熔盐槽式太阳能光热发电技术特点及发展方向
刘义达，李官鹏，祁金胜
（国家电力投资集团山东电力工程咨询院有限公司，山东 济南 250013）
摘要： 储热型光热电站能够与风电、光伏等波动的可再生能源耦合，产生稳定的电力。通过与熔盐电加热器结合，
熔盐槽式光热电站可双向接入电网，是电网友好型的灵活性电源。为探索采用可再生能源消纳可再生能源的路径，总结
分析了熔盐槽式太阳能光热技术路线的国内外示范回路进展、存在问题、发展方向和典型设计。大开口集热器和高温集
热管是熔盐槽式光热发电技术路线的关键设备。通过熔盐槽式与导热油槽式光热发电的对比发现，熔盐槽式光热发电的
熔盐用量少、储能系统投资低，更适合作为储热型光热电站，且更适合应用于生态脆弱地区。熔盐槽式电站的典型设计
可供今后建设储热型光热电站借鉴。
关键词： 储热型光热电站；熔盐槽式；示范回路；槽式集热器；防凝
中图分类号： TM615      文献标志码： A      文章编号： 2095-0802-(2023)03-0001-05
Characteristics and Development Direction of Molten Salt Trough CSP Technology
LIU Yida, LI Guanpeng, QI Jinsheng
(Shandong Electric Power Engineering Consulting Institute Co., Ltd., State Power Investment Corporation, Jinan 250013,
Shandong, China)
Abstract: Concentrating solar power (CSP) with thermal storage (TS) could produce stable electric power coupled with fluctuating
renewable energy such as wind power and photovoltaic power. Combined with electric heater for molten salt, molten salt trough
CSP with TS could connect to the power grid in two directions, which is a grid-friendly flexible power supply. In order to explore
the path of adopting renewable energy to accommodate renewable energy, the progress of domestic and foreign demonstration loop,
existing problems, development direction and typical design of molten salt trough technical route were summarized and analyzed.
Large aperture parabolic trough and high temperature trough receiver tube are key equipment for the molten salt trough technology
route. Comparing with heat transfer oil trough, the molten salt trough is more suitable to work as CSP with TS by reason of less
consumption of the molten salt and low investment of the energy storage system. Besides, the molten salt trough is more suitable
for application in ecologically fragile areas. The typical design of the molten salt trough power station can be used for reference in
the future construction of CSP with TS.

Key words: CSP with TS; molten salt trough; demonstration loop; trough collector; freeze protection