华电技术 ›› 2017, Vol. 39 ›› Issue (12): 37-39.

• 技术交流 • 上一篇    下一篇

600MW火电机组对标管理及优化运行

  

  1. 华电国际电力股份有限公司深圳公司,深圳〓518118
  • 出版日期:2017-12-25 发布日期:2018-01-10

Benchmarking and optimal operation of 600MW thermal power plant

  1. Huadian Power International Corporation Company  Limited  Shenzhen Branch, Shenzhen 518118, China
  • Online:2017-12-25 Published:2018-01-10

摘要:

国内600MW级A,B两火力发电厂,机组情况相似,负荷率相近,但是运行经济性相差较大,B发电厂在年发电量只占A发电厂97.6%的情况下,创造了相当于A发电厂143.9% 的年净利润。通过采用对标管理的方法,对A,B两厂主要经济指标进行归一化处理,折算成对发电煤耗的影响来比较。最终发现综合厂用电率高,凝汽器端差大,排烟温度高是造成A发电厂运行经济性差的3个主要原因,共影响供电煤耗5.345g/(kW·h),占比84.3%。结合设备实际,提出技改措施。

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Abstract:

In this paper, the comparative study was carried out between two 600MW thermal power plant (A and B) with similar power units and load factor but significantly different operation economics. The annual generation capacity of plant B is 97.6% of plant A, but it has created 143.9% of the annual profit in comparison to plant A. Major economic indicators of plant A and B were normalized using benchmarking, and their influences on the coal assumption are calculated for comparative study. The research revealed that as integrated power plant, plant A has a higher power consumption rate,bigger condenser difference,and higher exhaust temperature, which results in its poor performance in its operation economics. 5.343g/(kW·h) of coal consumption of power supply was affected by the three factors above, which occupies 84.3% of the total. According to the actual unit setup, technological modification measures are suggested.

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