CARRIER PHASE FLOW IN MULTIVORTEX SEPARATOR FOR COLLECTING PARTICLES FROM NATURAL GAS
UXUAJA
DOI:
https://doi.org/10.25712/ASTU.2072-8921.2023.01.026Keywords:
separation, gas cleaning, vortices, velocity profilesAbstract
To use natural gas directly in the oil and gas fields in gas generators, it must be previously purified. The design of a multivortex separator to clean natural gas from dispersed particles is proposed. The device is suggested to being installed on a collector for gas recovery. The feature of the structure is a cylindrical pipe with holes, which forms a tubular space between the body of the device, where a vortex gas flow occurs. This gas flow structure in the device provides the process of particle separation by centrifugal forces even at low gas velocities. The centrifugal force value is determined by the tangential velocity, which in turn is determined by the gas velocity through the holes. The ratio of the flow rate through the holes to the total flow is a parameter that is difficult to predict analytically. The work aims to study numerically the structure of the carrier gas flow in the developed device. Dependencies for the gas velocity components in the multivortex separator and the gas flow ratio in the flow part of the device are obtained. The dimensionless dependence of the velocity profile on the hole relative height of the zone in the internal tube of the separator is determined. The dependence is found on the pressure drop against the gas inlet velocity and geometric parameters of the device. The pressure drop of the device is determined to not depend on the number of rows of holes in the internal tube. The obtained dependencies make it possible to determine the trajectory of dispersed particles in the intertube space of the developed multivortex separator during natural gas purification.
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Copyright (c) 2023 Maxim O. Utkin, Vitaly V. Kharkov, Guzel R. Badretdinova, Andrey V. Dmitriev
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