Air Blower And Difference Between Fan And Air Blower

Little Bit ABout Air Blower: Now we are going to tell you about the axial fan and centrifugal fan. Now those may be new terms for you. The axial fan typically is just referred to as a fan, as in a condenser fan. The centrifugal fan is usually just called a blower. So we will stick with this terms fan and blower.

In this article, You will learn about what is air blower and the differences between air blowers and fans.

What Is Air Blower?

A blower is similar to the fan, except that it can produce a much higher static pressure. Some times higher pressure is achieved by a multi-stage impeller arrangement.

ASME Standard

Air blowers are defined by the ASME as having a ratio of discharge pressure over suction pressure between 1.1 to 1.2. As per the American society of mechanical engineers ASME the specific ratio, the ratio of the discharge pressure, the suction pressure used to is for defining the Air Blower.

Applications For Air Blower

• Combustion air supplies
• On cooling and drying systems
• For fluid bed aerators
• With air conveyor systems
• For dust controls

Positive displacement air blowers are also used in pneumatic conveying and for sewage aeration, filter, flushing, and gas boosting as well as for moving gases of all kinds in the petrochemical industries.

Air Blower

• Air Blower circulates the air only on the specific or pointed area.
• The ratio of pressure is 1.1 to 1.2.
• It provides the air in a specific location or point.

Fan

• A fan circulates air around an entire room or space.
• The ratio pressure of the fan is up to 1.1.
• It provides air in the complete area.

General Maintenance

Regular Air Blower maintenance should include the following:

• Check V-belt for proper alignment, tension, and excessive wear.
• Lubricate the air blower and motor bearing.
• Periodically inspect the shaft, wheel, and impaler for dirt build-up, corrosion. and signs of excess stress or fatigue. Clean the components and when appropriate, apply new coatings.
• A definite time schedule for inspecting all rotating parts and accessories should be established. The frequency of expansions depends on the severity of operation and locality.
• Check fan and motor bearings and add lubricants if necessary. Be careful not to over grease as this can damage bearing seals.
• Make sure there are no debris and no unnecessary obstruction to airflow in outlet or inlet ductwork.
• Bearing on the high speed air blower tends to run hot. Therefore, do not replace a bearing because it feels hot to the touch.
• Always keep the air filter clean for the least amount of inlet air restriction.
• If vibration is evident then impellers should be checked for a balance.

Trouble Shooting

Problem : Cause : Solution

• Excessive vibration: Air Blower impeller out of balance: Inspect impeller and motor bearing.
• Excessive noise: Motor bearing required attention: Recharge with a great or replace the bearing.
• Bearing overheating: Improper quality of lubricant: Lubricant again with the proper lubricant.
• Wearing of bearing: Improper lubrication: Check and correct various causes of lubrication.
• Reduce static pressure: The duct system has more or less restriction than anticipated/choked filters: Change obstruction in the system/filters needed to be cleaned or replace.

Diagnostic Tools

• Ultrasonic analyser
• Vibration analyser

Ultrasonic analyser

Air moving systems emit very distinct sound patterns around bearing and air blower blades. In most cases, these sounds are not audible to the unaided ear or drown out by the other equipment noises. Using an ultrasonic detector, the analyst is able to isolate the frequency of the sound being emitted by the bearings or blades. Changes in these ultrasonic wave emissions are indicative of changes in equipment condition some of these changes can be a precursor to component degradation and failure.

Vibration analyser

Within the moving system, there are many moving parts, most in rotational motion. These parts generate a distinct pattern and level of vibration. Using vibration analyser software, the analyst can discern the vibration amplitude of the point on the equipment being monitored. This amplitude is then compared with trended readings changes in these readings are indicative of changes in equipment condition.

Conclusion

Air blower is similar to fan but it is not a fan. It can produce much higher static pressure than the fan. The pressure ratio of the air blower is 1.1 to 1.2. The air blower can produce air to the selected location, area, or point. The air blower usually uses in Cleaning the dust, With air conveyor systems, For fluid bed aerators, On cooling and drying systems like AC and refrigerator, and Combustion air supplies.

Some people think that air blower and fan do their job in the same way but the fan gives air to the whole area and the air blower gives air into the pointed area.

We also have that air blower in our store but we have an air blower for wind puppets so if you want to buy you can also buy it from our store.

“Hope this article helps to learn something thank you”