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1.发明申请DOUBLE-WALL PIPE WITH A HEAT INSULATING LAYER AND A PLASTIC OUTER PIPE THEREOF 审中-公开带绝热层的双壁管和一个塑料外管公开(公告)号：US20160363251A1
公开(公告)日：2016-12-15
申请号：US15177359
申请日：2016-06-09
发明人： Joern Homann , Stephan Peters
CPC分类号： F16L59/143 , B32B1/08 , B32B5/18 , B32B7/12 , B32B27/065 , B32B27/08 , B32B27/306 , B32B27/32 , B32B27/36 , B32B27/40 , B32B2266/0264 , B32B2266/0278 , B32B2266/08 , B32B2307/304 , B32B2307/554 , B32B2307/72 , B32B2307/724 , B32B2307/732 , B32B2597/00 , F16L9/121 , F16L2011/047
摘要： A double-wall pipe includes a media-conveying inner tube, and a multilayer plastics outer tube with a gas permeation barrier layer. The plastics outer tube includes a significant proportion of polyethylene (PE). The gas permeation barrier layer consists of a compact extruded polyethylene terephthalate (PET) layer having a material thickness of from 0.8 mm to 2 mm or comprises a closed-cell foam made from PET having a material thickness of between 10 mm and 100 mm. A heat insulating layer is arranged in an annular gap between the inner tube and the plastics outer tube.
摘要翻译： 双壁管包括介质输送内管和具有气体渗透阻挡层的多层塑料外管。 塑料外管包括大部分聚乙烯（PE）。 气体渗透阻挡层由材料厚度为0.8mm至2mm的紧凑挤出的聚对苯二甲酸乙二醇酯（PET）层组成，或者包括由PET制成的闭孔泡沫，材料厚度为10mm至100mm。 绝热层设置在内管和塑料外管之间的环形间隙中。
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公开(公告)号：US10054252B2
公开(公告)日：2018-08-21
申请号：US15177359
申请日：2016-06-09
发明人： Joern Homann , Stephan Peters
IPC分类号： F16L9/14 , F16L59/14 , B32B5/18 , B32B7/12 , B32B27/08 , B32B27/36 , B32B27/40 , B32B1/08 , F16L9/12 , B32B27/06 , B32B27/30 , B32B27/32 , F16L11/04
CPC分类号： F16L59/143 , B32B1/08 , B32B5/18 , B32B7/12 , B32B27/065 , B32B27/08 , B32B27/306 , B32B27/32 , B32B27/36 , B32B27/40 , B32B2266/0264 , B32B2266/0278 , B32B2266/08 , B32B2307/304 , B32B2307/554 , B32B2307/72 , B32B2307/724 , B32B2307/732 , B32B2597/00 , F16L9/121 , F16L2011/047
摘要： A double-wall pipe includes a media-conveying inner tube, and a multilayer plastics outer tube with a gas permeation barrier layer. The plastics outer tube includes a significant proportion of polyethylene (PE). The gas permeation barrier layer consists of a compact extruded polyethylene terephthalate (PET) layer having a material thickness of from 0.8 mm to 2 mm or comprises a closed-cell foam made from PET having a material thickness of between 10 mm and 100 mm. A heat insulating layer is arranged in an annular gap between the inner tube and the plastics outer tube.
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