1. The world's largest and Asia's first offshore converter station was officially shipped to Nantong, Jiangsu

On July 8, a "steel giant house" equivalent to 15 stories high, set sail from the river to the sea with a whistle! This is the site of the delivery ceremony of the world's largest and Asia's first offshore converter station-starting from the bank of the Yangtze River in Nantong, Jiangsu.

It is reported that the Jiangsu Rudong project of the Three Gorges Group is the first project in Asia to apply flexible DC transmission technology to offshore wind power. During the construction process, many major technical problems such as the construction of converter stations and the research and development of DC submarine cables were overcome. The main electrical equipment was adopted Domestic brands have filled a number of technical gaps in the field of domestic offshore engineering, and are of great significance to the development and construction of large-capacity offshore wind power in my country's oceans. After the project is completed and put into production, the annual on-grid power will reach 2.4 billion kwh, which can meet the annual power consumption of about 1 million households. Compared with coal-fired power plants of the same scale, it can save about 740,000 tons of standard coal and reduce about 1.83 million tons of carbon dioxide each year, effectively helping to achieve the goal of carbon peak and carbon neutrality.

Source: China Three Gorges

2. Hoisting of the first wind turbine for China's first offshore wind power bidding project

Recently, my country's first competitive configuration project-Shanghai Fengxian Offshore Wind Power Project (hereinafter referred to as "Fengxian Project") successfully completed the first unit hoisting. The project is located in the northern waters of Hangzhou Bay, Fengxian District, with a construction capacity of 200,000 kilowatts. It was developed by Shanghai Haiwan Xinneng Wind Power Co., Ltd. (hereinafter referred to as "Haiwan Xinneng"). The first crane model is the Goldwind GW184-6.45MW offshore unit. This unit is equipped with 90-meter blades and adopts customized load reduction strategies and technical solutions. Under the premise of ensuring the reliability and safety of the unit, it can significantly improve Power generation benefits.

Source: Goldwind Technology

3. Electric wind power adds another tool for offshore hoisting

Recently, Shanghai Electric Wind Power Group successfully completed the domestic first set of general large-megawatt turning car tooling on-site testing. This set of tooling has good versatility and can cover electric and wind power direct drive 6/7/8MW models. The general large megawatt barring car uses its own highly integrated system algorithm to realize the rotation of the impeller of the unit in an unbalanced state, and comprehensively consider the dynamic load state of the actual movement of a single blade and two blades and the load under emergency conditions. Ensure that the turning device can adapt to the complex environment on site.

The application of general large-megawatt barring tooling can effectively reduce the maximum construction height of the hoisting vessel, expand the available resources of the hoisting vessel, and reduce the cost of installing the vessel for customers. In addition, this universal large-megawatt barring gear independently developed by Electric Wind Power can solve the replacement of single blades and other large components of the direct-drive large-megawatt unit in the future when the impeller is in an unbalanced state. It is the post-operation and maintenance of the direct-drive large-megawatt unit Provide reliable technical support.

Source: Shanghai Electric Wind Power Group

4. Zhoushan Huafeng completed the modification project of the offshore wind power installation platform "Guoneng Boqiang 01"

Recently, Shanghai Boqiang Heavy Industry Group Co., Ltd. (hereinafter referred to as "Shanghai Boqiang") offshore wind installation platform "Guoneng Boqiang 01" delivery ceremony was held at Zhoushan Huafeng Shipbuilding Co., Ltd. (hereinafter referred to as "Zhoushan Huafeng") Base No. 1 came to a successful conclusion.

It is understood that "Guoneng Boqiang 01" has "evolved" from a seemingly ordinary flat barge into an offshore wind installation platform with a "height" of more than 30 meters. Moreover, after the platform is equipped with ballast water in the working area, the maximum diving depth is 20 meters, which greatly meets the various needs of offshore operations.

Source: Dragon Boatman

5. Huaneng Dalian Zhuanghe Offshore Wind Farm Site IV1 project has entered the offshore construction stage

The typical construction of the steel pipe pile sinking of the Ⅳ1 (350MW) offshore wind farm site at the Zhuanghe Sea Area Offshore Wind Farm Site in Dalian City, Liaoning Province was successfully completed on the 2nd.

The Huaneng Dalian Zhuanghe Offshore Wind Farm Site IV1 project undertaken by China Railway Construction Port and Shipping Administration is located in the sea area east of Shicheng Island, Zhuanghe City, Dalian, Liaoning Province. It has a planned area of 55.8 square kilometers and is the largest single-capacity offshore wind power project in northern China. After completion, it will become China's highest latitude offshore wind farm. The installed capacity of the project is 350 MW, and the annual on-grid electricity is expected to reach 960 million kWh. Compared with the same level of thermal power, it is equivalent to saving 308,000 tons of standard coal and reducing pollutant emissions by 663,000 tons. The comprehensive economic and environmental benefits are very considerable. .

It is understood that the steel pipe pile as a typical construction this time is the basic structure of the No. 2 offshore wind turbine of the project. The diameter of the top of the steel pipe pile is 6.5 meters, the diameter of the bottom of the pile is 7.2 meters, the length of the pile is 78 meters, and the main structure uses 1,080 tons of steel. In the next step, Huaneng will install offshore wind turbines in the Ⅳ1 project of Dalian Zhuanghe offshore wind farm site, and plans to install 25 6.2 MW wind turbines and 26 7.5 MW wind turbines. After the project is fully completed, it will be connected to the grid for power generation at the end of 2021.

