Numerical Simulation And Experimental Study On The Performance Of Cyclone Separator With Axial Guide Vanes

As an important energy and raw materials,Oil and gas resources in the mining and transportation process,due to the presence of condensate and anti-condensing phenomenon,will lead to water vapor or part of the acid gas precipitation,the formation of liquid water,ice or natural gas curing hydrate,increasing the pipeline pressure drop,reducing oil and gas quality.Cyclone separator as an important gas-liquid separation equipment,are widely used in petrochemical,food,paper and many other industries.Because of cyclone separator with axial guide vanes has small radial dimension,compact structure,smaller pressure loss,improvement of recirculation flow at inlet,higher separation efficiency and stable flow field,it has become the focus of current research at present.The gas phase and particle phase of axial flow guide vane cyclone separator are firstly simulated by Fluent software in this work.The gas phase is taken as a continuous medium,with the Reynolds Stress Model(RSM).The droplets are modelled with the discrete phases model(DPM),the particle stochastic trajectory model is used in Lagrange coordinate system,and the droplet fragmentation and collision are considered.The velocity field,the pressure field and the trajectory of the droplet in the axial flow guide vane cyclone separator are simulated and analyzed numerically.Secondly,the velocity field,pressure field and pressure composition of the separation tower arraging a set of(3)type cyclone separators with axial flow vane are analyzed as well as the inhomogeneity of intake air between the single separator.Find that the single separator into the largest percentage of the volatility is 0,0522%,and can be considered exactly the same as the single separator air intake.At the same time,the separation tower efficiency under different number separators was analyzed.It is found that the increasing of the number of cyclones do not increase the separation tower efficiently.Single-cyclone and multi-cyclones,the separation efficiency is more than 90%for droplets with particle size greater than 5?m,and the separation effect is not ideal for droplets with particle size less than 5?m.Finally,applying the principle of fluid mechanics similarity,according to the ratio of 1:2.4 to build experimental platform,verify the accuracy of the simulation results.The average deviation between the pressure drop and the simulated value of the separation tower at different inlet velocities was measured to be 6.62%,the average deviation of the separation efficiency was 1.69%.It is indicated that the numerical simulation method is feasible in the numerical simulation of the internal flow field of the cyclone separator.And compared with tangential inlet cyclone separator,it is proved that the axial flow guide vane cyclone separator have a great advantage of low pressure drop,high separation efficiency(particle size less than 10?m).under the single separator and multi-separator combination.