Vacuum pump device and dust remover thereof

Abstract

The invention discloses a vacuum pump device and a dust remover thereof. The vacuum pump device comprises a motor and a pump body. An air inlet hole is formed in the side, close to the motor, of the top end of the pump body. An air outlet hole is formed in the side, away from the motor, of the pump body. Two sets of impellers and a partition plate are installed inside the pump body, and each set of impeller is composed of a rotating shaft and blades; and a filtering net is of a hollow cylindrical structure, an interlayer is arranged in the filtering net, and a connecting ring is fixedly connected to the middle of the filtering net. According to the vacuum pump device, a two-stage compression vacuum pumping measure is adopted, the two sets of impellers are installed in the pump body, and the partition plate is additionally arranged between the two sets of impellers, so that air entering the air inlet can be allowed to enter the second set of impeller through a notch in the partition plate to be re-compressed after being compressed in the first set of impeller, and the vacuum pumping efficiency is improved; and by additionally arranging the filtering net between the impellers and a pump body shell, dust brought by intake air can be effectively absorbed, and the service life of the device is guaranteed.

Description

technical field [0001] The invention relates to the technical field of vacuum treatment, in particular to a vacuum pump device and a dust collector thereof. Background technique [0002] With the development of vacuum applications, there are many kinds of vacuum pumps, whose pumping speed ranges from a few tenths of a liter per second to hundreds of thousands or millions of liters per second. As vacuum technology has wider and wider requirements for its application pressure range in the field of production and scientific research, most of them need to be composed of several vacuum pumps to form a vacuum pumping system to pump air together to meet the requirements of production and scientific research processes. Due to the vacuum The range of working pressure involved in the application department is very wide, so it is impossible for any type of vacuum pump to be completely suitable for all working pressure ranges. Different types of vacuum pumps can only be used according t...

AI Technical Summary

Problems solved by technology

[0003] At present, most liquid ring vacuum pumps adopt the first-stage impeller compression and evacuation measures, resulting in low working efficiency and poor vacuum effect of the vacuum pump, and ordinary vacuum pumps do not have a good backstop structure, resulting in the air pressure in the vacuum pump when the vacuum pump is shut down. Greater than the pressure in the container, there is a problem of air backflow

Images