Multi-layer protection type oil delivery pipe

• Main Authors: LIN YI, HAN SHIN-YOUNG
• Format: Patent
• Language: Chinese; English
• Published: 13.06.2023
• Subjects: 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; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model belongs to the technical field of petroleum pipelines, and particularly relates to a multi-layer protection type petroleum delivery pipe which comprises an inner delivery pipe, and the outer surface of the inner delivery pipe is movably connected with a plurality of buffer mechanisms through movable shafts and installation lugs. An outer conveying pipe is movably connected to the ends, away from the inner conveying pipe, of the multiple buffering mechanisms through movable shafts and mounting lugs jointly, a buffering cavity is formed between the outer conveying pipe and the inner conveying pipe, a protective sleeve is fixedly connected to the outer surface of the outer conveying pipe, and a first movable groove is formed in the protective sleeve; the upper portion and the lower portion of the inner wall of the first movable groove are fixedly connected with a plurality of first springs, and the ends, away from the inner wall of the first movable groove, of the first springs are jointly and