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    HEAT-INSULATED PIPE AND PIPELINE SECTION WITH HYDROPROTECTION ALONG THE EXTERNAL SURFACE AND ALONG THE ENDS
    3.
    发明公开
    HEAT-INSULATED PIPE AND PIPELINE SECTION WITH HYDROPROTECTION ALONG THE EXTERNAL SURFACE AND ALONG THE ENDS 审中-公开
    与湿气保护沿着外表面沿边热绝缘管和管段

    公开(公告)号：EP3023684A4

    公开(公告)日：2017-03-01

    申请号：EP14883841

    申请日：2014-02-28

    申请人： OBSCHESTVO S OGRANICHENNOY OTVETSTVENNOSTIYU SMIT-YARTSEVO

    发明人： PAVLYUK EVGENIY SERGEEVICH ,  NARKEVICH SERGEY LEONIDOVICH

    IPC分类号： F16L59/14 ,  F16L9/18 ,  F16L59/16 ,  F16L59/20

    CPC分类号： F16L59/143 ,  F16L59/166 ,  F16L59/20

    摘要： A heat-insulated pipe and a separate hermetically sealed pipeline section with hydroprotection along the external surface and along the ends, which section is formed by the heat-insulated pipe, which comprises an internal working pipe which is arranged in an external hydroprotected pipe casing so as to form a "pipe in pipe" construction, a heat insulation layer filling an inter-pipe space between the above-mentioned pipes, and also end plugs, each of which has an axial opening to receive the working pipe and is nondetachably and hermetically connected to the external hydroprotected pipe casing. Openings which are usable in the manufacturing of the heat-insulated pipe are formed in each end plug, at least one of which openings is intended for the pouring of a foaming heat insulation composition and at least one opening, which is covered by a perforated section, is intended for communication of the inter-pipe cavity with the heat insulation layer with the external environment, furthermore, at least one further opening is formed in the plug and is intended for guiding out the elements of a system for monitoring the state of the heat insulation layer, wherein all of the openings in the end plugs can be closed with stoppers.

    METHOD FOR PRODUCING INSULATED PIPES AND SHAPED PRODUCTS FOR PIPELINES
    4.
    发明公开
    METHOD FOR PRODUCING INSULATED PIPES AND SHAPED PRODUCTS FOR PIPELINES 有权
    工艺用于生产管线隔离管，导管体

    公开(公告)号：EP2988050A4

    公开(公告)日：2016-12-07

    申请号：EP13900354

    申请日：2013-12-24

    申请人： OBSCHESTVO S OGRANICHENNOY OTVETSTVENNOSTIYU SMIT-YARTSEVO

    发明人： PAVLYUK EVGENIY SERGEEVICH ,  NARKEVICH SERGEY LEONIDOVICH

    IPC分类号： F16L59/14 ,  F16L9/18

    CPC分类号： F16L59/143

    摘要： The method includes concentrically positioning a working pipe having centering elements inside a casing pipe, forming a "pipe-in-pipe" construction, hermetically sealing the ends of the "pipe-in-pipe" construction using end plugs, feeding a foaming thermal insulation material through a servicing aperture in one of the plugs, hermetically sealing the servicing aperture of the plug after finishing the feeding of the foaming material, and discharging gases which create excess pressure in the annular cavity by means of a perforated area. Carrying out the method allows for: reducing the number of operations in the technical process; eliminating losses of a liquid reactive polyurethane foam composition from the inter-pipe space by means of servicing gaps; decreasing the number of defective finished products by means of creating optimal conditions for forming a thermal insulation layer; providing for the stable quality of the finished products by means of producing thermally insulated pipes having a calculated thermal conductivity coefficient.