Production process and transmission mode of centrifugal fan of boiler
The boiler centrifugal fan is mainly composed of impeller, casing, coupling and shaft. Impeller is the main work component to generate wind pressure and transfer energy. The casing is mainly used to introduce gas and exhaust gas, at the same time, the partial kinetic energy of the gas is changed into pressure energy. Coupling is used to connect motor and fan, transfer torque, install and fix impeller on shaft, through coupling with motor.
Basic parameters of centrifugal Fan for Boiler
1. Boiler centrifugal fan can be made into two types of right rotation or left rotation, in use, you can face the fan from one end of the motor, and the impeller rotates clockwise as the right-hand fan, expressed as "right". Impeller counter-clockwise rotation called left-hand fan, expressed as "left".
2. The outlet position of the fan is expressed by the outlet angle of the housing. The "right" and "left" fan can be divided into six angles, namely, 0 °, 45 °, 90 °, 135 °, 180 °, 225 °, and all of them are salty 0 °, 45 °, 90 °, 135 °, 180 °, 225 °.
3. The drive mode of fan is d-type, and the motor and fan are connected by elastic coupling.
The shell of boiler centrifugal fan is a volute formed by ordinary steel plate welding. The case of the fan is made up of a whole structure. For the induced draft fan, there is a clean ash door on the worm plate, at the same time, it is thickened properly to prevent the soot wear and prolong its service life.www.jnblower.com