2023-07-02 04:35:00
Original title: The super-large “windmill” hoisting successfully registered the largest offshore wind turbine put into operation in my country
After the 16MW offshore wind turbine is completed and connected to the grid for power generation, it will become the largest offshore wind turbine that has been put into operation in my country.
“Big windmills creaking and whirling around” will not only bring “beautiful scenery”, but the electricity produced will also illuminate tens of thousands of families. This Wednesday, the world’s first 16MW offshore wind turbine was successfully hoisted at the Fujian Offshore Wind Farm. The 123-meter ultra-long wind turbine blades are quite difficult to install at high altitudes. Coupled with the influence of wind and waves on the sea, the installation operation is more difficult. This requires cooperation with the offshore installation platform – “Baihetan” This ship can be regarded as a leader in the field of installation ships.
CCTV reporter Zhang Congjing: The big guy next to me is the installation platform of the 16 MW offshore wind turbine – “Baihetan”, which has a 120-meter “long leg” and a 130-meter “giant arm”. It can lift more than 1,300 family cars, firmly grasp the fan components like an “arm”, and complete high-altitude assembly by “building blocks”. The deck area is equivalent to 10 basketball courts, and it can also be used in huge waves. Stand still.
The center height of the 16 MW hub to be installed this time is 152 meters, which is 34 meters higher than the current 10 MW wind turbine used in batches at sea. In addition, the wind turbine is also heavier, which is not a small test for the operation technology. . From the outside, this fan is an “iron bump”, but the sensors and laser radars all over the machine can sense information such as temperature, humidity, wind speed, etc., and digitally track the operating status of the unit. “Smart”, adjust the fan angle and power. The most difficult part of the whole process is the lifting of the blades.
Zhang Guiyang, Goldwind Offshore Engineering and Operation and Maintenance Technical Engineer: The blade hoisting is very difficult. First, the blade is very long. The blade length is 123 meters. That is, the number of bolts on the blade is very large, there are 176 bolts, and these bolts need to be accurately docked at an altitude of 100 meters.
An hour later, due to good sea conditions, the blades were successfully docked in the air following hoisting and rotation, and then the staff screwed the bolts firmly at high altitude to complete. After one day, the three blades were “threaded” and the installation was successful. This also means that all offshore wind turbines have been installed. The motor unit will enter the debugging and test stage before grid connection, and is expected to be connected to the grid for power generation in early July.
Lei Mingshan, Chairman of Three Gorges Group Co., Ltd.: This 16-megawatt offshore wind turbine, under rated conditions, can generate 34.2 kWh per revolution for a single unit, and can output more than 66 million kWh of clean electricity per year on average. , can meet the electricity consumption of 36,000 households of three for one year, save regarding 22,000 tons of standard coal, and reduce carbon dioxide emissions by regarding 54,000 tons. The reduction in the cost of offshore wind power will greatly promote the upgrading and progress of related technology industries, and improve the economics of offshore wind power in an all-round way.
Since the beginning of summer, the electricity load in many places in the south has gradually increased. For example, in Fujian Province, it is predicted that the peak electricity load in the province this summer will increase by 5.9% compared with the peak load in last summer. The construction of offshore wind turbines will enter every household in the near future to reduce the burden on urban electricity consumption. In the future, my country will further accelerate the construction of offshore wind power. It is estimated that the development scale will reach 90 million kilowatts by 2030, providing more green kinetic energy for economic development.
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