超高温热泵辅助的熔盐储热系统及其经济性分析  

Very-high-temperature heat pump assisted molten salt thermal storage system and its economic analysis

作　　者：徐英杰 干天立 贾留露 余为 韩晓红[3] Xu Yingjie;Gan Tianli;Jia Liulu;Yu Wei;Han Xiaohong(School of Mechanical Engineering,Zhejiang University of Technology;Geling New Energy Technology(Hangzhou)Co.,Ltd.;Institute of Refrigeration and Cryogenics,Zhejiang University)

机构地区：[1]浙江工业大学机械工程学院 [2]格瓴新能源科技(杭州)有限公司 [3]浙江大学制冷及低温研究所

出　　处：《制冷与空调》2025年第2期99-106,共8页Refrigeration and Air-Conditioning

基　　金：国家自然科学基金(5207618);杭州市自然科学基金(2024SZRYBE060001)。

摘　　要：熔盐储热是一种实现电网调峰的新兴能源技术,其具有安全环保、运行可靠的优点,但经济性差成为进一步推广的瓶颈。本文依托杭州某能源企业供热项目(100 t/h),提出超高温热泵辅助的熔盐储热系统,以降低运行成本。经济性分析表明,在现有峰谷电价体系和售热价格下,与传统熔盐储热系统相比,超高温热泵辅助的熔盐储热系统经济性显著提高,年毛利润从1 068万元增至4 230万元,投资回收期缩短75%。另外,本文分析不同谷电电价条件下的年度电费、运行成本、毛利润以及投资回收期之间的关系,为相关领域的进一步研究提供理论依据和实践指导。Molten salt thermal storage is an emerging energy technology that enables peak shaving of the power grid and it has the advantages of safety, environmental protection, and reliable operation, but its poor economy has become a bottleneck for further promo-tion. A molten salt heat storage system assisted by a very-high-temperature heat pump is proposed based on a 100 t/h heating project of an energy enterprise in Hangzhou to reduce operating costs. Economic analysis shows that under the existing peak valley electricity price system and heat selling price, compared with the traditional molten salt thermal storage system, the very-high-temperature heat pump assisted molten salt thermal storage system can significantly improve its economy, with annual gross profit increasing from 10.68 million yuan to 42.30 million yuan and investment payback period shortened by 75%. In addition, the relationship between annual electricity bills, operating costs, gross profit, and investment payback period under different valley electricity price conditions is analyzed, providing theoretical basis and practical guidance for further research in related fields.

关 键 词：超高温热泵 熔盐储能 储热 经济效益 投资回收期 

分 类 号：TK11[动力工程及工程热物理—热能工程]