乏汽供热用大型蒸汽射汽器性能试验与研究  

Test and Research on the Performance of Large Steam Ejector for Exhaust Steam Heating

作　　者：张攀[1] 吕俊复[1] ZHANG Pan;L Junfu(Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学热科学与动力工程教育部重点实验室,北京100084

出　　处：《动力工程学报》2024年第8期1272-1277,共6页Journal of Chinese Society of Power Engineering

摘　　要：对乏汽供热用大型射汽器的性能进行了全面分析和研究。结合射汽器的固有特性,在300 MW等级机组的乏汽供热系统中对射汽器变工况性能进行了试验研究,得到了不同机组背压、动力蒸汽压力和出口压力下射汽器的性能曲线。建立了一种射汽器全工况特性的性能参数求解方法。结果表明:性能参数求解结果与试验数据吻合度高。Comprehensive analysis and research were carried out on the performance of large-scale steam ejectors for exhaust steam heat-supply.Based on the inherent characteristics of the steam injector,the performance of the ejector in the exhaust steam heat supply system of a 300 MW class unit under off-design conditions was experimentally studied.The performance curves of the steam ejector under different turbine back pressures,power steam pressures and outlet pressures were obtained.A solution method for full-operation-condition performance parameters of the steam ejector was established.Results show that the performance parameters are in good agreement with the experimental data.

关 键 词：高背压 乏汽 射汽器 数值求解 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]