1. First of all, we need to understand some things.
The year-round wind source in this area, the annual average wind speed at the height of the wind wheel should not be less than 6 . /second;
( You can check with the local weather department and local residents for the source of the wind. Residents usually know better and the weather office has more data);
< p>2. (preferably higher or further from the sea) Nearby places);3. Network installation conditions, extreme weather conditions, price of local electricity consumption, etc.
4. The area must be large, at least several square kilometers;
5. Establish a wind measuring tower to measure wind resource data for more than one year; of the departments concerned.
6. Ultimately, it is necessary to obtain the consent of the local government and residents, otherwise everything will be in vain.
Faced with harsh natural conditions, the wind project owner, Huaneng Group, made many attempts from the early stages of wind farm construction, the project initially planned to use crawler cranes for power wind turbine. lifting wind turbines. The technology is mature, widely used and stable, and is widely used in wind farm lifting. However, the lifting height of wind turbines in wind farms can reach 130 meters, which also means that the crane requires more than 160 meters. meters of space. The ground conditions of most wind farms cannot meet this requirement.
Through the cooperation between Huaneng and Envision, the entire aerial lifting method was finally adopted.In total, more than 10 parts of the 140-meter-long boom of the crane were moved to 20-30 meters above the ground and suspended for assembly, soso that the lifting can be carried out and the project area can be reduced as much as possible. It is understood that such a large-scale use of robotic arm lifting solutions for aerial work is still the first. in the national mountain lifting industry. In addition, because the topography of each wind turbine location in the region is different, the long-term project staff also developed a separate and strict implementation plan for lifting each wind turbine, ultimately achieving the goal . lifting more than 70 overhead cranes.
The "one machine, one box" method was used on site to solve the difficultyThe lifting construction of China's largest mountain tower wind turbine set a record When the lifting plan was created, it took more than half a month to hoist the wind turbine, which took the longest. As the construction plan continued toimprove, the final construction phase was the fastest to strictly guarantee safety and maintain the forest ecology of the wind turbine. lifting only took 5 days. Completed, the normal lifting time has been reduced to 7 days, and the lifting costs in mountainous areas have been significantly reduced.
Judging from the current development situation, taking into account the complex geographical conditions and arduous construction process, the development of wind power, from the perspective of the owners themselves, in order to to reduce costs when wind resources are limited, it may be necessary to choose higher capacity models and use taller towers, more effort has been made in the form of tubes and longer blades, while that lifting prices are too high due to this year's "peak installation period." High, the future development of wind energy inMountainous areas should also avoid peak periods to reduce construction and other costs,which will also help drive up wind power prices as quickly as possible in areas with low wind speeds. Accelerate the development of mountainous areas, such as the former revolutionary bases in Yan'an, Shaanxi.