摘要
以超超临界机组为例,介绍了补汽阀的基本原理,总结了补汽阀设计选型经验,并针对调峰机组运行中补汽阀开启点选取和补汽阀机组参与一次调频能力进行了分析。分析结果表明,调峰机组补汽阀开启点需要根据全年负荷情况进行核算后统筹考虑,补汽阀调节的一次调频能力相比于节流调节增加53%。所研究的设计技术可以为后续带补汽阀机组设计提供参考,补汽阀开启点优化技术可以考虑在参与深度调峰的超超临界机组中进行推广,以提高机组宽负荷调峰时的运行效率。
This paper takes the ultra-supercritical unit as an example to introduce the basic principle of the overload valve and summarize the experience in its design and selection. Besides,it compares and analyzes the design load point selection of the overload valve and the capacity of the overload valve participating in primary frequency regulation in the operation of the peak shaving unit. The comparison results show that the opening point of the overload valve of the peak regulation unit needs to be calculated according to the annual load situation and then considered as a whole. The primary frequency regulation capacity of the overload valve is increased by 53% more than that of the throttling regulation. The design technology studied in this paper can be used to reference the subsequent design of units with overload valves. The opening point optimization technology of the overload valve can be promoted in the ultra-supercritical units involved in deep peak regulation to improve the operating efficiency of units during wide load peak regulation.
作者
余海鹏
赫广迅
刘鑫
孙嘉
YU Haipeng;HE Guangxun;LIU Xin;SUN Jia(Harbin Turbine Company Limited,Harbin 150046,China)
出处
《浙江电力》
2022年第6期97-102,共6页
Zhejiang Electric Power
关键词
补汽阀
开启点
调峰
一次调频
overload valve
opening point
peak regulation
primary frequency regulation
