中国电力 ›› 2014, Vol. 47 ›› Issue (4): 48-51.DOI: 10.11930/j.issn.1004-9649.2014.4.48.3

• 发电 • 上一篇    下一篇

600 MW空冷供热机组主蒸汽压力寻优试验

王晋权1, 李俊2, 吕宏凯2   

  1. 1. 山西格盟安全生产咨询有限公司,山西 太原 030000;
    2. 山西兆光发电有限责任公司,山西 霍州 031400
  • 收稿日期:2013-12-26 出版日期:2014-04-30 发布日期:2015-12-22
  • 作者简介:王晋权(1983-),男,山西代县人,工程师,从事汽轮机性能优化及调整试验研究。E-mail: gmgjwjq@126.com

Optimization Tests on Main Steam Pressure for 600-MW Air-Cooling Heat Supply Units

WANG Jin-quan1, LI Jun2, LU Hong-kai2   

  1. 1. Shanxi Gemeng Safety Production Consultation Co. Ltd., Taiyuan 030000, China;
    2. Shanxi Zhaoguang Power Generation Co. Ltd., Huozhou 031400, China
  • Received:2013-12-26 Online:2014-04-30 Published:2015-12-22

摘要: 通过对600 MW空冷供热机组不同供热抽汽量、排汽压力的试验,研究了供热抽汽量及排汽压力变化对机组主蒸汽压力的影响规律,并定量计算了不同试验工况下汽轮机热耗率的变化。提出了空冷机组全年高效定滑压运行模型,修正了机组原有的滑压运行控制逻辑。运行结果表明:按修正后定滑压运行曲线运行在450 MW、供热抽汽量300 t/h时,可降低供电煤耗1.1 g/(kW·h)。

关键词: 空冷机组, 供热机组, 滑压运行, 供热抽汽, 排汽压力, 优化运行

Abstract: The variation of steam extraction volume and exhaust pressure with main steam pressure is studied through the tests on the 600-MW air-cooling heat supply units and the quantitative measurement on the changes of the heat consumption rate under the conditions of different extraction volumes and exhaust pressures is conducted. The year-around efficient fixed and sliding pressure operation model is put forward and the original unit sliding pressure operation logic is modified. The operation results show that a decrease of net coal consumption of 1.1 g/(kW·h) can be obtained when the sliding pressure curve is at the loads of 450 MW and the heating steam extraction is 300 t/h.

Key words: air-cooling unit, heat supply unit, sliding pressure operation, heating extraction, exhaust pressure, optimal operation

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