东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2017, Vol. 38 ›› Issue (6): 819-822.DOI: 10.12068/j.issn.1005-3026.2017.06.012

• 材料与冶金 • 上一篇    下一篇

逆流湿式自然通风排烟冷却塔的数值模拟

牛冉1， 李林敏1， 闻学宇2， 李宝宽1   

  1. (1. 东北大学 冶金学院， 辽宁 沈阳110819； 2. 中国能源建设集团 辽宁电力勘测设计院有限公司， 辽宁 沈阳110179)
  • 收稿日期:2015-12-30 修回日期:2015-12-30 出版日期:2017-06-15 发布日期:2017-06-11
  • 通讯作者: 牛冉
  • 作者简介:牛冉(1990-)，女，辽宁阜新人，东北大学博士研究生； 李宝宽(1963-)，男，辽宁辽阳人，东北大学教授，博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(51574068).

Numerical Simulation of Counter Flow Natural Draft Wet Cooling Tower with Flue Gas Injection

NIU Ran1， LI Lin-min1， WEN Xue-yu2， LI Bao-kuan1   

  1. 1. School of Metallurgy， Northeastern University， Shenyang 110819， China； 2. Liaoning Electric Power Survey and Design Institute Ltd， China Energy Engineering Group， Shenyang 110179， China.
  • Received:2015-12-30 Revised:2015-12-30 Online:2017-06-15 Published:2017-06-11
  • Contact: LI Bao-kuan
  • About author:-
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摘要： 基于气液两相间传热传质及流动理论，针对冷却塔内不同区域的工作特性，建立了加入烟道后逆流湿式自然通风冷却塔三维数学模型.采用欧拉-拉格朗日方法对塔内连续相和离散相运动进行分析，考察了烟道对冷却塔性能的影响，同时研究不同侧风速度下排烟冷却塔的工作状态，将所得结果与传统冷却塔进行对比.结果表明:常规冷却塔内加入排烟管会增强冷却塔的冷却效果；侧风会减小冷却水在冷却塔中的温降且不利于塔口烟气排放；侧风会加剧冷却塔上部内壁面腐蚀情况.

关键词: 烟冷却塔, 数值模拟, 多相流, 传热传质, 侧风

Abstract: Aiming at working characteristics of different zones in cooling tower， a three-dimensional numerical model of counter flow natural draft wet cooling tower with flue gas injection was established based on the theories of heat/mass transfer and flow between air and water. The motion of continuous and dispersed phases in cooling tower was investigated by Euler-Lagrange approach and the effect of cooling performance by setting up flue gas injection had also been taken into account. Meanwhile， the working performance of cooling tower under diverse crosswind velocities was analyzed， in contrast with that in a traditional cooling tower without flue gas injection. The results showed that the setup of flue gas injection had positive effect on the working efficiency of cooling tower. The crosswind decreased the drop degree of cooling water， which was harmful to gas emission. Moreover， crosswind could also increase corrosion drastically near the tower outlet.

Key words: cooling tower with flue gas injection, numerical simulation, multiphase flow, heat and mass transfer, crosswind

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