PLANT FOR QUASIVERTICAL LAYING OF PIPELINE

摘要

FIELD: plants for quasivertical laying of pipelines in coastal zone. SUBSTANCE: centering tower rests on supporting base and frame on vessel for laying pipelines. Centering tower extends upward from base and designed for holding pipe length connected to pipeline. Supporting tower holding mass of pipeline is secured to supporting base so that it extends from it into water. Travelling block is intended for moving along tower for raising or lowering pipe and pipeline. Platform moving between open and closed positions for receiving pipe length from travelling block and holding of pipeline mass is located near the base (bottom) of tower. For catching of pipe joint from rack for pipes ready for welding and transfer of pipe joints to centering tower for connection to pipeline, use may be made of shipborne block or boom. As supporting tower extends into water no stinger is needed. Attachment of supporting tower and its location in water also makes for lowering of center of gravity of plant. EFFECT: higher efficiency.