To maintain the connection of piping with respect to the total weight of a long-length pipe when connecting the piping on board.SOLUTION: A piping connecting mechanism of a long-length pipe has a plurality of pieces of piping, and a connecting pipe for covering an outer face of a portion including one end of each piping, and fixed to the outer face of the piping so as to extend from the end of the piping. A minimum inside diameter portion of the connecting pipe has an inside diameter dimension smaller than an outside diameter of the piping to be connected within a temperature range of 80°C to 50°C in a temperature, and by heating and thermally expanding the minimum inside diameter portion of the connecting pipe within a temperature range higher than 50°C and equal to 450°C or lower in a temperature, the inside diameter becomes larger than the outside diameter of the piping to be connected, and an inside diameter dimension is set so that the piping to be connected can be fit to the connecting pipe. Heat-treated martensitic steel, austenitic stainless steel, or austenite-ferritic stainless steel is employed to the connecting pipe.SELECTED DRAWING: Figure 2

    【課題】船上で配管を接続する際、長尺管の総重量に対して配管の接続を維持する。【解決手段】長尺管の配管接続機構は、複数の配管と、各配管の一方の端を含んだ部分の外面を覆い、各配管の前記端から延長するように、各配管の外面に固定された接続管とを有する。前記接続管の最小内径部分は、温度−80℃〜50℃の温度範囲で、接続しようとする配管の外径よりも小さい内径寸法を有し、温度50℃より高く450℃以下の温度範囲で前記接続管の前記最小内径部分を加熱して熱膨張させることにより、前記内径寸法は前記接続しようとする配管の外径よりも大きくなって前記接続しようとする配管が前記接続管に嵌合できるように、前記内径寸法は設定されている。前記接続管には、調質マルテンサイト鋼、オーステナイト系ステンレス鋼、あるいはオーステナイト・フェライト系ステンレス鋼が用いられる。【選択図】図2


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    Title :

    PIPING CONNECTING MECHANISM, PIPING CONNECTING METHOD, AND PIPING CONNECTING DEVICE


    Additional title:

    配管接続機構、配管接続方法、及び配管接続装置


    Contributors:

    Publication date :

    2021-04-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16L PIPES , Rohre / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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