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三层PE管道热收缩带失效原因

FABURIQI:2015/5/4 10:47:35

(NEIRONGXUANZI:《SANCENGPEGUANDAORESHOUSUODAISHIXIAOYUANYIN》。ZUOZHE: CHENHONGYUAN,LIULINGLI,ZHAOJUN,HOUYU,WANGDEZENG,HANZHONGQIN。ZHEIPIANWENZHANGKEGUANDEFENXILEMUQIANGUONEI3PEGUANDAOBUKOUSHIXIAODEYUANYINHEJIEJUEBANFA,DUIWEILAIGUANDAOBUKOUGONGYIDEFAZHANJUYOUFEICHANGJIJIDEZHIDAOZUOYONG。)

    ZHONGGUOSHIYOUXINJIANGUANDAOCONGSHANJINGXIANKAISHI,DADUOCAIYONGSANCENGPEFANGFUSHIJIEGOU,YUQIPEITAODEXIANCHANGFANGFUSHICENGBUKOUJIHUQUANBUCAIYONGHUANYANGDIQIJIARESHOUSUODAIJIEGOU(SHAOLIANGGUANDAOCAIYONGLEYETAIHUANYANGTULIAO)。XIANGDUIZHUGUANXIANFANGFUSHICENGZAIFANGFUSHICHANGDEZIDONGHUALIUSHUIXIANSHENGCHANFANGSHI,RESHOUSUODAIBUKOUANZHUANGDEQUANGUOCHENGJIBENWEISHOUGONGCAOZUO,SHOUXIANCHANGSHIGONGHUANJING、GONGRENANZHUANGSHULIANCHENGDUDENGYINSUYINGXIANGFEICHANGDA,SHIGUANDAOFANGFUSHICENGZHONGZUIBORUODEHUANJIE。ZAIHOUQIDEYUNXINGZHONG,SANCENGPEGUANDAORESHOUSUODAIBUKOUDESHIXIAOQINGKUANGSHIYOUFASHENG。

    国内外三层PE管道补口材料有PE热收缩带、PP热收缩带、聚氨酯、无溶剂液态环氧、聚乙烯冷缠带、聚丙烯冷缠带、粘弹体防腐胶带等,总体情况以热收缩带为主。

    2005NIAN、2007NIANJI2008NIAN,GUONEIBUFENGUANDAOYUNYINGDANWEIZUZHIKAIZHANLESANCENGPEGUANDAORESHOUSUODAIYINGYONGXIANZHUANGDEDIAOCHAGONGZUO。DIAOCHAGUANJINGFANWEICONG239mm~1016mm,SHUSONGJIEZHIHANGAILEYUANYOU、TIANRANQIHECHENGPINYOU,DIAOCHADIANZUIZHANGFUYISHIJIAN6NIAN,ZUIDUANFUYISHIJIAN2NIAN。KAIWADIAOCHAFAXIAN,RESHOUSUODAIBUKOUSHIXIAOZHUYAOBIAOXIANWEIRESHOUSUODAIYUZHUTIGUANDAOFANGFUSHICENGDAJIEBUWEIZHANJIEBULIANGJIRESHOUSUODAIYUGUANTIZHANJIEBULIANGLIANGZHONGQINGKUANG。YOUQIYINGGAIYINQIZHONGSHIDESHIZAISUOYOUSHIXIAODIAN,JINSHUGUANTIJUNCUNZAICHENGDUBUDENGDEFUSHI。CIWAI,DIAOCHAYEFAXIANLERESHOUSUODAILUOSHANG、POSUN、GUDINGPIANTUOLUODENGWENTI。

热收缩带失效原因分析

1.施工质量方面

1.1BIAOMIANCHULI

BUKOUWEIANYAOQIUJINXINGPENSHACHULIHUOBIAOMIANCHULIBUFUHEYAOQIU,SHIDAOZHIDIQIBOLI、RESHOUSUODAIYUGUANTIJINSHUZHANJIEBULIANGDEZHUYAOYUANYIN。BIAOMIANCHULIZHONG,MOUXIESHIGONGDANWEIXUANYONGDESHIYINGSHAQINGJIEDUBUGOU,LIJINGBUYI。 

