Separation oil filter:

Working principle: Separating oil filter machine, which uses the high-speed rotation of its centrifugal head to make the oil, water and impurities in the lubricating oil with different pollution levels have different specific gravity, and is quickly separated by different centrifugal force.

Advantages: It is suitable for oil separation with large particle impurities and obvious difference in specific gravity.

Disadvantages: 1, due to the different proportions of impurities, water, oil, etc. in the oil, so the separation will not be complete.

2, because the stains splash around the rotating strands, it is not convenient to clean up, it is easy to produce secondary pollution.

3. Low filtering accuracy.

Vacuum filter:

Working principle: working principle of lubricating oil vacuum oil filter

Vacuum oil purifier is designed according to the different boiling point of water and oil. It consists of vacuum heating tank, fine filter, condenser, prefilter, water tank, vacuum pump, oil drain pump and electrical cabinet. The vacuum pump draws out the air in the vacuum tank to form a vacuum. Under the action of atmospheric pressure, the external oil enters the primary filter through the inlet pipe, removes the larger particles, and then enters the heating tank, and the oil is heated to 40~75 °C. Automatic oil bleed valve, which automatically controls the amount of oil entering and leaving the vacuum tank. The heated oil is rapidly swirled by the spray wings to separate the oil into a semi-mist, and the water in the oil is rapidly evaporated into water vapor and continuously sucked into the condenser by the vacuum pump. The water vapor entering the condenser is cooled and then returned to the original water for release. The oil in the vacuum heating tank is discharged into the fine filter by the oil discharge pump, and the particulate impurities are filtered out through the oil filter paper or the filter element, thereby completing the vacuum oil filter quickly. Remove the impurities, water and gas from the oil, so that the clean oil is discharged from the oil outlet.

Advantages: 1. Each filter tank is equipped with a pressure controller. When the pressure is increased, the impurities are increased. The filter tank is opened, and the filter is removed for cleaning.

2. After the oil is filtered through circulation, the oil, water and impurities are completely separated and the oil is clear and transparent.

Disadvantages: The oil with large water content should be recycled several times, or the electric heating power should be increased, so that the oil is also filtered and thoroughly.