BENCH FOR INVESTIGATION OF EQUIPMENT AND PROCESSES OF TRENCHLESS REPAIR OF PIPELINES Russian patent published in 2015 - IPC G01M3/00 

FIELD: measurement equipment.

SUBSTANCE: proposed bench for investigation of equipment and processes of trenchless repair of pipelines includes the following components installed on a base: an investigated pipe, where an investigated flexible sleeve folded twice with inversion is located, and its outer edge is fixed on the pipe, a system of pressure creation at the sleeve and a dynamic mechanism in the form of a movable weight on the block, and a traction dynamometer, installed in a detachable manner as capable of autonomous connection with the inner edge of the sleeve, at the same time the source of pressure at the sleeve is a compression cylindrical chamber mounted as capable of autonomous connection with a compressor and with a hydraulic recirculation system, and connected with an investigated pipe in the area of fixation of the outer edge of the sleeve by means of a replaceable attachment, and also equipped with a pneumatic gate connected to the compressor, and the gate comprises a body and an inner elastic collar capable of displacement of the sleeve in it, the inner edge of which is connected to a dynamic mechanism, besides, the compression chamber is equipped with winding coils as fixed on the central shaft perpendicular to the central axis of the investigated pipe, the inner one, capable of sleeve winding with its inner edge, and the outer one, capable of autonomous connection with a movable weight or a traction dynamometer of the dynamic mechanism.

EFFECT: provision of multi-variant determination of head and average speed of water flow, head loss, kinetic energy coefficient, coefficient of hydraulic friction at various combinations of loads at different models of pipes and sleeves.

10 cl, 4 dwg