中国电力 ›› 2017, Vol. 50 ›› Issue (7): 85-.DOI: 10.11930/j.issn.1004-9649.2017.07.085.05

• 发电 • 上一篇    下一篇

深度调峰下燃煤机组运行方式对能耗的影响

章良利1, 李敏1, 周晓蒙2, 郦宜进1, 杨建国2, 赵虹2, 施浩勋3   

  1. 1. 浙江浙能兰溪发电有限责任公司,浙江 兰溪 321110;
    2. 能源清洁利用国家重点实验室(浙江大学),浙江 杭州 310027;
    3. 浙江浙能技术研究院有限公司,浙江 杭州 310003
  • 收稿日期:2016-12-01 出版日期:2017-07-05 发布日期:2017-07-25
  • 作者简介:章良利(1966—),男,浙江台州人,高级工程师,从事电厂热能动力与工程的管理与技术研究工作。E-mail: zhangliangli@landideal.com

Impact of the Running Modes of Coal-Fired Units on Energy Consumption in in-Depth Peak Load Cycling

ZHANG Liangli1, LI Min1, ZHOU Xiaomeng2, LI Yijin1, YANG Jianguo2, ZHAO Hong2, SHI Haoxun3   

  1. 1. Zhejiang Zheneng Lanxi Power Co., Ltd., Lanxi 321100, China;
    2. State Key Laboratory of Clean Energy Utilization (Zhejiang University), Hangzhou 310027, China;
    3. Zhejiang Zheneng Technology Research Institute Co., Ltd., Hangzhou 310003, China
  • Received:2016-12-01 Online:2017-07-05 Published:2017-07-25

摘要: 随着电网负荷峰谷差日趋增大,大型火力发电机组参与电网调峰成为必然。针对某电厂4×600 MW机组,基于供电煤耗试验结果,分析了长时间调峰运行下均等低负荷和启停两班制调峰运行方式的经济性,得到不同调峰负荷下多机组启停调峰的临界时间,为燃煤机组调峰运行提供经济优化。在全厂负荷不变的前提下,机组数越多、机组容量越大、调峰时间越长,启停两班制调峰运行方式的经济效益越显著。随着电网负荷率的下降,电厂深度调峰采用启停两班制运行方式将更具有节能减排意义。

关键词: 深度调峰, 均等低负荷, 启停两班制, 临界时间, 经济性

Abstract: Based on the test results of the net coal consumption of a 4×600 MW power plant, it is proposed that a critical time exists in the long-term peak load cycling when the low-load operation is switched to the two-shift operation. The economics of the two operation modes are analyzed. It concludes that the economic benefits will become more significant when there are more units with lager capacities and longer peak regulation running time in a power plant. Along with the load rate of power grids decreasing, the in-depth peak load cycling does not occur only at nights. Consequently, the two-shift operation deserves more attention for its benefits in energy conservation and emissions reduction.

Key words: in-depth peak load cycling, low-load operation, two-shift operation, critical time, economics

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