Abstract: Horizontal axis wind turbine: price is about 7,000 yuan/kW to 8,000 yuan/kW, 1500 kW: price is 10.5 million yuan to 12 million yuan, tower height is 70 meters to 80 meters, rated wind speed: 12 m/s—14 m/s. The installation cost is about 2 million to 3 million yuan, and maintenance costs hundreds of yuan at a time. Assuming: the annual average available wind speed is about 4,000 hours. Not counting maintenance costs, it will take 7 to 8 years to recover the capital and make a profit.
The Huastron prestressed frame steel tube wind power tower invested by Qingdao Jinjiaozhou Asset Management Co., Ltd. is 170 meters high.
The form currently designed by "Huastron" is a frame type. The four corners have stronger bearing capacity through the lower tower body, which solves the problem of welding fatigue and can effectively avoid resonance. , this technology with more than 20 national and international patents can significantly increase the height of the tower, better utilize wind resources, and increase the effective hours of power generation.
The production process of wind power towersGenerally as follows:
CNC cutting machine cutting, thick plates need to be beveled , after the plate is formed by the plate rolling machine, spot welding, positioning, and welding of the inner and outer longitudinal seams are carried out after confirmation. After roundness inspection, if there are any problems, a second rounding is performed. After the single-section cylinder is welded, a hydraulic group is used to align the rollers. After the frame is assembled and spot welded, the inner and outer circumferential seams are welded.
After straightness and other tolerance inspections, after flange welding, non-destructive testing and flatness inspection of the welds, sandblasting and painting, after completion of internal parts installation and finished product inspection, transport to the installation site.