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What are the functions of self-cleaning in centrifugal pumps? Rinsing, cooling, lubrication, sealing.
Self-flushing: The medium delivered by the pump itself is forced into the sealing chamber through small holes in the end-face seal gland. Mixing with the medium inside the pump is called self-cleaning. Pumps with self-cleaning functionality can be used to transport media that are generally at low temperatures (＜100℃) and are relatively clean; these media are usually light oils or water. Put simply, self-flushing of mechanical pumps cannot be used for liquids with high temperatures and high viscosity, as such liquids can damage the pump when they enter its interior; high viscosity also makes it difficult for these liquids to exit the pump. Self-flushing effect: There are generally four types of self-flushing effects. The first one is the flushing effect, which removes impurities resulting from the friction between the rotating ring and the stationary ring ； The second is the lubricating effect; it maintains a layer of liquid film between the sealed surfaces, which serves as a lubricant ； The third function is cooling: it removes the heat generated by friction between the moving ring and the stationary ring during operation, thereby reducing the temperature of the sealing elements and extending their service life ； The fourth function is sealing: it prevents air from outside the pump from entering the pump, thus serving as a seal.
Reduce the temperature of the mechanical seal, lubricate it, and flush out impurities
Four functions: flushing, lubrication, cooling, and sealing
Self-flushing generally has four functions. The first one is the flushing function, which removes impurities resulting from friction between the rotating ring and the stationary ring； The second is the lubricating effect; it maintains a layer of liquid film between the sealed surfaces, which serves as a lubricant ； The third function is cooling: it removes the heat generated by friction between the moving ring and the stationary ring during operation, thereby reducing the temperature of the sealing elements and extending their service life ； The fourth function is sealing: it prevents air from outside the pump from entering the pump, thus serving as a seal.
Rinsing, cooling, lubrication, sealing.