Noise Analysis: When this distance is small, the bit stream and trail changes will have an impact dz-11-type axial fan blades may also be used as sound barriers, and strengthen the blade near the blade lift pulsation generated column on sound radiation. This effect depends on the lift pulsation-related acoustic wavelength as compared with the size of the blade barrier. Within this ratio is more than 2 frequency range, due to the impact caused by changes in the intensity of radiation is the most significant. Therefore axial fan, when the upstream and downstream of the radiation noise of the blade has the same number of leaves, and the leaves of the two columns of each blade and a rotor blade simultaneously met in both sides of the source of the low-noise constitutes a sound barrier wall when the axial flow fan, this effect will be stronger. This series of fans for conveying non-flammable non-corrosive gases no significant dust, ambient temperature must not exceed 60 ℃, widely used in general factories, warehouses, offices, residential ventilation and other occasions. Corrosion axial fan (FT35-11 type) is the use of anti-corrosion materials coated with epoxy paint from the processing of T35-11-type fan, the motor uses special anti-corrosion motor, for the transport of corrosive gases. ytbz square wall axial fans, axial fans, Shijingshan District, Chen Yu-conditioned factory outlets provided by Wu Cheng Chen-yu air-conditioning Limited. 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!