Summary of the vacuum dehydration principle of the oil filter

Summary of the vacuum dehydration principle of the oil filter:

Relationship between boiling point and pressure

The boiling point of a liquid decreases as the pressure decreases (for example, the boiling point of water is 100°C under normal pressure, and it can be reduced to a lower level under a vacuum environment).

The oil filter lowers the boiling point of water by creating a vacuum environment, so that the water vaporizes at a low temperature.

Water vaporization process

After the water-containing oil enters the vacuum environment, the water becomes unstable due to the pressure reduction and can be vaporized without high temperature.

Similar to the rapid evaporation of water in a sealed space after vacuuming.

Water vapor treatment

The vaporized water enters the condenser through the guide tube and is collected in the water collection tank after being cooled and liquefied to achieve oil-water separation.

Analogy: the principle of condensation of water droplets on the body of a cold drink bottle.

Circulation and temperature control

The oil circulates through the vacuum zone multiple times to improve the dehydration efficiency (similar to the dehydration process of a washing machine).

Appropriate heating accelerates vaporization, but it is necessary to avoid oil deterioration (such as the temperature of the lubricating oil must be strictly controlled).

Equipment requirements

The vacuum system needs to be highly sealed (leakage will reduce efficiency).

The condenser needs to be effectively cooled and the pipeline needs to be prevented from clogging.

Application scenarios

Power industry: Transformer oil dehydration (to ensure insulation performance).

Mechanical industry: Lubricating oil dehydration (to extend equipment life).

Maintenance points

Regularly check the sealing, condensation effect and pipeline patency, similar to car maintenance.

Core step diagram:

Oil enters vacuum → Water vaporizes at low temperature → Steam diversion → Condensation and liquefaction → Water collection and separation

This technology efficiently removes free water and emulsified water, and is suitable for high-precision dehydration needs (such as transformer oil to below 10 ppm).