4-79 4-2X 79 Series Centrifugal Fan
The 4-79 centrifugal fan can be used for indoor ventilation in general factories and large buildings. It can be used for both gas input and gas output. The type of gas transported is air or other gases that do not ignite or explode spontaneously, have no c winding, are harmless to human body, and are non corrosive to steel materials.
There shall be no viscous substances in the gas, and the dust and hard particles contained shall not be more than 150mg/m, and the gas temperature shall not exceed 80C. Other similar properties can also be used.
The fan can be made into two types: clockwise rotation or counterclockwise rotation. Facing from one end of the motor, the impeller rotates clockwise
The rotator is called a clockwise cyclone, which is represented by "clockwise", and the opposite is called a counter cyclone, which is represented by "counterclockwise".
The outlet position of the fan is indicated by the outlet angle of the casing. 4-79 fans Na3A~6A are
As a type, the user shall install it to the required position according to the requirements. The adjustment range of the air outlet position is 0 °~225 °, and the interval is 45 °; The adjustment range of Na7C~8C air outlet position is 0 °~180 °, and the interval is 22.5 °; Na10E~20E single air inlet and double air inlet and outlet positions are made into three fixed positions: 0 ", 90" and 180 °, which cannot be adjusted. If you want non-standard models such as special machine number and special outlet angle, our factory can also design and manufacture them for you, but you need to specify them in detail when ordering.
N3A~6A in 4-79 fan mainly consists of casing, impeller, air inlet and motor Na7C~20E
In addition to the above parts, there is also a transmission part.
Impeller I is composed of backward inclined arc thin plate blade, curved front plate and flat rear plate, all made of steel plate
After static and dynamic balance correction, the air performance is good, the efficiency is high, the noise is low, and the operation is stable. Na3 and 3.5 are composed of 12 blades, Ne4 and 4.5 are composed of 14 blades, and those above Na5 are composed of 16 time slices.
The casing I is made into two different types. The N3~12 casing is made as a whole and cannot be disassembled; The N14~20 casing is made into two open type, divided into two halves along the horizontal plane of the split, and connected by bolts.
Once the air inlet is made into a whole, it is installed on one side of the fan. The section parallel to the axial direction is in a curve shape, which can enable the gas to enter the impeller smoothly with less loss.
Drive 1 consists of main shaft, bearing box, rolling bearing and pulley.
