Overhead pipe wall thickness corrosion scanning and detecting system

An overhead pipeline and detection system technology, which is applied in the direction of electric/magnetic thickness measurement, electromagnetic measurement device, material magnetic variable, etc., can solve the problems of high operating level requirements for detection personnel, unsuitable for large-scale promotion and application, and high price

Active Publication Date: 2014-01-15
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
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Problems solved by technology

However, the related equipment of these technologies is expensive, and requires a high level of operation of the testing personnel, which is not suitable for large-scale promotion and application.

Method used

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  • Overhead pipe wall thickness corrosion scanning and detecting system
  • Overhead pipe wall thickness corrosion scanning and detecting system
  • Overhead pipe wall thickness corrosion scanning and detecting system

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Embodiment Construction

[0028] In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments are listed below and described in detail in conjunction with the accompanying drawings.

[0029] like figure 1 as shown, figure 1 It is a structural diagram of the overhead pipeline wall thickness corrosion scanning detection system of the present invention. The overhead pipeline wall thickness corrosion scanning detection system consists of a transmitting clamp 1 , a receiving clamp 2 , a distance controller 3 and an operation box 4 . The distance controller 3 is the connection between the transmitting clamp 1 and the receiving clamp 2, and controls the distance between the transmitting clamp 1 and the receiving clamp 2. The operation box 4 is connected to the transmitting clamp 1 and the receiving clamp 2, and transmits a current signal to the transmitting clamp 1, collects the induced current signal generated by the receiving cla...

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Abstract

The invention provides an overhead pipe wall thickness corrosion scanning and detecting system which comprises a transmission clamp, a receiving clamp, a distance controller and an operation box. The transmission clamp is connected with the receiving clamp through the distance controller, the distance between the transmission clamp and the receiving clamp is controlled by the distance controller, the operation box is connected to the transmission clamp and the receiving clamp, current signals are transmitted to the transmission clamp, induced current signals generated by the receiving clamp are collected, changes of the induced current signals are analyzed to reflect pipe body defects of an overhead pipe, the transmission clamp and the receiving clamp are composed of solenoids respectively, the curvature radii of the two semi-circular solenoids are same, and the solenoids are filled with ferromagnetic media. By means of the overhead pipe wall thickness corrosion scanning and detecting system, overall scanning and detecting on the overhead pipe can be achieved, interference of outer coatings of the overhead pipe is avoided, and rapid quantification and rapid positioning on corrosion defects of the overhead pipe are achieved.

Description

technical field [0001] The invention relates to a detection device for overhead metal pipelines, in particular to a scanning detection system for wall thickness corrosion of overhead pipelines. Background technique [0002] At present, the remaining wall thickness of overhead pipelines in China is mainly detected by ultrasonic spot checks. The selection of testing points is usually determined by the inspectors according to the site conditions. However, there is often no necessary relationship between the corrosion of the inner and outer walls of the pipeline. The thickness measurement method cannot truly reflect the real remaining wall thickness of the pipeline, which is likely to cause missed detection of defects; for pipelines with an overcoat, the ultrasonic thickness measurement method needs to remove the overcoat of the pipeline before implementation, which brings additional costs to the user. economic burden. [0003] In foreign countries, a lot of research has been c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/06G01N27/82
Inventor 王安泉陈健飞盛华徐晓光
Owner CHINA PETROLEUM & CHEM CORP
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