体彩排列5质合遗漏

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3PE防腐管现场施工中的问题及防护措施

2019-05-16 17:48:54

随着我国石油   气需求量的不断增加,管道运输已成为油气远距离输送的主要方式。管道运输具有输送量大、占地少、可靠性高、便于自动化管理等优点。但同时也存在腐蚀问题。油气管道的腐蚀,造成管道壁厚变薄甚至管道穿孔和泄漏,给管道输送企业造成严重的隐患和人员财产损失。我国投产的油气管道发生腐蚀穿孔情况屡见不鲜,不仅造成油气泄漏损失、严重污染环境及维修发生的人力、材料成本费用,甚至可能引发火灾和爆炸事故。为防止金属管道的腐蚀,采取了多种防腐办法。油气管道常用的外防腐材料主要有以下几种:石油沥青、煤焦油瓷漆、环氧煤沥青、环氧粉末、聚乙烯胶粘带、两层聚乙烯及三层聚乙烯等。

SANCENGJUYIXIFANGFUCENGJUYOUZHANJIEXINGQIANG、JIXIEQIANGDUGAO、HUAXUEXINGNENGWENDING、JUEYUANXINGHAO、KANGFUSHINENGLIQIANGDENGYOUDIAN,YICHENGWEILIXIANGDEMAIDIGUANDAOWAIFANGFUCAILIAO。WOGUOZAI1995NIANYINJINLEDI YITIAO3PESHENGCHANZUOYEXIAN,MUQIANGUONEIYIYOUSHUSHITIAO3PESHENGCHANZUOYEXIAN,YIZAISHANJINGSHUQIGUANDAO、KUZHENGGUANDAO、XIQIDONGSHUDENGGUANDAOGONGCHENGZHONGSHIYONGLE3PEFANGFUGANGGUAN。ZHANGSHUGUANDAOSHIGONGSHIGUANDAOGONGCHENGDEZHONGYAOZUCHENGBUFEN,SHIGONGZHILIANGZHIJIEJUEDINGLEGUANDAOFANGFUXIAOGUOYIJIGUANDAODESHOUMING、JINGJIXIAOYIHESHENGCHANYUNXING。3PEFANGFUCENGDEZHUYAOQUEXIANSHIZAISHIGONGGUOCHENGZHONGXINGCHENGDEJIXIESUNSHANG。YIXIACONG3PEFANGFUGANGGUANDEXIANCHANGSHIGONGDEJIAODU,FENXI3PEFANGFUGUANZAIGUANDAOSHIGONGGUOCHENGKENENGCHANSHENGDEQUEXIANYUANYINJIFANGHUCUOSHI。

13PEFANGFUGUANJIEGOUJIFANGFUYUANLI

3PEFANGFUJIEGOUYOUSANCENGZUCHENG:JIAODICENGSHIHUANYANGFENMOTUCENG(>120μm),ZHONGJIANCENGSHIJIAOZHANJICENG(>170μm),MIANCENGSHIJUYIXICENG(YUE1.8-3.7mm)。ZAISANCENGJIEGOUZHONG,HUANYANGDIQINENGGOUXINGCHENGLIANXUDEBOMO,ZHIJIEZHANJIEZAIGANGGUANBIAOMIAN,JUYOULIANGHAODENAIFUSHIJBIHEKANGYINJIBOLINENGLI,KEYUZHONGJIANCENGDEJIAOZHANJIXINGCHENGHUAXUEZHANJIE,SHIFANGFUCENGZAIJIAOGAODEWENDUXIARENGJUYOULIANGHAODEZHANJIEXING。ZHONGJIANCENGYIBANSHIGONGJUWUJIAOZHANJI,ZHUYAOCHENGFENSHIJUXITING。GONGJUWUJIAOZHANJIDEBUFENJIXINGGUANNENGTUANNENGGOUYUHUANYANGDIQIDEHUANYANGJITUANFASHENGHUAXUEFANYING,XINGCHENGQINGJIANHUOHUAXUEJIAN,SHIZHONGJIANCENGYUDICENGYOULIANGHAODEZHANJIEXING,QIZHONGFEIJIXINGDEYIXIBUFENZEYUMIANCENGJUYIXIJUYOULIANGHAODEQINHEZUOYONG,ZHEIYANGZHONGJIANCENGYUMIANCENGYEJUYOULIANGHAODEZHANJIEXING。JUYIXIMIANCENGDEZHUYAOZUOYONGSHIQIBAOHUJIFANGFUZUOYONG,YUCHUANTONGDELIANGCENGJUYIXIFANGFUJIEGOUJUYOUXIANGTONGDEZUOYONG。3PEFANGFUJIEGOUZONGHELEHUANYANGFENMOHEJICHUJUYIXILIANGZHONGFANGFUCENGDEYOULIANGXINGNENG,JIANGHUANYANGFENMOTUCENGDEZHANJIEXING、NAIHUAXUETEXINGYUJICHUJUYIXIDEJIXIEBAOHUTEXINGJIEHEQILAI,CONGERXIANZHUGAISHANLEZHENGTIDEFANGFUSHIXINGNENG。GENJUXIANGGUANYANJIU,SANCENGPEFANGFUJIEGOUKESHIMAIDIGUANDAODESHOUMINGDADAO40~50NIAN,ZAIBEIRENWEISHIMUQIANJIAOXIANJINDEGUANDAOWAIFANGFUFANGFA。

