Electrofusion of pipe liners
    2.
    发明授权

    公开(公告)号:US11566745B2

    公开(公告)日:2023-01-31

    申请号:US16955743

    申请日:2018-12-17

    申请人: Acergy France SAS

    摘要: A method of joining together liner sections within a polymer-lined pipe energises an induction coil inside the pipe to spot-heat part of a circumferential interface between the liner sections. This melts and fuses the polymer material locally. The induction coil is then moved along the interface to heat other parts of the interface successively above the melting temperature. An apparatus for performing the method has a power supply for energising the induction coil and a drive system for moving the energised induction coil relative to a body of the apparatus. The apparatus may be configured as a carriage that is movable along the pipe.

    DETERMINING THERMAL CONDITIONS IN A PIPELINE

    公开(公告)号:US20220397241A1

    公开(公告)日:2022-12-15

    申请号:US17348486

    申请日:2021-06-15

    IPC分类号: F17D5/06 F16L59/14 G01M99/00

    摘要: Techniques for determining a thermal condition of a pipeline include identifying a pipeline that carries a first fluid at a first temperature that includes a tubular conduit that includes a bore that carries the first fluid, and a layer of insulation installed over the tubular conduit; circulating a second fluid at a second temperature from a bypass conduit that is fluidly coupled to the tubular conduit through the layer of insulation into the bore; based on circulating the second fluid into the bore, detecting a thermal gradient between the first fluid carried in the bore and the tubular conduit or the layer of insulation at a particular location of the pipeline; and based on the detected thermal gradient, determining a presence of at least one of water or water vapor between the tubular conduit and the layer of insulation at the particular location of the pipeline.

    THROUGH-AIR APPARATUS TO REDUCE INFILTRATION OF AMBIENT AIR

    公开(公告)号:US20220380979A1

    公开(公告)日:2022-12-01

    申请号:US17335365

    申请日:2021-06-01

    申请人: Valmet AB

    摘要: A through-air apparatus for drying or bonding paper, tissue, or nonwoven webs is provided. The apparatus includes a web-carrying structure configured to move and a first component having at least one sealing element adjacent the web-carrying structure, where the sealing element is configured to reduce the infiltration of ambient air into the through-air apparatus. The apparatus also includes at least one channel configured to direct air to the sealing element to reduce the infiltration of ambient air into the through-air apparatus. A method of operating a through-air apparatus for drying or bonding paper, tissue, or nonwoven webs is also provided. The method includes directing air to a sealing element to reduce the infiltration of ambient air into the through-air apparatus.

    PIPE COMPRESSION EQUIPMENT
    5.
    发明申请

    公开(公告)号:US20220363419A1

    公开(公告)日:2022-11-17

    申请号:US17872671

    申请日:2022-07-25

    申请人: JOHNS MANVILLE

    摘要: A system for compressing and packing pipe insulation includes a compression member that is movable along a first axis to compress pieces of pipe insulation. A stacking bay includes opposing walls that are spaced apart from one another. At least one of the two opposing walls is movable relative to the other of the two opposing walls along a second axis to adjust a lateral distance between the opposing walls to accommodate an increasing size of the pieces of pipe insulation along the second axis. The first axis is generally orthogonal to the second axis. A packing member that applies a force along a third axis to the pieces of pipe insulation after being compressed. The third axis is generally orthogonal to the first and second axes. The first axis is generally orthogonal to the second axis. The compression member is aligned with a space formed between the opposing walls.

    HEATED PIPELINE WITH HIGH HEATING EFFICIENCY

    公开(公告)号:US20220299148A1

    公开(公告)日:2022-09-22

    申请号:US17619061

    申请日:2019-06-20

    申请人: TotalEnergies SE

    发明人: Ivo CONRADI

    IPC分类号: F16L53/38 F16L59/14

    摘要: The heated pipeline comprises an inner pipe intended to convey a fluid, and an outer coating made of a thermal insulating material and covering the inner pipe. The outer coating comprises at least one duct delimited, in a transverse plane, by a closed outline entirely defined in the thermal insulating material, each duct housing a respective heating element.

    FABRIC JACKET TO PREVENT NONMETALLIC EQUIPMENT FROM EXTREME HEAT, EXTERNAL DAMAGE AND FIRE

    公开(公告)号:US20220235896A1

    公开(公告)日:2022-07-28

    申请号:US17155971

    申请日:2021-01-22

    IPC分类号: F16L59/02 F16L59/14

    摘要: A protective fabric jacket for placement on an object to be protected from excessive heat includes a first layer; a second layer; and an intermediate spacer fabric layer that is disposed between the first layer and the second layer. The first and second layers are attached to the intermediate spacer fabric layer to form a layered structure. The intermediate spacer fabric layer comprises a flexible honeycomb or octagonal shaped spacer fabric that has a plurality of cells defined therein. The protective fabric jacket also includes a settable material that disposed within the cells and includes a cementitious mixture and one or more organic polymers and is settable to a hardened material.