Air Sponge

Description of the process of UMA used & new woodworking machines

Regarding paint booth, where the exhaust fan of the cabin is activated it creates a "negative air pressure" in the cab stand. To counter this "negative" pressure UM (makeup air) the unit is used to provide air to replace air being exhausted. If the UMA is designed to force more air into the cabin of the exhaustion of air pressure (or cab) is called "positive".

Control of the air entering the cabin from the air being exhausted from the cabin is extremely important to maintain the proper "flow" of air about to be painted and remove the most effective and efficient spray. This is true for all painting equipment in the environment of woodworking.

Machine Fans

"Axial Tube" is a blade propeller fan type. tube axial fan is the best for use on the exhaust of the car, because they are designed to "pull" the air, like an airplane propeller draws air over the wing aircraft. This will ensure the smooth distribution of paint on the wood surface. aluminum plates are used because they will not sparkle (to cause a fire) if the blades off and rub against the fan housing of steel.

A well designed UMA, as part of woodworking machines , uses a ventilator fan type (squirrel cage), because the fans are designed to "push" the air (in the cab). The heater in your car has a fan that is used to push the heat through the vents radiator.

Air Flow Pressure in the machine

The traffic control and air pressure is a delicate balance between incoming air and exhaust air. Particular attention should be taken when performing equipment painting the air with woodworking machines.

Example: If the stand is exhausting 10,000 CFM (cubic feet per minute) and the intake fan of the AMU is forcing 10,000 CFM on the car is said to be perfectly "balanced". But if the painter opens the door to enter the booth, it will cause the cabin pressure to go negative and pick up dirt and contamination through the open door. To fight against it, the more air is pushed into the cabin (eg 12,000 CFM) is depleted as the creation of a "positive" state, by whom, when the painter entered the cabin, a small amount air is expelled contamination control. This applies to all environments where machines wood is used.

The difficulty arises when the drawable is placed in the cabin. The size of the element has a certain amount of volume in the cabin. If you continue to force the same amount of air (12,000 CFM) in a cabin, which now has a reduced volume, you will over-pressurize the cabin.

Note: the pressure is the # 1 cause of contamination of soil in a booth. It severely disrupts the flow of air designed into the cabin and causes uncontrolled turbulence, which affects the operation of the machine.

Another difficulty occurs when the paint timber in combination with woodworking machines, such as exhaust gas filters are clogged with more spraying. As the filters clog the fan can not remove enough air from the cabin. The sample of 10,000 CFM can reduce up to 8,000 or less. If the UMA continues to force the same 12,000 CFM in the cabin, it will again pressure and contaminate the arrival.

Airflow balancing