The working principle of the fan is basically the same as that of the turbo compressor, but because the gas flow rate is low and the pressure does not change much, it is generally not necessary to consider the change of the specific volume of the gas, that is, the gas is treated as an incompressible fluid. The relationship between fans and fans: Fans are the abbreviations for gas compression and gas transportation machinery in China. Generally speaking, fans include fans, blowers, compressors, and roots blowers, but do not include volumetric blowers such as piston compressors and compressor. Ventilator is a product type of fan, but people usually call the ventilator simply as a fan, which is another name for a fan. Fan is a general term for machinery for exhausting gas. According to its exhaust pressure, it is divided into fan, blower and turbine compressor. The so-called small and medium-sized enterprises in the fan industry mainly refer to enterprises that produce various types of fan products.
The characteristics of fan products are large volume and wide area, the structure of the product is not very complicated, and the manufacturing accuracy requirements are not very high, but it accounts for about 96% of the total number of fans in the fan industry. To this end, establishing the development direction of SMEs in the fan industry and promoting the rapid development of SMEs in the fan industry are of practical significance and involve the long-term interests of the fan industry. Domestic brands should improve appearance quality At present, the world economy has entered a period of globalization, the trend of global economic integration is becoming more and more obvious, the economies of countries will become more interdependent, international economic cooperation is getting closer and closer, and the international market is at a stage of substantial crossover and integration. At the same time, the pace of global industrial structure adjustment and production internationalization is accelerating. Significant progress has been made in the scale and depth of international division of labor. Industrial developed countries continue to shift industrial production to capital-intensive and technology-intensive industries, and labor-intensive products are developing. China and regions.
The glass fiber reinforced plastic centrifuge uses the characteristics of the machine to speed up in the centrifugal state into the mechanical equipment, so as to develop and design a ventilation facility, which brings great convenience to people's production and life. As we all know, when working under the mine, because the air in the mine does not circulate, its work efficiency is low, so accident information about workers collapsed due to lack of oxygen often appears in the ⎝⎛炸金花⎞⎠, and the appearance of FRP centrifuges is very good. Solved this problem, it has strong ventilation ability, can speed up the air circulation under the mine, thus creating a comfortable living environment for workers, which has been loved by many workers and enterprises. Fan products are labor-intensive or low-cost products, and have a price advantage compared to foreign products. After joining the WTO, it will be conducive to expanding exports. After the domestic market is opened, it will basically not pose a threat to China's small and medium-sized wind turbine enterprises.
At present, many small and medium-sized enterprises in the ventilator industry already use computer graphics, but this is not enough. They cannot always stay on the simple task of using computer graphics. They must use CAD, CAPP and other computer-aided design and product performance tests. And the application of computer data acquisition system and the development of the fan product series spectrum. In this regard, you can learn from large fan manufacturers such as Shenyang Blower (Group) Co., Ltd. In terms of fan software research, several domestic research institutions and universities have developed several software suitable for the characteristics of the fan industry, such as computer fan selection system, fan strength calculation, axial flow fan variant design, small blower design software, etc. . Product structure adjustment: Most of the fans produced by small and medium-sized enterprises are popular universal products. Without their unique leading products, they will lose their competitiveness.
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