Run Check: When running axial fan axial fans, electric motors of various types of axial fan is mainly a collection of monitors (2) mark the square wall axial fan flow, the load current is not only fans, but also some unusual changes forecast. In addition, to always check the vibration motor and fan are normal and the presence of friction, abnormal noise. Parallel operation of the fan should be careful to check whether the fan is running in a surge condition. In normal operation, such as the case of the following environments should that stop detection: 1, axial fans have a strong vibration or sound grazing; 2, motor current corrosion axial fan suddenly rise and exceed the rated motor current; 3, the motor bearing temperature sharp rise. Noise Analysis: six proportional to the total noise level of the fan blade speed square. According to the analysis of mobile axial fans, 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. Square wall axial fans, Jiaozhou axial fans, air conditioning service provided by Chen Yu Chen Yu Wu City Air Conditioning Equipment Co., Ltd .. 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!