How to solve the problem of emulsification and whitening of lubricating hydraulic oil
2019/12/19??????view:
Application of hydraulic oil:
1. Industrial hydraulic system
Hydraulic oil is suitable for various types of hydraulic systems in manufacturing and industry.
2. Mobile hydraulic transmission system
Hydraulic oil can be effectively used in mobile hydraulic equipment such as excavators and cranes.
3. Marine hydraulic system
It is suitable for marine hydraulic system recommended to use ISO HM hydraulic oil.
The sources of water in the hydraulic system are:
The water brought by the hydraulic oil production process has not been effectively removed, and the water vapor, rainwater or other water pollution sources in the process of oil storage and use have invaded. Allowable water content in hydraulic oil:
General system < 0.5%, oil may stop in the circuit and return to the oil tank < 0.1%, oil in some oil pressure pipelines does not return to the oil tank < 0.05%, precision instrument < 0.03%, and the factory water content of hydraulic oil produced by regular lubricant manufacturers is required to be < 0.03%.
Hazards of water in oil:
Accelerate the aging of oil products; produce sludge; reduce lubricity; corrode metals; produce rust.
There are three main indexes to inspect the water resistance of hydraulic oil in the specification of hydraulic oil:
Demulsibility - the ability of oil and water to form emulsions in two layers
Rust resistance - the ability of oil products to prevent rusting of metals in contact with them
Hydrolytic stability refers to the ability of oil to resist hydrolytic reaction when hydraulic oil is mixed with water
The hazards of water inflow in the hydraulic system are as follows:
The harm of water to the hydraulic system can react with the hydraulic oil to form acid, colloid and sludge, and water can also separate out additives in the oil; the main effect of water is to reduce the lubricity and dissolve in the micro of the hydraulic oil: it can react with the hydraulic oil to form acid, colloid and sludge, and water can also separate out additives in the oil; the main effect of water is to reduce the lubricity and dissolve in the micro water in the hydraulic oil It can accelerate the wear of high stress components. Only from the study of the fatigue life of mineral oil rolling bearing with water (100-400) × 10-6, the bearing life is reduced by 30% - 70%. Water can cause sticking of control valve, cavitation damage at pump inlet or other low pressure parts, corrosion and corrosion of metal.
There are three ways for water to enter the hydraulic system:
In case of mechanical failure, such as poor sealing, leakage of cooling coil causes water to enter the oil;
In the hot and humid climate, the fuel tank is brought in by breathing;
The working environment is humid, rain, snow and ice melting cause water pollution.
How to solve the problem of water inflow in the hydraulic system:
Strengthen the monitoring of water content in the oil; use the outdoor hydraulic equipment, Zui good use of weather proof tents; strengthen the system sealing measures, waterproof access. The oil tank breathing hole is equipped with a dryer;
For the hydraulic oil that has been emulsified and whitened, please don't worry. Zhongjing brand hydraulic oil dehydration demulsification and oil filtration function developed by our company can effectively solve this situation. After treatment, all indexes of the oil can be restored to the national standard, especially the water content can be controlled below 0.3%.
When the equipment is working, the oil will pass through a special filter with large amount of dirt to remove impurities. The contact area of the oil in the vacuum separator is increased to hundreds of times by using the special water separator and the personalized vacuum separator, which uses the hydrophobic technology and the principle of "cavitation". The "cavitation" system makes the evaporation surface area of the oil increase continuously, and the evaporation interface is constantly updated, which maximizes the oil travel in the vacuum system and the static water volatilization surface The water in the oil is vaporized and evaporated rapidly under the condition of low heat, high vacuum, large surface and high pumping speed, and then discharged by the vacuum system.
After vacuum vaporization and dehydration, the dry oil in the vacuum separator rises from negative pressure to positive pressure through the oil delivery pump. After fine filtration, the purified oil is discharged from the oil outlet to complete the whole oil purification process. This equipment adopts the physical principle to filter and dewater, and does not add any chemical additives in the process of treatment, and will not have any adverse effect on the oil products. Please feel free to use it. Friends in need can be at any time.
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