Dangers of fan vibration

Mechanical vibrations are one of the most important factors affecting the efficiency of the ventilator and its safety, and therefore their amount should always be controlled during fan operation.

International standards ISO1940 / 1 and ISO2372 indicate the allowable vibration limits in rotating devices, and especially the international standard ISO1940 / 1 has stated significant points in the field of criteria for determining the allowable vibration limits in fans. The products of Kavosh Zist Shayan Sanat Company are also produced based on G6.3 class of this standard.

Note that neglecting vibration control can lead to the following hazards:

• Creating deep cracks and crevices that lead to failure of the entire device.
• It causes the bearings to malfunction, which eventually leads to the device getting greased.
• Loosens the fixing components of the device and the bolts.
• Causes a lot of noise when the device is operating.

Therefore, it is strongly recommended that you always keep in mind the condition of the mechanical vibrations of the fan and install vibration warning systems and temperature control bearings in sensitive applications to prevent possible accidents with initial preventive measures.

 Dangers related to high speed work

Rotational speeds higher than those designed for the fan can reduce the useful life of the spinner and cause hazardous conditions.

Instructions for operation, maintenance and repair of the dust collection system

High system speeds are usually caused by one of the following factors:

• Electrical faults in power supplies.
• Short circuit in circuits of important system components
• Defect in the drive system or inverter
• Mechanical rupture in rotating components

Speeding above a fan even within a limited period of time can cause irreparable damage such as sudden impeller failure.

It should be noted that even under normal fan operating conditions, there is a possibility of increased rotational speed, especially in fans where the motor is not connected to a standard drive system or inverter. Therefore, it is recommended to use this equipment with a fan for more safety.

Also, avoid arbitrary innovations without consulting Kavosh Zist Shayan Sanat Company, because it can cause the mentioned critical conditions. Of course, the selected engine is designed for the whole system and is an integral part of it, so avoid any arbitrary manipulation.

To avoid the dangers of high speed in the system, pay attention to the following points:

• On engines above 51 kw, implement the step-by-step start method to prevent additional load on the system and breakage of components.
• In fans designed for 11 Hz frequency, if the frequency changes, contact the manufacturer and do not act without the manufacturer’s permission.
• For fans with variable speeds, consider a shorter maintenance period. . Operation instructions

Maintenance and repair of dust collector system

• Avoid replacing non-core parts as such parts may not fit the system design and may cause the blades or rotor hub to break.
• Note the maximum speed specified in the catalog and the defined ambient temperature. For stainless steel rotors, these speeds should be reduced by up to 51%.
• Operation of the engine at a speed lower than 41% of the rated fan speed also reduces the cooling of the engine and increases its temperature.

 Maintenance instructions

Daily maintenance:

• Check the power supply amp daily.

Weekly maintenance:

• Make sure the straps are in good condition.
• Check input and output expansion joints.
• Visually inspect the butterfly balance.
• Check the amount of grease and vascazin of the electromotor fan.
• Check the amount of grease and vascazin bearings.

Monthly maintenance:

• Visit the seismographs
• Alignment of currencies__