DEVICE FOR AUTOMATIC MONITORING OF THE CONDITION OF ASBESTOS-CEMENT DISCHARGE PIPELINES IN A CLOSED IRRIGATION SYSTEM Russian patent published in 2021 - IPC E02B13/00 G01N21/88 F17D5/02 

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to operational monitoring of the technical condition of irrigation system structures in hydraulic engineering construction. In a device containing a device moved relative to the pipeline being examined using drive wheels with means of scanning, obtaining images of the pipeline surface, a recorder and transmitting data to a computer to form a three-dimensional model of the pipeline using a software block, according to the invention, as means for forming a three-dimensional model of the pipeline with an adjacent volume of soil, obtaining images of the inner surface of the pipeline and recording, the following elements are used, respectively: a scanner in the form of a georadar antenna on a telescopic rod, a digital camera or video camera with illumination and a recorder in the form of a marker communicated through a trunk with a container for coloring matter, while a stepper motor with a hollow rotating shaft and a control unit, communicated with a computer and with a node for switching modes of rotational and translational movements, is used to enable their cyclic rotation along the inner surface of the pipeline and movement along it. A georadar antenna, a digital camera or a video camera with illumination and a marker are mounted on a rotating shaft sequentially one after another at distances equal to the width of the scanned area. The main line for supplying the coloring substance from the container to the marker is located inside the cavity of the rotating shaft, and the container for the coloring substance is connected to the control unit. The georadar antenna is located at the same distance from the scanned surface, automatically adjustable by means of a telescopic rod, depending on the change in the speed of its movement. The capture width of the lens of a digital camera or video camera is equal to the width of the scanning area. The drive wheels are connected to a node for switching modes of rotational and translational motion.

EFFECT: invention provides an opportunity to assess the condition of asbestos-cement discharge pipelines and make a decision on the necessary type and scope of their repair, and also makes it possible to determine the possibility of their secondary use.

1 cl, 4 dwg