1.1.1QINGJIEDUBUGOUDESHIYINGSHAYIBANHANYOUKERONGYAN,BIAOMIANCHULIHOUKERONGYANHUICANLIUZAIGUANTIBIAOMIAN。DANGGANGBIAOMIANCUNZAIYOUKERONGXINGYANSHI,YOUYUHUANYANGDIQIDENEIWAISHENTOUYABUTONG,SHUIQIJIANGTOUGUOHUANYANGDIQISHENRUDAOGANGDEBIAOMIAN,YUKERONGXINGYANJIEHEZAOCHENGGANGBIAOMIANDEFUSHIERBOLIFANGFUCENG。

1.1.2SHIYINGSHAZAIGAOYAXIAYUGUANTIZHUANGJIHOU,SHIYINGSHAFENMOQIANRUDAOBIAOMIANMAOWENZHONG,HENNANQINGCHU,ZHEIJIANGXUERUODIQIYUGUANTIDEFUZHELI,SHIDEDIQIBUNENGYUGANGBIAOMIANZHIJIEJIECHU,ZAOCHENGTULIAODEFUZHELIJIANGDI,YINGXIANGDIQIDESHIYONGSHOUMING。

1.2RESHOUSUODAIHONGKAOZHILIANG

RESHOUSUODAIYUGUANTITUCENGJIDAIDIQIGUANTIDEZHANJIEZHUYAOYIKAORERONGJIAODERONGRONGZHANJIE,HONGKAODEWENDUJISHIJIANDOUYOUYANGEDEXIANZHI,BUFENRENYUANZERENXINBUQIANGYIJIGANGONGQIGANJINDUDEJIEGUO,SHIDEHONGKAOZHILIANGDADAZHEKOU,YANZHONGYINGXIANGLEZHANJIEKEKAOXING。

1.3DIQITUZHUANGZHILIANG

YOUYUQUEFADUIDIQITUZHUANGZHILIANGDEJIANYANHUANJIE,JIAZHISHIMOANZHUANGRESHOUSUODAIKENENGZAOCHENGDEDIQISUNSHANG,SHIDEDIQIDETUZHUANGZHILIANGNANYIBAOZHENG。

2.材料方面

2.1GUONEIZAOQIRERONGJIAOYUPECENGZHANGQIZHANJIEXIAOGUOBUJIA

2.1.1GUONEIZAOQIRERONGJIAOYUPEBUNENGXINGCHENGZHANGQIYOUXIAODEZHANJIE,YOUXIAOZHANJIESHIZHIBOLIPOHUAIFASHENGYUJIAOCENGNEIBU,JISUOWEINEIJUPOHUAI。DIAOCHAXIANSHI,JIHUSUOYOUDEZHANJIESHIXIAOJUNCHENGXIANWEIJIAOCENGYUPEZHIJIANDEZHANFUXINGSANGSHI。

2.1.2MUQIANRERONGJIAODEZHANJIEZHUYAOYIKAODUIPEBIAOMIANDELAMAOHELAMAOSHIHUOYANJIAREDUIPE CENGDEJIHUOZUOYONG,LAMAOZUOYONGZENGDALEZHANJIEMIANJI,QIZUOYONGWEIWULIQIANHE,ERHUOYANDUIPEDEHUOHUANENGGOUZENGJIARERONGJIAOYUPEDEZHANJIEXING,DANSHIZHANGQIZHANJIEXIAOGUOSHANGDAIKAOCHA,ERQIEHUOYANJIAREDEBUJUNYUNXINGSHIZHONGCUNZAI,YINCIJUBUDEBUZHANJIESHIBUKEBIMIANDE。

WEIKAOCHAGUONEIZAOQIRESHOUSUODAIRERONGJIAOYUPEDEZHANGQIZHANJIEXING,XUANZELEGUONEIBUFENCHANGJIADECHANPINJINXINGLESHIYAN。SHIYANZAIJUYIXIFANGFUGUANDUANSHANGJINXING,DUIJUYIXIBIAOMIANANZHAOJIUJINGCAXIWEITUDIQI、SHAZHIDAMOWEITUDIQI、SHAZHIDAMOQIESHUATUDIQI、GANGSISHUALAMAOQIESHUATUDIQISIZHONGFANGSHIJINXINGCHULI,BOLISHIYANZHOUQIWEI24h、30TIAN。SHIYANZHOUQINEI,JIANGGUANDUANZIRANPULUZAIHUANJINGDANGZHONG。SHIYANJIEGUOXIANSHI,GUONEIZAOQIRERONGJIAOYUPECENGZHANGQIZHANJIEXIAOGUOBUJIA。

