An inner wall loss measuring device for power pipelines

Abstract

The invention discloses an inner wall loss measuring device for power pipelines, which includes a coiled cylinder group and an insertion sleeve, a detection mechanism is installed in the insertion sleeve, and a catheter is wound and connected to the coiled cylinder group. The detection column and the air bag realize the detection of the change length and change amount of the inner wall of the pipeline. When measuring, the lifting column can be rotated first to drive the sealing sleeve to a suitable position, so that the insertion sleeve can be inserted into power pipes of different diameters. Both can achieve the purpose of normal detection. Once the depression is measured, the values ​​on the pressure measuring device and the distance measuring cylinder will change, so that the change amount and the initial change position can be obtained. After the insertion sleeve passes through the depression, the pressure measurement The values ​​on the gauge and the distance measuring cylinder will change again. At this time, the user can measure the distance of the pipe change according to the amount of the catheter during the two changes of the distance measuring cylinder, so that the user's subsequent maintenance is more convenient.

Description

technical field [0001] The invention relates to the technical field of power pipes, in particular to an inner wall loss measuring device for power pipes. Background technique [0002] The power pipe is a product made of PE (modified polyethylene) for hot-dipping or epoxy resin for internal and external coating, and has excellent corrosion resistance. At the same time, the coating itself has good electrical insulation and will not cause electrical corrosion. Low water absorption, high mechanical strength, small friction coefficient, can achieve the purpose of long-term use. It can also effectively prevent the damage of plant roots and soil environmental stress. [0003] When the current power pipeline is installed, because it is piled up and stored outdoors, it is very easy to enter the interior of stones and other sundries, and then the inner wall of the pipeline is easily scratched due to vibration during transportation, resulting in thinning or dents in some areas of the...

AI Technical Summary

Problems solved by technology

[0005] For this reason, the present invention provides a kind of inner wall loss measurement device for power pipeline, to solve the problem that the measurement device in the prior art has a small application range, and it is impossible to know where the inside of the pipeline starts to become thinner, and the distance of thinning is How much, so that the maintenance personnel will spend a lot of energy in the follow-up inspection, and it takes multiple measurements to know the exact location of the inspection

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