Numerical Simulation of Separation Properties in Cylindrical Helical Diffuser Cyclone Separator
JI Guo-qing;Sinopec Petroleum Construction Corporation;
Cylindrical helical diffuser cyclone separator was designed to solve the limitation of subsea multiphase mixing transportation. Flow field and phase distribution properties were simulated by RNG k-ε turbulence model and mixture multiphase model; the effects of thread pitch and cycles on phase distribution and pressure distribution were studied. The results showed that oil and gas mixture flowing in the helix channels can form obvious gas and liquid interface; overflow holes contribute to exhaust the gas from helix channel to gas collecting tube timely. Thread pitch is the key parameter to control the rotational intensity; the smaller the thread pitch,the greater the swirl intensity. The energy consumption is also great accordingly. The increasing number of cycles can contribute to sufficient centrifugal separation of oil and gas. The seperator designed has preferable separation quality in wide range of gas and liquid ratio.
【CateGory Index】： TE95