Axial inner pull type quick connect submarine pipeline device

Abstract

The invention provides an axial inner pulling type rapid seabed pipeline connecting device applied to connection of different pipe sections of seabed pipelines. The multi-metal sealing technology composed of sealing rings is adopted in the seabed pipeline connecting device, a left-right symmetry structure, a tooth groove type butt joint device, a spline tooth type guiding device and a key groove type sliding body are combined, and underwater hydraulic drive axial inner pulling rapid connection work is implemented. A rotation body is adopted in an end portion sealing device, and butt joint device and seabed pipeline connection is finished in combination with conical sealing rings. A tooth groove type barrel is adopted in the butt joint device, and butt joint device and guiding device connection is finished in combination with a lens sealing ring and a hexagonal sealing ring. A clamping tooth type long pipe is adopted in the guiding device, and rapid butt joint device and guiding devicebutt joint is finished in combination with cooperation of arch-shaped clamping teeth and a butt joint body arch-shaped tooth groove. A key groove type split disc is adopted in the sliding body, and hydraulic shaft pulling system radial supporting is finished in combination with a guiding body spline tooth type guide rail. Drive force is provided for rapid butt joint of the butt joint device and the guiding device through two independent hydraulic shaft pulling systems.

Description

technical field [0001] The invention relates to a device for connecting submarine pipelines in the field of marine engineering, in particular to an axially inner-pull type quick connection device for connecting different pipe sections of submarine pipelines in an underwater production system. Background technique [0002] In the field of marine engineering, submarine oil and gas medium transportation pipelines are very important transportation equipment, and the submarine pipelines need to be constantly adjusted and transformed to meet the export requirements of submarine oil and gas wells. At the same time, the existing submarine pipelines have insufficient transportation capacity or surrounding new When oilfields are connected, it is also necessary to continue to expand the laying scale of submarine pipelines. The technology of connecting submarine pipelines and its connectors are widely used in engineering practices such as deepwater oilfields, marginal oilfields, and unde...

AI Technical Summary

Problems solved by technology

[0004] In order to effectively solve the problem of quick connection of submarine pipelines laid or repaired underwater and overcome the defects and deficiencies of existing underwater pipeline connectors, the purpose of the present invention is to provide an axial inner connector suitable for quick connection of different pipe sections of submarine pipelines. Pull connection device

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