Noise Analysis: six proportional to the total noise level of the fan blade speed square. According to the analysis, the fan noise source is basically a dipole nature. Further to be launched, the noise is due to the blades on the fan effect on air flow through the veins caused power. Fans may think there are two discrete frequency noise source, a field with the pressure caused by the movement of the rotor blade propeller noise, and the other is powered leaf veins aerodynamic noise caused by interference. Wind maneuver, quiet distance between the blades is an important factor interference noise. Noise Analysis: When moving, the distance between the vanes increases axial fans, faster time to reduce the impact of the bit stream interference effects than the speed of change in the wake of the explosion-proof axial flow fan blades sound barrier's role as also with the distance increases. Thus, at least three parameters that affect the size of the interference noise: blade shape velocity waveform (ie blade loading), leaf blades radiating surface distance between the columns and as a sound source. Very small pitch may have two acoustic impact. If the vanes on the rotor blades interference field force established to make the rotor blades into a pulsating sound source, while the leaves are still sound barrier. Square wall axial fan price | Chuzhou axial fans | Chenyu air conditioning services provided by Wu Cheng Chen Yu Air Conditioning Equipment Co.. Wu Cheng Chen Yu Air Conditioning Equipment Co., Ltd. (www.wccykt.com) strong, credible, in Dezhou fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chenyu air conditioning and you hand into the brilliant, for a better future!