中国电力 ›› 2016, Vol. 49 ›› Issue (11): 112-118.DOI: 10.11930/j.issn.1004-9649.2016.11.112.07

• 发电 • 上一篇    下一篇

1 000 MW二次再热示范机组降压冲管研究

陈有福, 陶谦, 管诗骈, 丁建良   

  1. 江苏方天电力技术有限公司,江苏 南京 211102
  • 收稿日期:2016-03-15 出版日期:2016-11-10 发布日期:2016-12-09
  • 作者简介:陈有福(1977—),男,江西上犹人,硕士,高级工程师,从事火力发电厂调试和试验方面工作。E-mail: youfuchen7977@163.com

Study on Depressurized Steam Blowing of Demonstrative 1 000-MW Unit with Double Reheat Cycles

CHEN Youfu, TAO Qian, GUAN Shipian, DING Jianliang   

  1. Jiangsu Frontier Electric Technology Co., Ltd., Nanjing 211102, China
  • Received:2016-03-15 Online:2016-11-10 Published:2016-12-09

摘要: 二次再热是超超临界燃煤发电机组研发的关键技术。根据国电泰州电厂1 000 MW二次再热示范机组特点,提出了采用过热器、一次再热器和二次再热器分别吹扫的2阶段分段降压冲管方法。针对该冲管方案进行了冲管系统工艺设计及主要参数选定,结合实际冲管中锅炉运行状态分析了冲管过程中各主要参数特性,并详细阐述该冲管方式下锅炉运行参数的合理控制及相关注意事项,为该类型锅炉降压冲管提供了很好的借鉴和指导作用。

关键词: 1 000 MW, 火电机组, 二次再热, 降压冲管, 工艺设计, 参数控制

Abstract: Double reheating is the key technology developed for the ultra-supercritical coal-fired units. According to the characteristics of the demonstrative 1 000-MW unit with double reheat cycles, in this article, the two-stage depressurized steam blowing approach is proposed, which is to blow the primary and the secondary reheaters as well as the superheaters separately. The process design and the parameter selection are performed for this approach. With the boiler operating situation during blowing being taken into account, the characteristics of the parameters are analyzed with reasonable control methods and attentions over the parameters being presented in detail. The study may provide instructions for depressurized steam blowing in the boilers of the same type.

Key words: 1 000 MW, thermal coal-fired unit, double reheat cycles, depressurized steam blowing, process design, parametric control

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