2XIANCHANGSHIGONGZHONGCUNZAIDEWENTI

体彩排列5质合遗漏SANCENGJUYIXIJIEGOUSHIYIGEYOUJIZHENGTI,MEICENGDOUYOUZIJIDEZUOYONG,MEICENGZAODAOPOHUAIHUODABUDAOBIAOZHUNYAOQIUDOUJIANGYINGXIANGZHENGTIXIAOGUO。GENJUXIANCHANGSHIGONGJINGYAN,3PEFANGFUGUANZAISHIGONGGUOCHENGZHONGCUNZAIDEWENTIZHUYAOYOUYIXIALIANGGEFANGMIAN。

2.1FANGFUGUANBIAOMIANKEPENGYANZHONG

WAIGUANZHILIANGLIANGHAODE3PEFANGFUGUANCONGFANGFUCHANGLADAOSHIGONGXIANCHANGHOUJINGGUODUOCIYUNSHU、DIAOZHUANG、DUIFANGDENGGUOCHENG,NANMIANFASHENGKEPENG、ZHUANGJI,ZAOCHENGFANGFUCENGBEIPOHUAI,DAIDAOXIAGOUSHI,YOUDEFANGFUGUANYISHANGHENLEILEI,YOUDESHENZHIFASHENGLOUTIEXIANXIANG。XIAGOUHUITIANGUOCHENGZHONG,DAXINGJIXIECAOZUOBUGUIFAN,CAIYONGDEFANGHUCUOSHIBUHELI,YIJIGOUNEIDEYANSHIDENGWUTIJUNKENENGPENGHUAIFANGFUCENG。

2.2BUKOUBUSHANGSHIGONGBUGUIFAN

体彩排列5质合遗漏JUTONGJI,WOGUOSHIYOUHUAGONG、GONGGONGSHIYEDENGXINGYEZHONGYINGUANDAOFUSHICHUANKONGMEINIANDA2WANDUOCI,ZHUYAOFASHENGZAIGANGGUANDEJIEKOUCHUHEGUANDAOZISHENDEKEPENGSHANG。GUANDAODEBUKOU、BUSHANGDUIGUANDAOBAOHUYOUZHEZHONGYAOYIYI,ZHIJIEJUEDINGGUANDAOFANGFUXIAOGUO。BUKOUBUSHANGCUNZAIDEZHUYAOWENTISHIPENSHACHUXIUBUDABIAO、HUANYANGDIQITUCENGHOUDUBUGOU、DIQICAIYONGSHIMOANZHUANGGONGYI,SHIDEDIQIHOUDUHEJUNYUNXINGMEIYOUBAOZHENG,CAOZUORENYUANZERENXINBUQIANGDENG。CHUXIUBU   ,GANGGUANBIAOMIANHUICHENDUO,JIAZHIDIQIGUOBOZAOCHENGDIQIHEGANGGUANBIAOMIANFUZHELIXIAJIANG,CONGERSHIRESHOUSUODAIDEBOLIQIANGDUJIANGDI。