Visual experiment device for pipeline flow safety hydrate characteristic research and leakage monitoring

Abstract

The invention discloses a visual experimental device for pipeline flow safety hydrate characteristic research and leakage monitoring. The visual experimental device comprises a gas transmission system which is used for providing natural gas and can continuously supply natural gas; a water conveying system which is used for storing a water source and can continuously supply water; a gas-liquid mixing system which is used for mixing natural gas and a water source in advance at normal temperature; a model body system which is used for researching the dynamic characteristics in the natural gas hydrate generation and decomposition process under the low-temperature condition and observing the macroscopic morphological change or a leakage system which is used for monitoring the underwater leakage condition of a test pipe section so as to obtain the leakage rule of underwater leaked gas; a pressure return system which is used for reducing the pressure of a loop outlet; a gas-liquid separation system which is used for separating the gas-liquid mixture; and a gas return system which is used for recovering the separated natural gas and ensuring that the gas can be recycled. According to the invention, the characteristics of a hydrate can be researched and the gas leakage of a pipeline can be monitored under laboratory conditions.

Description

technical field [0001] The invention relates to a hydrate pipeline loop experiment device, in particular to a visualization experiment device for research on hydrate characteristics of pipeline flow safety and leakage monitoring. Background technique [0002] Natural gas hydrate refers to a cage-shaped solid crystal formed by natural gas (usually mainly methane) and water at low temperature and high pressure, and is widely distributed in sea areas and permafrost areas. Hydrate has attracted widespread attention as a new type of clean alternative energy with huge reserves. With the deepening of hydrate research, especially the research and development of natural gas hydrate characteristics, the application prospects of natural gas hydrate storage and transportation, mixed gas separation, etc. are increasingly emerging. Pipeline transportation has the advantages of continuous and efficient, safe and stable, economical and pollution-free, but the actual transportation conditio...

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Problems solved by technology

Existing research on underwater pipeline leakage is mainly theoretical calculation and numerical simulation. There are few experimental devices for simulating pipeline leakage in the laboratory, and there are certain errors in the test. Therefore, research work in this area needs to be deepened urgently.

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