Study On The Cyclone Separator By Numerical Simulation

The Gas-Liquid Cyclone separator is widely used in practical engineering. According to the need of delayed coking,we need to exploit a separator which can separate the high temperature oil and gas quickly. The liquid flow is very high, and the temperature is very high. So we adopt the general cyclone separator to separate the liquid quickly. So this thesis mainly research the separator performance under the high liquid content and provide reference for the design of the cyclone separator.we adopt the method of numerical simulation. we compare the axial flow guide vane cyclone separator velocity and pressure of simulation with experiment. The difference is small. So we think of the simulation software can be used. We also study the speed and pressure drop characteristics of the single phase and two phase of the cyclone separator and grasp the principle of cyclone separator.Studying the effect of operating conditions and structural condition of the cyclone separator. The cyclone separator inlet velocity has the best velocity between 20 ~ 25 m/s. The particle size is greater, the separation is better. The inlet concentration is too large to separation regardless of the collision and broken. The liquid density is larger, the separation is better. Rectangular entry form is good for separation; When the gas outlet diameter is greater, the separation is adverse. The gas outlet insertion depth is moderate, if too small the short circuit flow is very serious, but too long will destroy the cyclone. Larger liquid outlet diameter benefit separation efficiency, if the diameter is too larger, the gas is too much and the velocity is low.Establishing the experimental device and performing the gas-liquid two phase experiment. Researching the influence of inlet velocity and diversion ratio on pressure drop and the liquid feed rate and split ratio on the separator separation efficiency. The split ratio increase, the gas outlet pressure drop increase but the liquid outlet pressure decreases. The liquid flow increase, the pressure drop and separation efficiency decrease.