Centrifugal Fan For Ventilation

Centrifugal Fan For Ventilation

The main purpose of this centrifugal fan for ventilation is to discharge compounds containing impurities such as dust, wood chips, fine fibers and the like. It is also suitable for general ventilation where performance and proper conditions are similar. If a hard object occurs, add a dust removal device in front of the fan air inlet.
Product description

Product introduction:

The main purpose of this centrifugal fan for ventilation is to discharge compounds containing impurities such as dust, wood chips, fine fibers and the like. It is also suitable for general ventilation where performance and proper conditions are similar. If a hard object occurs, add a dust removal device in front of the fan air inlet.

Product features:

1. When the centrifugal fan for ventilation is made in single suction type, the machine number is usually designed to be No3.6C, No4.5C and No5.5C. If the user needs another machine number or other type, please contact us.

There are usually two types of fans, clockwise and counterclockwise. The position of the fan outlet is represented by the angle of the casing air outlet. The adjustment range is between 0° and 225°. The left and right fans can be divided into six angles: 0°, 45°, 90°, 135° and 180°. ° or 225°.

2. The centrifugal fan for ventilation is mainly composed of impeller, air inlet, casing, transmission, motor and bracket. The impeller is welded between the curved wheel cover and the flat back plate by 10 inclined airfoil blades, calibrated by static and dynamic balance, and tested by overspeed operation to make it stable and reliable.

3. The outer casing is welded by ordinary steel plates. The impeller is mounted and removed on one side of the housing. The air inlet is made of a converging, streamlined monolithic structure that is mounted on the side of the fan. The transmission consists of a main shaft, a bearing housing, a rolling bearing, and a pulley. The main shaft is made of high-quality steel, the bearing housing adopts the integral structure, and the rolling bearing is made of calcium. The bracket is made of steel and is used to support the drive and connect the fan to the foundation.

Performance and selection:

The performance of the fan is usually expressed by parameters such as fan flow, overall pressure, spindle speed, shaft power, efficiency, etc. There is a certain internal relationship between the parameters. Performance in the performance table refers to performance under standard conditions. When the service conditions do not meet the standard conditions, the performance under the service conditions must be converted to the performance under the standard conditions, and then selected according to the performance table.

Motor Power Reserve Factor

Shaft power
  Kw

>0.5

>0.5~1

>1~2

>2~5

>5

K value

1.5

1.4

1.3

1.2

1.15

Performance parameter relation

Conversion formula in case of change of density ρ and rotation speed n

Conversion formula in case of change of rotation speed n, atmospheric pressure Pa and air temperature t


11.jpg 
 

22.jpg  
 

Wherein:

q —    Flow            (m3/h)             p —     whole pressure(Pa)
P —    Shaft Power    (kW)            η —    Whole pressure efficiency(%)
ρ —    Density       (kg/m3)            n —    Rotation Speed(r/min)
t —    Temperature   (℃)                Pa —   Atmospheric Pressure(Pa)
Footnote mark "2" stands for known performance parameters and Footnote mark "1" stands for performance parameters to be solved.

Supply scope of complete set
1.   1 set of fan.    2.   1 set of motor

Hot Tags: centrifugal fan for ventilation, China, factory, manufacturers, price, for sale
Related Products
Feedback

Copyright © Jiangsu Shuangju Fans Co.,Ltd All Rights Reserved.Tel: +86-515-88669968