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The mainstream development direction of thermal power generation by molten salt heating technology
Source:This web site  Hit:4816 Time:2014-12-5

众所周知,太阳能发电的最大劣势在于阳光辐照的间歇性,而太阳落山的时候往往是人们的用电高峰期。因此,全球的太阳能公司都想设计一个可以存贮太阳热量的系统,使电站能够在阴天夜晚正常运行。各国技术人员尝试了各种各样的设计,但最终只有西班牙的Gemasolar电站成功了,该电站也因此获得了国际上一系列的奖项。

As everyone knows, the biggest disadvantage lies in the intermittent solar power sunlight irradiation, while the sun is often people's peak electricity. Therefore, the global solar energy companies want to design a storage of solar heat system, so that the power plant can run normally in the cloudy night. Technical personnel in various countries try a variety of designs, but in the end only the Spanish Gemasolar station is successful, the plant has thus received a series of awards in international.

Gemasolar光热电站位于西班牙塞维利亚市附近,由西班牙Torresol能源公司投资建设,它自带15小时熔盐储热系统,满负荷状态下能够维持电站稳定运行18个小时以上而不要任何额外的能量,而且一年好几个月它都能够每天连续运行24小时。该电站装机规模仅20MW,能够满足25000个家庭日常用电,每年可以减排二氧化碳30000吨。

Gemasolar thermal power plant is located near the Spanish city of Seville, investment and construction by Spain's Torresol energy company, it comes with 15 hours of molten salt heat storage system, which can maintain the plant stable operation for more than 18 hours without any additional energy full load condition, and a year for several months it can run continuously for 24 hours a day. The power station installed capacity is only 20MW, which can meet the 25000 family daily use of electricity, each year 30000 tons of carbon dioxide emissions.

Gemasolar电站使用了2650套定日镜,共占地185公顷。定日镜群将太阳能集中到塔式集热器,集热器集中的热量将熔盐加热到发电所需要的温度。满负荷运转情况下多余的热量通过熔盐存在熔盐罐中,供阴天或者夜晚使用。

Gemasolar power plant using 2650 sets of heliostat, covers an area of 185 hectares. Heliostat group will be concentrated to the tower solar energy collector, collector concentration in the heat of the molten salt heating to power the required temperature. Full load excess calories running condition by molten salt exists in molten salts, for cloudy days or night use.

凭借Gemasolar电站的成功运行,投资方西班牙Torresol能源公司被授予DESERTEC2014大奖——“Pioneering Design”奖项。DESERTEC是一个致力于通过在沙漠地区建设光热电站来为欧洲提供电力的组织,他们已经筛选出了4个电站,这些电站的共同点是都能够把太阳能储存后用于夜晚发电。他们将Gemasolar电站形容为“未来电站的先驱者”。

With the successful operation of Gemasolar power plant, the investment side of the Spanish energy company Torresol was awarded the -- "Pioneering Design" award at the DESERTEC2014 awards. DESERTEC is a dedicated by desert area in building solar thermal power stations to provide electricity for the organization in Europe, they have identified 4 power plants, common to these power plants are able to store solar energy for power generation after the night. They will be described as "a pioneer of the future Gemasolar power station".

截止目前,Gemasolar电站已经正常运行3年之久了,这说明该电站采用的熔盐塔式太阳能热发电技术是成功的。Torresol能源公司和DESERTEC机构都认为全球将会建设更多更大规模类似Gemasolar的电站。

To date, Gemasolar power plant has been running for 3 years, and this shows that the molten salt solar thermal power tower technology of this plant is used in successful. Torresol energy and DESERTEC agencies think global will be more large-scale construction similar to the Gemasolar power station.

据统计,目前全球共建成105座太阳能光热电站。其中加利福尼亚的SEGS槽式光热电站已经连续运行了30年,SEGS电站之后美国又在西部沙漠地区建设了一大批光热电站。作为全球光热发电技术的领先者,西班牙公司采用熔盐储热技术在中东沙漠地区也建立了大批不同发电形式的光热电站,而Gemasolar电站被认为是目前建设的最成功的一个。

According to statistics, at present, the world has built 105 solar thermal power stations. The SEGS groove type solar thermal power stations in California have operated continuously for 30 years, SEGS power after the United States and in the western desert area construction of a large number of power stations. As a global leader in solar thermal power generation technology, Spanish Company in the Middle East desert area has also built a large number of different forms of power generation thermal power station by the molten salt heat storage technology, and Gemasolar power station is now considered to be the most successful one construction.

目前,全球各大光热发电巨头都在对熔盐塔式技术和项目进行研究和部署。美国SolarReserve在建的全球装机最大的110MW的塔式熔盐光热电站新月沙丘电站正在进行最后阶段的调试,即将并网发电。光热发电巨头Abengoa也正在智利筹备建设110MW的Cerro Dominador熔盐塔式光热电站,该项目也将成为Abengoa应用熔盐塔式技术的首个商业化电站。除此之外,Masdar和Sener这两个投建了Gemasolar项目的公司对熔盐塔式技术的应用也在进行更多的部署。在中国,首航光热已经在筹备开工建设首个10MW的熔盐塔式电站,中控太阳能在建设完毕10MW的水工质塔式电站后,正加快塔式熔盐技术的应用步伐。

At present, the global various light heat power generation giants in the molten salt tower technology and project research and deployment. Power station power stations barchan tower molten salt of American SolarReserve in the construction of the installation in the world's largest 110MW are debugging the final stage, the upcoming grid generation. Solar thermal power generation giant Abengoa is also Cerro Dominador molten salt tower solar thermal power stations Chile preparations for the construction of 110MW, the project will also become the first commercial power plant technology application of Abengoa molten salt tower. In addition, Masdar and Sener of the two voted to build Gemasolar project company application of molten salt tower technology are also more deployment. In China, the molten salt tower power plant has been in preparation for the inaugural photothermal started construction of the first 10MW, in the control of solar energy in the water medium tower power plant construction completed 10MW, is accelerating the pace of tower molten salt technology application.

塔式熔盐技术的优点明显,但技术难度较槽式和水工质塔式技术都大。但国内外业内目前普遍看好该技术的市场前景,这已成为光热发电未来发展的主流方向之一。

The advantages of tower molten salt technology is obvious, but the technical difficulty is trough and the water medium large tower technology. But the industry at home and abroad at present generally optimistic about the technology market prospects, it has become one of the main direction of the future development of thermal power generation.