A few days ago, Sinoma Wind Power Blade Co., Ltd. successfully approved the production of wind turbine blades with a length of 40.25 meters and 1.5 megawatts. This is China's longest-developed domestic wind power blade, indicating that this company is also an independent development and manufacturing capability of China's megawatt-class blades. The Sinoma Corporation blade formed in June 2007 has inherited nearly 50 years of technology and experience in the research and development of composite materials products of Beijing FRP Research and Design Institute. It has become the leading company in the research, design and manufacture of wind power blades and their molds. This listed company Sinoma Technology's subsidiary R&D center is located in the Beijing Economic and Technological Development Zone. The mold production center and blade production base are located in Beijing Badaling Economic Development Zone. The wind turbine blade code just released was Sinoma40.2, which was successfully developed by Sinoma Blades and Germany's famous blade design company. According to experts from the China Epoxy Resin Industry Association, the blade is an epoxy resin composite with a cylindrical base and a diameter of more than 2 meters. It adopts the international mainstream vacuum-assisted infusion molding process and more advanced aerodynamic shape design. It is specially developed for the characteristics of wind resources with wide wind speed in China.
Compared with other models of 1.5 MW fan blade products, this product has the advantages of low unit load, large swept area, and high power generation efficiency. According to experts from the China Epoxy Resin Industry Association, epoxy resin fiberglass composite fan blades are the key core components of wind turbines and are the most expensive components, accounting for about 20 to 25% of the unit's production cost. At present, China has been able to partially produce 1.5 MW of blades, which basically meet the needs of existing units. China's domestic manufacturers mainly include Lianyungang Zhong Lianzhong and Shanghai FRP Research Center. Some well-known international companies also settled in China. LM, Vestas, Gamesa and others. Sinoma Technology Wind Power's 40.25-meter-long product was launched and became the longest-developed domestic wind power blade. At present, Sinoma has an annual production line of 10 sets of molds and 200 sets of Sinoma40.2 blade production capacity. It can produce 600 wind turbine blades each year. Previously, the company signed supply contracts with wind turbine manufacturing companies such as Sinovel Wind Power Technology Co., Ltd., and 30 wind turbine blades that have gone offline have been named as “flowersâ€. Five sets of blades have been transported to wind farms in Northeast China for installation.
According to experts from the China Epoxy Resin Industry Association, China has a vast territory, a long coastline, and abundant wind energy resources. According to the preliminary findings of the Chinese Academy of Meteorological Sciences, the total reserve of wind energy resources in China amounts to 3.226 billion kW, which is the largest in the world. The estimated development energy is over 1 billion kW, of which land is about 253 million kW and offshore is about 750 million kW. The resource-rich areas are mainly in the northwest, northern North China, northeast and southeast coastal areas, so the potential for the development of wind power is huge. At the same time, with the rapid increase in global energy consumption, the consumption of coal, oil, natural gas and other resources is accelerating, and people’s awareness of environmental protection and energy conservation is gradually improving and technological development. As a renewable energy source, wind power will inevitably develop rapidly in China. . For a long time, wind power equipment manufacturing technology has always been a major “soft rib†for the development of China’s wind power industry. China’s Renewable Energy Society’s secretary-general, MENG Xian’e, once bluntly pointed out that although the domestic wind power market has made great progress and the prospects are very promising, the overall level of backwardness in wind power manufacturing is still a major concern. China's wind power manufacturing industry also relies heavily on foreign technology, especially some core equipment can only rely on imports, that is to say China's wind power manufacturing level is still relatively weak, the consequence is that wind power generation costs are relatively high, which is a hindrance to the development of wind power market Big bottleneck. It is reported that its material bottleneck is the epoxy resin composite blade, but also not reach the length.
Previously, the 1.5 MW wind power blade production system of the Shanghai FRP Research Institute has been certified. The 1.5 MW wind turbine blade production system of Shanghai BSG was certified by China Classification Society last year. Both parties also signed wind turbine blade certification agreements of 2 MW and 3 MW. Luo Huimin, dean of the Shanghai FRP Research Institute, revealed that the first 2 MW wind turbine blades and 3 MW wind turbine blades developed by the institute are expected to go offline mid-year and at the end of this year. At present, the institute has formed a production capacity of three sets of molds and produces 200 sets of 1.5 MW wind power blades at the same time. It has already demonstrated its capabilities in large-scale wind farms in Jilin, Inner Mongolia and Gansu. At the end of last year, wind power blades with a length of 38 meters and a power generation capacity of 2 megawatts also went offline in Baoding National High-tech Zone in Hebei Province. The blade is independently developed by Huayi Wind Turbine Blade Research and Development Co., Ltd., which is a specialized R&D institution for wind turbine blades jointly initiated by the Institute of Engineering Thermophysics, Chinese Academy of Sciences, Baoding National New Energy Equipment Industry Base, and China Wind Energy Association. Since its establishment more than two years ago, it has been committed to establishing a blade R&D system with independent intellectual property rights and has become the first wind turbine blade independent R&D institution in China. According to the rapid growth of wind power market both at home and abroad, Sinoma Leaf is currently working on the development of wind turbine blades supporting more than 2.5MW units. It is expected that by 2010 five product lines will be formed, and the scale of production will be further expanded. It will be necessary for the development of wind power industry in China. Contributions.