News Center

News Center

News Center

Tower: The trend of large-scale fan has been set, prompting tower technology upgrade.

Wind power tower refers to the connecting component between the wind turbine and the foundation ring. It mainly plays a supporting role in the wind turbine and absorbs the vibration of the unit at the same time. It is an important component required to realize the functions of wind turbine maintenance, power transmission and transformation. Its cost accounts for about 10% of the construction cost of onshore wind power and about 5% of the construction cost of offshore wind power.

2024-03-08

Wind turbine tower

Wind turbine tower

At present, according to the different structural forms and materials used, it is generally classified as all-steel tower (split piece), concrete-steel hybrid tower (mixed tower) and truss type. Among them, the full steel structure tower is also called flexible tower, which belongs to the main scheme of high tower at present. The whole tower is divided into 4-6 sections for transportation and installation, which can meet the transportation requirements of most sites. Because the whole steel structure has lighter weight and swings violently in strong wind season, it may resonate with the wind wheel, thus reducing the service life of the tower and increasing the accident risk. The supply of flexible tower is also easily affected by steel price, the overall price is relatively high (about 8000 yuan/t); The second type of concrete and some steel structures are called mixed towers. The main advantages of reinforced concrete towers are that they can be constructed on site, reducing the transportation cost and the overall tower cost. The concrete part is formed by prefabricated formwork at one time, with relatively long construction period and high installation cost. The overlapping part of concrete and steel structure is also easy to form weak points to absorb stress, if the concrete part is not painted, the overall shape is not as beautiful as the flexible tower, and there will be some problems in dismantling and recycling after the service period expires. The bottom of the truss tower fan structure is based on trusses, with high structural rigidity and high bearing capacity, which can effectively avoid resonance, is about 20% lighter than the traditional steel tower, and effectively reduces the volume and weight of transportation. There are some pilot projects at sea and on land, at present, the market share is still relatively small.

2024-03-05

Safety Operation Regulations for Crane

Safety Operation Regulations for Crane

Before use, five principles should be followed: one to wear, two to wear, three to choose, four to check, five to try.

2024-02-21

Corrosion Hazard Analysis of Fire-fighting Pipeline in Large Storage Tank

Corrosion Hazard Analysis of Fire-fighting Pipeline in Large Storage Tank

Fire protection system is the last barrier to reduce the risk of large storage tanks. According to the characteristics of large storage tank fire protection system, this paper analyzes the corrosion hazards of fire protection pipelines. Its corrosion types mainly include chemical corrosion

2024-02-08

Crane basic maintenance must know!

Crane basic maintenance must know!

Truck crane (crane) belongs to the characteristics of both construction machinery and road machinery, because of its own complexity, so only daily good maintenance, maintenance can prolong the service life of equipment, reduce the failure rate, in order to improve the reliability and economy of equipment. However, many users in the industry, and even old users with many years of experience, do not pay enough attention to this, which not only causes the equipment failure rate to rise, increases the total maintenance cost, but also reduces the equipment attendance rate, and even delays the construction period, resulting in certain economic losses.

2024-01-17