LNG冷能发电系统大功率有机工质透平研发  

Research on Large-Scale ORCTurbine for LNG Cold Energy Power Generation

作　　者：杜长春 杨佐卫[2] DU Chang-chun;YANG Zuo-wei(CNNP(Tibet)Energy Development Co.,Ltd.,Lasa Xizang 851500,China;Dongfang Steam Turbine Co.,Ltd.,Deyang Sichuan 618000,China)

机构地区：[1]中核(西藏)能源发展有限公司,西藏拉萨851500 [2]东方汽轮机有限公司,四川德阳618000

出　　处：《机电产品开发与创新》2025年第2期1-3,10,共4页Development & Innovation of Machinery & Electrical Products

基　　金：四川省科技计划项目(重点研发项目,2023YFG0092)。

摘　　要：有机朗肯循环作为LNG冷能发电的最主要形式,大功率有机工质透平是其发电方式主要难点和关键核心技术,也是少数国外厂家垄断LNG冷能发电装备的主要技术手段。本文针对LNG冷能发电系统使用的大功率有机工质透平机,提出了流体机械选型思路和快速选型计算方法,归纳其核心设计思路,并据此提出有机工质透平完整解决方案。通过设计实例验证解决方案并通过径-轴流方案对比选型、变工况性能评估,说明其技术特点,为大功率LNG冷能发电装备“中国方案”提供有效设计支撑。Organic Rankine cycle is the main form of LNG cold energy power generation.Large-scale ORC turbine is the main difficulty and key core technology,and also the main technical barrier for a few foreign manufacturers to monopolize LNG cold energy power generation equipment.In this paper,according to large-scale ORC turbine for LNG cold energy power generation,the selection idea and fast selection calculation method of fluid machinery are proposed,and the core design requirements are summarized,based on which a complete solution for ORC turbines is proposed.The solution is verified through design examples,and its technical characteristics are illustrated through the comparison and selection of radial-axial flow schemes and the performance evaluation of off design conditions,providing effective support for the"China scheme"of large-scale LNG cold energy power generation equipment.

关 键 词：冷能发电 可变导叶 多级悬臂 工质回收 

分 类 号：TH122[机械工程—机械设计及理论]