低压缸切缸技术在供热机组中的应用  

Application of Low Pressure Cylinder Cutting-Off Technology in Heating Units

作　　者：马义良[1] 陈晓宇 李宇锋 张宏涛[1] 翁振宇[1] MA Yiliang;CHEN Xiaoyu;LI Yufeng;ZHANG Hongtao;WENG Zhenyu(Harbin Turbine Company Limited,Harbin 150046,China;State Power Investment Corporation Limited,Beijing 102209,China)

机构地区：[1]哈尔滨汽轮机厂有限责任公司,哈尔滨150046 [2]国家电力投资集团公司,北京102209

出　　处：《热力透平》2020年第3期186-189,共4页Thermal Turbine

摘　　要：针对冬季供热机组深度调峰面临的问题,通过对低压缸切缸后叶片的安全性风险分析,给出了最佳的应对措施,推出了哈汽的低压缸切缸供热改造技术,并成功应用在多个电厂。整个供暖期的长时切缸实践验证了哈汽低压缸切缸技术方案的严谨性、可靠性和稳定性。Considering the current problems on the deep peak-load regulation during the winner period in thermal power units,a best solution is given based on the safety risk analysis of the blades under the low pressure cylinder cutting-off condition,and the heating retrofitting technology of the low pressure cylinder cut-off in Harbin Turbine Company(HTC)is introduced.The technology has been successfully applied in many power plants,indicating reasonability,reliability and stability of low pressure cutting technology with the experience of a long-term cylinder cutting-off test during the whole heating period.

关 键 词：供热改造 低压缸切缸 末级叶片 动应力 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]