Title:
AN INNER DETECTING DEVICE FOR SUBSEA OIL AND GAS PIPELINE
Document Type and Number:
WIPO Patent Application WO/2015/074456
Kind Code:
A1
Abstract:
An inner detecting device for subsea oil and gas pipeline includes a support shaft (2) defining a sealed chamber therein; a packer cup coupled to the support shaft; a hinge assembly (3) coupled to the support shaft (2), swinging with respect to the support shaft (2) in a radial direction and sliding with respect to the support shaft (2) in an axial direction; a magnetic detector (5) connected to the hinge assembly (3) to move with respect to the support shaft (2) in the radial and axial directions, and the magnetic detector (5) tending to move away from the support shaft (2) in the radial direction; a battery pack (7); an electric recorder (8) electrically connected to the battery pack (7); and a mileage recorder (10) recording a travel distance of the inner detecting device within the pipeline.
Inventors:
HUANG SONGLING (CN)
ZHAO WEI (CN)
WANG SHEN (CN)
YU XINJIE (CN)
CHEN JUNJIE (CN)
WEI ZHENG (CN)
ZHAO WEI (CN)
WANG SHEN (CN)
YU XINJIE (CN)
CHEN JUNJIE (CN)
WEI ZHENG (CN)
Application Number:
PCT/CN2014/086655
Publication Date:
May 28, 2015
Filing Date:
September 16, 2014
Export Citation:
Assignee:
UNIV TSINGHUA (CN)
International Classes:
F16L55/32; F16L55/48; G01B7/04; G01N27/82; F16L101/30
Foreign References:
| CN1942762A | 2007-04-04 | |||
| CN101324477A | 2008-12-17 | |||
| CN103235034A | 2013-08-07 | |||
| US5864232A | 1999-01-26 | |||
| CN103604022A | 2014-02-26 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (Trade Building Zhaolanyuan, Tsinghua University, Qinghuayuan, Haidian District, Beijing 4, CN)
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