600 MW直接空冷凝汽器的度夏与防冻能力探讨  

Investigation on Summer Spending and Anti-freezing Capability of 600 MW Direct-air-cooling Condensers

作　　者：朱大宏[1] 雷平和[1] 

机构地区：[1]北京国电华北电力工程有限公司,北京市100011

出　　处：《电力建设》2006年第9期33-36,共4页Electric Power Construction

摘　　要：根据大型直接空冷电厂的设计经验,对直接空冷凝汽器防冻能力和度夏能力提出看法。直接空冷系统的度夏能力在设计时应综合考虑7个因素,其中的外界环境因素主要是风和污垢。在系统度夏能力上,空冷面积和风机通风能力的选择起到主导作用,可采取7种措施。直接空冷系统的防冻能力在设计时要考虑4个因素。采取的设计措施包括使用更具有防冻性能的管束、采用逆流空冷凝汽器等9种不同方式。Based on the design experiences of large - sized direct - air - cooling power plants the authors put forward opinions on the summer spending and anti - freezing capability of the direct - air cooling condensers. 7 factors should be considered generally in design of the summer spending capability of the direct - air - cooling system, of which wind and dirty are the main factors for the external environment factors. For the summer spending capability the air cooling area and ventilation capacity of fans have played a major role and 7 kinds of measures can be taken. In design of the anti - freezing capability of the direct - air - cooling system 4 factors should be considered. The design measures include application of anti - freezing pipe bundles, reverse flow air condensers and other different methods.

关 键 词：直接空冷系统 防冻 度夏 对策 

分 类 号：TK264.11[动力工程及工程热物理—动力机械及工程]