摘要
蒸汽压缩机蜗壳的设计会显著影响压缩机性能和稳定工作范围。根据某型蒸汽压缩机参数,采用不等边基元法进行蜗壳优化设计,探究了不同蜗舌角度θ对整机性能的影响及其内部流动机理,进一步以蜗壳进口半径为变量对蜗壳型线进行优化。结果表明:选择合适的蜗舌角度θ有利于整机性能的提升,通过优化蜗舌角度θ整机效率提升了0.7%,静压恢复系数提升了7.5%;优化蜗壳型线改变蜗壳截面积可以增强对气流的控制,减小流动损失,从而实现整机性能和流量范围的有效提升,其中整机效率提高了1.5%,流量范围有效拓宽了11.5%,为MVR低温升蒸汽压缩机高性能设计提供了参考。
The design of the volute in vapour compressor significantly affects the compressor's performance and stable operating range.Based on the parameters of a specific type of vapour compressor,the scalene element method was used for volute optimization design.The study explored the impact of different tongue angles(θ) on the overall machine performance and internal flow mechanisms.Furthermore,the volute profile was optimized by varying the volute inlet radius.The results indicate that selecting an appropriate volute tongue angle(θ) is beneficial for improving overall machine performance.By optimizing the volute tongue angle(θ),the overall machine efficiency increased by 0.7%,and the static pressure recovery coefficient improved by 7.5%.Optimizing the volute profile by altering the volute cross-sectional area can enhance airflow control and reduce flow losses,thereby effectively improving overall machine performance and flow rate range.The overall machine efficiency increased by 1.5%,and the flow rate range was effectively expanded by 11.5%,providing a reference for the high-performance design of MVR lowtemperature-rise vapour compressors.
作者
王雪梅
孙冬婷
文俊
刘胜利
霍文浩
Xue-mei Wang;Dong-ting Sun;Jun Wen;Sheng-li Liu;Wen-hao Huo(ChongQing JiangJin Shipbuilding Industry Co.,Ltd.;National Engineering Research Center of Special Equipment and Power System for Ship and Marine Engineering;Key Laboratory of Marine Turbocharge Research,Chongqing Industry and Information Technology)
出处
《风机技术》
2025年第1期47-52,共6页
Chinese Journal of Turbomachinery
关键词
蜗壳
蜗壳优化
蜗舌
蒸汽压缩机
性能
数值仿真
Volute
Volute Optimization
Volute Tongue
Vapour Compressor
Performance
Numerical Simulation
