In recent years, China's fan manufacturing enterprises and international leading enterprises to carry out joint design research and development, to attract foreign fans in the field of manufacturing professionals, and gradually build their own research and development capabilities. Source of technology With the Danish RISOE National Laboratory for the cultivation of a large number of technical resources, Vestas quickly formed its own technical capacity, and rely on strong technical research and product development capabilities to occupy the market.

Compared with Vestas, China's domestic enterprise technology sources are divided into the following four categories: the first category, the direct purchase of fan design and mature technology. The second category, with foreign wind turbine manufacturing enterprises or foreign R & D institutions jointly designed. The third category, the establishment of enterprises, the introduction of foreign-funded enterprises mature models, the domestic production and sales of the whole machine. The fourth category, with the domestic research institutions in-depth cooperation, the development of fan models, and gradually formed its own research and development capabilities.

Comparison of the results Based on the above comparative analysis, domestic and foreign manufacturers of wind power competition advantages and disadvantages. China's fan manufacturing industry has not yet reached the stage of maturity, the competitiveness of domestic fan manufacturing enterprises than the leading foreign companies more obvious gap. In 2010, China's fan manufacturing market overcapacity, market competition environment deterioration, this paper through comparative analysis of the method, research on domestic and foreign fan manufacturing enterprises competition. The results show that foreign wind turbine manufacturing enterprises have advantages in fan performance and reliability, international certification, supply of key components and core technology, and our local fan manufacturing enterprises have advantages in fan price, facility layout and market expansion. In order to form a lasting competitiveness, domestic and foreign fan manufacturing enterprises need to play advantage, and gradually make up for their own shortcomings, to adapt to market competition environment.

Keywords: centrifugal fan