W/O EMULSION SEPARATION IN COMBINED ELECTROSTATIC AND CENTRIFUGAL FIELDS

Yan Jun; Mao Zongqiang; He Xiangming(Institute of Nuclear Energy Technology

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W/O EMULSION SEPARATION IN COMBINED ELECTROSTATIC AND CENTRIFUGAL FIELDS

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- W/O EMULSION SEPARATION IN COMBINED ELECTROSTATIC AND CENTRIFUGAL FIELDS
- CIESC Journal Issue 1, (1998)
- 作者机构：
  
  清华大学核能技术设计研究院!北京102201,清华大学核能技术设计研究院!北京102201,清华大学核能技术设计研究院,北京,102201
- 作者简介：
- 基金信息：
- DOI：
  CLC： Q028
- Online First：25 February 1998，
  
  Published：25 February 1998
- 稿件说明：
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Yan Jun, Mao Zongqiang, He Xiangming(Institute of Nuclear Energy Technology. W/O EMULSION SEPARATION IN COMBINED ELECTROSTATIC AND CENTRIFUGAL FIELDS[J]. CIESC Journal, 1998, (1).
DOI：

Yan Jun, Mao Zongqiang, He Xiangming(Institute of Nuclear Energy Technology. W/O EMULSION SEPARATION IN COMBINED ELECTROSTATIC AND CENTRIFUGAL FIELDS[J]. CIESC Journal, 1998, (1). DOI：

摘要

（1）对搅动下水／油型（W／O)乳状液的静电分离过程作了理论分析，从极化角度对外电场促使水滴聚结的原因给予定量解释；提出极化水滴“二分子”碰撞、聚结的假设，并阐述了极化水滴聚结的动力学过程.(2)采用一种新型（同时具有静电场和离心力场）静电分离器对水／煤油─Span80乳状液进行了分离实验．分别研究了乳状液停留时间、含水量、电压以及油相粘度等对破乳率的影响，结果表明水滴“二分子”碰撞、聚结的假设较好地描述了水滴在电场下聚结的动力学过程；破乳实验设备由于使用高速离心场替代传统重力场，使得破乳效果有明显提高．

Abstract

A theoretical analysis on the electrostation separation of stirred W/O emulsion is given.The reason for acceleraton of the coalescence between two water drops by electrostatic field is quantitatively explained.On the basis of two drop collision and coalescence

a kinetic model is proposed.Continuous demulsification experiment is reported with a new kind of separation apparatus of combined electrostatic and centrifugal field.The effects of residence time

water─phase holdup

voltage applied

oil─phase viscosity on demulsification rate are investigated.The experiment results can be explained successfully by the model proposed.The new equipment is better than the traditional apparatus in demulsification.

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