How the oil purifier works？

The operation mode of the oil purifier varies according to its type and working principle. The following are the operation modes and characteristics of several common oil purifiers:

I. Plate and frame oil purifier

Operation mode

1. Preparation

- Check whether the filter cloth, filter plate and seal are intact and ensure correct installation.

- Pour the oil to be treated into the oil tank.

2. Start the oil pump

- Start the oil pump and the oil is pumped into the oil purifier.

- The oil passes through the filter cloth and filter plate, solid impurities are trapped, and clean oil flows out.

3. Filtration process

- The oil passes through the filter cloth under pressure, and impurities gradually accumulate on the surface of the filter cloth.

- As the filtration proceeds, the pressure gradually increases, and the pressure gauge needs to be monitored to avoid overpressure.

4. Stop and clean

- When the pressure reaches the set upper limit or the filtration efficiency decreases, stop and clean or ｒｅｐｌａｃｅ the filter cloth.

- Clean the filter plate and filter frame to prepare for the next filtration.

Features

- Suitable for high-viscosity oil and oil with more impurities.

- High filtration accuracy, but manual cleaning of filter cloth is required.

II. Vacuum oil purifier

Operation mode

1. Preparation

- Check whether the vacuum pump, heater and condenser are normal.

- Pour the oil to be treated into the oil tank.

2. Heating the oil

- Start the heater and heat the oil to the set temperature (usually 40-60℃).

3. Vacuum separation

- Start the vacuum pump to form a negative pressure in the separation chamber.

- In the negative pressure environment, the water and gas evaporate rapidly.

4. Condensation drainage

- The evaporated water and gas are cooled by the condenser and condensed into liquid water for discharge.

5. Filtering the oil

- The oil passes through a precision filter to remove residual solid impurities.

6. Detect oil quality

- After the treatment is completed, detect the moisture content and cleanliness of the oil.

Features

- Suitable for removing moisture, gas and tiny impurities in the oil.

- High degree of automation and high processing efficiency.

III. Centrifugal oil purifier

Operation method

1. Preparation work

- Check whether the centrifuge and oil system are normal.

- Pour the oil to be treated into the oil tank.

2. Start the centrifuge

- Start the centrifuge and the oil enters the high-speed rotating drum.

- Under the action of centrifugal force, impurities and water are separated and deposited on the inner wall of the drum.

3. Separation process

- Clean oil flows out from the center of the drum, and impurities and water are separated.

4. Shutdown cleaning

- Clean the impurities and water in the drum after shutdown.

Features

- Suitable for removing water and larger particles of impurities in the oil. - The processing speed is fast, but the filtering accuracy is relatively low.

IV. Pressure oil purifier

Operation method

1. Preparation

- Check whether the filter element and oil system are normal.

- Inject the oil to be treated into the oil tank.

2. Start the oil pump

- Start the oil pump, and the oil passes through the filter element under pressure.

- Solid impurities are trapped by the filter element, and clean oil flows out.

3. Filtration process

- As the filtration proceeds, the filter element gradually becomes blocked and the pressure increases.

- When the pressure reaches the set upper limit, the filter element needs to be replaced.

4. Stop and ｒｅｐｌａｃｅ the filter element

- ｒｅｐｌａｃｅ the filter element after stopping, and clean the oil tank and oil circuit.

Features

- Suitable for high-precision filtration and removal of tiny particle impurities.

- The filter element needs to be replaced frequently, and the operating cost is high.

Electrostatic oil purifier

Operation mode

1. Preparation

- Check whether the electric field and oil system are normal.

- Inject the oil to be treated into the oil tank.

2. Start the electric field

- Start the high-voltage electric field, and the charged particles in the oil are adsorbed under the action of the electric field.

3. Filtration process

- Clean oil flows out, and charged particles are trapped in the electric field.

4. Shutdown cleaning

- Clean impurities in the electric field after shutdown.

Features

- Suitable for removing tiny charged particles in oil.

- High filtration accuracy, but complex equipment and high maintenance cost.

Different types of oil purifiers have different operation modes and are suitable for different oil treatment needs. Selecting a suitable oil purifier and operating it correctly can effectively improve the oil quality and extend the service life of the equipment. In actual use, it is necessary to ｓｅｌｅｃｔ a suitable oil purifier according to the oil type and treatment requirements and operate and maintain it strictly by the operating procedures.