国内光热发电现状及熔盐储热材料的发展

Current situation of domestic solar thermal power generation and development of molten salt heat storage materials

太阳能是一种清洁的可再生能源,太阳能光热发电是利用太阳能加热介质,并利用发电设备进行发电.太阳能光热发电技术分为:槽式、塔式、碟式和线性菲涅尔式.随着国内太阳能光热发电政策、规划的陆续出台,以及光热示范项目的发展,我国太阳能光热发电产业开始进入规模化商业应用阶段,同时在国际市场的知名度及竞争力不断提高.熔盐储热材料作为热载体,在生产、生活的应用领域越来越广泛,随着太阳能光热发电的蓬勃发展,熔盐作为储能介质被广泛应用于该行业.硝酸盐熔盐中的硝酸钠:硝酸钾=6:4的二元熔盐目前广泛用于太阳能光热发电行业,因此硝酸钠、硝酸钾的生产将会对光热发电行业的发展有着广泛而深远的影响.

Solar energy is a clean and renewable energy source.Solar thermal power generation is a method which heats medium by solar energy and generates electricity by power generation equipment.There are four types of solar thermal power technologies,trough,tower,disc and linear Fresnel.With successive introduction of domestic solar thermal power generation policy and planning,together with the development of solar thermal demonstration projects,solar thermal power generation industry in our country began to enter the stage of large-scale commercial application.Popularity and competitiveness in international market continues to improve at the same time.As a heat carrier,molten salt heat storage materials are more and more widely used in production and daily lives.With the rapid development of solar thermal power generation,molten salt is widely used in this industry as energy storage medium.Binary molten nitrate salt in which the ratio of sodium nitrate to potassium nitrate is 6:4,is now widely used in solar thermal power generation industry.So production of sodium nitrate and potassium nitrate will have a broad and profound impact on the development of thermal power industry.