Diamond wire saw cutting machine for underwater vertical pipe

Abstract

The invention provides a diamond wire saw cutting machine for an underwater vertical pipe. The diamond wire saw cutting machine is composed of a cutting device, a feeding device, a clamping device, atensioning device, a guide device and a main body frame. The main body frame is of vertical design and vertical installation, the cutting device, the feeding device and the clamping device are compactly installed on the main body frame, and the tensioning device and a rope control guide device are installed on the feeding device. The feeding device and the clamping device are in a parallel installation manner on the main body frame, and the clamping device is nested and installed in the middle of the feeding device, the rope control guide device controls the direction of a diamond string beadwire, to ensure that the string bead wire and the clamping device do not interact with each other during the cutting operation. The diamond wire saw cutting machine is used for cutting of the underwater composite vertical pipe or a jacket pile foundation of an abandoned platform, and operations such as the recovery or maintenance of the underwater composite vertical pipe and the dismantling of theabandoned platform can be implemented.

Description

technical field [0001] The invention relates to an underwater riser diamond wire saw cutting machine, which belongs to the technical field of marine engineering. Background technique [0002] my country has a vast ocean area, and offshore oil and gas resources account for a large proportion of my country's energy supply, which is one of the important forms of marine economy. In recent years, my country's oil and gas development and utilization activities have greatly increased, and ocean pipelines are important transportation channels for the development and utilization of offshore oil and gas. Marine pipelines can be classified into single-wall pipelines, pipe-in-pipe pipelines and cluster pipelines according to the structural classification of pipeline cross-sections. The components of the pipeline are reinforced concrete weight layer, foam insulation layer, polyethylene anti-corrosion coating, anti-corrosion paint layer and steel pipe layer from outside to inside. Becau...

AI Technical Summary

Problems solved by technology

Because ocean pipelines have been in a complex environment of high temperature and high pressure for a long time, they are corroded by the transportation of oil and gas and other harmful gases. If there is a large impact, many pipelines are at risk of damage, and once there is a problem with the ocean pipeline, the loss will be great, so the repair of the pipeline is an urgent matter

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