Pipeline inner detector loop test platform and test method thereof

A technology of internal detector and loop test, applied in the direction of material magnetic variable, etc., can solve the problems of insufficient height, insufficient wear resistance, fault detection accuracy and positioning accuracy, etc., so as to reduce the probability of failure and meet the requirements of use effect of demand

Pending Publication Date: 2019-04-30
CNOOC ENERGY TECH & SERVICES +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, there is no special land-based experimental test platform for submarine pipelines that can be used for internal detector testing, resulting in insufficient stability, defect detection accuracy, and positioning accuracy of the internal detector after it is put into

Method used

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  • Pipeline inner detector loop test platform and test method thereof
  • Pipeline inner detector loop test platform and test method thereof
  • Pipeline inner detector loop test platform and test method thereof

Examples

Experimental program
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Embodiment 1

[0031] Such as figure 1 As shown, the present preferred embodiment provides a loop test platform for detectors in pipelines, the test platform includes a pipeline 2 and a power system with a defective sample 1 preset on the hollow pipe wall, and the outside of the pipe wall of the pipeline 2 is coated with Covered with anti-corrosion layer. The power system includes traction automatic control device 3, working condition experiment device, electrical power supply device and instrument control device.

[0032] Wherein, traction automatic control device 3 is used for providing traction force for inner detector, preferably, traction automatic control device 3 comprises winch, and winch provides inner detector and carries out traction. The working condition experiment device is used to fill the pipeline 2 with liquid or gas to test the working environment in the submarine pipeline. The electrical power supply unit supplies power to devices within the test platform. The instrumen...

Embodiment 2

[0053] This preferred embodiment provides an in-pipeline detector loop test platform, the structure of which is basically the same as that of the first preferred embodiment. The test platform includes a pipe 2 with a defective sample 1 preset on the hollow pipe wall and a power system; the power system includes a traction automatic control device 3, a working condition experiment device, an electrical power supply device and an instrument control device. Wherein, the traction automatic control device 3 is used to provide traction for the inner detector. Preferably, the traction automatic control device 3 includes a hoist, and the hoist provides traction to the inner detector. The working condition experiment device is used to fill the pipeline 2 with liquid or gas to test the working environment in the submarine pipeline. The electrical power supply unit supplies power to devices within the test platform. The instrument control device includes a controller and a plurality of ...

Embodiment 3

[0059] This preferred embodiment provides a test method for the wear resistance of the inner detector by using the least number of tests on the loop test platform of the inner detector in the pipeline, and its structure is basically the same as that of the first preferred embodiment.

[0060] First, manually detect and record parameters such as the quality of the internal detector, material density, medium density under different experimental conditions, the number of detector petals, and the number of elbows in the pipeline 2; secondly, use the traction automatic control device 3 as the internal detector Provide traction to run the inner detector in the experimental pipeline in the experimental inner detector loop test bench. After each experiment, record the current weight and running time of the inner detector, count the weight change and total running time of the inner detector up to the current experiment, put the statistical results in Table 1, and obtain the wear resista...

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Abstract

The invention belongs to the technical field of experiment test and discloses a pipeline inner detector loop test platform and a test method thereof. The platform is designed to solve the problem of lack of special verification and test platform for submarine pipeline inspection technology. The submarine pipeline land test platform comprises a pipeline, which is provided with a defect sample on the hollow pipe wall in advance and a power system. The power system comprises an automatic traction control device, a working condition experiment device, an electrical power supply device and an instrument control device. The pipeline inner detector loop test platform can test operation conditions of an inner detector under pure liquid and gas conditions, verifies passing capability of the inner detector, verifies defect detection precision and positioning accuracy of the inner detector and defect shape and size and the like, can carry out experimental verification of various parameters on pipeline inspection technology and equipment at home and abroad to ensure technology reliability and safety, and meanwhile, provides guarantee for independent research and development of the pipeline inspection technology.

Description

technical field [0001] The invention belongs to the technical field of experimental testing, and in particular relates to a testing platform and a testing method for an in-pipeline detector loop. Background technique [0002] Submarine pipelines (especially pipelines used to transport oil and gas) work in harsh environments. Once excessive defects occur on the pipe wall, it may cause damage and leakage of the pipeline, with serious consequences. In order to avoid this situation, it is necessary to inspect the pipeline regularly and irregularly, in order to find the defect as early as possible, repair or replace the defective pipeline in time. [0003] The usual pipeline detection method is to place an internal detector in the pipeline, and the internal detector operates in the pipeline with the power of the conveying medium to realize the online detection of the pipeline. After the design and processing of the internal detector is completed, it cannot be directly used for t...

Claims

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Application Information

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IPC IPC(8): G01N27/83
CPCG01N27/83
Inventor 唐建华郑松林赵可天杨舸刘慧勇李雪杨天郁姜辉
Owner CNOOC ENERGY TECH & SERVICES
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