Inner wall loss measuring device for electric power pipeline

Abstract

The invention discloses an inner wall loss measuring device for an electric power pipeline. The device comprises a coiling cylinder group and an insertion sleeve, wherein a detection mechanism is mounted in the insertion sleeve, and a guide pipe is connected to the coiling cylinder group in a winding manner. According to the invention, the change length detection and the change quantity detectionof the inner wall of the pipeline can be realized through a detection column and an airbag; when measurement is carried out, a lifting column can be rotated to drive a blocking sleeve to a proper position so as to enable the insertion sleeve to achieve the purpose of normal detection after being inserted into power pipes with different pipe diameters, then numerical values on a pressure measuringdevice and a distance measuring cylinder are changed once a concave part is measured, the variable quantity and the initial change position are obtained accordingly, then after the insertion sleeve passes through the concave part, the numerical values on the pressure measuring device and the distance measuring cylinder can be changed again, and a user can measure the change distance of the pipeline according to the extension quantity of the guide pipe in the two change processes of the distance measuring cylinder at the moment, so that the user can more conveniently carry out subsequent maintenance.

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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