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管道敷设后防腐层完整性检测
发布时间:2019-03-08 有836人点击

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管道防腐层完整性检测方法选择

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MUQIAN,GUONEIWAIMAIDIJINSHUGUANDAOWAIFANGFUCENGWANZHENGXINGJIANCEJISHUFANGFAZHUYAOFENWEIDIANLIUFAHEDIANWEIFALIANGDALEI。WOGUOSHIYOUTIANRANQIXINGYEBIAOZHUNSY/T 0087.1—2006《GANGZHIGUANDAOJICHUGUANFUSHIPINGJIABIAOZHUNMAIDIGANGZHIGUANDAOWAIFUSHIZHIJIEPINGJIA》TUIJIANLEBUTONGHUANJINGXIAJIANCEFANGFADEXUANZEYUANZE。

南方彩票网MAIDIGANGZHIGUANDAOFANGFUCENGWANZHENGXINGJIANCEFANGFAXUANZEBIAO

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注:1. 可适用于小的防腐层漏点(孤立的,一般面积小于600mm)和在正常运行条件下不会引起阴极保护电位波动的环境;

南方彩票网2. KESHIYONGYUDAMIANJIDEFANGFUCENGLOUDIAN(GULIHUOLIANXU)HEZAIZHENGCHANGYUNXINGTIAOJIANXIAYINQIYINJIBAOHUDIANWEIBODONGDEHUANJING;

南方彩票网3. BUNENGYINGYONGCIFANGFA,HUOZAIWUKEXINGCUOSHISHIBUNENGSHISHICIFANGFA。

在上述方法中,密间隔电位测量法(CIPS)、直流电位梯度(DCVG)、交流电位梯度(ACVG)、皮尔逊法(Person)都是基于电位法的测量方法,交流电流衰减法(ACAS)是基于电流法的测量方法。

南方彩票网ZAISHIJIJIANCEGONGZUOZHONG,CHANGCHANGHUIJIANGLIANGZHONGFANGFALIANHEQILAISHIYONG。RUACVGHEACASDOUSHIJIYUJIAOLIUXINHAODECELIANGFANGFA,KEZAIYITAIJIANCEYIQILIANHESHIYONG。DIANXINGDEJIANCEYIQIJIUSHIYINGGUOLEIDIGONGSISHENGCHANDERD-PCM(Pipeline Current Mapper),YECHENGGUANZHONGDIANLIUCEHUIXITONG。YINWEIGAISHEBEITIGONGZAIJIANCESHITIGONGDUOZHONGPINLVDEJIAOLIUDIANXINHAO,YINCIZAIXINGYENEIYEJIANGQICHENGWEIDUOPINGUANZHONGDIANLIUFA。

CIPSHEDCVGDOUSHIJIYUZHILIUDIANWEIXINHAODECELIANGFANGFA,YINCIZAISHIJIJIANCEGONGZUOZHONGYEPEIHESHIYONG,CIPSWANGWANGKEYICHUBUPANDUANFANGFUCENGPOSUNDIANDEDAGAIWEIZHIHUOFANWEI,ERDCVGZEKEYIJINGQUEDINGWEIFANGFUCENGPOSUNDIANDEWEIZHI。

PersonSHIZAOQIDEYIZHONGJIYUJIAOLIUDIANWEIXINHAODECELIANGFANGFA,LIYONGRENTIZUOJIANLOUYIDEGANYINGYUANJIANLAICELIANGFANGFUCENGPOSUNDIANFUSHEDAODIBIAOJIAOLIUDIANWEITIDU,CONGERDINGWEIFANGFUCENGPOSUNDIANDEWEIZHI,QICELIANGYUANLIYUDUOPINGUANZHONGDIANLIUFAJIBENXIANGTONG。

防腐层完整性检测相关规定

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WEILEBAOZHENGGUANDAOFANGFUCENGZHILIANG,GENGHAODIFANGZHIGUANDAOJINSHUFUSHI,ZAIGUANDAOSHIGONGJIYANSHOUDENGBIAOZHUNGUIFANZHONGDUIGUANDAOFANGFUCENGWANZHENGXINGJIANCEJINXINGLEXIANGYINGGUIDING,JUTIRUXIA:

GB 50369—2014《YOUQIZHANGSHUGUANDAOGONGCHENGSHIGONGJIYANSHOUGUIFAN》ZHONGGUIDING:GUANGOUHUITIANTUZIRANCHENJIANGMISHIHOU,YINGDUIGUANDAOFANGFUCENGJINXINGDIMIANJIANLOU,QIEYINGFUHESHEJIGUIDING。YIBANDIDUANZIRANCHENJIANGYIWEI30TIAN,ZHAOZEDIJIDIXIASHUIWEIGAODEDIDUANZIRANCHENJIANGYIWEI7TIAN。

GB/T 19285—2014《埋地钢质管道腐蚀防护工程检验》中规定:管道回填土自然沉降后,应对管道外防腐层进行全线破损点定位检测,并作好破损点标识,符合设计规定为合格。外防腐层整体状况检测可采用电流—电位法。

GB/T 21447—2008《GANGZHIGUANDAOWAIFUSHIKONGZHIGUIFAN》ZHONGGUIDING:MAIDIGUANDAOFANGFUCENGYANSHOUSHI,YINGANZHAOYOUGUANGUIDINGJINXINGDIMIANJIANLOU,LOUDIANSHUBUYINGDAYUMEI10km 5GE。

【BENZHANXIBENWANGBIANJIZHUANZAI,ZHUANZAIMUDEZAIYUCHUANDIGENGDUOXINXI,BINGBUDAIBIAOBENWANGZANTONGQIGUANDIANHEDUIQIZHENSHIXINGFUZE。BENZHANZHITIGONGCANKAOBINGBUGOUCHENGRENHETOUZIJIYINGYONGJIANYI】


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