汽轮机主汽压力扰动对机组经济性的影响
The Influence of Main Steam-Turbine Pressure Disturbance on Turbine’s Economy

作者: 米玉鸿 :嘉峪关宏晟电热有限责任公司,嘉峪关;

关键词: 汽轮机主汽压力扰动经济性Steam-Turbine Main Steam Pressure Disturbance Economy

摘要:
准确计算主汽压力扰动对经济性的影响,对机组安全运行、经济运行具有重要意义。本文以统一物理模型和热力系统状态方程为基础,推导出了主汽压力扰动对机组经济性的影响计算公式。并以600 MW机组为研究对象,分析额定工况和不同工况下主汽压力变化对煤耗的影响。并与厂家所给出的热力试验修正曲线的计算分析结果进行对比,相对误差不超过3%,表明利用该统一物理模型简单、计算准确等优点。

Abstract:
The accurate calculation of the influence of the main steam pressure disturbance on the economy is important to the safe and economical operation of the unit. In our study, we deduced the formula of the impact of the main steam pressure disturbance on the unit economy based on the unified physical model and thermal system state equation. We also studied the unit of 600 MV and analyzed the impact of the main steam pressure changes on coal consumption under rated conditions and different conditions. Compared with the analysis results of the thermal test correction curves given by manufacturers, relative error does not exceed 3%, which demonstrates that this unified physical model has the ad- vantages of being simple, accurate calculation, etc.

文章引用: 米玉鸿 (2013) 汽轮机主汽压力扰动对机组经济性的影响。 电力与能源进展, 1, 131-135. doi: 10.12677/AEPE.2013.14023

参考文献

[1] 闫顺林, 胡三高, 徐鸿, 李永华 (2008) 火电机组热经济性分析的统一物理模型和数学模型. 中国电机工程学报, 23, 37- 41.

[2] 王艳军, 吴彦坤, 张春发, 黄海东 (2007) 主蒸汽参数变化对机组功率影响的定量研究. 热力透平, 9, 165.

[3] 张春发, 张素香, 崔映红 等 (2001) 现行电力系统热经济性状态方程. 工程热物理学报, 11, 665-667.

[4] 李娟, 张春发 (2007) 电厂热力系统节能分析的线性化处理及改进. 华北电力大学, 北京.

[5] 李玉辉 (2009) 大机组运行方式优化. 华北电力大学, 北京.

分享
Top