Simple description:
Ordinary axial fan can be used in general factories, warehouses, offices, residential and other places of ventilation and ventilation, but also for cooler (air cooler), evaporator, condenser, spray drop, and so on, there are mine axial fan, anti-corrosion, explosion-proof axial fan using anti-corrosion materials and explosion-proof measures, and matching explosion-proof motor, can be used
, volatile, corrosive gases, It is required that the gas transported by the axial fan should be free of significant dust, no viscosity and fiber material, and the motor directly connected temperature does not exceed 40 ℃, and the belt drive temperature does not exceed 60 ℃. The amount of dust transmitted by the gas shall not exceed 150mg/m3, and the axial fan is mainly composed of impeller, chassis, motor and other parts, and the bracket is connected with the shell air cylinder by using steel.
Among them, the impeller and chassis of anticorrosive axial fan are made of FRP, and other types of axial fan are generally made of steel plate.
How it works:
When the impeller rotates, the gas enters the impeller from the inlet shaft and is pushed by the blades on the impeller to increase the energy of the gas, which then flows into the guide leaf.
The guide leaves the deflection airflow into axial flow, and the gas is introduced into the diffuser, which further converts the gas kinetic energy into the pressure energy, and finally introduces the working pipeline. Axial Flow fan blades work in a similar way to the aircraft's wings.
However, the latter is to use the lift upward on the wing and support the weight of the aircraft, while the axial flow fan is fixed and the air moves. The cross section of the axial flow fan is generally the wing profile. The blade can be fixed in position or rotated around its longitudinal axis. The angle of the blade to the airflow or the spacing of the blades can be adjustable or adjustable. Changing the angle or spacing of blades is one of the main advantages of axial flow fans.
Small blade spacing angles produce lower flow rates, while increasing spacing can result in higher flow rates. The advanced axial flow fan can change the blade spacing while the fan is running (which is quite similar to the helicopter rotor), thus changing the flow rate accordingly.
This is called a moving leaf adjustable (VP) axial flow fan.
Use:
Axial fan is also called local ventilator, is commonly used in industrial and mining enterprises a fan, but different from the general fan its motor and wind leaves are in a cylinder, the shape is a cylindrical shape, used for local ventilation, easy installation, ventilation and ventilation effect is obvious, safe, can be reception to the designated area.
