A submarine pipeline protection device against shock and vibration

Abstract

The invention relates to a shock-resistant and vibration-resistant submarine pipeline protection device, which includes a pipe base, a counterweight layer, a vibration-damping ring and an inner coating. The steel concrete parts in the counterweight layer include an upper steel concrete and two lower steel concrete, The connection between the upper steel concrete and the lower steel concrete is a bump structure, and the bump of the upper steel concrete is set under the lower steel concrete bump, and the vibration damping ring is provided with an outer ring and an inner ring, and the inner ring of the outer ring A spring is provided, a first damping element is installed on the side of the inner ring close to the outer ring, a second damping element is installed on the side of the inner ring close to the pipe base, and a roller is installed between the first damping element and the second damping element. son. The invention resists external impact load and vibration load through the set steel concrete parts and vibration damping ring, and can effectively avoid adverse effects on the submarine pipeline due to external adverse factors such as seabed erosion, tidal currents, eddy current oscillation and ship anchors. , to ensure good conditions for the normal operation of the submarine pipeline.

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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