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Fan installation

Fan installation

According to the two main hoisting methods of domestic offshore wind power installations, the company has formed a way to meet the challenges of the wind power market with split installation as the main and integral installation as a supplement. In the first phase, the company invested two jack-up platform ships as the main body of construction for the split installation, and the overall installation adopts Huaxi 5000 as the main body of construction. The split installation sequence is from bottom to top to install the bottom section, middle section, and upper section of the tower, hoist the nacelle hub complex, and then install the single blade. The normal construction efficiency is 3 days/unit.

10-22

2020

Fan installation
Fan installation
Foundation pile

Foundation pile

Combining the accumulation in the field of marine engineering, our company mainly operates the 5000-ton azimuth crane Huaxi 5000 and the 1200-ton skid-type crane Princess Mona. Equipped with a jacket in the form of a foundation for the construction of large-diameter single piles without transitional sections. The jacket sits on the seabed and is equipped with a double-layer large hydraulic pile holding device for centralizing and holding large-diameter single piles during the process of sinking. Equipped with a gravity-type roll system that can display the verticality of a single pile in real time and automatically correct the deviation, and can ensure that the verticality of the single pile is within three thousandths. Our pile sinking diameter ranges from 4m to 8.8m, which can meet the construction of large-diameter single piles in existing wind farms.

10-22

2020

Foundation pile
Foundation pile
Rock-socketed single pile

Rock-socketed single pile

The company has set up a large-diameter offshore rock-socketed equipment research and development team, developed a vertical composite roadheader, and designed and manufactured a jack-up rock-socketed platform for offshore rock-socketing construction with drilling rigs. The vertical composite roadheader can meet the requirements for rock-socketed construction of single piles with a depth of 80 meters below the mud surface and a diameter of less than 10 meters. The maximum rock breaking strength can reach 220MP, and the drilling speed can reach 600mm/h. The jack-up rock-socketed platform can meet the requirements of offshore single-pile rock-socketed construction within 30 meters of water depth, increase the anti-wind and wave ability of offshore rock-socketed construction, and improve construction efficiency and safety.

10-22

2020

Rock-socketed single pile
Rock-socketed single pile
Jacket construction technology

Jacket construction technology

At present, there are two mainstream methods for jacket construction. One is to install the jacket first after sinking the pile; and the other is to install the jacket first and then the pile. For the construction method of piling and installation of jackets, we cooperated with Zhenhua to develop a multi-pile pile holder. We used the relatively idle time of the ship to complete the construction of multiple jackets. Regarding the foundation construction method of the sea-lift station where the jacket is placed first and then the pile is driven, we have accumulated rich construction experience in jacket leveling and grouting construction technology. The control of key parameters such as the horizontality of the jacket and the verticality of the foundation piles has reached the domestic leading level.

10-21

2020

Jacket construction technology
Jacket construction technology
100 single piles of Huaxi 5000 South China Sea were successfully completed

100 single piles of Huaxi 5000 South China Sea were successfully completed

At 11 o'clock on September 12, with the final hammer of the largest domestic MENCK3500 hydraulic hammer, the 100th large-diameter single pile constructed by Huaxi 5000 in the South China Sea was successfully settled in place. It marks an important node moment for Huaxi 5000 in the field of wind power construction in the South China Sea, and it is an incentive to the entire team, which lays a more solid foundation for follow-up work like a pile on the sea.

09-14

2020

100 single piles of Huaxi 5000 South China Sea were successfully completed
100 single piles of Huaxi 5000 South China Sea were successfully completed
Huaxi 5000 South China Sea Wind Power Construction Project Incentive and Commendation Conference was grandly held

Huaxi 5000 South China Sea Wind Power Construction Project Incentive and Commendation Conference was grandly held

The South China Sea in April is hot, but it is warm and glorious for our Huaxi Offshore Wind Power Project. At 20:00 on May 14, 2020, the "Huaxi 5000 South China Sea Wind Power Construction Project Incentive and Commendation Conference" was grandly held in the conference room on the third floor of the Huaxi 5000 Ship. The meeting was presided over by the company’s general manager Dou Zhengman, the company’s leadership team and all the Huaxi 5000 ships The crew participated.

05-15

2020

Huaxi 5000 South China Sea Wind Power Construction Project Incentive and Commendation Conference was grandly held
Huaxi 5000 South China Sea Wind Power Construction Project Incentive and Commendation Conference was grandly held
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