Submarine pipeline laying machine and hydraulic jetting combined rotating ditcher for 500-meter deep hardpan

Abstract

The invention relates to a submarine pipeline laying machine and hydraulic jetting combined rotating ditcher for 500-meter deep hardpan, is applied to a submarine hardpan seabed of 500 meters and within 500 meters, and belongs to the technical field of marine engineering equipment. The ditcher comprises main parts such as an external bracket, an outer rotating cylinder, cutter teeth, an upper suspension cylinder, a lower support pillar, a plough share, nozzles, a high-pressure water pipe, an inner cylinder, baffle plates, a sealing rubber waterproof pad, a motor, an output transmission shaft, a shaft coupling, an upper-plane ordinary gear train, a lower-plane ordinary gear train, a top cover, a bottom cover and bearings, wherein the top cover, the bottom cover, the outer rotating cylinder and the cutter teeth are driven by the motor through the upper and lower-plane ordinary gear trains to rotate to realize a seabed groundbreaking function; the hardpan can be crushed by high-pressure water jetted by the high-pressure water pipe and the nozzles, so that the cutting resistance of the cutter teeth is reduced; liquefied soil is sucked out by a slurry pump suction pipe to realize a submarine ditching function. The ditcher has the advantages of being large and deep in ditching, high in working efficiency and environmental adaptability, remarkable in social and economic benefits, and the like.

Description

technical field [0001] The invention relates to a 500-meter-deep hard soil seabed pipeline laying machine and a hydraulic jet composite rotary opener, which is suitable for deep-sea hard soil seabeds of 500 meters or less, and belongs to the technical field of marine engineering equipment. technical background [0002] At present, as my country's dependence on energy demand continues to increase, the development and utilization of offshore oil and gas resources are developing unprecedentedly. As an important part of marine engineering technology, submarine trenching technology is increasingly showing a pivotal position. In the submarine oil (gas) pipeline, the submarine pipeline trencher is an important equipment for the protection of submarine pipelines. The pipelines are located on the seabed, and most of them need to be buried in the seabed soil to a certain depth, and some are in the wave breaking zone or tidal range zone. The pipelines in them are greatly affected by wi...

AI Technical Summary

Problems solved by technology

In the research and development of hard soil subsea pipeline equipment technology, most trenchers are suitable for shallow sea waters, and the trenching depth and width are relatively small, which is difficult to meet the requirements of trenching operations in complex geological environments

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