CARRIER OF SENSORS FOR INTRAPIPE INSPECTION DREDGER (MODIFICATIONS) Russian patent published in 2003 - IPC

FIELD: devices used for intrapipe inspection of large-length pipelines (main lines, oil lines, gas pip-lines) by nondestructive methods. SUBSTANCE: the carrier for the intrapipe inspection dredger, having several modifications, with mounting seats for reference sensors that are sensitive to some diagnostic parameters of the pipe-line is characterized by the fact that the carrier comprises a great number of kinematically interconnected sensor holders that are able for testing the elastic squeezing out from the carrier axis in the radial direction. The holders are made in the form of members adjoining the wall of the pipe-line of the rows of the interconnected members, or fastened on the elastic members in the form of rings or sectors of collars, and/or or are connected to the body that is able for bending. Elastic spacers are installed on the holders between the sensors and the inner surface of the pipe-line. EFFECT: enhanced efficiency of inspection of pipe-lines, having defects of geometry in section due to a great number of members (holders) with mounting seats for the sensors with separation of the functions of pressing of the sensors to the inner surface of the pipe-line and bending of the defects of the geometry in its section. 68 cl, 6 dwg