Moving type roots and slide valve vacuum unit

Abstract

The invention belongs to the technical field of vacuum devices and particularly relates to a moving type roots slide valve vacuum unit comprising a machine frame and a pump group installed on the machine frame. A slide device is arranged on the lower side of the machine frame. The pump group comprises a roots vacuum pump and a slide vacuum pump. The roots vacuum pump is located above the slide valve vacuum pump and is connected with a slide valve vacuum pump inlet of the slide valve vacuum pump through a connection pipeline. The slide valve vacuum pump is provided with an oil tank. An oil misteliminating device is connected with the upper side of the oil tank. The oil mist eliminating device is provided with a final air outlet. The machine frame is further provided with an electronic control cabinet controlling the unit to work. The slide device is arranged below the machine frame, so that the whole unit can be slid and transferred all around; according to the position where vacuumizing is actually needed, the machine frame and the whole unit can be directly moved to the needed position, moving is convenient, the pump group does not need to be disassembled, the service life of thepump group is prolonged, time and effort are saved, and the application range is wide.

Description

technical field [0001] The invention belongs to the technical field of vacuum equipment, in particular to a mobile Roots slide valve vacuum unit. Background technique [0002] Roots vacuum pumps have been tested for long-term operation in petroleum, chemical, plastic, pesticide, steam turbine rotor dynamic balance, aerospace space simulation and other devices, and are also widely used in petroleum, chemical, metallurgy, textile and other industries. The Roots vacuum pump is a vacuum pump without internal compression, usually with a very low compression ratio, so a backing pump needs to be added during use. [0003] The backing pump usually uses a slide valve vacuum pump, so the existing Roots pump unit includes a Roots vacuum pump, a slide valve vacuum pump and an oil-gas separation device. Then turn on the Roots vacuum pump to carry out pumping work after reaching the required vacuum degree. [0004] Chinese invention patent application number: 2014101045211 discloses a R...

AI Technical Summary

Problems solved by technology

Although the invention has a simple structure, is easy to use, has high stability during operation, and generates little vibration, the invention, like most existing vacuum pump units, has a relatively large overall structure, a heavy pump body, and a fixed base. Installed in a certain place, only one place can be pumped. When it needs to be used in other places, the whole unit needs to be disassembled and reinstalled. After disassembling and installing many times, it is easy to affect the sealing performance of the pump unit and shorten the service life. Time-consuming and labor-intensive, extremely inconvenient

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