What are the differences between vacuum pumps and ordinary pumps?

A vacuum pump is a common and commonly used type of pump among many pump products. It is a device that improves, generates, and maintains a vacuum in a confined space by mechanical, physical, chemical or physicochemical methods , In metallurgy, chemical industry, food, electronic coating and other industries have a wide range of applications, then it and ordinary pump What is the difference between?

The most important feature of the vacuum pump is that it can form a vacuum, which can be seen from its name, which can not be achieved by ordinary pumps. This is the most important difference between the two. Vacuum pump is by a rotating wheel, rotating in the chamber, the chamber filled with fluid, the remaining cavity volume cyclical changes in the volume of the fluid under the action of periodic changes on the suction pipe gas Exhaled and inhaled. The most common vacuum pumps are dry screw vacuum pumps, water ring pumps, reciprocating pumps, slide valve pumps, rotary vane pumps, Roots pumps and diffusion pumps.

The following is to say ordinary pump. Centrifugal force, the centrifugal pump will be thrown out of the fluid at the same time the formation of negative pressure, and then the other fluid in its suction will continue to enter the pump body, pump impeller into the kinetic energy and potential energy driven by consumption of motor Electricity to complete. Vacuum pumps and ordinary pumps have their own characteristics, each with its own usefulness, I believe in science and technology continue to promote, they will and development of the better.