Addtime： 2020-07-18 Browse times： 3658
Vacuum pump oil emulsification explanation in the use of vacuum pump oil, often found that the vacuum pump oil emulsion, this is what is going on?
1、 What is emulsification?
From the point of view of physics, it can be understood that because of the role of surfactant, the phenomenon that two liquids which can not be mixed together can be mixed together is called emulsification phenomenon.
2、 Reasons for emulsification of vacuum pump oil
During the operation of vacuum pump, corrosive gas may be inhaled, or air and cold gas containing water vapor may be inhaled. Then the corrosive gas will corrode the metal parts in the pump, and the chemical changes will occur with the vacuum pump oil, and the air and cold gas containing water vapor will also cause the vacuum pump oil to emulsify.
3、 Influence of vacuum pump oil emulsification
Vacuum pump is widely used. In view of the reasons of vacuum pump oil emulsification, it is easier to produce < br > crude emulsion phenomenon in the drying process of vacuum pump used in medicine, food, ceramics and other industries. Because in the vacuum dehydration process, a large amount of water vapor and condensate will be discharged into the pump oil, which will inevitably produce vacuum pump oil emulsion
4、 Harm of vacuum pump oil emulsification
Emulsification of vacuum pump oil not only affects the service life of pump oil, but also deteriorates the limit pressure, which is one of the common faults of vacuum pump. It seriously affects the normal operation of vacuum pump.
5、 Prevention of vacuum pump oil emulsification
The simplest way to prevent emulsification of vacuum pump oil is to select anti emulsifying pump oil, which has good anti emulsifying property. The oil-water separation ability of pump oil is relatively strong. Water vapor and condensate gas can be removed by opening gas valve. You can simply remember that low viscosity pump oil has better anti emulsifying ability than high viscosity oil. The effect of pump oil with additive is more obvious than that without additive.
6、 Guide to the use of vacuum pump oil
Today's vacuum pump is very important to learn how to use vacuum pump correctly. With these basic knowledge, I believe that the majority of new and old users will no longer be confused by vacuum pump oil caused by vacuum pump failure.
Methods for cleanliness of vacuum pump oil
1. The oil loading window must be clean. It is strictly prohibited to expose it to the sun and open air. It should be stored in dark, dry and ventilated places to prevent moisture and dust from mixing in.
2. Oiling appliances must be special equipment, not containers containing other oil or solvent; pumping pump.
3. When taking oil or loading oil, the light rain around the drum cover must be removed to prevent the impurities from mixing into the oil and causing pump wear.
4. When changing the oil, the used oil in the pump body should be drained. After the new oil is poured into the pump, slowly rotate the pump shaft, clean the pump cavity, drain the residual oil, repeatedly clean it for several times, and then replace the new oil after cleaning.
5. When mineral oil is exchanged with ester oil or other synthetic oil, the pump should be disassembled for thorough cleaning. All parts must be dipped in ester oil to prevent contamination.
6. When the pump is overhauled, all parts of the pump must be cleaned with solvent or cleaning agent and dried.
8、 In terms of vacuum pump oil mixing:
1. Different brands and varieties of vacuum pump oil can not be mixed, old and new oil products can not be mixed.
2. Strictly avoid mixing vacuum oil with other lubricating oil, let alone light oil, which will affect the vacuum performance.
3. Vacuum pump should try to avoid the extraction of solvent, steam and corrosive gas, must be frequently checked, oil change.
4. If the inhalation of chemical gases and solvents, the pump oil pollution affect the vacuum, it must be cleaned and replaced.
9、 Oil change period of vacuum pump oil:
1. When the vacuum of pump oil drops and cannot meet the demand;
2. When the color of pump oil becomes dark and brown, the oil should be changed.
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