Two-stage continuous natural gas hydrate preparation system based on torque measurement

Abstract

The invention belongs to the technical field of hydrate application, and provides a two-stage continuous natural gas hydrate preparation system based on torque measurement, wherein the system comprises a primary and secondary reaction kettle series connection system, an alarm system, a torque measurement system, a circulating cooling system, a stirring system, a spraying system, an adjusting system, a three-phase separation system and a computer data acquisition system. According to the method, two-stage reaction is adopted, so that the problems of low hydrate nucleation rate and long period are effectively solved; meanwhile, torque measurement is combined, and a torque sensor is arranged, so that the problem of pipeline blockage caused by the fact that a large amount of nucleation in a first-stage reaction kettle cannot be discharged in time is solved, the amount of water and natural gas in the reaction kettle is controlled, stirring heat caused by the large amount of nucleation is reduced, and the negative influence on hydrate nucleation caused by the heat effect is completely eradicated.

Description

technical field [0001] The invention belongs to the technical field of hydrate application and relates to a two-stage continuous natural gas hydrate preparation system based on torque measurement. Background technique [0002] Natural gas hydrate is an ice-like white crystalline solid formed by the combination of natural gas and water under low temperature and high pressure conditions. It is a natural gas molecule wrapped in a cage structure composed of water molecules. When natural gas is decomposed from hydrate, each unit volume of gas hydrate can produce 150-180 unit volume of natural gas and 0.8 unit volume of water. Compared with ordinary traditional fuels, natural gas hydrate has the advantages of high gas storage density, high calorific value, low pollution, and easy transportation. Natural gas hydrate (NGH) is mainly distributed in the deep sea and permafrost, with huge reserves, and is an important energy source in the new century. Among them, the high-density gen...

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Problems solved by technology

[0005] However, the hydrate storage and transportation of natural gas currently studied by researchers is based on laboratory research conditions, and is rarely combined with practical application production. The problems that need to be solved in practical applications are: the inability to quickly prepare a large number of hydrate crystal nuclei, resulting in hydrate There are problems such as long generation cycle, inability to remove reactants in a timely and effective manner, and high-density formation of natural gas hydrates. In practical applications, there is a lack of simultaneous separation of gas, liquid, and solid three-phase devices.

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