2.2DIQIXINGNENGQIANJIA、DIQIHOUDUBO

DIAOCHAFAXIAN,ZAIRESHOUSUODAIYUGUANTIZHANJIEBULIANGDEBUWEI,DIQIJUNBIAOXIANCHUTUOLUO、BUWANZHENGDENGWENTI,CHULESHIGONGYINSUWAI,HAIYOUYIXIALIANGGEYINSU:

2.2.1XIANYOUXIANGGUANBIAOZHUNZHONGDUIWURONGJIYETAIHUANYANGDIQIDEYINJIBOLICESHIXIANGMUZHIYAOQIULE65℃、48hDECESHINEIRONG。ER48hDESHIYANSHIJIANGUODUAN,BUZUYIFANYINGCAILIAODEZHANGQIZHANJIEXINGNENG。TONGSHI,YOUYUXIANYOUBIAOZHUNGUIDINGYINJIBOLISHIPIANHOUDUBUYINGXIAOYU200μm,ERCHANGJIASONGJIANDESHIPIANYIBANDOUZAI300μm YISHANG,DANZAISHIJISHIGONGZHONGDEDIQIHOUDUQUEZHIYOU120μm ZUOYOU,ZHEIJIUKENENGDAOZHISHIPIANSHIYANJIEGUOHAO,ERCAILIAOXIANCHANGSHIJIXINGNENGCHADEQINGKUANG。GUONEIGUANDAOGONGCHENGZAOQICHANGYONGDERESHOUSUODAIHUANYANGDIQI/GANG(DIQIPINGJUNHOUDU230~280μm)JING28TIAN65℃YINJIBOLISHIYANYIHOU,ZAI60mmZUIDAKECEZHIJINGFANWEINEIHUANYANGDIQIQUANBUBOLI。YOUCIKEJIAN,MUQIANGUONEIGUANDAOGONGCHENGZAOQICHANGYONGDERESHOUSUODAIHUANYANGDIQINAIYINJIBOLIXINGNENGBUJIA。

2.2.2XIANYOUBIAOZHUNHEJISHUGUIGESHUYAOQIUDIQIZUIXIAOSHIMOHOUDU≥120μm。ZAICIGUIDINGXIA,XIANCHANGKAIWADIANDEDIQIBUWANZHENGDEQINGKUANGBIJIAOCHANGJIAN,YOUDEKAIWADIANSHENZHIJIHUKANBUJIANDIQI。GUOBODEDIQIWUFATIGONGYOUXIAODEZHANJIE,ERDANGYOUFUSHIJIEZHIJINRUSHI,YEHENNANTIGONGYOUXIAODEFANGFU,GUANTIFUSHIZAISUONANMIAN。

3.施工工艺方面 

3.1SHIMOANZHUANGRESHOUSUODAI

MUQIANGUONEIDERESHOUSUODAIJUNCAIQUSHIMOANZHUANG,JIHUANYANGDIQIWEIGUHUASHIANZHUANGRESHOUSUOWAIDAI,ZHEIYANGJIANGWUFAJIANCETUCENGDESHIJIHOUDUHEFANGFUXINGNENG,QIERESHOUSUODAIANZHUANGGUOCHENGYOUKENENGDAOZHIDIQISUNSHANGHUOTUOLUO。SUIZHERESHOUSUODAICONGZHONGJIANWANGLIANGBIANSHOUSUOHUISHIBUKOUQUYUDIQIZHONGJIANBOLIANGBIANHOU,DAOZHIDIQIBUNENGJUNYUNFUZHEZAIGANGGUANBIAOMIAN,ANZHUANGRESHOUSUODAIHOUDIQISHIFOUZHENZHENGWANQUANGUHUABUDEERZHI,FANGFUZHILIANGWUFABAOZHENG。DUIMOUZAIJIAN3PEGUANDAOSHIMOANZHUANGRESHOUSUODAIBUKOUDEZHILIANGCHOUCHAXIANSHI,DIQIZUIZHONGHOUDUBUJUN,HOUDUCONG30~260μmBUDENG。

