1. Foundation construction, the main work is the foundation civil construction of wind turbines, and may also include the construction of booster stations. Construction engineering qualifications are required, and general construction companies are acceptable
2. Wind turbine crane installation The work mainly includes wind turbine hoisting and electrical installation, which requires power equipment installation qualifications and at least 400T crane installation qualifications. Generally, provincial and municipal power construction companies have this qualification
3. Collection line laying, mainly including on-site The laying or erection of lines requires power equipment installation qualifications, which many construction units have
4. Wind turbine debugging requires on-site personnel from the equipment manufacturer
5. Main transformer debugging requires equipment Factory debugging
Generally, there is only so much, and there may be some additional work such as SVC installation and debugging, communication line debugging, etc., which requires corresponding construction teams
How are wind turbines transported? From the mountains?
Use the short holiday to drive from Shaodong Lingguandian via Jianling Highway (Jianjialong to Lingguandian). The road condition of Jianling Highway is very good. Except for one old bridge that has been rebuilt, the road to Shaodongdui The first Sanduoqiao, to the Huanghuangling Forest Farm in Shaodong, the first stop is Shuanghe Reservoir, with beautiful mountains and clear waters. After some inquiry, I found out that there are several difficulties and dangers. The mountain is high and the road is steep and dangerous. The road is not hardened. The scenery is very good and everything is clear. Just because It was dangerous and foggy, so I didn’t dare to take more photos. I arrived at Guanyin Village. The Guanyin Stone has been independent for tens of millions of years. Next to it, there are Guanyin Hall, where people come and go to worship Buddha. Further up, there should be Yakou collar. Looking forward, you can see That is the village of Qidong people. As we can see from the future, it is also in Shaodong. When we reach the top of Yakou Lingding, there are sidewalks on the left and right built for the wind power station. The sidewalks are paved with cement-stabilized sand, which has not yet been completely hardened. The sidewalks will The contiguous mountains are connected. If you get off the car and walk, you will see construction trucks, excavators, engineering command vehicles, large cranes, trailers, and huge wind turbines everywhere. Ask the construction workers. A total investment of about one billion yuan was invested in this project. There are 50 wind turbines (standing in the mountains on the county boundary, visibility is about tens of meters due to heavy fog), each 145 meters high, each with 2 megawatts per hour. The project is expected to be completed by the end of the year. I visited several wind power stations. The mountains were too high and the visibility was low. My heart was pounding and I didn’t dare to look down. The driving speed was only 10 kilometers per hour. From Yakou led back to Guanyin Stone and went to Shuanghe Library to visit old classmates. Let’s meet up with an old classmate’s farmhouse on its opening day.
Where is suitable for building a wind farm
Hello! Under normal circumstances, in order to avoid accidents such as damage to parts, products such as windmills are not transported directly. Instead, the parts are transported. The large parts and tiny parts are packaged separately and transported to the rugged mountains for assembly. If it solves your problem, remember to click Accept, dear.
When building a wind farm, meteorological conditions and social and natural conditions should first be considered.
1. Meteorological conditions?
1.1. The quality of wind energy should be high. The primary condition for a wind farm site must be abundant wind energy resources. The annual average wind speed is above 5m/s, at a height of 30mIt is suitable to build large-scale wind farms only when the effective wind power hours are above 6000h and the effective wind energy density is above 240w/m^2.
In fact, the factors that affect the quality of wind energy include annual average wind speed, average wind power density, wind frequency distribution, available hours of effective wind speed, wind direction stability, etc. ?
1.2. The prevailing wind direction at the wind farm site is stable. Stable wind direction can not only increase wind energy utilization, but also extend the life of wind turbines. ?
1.3. The degree of turbulence in wind farms should be small. Wind is random and affected by the surface roughness of the site and nearby obstacles. The formation of wind field turbulence is generally caused by the wind channel being too rough or the sudden changes in wind speed and direction caused by obstacles. It will not only affect the output of the wind turbine, but also cause vibration and uneven loading of the wind turbine, reduce the service life of the wind turbine, and in serious cases may cause accidents in which the blades fly out. ?
1.4. There should be fewer natural disasters at wind power generation sites. Strong winds, hail, thunderstorms, earthquakes, etc. will all affect wind turbines. ?
2. Social and natural conditions?
2.1. The terrain of the wind power site should be relatively flat and the geological conditions should be good to facilitate civil construction. ?
2.2. Convenient transportation. It is necessary to consider whether the supply of equipment and the transportation of main construction materials of the proposed wind farm are convenient. Is it conducive to the construction and transportation of large cranes and flatbed trucks? ?
2.3. The wind farm should be as close as possible to the grid access point. For example: close to existing 10KV and 66KV substations and lines to reduce power loss and delivery project costs. Occupy as little cultivated land as possible to reduce ecological damage. ?
2.4. Surrounding environment. The construction of wind farms generally affects the normal life and migration of birds and birds. In order to protect the ecology, the site should try to avoid bird flight routes, migratory birds and animal habitats, etc., and stay away from nature reserves, military facilities, and densely populated areas. Region etc.