This article relates to the vacuum pump cleaning field, is about the import vacuum pump cleaning processing instructions. The vacuum pump widely used in industrial production is oil-type vacuum pump, which USES transformer oil as the working fluid. Its advantage is that the vacuum degree is improved by the lower saturated vapor pressure of the oil, up to the absolute pressure of 6.7mbar. However, in the process of work, such as in the removal of the gas pollution, or in some special working conditions, the gas contained in the auxiliary agent, catalyst after cooling into the water does not dissolve in the viscous gel, attached to the blade and impeller of the vacuum pump, resulting in the vacuum drop affect the performance of the vacuum pump. Therefore, every once in a while to remove the vacuum pump blade and impeller to clean. This frequent disassembly is likely to cause vacuum pump wear and vacuum drop. Therefore, an improved cleaning method is needed to overcome the above defects, reduce the damage to the machine caused by disassembly and environmental pollution, and extend the service life of the machine.
The cleaning treatment in vacuum pump technology generally refers to the cleaning treatment of the structural materials, filling materials and vacuum parts. Removing or reducing contaminants will facilitate good vacuum, increase connection strength and air tightness, and improve product life and reliability.
Several types of vacuum pump contaminants
1. Grease: lubricants and vacuum grease contaminated during processing, installation and operation;
2. Water droplets: hand sweat during operation, saliva when blowing glass, etc.;
3. Surface oxide: surface oxide formed by long-term base dew of easily oxidized materials or placed in humid atmosphere;
4. Acid, alkali and salt substances: residual substances after cleaning, hand sweat, minerals in tap water, etc.;
Dust in the air and other organic matter.
During the use of vacuum equipment, the parts will be contaminated. This contamination is related to operating conditions and vacuum pumps. Such as vacuum drying system, often used after the evaporation of the material will be contaminated; The inner wall of the vacuum coating machine will be polluted by the evaporation material;
A single layer of monolayer gas on the exposed surface of the vacuum system is essentially an infinite source of gas, which keeps the vacuum pump at full capacity. The wavelength of visible light is about 5x10^-5cm, and the spacing between molecules in the monolayer is 10^-7cm. When assembling a vacuum system, the surface must be chemically cleaned with a liquid, and the residue of the cleaning solution must be completely negligible after evaporation and drying. In addition, the vapor pressure of the liquid used for final cleaning must be high enough so that it can evaporate and dry in a short time.
In this paper, the vacuum cleaning instructions through under the running condition of vacuum pump to adjust vacuum degree, and USES the NMP, ethanol or acetone solution for cleaning, cleaning fluid and efficient cleaning the adherent dirt inside the vacuum pump, reduce disassemble the machine damage and pollution to the environment, be used after washing passivation passivation agent in order to prolong the service life of the machine, widely used for industrial purposes.
Roots vacuum pump in hydrocarbon cleaner
vacuum pump in leather wet processing
vacuum pump in touch steaming process
vacuum pump in vacuum furnace
No comments:
Post a Comment