粮油食品科技

中国科技核心期刊
美国EBSCO学术数据库收录期刊
美国《化学文摘》(CA) 收录期刊

文丘里管在棉籽油预处理中的结构设计与应用
DOI:
作者:
作者单位:

作者简介:

通讯作者:

基金项目:


Structural design and application of Venturi tube in cottonseed oil preprocessing
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
    摘要:

    基于FLUENT软件,采用标准k-ε模型,以棉籽油为介质,对文丘里管内空化流场进行数值模拟,计算文丘里管内空化区的空化数和汽含率分布,研究文丘里管的结构参数变化对空化效果的影响。结果表明,文丘里管的结构对空化效果有着明显的影响,空化效应随着入口锥角的增大、喉部长度的减小而增强,喉部直径与出口锥角对空化效应的影响存在最适值,为文丘里管在油脂中应用时的结构优化设计提供了依据。同时通过棉籽油水力空化验证实验发现,水力空化对棉籽油中的棉酚脱除有非常明显的效果,且脱除率随着文丘里管入口锥角的增大而提高,即空化效应越强脱除率越高,与模拟结果相一致。

    Abstract:

    Based on the computational fluid dynamics software FLUENT, using the standard k-ε model, with the cottonseed oil as medium, the numerical simulations of the cavitation flow fields in Venturi tubes were established. The cavitation number and the distribution of gas-holdup of the cavitation region in the Venturi tubes were computed. The effect of the structure of Venturi tubes on cavitation was researched. The results showed that the structure of Venturi tubes had an obvious effect on the cavitation, the cavitation effect enhanced along with the increase of inlet angle and decrease of the laryngeal length, and the diameter of laryngeal and outlet angle had the best value on the cavitation effect, which provided a support for optimizing the design of the structure of Venturi tubes applied in oils. At the same time, it was found by the verification experiment of the hydrodynamic cavitation of cottonseed oil that the hydrodynamic cavitation had a significant effect on the removing of gossypol, and the removal rate increased along with the increase of inlet angle of the Venturi tube, which indicated that the stronger the cavitation effect was, the higher the removal rate was. The results obtained by the experiments were similar to those by numerical simulation.

    参考文献
    相似文献
    引证文献

当期目录


年第卷第

文章目录

过刊浏览

引用本文

黄 群,刘昭明,程谦伟,覃日珍,孟陆丽,黄翠姬.文丘里管在棉籽油预处理中的结构设计与应用[J].粮油食品科技,2016,24(4):42-46.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2016-07-28
  • 出版日期: