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Patent Searching and Data


Title:
MAGNETIC FLUX LEAKAGE PIG
Document Type and Number:
WIPO Patent Application WO/2019/132219
Kind Code:
A1
Abstract:
A magnetic flux leakage PIG according to one embodiment of the present invention comprises: a body formed to move in the gas flow direction inside a pipe; and multiple magnetizing modules coupled to the outer peripheral surface of the body along the circumferential direction thereof. Each of the magnetizing modules comprises: a support coupled to the body; a module body configured to come in contact with the inner peripheral surface of the pipe; a pair of levers which are axially coupled to the module body at one end of each thereof and to opposite ends of the support at the other end of each thereof such that the magnetizing module contracts or expands depending on a change in the diameter of the pipe, and which can be rotated by the bidirectional rotation of each axis-coupling portion; and a suspension portion comprising: an elastic support body having one surface fixed on the support and elastically supporting the levers; and a pair of first rollers coupled to opposite ends of the elastic body and in contact with the levers, respectively.

Inventors:
YOO, Hui Ryoung (405-902, 71 Geumgok-ro 73beon-gil,,Gwonseon-gu, Suwon-si, Gyeonggi-do, 16382, KR)
CHO, Sung Ho (205-901, 210 Gwiin-ro,,Dongan-gu, Anyang-si, Gyeonggi-do, 14103, KR)
KIM, Dong Kyu (101-504, 26 Hyohaeng-ro 291beon-gil,,Hwaseong-si, Gyeonggi-do, 18338, KR)
KIM, Sang Hyuk (808-104, 138 Yanghyeon-ro,,Bundang-gu, Seongnam-si, Gyeonggi-do, 13567, KR)
KIM, Dae Kwang (2-507, 19 Inju-daero 676beon-gil,,Namdong-gu, Incheon, 21579, KR)
KIM, Jae Jun (203-404, 161-12 Seosuwon-ro,,Gwonseon-gu, Suwon-si, Gyeonggi-do, 16636, KR)
YANG, Seung Ung (1-28, Mojeong 4-gil Ochang-eup,,Cheongwon-gu, Cheongju-si, Chungcheongbuk-do, 28128, KR)
Application Number:
KR2018/013161
Publication Date:
July 04, 2019
Filing Date:
November 01, 2018
Export Citation:
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Assignee:
KOREA GAS CORPORATION (120, Cheomdan-ro,Dong-gu, Daegu, 41062, KR)
International Classes:
F16L55/28; H01F7/02; H01F13/00; F16L101/30
Foreign References:
CN101819181A2010-09-01
CN204629109U2015-09-09
KR101649319B12016-08-19
KR200479032Y12015-12-10
KR101491416B12015-02-06
Attorney, Agent or Firm:
LEE & PARK (6th Fl, 112 Banpo-Daero,,Seocho-gu, Seoul, 06648, KR)
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