保温管发展现状与GB/T 29047、29046修订建议  

Development Status of Prefabricated Directly Buried Insulating Pipes and Revision Proposal of GB/T 29047 and GB/T 29046

作　　者：周抗冰[1] 

机构地区：[1]北京豪特耐管道设备有限公司,北京100176

出　　处：《煤气与热力》2016年第7期25-27,共3页Gas & Heat

摘　　要：结合预制直埋保温管技术发展现状,对GB/T 29047—2012《高密度聚乙烯外护管硬质聚氨酯泡沫塑料预制直埋保温管及管件》、GB/T 29046—2012《城镇供热预制直埋保温管道技术指标检测方法》提出修订建议,涉及PE外护管的壁厚、组合管热导率、聚氨酯泡沫热导率、管道接头、聚氨酯泡沫检测取样位置。Combined with the development sta- tus of prefabricated directly buried insulating pipes technology, the proposals of revising the national stand- ards Prefabricated Directly Buried Insulating Pipes and Fittings with Polyurethane Foamed-plastics and High Density Polyethylene Casing Pipes （GB/T 29047 - 2012） and Test methods of Technical Specification for Pre-insulated Directly Buried District Heating Pipes （ GB/T 29046 - 2012） are offered, which involves the PE protective pipe wall thickness, the thermal conduc- tivities of combined pipe and polyurethane foam, pipe joints and polyurethane foam test sampling location.

关 键 词：预制直埋保温管 预制直埋保温管件 标准修订 

分 类 号：TU995.3[建筑科学—供热、供燃气、通风及空调工程]