PIPE-LAYING VESSEL (EMBODIMENTS) AND METHOD OF PIPELINE LAYING Russian patent published in 2019 - IPC F16L1/19 F16L1/235 F16L1/20 B63B35/03 

FIELD: transportation.

SUBSTANCE: group of inventions relates to pipeline transport and can be used in laying pipelines on the bottom of a water reservoir from a ship. Pipe laying ship includes the main deck and a pipe laying derrick directed upwards from the ship. Tower includes the first lower section directed upwards from its proximal end to its distal end located above main deck (103), and the second upper section (311) movably installed on the first lower section. Paving lining mast is movable between the first pipe-laying position, in which the second upper section (311) is located above the first lower section, and second folded position, in which second upper section (311) is moved relative to first lower section, and total height of pipe-laying tower is reduced. Pipe is installed with the possibility of movement in the process of laying from second upper section (311) to the first bottom section.

EFFECT: technical result: improvement of stability, reliability and durability of the pipe laying derrick and the pipe laying ship in general due to reduction of the derrick centre of gravity, high manoeuvrability and cross-country capacity due to reduced height of the tower, high efficiency of loading pipeline branches on pipe-laying derrick.

28 cl, 24 dwg