600MW火电机组间接空冷塔流动换热特性数值研究-《郑州大学学报(工学版)》

文章信息/Info

Title:: Numerical Simulation on the Flow Field and Heat Transfer Characteristics of Indirect Air-cooling Tower in 600MW Supercritical Thermal Power Unit

作者:: 王为术; 张雨飞; 常娜娜; 华北水利水电大学热能工程研究中心,河南郑州,450011;华北水利水电大学热能工程研究中心,河南郑州,450011;华北水利水电大学热能工程研究中心,河南郑州,450011

Author(s):: North China university of water conservancy and hydropower thermal engineering research center, zhengzhou, henan province, 450011; North China university of water conservancy and hydropower thermal engineering research center, zhengzhou, henan province, 450011; North China university of water conservancy and hydropower thermal engineering research center, zhengzhou, henan, 450011

Keywords:: Environmental wind speed; Air cooling tower; Heat release. The numerical simulation

摘要:: 采用Fluent6.3软件对600 MW超临界火电机组自然通风间接空冷塔流动和换热性能进行了数值模拟,对不同的环境风速下空冷塔内流场特性和换热规律进行了研究.研究结果表明,空冷塔在风速为零的情况下流场较为稳定,散热量和通风量最大,随着风速的增大,空冷塔内流场发生了较大的变化,散热量和通风量都呈现下降趋势,对间接空冷机组的运行产生不利影响.研究结果为大型电站锅炉间接空冷塔的运行改造提供了理论依据.

Abstract:: Fluent6.3 software was used to numerically simulate the flow and heat transfer performance of the natural ventilation indirect air cooling tower of a 600 MW supercritical thermal power unit, and the flow field characteristics and heat transfer laws in the air cooling tower under different ambient wind speeds were studied. The research results show that , the flow field of the air-cooling tower is relatively stable when the wind speed is zero, and the heat dissipation and ventilation are the largest. With the increase of wind speed, the flow field in the air-cooling tower changes greatly, and the heat dissipation and ventilation show a downward trend. , which has an adverse effect on the operation of the indirect air-cooling unit. The research results provide a theoretical basis for the operation transformation of the indirect air-cooling tower of large-scale power plant boilers.