熔盐槽式太阳能光热发电技术特点及发展方向  

Characteristics and Development Direction of Molten Salt Trough CSP Technology

作　　者：刘义达[1] 李官鹏[1] 祁金胜[1] LIU Yida;LI Guanpeng;QI Jinsheng(Shandong Electric Power Engineering Consulting Institute Co.,Ltd.,State Power Investment Corporation,Jinan 250013,Shandong,China)

机构地区：[1]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

出　　处：《能源与节能》2023年第3期1-5,12,共6页Energy and Energy Conservation

基　　金：国家电力投资集团山东电力工程咨询院有限公司科技项目(37-K2019-025)。

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。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.

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 

分 类 号：TM615[电气工程—电力系统及自动化]