Oil purifier three-stage filtration treatment

The three-stage filtration treatment of the oil purifier is a filtration method that gradually improves the cleanliness of the oil. It removes pollutants of different sizes and types in the oil through a multi-stage filtration system. This method is widely used in industrial equipment, power systems, aerospace and other fields to ensure the high cleanliness of the oil and the efficient operation of the equipment. The following is a detailed description of the three-stage filtration treatment:

1. The basic principle of three-stage filtration

The three-stage filtration treatment usually includes three stages: primary filtration, intermediate filtration and fine filtration. Each stage filters pollutants of different sizes to gradually improve the cleanliness of the oil.

2. The process of three-stage filtration

2.1 Primary filtration (coarse filtration)

- Purpose: Remove large particle pollutants (such as metal chips, fibers, dust, etc.) in the oil.

- Filtration accuracy: usually 100-200 microns.

- Filter media: metal mesh filter element, coarse filter paper, etc.

- Function: Protect subsequent filtration equipment and extend the life of the filter element.

2.2 Intermediate filtration (medium efficiency filtration)

- Purpose: Remove medium-sized particle pollutants.

- Filtration accuracy: usually 10-50 microns.

- Filter media: fiber filter element, pleated filter element, etc.

- Function: further purify the oil and prepare for fine filtration.

2.3 Fine filtration (high-efficiency filtration)

- Purpose: remove tiny particles and colloidal substances to achieve high cleanliness requirements.

- Filtration accuracy: usually 1-10 microns.

- Filter media: high-precision filter paper, glass fiber filter element, etc.

- Function: ensure that the oil reaches the cleanliness standard required for equipment operation (such as NAS 1638 or ISO 4406).

3. Advantages of three-stage filtration

- Gradual purification: through multi-stage filtration, pollutants of different sizes are gradually removed to avoid the excessive burden of single-stage filtration.

- Extend the life of the filter element: primary filtration protects the intermediate and fine filter elements and reduces the frequency of replacement.

- Improve filtration efficiency: each stage of filtration focuses on pollutants of a specific size to improve the overall filtration efficiency.

- Strong adaptability: The filtration accuracy of each level can be adjusted according to the degree of oil contamination and equipment requirements.

4. Application scenarios of three-stage filtration

- Industrial equipment: such as hydraulic systems, lubrication systems, gearboxes, etc.

- Power systems: such as purification of transformer oil and turbine oil.

- Aerospace: filtration of aviation fuel and hydraulic oil.

- Automobile manufacturing: purification of engine lubricating oil and transmission oil.

5. Selection of three-stage filtration equipment

- Filter element type: ｓｅｌｅｃｔ the appropriate filter element material (such as cellulose, glass fiber, stainless steel, etc.) according to the properties of the oil.

- Filtration accuracy: Determine the filtration accuracy of each level according to the equipment requirements.

- Flow and pressure: ｓｅｌｅｃｔ the flow and pressure resistance that match the system.

- Automation function: Equipped with an automatic control system to achieve unattended operation.

6. Maintenance and care

- Regular replacement of filter elements: Regularly ｒｅｐｌａｃｅ filter elements at all levels according to usage to ensure the filtration effect.

- Cleaning equipment: Regularly clean the filtration equipment to prevent the accumulation of pollutants.

- Monitor the oil status: Use oil testing instruments to regularly monitor the oil cleanliness and adjust the filtration strategy in time.

Summary

The three-stage filtration treatment of the oil purifier gradually removes large particles, medium particles and tiny particles in the oil through three stages of primary, secondary and fine filtration to ensure high cleanliness of the oil. This method has the advantages of high efficiency, reliability and strong adaptability, and is widely used in industry, power, aerospace and other fields. Choosing appropriate filtering equipment and filter elements and performing regular maintenance can significantly improve the operating efficiency of the equipment and the service life of the oil.