大型汽轮机宽负荷运行时进汽部分性能对比分析  

Analysis on Aerodynamic Performances of Inlet Structure at a Wide Load Range Condition for Large Steam Turbine

作　　者：张怀宇 王晨瑜 谢雷 李宇峰[3] 刘云锋[3] 

机构地区：[1]国家电投集团科学技术研究院有限公司,北京102209 [2]国家电力投资集团公司,北京102209 [3]哈尔滨汽轮机厂有限责任公司,哈尔滨150046

出　　处：《汽轮机技术》2016年第6期459-460,共2页Turbine Technology

基　　金："十二五"国家科技支撑计划项目"高效宽负荷超超临界火电机组开发与应用"(项目编号:2015BAA03B00)资助

摘　　要：针对1000MW汽轮机两种进汽部分在100%和75%负荷运行时的气动性能对比分析。与传统的喷嘴调节方式相比,全周进汽+补汽调节在额定工况下效率提高了12.9%,75%工况下效率提高了15.3%,且75%负荷时全周进汽结构的效率仅降低0.4%,远小于部分进汽结构的2.8%。分析结果表明,全周进汽+补汽调节更适合宽负荷运行。Aerodynamicperformances of inlet structure have been analyzed between 100% condition and 75% condition for1000MW steam turbine. Compared with traditional inlet structure, efficiency has been improved by 12. 9% at designcondition, 15.3% at 75% load condition. And efficiency of 75% load condition is only less than design condition by0.4%. Otherwise efficiency of partial steam inlet structure is less than design condition by 2.8%. Numerical simulationresults show that full admission with supplement steam regulating are suit for a larger load range.

关 键 词：大型汽轮机 宽负荷运行 进汽部分 性能对比分析 

分 类 号：TK123[动力工程及工程热物理—工程热物理]