Pipeline inspection device and pipeline inspection system

Patent metadata

Field	Value
Publication number	US-9709532-B2
Application number	US-201314427626-A
Country	US
Kind code	B2
Filing date	Jul 17, 2013
Priority date	Sep 14, 2012
Publication date	Jul 18, 2017
Grant date	Jul 18, 2017

Abstract

There is provided a pipeline inspection device including: a body part contacting a pipeline and accommodating the pipeline; a coupling part coupled to the body part to enclose the pipeline; and a sensor part including a sensor on at least one of one side of the body part and one side of the coupling part which are in contact with the pipeline to inspect an internal state of the pipeline. The pipeline inspection device according to exemplary embodiments is capable of inspecting pipelines without increasing a gap between the pipelines even in a case in which the gap therebetween is relatively narrow, and is capable of readily and rapidly inspecting a large area of pipelines.

First claim

The invention claimed is:

1. A pipeline inspection device comprising:
a body part accommodating the pipeline;
a coupling part coupled to the body part to enclose the pipeline; and
a sensor part including a sensor on at least one of one side of the body part and one side of the coupling part to inspect an internal state of the pipeline,
wherein the coupling part includes:
an opening-closing member which is partially opened to allow the pipeline to be inserted, and has a connector on one side of the opening-closing member;
an extension member which is hinge-coupled to another side of the opening-closing member, and extends from the another side of the opening-closing member to penetrate through the body part and allow the opening-closing member to move vertically;
a fixing member fastened to an end portion of the extension member to fix the extension member to the body part; and
an elastic body mounted on the extension member and arranged between the body part and the fixing member.

2. The pipeline inspection device of claim 1 , wherein the sensor part includes a plurality of sensors provided on the pipeline in a symmetrical manner.

3. The pipeline inspection device of claim 1 , wherein the sensor is provided as a piezoelectric sensor to inspect the interior of the pipeline using ultrasonic guided waves.

4. A pipeline inspection system comprising:
the pipeline inspection device of claim 1 ;
a processing unit processing signals collected by the pipeline inspection device to determine normality or abnormality in the interior of the pipeline; and
a display unit displaying the results of the processing unit.

Assignees

• Korea Electric Power Corp
• Korea East-West Power Co Ltd

Inventors

• Gil Doo-Song
• Ahn Yeon-Shik
• Jung Gye-Jo
• Park Sang-Ki

Classifications

• F16L2101/30

  Inspecting, measuring or testing · CPC title

• G01N2291/0258

  Structural degradation, e.g. fatigue of composites, ageing of oils · CPC title

• F16L55/26

  Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means · CPC title

• G01N2291/0421

  Longitudinal waves · CPC title

• G01N2291/0289

  Internal structure, e.g. defects, grain size, texture · CPC title