Thickness detecting probe for wheel type pipeline detector

Abstract

The invention discloses a thickness detecting probe for a wheel type pipeline detector. The thickness detecting probe is designed for precisely detecting the wall thickness of a pipeline. A thickness detecting wheel, supporting wheels, a sliding ring seat and end covers of the thickness detecting probe are connected to supporting arms connected with a detector frame through a shaft, and run together in the pipeline along with the detector. The sliding ring seat is fixed in the end covers, and rotates along with the thickness detecting wheel and the supporting wheels, and sliding rings are fixed in the sliding ring seat, and are in close contact with carbon brush devices. Ultrasonic probe bodies are arranged in the thickness detecting wheel and used for achieving sound field coupling between the ultrasonic probe bodies and the pipe wall. Metal blocks are embedded in the supporting wheels, the metal blocks and a proximity switch on the supporting arms act together, and ultrasonic signals are excited to be generated. The probe is suitable for being used for pipeline deformation, corrosion and crack detectors, the length of the supporting arms is adjustable, the supporting arms and the detector can be integrated conveniently, the probe can be suitable for requirements for detection of pipelines of different calibers, it is guaranteed that detection signals are precise, lasting and stable, supporting performance is good, adaptability, impact resistance and abrasion resistance are high, and the service life is long.

Description

technical field [0001] The invention relates to a thickness measuring probe for a wheeled pipeline detector, which belongs to the technical field of pipeline detection. Background technique [0002] At present, oil and gas pipelines have entered the era of high-pressure and large-volume transportation. Pipelines are prone to localized corrosion in high-pressure, high-speed and corrosive medium environments, which makes the pipe wall gradually thinner, thereby reducing the safety of pipeline operation. The integrity management of pipelines requires accurate wall thickness data of each section of pipelines. However, the wall thickness data of most pipelines in service is missing, which affects the quality of management. Therefore, it is of great significance to develop a measurement device for pipeline wall thickness. [0003] When the in-service pipeline is inspected regularly, the pipeline wall thickness measurement device is generally mounted on the detector, which can impr...

AI Technical Summary

Problems solved by technology

However, the existing pipe wall thickness measuring device is suitable for a small range of pipe diameters, and it is not convenient to integrate with the detector. The measuring device is composed of a separate section, which is bulky and costly. The material of the thickness measuring wheel is soft and prone to distortion

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