摘要
双转子涡轮试验具有极高的试验风险,而大型全尺寸1+1/2对转涡轮试验在国内更是首次开展。为保证试验安全实施,在查阅国内相关涡轮试验文献和对设备现状评估的基础上,对对转涡轮关键试验技术展开了研究。研发了集成控制、数据采集和安全控制功能的多任务并行测控系统,实现了对两个转子系统的联合控制;建立了"高压优先调节、低压独立控制、高低匹配联调"的对转涡轮匹配联调方法,制定了切实可行的试验安全保障方案;为详细了解高低压级间流场,布置了级间测量系统。试验证明:多任务系统运行良好,低压水力测功器稳速精度提高4倍,试验件轴向力控制方法有效,试验时间缩短50%以上,为我国高性能双转子涡轮设计技术的发展奠定了基础。
The dual-rotor turbine experiment has considerable failure risks and the first domestic full scale1＋1/2 contra-rotating turbine experiment has been successfully carried out in the AECC Sichuan Gas Tur-bine Establishment. To provide a solid foundation for experiment safety, several key technologies were in-vestigated based on relative literature and test facility status. The combined measurement and control multi-task system was developed to fulfill the synchronously control of the two rotor systems. Upgrades were takenout for the old fashioned hydraulic dynamometer regulation precision improvement and the matching regula-tion method of ＂regulate high pressure stage preferentially and low pressure stage catch up independentlywith the high and low pressure stage matching target＂ was set up. Besides, a practical safety assurance planwas proposed and the inter-stage measuring probes were applied for a better understanding of the in-ter-stage flow field characteristics. With those efforts, the multitask control system operated smoothly dur-ing the first domestic full scale dual-rotor turbine experiment and the rotating speed regulation precisionwere improved 4 times with a time saving of 50%. Those key technologies provide fundamental supports forthe high performance dual-rotor turbine design and experiment for our country.
出处
《燃气涡轮试验与研究》
北大核心
2017年第1期1-6,共6页
Gas Turbine Experiment and Research
关键词
航空发动机
双转子
全尺寸
1+1/2对转涡轮
匹配联调
试验
aero-engine
dual-rotor
full scale
1＋1/2 contra-rotating turbine
matching regulation method
experiement
