Natural gas hydrate decomposition spiral testing device

Abstract

The invention discloses a natural gas hydrate decomposition spiral testing device, and particularly relates to the natural gas hydrate decomposition spiral testing device applied to the field of natural gas hydrate experiments. The natural gas hydrate decomposition spiral testing device can help a researcher to accurately test and analyze the situation of comprehensive influences of various environmental factors such as temperature, pressure, particle size and flow speed on the natural gas hydrate decomposition rate. The natural gas hydrate decomposition spiral testing device comprises a tank, a cover, a pressurizing device, a heating device, a stirring device, a torque sensor, a temperature and pressure sensor and a data processing system. By the adoption of the natural gas hydrate decomposition testing device, the decomposition situation of natural gas hydrate particles on the conditions of different flow speeds, temperatures, pressures and particle sizes can be comprehensively simulated, and the data are transmitted to the data processing system through the temperature and pressure sensor and the torque sensor, so that the relation curves between natural gas hydrate and the temperatures, pressures, particle sizes and flow speeds are obtained, and the decomposition rule of the natural gas hydrate is analyzed.

Description

technical field [0001] The invention relates to a natural gas hydrate decomposition screw test device, in particular to a natural gas hydrate decomposition screw test device used in the field of natural gas hydrate experiments. Background technique [0002] Natural gas hydrate is a non-stoichiometric cage-like crystalline substance produced by water and natural gas under high pressure and low temperature environment. It is an unconventional energy source with high density and high calorific value. It is generally believed that natural gas hydrate will be the most promising energy source in the 21st century The alternative energy sources of natural gas hydrates, especially marine gas hydrates, have not yet been developed due to their large quantities, and have received widespread attention. The decomposition of gas hydrates with different particle sizes under different temperature and pressure conditions has become one of the research hotspots. [0003] The decomposition rate...

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Problems solved by technology

[0003] The decomposition rate of natural gas hydrate is directly related to temperature, pressure, particle size of natural gas hydrate and the flow velocity of hydrate slurry. In order to fully study the relationship between the above parameters and the decomposition rate of natural gas hydrate, it is necessary to simulate Transformation of various factors, and collection of data on the decomposition rate of gas hydrate during the transformation process, but there is no one in the prior art that can help researchers accurately test and analyze the decomposition rate of gas hydrate affected by temperature, pressure, particle size, etc. Natural gas hydrate decomposition test device for comprehensive influence of multiple environmental factors such as flow rate and flow velocity

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