With the continuous development of science and technology, people's requirements for the use of Industrial Fans are getting higher and higher. As far as the current development trend of foreign Industrial Fans technology is concerned, Industrial Fans will continue to increase in capacity, high efficiency, high speed, miniaturization and low cost. The development of noise is in this direction, and Industrial Fans are developing in this direction.
Industrial Fans capacity continues to increase. The increasing scale of various industrial devices requires that the capacity of various types of Industrial Fans is also increasing. Large-scale Industrial Fans will be popular in the market in the next few years.
Low noise. The noise of Industrial Fans is one of the main sources of noise pollution in industrial production. The large-scale and high-speed Industrial Fans have made the noise problem more prominent. For low-frequency noise, Industrial Fans mainly reduce the body noise by improving the structural design of the Industrial Fans. If the requirements are not met, measures such as adding a silencer can be taken.
The shape of
Industrial Ceiling Fan blades also has a great impact on the efficiency of Industrial Ceiling Fan. The shape of the Industrial Ceiling Fan blades directly affects the vortex intensity near the blades, thereby affecting the efficiency of the Industrial Ceiling Fan. Therefore, improving the shape of the blades to have better streamlines and appropriate bending angles will not only help reduce eddy current noise, but also greatly improve the efficiency of Industrial Ceiling Fan.
Tests have shown that the blade material of Industrial Ceiling Fan also has a certain impact on the noise. For example, cast aluminum blades are less noisy than stamped steel blades; nylon blades are less noisy than metal blades. Generally speaking, the greater the material's loss coefficient, the smaller its noise.
Increasing the number of blades of the Industrial Ceiling Fan can increase the air volume of the Industrial Ceiling Fan while maintaining the same speed. Or on the premise of obtaining the same air volume, the speed of the Industrial Ceiling Fan can be reduced, thereby reducing the noise of the Industrial Ceiling Fan. However, when the number of blades is above 6, increasing the number of blades will only result in a limited increase in air volume, and will often have a negative effect on noise reduction characteristics.
When the low-speed wide-blade Industrial Ceiling Fan and the high-speed narrow-blade Industrial Ceiling Fan have the same air volume, the noise sound pressure level generated by the former is 4dB(A) lower than that of the latter, and the power consumption is reduced by 27%. Narrow the gap between the Industrial Ceiling Fan and the wind guard to prevent air flow turbulence and reduce the noise of the Industrial Ceiling Fan. Tests have shown that when the gap is zero, the air volume increases by 27%, while the noise decreases by 3dB(A). If the rotation speed is reduced to return the air volume to the original level, the noise can decrease by 2dB(A).
