STUDY ON SPRAY HUMIDIFICATION AND TEMPERATURE REDUCTION METHOD FOR ENHANCING OUTPUT CAPACITY OF DIRECT AIR-COOLED UNITS

WANG Song-ling; LIU Yang; ZHAO Wen-sheng; LI Yu-hui North China Electric Power University

doi:10.19666/j.rlfd.2008.08.002

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STUDY ON SPRAY HUMIDIFICATION AND TEMPERATURE REDUCTION METHOD FOR ENHANCING OUTPUT CAPACITY OF DIRECT AIR-COOLED UNITS

更新时间：2025-09-28

- STUDY ON SPRAY HUMIDIFICATION AND TEMPERATURE REDUCTION METHOD FOR ENHANCING OUTPUT CAPACITY OF DIRECT AIR-COOLED UNITS
- Thermal Power Generation Issue 8, Pages: 5-8(2008)
- 作者机构：
  
  华北电力大学
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2008.08.002
  CLC： TM621
- Published：2008
- 稿件说明：
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WANG Song-ling, LIU Yang, ZHAO Wen-sheng, et al. STUDY ON SPRAY HUMIDIFICATION AND TEMPERATURE REDUCTION METHOD FOR ENHANCING OUTPUT CAPACITY OF DIRECT AIR-COOLED UNITS[J]. Thermal power generation, 2008, (8): 5-8.
DOI：

WANG Song-ling, LIU Yang, ZHAO Wen-sheng, et al. STUDY ON SPRAY HUMIDIFICATION AND TEMPERATURE REDUCTION METHOD FOR ENHANCING OUTPUT CAPACITY OF DIRECT AIR-COOLED UNITS[J]. Thermal power generation, 2008, (8): 5-8. DOI： 10.19666/j.rlfd.2008.08.002.

摘要

夏季环境温度过高是限制直接空冷机组出力的主要原因。采用喷雾增湿降温法可有效地降低空冷凝汽器(空凝器)入口空气温度

改善空凝器的换热效果

提高机组运行真空使其满负荷运行。通过对喷雾增湿降温法的研究及其经济性分析

并采用计算流体动力学(CFD)数值模拟软件对其效果进行验证

表明喷雾增湿降温法在直接空冷系统中增设喷雾增湿装置后

可以显著提高机组运行的经济性和安全性。

Abstract

The main cause limiting output capacity of direct air-cooled unit is the overhigh ambient temperature in summer season.The method of spray humidification and temperature reduction can effectively reduce the inlet air temperature of air-cooled condenser

improving the heat exchange effect

and enhancing vacuum of unit in operation

making the unit to operate under full capability.Through study on and econmic analysis of the spray humidification and temperature reduction method

and adopting numerical simulation software of computed fluid dynamic(CFD)

the effectiveness of said method has been verified

the results show that the additional installation of spray humidification and temperature reduction facility in direct air-cooled system can significantly enhance the economic efficiency and safety of unit in operation.

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