METHOD AND DEVICE FOR SEALING END OF DOUBLE PIPE FOR GAS PIPING

PROBLEM TO BE SOLVED: To provide a method and a device for sealing an end of a double pipe for a gas piping having a short construction period and a low manufacturing/construction cost by using a sheet provided with a through-hole which can be freely opened and closed with a plug. SOLUTION: The meth...

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Bibliographische Detailangaben
Hauptverfasser:	TANAKA KOICHI, YAMADA MITSUO, KURONO TADAHARU, NAKAMURA ATSUSHI, ITO HIROSHI, KOJIMA KENICHI, WATABE HIDEKI, SUTANI YOSHIHISA
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MEASURING MECHANICAL ENGINEERING PHYSICS PIPE-LINE SYSTEMS PIPE-LINES PIPES STORING OF DISTRIBUTING GASES OR LIQUIDS SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method and a device for sealing an end of a double pipe for a gas piping having a short construction period and a low manufacturing/construction cost by using a sheet provided with a through-hole which can be freely opened and closed with a plug. SOLUTION: The method comprises the steps of surrounding an outer periphery of the vicinity of the end of a sleeve pipe 1 and a part of an outer periphery of a gas pipe 2 by a sheet 31 having flexibility and airtightness which comprises the through-hole 33 and the plug 34 capable of freely opening and closing the through-hole 33 and is provided with an airtight fastener capable of freely fastening mutually on both sides, forming a tubular body by fastening the airtight faster, and tying the vicinity of one end of the tubular body to the sleeve pipe 1 and the vicinity of the other end of the tubular body to the gas pipe 2, The plug 34 is opened and a gas leakage detection means is inserted into the through-hole 33 in a state where the clearance between the end of the sleeve pipe 1 and the periphery of the gas pipe 2 is sealed, thereby enabling detection of the presence or absence of the gas leakage from the gas pipe 2.