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。