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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.
Gemasolar¹âÈȵçվλÓÚÎ÷°àÑÀÈûάÀûÑÇÊÐËÄÖÜ£¬ÓÉÎ÷°àÑÀTorresolÄÜÔ´¹«Ë¾Í¶×ʽ¨É裬Ëü×Ô´ø15СʱÈÛÑδ¢ÈÈϵͳ£¬Âú¸ººÉ״̬ÏÂÄܹ»Î¬³ÖµçÕ¾Îȶ¨ÔËÐÐ18¸öСʱÒÔÉ϶ø²»ÒªÈκÎÌØÁíÍâÄÜÁ¿£¬²¢ÇÒÒ»ÄêºÃ¼¸¸öÔÂËü¶¼Äܹ»Ã¿ÌìÁ¬ÐøÔËÐÐ24Сʱ¡£¸ÃµçÕ¾×°»ú¹æÄ£½ö20MW£¬Äܹ»Âú×ã25000¸ö¼ÒÍ¥ÈÕ³£Óõ磬ÿÄê¿ÉÒÔ¼õÅŶþÑõ»¯Ì¼30000¶Ö¡£
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.
GemasolarµçվʹÓÃÁË2650Ì׶¨ÈÕ¾µ£¬¹²Õ¼µØ185¹«Çê¡£¶¨ÈÕ¾µÈº½«Ì«ÑôÄܼ¯Öе½Ëþʽ¼¯ÈÈÆ÷£¬¼¯ÈÈÆ÷¼¯ÖеÄÈÈÁ¿½«ÈÛÑμÓÈȵ½·¢µçËùÐèÒªµÄζȡ£Âú¸ººÉÔËתÇé¿ö϶àÓàµÄÈÈÁ¿Í¨¹ýÈÛÑα£´æÈÛÑιÞÖУ¬¹©ÒõÌì»òÕßÒ¹ÍíʹÓá£
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.
ƾ½èGemasolarµçÕ¾µÄÀÖ³ÉÔËÐУ¬Í¶×Ê·½Î÷°àÑÀTorresolÄÜÔ´¹«Ë¾±»ÊÚÓèDESERTEC2014´ó½±¡ª¡ª¡°Pioneering Design¡±½±Ïî¡£DESERTECÊÇÒ»¸öÖÂÁ¦ÓÚͨ¹ýÔÚɳĮµØÇø½¨Éè¹âÈȵçÕ¾À´ÎªÅ·ÖÞÌṩµçÁ¦µÄ×éÖ¯£¬ËûÃÇÒѾɸѡ³öÁË4¸öµçÕ¾£¬ÕâЩµçÕ¾µÄÅäºÏµãÊǶ¼Äܹ»°ÑÌ«ÑôÄÜÖü´æºóÓÃÓÚÒ¹Íí·¢µç¡£ËûÃǽ«GemasolarµçÕ¾ÐÎÈÝΪ¡°Î´À´µçÕ¾µÄÏÈÇýÕß¡±¡£
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".
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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.
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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.
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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.
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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.
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Task principle of electric heater:
Electric heater is a kind of energy consumption converted into heat energy to stop heating materials to be heated. In the task, the high-temperature fluid medium enters its output port under the pressure of the pipeline, along the specific heat exchange channel outside the electric heating vessel, and takes away the low-temperature heat energy occurred in the task of the electric heating element by using the method designed by the principle of fluid thermodynamics, so as to reduce the temperature of the heated medium and lose the low-temperature medium required by the process at the outlet of the electric heater.
The following Wansen electrical equipment introduces 8 functional features of the electric heater:
1. Small volume and large power: the heater mainly adopts bundle type tubular electric heating element.
2¡¢ It has the advantages of fast thermal response, high precision of temperature control and high comprehensive thermal efficiency.
3. High heating temperature: high task temperature of heater design Zui can reach 850 ¡æ.
4. The medium outlet temperature is average and the temperature control accuracy is high.
5. Wide range of application and strong compliance: the heater can be used in explosion-proof or ordinary places, with explosion-proof grade up to D ¢ò B and C, and pressure resistance up to 20MPa.
6. Long service life and high reliability: the heater is made of special electric heating materials, designed with low external power load and multiple maintenance, which greatly increases the safety and service life of the electric heater.
7. Fully automatic control: through the heater circuit design according to the requirements, it is convenient to complete the automatic control of outlet temperature, flow, pressure and other parameters, and can be networked with computer.
8. The energy-saving effect is obvious. 99.99% of the heat generated by electric energy is transmitted to the heating medium.
The above is what Zhejiang Wansen Electrical Equipment Co., Ltd. introduced to you, hoping to help you.
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