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. 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 high-strength and lightweight key components of the future development of the ventilation system technology is not only reflected in technology and process, but also pay attention to improving product quality from improving product quality, reducing costs, facilitating maintenance, energy saving and environmental protection. Explosion-proof high-pressure fan For the key components of the ventilator, the industry strengthened the development of new materials to make it more in line with the direction of environmental protection, energy saving, safety and stability. At present, the cast aluminum alloys used in the ventilator industry at home and abroad to make axial flow motor impellers are mostly aluminum-silicon and aluminum-silicon-copper. It cannot fully meet the requirements for the strength of materials under alternating load conditions such as frequent startup of fans and instantaneous change of direction. Industry leading companies have researched and developed advanced raw materials in response to the above requirements, and the research and development and application of blade materials have improved tensile strength, elongation, Lightweight development.
The technical level of the products of the aeration fan and part of the roots blower is close to or reaches the technical level of contemporary international similar products. Under the role of interdependence and mutual promotion, the nationalization of major national technical equipment and the comprehensive operation strength of the wind turbine industry have achieved coordinated development and continuous improvement. The implementation of national key technology and equipment localization policies has provided historical development opportunities for the wind turbine industry. After more than 20 years of unremitting efforts, it not only fundamentally reversed the passive situation of centrifugal compressors and axial flow compressors relying entirely on imports. At the same time, the wind turbine industry has gradually developed into a general equipment manufacturing industry in China, with production scale, technical strength, technological equipment, competitiveness, operational efficiency, and design and manufacturing technology in a leading position and close to the international advanced level in the industry.
The centrifugal fan is mainly composed of an impeller and a casing. The impeller of a small fan is directly mounted on the motor, and the large fan is connected to the motor through a coupling or a pulley. Centrifugal fans are generally single-sided air intake, using single-stage impellers; large flow can be double-sided air intake, using two back-to-back impellers, also known as double-suction centrifugal fans. The impeller is the main component of the fan. Its geometry, size, number of blades and manufacturing accuracy have a great impact on performance. The impeller must be corrected by static balance or dynamic balance to ensure the fan to rotate smoothly. According to the direction of the blade exit, the impeller is divided into three types: forward, radial and backward.
Address: Shuangmiao, Luoshe Town, Huishan District, Wuxi City (160 kilometers south of 312 National Road 200 meters ahead)