Detection device and detection method for interior of pipeline

An internal detection and pipeline technology, used in measuring devices, devices using electrical/magnetic methods, instruments, etc., can solve the problems of unstable walking speed and affect the detection accuracy of the detector, achieve uniform walking, ensure detection accuracy, The effect of improving detection efficiency

Pending Publication Date: 2019-03-05
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a pipeline internal detection device to solve the problem that the existing pipeline internal detection device has unstable walking s...

Method used

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  • Detection device and detection method for interior of pipeline
  • Detection device and detection method for interior of pipeline
  • Detection device and detection method for interior of pipeline

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Embodiment Construction

[0024] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0025] Embodiment 1 of the pipeline internal detection device of the present invention, such as Figure 1 to Figure 3 As shown, it includes a walking frame that can walk along the inner wall of the pipeline to be detected. The walking frame includes a front walking frame 2 connected end to end from left to right, a detection frame 3 and a rear walking frame 4; the front side and the rear side of the front walking frame 2 The front connecting shaft 201 of the front walking frame and the rear connecting shaft 219 of the preceding walking frame are respectively provided; The front side is provided with a rear walking frame connecting shaft 401.

[0026] The front connecting shaft 201 of the front walking frame is connected with the leather cup assembly 1 for cleaning the pipeline to be detected through the universal joint 5 . The cup assembly 1 includes a...

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Abstract

The invention relates to a detection device and a detection method for the interior of a pipeline, belonging to the field of petroleum. The detection device for the interior of the pipeline comprisesa walking mechanism capable of walking in a to-be-detected pipeline and a detection mechanism used for pipeline detection; and the detection device also comprises a PID speed control module used for controlling the walking speed of the walking mechanism and a speed detection module used for detecting the walking speed of the walking mechanism, wherein the speed detection module is connected with the signal of the PID speed control module which is connected with the walking mechanism in a controlled manner. When in use, the detection device is mounted into the to-be-detected pipeline, and the speed detection module detects the walking speed of the detection device in real time in the walking process of the detection device; the speed detection module transmits a measured speed to the PID speed control module, while the PID speed control module adjusts the walking speed of the walking mechanism in real time, so walking of the detection device at a constant speed is realized. Compared with the prior art, the detection device and the detection method provided by the invention have the following advantages: the accuracy of detection is guaranteed; meanwhile, the detection efficiency ofa detector is improved.

Description

technical field [0001] The invention relates to a pipeline internal detection device and a detection method for detecting the inside of a pipeline in the petroleum field. Background technique [0002] Oil and gas gathering and transportation pipelines are prone to oil and gas leakage due to corrosion, cracks and damage during use. The leaked oil and gas will not only pollute the environment and cause economic losses, but may also cause safety accidents such as poisoning, combustion, and explosion. Therefore, the pipeline needs to be inspected regularly to ensure the safety and reliability of the pipeline. At present, people have researched and developed pipeline internal detectors with different technical principles such as ultrasonic method, magnetic flux leakage method, and in-pipe TV camera method. [0003] At present, it is mainly used to monitor the pressure difference between the front and rear of the detector in the pipeline, adjust the output of the oil and gas well...

Claims

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Application Information

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IPC IPC(8): G01N27/83G01N21/954G01N29/04G01N29/265G01P3/50
CPCG01N21/954G01N27/83G01N29/04G01N29/265G01P3/50G01N2021/9548G01N2291/2634G01N2291/2636G01N2291/0289
Inventor 张分电梁馨月李君付德奎苏国丰刘方检洪祥庞斌王弘杰
Owner CHINA PETROLEUM & CHEM CORP
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