1 000 MW汽轮机快速冷却的应用与分析

doi:10.11930/j.issn.1004-9649.201806136

中国电力 ›› 2019, Vol. 52 ›› Issue (2): 158-164,171.DOI: 10.11930/j.issn.1004-9649.201806136

1 000 MW汽轮机快速冷却的应用与分析

吴昕, 李磊, 王争明, 梅隆, 宋亚军

国网冀北电力有限公司电力科学研究院(华北电力科学研究院有限责任公司), 北京 100045

收稿日期:2018-06-30 修回日期:2018-08-02 出版日期:2019-02-05 发布日期:2019-03-27
作者简介:吴昕(1992-),男,硕士,助理工程师,从事火力发电厂节能优化及汽轮机调试研究,E-mail:274308390@qq.com

Analysis on Rapid Cooling Technology in a 1 000 MW Steam Turbine and its Application

WU Xin, LI Lei, WANG Zhengming, MEI Long, SONG Yajun

State Grid Jibei Electric Power Co., Ltd. Research Institute (North China Electric Power Research Institute Co., Ltd.), Beijing 100045, China

Received:2018-06-30 Revised:2018-08-02 Online:2019-02-05 Published:2019-03-27

摘要/Abstract

摘要： 以某1 000 MW超超临界汽轮机为研究对象，分析了该机组的自然冷却过程并确定了该机组的自然冷却时间。采取炉侧引入空气的方法，设计了快速冷却方案。基于该设计方案，成功进行了1次汽轮机的快速冷却，验证了方案的可行性。结果表明，与自然冷却相比，此次快速冷却可以节约7天左右的停机冷却时间；同时，当采用炉侧引入空气的方案时，需要视再热管道中空气与中压转子的温度差来决定中压缸的快速冷却投入。

关键词: 1000 MW超超临界汽轮机, 自然冷却, 快速冷却

Abstract: In this paper, the natural cooling process of a 1 000 MW ultra-supercritical steam turbine is analyzed and its natural cooling time is determined. A rapid cooling scheme, which inhales air from the boiler, is designed. Based on the scheme, the rapid cooling of the steam turbine is successfully carried out, verifying the feasibility of the scheme. The results show that the rapid cooling can save a time of about 7 days compared with the natural cooling; meanwhile, to adopt the scheme of inhaling air from the boiler, the difference between the air temperature and the IP rotor temperature must be considered when determining the rapid cooling of the IP cylinder.

Key words: 1 000 MW ultra-supercritical turbine, natural cooling, rapid cooling

中图分类号:

TK267

吴昕, 李磊, 王争明, 梅隆, 宋亚军. 1 000 MW汽轮机快速冷却的应用与分析[J]. 中国电力, 2019, 52(2): 158-164,171.

WU Xin, LI Lei, WANG Zhengming, MEI Long, SONG Yajun. Analysis on Rapid Cooling Technology in a 1 000 MW Steam Turbine and its Application[J]. Electric Power, 2019, 52(2): 158-164,171.

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https://www.electricpower.com.cn/CN/Y2019/V52/I2/158

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1 000 MW汽轮机快速冷却的应用与分析

Analysis on Rapid Cooling Technology in a 1 000 MW Steam Turbine and its Application

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[1]	苏国强，王东辉，施俊. 西门子1 000 MW汽轮机快速冷却系统应用与分析[J]. 中国电力, 2015, 48(11): 7-12.
[2]	陈凡夫, 冯庭有. 百万千瓦机组新型组合快速冷却技术[J]. 中国电力, 2012, 45(3): 54-57.

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