Wind tower is a large tower-shaped structure mainly used to measure and observe the movement of air flow near the ground.
It is usually made of steel or concrete and can reach tens or even hundreds of meters in height. The top of the wind tower is usually equipped with anemometers, weather vanes and monitoring equipment such as temperature and atmospheric pressure, which can observe and record the wind conditions on the site all day long.
The main function of wind towers is to provide data and information about wind energy resources to help people better understand and evaluate wind energy resources in a region. This data can be used in siting and design of wind farms and other areas where understanding of wind energy resources is necessary. From pRead, wind turbines can also be used in fields such as weather observation and environmental protection.
In addition to observing wind energy resources, wind towers can also serve as a communications relay station to transmit signals and information. In some areas, wind turbines are also used to install solar panels or other renewable energy equipment to provide electricity.
Wind tower installation precautions
1 Site selection: The location of wind towers should take into account factors such as environment , topography and weather conditions. Choosing a suitable location ensures that the wind tower can accurately measure and observe wind energy resources.
2. Installation Foundation: At the selected location, a foundation must be installedto support the wind tower. The depth and strength of the foundations should be designed according to the height and usage requirements of the wind tower.
3. Install the tower body: Install the wind tower body on the foundation to ensure the verticality and stability of the tower body. Pay attention to safety during installation to avoid accidents.
4. Install monitoring equipment: Install anemometer, weather vane, temperature, air pressure and other monitoring equipment on the top of the wind tower to ensure the accuracy and stability of the equipment. At the same time, regular maintenance and calibration of the equipment is necessary to ensure the accuracy of the measurement data.
Mechanical anemometers, generally called cup anemometers, include hemispherical cups and conical cups. For speeds ofe weak winds, hemispherical anemometers are better. For high wind speeds, cone anemometers are better. Both have a vertical axis relative to the horizontal plane, and there are also those that have a horizontal axis, such as small wind-powered tankers. There are not many users of wind energy, and it is suitable for situations where the environment is relatively harsh, such as corrosion, low temperature, etc. The accuracy is generally around 0.5 m/s. If the starting torque is large and the wind is too weak to measure it, the measuring range is generally 3-50-70 m/s. It can only measure wind speed in one direction, usually the horizontal direction. Test data has a lot to do with the quality of the installation. If the installation is not level, the master data will be completely useless and can of course be corrected.
The anemometere ultrasonic, with a precision of 0.1 m/s, poses no problem. It is estimated that it can be used between 0 and 100 m/s, and 3 dimensions can be measured simultaneously. Sampling speed is also not a problem. The price is not cheap and can be used for a long time.
Today, half of the wind turbine cabin is equipped with an ultrasonic hemispherical cup and a wind direction indicator.
There are also lasers and ultrasound for on-site measurement. The laser anemometer can be placed directly on the ground to measure data at an altitude of 0-200m at a time, and there is no problem with the three-dimensional flow field. The valuable equipment was removed immediately after halfway through the tests. No one dared to use it in the wild. . .