SOME COMMON TYPES OF DAMAGES OF INDUSTRIAL FANS AND HOW TO FIX THEM

SOME COMMON TYPES OF DAMAGES OF INDUSTRIAL FANS AND HOW TO FIX THEM

Proper fan operation will increase the fan life time to allow good use and reduce noise. At the same time, the rapid detection of shortcomings to propose timely remedies is essential for fans. In the article let us list together Greentec

SOME COMMON TYPES OF DAMAGES OF INDUSTRIAL FANS AND REMEDIES

The fan did not reach the specified capacity

Reason :

  • There is a large gap between the reel and inlet
  • The reels of the fans spin in the opposite direction

How to fix :

  • Place the inlet tube for a clearance not larger than 0.01 diameter reel
  • Phase change electric motor

The fan does not create the required pressure

Reason :

  • The system resistance calculations are incorrect
  • Incorrect fan selection
  • The system resistance is higher than designed
  • The tube is not tight
  • Pipes are clogged with foreign objects and trash
  • Fan rotation is not sufficient

How to fix :

  • Check the sizes of pipes and system resistance
  • Increase the number of rotation of the fan
  • Check to see if the duct section is dirty. Specify the number and type of curved sections and then check how they are placed
  • Tighten flange bolt and replace gasket
  • Duct cleaning – The place where dirt is turned off is determined by noise
  • Increase the number of fan revolutions when driving the belt by changing the gear ratio.

Strong vibration fan

Reason :

  • Unbalanced reel
  • Incorrect bearing mounting connections
  • The engine attached to the base is unstable

How to fix :

  • Check and balance the reels
  • Check the fitting of ball bearing joints
  • Tighten the platform bolts or strengthen the mounting

Fan has noise when working

Reason :

  • Low performance fan
  • There are no flexible connections between the fan and the pipes on the discharge and suction sides
  • Fans placed on a metal platform without shock absorbing objects
  • Install weak coins and valves

How to fix :

  • Replace fan whose efficiency is not lower than 0.5
  • Set the elastic fitting
  • Add the elastic cushion
  • How to install the coin-pap and valve so that when it works, it will not be shaken

Fan motor and bearing is too hot when working

Reason :

  • Motor overloaded
  • The motor bearing is dirty, there is no oil in the bearing
  • The bearing is broken
  • Transmission belts separate from fan belt wheels or slip
  • The motor shaft and the fan are not parallel
  • The base bolts of the motor and the support bracket are weak, thus distorting the correct position of the drive

How to fix :

  • Replace the engine with a more powerful one, if possible close the screen
  • Wash the bearing and apply new oil
  • Check and replace broken ones
  • Check the parallelism and correct
  • Put the engine that pulls the platform bolts at the base and the motor
  • Move the engine on the steel rack, change the belt transmission

When industrial fans suffer from one of the errors above, you should first check and handle the simple operations first. If you can handle it on the spot, you will not have to spend money, time and money to repair and still ensure not affecting business operations.