Pipeline internal detection system

Abstract

The invention provides a pipeline internal detection system which comprises a receiving and transmitting system and a detector, the receiving and transmitting system is arranged at the position of an inlet and outlet metal hose of an oil depot tank, and the detector is a spherical detector and is put and recycled through the receiving and transmitting system. The receiving and transmitting system comprises a receiving and transmitting ball cylinder and a main pipeline, the main pipeline is the inlet and outlet metal hose pipeline of the oil depot tank, the receiving and transmitting ball cylinder communicates with the two ends of the pipeline, and the detector is received and transmitted through the receiving and transmitting ball cylinder. The ratio of the diameter of the detector to the pipe diameter is (0.7-0.8): 1. The pipeline spherical internal detector adopts equipment special for putting and recycling, and system operation is safe and simple. The capacitive micro machining ultrasonic sensor is adopted to well overcome many defects of a piezoelectric sensor, and has the advantages of high sensitivity, wide bandwidth, easiness in manufacturing, small size, low noise, wide working temperature range and easiness in electronic integration. The spherical internal detector has the advantages of simple mechanical structure design and flexible movement.

Description

technical field [0001] The invention relates to the field of pipeline health detection, in particular to an in-pipeline detection system. Background technique [0002] Aviation kerosene (jet fuel) is the blood of the aircraft and the main component of aviation energy. The aviation kerosene pipeline is the key link from the energy transmission to the supply of aircraft flight operations, and its healthy operation will directly affect flight safety. Therefore, it is of great significance to monitor the leakage of oil pipelines. Since 2018 alone, there have been many leaks in the entire pipeline, causing large economic losses and adverse social impacts. Therefore, it is of great significance to monitor and detect the safety status of oil pipelines through technical means to ensure the health and normal operation of oil pipelines and to ensure the normal supply of combat energy. [0003] In view of the characteristics of the existing old oil pipelines, such as a large number o...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the flow balance method has a slow response to leakage detection in the prior art and cannot perform functions of leakage location and pipe wall corrosion warning, the traditional electrical method can only detect and evaluate the quality of the external anti-corrosion layer of the pipeline. For the problem that the defects of the metal body of the new oil pipeline are powerless, and it is completely impossible to realize the positioning detection of the complex pipeline topology, an in-pipeline detection system is provided, which detects the pipeline wall through the joint inversion of the pipe wall image smart ball by capacitance and near-field acoustics information, which solves the above problems

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