超超临界机组补汽阀选型设计与调峰运行技术研究Research on Selection Design of Overload Valve and Peak Regulation Operation Technology of an Ultra-supercritical Unit
余海鹏,赫广迅,刘鑫,孙嘉
YU Haipeng,HE Guangxun,LIU Xin,SUN Jia
摘要(Abstract):
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.
关键词(KeyWords):
补汽阀;开启点;调峰;一次调频
overload valve;opening point;peak regulation;primary frequency regulation
基金项目(Foundation):
作者(Author):
余海鹏,赫广迅,刘鑫,孙嘉
YU Haipeng,HE Guangxun,LIU Xin,SUN Jia
DOI: 10.19585/j.zjdl.202206014
参考文献(References):
- [1]马瑞,刘皓明,李知艺.“能源互联网下的主动配电网源-网-荷-储协同规划、运行和控制研究”专栏特约主编寄语[J].浙江电力,2021,40(9):1-2.
- [2]白小红.电厂热力系统节能减排策略分析[J].能源与节能,2018(6):64-65.
- [3]殷兆广.1 030 MW机组一次调频性能分析及优化[J].浙江电力,2016,35(7):53-56.
- [4]韩岗,陈梁,徐晓辉.浅析1 000 MW机组供热一次调频控制应用[J].上海节能,2019(8):656-661.
- [5]海浩,赵洪健.上汽-西门子机型660MW机组一次调频性能优化探讨[J].仪器仪表用户,2019,26(9):99-102.
- [6]范谊章,康明,吴仕芳.超超临界汽轮机补汽系统优化研究[J].热力透平,2021,50(2):93-96.
- [7]钱海川,韩岗,陈梁.过载补汽阀在1 000 MW汽轮发电机组上的综合应用[J].上海节能,2019(8):652-655.
- [8]秦攀,包劲松,张宝,等.超超临界汽轮机灵活性运行策略研究与展望[J].浙江电力,2018,37(4):75-80.
- [9]吴正勇.上汽-西门子型百万千瓦超超临界汽轮机配汽方式优化试验研究[J].应用能源技术,2017(10):19-21.
- [10]韩丰胜,余松,张萌远,等.汽轮机补汽阀结构设计数值模拟研究[J].汽轮机技术,2018,60(6):411-413.
- [11]余海鹏,康剑南.660 MW等级超超临界机组的进汽调节方式分析[J].内蒙古科技与经济,2017(16):108-109.
- [12]李兴华,段金鹏.660 MW高效超超临界机组配汽方式研究及应用分析[J].汽轮机技术,2020,62(3):227-230.
- [13]何海宇,范世望,彭泽瑛.1 000 MW高效宽负荷率超超临界机组设计点优化研究[J].动力工程学报,2018,38(10):800-806.
- [14]包伟伟,高敏,庞浩城,等.1 000 MW超超临界机组补汽调节技术经济性分析[J].发电设备,2016,30(1):11-15.
- [15]王丽娜,方匡坤,钱林锋,等.1 000 MW机组0号高压加热器全负荷高效回热技术及其应用[J].浙江电力,2016,35(7):41-44.
- [16]吴坡,张江南,贺勇,等.发电机组一次调频性能优化及应用[J].浙江电力,2019,38(6):64-71.
- [17]张小琴.基于MATLAB的超超临界汽轮机机组一次调频仿真分析[J].热力透平,2020,49(1):75-80.
- [18]王洪鹏,赵洪羽.能够精确调节流量的新型汽轮机补汽阀研究[J].汽轮机技术,2021,63(4):261-263.