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The dish solar clean energy heating demonstration project has been successfully operated in GuazhouThe dish solar clean energy heating demonstration project has been successfully operated in GuazhouTo promote clean energy heating in winter in northern China is an important strategic deployment of the CPC Central Committee, which is of great practical significance to ensure people's warm winter and improve the atmospheric environment. In order to implement the national energy development "13th Five-Year plan" document spirit, to the country Promoting clean energy heating in winter in northern China is an important strategic deployment of the CPC Central Committee, which is of great practical significance to ensure people's warm winter and improve the atmospheric environment. In order to implement the spirit of the 13th Five-Year Plan document for national energy development, guided by a series of supporting policies on "clean energy heating" issued by the national and local governments, Guazhou County, Jiuquan City, Gansu Province actively responded to the national call to "protect the blue sky". As a demonstration project for the construction of the first batch of pilot projects, suoyang urban coal-fired boiler clean energy renovation project is supported by the overall planning and integration of financial funds related to agriculture.
Project overview SuoYangCheng town of coal-fired boiler clean energy renovation project USES the Oriental RCL new energy technology development co., LTD. (hereinafter referred to as "the Oriental RCL) advanced disc type solar energy collection hot concentrated track, efficient, concentrate the sun's energy through solar antifreeze medium high temperature heat exchange into more than 60 ℃ hot water for heating. Construction of the project began in November 2018, and the heat was collected into the pipe network for heating at the end of December. The project designs and installs 12 sets of disc solar concentrator tracking heat collection system equipment, and installs a total of 6 sets of disc solar concentrator tracking heat collection system equipment and 1 set of 600kW electric boiler equipment in the first phase, which can meet the heating area of the whole town (office and public facility buildings) of about 7000 square meters. Project process and overall control flow The clean energy heating system with disc solar energy and electric boiler is divided into three subsystems: ① disc solar collection system; ② Antifreeze heat transfer system; ③ Heat exchange and heating system. The signal, execution, and control requirements of the above three subsystems are all completed by the PLC upper computer main controller; The system is equipped with a 2 * 100m3 water storage tank. When the average DNI index of solar illumination intensity is 800 W/㎡, the annual heat collection capacity is greater than 3000 GJ. After testing, the solar thermal conversion efficiency of the dish type solar energy collection equipment reached 86%. It is reported that the first phase of six disc solar collectors can meet the heating needs of the entire town during the daytime, and use electric boilers for low valley electric heating at night for heating; In the second phase, an additional 6 disc solar collection devices will be added, totaling 12 disc solar collection devices, which can meet the 24-hour heating needs of the entire town. When there is continuous rainy and dry weather for more than 2 days, the system will automatically start the electric boiler for supplementary heating. Implementation effect As of now, the actual operation of the project has reached: Energy saving and emission reduction indicators for the heating section The first phase (6 units) consumes approximately 860000 kWh of electricity during the heating season, saving electricity costs of about 450000-500000 yuan per heating season. Each heating season consumes about 120 tons of standard coal, reducing CO2 emissions by 319 tons, SO2 emissions by 21 tons, and nitrogen oxide emissions by 10 tons. In addition, in addition to heating during the heating season, the comprehensive utilization schemes for heat include: 1. It can generate 25000 tons of hot water and provide paid or free domestic hot water supply for residents, welfare facilities, and tourism service facilities; 2. Partial underground 'cross season heat storage' can be adopted, and it can be utilized reasonably and scientifically. In summary, the economic and social benefits of developing additional projects are significant, and the development prospects are broad. |
