Vacuum pump overview

Define

Vacuum pump is a device to use a variety of methods in a closed space, improve and maintain a vacuum .Vacuum pump is generally made from cast iron, but in use process often encounter conveying chemicals and high temperature gas, the vacuum pump to ask for the resistance to corrosion and high temperature.This type of vacuum pump with stainless steel, ceramics, metal and other special materials to make the flow components can meet the requirements.In modern industrial production, a lot of links to vacuum, vacuum pump is as a kind of common base type machinery is widely used in machinery, petroleum, chemical, electric power, pharmacy, food, ceramics, sugar, printing, dyeing, metallurgy, plastics, and other industries.

Classification

According to its working principle, basically divided into the gas pump and gas trapping two types of pump.The gas pump include: water ring vacuum pump (liquid ring vacuum pump);Rotary vane vacuum pump.The type vacuum pump;Dry scroll vacuum pump ;Reciprocating vacuum pump;The roots vacuum pump.Rotary piston vacuum pump;Trochoid vacuum pump;Molecular pump;Traction molecular pump;Composite vacuum pump;Water jet vacuum pump;Gas injection pump;Steam jet pump;Diffusion pump, etc.Gas trap pump include: adsorption and cryogenic pump, etc.In the industrial application is one of the most water ring vacuum pump and rotary vane vacuum pump.According to the vacuum degree can be divided into: coarse vacuum, high vacuum, ultra high vacuum three categories.

Application

Pharmaceutical, food processing, vacuum drying and packing;Vacuum extrusion and molding of plastic, rubber industry,Liquid degassing;Waterworks vacuum water diversion;Chemical industry, textile industry of vacuum filter, dipping and distillation;The condenser vacuum of the electric power industry;The coal industry vacuum flotation and filtration;Laboratory, metallurgy, chemical industry, electronics, electric light source such as vacuum.