Numerical study on a natural draft wet cooling tower with central catheter pipes

ZHOU Lanxin; WU Ruikang; DING Binkai; CHEN Jian

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Numerical study on a natural draft wet cooling tower with central catheter pipes

Thermal Power Generation Vol. 43, Issue 7, Pages: 27-31(2014)

更新时间：2025-09-28

- Numerical study on a natural draft wet cooling tower with central catheter pipes
- 作者机构：
  
  1. 华北电力大学电站设备状态监测与控制教育部重点实验室
  2. 国电蓬莱发电有限公司
  3. 国电山东石横发电厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621
- Published：2014
- 稿件说明：
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ZHOU Lanxin, WU Ruikang, DING Binkai, et al. Numerical study on a natural draft wet cooling tower with central catheter pipes[J]. Thermal Power Generation, 2014, 43(7): 27-31.
DOI：

ZHOU Lanxin, WU Ruikang, DING Binkai, et al. Numerical study on a natural draft wet cooling tower with central catheter pipes[J]. Thermal Power Generation, 2014, 43(7): 27-31. DOI：

摘要

针对现有冷却塔中央区域换热效果差的问题

提出了在塔内加装中央补风管的方案。将空气直接送入冷却塔中心区域

加强塔内换热。以某1 000MW机组冷却塔为例

采用Fluent软件建立冷却塔三维热力性能计算模型。计算结果表明

加装补风管后冷却塔出塔水温比改造前平均降低0.433℃

机组发电量增加2~3MW。

Abstract

Aiming at enhancing heat transfer in central area of the present cooling towers

new scheme that installing central catheter pipes in the tower was put forward.In this scheme

the fresh air is directly transported to central area of the cooling tower to enhance the heat and mass transfer.Taking a natural draft wet cooling tower for a 1 000MW unit as the example

its three-D thermal performance calculation model was established by the FLUENT software.The analysis show that

after the catheter pipes were installed

the outlet water temperature of the cooling tower dropped by an average of 0.433℃

and the unit power generation increased by 2to 3MW.

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