A pipeline corrosion detector and its detection method

A detection instrument and pipeline technology, applied in the direction of instruments, measuring devices, scientific instruments, etc., to achieve the effect of convenient operation, simple data processing process, and wide application range

CN104132906BInactive Publication Date: 2017-01-04CHINA UNIV OF PETROLEUM (BEIJING) +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-01-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a pipeline corrosion detector and a detection method thereof. Among them, the pipeline corrosion detector includes: pipeline crawler, multiple terahertz detection and receiving devices, terahertz detection system, data processing system and corrosion degree display panel; among them, the pipeline crawler will carry multiple terahertz detection and receiving devices. The multiple probes of the device are delivered to the inside of the pipeline to be inspected, and the terahertz detection and receiving device receives the laser light emitted by the terahertz detection system, excites the terahertz wave, and transmits the terahertz signal reflected from the inner surface of the pipeline to be inspected to the terahertz detection system , the terahertz detection system generates terahertz spectral information according to the terahertz signal reflected by the inner surface of the pipeline to be inspected and transmits it to the data processing system. The data processing system processes the terahertz spectral information to generate the corresponding relationship between the terahertz spectral information and the degree of corrosion. And displayed on the corrosion degree display panel.
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Description

technical field

[0001] The invention relates to the field of pipeline corrosion detection, in particular to a device and method for detecting pipeline corrosion, specifically a detector and a detection method for detecting pipeline corrosion degree based on terahertz time-domain spectroscopy technology. Background technique

[0002] As the main artery of the oil industry, pipelines are extremely important for the transportation of oil and natural gas. However, during the service process, the pipeline will fail due to corrosion and other reasons, such as perforation and fracture, causing oil and gas leakage, and even catastrophic accidents such as combustion and explosion. It is the most dangerous cancer in the use of pipelines. There are many reasons for pipeline failure, which cannot be predicted and avoided. Therefore, it is particularly important for oil and gas transportation projects to regularly inspect pipelines, obtain the service status of pipelines, find failure po...

Examples

Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] figure 1 It is a schematic structural diagram of a pipeline corrosion detector according to an embodiment of the present invention. As shown in the figure, the pipeline corrosion detector of this embodiment includes a pipeline crawler 101 , multiple terahertz detection and receiving devices 102 , a terahertz detection system 103 , a data processing system 104 and a corrosion degree display panel 105 .

[0034] Wherein, the top of the pipeline crawler 1...