We have also talked a lot about the common knowledge of axial fans. Then let us discuss the principle of selecting axial devotees. Please see the detailed synopsis below: 1 Before selecting some sort of fan, you should know your production and product quality status of domestic ventilators, such as the species of ventilator, the standard and the special using various products, and understand the current domestic fan market. 2 In line with the physical and chemical properties with the gas transported by the ventilator, select the ventilator for different utilizes. Such as the selection regarding explosion-proof ventilator with explosive plus flammable gas, determine the required explosion-proof level requirements for your fan; dust or pulverized coal ventilator must be selected for dust discharge or perhaps transport of pulverized coal; anti-corrosion ventilation should be selected for transport of corrosive unwanted gas Machine, determine whether the anti-corrosion material is made of FRP or PP; in high temperature applications, high temperature gas really should be selected for high temperature fuel, and the ambient temperature along with the temperature of the transport gas should be known. 3 When there are more than two types of ventilators readily available selection on the ventilator collection function chart, priority should be provided to selecting one with larger power, smaller machine number and also larger conditioning scale. Of program, it can be compared with regard to cost performance. Weigh the pros and cons and decide. 4 If the diameter from the selected fan impeller is much larger compared to diameter of the original buff, in order to utilize the original motor shaft, bearings and bearings, it is crucial to start the motor, the strength in the original components of the fan and the criticality of the shaft. The rate is calculated. 5 When picking a centrifugal fan, when the motor power used is not as much as or equal to 75 kW, the valve for starting only is probably not installed. When selecting a centrifugal boiler induced draft fan for high-temperature flue energy or air, a start-up valve should be provided to prevent overload during cold operation. 6 For air flow systems with noise requirements, the ventilator with high strength and low impeller circumferential speed need to be selected first, and it really should be operated at *** power place; it should also be depending on the noise and vibration transmission method generated by ventilation system. Sound and vibration reduction measures. For the vibration reduction measures of the ventilator and the motor, the vibration damping base is usually generally selected, and different damping devices are selected based on the fan device method. SIX When selecting a fan, try and prevent the fan from becoming connected in parallel or within series. When it is unpreventable, the axial fan should select exactly the same type of fan with exactly the same function. When series connection is selected, there must be some pipe joint between the class ventilator along with the second stage ventilator.
