Underwater gas phase pipeline leakage and diffusion experiment device

Abstract

The invention discloses an underwater gas phase pipeline leakage and diffusion experiment device. The experiment device comprises a power module, an experiment module and a detection and experiment data processing module; the power module comprises an air compressor, a gas buffer tank, a pressure gauge, a pressure stabilization electromagnetic valve and a gas delivery hose; the experiment module comprises three parts, namely, an underwater gas phase leakage rate experiment pipeline, a control experiment pipeline and an underwater gas phase diffusion experiment pipeline; and the detection and experiment data processing module comprises two turbine flow sensors, two pressure gauges, three high-speed cameras and a PLC module. According to the device, the research requirements of the underwater gas phase pipeline leakage and diffusion mechanism aspect under laboratory conditions can be met, the device is used for the underwater gas pipeline leakage quantity evaluation and the research of the gas diffusion process under the water environment and the water surface inrush current effect, a verification way is provided for numerical simulation, the reliability of the underwater medium leakage diffusion mechanism and consequence evaluation is improved, and a scientific theoretical basis is provided for pipeline leakage monitoring and risk assessment and accident emergency; and the experiment process is simple and easy to operate, and the problems that a traditional laboratory large-scale similarity experiment research is little, and testing is inconvenient and is not accurate are solved.

Description

technical field [0001] The invention relates to a pipeline leakage and diffusion experiment device, in particular to an underwater gas phase pipeline leakage and diffusion simulation experiment device. Background technique [0002] Pipeline transportation has the advantages of continuous efficiency, safety and stability, economy and pollution-free, etc. Submarine gas pipelines are the main components of offshore gas field development and production systems. Environmental loads are prone to various failure modes such as corrosion thinning, fatigue, and buckling. Once a leak occurs, it will not only cause production interruption, but also affect the normal downstream gas supply. In addition, a large amount of leaked gas entering seawater will reduce the density of seawater near the surface, which will adversely affect the stability of structures such as ships and offshore platforms on the sea surface. After the gas overflows from the sea surface, it may cause serious fire and...

AI Technical Summary

Problems solved by technology

At present, the leakage of underwater pipelines is mainly based on theoretical calculations and numerical simulations. There are few large-scale similar experiments in the laboratory, and the testing is neither convenient nor accurate. Therefore, it is necessary to invent an experimental device that can simulate underwater gas leakage and diffusion. especially important

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