Thickness measuring system for inner wall anticorrosive coating of small diameter pipe

A technology of anti-corrosion coating and thickness measurement, applied in the direction of electric/magnetic thickness measurement, measuring device, electromagnetic measuring device, etc., can solve the problems of battery energy limitation, inability to detect long-distance pipelines, etc., achieve high data processing accuracy and reduce data The effect of communication distance and low power consumption

Active Publication Date: 2019-03-22
TECHN MONITORING CENT OF CHANGQING PETROLEUM EXPLORATION BUREAU
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AI Technical Summary

Problems solved by technology

Most of the existing detection technologies are suitable for the detection of coatings on the inner wall of large pipes, and there are very few detections of coatings on small pipes. Moreover, the small diameter detection robot is limited by the battery energy, and the stroke is less than 800m. detection

Method used

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  • Thickness measuring system for inner wall anticorrosive coating of small diameter pipe
  • Thickness measuring system for inner wall anticorrosive coating of small diameter pipe
  • Thickness measuring system for inner wall anticorrosive coating of small diameter pipe

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Embodiment Construction

[0060] Such as figure 1 , figure 2 , Figure 8 with Picture 9 As shown, the present invention includes a first measurement vehicle 1, a second measurement vehicle 2, a first signal processing vehicle 3, a second signal processing vehicle 4, and a third measurement vehicle that are coaxially connected in the small-diameter pipe 63 from front to back. Car 5, power conversion car 6, battery car 7, and electromagnetic positioning car 8. The two adjacent car bodies are connected by a hose 9. The electromagnetic positioning car 8 is provided with a mileage metering mechanism 10 at one end away from the battery car 7. A flange 64 is installed on the input port of the caliber pipe 63. One end of the flange 64 away from the small-caliber pipe 63 is equipped with a high-pressure air pipe 65 connected to the small-caliber pipe 63. The first measuring vehicle 1, the second measuring vehicle 2 and The third measuring vehicle 5 includes a hollow structure measuring vehicle body 20 and a sen...

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Abstract

The invention discloses a thickness measuring system for an inner wall anticorrosive coating of a small diameter pipe. The system comprises a first measuring vehicle, a second measuring vehicle, a first signal processing vehicle, a second signal processing vehicle, third measuring vehicles, a power conversion vehicle, a battery vehicle and an electromagnetic positioning vehicle coaxially connectedin the small-diameter pipe from front to back, two adjacent vehicle bodies are connected by a hose, the electromagnetic positioning vehicle is provided with a mileage measuring mechanism at one end away from the battery vehicle, a flange is mounted on an input port of the small-diameter pipe, and a high-pressure gas pipe communicated with the small-diameter pipe is installed at one end of the flange away from the small-diameter pipe. The system has novel design, the signal processing vehicle is inserted between the three measuring vehicles, the signal transmission length and signal interference are reduced, the mileage measuring mechanism is used for recording the traveling mileage of a vehicle body, an external high-pressure gas source is used for pushing the I-shaped vehicle body, the power consumption of the vehicle body itself to install a driving device is reduced, and the duration of a battery car is prolonged.

Description

Technical field [0001] The invention belongs to the technical field of coating thickness measurement on the inner wall of a small-diameter pipeline, and specifically relates to a system for measuring the thickness of an anticorrosive coating on the inner wall of a small-diameter pipeline. Background technique [0002] Pipeline anti-corrosion technology is a protection technology that prevents pipelines from being corroded by transport media (oil, natural gas, etc.). Most of the oil and gas being transported are corrosive, and the inner wall of the pipeline will be corroded by long-term contact with these corrosive media. Once the tube wall is corroded too thin, it will not be able to withstand pressure, or even be corroded and perforated, causing oil and gas leakage, which will not only interrupt transportation, but also pollute the environment, even cause fires, and cause damage to people and property. Since most of the current transportation pipelines are steel, anticorrosion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/06G01B7/06
CPCG01B7/105G01B11/0616
Inventor 梁桂海林罡陈安德刘峰盛哲刘小齐杨虎杨永霞徐鹏张腾飞
Owner TECHN MONITORING CENT OF CHANGQING PETROLEUM EXPLORATION BUREAU
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