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1. 发明申请

WO2014185772A3 METHOD TO COUNTERACT MOISTURE MIGRATION IN A THERMALLY INSULATED TUBE, AS WELL AS A TUBE MANUFACTURED ACCORDING TO THIS METHOD 审中-公开
标题翻译：防止热绝缘管中水分迁移的方法，以及根据本方法制造的管道
公开(公告)号：WO2014185772A3
公开(公告)日：2015-02-26
申请号：PCT/NL2014000016
申请日：2014-05-13
申请人： C C ROMBOUTS KUNSTSTOF TECHNIEK HOLDING B V
发明人： ROMBOUTS CORNELIS CHRISTIANUS
IPC分类号： F16L59/20 , F16L47/22
CPC分类号： F16L59/20 , F16L47/22
摘要： A method for counteracting axial migration of moisture migration in a foam insulation layer (4) of a thermally insulated transport tube (1), which method comprises the steps of: - providing an area (L) of the transport tube where the foam insulation layer is absent; - arranging a shrinking sleeve (40) around said area, wherein the shrinking sleeve (40) has a larger axial length than said area and overlaps at each side with an outer tube (2) extending around the foam insulation layer; - making said shrinking sleeve shrinking by heating, so that the axial ends of the shrinking sleeve clamp around said outer tube; - if desired, welding of the axial ends of the shrinking sleeve to said outer tube; - filling the annular space defined between the transport tube and the shrinking sleeve with a hardening substance, wherein the material of this substance is chosen to be, at least after hardening, watertight and adhere well to the transport tube, to the shrinking sleeve, and to the foam insulation layer.
摘要翻译：一种用于抵消绝热输送管（1）的泡沫绝缘层（4）中水分迁移的轴向迁移的方法，该方法包括以下步骤： - 提供输送管的区域（L），其中泡沫绝缘层缺席; - 围绕所述区域布置收缩套筒（40），其中所述收缩套筒（40）具有比所述区域更大的轴向长度并且在每一侧与在所述泡沫绝缘层周围延伸的外管（2）重叠; - 使所述收缩套筒通过加热收缩，使得收缩套筒的轴向端部围绕所述外管夹紧; - 如果需要，将收缩套筒的轴向端部焊接到所述外管上; - 用硬化物质填充在输送管和收缩套筒之间限定的环形空间，其中该物质的材料至少在硬化后水密并且很好地粘附到输送管，收缩套筒上，以及到泡沫绝缘层。

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