In recent years, I am fan market was on fire, in the iron fan, anti-corrosion fan, fan the fire until the increasing demand for various products, while also developing new products, put forward new demands. The industry believes that TV towers, for the medium and small fan, user demand is the largest and most manufacturers also. Overall, although the demand for these fans in the "Eleventh Five-Year" period there will be more substantial growth, but is still oversupply; for technology-intensive centrifugal blower, Roots blower and turbine compression machine is concerned, will be moving in the direction of large-scale development; fan for a particular purpose, such as anti-corrosion fan, heat fan, corrosion-resistant fans and explosion-proof fan and so on, these fans along with the metallurgical industry is mainly energy-saving and environmental protection industry development to develop, market demand for the next few years will be more focused on the sintering and sewage treatment aeration blowers blower area.

　　In addition, the "Eleventh Five-Year" period, the thermal power plant desulfurization fans, metro fan, the tunnel exhaust fans and fire and other special purpose fan blower will increase the demand.

The gap can not be ignored

　　On the current situation, the domestic fan with foreign advanced level manufacturing level there are still large gaps, such as in turbine compressor (including the centrifugal compressor, axial flow compressors and axial - centrifugal compressor compound) on on the existence of gaps in the following three aspects:

　　First, these products have been carried out although the introduction of technology, such as Shenyang Blower (Group) Co., Ltd. from the Italian company has introduced a new Pignone MCL, BCL, and PCL series of centrifugal compressor design and manufacturing technology from Japan, Hitachi introduced the DH-type Compressor Technology, Demag from Germany introduced the VK-type assembly-type compressor technology; Shaanxi Blower (Group) Co., Ltd. from the Sulzer company introduced axial compressor technology. Domestic turbine compressor technology has played a catalytic role. However, for such product development, research efforts is not enough (production enterprises engaged in production and neglect of scientific research; scientific research institutes and tertiary institutions, there is no production base), resulting in some of the performance of product variety parameters and there is a certain gap between the needs of users, and not fully satisfied users.

　　Second, some species although little difference between performance parameters, but the producers did not have performance or performance of small, difficult to obtain the trust of users, often in the bid be eliminated. For example, the West-East natural gas pipeline transmission with centrifugal compressor is a good example.

　　Third, an integrated fan factory production capacity is not matching the production cycle is long (some users do not sign a contract in accordance with international practice, imposed on factories, delivery periods are too short), can not meet delivery deadlines, pre-service can not make customer satisfaction .

　　For the TV towers, mid-, small fan, the kind of product structure and manufacturing process is relatively simple and cost low. Therefore, the user to price first place. In addition to a very special use of these products and complete sets of imported equipment and supporting facilities, the remaining volume of imports very little fan-made largely to meet the needs of national economic departments.

　　Nevertheless, the gap between such products are also many commonalities exist. First, the product structure is not quite reasonable for users, not simple, maintenance, maintenance is not convenient enough; followed by the surface or the appearance of poor quality, whether it is welding, sheet metal, or paint, most enterprises appearance quality of products covering a Less than export demand. Therefore, these products have to enter the international market, we must completely change the appearance of the poor quality of the status quo.

　　In view of this, the domestic fan manufacturers is imperative to shorten the gap with foreign countries, so that international competition in the market in order to Li Zhu feet.