An experimental device for extruding flexible umbilical cables in marine engineering

Abstract

An extrusion experiment apparatus for flexible pipe cables in ocean engineering is characterized in that the apparatus comprises a ring gear and a driving device for driving the ring gear to rotate; the end face at one side of the ring gear is engraved with vortex-shaped lines; the ring gear is outside provided with a shell, the shell possesses a hole through which a pipe cable passes, the hole is concentric with the ring gear; and the shell is provided with multiple hold-down devices uniformly distributed by taking the circle center of the hole as the center, and under working condition, the engraved vortex-shaped line drives the multiple hold-down devices to moves along the radial direction of the hole synchronously. The designed clamping system is capable of achieving synchronous movement of multiple crawler shoes through a single actuator, achieving linkage of slide blocks moving along the radial direction through the engraved vortex-shaped lines, and accordingly realizing synchronous extrusion of the crawler shoes towards the section center of the pipe cable while guaranteeing the extrusion precision, and avoids error caused by coordination control of a conventional experiment apparatus.

Description

technical field [0001] The invention relates to an extruding experimental device for flexible umbilical cables in marine engineering. Background technique [0002] my country's South China Sea and other deep waters are rich in oil and gas resources, but oil and gas exploitation is characterized by high technology and high risks, requiring a lot of manpower, material and financial resources to develop related development equipment. With the rapid development of my country's scientific and technological progress, the key equipment of marine engineering has gradually realized localization. Among them, transportation pipelines and control cables have made breakthroughs in key technologies such as design analysis, processing and manufacturing, and test verification in recent years, such as: used for oil and gas transportation between Christmas trees and storage equipment or between offshore floating bodies Flexible pipelines, floating pipes, cryogenic pipes and RTP pipes, etc.; ...

AI Technical Summary

Problems solved by technology

[0008] 1. The number of actuator 1``` is large, and the experimental cost is high;

[0009] 2. The control system of the loading device is relatively complicated. If multiple actuators 1``` cannot be coordinated and controlled, it may lead to uneven extrusion force of the upper crawler shoe acting on the umbilical cable 2```, and the action time is not endless same, resulting in inaccurate measurement results;

[0010] 3. The device requires a larger experimental site

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