Impact-vibration-resistant subsea pipeline protection device

Abstract

The invention relates to an impact-vibration-resistant subsea pipeline protection device which comprises a pipe base, a counterweight layer, a damping ring and an inner coating, a reinforced concretepart in the counterweight layer comprises upper reinforced concrete and two pieces of lower reinforced concrete, the joints of the upper reinforced concrete and the lower reinforced concrete are eachof a protruding block structure, and protruding blocks of the upper reinforced concrete are arranged below protruding blocks of the lower reinforced concrete. An outer ring and an inner ring are arranged in the damping ring, a spring is arranged in the outer ring, a first damping piece is installed at the side, close to the outer ring, of the inner ring, a second damping piece is installed at theside, close to the pipe base, of the inner ring, and a roller is arranged between the first damping piece and the second damping piece. External impact load and vibration load are resisted through thereinforced concrete part and the damping ring, adverse effects on a submarine pipeline due to external adverse factors such as seabed erosion, tide, eddy current oscillation and boat anchors can be effectively avoided, and good conditions for normal work of the submarine pipeline are guaranteed.

Description

technical field [0001] The invention relates to the technical field of submarine pipeline protection, in particular to a shock-resistant and vibration-resistant submarine pipeline protection device. Background technique [0002] Submarine pipelines in the submarine environment will be subject to seabed erosion, tidal currents, and eddy current oscillations. Moreover, my country's shipping and fishing industries are becoming more and more prosperous. Ship areas and fishery operation areas are becoming more and more dense. In some sea areas, fish farming operations There will be overlap between the area and the laying area of ​​the submarine pipeline, and the operation of fishing vessels at sea is relatively random, accidental anchoring operations are frequent, and many external environmental uncertainties make the submarine pipeline face extremely high risks. In the past ten years, my country has paid more and more attention to marine resources and increased the intensity of d...

AI Technical Summary

Problems solved by technology

In the past ten years, my country has paid more and more attention to marine resources and increased the intensity of development and utilization of marine resources. Among them, there are many application fields of submarine pipelines in the oil and gas industry. The damage and position migration of the submarine pipeline, the failure and instability of the submarine pipeline will cause serious pipeline leakage, waste resources, and pollute the marine environment

[0003] In the prior art, the protection devices for submarine pipelines have one-sided functions, and the single anti-shock device and single vibration damping device are not only complex in structure, but also unable to effectively deal with complex marine environment changes

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