The development trend and direction of centrifugal fans in the future are analyzed as follows:
Centrifugal fans are mainly used for ventilation and ventilation in various fields of national economy, such as metallurgy, petrochemistry, electricity, urban rail transit, textiles and ships. In addition to the traditional application fields, there will still be great prospects in more than 20 potential market areas, such as the comprehensive utilization of coal gangue, the new dry process clinker, the energy saving of the metallurgical industry and the comprehensive utilization of resources.
With the intensification of competition in the manufacturing industry of centrifugal fans, merger integration and capital operation among large centrifugal fan manufacturing enterprises are becoming more and more frequent. The domestic excellent centrifugal fan manufacturing enterprises pay more attention to the research on the industry market, especially the in-depth study of the industrial development environment and the product purchasers. Because of this, a large number of domestic excellent centrifugal fan brands have risen rapidly and become the leaders of centrifugal fan manufacturing industry.
Centrifugal blower is China's habit of abbreviation for gas compression and gas conveying machinery. Usually, fans include fans, blowers, and wind turbines. Gas compression and gas conveying machinery is a machine that converts rotating mechanical energy into gas pressure energy and kinetic energy and delivers gas.
The main components of the centrifugal fan are impeller, casing, air inlet, bracket, motor, belt pulley, coupling, muffler, transmission part (bearing) and so on.
The unpowered ventilator is a heat convection caused by the natural wind and the temperature difference between the indoor and outdoor, and promotes the rotation of the turbine to discharge the indoor non fresh hot air by using the centrifugal force and the negative pressure effect.
Centrifugal fan relates to the energy consumption of transmission and distribution system, which is a key part of building energy efficiency. According to the national air conditioning equipment quality supervision and Inspection Center for many years, the fan test shows that many fans have problems in the rated conditions, so it is necessary to produce and manufacture the fans in strict accordance with the requirements of the product standards.
The vibration of the bearing position is very small when the centrifugal fan has just started working, but with the lengthening of the running time, the dust in the fan will be unevenly attached to the impeller, which gradually destroys the dynamic balance of the fan and increases the vibration of the bearing gradually. Once the vibration reaches the maximum 11mm/s of the fan, the maximum allowable value is expressed by the amplitude value. The fan must be shut down to repair (remove dust accumulation and redo dynamic balancing). Because this is already very dangerous, users must not be forced to use. When the vibration of the fan is close to the dangerous value, there will be an alarm for the vibration meter.
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