Mechanism Analysis and Numerical Simulation of New-Typed Oil Fume Purification Device
According to the problems of existing oil fume purifying technology, this paper intends to present a new kind of complex purification device that combining the three mechanisms of inertia separation, filtration and wet scrubbing. In order to further research on the performance of the device, the flow field in the device was simulated by using the Computational Fluid Dynamics (CFD). The FLUENT was applied to simulate the flow field in the device. In the numerical simulation, the fan blades were described by the multiple reference frame model (MRF), the filter was calculated by the porous media model, and the movement of particles was simulated using the particles random trajectory model (DPM). Comparing and analyzing the pressure distributing and velocity distributing as well as the movement of particles with different rotational speed of the fan blades, we can find out some rules. The fan speed faster, the effect of inertia separation is better, the oil fume concentration lower faster, and the purification separation results is better, but meanwhile the pressure loss of device also increase rapidly. So the best rotational speed should be set to ensure the device has good effect of inertia separation, and pressure loss is small. Through the CFD simulation calculated, the rotate speed should be controlled between 300 r/min to 400 r/min when the ventilation of purification equipment probably in 1 500 m3/h. This study verifies the feasibility of the complex oil fume purification theory and provides a theoretical reference for optimization design of the oil fume purification device.
YUAN Changming CHE Huizi
College of Quality and Safety Engineering , China Jiliang University, Hangzhou 310018, Zhejiang, China
国际会议
2011 International Symposium on Environmental Science and Technology(2011 环境科学与技术国际会议 2011 ISEST)
广东东莞
英文
403-408
2011-06-01（万方平台首次上网日期，不代表论文的发表时间）