How to maintain Roots blower?

Come on

Not less than the center point of the oil mirror and not more than two thirds of the oil mirror. Always pay attention to the splash of lubricating oil and the position of oil quantity.

2/4

Change the oil frequently.

Replace the fan after the first operation for 8 hours, and then replace it according to the use environment and oil quality (such as black oil). It is generally recommended to replace it once every three months.

Please use the oil recommended by the manufacturer.

3/4

Diligent fatliquoring

When filling grease, be sure to unscrew the oil drain hole screw on the other side of the grease nozzle. After filling grease, tighten the screw when new grease leaks from the oil drain hole. It is generally recommended to make up once a week.

Please use the grease recommended by the manufacturer.

4/4

Belt adjustment

The tightness of the belt must be appropriate, and the belt should be tightened after 24 hours of start-up. Too tight belts are easy to be damaged by heat, and too loose belts will be damaged prematurely.

Belt-driven fans should pay attention to belt tension. When the new fan leaves the factory, it has been adjusted by the factory, and it will be tensioned again after 24 hours of startup, and then it will be tensioned regularly to ensure the normal operation of the fan. When replacing V-belts, complete sets should be replaced at the same time, and the models and specifications should be unified. When installing the belt, pay attention to the fact that the two shafts are parallel, the wheel grooves are on the same straight line, and the belt is at right angles to the shaft; Don't use tools to force it in, but use a tensioner to tighten it.

Principle of Roots Blower

1/2

Roots blower is a positive displacement blower. There are two three-blade impellers that rotate relatively in the space sealed by the shell and the wallboard. Because each impeller adopts involute or epicycloid as the machining profile of the impeller, the three blades of each impeller are the same and the two impellers are the same, which greatly reduces the machining difficulty. When machining the impellers, numerical control equipment is used to ensure that no matter where the two impellers rotate, a certain minimum clearance can be maintained under the condition that the center distance between the two impellers remains unchanged, thus ensuring that the gas leakage is within the allowable range.

2/2

The two impellers rotate in opposite directions. Because the gaps between the impellers, the impellers and the shell, and the impeller and the wall plate are extremely small, the air inlet is in a vacuum state, and air enters the air inlet cavity under the action of atmospheric pressure, and then the two blades, the wall plate and the shell of each impeller form a sealed cavity. When the impellers rotate, the air in the air inlet cavity is continuously brought to the exhaust cavity by the sealed cavity formed by the two blades. Because the impellers in the exhaust cavity are meshed with each other, the air between the two blades is squeezed out, and the air continuously flows from the intake cavity.