Guizhou mining local ventilation fan
Introduction to the environmentally friendly FBD low-noise axial flow local ventilation fan
Schematic diagram of the environmentally friendly low-noise local ventilation fan
The environmentally friendly FBD low-noise axial flow local ventilation fan is an ultra-low noise, environmentally friendly ventilation fan developed by our company. This series of fans adopts multiple noise reduction measures. Based on the aerodynamic principles of the fan and the principles of noise generation and propagation, it adds a streamlined air intake silencer and an inlet/outlet composite silencer. The fan unit is structurally optimized, and high-quality sound-absorbing materials are added to better absorb mid-to-low frequency noise and effectively isolate high-frequency noise, eliminating and attenuating the overall noise of the fan; reducing the noise of various frequencies of the fan to below 85 to 80 decibels, protecting the physical and mental health of on-site personnel, improving the working environment in mines, and achieving environmentally friendly air supply.
Patent No.: ZL 2020 2 1223212.3 "A low-noise counter-rotating axial flow ventilation fan".
Noise Reduction Principle:
The noise reduction advantage of the fan we designed adopts a comprehensive noise reduction method; starting from the fan's performance, structure, and materials used; first ensuring reliable operation and air volume, then carrying out scientific noise reduction; using our company's unique noise reduction technology, integrating various sound-absorbing materials and sound-absorbing processes into the equipment, the noise reduction measures are based on the principles of noise generation and propagation, changing the air intake direction, optimizing the structural design, better absorbing mid-to-low frequency noise and effectively isolating high-frequency noise, eliminating and attenuating the overall noise of the fan; Patent No.: ZL 2020 2 1223212.3.
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