The liquid-ring vacuum pump selected by vacuum pump system is more advantageous than other vacuum pumps because it not only overcomes the limit pressure difference of single liquid-ring vacuum pump (the limit pressure of system is much higher than that of liquid-ring vacuum pump), but also has the disadvantage of low pumping rate under certain pressure. At the same time, it retains the advantages of Roots vacuum pump which can work quickly and has a relatively large pumping rate.
It can be adapted to extract a large amount of condensable steam, especially when the capacity of gas-ballast oil-seal mechanical vacuum pump to remove condensable steam is not enough, or the solvent used can deteriorate the performance of the pump oil, or the vacuum system does not allow oil pollution. If equipped with explosion-proof motor and electrical appliances and abide by the corresponding safety rules, it can also remove inflammable and explosive gases.
Open Cycle Water Ring Vacuum System
Closed circulating water system consisting of liquid ring vacuum pump and circulating water system, heat exchanger, pipeline, automatic control valve, control instrument, electronic control cabinet, etc. The unit can operate automatically through PLC and realize on-line control of multiple units. Compared with a single liquid ring vacuum pump, it is more convenient to install. Because the working fluid can be recycled, the system greatly reduces the consumption of working fluid and pollution to the environment, so it has obvious advantages in various occasions such as poisonous gas and organic solvent in the extracted gas.
Closed-circuit circulating system of liquid ring vacuum pump can be used in most applications. The working fluid of closed-circuit circulating system of liquid-ring vacuum pump can use many kinds of mediums: water, ethanol, xylene, aniline, acetone and other organic solvents, transformer oil, etc.
Therefore, vacuum pump system can be widely used in vacuum distillation, vacuum evaporation, dehydration and crystallization in chemical industry, freeze-drying in food industry, vacuum drying in pharmaceutical industry, polyester chips in light textile industry, high-altitude simulation test, etc.