Effect of coalescing internal structures acting on oil-water separating performance of gravity separator

SUN Zhiqian; JIN Youhai; WANG Zhenbo; SHI Mingxian

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Effect of coalescing internal structures acting on oil-water separating performance of gravity separator

更新时间：2025-12-10

- Effect of coalescing internal structures acting on oil-water separating performance of gravity separator
- CIESC Journal Issue 9, Pages: 2386-2392(2010)
- 作者机构：
  
  中国石油大学（华东）机电工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 September 2010，
  
  Published：05 September 2010
- 稿件说明：
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SUN Zhiqian, JIN Youhai, WANG Zhenbo, et al. Effect of coalescing internal structures acting on oil-water separating performance of gravity separator[J]. CIESC Journal, 2010, (9): 2386-2392.
DOI：

SUN Zhiqian, JIN Youhai, WANG Zhenbo, et al. Effect of coalescing internal structures acting on oil-water separating performance of gravity separator[J]. CIESC Journal, 2010, (9): 2386-2392. DOI：

摘要

为考察聚结构件结构对油水重力分离器分离性能的影响，在理论分析的基础上，采用错搭波纹板、开孔波纹板以及网状波纹板进行了室内实验研究，并从停留时间、油相浓度分布、分离效率、聚结结构前后油相浓度及中位粒径差等方面进行了全面对比。结果表明，网状波纹板结构对小液滴具有较好的聚并作用，能显著提高油水分离效果，缩短停留时间;开孔波纹板次之，而错搭波纹板效果最差。实验发现，良好的亲油疏水性、具有足够的油滴上浮通道以及与混合相具有较大的接触面积，是性能优良的聚结结构所应具备的三个条件。上述工作为进一步开发高效紧凑的油水重力分离设备提供了依据。

Abstract

Based on theoretical analysis

a laboratory test was carried out using several coalescing internals with different structures to investigate the effect of coalescing internals acting on the separating performance of oil-water gravity separator.Residence time

oil concentration distribution

separating efficiency

oil concentration and median particle diameter difference in front and at the back of different coalescing structures were comprehensively contrasted.Results indicate that

reticulate corrugated plate has a good coalescing effect for small droplets

which can significantly improve oil-water separating efficiency and shorten residence time.The effect of opening corrugated plate is worse

while joggled-lap corrugated plate is the worst among the three structures.It was found that excellent performance of the coalescing structures should satisfy three conditions.Firstly

having good oleophilic and hydrophobic property; secondly

having sufficient channels for oil droplets to rise upward; thirdly

having larger contact area for mixture phase.This work provides good foundation for further development of effective and compact oil-water gravity separation equipment.

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