Overview of Vacuum Pumps

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Overview of Vacuum Pumps A vacuum pump is a device that uses mechanical, physical, chemical, or physicochemical methods to evacuate a container in order to create and maintain a vacuum environment. Its core function is to continuously remove the gas from the container by changing the volume of the pump chamber, utilizing the principle of jets or molecular motion, thereby creating the desired level of vacuum in a closed space. Vacuum pumps do not exist in isolation; rather, they form a complete vacuum system together with vacuum chambers, valves, measuring instruments, and connecting pipelines. Among them, the change in the pump chamber volume is usually achieved through mechanical motion, while the jet principle involves high-speed flowing fluid carrying away the gas. The mechanism of molecular motion relies on the differences in the movement of gas molecules under different pressures to achieve the pumping effect. This system is widely used in industries such as electronics, metallurgy, chemicals, food, machinery, pharmaceuticals, and aerospace, supporting a variety of needs ranging from basic research to high-end manufacturing.