On-line test device for unsteady friction of pipe pigs

A technology of online testing and experimental equipment, which is applied in the direction of measuring equipment, testing of machine/structural components, testing of mechanical components, etc., and can solve problems such as distortion of unsteady-state friction model of pigs

Active Publication Date: 2018-04-17
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The invention provides an on-line test device for unsteady-state friction of a pipe pig to solve the distortion problem of the unsteady-state friction model of a pipe pig

Method used

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  • On-line test device for unsteady friction of pipe pigs
  • On-line test device for unsteady friction of pipe pigs
  • On-line test device for unsteady friction of pipe pigs

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Embodiment Construction

[0039] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the present invention will now be described with reference to the accompanying drawings.

[0040] Such as figure 1 As shown, the present invention proposes a pig unsteady-state friction on-line test experimental device 100, which is used to test the unsteady-state friction resistance of the cup when the pig is running. The unsteady-state friction online test of the pig is The experimental setup includes:

[0041] bracket 1;

[0042] The horizontal simulated pipeline 2 is horizontally set on the support 1, such as Figure 4 As shown, the horizontal simulated pipeline 2 includes: a receiving and receiving ball section 21, a transition section 22 and a main pipeline section 23 connected in sequence and the pipe diameter becomes smaller in turn;

[0043] The pig 4 is slidably arranged in the horizontal simulated pipeline 2, and the pig 4 includes: a pig conn...

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Abstract

The present invention provides a non-steady state friction on-line testing experiment device of a pig. The device provided by the invention comprises: a support and a horizontal simulation pipeline arranged on the support. The horizontal simulation pipeline includes: a transmitter-receiver section, a transition section and a main pipe section which are connected in order and are progressively smaller in the diameters of the pipes. The pig is able to be slidingly arranged in the horizontal simulation pipeline. The pig includes: a pig connection shaft, and packing leather arranged on the pig connection shaft; a tension-compression sensor connected to the pig connection shaft; a servo electric sliding table connected with the pig connection shaft and arranged on the support; and an encoder connected with the servo electric sliding table. According to the invention, the changing rule of the non-steady state friction suffered by packing leather when the pig is pigged. Besides, the pigging process may be observed in an on-line mode, and the influences of pig kinetic parameters on the pigging effect may be evaluated.

Description

technical field [0001] The invention relates to the field of pipeline pigging and detection, in particular to an on-line test device for unsteady friction of a pig. Background technique [0002] In recent years, with the growth of China's proven oil and gas reserves and the improvement of the overall national oil and gas supply demand, the construction mileage of oil and gas pipelines is constantly increasing. While pipeline transportation has been widely used across the country due to its irreplaceable advantages, the safety and maintenance of pipeline transportation has gradually received attention. [0003] At the beginning of the pipeline construction, it is necessary to use the pig to remove the pipeline liquid and the impurities left by the pipeline construction; after the long-term operation of the pipeline, it is necessary to use the pig to remove the wax deposit, liquid accumulation and other dirt formed by the long-term transportation medium inside the pipeline . ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 朱霄霄王威张仕民刘书海
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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