华电技术 ›› 2019, Vol. 41 ›› Issue (4): 6-9.

• 研究与开发 • 上一篇    下一篇

660MW超临界机组滑压运行优化试验与分析

  

  1. 1.江西赣能股份有限公司丰城二期发电厂,江西丰城〓331100;2.国电江西丰城电厂,江西丰城〓331100
  • 出版日期:2019-04-25 发布日期:2019-05-10

Analysis and optimization test for 660MW supercritical unit under slidingpressure operation

  1. 1.Fengcheng Phrase Ⅱ Power Plant of Jiangxi Ganneng Company Limited, Fengcheng 331100, China; 2.Guodian Jiangxi Fengcheng Power Plant, Fengcheng 331100, China
  • Online:2019-04-25 Published:2019-05-10

摘要:

随着社会经济水平和人民生活水平的不断提高,对电量的需求量也逐渐上升,电网总负荷随之增加,电网的峰谷负荷差异越来越大,对机组调峰能力的要求越来越高。目前,汽轮机低负荷时的有效运行方式是滑压运行,使机组处于相对经济的工况,降低了机组的供电煤耗。研究汽轮机的低负荷运行方式,以降低汽轮机的能耗,具有重要意义。通过滑压试验,确定滑压的起始负荷点和定压运行的初始压力,制作负荷与机前主蒸汽压力的数值对应关系表,指导机组经济运行。

关键词:

Abstract:

With the continuous improvement of economic level and living standard, the demand for electricity is gradually rising, and the total load of power grid is increasing, which increases the disparity between peak loads and valley loads. The demand for peak load regulating is more urgent. At present, the effective operation mode of steam turbine under low load is slidingpressure operation, which is more economic and more coalsaving. It is of great significance to study the lowload operation mode of steam turbines in order to reduce the energy consumption. Through slidingpressure test, the initial load point of slidingpressure operation and the initial pressure of constantpressure operation are determined. The relationship between the load and the main steam pressure in front of the engine is given to guide the economic operation of the unit.

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