防风网对直接空冷机组的防风效果分析  

Analysis on the Principle of Windshield to Prevent Wind in Direct Air Cooled Condenser

作　　者：郑伟[1] 陈海平[1] 张才 

机构地区：[1]华北电力大学,北京102206 [2]河北国华沧东发电有限公司,河北沧州061113

出　　处：《东北电力技术》2012年第9期37-39,共3页Northeast Electric Power Technology

摘　　要：阐述了环境风对空冷凝汽器散热的影响及防风网的防风原理,分析了防风网在空冷单元的防风效果,加装防风网可降低空冷风机入口风速,增大空冷风机吸入的空气量,进而提高空冷单元的换热效率。并就防风网的布置和结构形式对空冷岛防风效果的影响进行分析,防风网的开孔率和高度均对空冷单元的换热效率有一定影响。It summarizes the influence of ambient wind on air-cooled condenser and the working principle of windbreak net, analyzes the effect of the windbreak net in the air-cooled unit, and it is concluded that the installation of windbreak net can reduce the inlet wind velocity and increase the amount of air inhaled by the air-cooled fan, thus improving the heat transfer efficiency of the air-cooled unit. The passage also analyzes how the arrangement and structure of the windbreak net influence the windbreak effect of the air-cooled island, and the pierced rate and the height of windbreak net have certain influence on the heat transfer efficiency of the air-cooled unit.

关 键 词：直接空冷凝汽器 环境风 防风网 开孔率 

分 类 号：TM264.1[一般工业技术—材料科学与工程] TM621.9[电气工程—电工理论与新技术]