深度调峰工况下汽轮机配汽方式优化研究Study on Steam Distribution Optimization of Steam Turbine under Deep Peak Load Regulation
付涛,范诚豪
FU Tao,FAN Chenghao
摘要(Abstract)：
选择某超超临界喷嘴配汽汽轮机作为研究对象,分析了传统配汽方式优化和汽轮机滑压曲线存在的局限性,通过建立相应的调节级仿真模型,计算了不同流量系数下不同阀门组合的热耗特性,给出了不同流量系数下的最佳阀门组合方式、压力和流量特性曲线。按照该汽轮机年度调峰运行数据分析,采用优化后的配汽方式运行,可以使2台机组平均降低汽轮机热耗约10 k J/kWh,预测当汽轮机参与深度调峰后,可以实现更大幅度的节能收益。
The paper investigates an ultra-supercritical nozzle governing steam turbine and analyzes the limitations of traditional governing mode optimization and sliding pressure curve. By establishing a governing stage simulation model, the paper calculates heat consumption characteristics of different valve combinations under different flow coefficient and suggests optimum valve combination, press and flow characteristic curve. According to the annual peak load regulation data, the optimized steam distribution mode can reduce heat consumption of two units by 10 kJ/kWh on average, and it is predicted that the greatest energy-saving benefit of the steam turbines can be achieved with their participation in deep peak load regulation.
关键词(KeyWords)：
配汽方式;深度调峰;优化
steam distribution mode;deep peak load regulation;optimization
基金项目(Foundation):
作者(Author):
付涛,范诚豪
FU Tao,FAN Chenghao
DOI: 10.19585/j.zjdl.201907017
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