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Roll crusher structure and installation method
      Thus, the offshore wind power stand-alone capacity larger the wind farm the Jian'an maintenance capital relatively lower.Total mass jury is still out from a worldwide point of view, very little control of offshore wind turbine manufacturing technology suppliers, technical maintenance, tough, and is still in the stage of the edge running side improved.Domestic and offshore wind turbine R & D has just started, of course, with the help of foreign technical experience of the design units, the starting point is not low, but still a lack of practical commercial operation of the test unit in the solid nature, ease of maintenance also needs a question mark.Ordinary said, the solid nature of the fan device is the key to the success of offshore wind power project due to the offshore wind turbine shipping interest is much higher than the land-based, sea-fan unit problems will move to the increase in operating costs of the project, to increase the financial risk.It is understood that the foreign offshore 5MW fan ordinary operating on shore monitoring more than three years, and stop the non-canonical displacement of the various parameters of the fan under the harsh environment at sea mimic simulation, competence gradually sure-volume consumer.Differences between European countries stressed that offshore wind turbines in the lifting before, at least to stop the test on land.Domestic land-based machine can be applied to rates of less than 90 percent of offshore wind power due to the greater technical difficulty, the applicable rate will be lower.Offshore wind power to establish demonstration projects should be phased operation beginning should range from offshore to carry out.Shanghai Electric vice president Liu Qi said.
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   Typhoon is another important fight facing the sea fans.Stability ocean east coast, as long as the Donghai Bridge offshore wind power projects, and this region is located Typhoon many areas. 2006  alicey599 Typhoon Saomai landing Cangnan County, after testing, the maximum wind speed of 78.1 / s, the result is The Cangnan wind farm subjected to eradication of strike, 20 of the 28 units have been different levels of destruction, the entire wind farm almost scrapped.Huayi Wind Energy vice president Wu Yundong thought, due to extreme wind velocity of the offshore wind power in China still can not be sure, if extreme wind velocity progress, then the weight of the wind turbine and capital will be greatly increased.This problem, the long-term disturb the offshore wind power development in China.According to the Shanghai Science and IT seminars by engineers LUO introductions, the world's first large offshore wind farm in Denmark Horn Rev operation from the beginning of February 2003, less than 1 year, 80 wind turbines of the wind farm total absence from work to maintain approximately 75,000, per day for each fan to maintain about 2 times.The main cause of the problems is salt water in the air into the generators and transformers, the status of past land-based fan never encountered thus the industry are concerned that did not stop plenty of commissioning under the premise of mohair on a wide range of fan manufacturing projects, the question of interest due to the future quality of offshore wind turbine or wind farm operation, these items may be subject to the blackmail of overcapacity.
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