Advantages of vacuum discharge gear pumps

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Advantages of vacuum discharge gear pumps: Vacuum discharge gear pumps feature a structure that combines an axial flow centrifugal pump with a gear pump, using the axial flow centrifugal design to enhance the vacuum suction capacity of the gear pump. Suitable for high-vacuum extraction in processes such as short-path distillation and vacuum distillation. Suitable for industries such as biopharmaceuticals, grain and oil processing, lubricant distillation and regeneration, phospholipid processing, and deep-sea fish oil processing. Vacuum discharge gear pumps are used in fields such as petrochemicals and fine chemicals, and play an important role in various distillation equipment. For example, in vacuum distillation equipment, thin-film evaporators, short-path evaporators, or molecular distillation units, the vacuum discharge pump is one of the essential process pumps. 　　 The basic units of a distillation apparatus are an evaporator and a condenser. The medium is heated to its boiling point and evaporated, after which heat is removed again to cause the medium to condense back into a liquid state. However, in order to reduce the processing time for temperature-sensitive media, efforts are often made to keep the processing temperature as low as possible; this is why distillation devices operate under vacuum, as the boiling point decreases with the saturated vapor pressure. To optimize the vacuum condition and lower process temperatures, thin-film evaporators or even short-path evaporators are appropriately employed at the time-temperature critical operating conditions. With these types of distillation apparatus, the distance between the evaporator and the condenser is reduced, the hydrostatic head of the liquid column is decreased, allowing for very high vacuum levels to be achieved. Furthermore, the liquid film prevents the formation of bubbles, improving the consistency of heat conduction and heat input. If the distance between the evaporator and the condenser is very short, the pressure inside the evaporator is very low (