于晓龙,张进军,程继舜,孙永平
YU Xiao-long1, ZHANG Jin-jun1, CHENG Ji-shun1, SUN Yong-ping2 (1. Zhejiang Datang International Wushashan Power Generation Co.

• 1:浙江大唐乌沙山发电有限责任公司
• 2:浙江省电力试验研究院

摘要(Abstract)：

某电厂超临界600MW机组基建投产以来,高、低压凝汽器压差一直较小,分析判断认为其根源是凝汽器抽空气管路设计配置不合理,导致低压凝汽器空气抽出受阻,从而出现传热恶化的现象。通过调整节流孔板孔径等措施,恢复了凝汽器的双背压设计功能,提高了机组运行效率。
Pressure difference between HP and LP condensers is always low since the capital construction and operation of 600 MW Unit. The analysis result shows that it is because of unreasonable design and configuration of air extraction tube for condenser and it causes extracted air of LP condenser to be blocked and deterioration of heat transfer. Dual-pressure design function of condenser is restored and unit operation efficiency is improved by adopting measures like adjusting diameter of throttle orifice.

关键词(KeyWords)： 双背压凝汽器;压力差异;抽空气管路;改进
dual-pressure condenser; pressure difference; air extraction tube; improvement

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 于晓龙,张进军,程继舜,孙永平
YU Xiao-long1, ZHANG Jin-jun1, CHENG Ji-shun1, SUN Yong-ping2 (1. Zhejiang Datang International Wushashan Power Generation Co.

DOI: 10.19585/j.zjdl.2010.08.008

参考文献(References)：

• [1]华东六省一市电机工程(电力)学会,600MW汽轮机设备及其系统[M].北京:中国电力出版社,1999.
• [2]中国动力工程学会,火力发电设备技术手册[M].北京:机械工业出版社,1998.