Source: China News Networkt

6. 700T jack-up offshore wind power work platform "Ganghangping 7" was delivered

Recently, Tianjin Zhongmu Technology Co., Ltd.'s 700T jack-up offshore wind power operation platform "Ganghangping 7" was successfully delivered to Wuhan Shipbuilding Haixi Heavy Machinery under China State Shipbuilding Corporation.

The platform has a deck area of 2,200 square meters, with four-column legs and a completely self-designed and manufactured hydraulic bolt type lifting system. The leg length is 90 meters, which can meet the construction requirements of the maximum operating water depth of 50 meters. The stern is equipped with two 1500KW full-rotation rudder blades, and the bow is equipped with two 500KW full-rotation rudder blades, both of which are variable frequency speed control. At the same time, it is equipped with a side thrust device to facilitate the moving and parking of the ship and DP1 dynamic positioning on the job site. The bow and starboard sides are respectively equipped with a 700T pile-around electric main crane with a maximum lifting height of 120m, and a 200T pile-around hydraulic auxiliary crane, which has the lifting capacity of domestic mainstream high-power wind turbine models.

After the "Ganghangping 7" is officially in service, it can be used with a 1200T full-rotation jack-up offshore platform-"Ganghangping 9", a 5000-ton wind power craft barge-"Ganghang Barge 5", the world's largest strike energy MHU3500S hydraulic shock The construction of a more complete professional equipment system for wind power construction with marine equipment such as hammers will effectively alleviate the tension on offshore wind power construction equipment and enhance the ability of large-scale offshore wind power operations.

Source: Wuhan Marine Machinery Haixi Heavy Machinery

7. All wind turbines in the world's largest floating wind farm are in place

Recently, with the installation of the fifth 9.525MW wind turbine mooring system of the Scottish "Kingcardine" project, the world's largest floating wind farm wind turbines have all been installed. The platform mooring system of the project was constructed by First Subsea, a well-known deepwater mooring company in the UK.

The Kincardine project was developed by the Spanish company Cobra Group. It is located in the North Sea of Scotland, 15 kilometers offshore, with a water depth of 60 to 80 meters. The offshore construction began in July 2018. The installed capacity of the project is 50MW. The project installs 6 wind turbines. In addition to the first finished product using V80-2MW (already installed), 5 MVOW V164-9.525MW large offshore wind turbines are also installed on site. The 9.525MW wind turbine is also currently floating offshore wind power. The largest unit used. The floating foundation adopts WindFloat semi-submersible foundation.

Source: European offshore wind power

8. Another tool for offshore wind power construction! 2400-ton full-slewing crane ship out of the dock

On July 6, the "Ocean 85" floating full-slewing crane vessel built by Shinhantong Shipbuilding Industry Co., Ltd. was successfully undocked, which will soon add another weapon to alleviate the shortage of offshore wind power construction equipment.

It is reported that the "Haiyang 85" is a large offshore crane with total length: 181.58m, profile width: 48m, profile depth: 13m, main engine power 8500KW, unlimited navigation area, and CCS classification society, with a displacement of 72,000 tons and the largest cabin. The capacity of the load adjustment is 13,500m3/h, and it can be used for lifting, piling or supporting engineering operations in the far sea.

The deck area of the ship is 5200, the load is 35t/㎡; the main deck is equipped with a 2400t@28m full-slewing crane, the main hook: 1#hook 2400t@28m+2#hook 1500t@28m, the lifting load during slewing is 2400t; double hook The fixed tail crane is 3000t×28m, the lifting height on the deck is 125m; the auxiliary hook: 1200t@42m, the lifting height is 130m on the deck. The ship is equipped with an 8-point anchoring system, and the bow is equipped with two 1500kW variable frequency bow thrusters.

Source: Longchuanfeng Power Grid

9. Global submarine cable giant opens new plant in China

Recently, the world's leading power cable supplier Nexans (Nexans) opened a new wind power cable manufacturing plant in Tianjin, China, to provide products and services for the domestic wind power industry.

This is the first cable manufacturing plant opened by Nexans in China. The factory has 3000 square meters of production and storage space, producing various wind power cable products and providing solutions. Each product will go through six stages of strict control from raw materials to finished products to ensure that all products meet the highest quality standards. The equipment produced by the plant includes M12 sensor cables, valve connectors, and customized solutions for the needs of wind power equipment manufacturers.

Source: Marine Equipment Network

10. British companies develop unmanned inspection vessels for offshore wind power

It is reported that the British survey company HydroSurv has developed two unmanned autonomous surface vessels, which can reduce the cost of marine survey and inspection by up to 60%.

The two ships will carry out necessary inspection and survey tasks in the offshore wind power field through a series of sensors and mission-oriented payloads. Among them, "REAV-40" is a multifunctional automatic surface vessel used for hydrological and environmental surveys. ORE Catapult provided technical support for the project, mainly collecting user needs and designing launch and recovery structures.

Source: Dongfang Wind Power Network