Portable System for digital radiography of girth welds PIPELINES

摘要

The invention relates to a device for non-destructive X-ray inspection of circular welded piping joints. Portable system for digital radiography girth welds on the main pipelines comprises positioning and movement system, mounted coaxially with the pipe and the female pipe, the X-ray radiation source and a radiation detector mounted on diametrically opposite sides of the positioning and movement of the system. In this positioning system and moving it includes guiding belt made of a metal strip and resting on the surface of the pipe through the supports, leading carriage with mounted thereon, at least one radiation detector mounted on the guide belt by means of rollers, an intermediate carriage, transmitting force with the driving of the carriage on the slave carriage on which is mounted, at least one X-ray source, a rigid coupling, consisting of two or more pieces and sequentially connecting IU I wait a leading, intermediate and driven carriage. The guide belt can be provided with one or more hinges and one or more locks on the end of the belt. Leading the carriage is fixed on the guide belt with four rollers that converge with each other in pairs. The base leading carriage can be divided into two halves, connected by a hinge on each of which one pair of converging rollers installed. An intermediate carriage is mounted on the guide belt by means of one or more pairs of converging rollers. The driven carriage is divided into two halves which are connected by a hinge.