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 the introduction of a square axial fans, the noise is due to the effect on the blades on the fan air flow through the veins caused power. Fans can be considered discrete frequency noise source has two kitchens dedicated axial fan, a field with the pressure caused by the movement of the rotor blade propeller noise axial fan, the other is powered leaf veins aerodynamic noise caused by interference. Wind maneuver, quiet distance between the blades is an important factor interference noise. Our company is a well-known fan manufacturer, the company for its reliable quality, reasonable and fair price, professional and thoughtful service to win the majority of the high recognition. Following Xiaobian to introduce you to check the fan device:! (1) two times the wind angle maneuver II- may be inconsistent. (2) a two-stage turbine rotor blade angle around itself may be inconsistent. (3) Each stage rotor blade fan blade angle in each piece may be inconsistent (4) due to fouling caused by the blades. Our company's product quality worthy of trust, we are your most trusted friends. Your satisfaction is our relentless pursuit. t35 11 _ Chenyu axial fans and air conditioning (certified) _ Jixian axial fan provided by Wu Cheng Chen Yu Air Conditioning Equipment Co., Ltd. Wu Cheng Chen Yu Air Conditioning Equipment Co., Ltd. (www.wccykt.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Chen Yu-conditioning in leadership with the staff warmly welcome all inquiries negotiations to create Chenyu conditioning a better future.