摘要
从?的角度出发,对带背压式给泵汽机的梯级循环机组的性能进行全面分析。首先,对具有相同回热级数及压力参数的常规超超临界机组与梯级循环机组进行建模;其次,将模型的热力参数仿真结果与系统设计值对比以检验模型的精度;第三,从?的角度对比分析了两种机组的部件效率差异;基于上述分析,得出EC系统拥有更高的性能得益于回热系统?损失的大大降低。
From the point of view,the performance of the cascade cycle unit with pump back to the pump is analyzed comprehensively.Firstly,the conventional super-supercritical unit and the cascade cycle unit with the same regenerative series and pressure parameters are modeled.Secondly,the simulation results of the thermal parameters of the model are compared with the system design values to test the accuracy of the model.Thirdly,Based on the above analysis,it is concluded that the EC system has a higher performance thanks to the greatly reduced loss of the regenerative system.
作者
邬文泰
Wu Wentai(Fujian Yongfu Electric Power Design Co., Ltd., Fuzhou Fujian 350100,China)
出处
《环境与发展》
2017年第4期180-181,183,共3页
Environment & Development
关键词
超超临界
EC系统
背压式给泵汽轮机
Ultra-supercritical
EC system
Back pressure type pump turbine