Chemical process pumps are equipment used to transport chemical liquids. Their working principle is to generate kinetic energy to suck in and push liquids out through the movement of rotating impellers or screws. Chemical process pumps usually consist of a pump body, an impeller or screw, a shaft and a seal.
The basic categories include the following:
Centrifugal pump: The centrifugal pump uses the rotation of the impeller to suck the liquid from the center under the action of centrifugal force, and then discharge it at a high speed. Centrifugal pumps are divided into single-stage centrifugal pumps and multi-stage centrifugal pumps. Choose the appropriate model according to the work requirements.
Screw pump: A screw pump sucks liquid from the inlet and pushes it to the outlet through the rotation of two or more screws. Screw pumps are suitable for transporting high-viscosity liquids, liquids containing solid particles, and sensitive and fragile liquids.
Micropumps: Micropumps are mainly used in applications that require precise metering and delivery of small flows, such as laboratories, chemical processing, etc. Micropumps usually use plunger, peristaltic or needle valve working principles.
Magnetic pump: The magnetic pump isolates the driving device from the pump body through a magnetic coupling device to avoid the risk of leakage. Magnetic pumps are suitable for special process requirements that need to avoid liquid leakage, such as transporting corrosive, flammable, explosive or toxic and harmful liquids.
Peristaltic pump: The peristaltic pump uses the principle of peristalsis to push the liquid out through the extrusion of the peristaltic pump head. Peristaltic pumps are suitable for applications sensitive to liquid shear and have good metering performance and reliability.
In addition to the above basic classifications, there are many other types of chemical process pumps, such as diaphragm pumps, gear pumps, plunger pumps, etc., which are designed according to their working principles and the needs of specific application fields. When selecting a suitable chemical process pump, factors such as liquid properties, process requirements, temperature, pressure, etc. need to be considered, and appropriate models and materials should be selected according to specific requirements.