGWEIXIEGUOLUSHEBEIDEANQUANYUNXING。XIAMIANJIUYIYIQIWOGONGSIJINQIJIANCHAFAXIANDEZAIREWEILIANGPENSHUIJIANWENQIPENGUANDUANLIEANLIJINXINGJIESHAO。

事故經過及處理

九游会手机客户端2017NIAN06YUE06RIMOUDIANCHANG#7JIZUTINGYUNJIANXIU,ZAIDUI#7LU7-1ZAIREQIWEILIANGPENSHUIJIANWENQIJINXINGNEIKUIJINGJIANCHASHIFAXIANPENGUANDUANLIE,SUIJIDUI7-2ZAIREQIJIANWENQIJINXINGJIANCHAFAXIANCUNZAITONGLEIWENTI,JIANG7-1、7-2ZAIREQIJIANWENQIFENGTOUJINXINGGECHUQUCHUPENGUAN。ZAIDUIGAIDUANLIEBUWEIJINXINGMUSHIJIANCHASHIFAXIANGAILIANGGEPENGUANDEPENZUIBUWEIWEIZHANGKAICHANGKOUXING,BUFUHEYIBANPENZUIDEJIEGOUXINGSHI,HUAIYIPENZUILINGBUJIANTUOLUO,HEDUITUZHIQUESHISHEJILEDINGWEIBAN,ZAIJIANWENQIFUJINWEIFAXIANDINGWEIBAN,HUAIYIYIBEICHONGSHUAZHIGAOZAIRUKOUJIXIANGCHU,TONGSHIJIANCHAFAXIAN7-2DEDINGWEIBANJIAO7-1QUESHI4GE,HUAIYI7-2ZAIREQIJIANWENQINEICHENGUANDELUOSHUANDINGWEIBANYEBEICHONGSHUAZHIGAOZAIRUKOUJIXIANGCHU,LIJIANPAICHEJIANRENYUANGECHUGAOZAIRUKOUJIXIANGSHOUKONG,FAXIAN7-1、7-2LIANGGEPENGUANDEPENZUILINGBUJIANJI7-2ZAIREQIJIANWENQINEICHENGUANDE4KUAIDINGWEIBANJUNFENSANZAIGAISHOUKONGFUJIN,SUIJIJIANGQIQUANBUQUCHU,DUIDUANLIEDEPENGUANJIPENZUILINGBUJIANZHONGXINZUZHUANG、HANJIEGUDINGXIUFU,FUZHUANGTOUYUNHOUZHENGCHANG。

原因分析

CHUBUFENXIPENGUANDUANLIEYUANYINWEI:①JIEGOUSHEJIBUHELI,JIANWENQIPENGUANNEICE(HANKOULIANGCEBUWEI)CUNZAITAIJIE,CUNZAIJIEGOUYINGLI,CHANGQIYUNXINGZAIBORUOCHUDUANLIE;②JIANWENQICHANGSHIJIANYUNXINGPENSHUIGUANCUNZAIZHENDONGXIANXIANG,PILAODUANLIE;③SHEJIPENSHUIWENDU160℃,ZAIREZHENGQIWENDU470℃,JIAODAWENCHAZAOCHENGDEREYINGLIJIAODA,YIJIJIANWENSHUIDEFANFUTOUTINGZAOCHENGPENGUANREPILAODUANLIE;④PENGUANDUODUANHANJIECUNZAIYINGLIJIZHONG。

解決方法及預防措施

針對該問題,提出以下預控措施:

  • 建議咨詢廠家后討論將結構進行改造,將噴管換成整體車削結構、去除臺階,避免結構應力及多段焊接產生的焊接應力集中問題;
  • 對噴管進行可靠的固定,避免振動產生斷裂;
  • 運行時嚴格按運行規程操作,對再熱汽溫的調節堅持以煙氣側再熱汽溫調節為主,再熱器微量噴水減溫器調節為輔的原則;
  • 定期對減溫器進行檢查,及時發現問題及時處理;
  • 再熱器微量噴水減溫器噴水量應控制在設計范圍內,以利于減溫器的長期安全、經濟運行;
  • 對于電廠煤質變化大、負荷變動頻繁的情況,減溫器設計應充分考慮熱循環應力及機械循環應力,應力集中的焊接部位,均應進行加固或優化,在設計上應留有足夠安全裕度。

九游会手机客户端PENSHUIJIANWENQISHIGUOLUDEZHUYAODIAOWENBUJIAN,TONGSHIYESHIGUOLUDEZHONGYAOCHENGYABUJIAN,YINCI,BAOZHENGQIANQUAN、KEKAOYUNXING,DUIZHENGTAIGUOLUDEANQUAN、JINGJIYUNXING,YOUQISHIDUICHENGYALIANXIANG、SHOUREMIANGUANCAIDESHOUMINGGUANLIJUYOUSHIFENZHONGYAODEYIYI。RICHANGYUNXINGCAOZUO、JIANXIUJIANCHAYOUWEIZHONGYAO,FAXIANWENTIJISHIHUIBAO、CHULI,WEIJIZUANQUANWENDINGYUNXINGTIGONGBAOZHANG。

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