YG004-2011-1预制保温管件标准[1].doc

企业标准标准编号：YG004-2011-1标准名称：预制保温管件起草： 日期： 审核： 日期： 审定： 日期： 批准： 日期： 执行日期：批准之日起执行巴彦淖尔市阳光能源集团有限公司2011-4-14YG004-2011-1 预制保温管件1、技术标准1.1、预制保温管件执行以下标准：CJ/T155-2001高密度聚乙烯外护管聚氨酯硬质泡沫塑料预制直埋保温管件；EN488-2003地下热水供应网络用预隔热连接外皮的管道系统、带聚氨酯绝热和聚乙烯外皮的钢介质管用钢阀门组件；1.2、钢制部分符合CJJ282004城镇供热管网工程施工及验收规范中第五章第二节管道加工和预制管件制作、GB/T13401-2005钢板制对焊管件与GB/T12459-2005钢制对焊无缝管件要求；1.3、钢制部分材质符合GB700-88碳素结构钢标准；1.4、钢管件的焊接质量评定按GB3323钢焊缝射线照片底片等级分类法标准中级以上，JB4730-94锅炉和钢制压力容器对接焊缝超声波探伤中级，为合格；2、钢制部分主要技术要求2.1、钢制三通、弯头的外径及壁厚应符合下表（壁厚下差0.5mm）：序号公称直径三通外径（mm）三通壁厚（mm）1DN12001220162DN11001120163DN10001020144DN900920125DN800820126DN600630107DN500529108DN450478109DN4004261010DN350377911DN300325912DN250273913DN200219814DN1501594.515DN1251334.516DN100108417DN8089418DN65763.519DN50573.520DN4051321DN323832.2、钢制部分材质采用20#钢；2.3、全部焊缝做100%X射线检验，并出具检测合格报告；2.4、钢管件要求对材质进行百分之百检测，并出具检测报告；2.5、弯头直径DN600的采用对焊弯头，纵向焊缝不多于2道，环向焊缝不多于2道，弯曲部分钢板不得拼接,其中可焊接直段1D；弯曲半径1.5D(D为管道外径)时采用无缝推制，弯头可焊接直段，环向焊缝不超过2道；其余弯头均采用无缝热煨，且不得有焊缝；裸管件不需要增加可焊接直段;2.6、弯头直段长度符合下表（直段长度允差10mm）：表1序号弯头公称直径弯头直段长度（mm）1DN120010002DN110010003DN100010004DN90010005DN8008006DN6008007DN5008008DN4508009DN40060010DN35060011DN30060012DN25060013DN20060014DN15050015DN12550016DN10050017DN8050018DN6550019DN5050020DN405002.8、三通主通径DN600采用钢板卷制成管拔制三通口，纵向焊缝不得多于1道，且不得有环向和斜向焊缝；接出支管对接焊口须加强筋加强，加强筋间距为100120mm，加强方法符合相关规范;2.9、三通尺寸要求如下表2、表3：表2 平面三通几何尺寸 支管 干管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表3 45跨越三通几何尺寸 支管 干管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、保温部分要求3.1、保温外护管标准符合CJ/T155-2001高密度聚乙烯外护管聚氨酯硬质泡沫塑料预制直埋保温管件要求,保温厚度与外护管外径、厚度要求见下表4。表4 保温外护套厚度及保温层厚度要求公称直径外护套外径x壁厚保温层厚度（mm)DN32110x2.531.5DN40110x2.528.5DN50140x337DN65140x329DN80160x332.5DN100200x3.239.8DN125225x3.539DN150250x3.941.6DN150250x3.937.1DN200315x4.943.1DN250365x5.640.4DN300420x740.5DN350500x7.853.7DN400550x8.853.2DN450578x8.841.2DN500655x9.853.2DN600760x11.153.9DN700850x1