Shear Flow Of Supersonic Gas Separator Structure Design And Numerical Simulation,

Supersonic Separator is a device used for gas dehydration which has been widely used in the transportation of natural gas in the virtue of simple structure, high efficiency, low energy consumption and unattended. The axial Supersonic separator used in Modern industrial has rear or front wing. the one with rear wing produces strong shock waves which affect the stability of the system and the one with front wing needs higher requirement for design of the wing without enough centrifugal acceleration. Inspired by the vortex tube's inlet, the condition of gas separator without the supersonic wing is simulated with Fluent when the direction of inlet is tangential rather than axial direction.First, principle of supersonic separator is analyzed and discussed. Then, parameters of the traditional axial separator have been optimized on which the physical model was established correspondingly. the model meshed with GAMBIT was simulated with Fluent.The velocity, pressure field, temperature field are analyzed, and the rear wing supersonic separator at x= 0.19m in the axial direction produced a shock wave which is consistent with Previous researchers'. Then the same model without supersonic wing was simulated with Fluent whose inlet nozzle is designed with reference to the vortex tube.The results show that high-pressure air rotates stability with high speed in the separator, where no shock wave produced; tangential velocity of air near the inlet is up to 250m/s, the tangential velocity of air flow gas-liquid separation segment remained unchanged is up to 150m/s, which is higher than that of supersonic separator with front wing, and its swirl ratio is up to 0.27; the lowest temperature in the gas-liquid separation section is up to 140k which is conducive to condensation of water.