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    • 21. 发明专利
    • Reversed lining method for pipe
    • 反向衬管方法
    • JP2005180606A
    • 2005-07-07
    • JP2003423124
    • 2003-12-19
    • Nippon Steel Corp新日本製鐵株式会社
    • SHIBATA SHUNJIROTAKEUCHI TAKASHI
    • E03F3/06E03F7/00F16L1/00F16L55/16F16L55/18
    • PROBLEM TO BE SOLVED: To easily and surely execute lining work in a simple equipment structure regarding a slant pipe or the like which is difficult to construct. SOLUTION: In a reversed lining method for impregnating hardening resin to a circular soft lining material 10 with a diameter equivalent to the inner diameter of the pipe and putting a lining into the inside of the pipe 1 while inserting into the pipe 1 and reversing the lining with fluid pressure, an airtight cover 19 having a venthole 18 with a valve 21 is installed in advance on an end of the pipe at a reaching side. Then, while injecting a liquid 29 for reversing into the pipe at an inserting side at the time of insertion of the lining material and also injecting a gas 28 for back pressure into the pipe at a back-pressure side located in front of a reversing portion 12 from the reversing portion 12 via the venthole 18 or adjusting pressure in the pipe at a back-pressure side by discharging the gas 28 at a back-pressure side in the pipe at a back-pressure side, the lining material 10 is reversed and moved forward. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了容易且可靠地执行关于难以构造的倾斜管等的简单设备结构的衬里工作。 解决方案:在将硬化树脂浸渍到直径等于管内径的圆形软内衬材料10的同时插入管1中并将衬垫放入管1的内部的反向衬里方法中, 用流体压力反转衬里,具有带有阀21的通气孔18的气密盖19预先在到达侧的管的一端安装。 然后,在插入衬里材料时,在插入侧注入用于倒转的液体29,并且在位于反转部分的前方的背压侧将注入用于背压的背压的气体28注入到管中 12通过通气孔18从倒车部分12或通过在背压侧排出管道的背压侧的气体28在背压侧调节管道中的压力,衬里材料10反转, 向前移动 版权所有(C)2005,JPO&NCIPI
    • 23. 发明专利
    • MULTIPLE PIPE
    • JPH1061836A
    • 1998-03-06
    • JP23995496
    • 1996-08-23
    • NIPPON STEEL CORP
    • OKAWA DAIICHITAKEUCHI TAKASHIMATSUDA EIKO
    • F16L7/00F16L9/19
    • PROBLEM TO BE SOLVED: To miniaturize a casing pipe when a number of small pipes are contained and disposed in the casing pipe in a box cross section, decrease the thickness of the casing pipe by preventing concentration of a load in the axial direction exerted on the casing pipe during expansion and contraction of the small pipes, and reduce a material cost and a work executing cost. SOLUTION: In a multiple pipe formed such that a number of small pipes 1 are contained and disposed in a casing pipe 2 in a box cross section, the small pipes 1 are disposed in the casing pipe 2 such that the mutual positions of the connection couplings 3 of the adjoining small pipes are displaced in the axial direction of the pipe and the mutual positions of the expansion couplings 4 of the adjoining small pipes are displaced in the axial direction of the pipe. Fixing spots where the small pipes 1 are fixed at the casing pipe 2 in the vicinity of the expansion coupling 4 are dispersed in a plurality of fixing parts, and the small pipe 1 is fixed by the fixing part (the fixing plate).