脉冲电气浮过程中非均匀流场模拟及分析

doi:10.3969/j.issn.1674-8530.2012.06.016

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Abstract Due to the largescale violent circumfluence in the traditional electrofloatation (TEF), there is interference to grown and floatation of the mixture of microbubbles and floccules, causing lower energy utilization efficiency. In this paper, a pulsed electrofloatation (PEF) method was proposed by using a square wave impulse direct current. Since the circumfluence in the inhomogeneous field generated by PEF is weaker than that by TEF, the energy utilization efficiency will be improved. Then the liquidbubble flow field of PEF was simulated by using Fluent of Ansys 13.0. The results showed that the inhomogeneous flow field in PEF has a more reasonable turbulence energy distribution and less violent circumfluence induced by microbubbles floating. This suggests that PEF is helpful to the formation and floatation of the bubblefloccules mixture. With the same electric current density, the power consumption of PEF is as low as 1/4－1/3 that of TEF, but a similar floatation effect has been reached compared with TEF, so the power consumption efficiency is much better.

Key words： pulsing electrofloatation inhomogeneous flow field circumfluence turbulence intensity Fluent

Received: 04 June 2012 Published: 30 November 2012

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	DENG Xiao-Gang
	ZHOU Xiong

Cite this article:

DENG Xiao-Gang,ZHOU Xiong. Simulation and analysis of inhomogeneous flow field in pulsed electrofloatation[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(6): 700-704.

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http://zzs.ujs.edu.cn/pgjx/EN/10.3969/j.issn.1674-8530.2012.06.016 OR http://zzs.ujs.edu.cn/pgjx/EN/Y2012/V30/I6/700

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