发电与制冷相结合的LNG冷能梯级利用技术研究  

Technology study on the cascade utilization of LNG cold energy with combination of power generation and air conditioning refrigeration system

作　　者：贺雷 张磊[2] 高为[2] 余黎明[2] 张信荣[3] 刘勇[3] 王少茹[3] 

机构地区：[1]中海油工业气体(宁波)有限公司,宁波315800 [2]中海油能源发展股份有限公司北京冷能利用研究所,北京100015 [3]北京大学工学院,北京100083

出　　处：《低温与超导》2015年第5期22-27,共6页Cryogenics and Superconductivity

摘　　要：随着我国对环境保护的重视,LNG作为一种清洁、高效的能源越来越受到青睐。发电与制冷相结合的LNG冷能梯级利用技术由于其节能、环保、技术成熟而且实现冷能的高效利用成为重要研究课题。以某LNG接收站为背景,提出了LNG冷能朗肯循环发电与空调制冷相结合的工艺,并对将其应用于实际工程之中。该工艺将LNG冷能包括分为高品位发电工艺和低品位空调制冷工艺,通过对系统设备的选型、总投资及经济效益分析得出结论,在LNG冷能发电系统中增加空调制冷系统可大幅提高机组的经济效益,具有较高的推广价值。With China＇s emphasis on environmental protection, LNG, a clean and efficient energy, has becoming more and more favored. LNG cold energy cascade utilization which combines power generation technology with air conditioning refrigeration system becomes important research subjects, due to its energy saving, environmental protection, mature technology and efficient utilization. Based on a LNG receiving station, an using LNG cold energy process with combination of LNG cold energy Rankine cycle power generation and air - conditioning refrigeration system was brought up and would put into used in real project. The process divide LNG cold energy into high grade power generation system and low grade air conditioning system. From choosing equipment, investment estimation and economic benefit analysis, the conclusion can be drawn that adding air - conditioning refrigeration system in LNG cold energy power generation system greatly improve the economic benefits of the total system,and it is worthy to be widely spread.

关 键 词：LNG冷能 梯级利用 冷能发电 空调制冷 

分 类 号：TS68[轻工技术与工程]