3.2SHOUGONGJIAREDESHIGONGFANGSHI

YOUYURESHOUSUODAIJUNSHIXIANCHANGANZHUANG,BUNENGXIANGGANXIANFANGFUTUCENGYIYANGZAIGONGCHANGYUZHI,QIXINGNENGHENDACHENGDUSHOUXIANCHANGZUOYETIAOJIANHECAOZUOGONGRENZUOYEZHILIANGDEXIANZHI。HONGKAOWENDUDEKONGZHISHISHIGONGZHONGDENANDIAN,MUQIANSHOUGONGHONGKAOFANGSHIWUFABAOZHENGSHOUSUODAIZAIZUIJIAWENDUXIASHOUSUOCHENGXING。WENDUGUODIDAOZHIRERONGJIAOBUNENGHENHAODIRONGRONGZHANJIE,WENDUGUOGAOZEHUICHUXIANKAOJIAOXIANXIANG。

DUIYUDAKOUJINGGUANDAODERESHOUSUODAIFANGFUBUKOU,RONGYICHANSHENGGUANTIJIAREWENDUBUJUN、BUCHONGFENDEQINGKUANG,RENGONGHONGKAONANDUDEJIADASHIDERESHOUSUODAIDEBUKOUZHILIANGKONGZHIWENTIGENGJIATUCHU,TEBIESHISHEJIXUANYONGGAOWENXINGSANCENGPEFANGFUCENGGUANDAODEFANGFUBUKOU,YOUYUPEITAODERESHOUSUODAIBUKOUTONGYANGXUANYONGGAOWENXING,JIAOCENGDERUANHUADIANGAO,HONGKAORONGHUAJIANGGENGWEIKUNNAN。

3.3BUKOUDAJIEQUZHIJIETUSHUAHUANYANGDIQI

SANCENGJIEGOURESHOUSUODAIDEHUANYANGDIQICENGDADATIGAOLERESHOUSUODAIDUIGUANTIDEZHANJIEXINGNENG。DANSHIGEGONGCHENGJISHUGUIGESHUJUNWEIMINGQUEYAOQIUHUANYANGDIQIDETUSHUAFANWEI,SHIGONGRENYUANJIANGHUANYANGTUFUZAIZHENGGEBUKOUDEGUANTIJINSHUQUYIJIYUSANCENGPEZHUFANGFUCENGDEDAJIEQU。HUANYANGHEPEJIXINGBUTONG,RUGUOBUDUIJUYIXIBIAOMIANJINXINGHUOHUACHULI,DAJIEQUYUHENNANDADAOLIANGHAOZHANJIE。ZHONGKEYUANZHANGCHUNYINGYONGHUAXUEYANJIUSUOSHIYANYANJIULERESHOUSUODAIHUANYANGDIQIYUZHUGUANXIANPECENGDEZHANJIEXING。TONGGUOSHIYANFENXIZHENGMING,XUANQUDERESHOUSUODAIHUANYANGDIQIYUWEIZUOGAIXINGCHULIDEZHUGUANXIANPEZHIJIANBUJUBEIZHANGJIUDEZHANJIEXING。

3.4GUANTIWEITUSHUADIQI

ZAIZAOQIDERESHOUSUODAIBUKOUZHONG,BUKOUWEIZHIDADUOWEITUSHUADIQI,DANGRESHOUSUODAIYUPECENGBOLIHOU,FUSHIJIEZHIJINRURESHOUSUODAIXIA,WANGWANGDAOZHIYANZHONGDEGUANTIFUSHI。YOUYUXIANYOUGONGYIYIQUANBUTUSHUADIQI,RESHOUSUODAISHIXIAOHOUDEGUANTIFUSHIQINGKUANGDADAJIANRUO。ZHEISHUOMING,DIQIDEZUOYONGCHULETIGONGYUGUANTIDELIANGHAOZHANJIEXINGNENGWAI,QIHAIYINGYOULIANGHAODEFANGFUZUOYONG。

4.标准及技术规范方面 

RESHOUSUODAIBUKOUCHUXIANDEZHILIANGWENTICHULECAILIAOHESHIGONGFANGMIANDEYUANYINWAI,YEYUGUONEIXIANYOUSANCENGPE BUKOUXIANGGUANBIAOZHUNCUNZAILOUXIANGHEBUFENXIANGMUYAOQIUBUGAOYOUGUAN,ZHUYAOYOUYIXIAJIGEFANGMIAN。

