Stainless steel centrifugal fan working principle
The author:AdminPopularity:324release
time:2017-08-09
Fiberglass Centrifugal Fan As the name suggests is a shell with stainless steel anti-corrosion material manufacturing centrifugal fan, the working principle is when the motor rotation to drive the fan wheel rotation, the impeller between the leaves of the gas also followed the rotation, and in the role of centrifugal force thrown out of these Gas, gas flow rate increases, so that the gas in the flow of kinetic energy can be converted to static pressure, and then with the pressurization of the fluid, so that static pressure can be converted to speed, through the exhaust port of gas, and in the middle of the impeller A certain negative pressure, due to the entrance was negative pressure, so that the external gas under the action of atmospheric pressure immediately into the continuous rotation of the impeller in the continuous discharge and fill the gas, so as to achieve the purpose of continuous blast. The same power, the wind pressure and air flow in general contrary. The same power, the wind pressure is high, the air volume will be relatively low, and the air volume, wind pressure will be lower, so as to make full use of the motor efficiency.
With the use of different fans, the requirements are not the same, such as public buildings used in the fan is generally used for ventilation, the most important requirement is the low noise, multi-wing centrifugal fan with this feature; and require large flow Of the cabinet centrifugal fan is usually double suction type; for some high-pressure centrifugal fan, lower than the speed, the relative proportion of its leakage is generally larger.
Cabinet centrifugal fan design usually given the conditions are: volumetric flow, full pressure, working medium and its density (or working medium temperature), and sometimes structural requirements and special requirements. Most of the requirements for the design of the centrifugal fan are: to meet the required flow and pressure conditions should be in the vicinity of the highest efficiency point; the highest efficiency value should be as large as possible, the efficiency curve is flat; pressure curve stable working range to wide; Simple structure, good process; materials and accessories to choose convenient; have sufficient strength, stiffness, safe and reliable work; stable operation, low noise; good regulation, work adaptability; fan size as small as possible, light weight; Easy maintenance, easy disassembly and transportation.