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[Chemical Knowledge]：The working principle of Roots vacuum pump

Read： 580 Time：13months ago Source：Transform the World with Simplicity

Roots vacuum pump is an important equipment widely used in the field of vacuum technology. Its principle is based on the working principle of Roots double impeller, which can realize high-efficiency vacuum extraction. Below, this article will introduce the working principle and application of Roots vacuum pump in detail.

1. the working principle of Roots vacuum pump

Roots double impeller is the core element of Roots vacuum pump, generally composed of a fixed outer rotor and an inner rotor. The gap between the outer rotor and the inner rotor is very small, usually only a few 1% to several 1‰ millimeters. When the Roots vacuum pump is started, due to the gear cooperation between the outer rotor and the inner rotor, the inner rotor will be guided by the outer rotor. Rotate around its own axis and push the gas to the discharge port of the Roots pump. The rotation process of the inner rotor and the outer rotor can effectively extract gas, thereby forming a vacuum background.

Roots vacuum pumps usually need to be used in conjunction with other vacuum equipment, such as mechanical pumps or oil-sealed pumps. When the Roots vacuum pump is turned on, the mechanical pump or oil seal pump first pumps out most of the gas, and then the Roots vacuum pump works in the high vacuum range. This extraction process can effectively reduce the air pressure, so as to achieve vacuum extraction.

2. Roots vacuum pump application

Roots vacuum pump is mainly used in high purity gas and strong acid and alkali environment extraction. In the chemical and electronics industries, Roots vacuum pumps are often used in manufacturing processes, such as material handling and heat treatment and manufacturing of electronic equipment. In the field of engineering, Roots vacuum pumps are also widely used in vacuum transmission systems, such as vacuum motors, vacuum drying ovens, and vacuum distillation equipment.

summary

This paper introduces the working principle and application of Roots vacuum pump in detail. The high efficiency and versatility of Roots vacuum pumps make them one of the indispensable equipment in the field of vacuum technology. I believe that with the continuous development of Roots vacuum pump technology, its application field will be more extensive, providing a more stable and efficient vacuum extraction scheme for industrial production and scientific research.

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