Elbow pipe structure fatigue relieving system and structure fatigue relieving control method

Abstract

The invention provides an elbow structure fatigue relief system and a structure fatigue relief control method, and relates to the technical field of pipeline structure fatigue relief, the elbow structure fatigue relief system comprises a modulation assembly, the modulation assembly comprises a plurality of impellers arranged at intervals, and the impellers are installed on a sliding rod; the distance adjusting device is used for adjusting the distance between two adjacent impellers in the modulation assembly; the pressure sensor is positioned in the bent pipe and is used for detecting a pressure value; and the controller is used for controlling the distance adjusting device to adjust the distance between the two adjacent impellers according to the pressure value. High-pressure liquid flowing through the bent pipe is modulated and buffered through the multiple impellers arranged at intervals, the buffering degree is adjusted by adjusting the distance between the adjacent impellers, the distance between the adjacent impellers is adjusted according to the pressure value, and therefore the modulating assembly rapidly reaches the state of buffering the fluid; and strong alternating load is prevented from being generated on the inner wall of the bent pipe.

Description

technical field [0001] The invention relates to the technical field of pipeline structure fatigue mitigation, in particular to a bending pipe structure fatigue mitigation system and a structural fatigue mitigation control method. Background technique [0002] In the pipeline of the ship power system, there is usually high-pressure fluid, especially for the ultra-high pressure liquid flowing in the elbow pipe under the ultra-high pressure condition in the ship power system, when passing through L-shaped or U-shaped pipelines with curved pipeline structures When , severe turbulent flow will be formed in and around the curved section of the pipeline, which will cause corresponding pressure fluctuations on the inner wall of the pipeline. Under the action of repeated alternating loads, the structural damage of the pipe bending structure will gradually accumulate. If it cannot be effectively relieved, the fatigue damage will gradually increase, and eventually fatigue cracks will b...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a structural fatigue mitigation system and structural fatigue mitigation control method for bent pipes, which are used to solve the problem in the prior art that when high-pressure liquid flows through the bent pipe, severe turbulent flow is formed in and around the curved section of the pipe, thereby making the pipe Corresponding pressure fluctuations are produced on the inner wall, and the structural damage gradually accumulates, resulting in the rupture of the pipe wall, which seriously affects the safe operation of the ship's power system. A bending pipe structure fatigue mitigation system and structural fatigue mitigation control method are realized.

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