Working Principle Of Oil Mist Lubrication System

Working Principle Of Oil Mist Lubrication System

Oil mist lubrication is the favored technique for bearing oil for gear utilized in nature conditions antagonistically influence bearing life because of the entrance of contaminants in the bearing lodging. Oil fog oil will upgrade the bearing unwavering quality coming about

• Elevated requirements of grease quality control

• Counteraction of the entrance of water and different contaminants into the bearing lodging

In Oil mist oil frameworks, the lube oil is atomized to the size of 2 μm to 7 μm in distance across. The oil fog size will rely on the size of the bearing and warmth created in the bearing contact focuses (Load point).

The framework will comprise of a focal fog generator, from the focal fog generator lube oil send to different siphons situated in the plant. The oil fog oil comprises of a dry, low-pressure demeanor of 50 bar(g) or 0.725 psi. The ordinary centralization of oil fog in the circulation air is roughly 6 ppm.

Sort of Oil mist lube

In ventures they are two sorts of oil fog grease frameworks are utilized. They are

• Unadulterated Oil Mist Lubrication

• Cleanse Oil Mist Lubrication

In the above Pure and Purge oil fog grease are broadly utilized in pumps

Significant Component of Oil Mist Lubrication

The underneath recorded parts for Oil fog grease are the base prerequisite. Some time will be change because of the Oil Mist Lubrication production and buyer necessities.

Oil mist generator

The oil fog generator is the core of the oil fog oil framework. The oil fog will be produced by methods for either venturi or vortex chamber. At the point when contrast and vortex, venturi type is broadly utilized.

In the generator, the oil fog is created by going compacted air through a venturi or vortex. It will make low weight and make the oil be directed from the repository. Because of this, the oil is brought into the high-speed air stream and it will be atomized.

Beads size of bigger than 7 μm isn’t effectively moved by the dry air stream. Subsequently, they are captured by a perplex and come back to the store.

Oil mist cabin

The oil fog generator is encased in a treated steel bureau, which will be unattached and given a pivoted entryway with vigorous terminations. The bureau is weatherproofed and vented. Typically, it is mounted at ground level.

Reclassifiers

The reclassifiers are utilized to control the progression of fog to each pertinent focuses. It makes choppiness and causing the dry oil fog to blend and shape wet oil fog. The reclassifiers are normally situated at the parts of the bargains lines in the fog complex. The renamed oil will be bolstered to the individual bearing lodgings by means of feeder lines which will be situated inside (most extreme) 2.5 m (8 ft) long.

The estimating of reclassifiers depends on the bearing kind, shaft speed and shaft distance across.

Air

The air provided to the fog generator will be perfect and dry. Ordinarily, Instrument air will be utilized for this application.

The air provided to the oil fog framework will meet the accompanying necessities:

• Air will be liberated from fluids, lethal, destructive and combustible gases
• The solids content will be under 0.1 g/m3 and the molecule breadth will not more than 2 to 3 μm 
• The dew point at the stock weight will consistently lower than the most reduced yearly surrounding temperature.

Air channel

An air channel or blend channel will be utilized at the air gulf supply. It will be equipped for expelling 100% of particles of the size from 30 μm and bigger.

Air controller

An air controller will be given to control the weight of the air supply inside the oil fog circulation framework.

Air pre-radiator

For oil fog grease frameworks that need to work in colder atmospheres. A thermostatically controlled electric air pre-warmer will be utilized to keep up the air temperature over the dew point.

Oil Mist Lubrication Working Principle

The oil fog generators are normally intended for a limit of 100 to 125 % of the appraised necessities of the framework. This necessity is generally mutually chosen by the buyer and producer. On the off chance that the structure limit is over 125% consideration ought to be taken the oil fog grease framework can meet the base working condition.

The Principal will give a dry air supply to the oil fog comfort at a weight territory between 3 bar (g) (60 PSIG) and 8 bar (g) (100 PSIG) from an instrument air header. This air supply will be by means of channeling introduced exclusively for the oil fog grease framework. Before the air goes into the oil generator it will go through the air channel to expel the polluting influences. At that point through pneumatic stress guidelines to keep up the necessary weight of oil fog generator and the air warmer to make the air dry (Refer Schematic chart beneath).

In the generator, the oil fog is produced by passing the dry air through a venturi or vortex. It will make low weight and make the oil be guided from the repository. Because of this, the oil is brought into the high-speed air stream and it will be atomized. The atomized oil enters the dissemination organize. The plan of the dispersion organize will guarantee that a homogeneous blend of air and oil arrives at all hardware.

The conveyance header is intended to keep up the adequate strain to bestow a speed to the oil fog. The stream is laminar all through appropriation header and it will be changed to fierce stream at the oil fog dissemination complex.

The complex comprises of reclassifiers, see glass chamber, channel association and push valve as appeared in the figure. The complex is utilized to gather the blended oil particles from the drop focuses and afterward the oil fog is infused into the bearing lodging for bearing grease.

Focal points of Oil Mist Lubrication

• Positive weight will forestall the ingression of sullying into the bearing lodging. 
• Bearing life will be reached out from 150% to 180%. 
• Generally utilized in tainting/earth situations 
• Lubrication utilization is less when contrasted with the regular technique. 
• Oil change over isn’t required.

Because of less moving parts, support cost is less.

Oil determination

Reasonable oil will be chosen together by Purchaser and Manufacturer. As a base, the accompanying variables to be considered for choosing the oil for fog grease:

• The consistency of the oil at the working temperature of the oil fog framework.

• The surface strain of the oil Pour guide relative toward the Operating temperature.

• Wax arrangement propensity of the oil at low surrounding temperature, to forestall blockage of the reclassifiers.