华电技术 ›› 2016, Vol. 38 ›› Issue (11): 45-47.

• 技术交流 • 上一篇    下一篇

超临界机组DCS改造对机组经济运行的影响

  

  1. 国电泰州发电有限公司,江苏泰州〓225327
  • 出版日期:2016-11-25 发布日期:2017-01-18

Influences of distributed control system transformation on the economic operation of supercritical unit

  1. Guodian Taizhou Power Generation Company Limited, Taizhou 225327, China
  • Online:2016-11-25 Published:2017-01-18

摘要:

摘要:为提高机组运行的安全性和经济性,某电厂超临界机组锅炉分散控制系统(DCS)进行了优化改造。通过对比、分析DCS改造前后1年内的运行数据及入炉煤质、飞灰、炉渣化验数据,运用耗差分析法计算、分析主要运行参数变化对机组发电煤耗的影响,在不同入炉煤质、不同运行负荷下综合评估锅炉DCS改造对机组经济运行的影响,为评估控制系统改造对机组经济运行的定量影响提供了一种经济、可行的方法。

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Abstract:

Abstract:In order to improve the operation safety and economy of unit, a distributed control system (DCS) optimal transformation of supercritical unit boiler of a certain power plant is conducted. Through comparing and analyzing the one year operation data and the test data of preboiler coal quality, fly ash and slag before and after the DCS transformation, and analyzing the influences of changing main operation parameters on coal consumption of power unit using heat deviation analysis, this paper comprehensively evaluated the influences of boiler DCS transformation on the economic operation of unit under different preboiler coal quality conditions and operation loads. And it provided an economic and feasible method to evaluating the quantitative influences of DSC transformation on the economic operation of unit.

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