Characteristic Study On Vaneless Integral Particle Separator

The present paper deals with the numerical simulation about two-phase flow in the inlet particle separator without vanes, with the aid of compute software—FLUENT. Researches are conducted to find out the influence on separation efficiency and inlet total pressure loss, caused by inner and outer walls, wall curvature and the position of splitter. Computations and analysis contrast are also carried out about two different representative inlet particle separator models.An experiment system is designed and processed, to do experimental investigation on separation efficiency and inlet total pressure loss of two different inlet particle separator, under the conditions of different concentration of sands, different inlet velocity, different SCR. Then experimental results are compared with the computational results which are obtained in the same conditions.It is indicated that separation efficiency increases appreciably when the sand concentration augments, while the inlet total pressure loss keeps the same. The average separation efficiency of the second model is 5.27% higher than the first model, while the average inlet total pressure loss is 3.21% lower than the first model. The separator efficiency of inlet particle separator increases linear when the inlet velocity of inlet particle separator increases, so is the inlet total pressure loss. When separate C-spec. sand, the average separation efficiency of the second model is 6.89% higher than the first model, while the average inlet total pressure loss is 1.05% lower than the first model; when separate AC coarse dust, the average separation efficiency of the second model is 3.36% higher than the first model, while the average inlet total pressure loss is 1.01% lower than the first model. The separator efficiency of inlet particle separator increases linear when the SCR of inlet particle separator increases, so is the inlet total pressure loss. The average separation efficiency of the second model is 7.27% higher than the first model, while the average inlet total pressure loss is 0.01% lower than the first model. Both the computation results and the experimental results show that the second model's performance is better than then first model's. The computational results accord with the experimental results.The research work on this paper offers theoretical references for the improvement in design of vaneless inlet particle separator. The authentic experimental data lay a foundation for the further studies in the future as well.