4.1DUIBIAOMIANCHULIDEYAOQIUBUGOUQUANMIAN

GUONEIXIANYOUSANCENGPEBUKOUXIANGGUANBIAOZHUNWEIDUIBIAOMIANCHULIZHONGDEMAOWENSHENDU、MOLIAOJIYASUOKONGQIZHILIANGDENGTICHUJUTIZHIBIAO,XIANCHANGBIAOMIANCHULIZHILIANGKONGZHIQUEFAKONGZHIZHIBIAO。

4.2DIQIFANGMIAN

4.2.1DUIDIQIDETUFUFANWEIWEIZUOMINGQUEYAOQIU。DIQIDETUFUFANWEISHIBUKOUSHIGONGZHONGGUANGSHOUGUANZHUDEJIAODIANWENTIZHIYI,GUONEIXIANGGUANBIAOZHUNHEJISHUGUIGESHUWEIMINGQUEYAOQIU,GUOWAIBIAOZHUNYIBANJINXIANYUBUKOUCHUDELUOGANGHUOLUOLUDEFBETUCENGWEIZHI。ZHEIJIUDAOZHIXIANCHANGSHIGONGZHONG,DIQIYOUSHITUSHUAYUBUKOUCHUDEPESHANG,ERWEIJINGHUOHUACHULIDEPECENGYUHUANYANGDIQISHIBUNENGZHANGQIZHANJIEDE。

4.2.2DUIHUANYANGDIQIDEYINJIBOLISHIYANSHIJIANYAOQIUGUODUAN。XIANYOUDEBUKOUXIANGGUANBIAOZHUNHEJISHUGUIGESHUDUIDIQIDEYINJIBOLICESHIZHIYAOQIULE48h,65℃DECESHIZHIBIAO,48hSHIYANSHIJIANGUODUAN,BUZUYIFANYINGCAILIAODEZHANGQIZHANJIEXINGNENG。


对策及建议:

WEIQUEBAOBUKOUANZHUANGHOUDEXINGNENGJIGUANXIANDEZHANGQIANQUANYUNXING,ZHENDUIDAKOUJINGSANCENGPEGUANDAORESHOUSUODAIBUKOUYINCAILIAOXINGNENG、SHIGONGYINSUDENGYUANYINDAOZHIDEMIFENGXING、FANGFUSHIXINGBUJIADEWENTI,ZONGHEFENXIRENWEIYINGCONGYIXIAJIGEFANGMIANKAIZHANGONGZUO。

(1)JIAQIANGXIANCHANGBUKOUZHILIANGJIANKONG,QIANGHUAXIANCHANGSHIGONGRENYUAN、JIANLIRENYUANBUKOUZUOYEXIANGGUANZHISHIPEIXUN。

(2)DAJIEBUWEIBUSHUADIQI,ZHUBUTUIXINGRESHOUSUODAIGANMOANZHUANGGONGYI,JIANGXIANYOUDIQIHOUDUCONG≥120μm TIGAODAO≥200μm。

(3)XIHUABIAOMIANCHULIYAOQIU。JINZHISHIYONGBUQINGJIEDEMOLIAO,BIAOMIANCHULIYONGMOLIAO、YASUOKONGQI、BIAOMIANQINGJIEDU、MAOWENSHENDUDENGYINGDADAOSY/T0407《TUZHUANGQIANGANGCAIBIAOMIANYUCHULIGUIFAN》DEYAOQIU。

(4)KAIZHANRERONGJIAOGAIXINGYANJIU。CONGCAILIAOJIEGOUCHUFA,JINXINGZHUTIJUHEWUDEGAIXING、JIEZHI、FUHEYANJIU,TONGSHIJINXINGZENGZHANJI、ZHANDUDIAOJIEJI,YAN、TIANLIAOJIKANGYANGJIDESHAIXUAN,SHIRERONGJIAOYUWURONGJIDIQIYOUHUAXUEJIANZUOYONG,YOUYUPEJUYOULIANGHAODEQINHEXING。ZAIRERONGJIAOGAIXINGYANJIUWANCHENGHOUZAIJINYIBUDUIRERONGJIAODEXINGNENGJINXINGJIANCEQUEREN。

(5)KAIZHANRESHOUSUODAIZAIYUNXINGGONGKUANGXIADEZHANGXIAOXINGPINGJIAYANJIU。

(6)KAIZHANXINXINGBUKOUGONGYI、XINCAILIAOXIANCHANGYINGYONGSHIYANPINGJIA。

(7)TUIGUANGSHIYONGBUKOUJIAREJIJU。

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