Common vacuum applications in physics labs are: vacuum filter extractors, waste liquid extractors, rotary evaporators, vacuum drying ovens, freezers and other equipment.
In the laboratory with more is the oil-free piston (mostly used for microbiological testing) and corrosion-resistant diaphragm type (mostly used in chemical laboratories) two kinds of piston generally and vacuum filtration, microbiological testing, waste liquid extraction, vacuum drying box and other equipment supporting the use. Corrosion-resistant diaphragm type and rotary evaporator, vacuum drying box, centrifugal concentration and other supporting the use of.
Non-dry vacuum pump, such as oil vacuum pump, water circulation vacuum pump. Non-dry vacuum pump *** the same point is that it needs to use other substances (such as water and oil) to achieve the ideal vacuum, the most used in the laboratory is the oil rotary vane pump, generally and freeze-drying machine, vacuum drying oven, etc. supporting the use of.
The role of vacuum pumps
Vacuum pumps have a wide range of uses, and are used in a variety of industrial production and people's livelihoods in industries such as metallurgy, chemical, food, medicine and other related industries. In addition to industrial production and other fields, vacuum pumps are also widely used in various chemical and biological laboratories and other fields. There are two main types of vacuum pumps used in laboratories: vacuum filtration and vacuum drying.
Vacuum filtration generally with a variety of laboratory vacuum filtration devices, such as solvent filters, sand filter bottle, Bushman's funnel filter bottle, bottle-top filters, microbial limit test filtration device, multiple filters and so on. Simply put, it is the use of vacuum pumps, micro vacuum pumps and other equipment that can provide a vacuum, so that the separation of solids, liquid mixtures, etc., an application to speed up.
Vacuum filtration is often used by medical, scientific research and other experiments, so in general, the volume of large, noisy, high power consumption of large vacuum pumps is not suitable, commonly used is a miniature vacuum pump, small vacuum pump.
Vacuum drying is the use of low-pressure state of the boiling point of the liquid is reduced, at room temperature that can be boiled and evaporated, so that the sample to water or solvent and other substances, so as to achieve the concentration of samples or crystallization method.