WRAP-AROUND WEIGHT OF PIPELINE Russian patent published in 2013 - IPC F16L1/06 

FIELD: construction.

SUBSTANCE: pipeline wrap-around weight comprises two concrete blocks arranged during assembly oppositely relative to the longitudinal axis of the pipeline and connected at two levels of the rated length with power belts in amount from 3 to 6. Each block is made in the form of a prism with bases in the form of an irregular pentagon, having a face adjacent to the pipeline, an upper face perpendicular to it, a face that is parallel to the face adjacent to the pipeline, a lower face that is perpendicular to the face adjacent to the pipeline, and a face at the angle of 25-30 degrees to the lower face. The lower point of the wrap-around weight after its installation on the pipeline is above the lower generatrix of the pipeline, its upper point - below the pipeline top, and the centre of gravity of the weight is below the longitudinal axis of the pipeline. Blocks are equipped with two assembly and two technological loops, and from 3 to 6 elements of fixation of power belts, at the same time the length of the latter is selected accordingly for upper and lower belts with the condition L_U=1.6-1.65D and L_L=1.9-1.95D, where D - pipeline diameter.

EFFECT: provision of high reliability and durability of a weight, reduced labour intensiveness of block production, increased rates of assembly works production.

7 cl, 2 dwg