How to distinguish the different functions of oil filter and the viscosity of oil
How to distinguish the different functions of oil filter and the viscosity of oil
The oil filter is a filtering device that removes mechanical impurities, oxidation by-products and moisture in the impure oil by using technical methods such as gravity, centrifugation, pressure, vacuum distillation and mass transfer. The oil filter is mainly used to improve the cleanliness of the oil used in machinery and electrical appliances, so that it can exert good performance and extend the service life of the equipment.
The function of the oil filter is different
1. Oil filters that filter impurities, such as plate and frame oil filters, filter oilers, automatic slag filter oil filters, and bag filter oil filters.
2. Oil filters that filter impurities, moisture, and gases, such as vacuum oil filters and bag-type oil filters.
3. Oil filter for reducing oil color and regenerating oil. For example, vibrating slag decolorization oil filter, automatic slag oil filter, etc.
4. Containing the above functions, the filtered product is qualified by the National New Oil Standard (GB) inspection.
Oil filter
Scope of application
Mainly applicable to various departments such as mining, metallurgy, petroleum, railway, machinery, chemical industry, textile, cement, power plant, instrumentation and so on. It plays a great role in the purification and regeneration of various industrial lubricating oils with deteriorated pollution, extending the maintenance cycle and service life of equipment and reducing production costs. It can effectively remove contaminants in oil products such as water, water-soluble acids, alkalis, mechanical impurities, etc., and improve the kinematic viscosity, flash point, emulsification of oil products The oil can be quickly restored to the required performance, approaching or reaching the corresponding national new oil standard.
Oil viscosity
High-viscosity oil cannot pass through the fine filter, and the accuracy needs to be reduced.
because:
(1) The filter element is often clogged, requiring frequent cleaning or even replacement of the filter element.
(2) Increase the axial pressure so that the oil can pass through the filter faster, but the filter element is often crushed.
(3) Add preheating oil tank to increase temperature and reduce viscosity.
Generally speaking, the filtration accuracy of the fine filtration stage is selected as:
(1) Insulating oil, choose 1 ~ 5μm.
(2) For lubricating oil and turbine oil below 46 ﹟, select 10 ~ 20μm.
(3) Select 20-50μm for internal combustion engine oil and gear oil.
Mechanical principle ordinary oil filter
Ordinary oil filter is a movable device composed of filter bed, oil pump and coarse filter.
The filter bed can be operated continuously, and the dirty filter is pressed into the dirty filter under pressure. The filter is composed of a set of alternately arranged filter plates and filter frames and a mechanism including a manual screw pressing device and a pressing plate. There is filter paper (or filter cloth) as filter medium between the filter plate and the filter frame (small ring). By the pressure of the pressing device, the filter plate and the filter frame are pressed against the fixed central tube and movable pressing Between the plates, a separate filter chamber is formed, and the filter paper (or filter cloth) pressed between the filter plate and the filter frame plays a filtering role. Dirty oil is introduced from the center, and after filtering through the filter chamber, clean oil is drawn from another corresponding channel of the filter plate
