TPI Composites Inc (US-funded enterprise) has invested a total of 100 million US dollars in Yangzhou, China to produce the world's longest-length and largest-diameter fan blades at the same power, which has attracted widespread attention from readers. Where is the "most" fan blade made in Yangzhou? Yesterday, the reporter made another visit.
Specifications Leading the world in length, diameter, and power
"Fan blade industry technology updates fast, major manufacturers are constantly refreshing their blade length records." The relevant person in charge of the company told reporters that the current domestic wind turbine blades with a rated power of 4 MW is about 70 meters in length. The company The forthcoming fan blade length is 73.7 meters and the diameter of the wind wheel is 150 meters, which is currently the world's highest in the rated power generation rate of 4.2 MW.
According to reports, TPI is a leading global manufacturer of wind turbine blades and a supplier of Denmark's Vestas Wind Technology Group, the world's number one wind power equipment manufacturer. Deepie has four global bases in the United States, Turkey, Mexico and China, including three plants in China, namely Dafeng, Taicang and the upcoming Yangzhou plant.
Materials Use the world's most advanced composite materials
Is the "weight" of the world's longest fan blade of the same class the heaviest in the world? The reporter asked puzzled. The person in charge explained: "The fan blades are mainly made of composite materials. If traditional glass fiber composite materials are used to make the blades, the design weight of the blades must be high to ensure the safety of the blades. Such blades are greatly When the main engine load is increased, the power generation of the whole machine will be greatly reduced. To overcome this defect, the company uses the world's most advanced carbon fiber material for production, replacing the traditional glass fiber material. "
What is the difference between using new materials and traditional materials? According to reports, after the use of carbon fiber materials, the blade weight is reduced by 30%. Due to the special properties of high carbon fiber strength, high temperature resistance, good fatigue resistance, and good corrosion resistance, the fan blades produced are lighter, thinner, and more stable. This carbon fiber blade forming technology is an exclusive patent of Vestas, and it is also the most advanced and efficient carbon fiber material production technology in the world.
Process Using the most advanced production process
Producing a blade with the highest specifications and the best materials in the world is, of course, inseparable from a good production process. "The blade structure is complex, the key component is the carbon beam, which is equivalent to the human spine, and is the backbone of the blade's whole body. The dedicated carbon beam processing equipment has been successfully developed for this purpose," said the person in charge. For Diepie, it is not a big process problem. A more advanced production process is the use of laser positioning to assist the manufacturing process. The blade production process requires positioning the carbon beams and core materials of the blade body. If manual positioning is extremely easy, This will lead to errors, and the large errors will eventually lead to major product quality defects, and even the scrap of the blades. The so-called 'minimum difference, thousands of miles' is the reason. In view of this particularity, the company uses the world's most advanced laser positioning. Equipment for precise positioning of blade production. "
"In addition, the company has adopted original lightning protection technology to protect the blades from lightning strikes according to customer requirements." The person in charge said, "According to the current project progress, the company decided to start production next month, one month ahead of schedule. Four new molds were installed each year, and 500 to 1,000 blades could be produced in that year. "