Pump industry suppliers to tell you: the cause of fluorine plastic pump cavitation

the cause of fluorine plastic pump cavitation

speaking of fluorine plastic water pump, everybody is not strange, plastic fluoride plastic pump is commonly used in industrial production of corrosion-resistant fluoroplastic pump, fluorine plastic fluorine plastic pump is suitable for conveying acid and alkali, salt and other corrosive solvents, temperature can reach 150 degrees, get the user's consistent high praise, fluorine plastic fluorine plastic pump cavitation often hear, then what's the reason that produce?

fluorine plastic pump cavitation phenomenon is due to the liquid to be delivered in transporting temperature saturated vapor pressure is equal to or below the pump pressure at the entrance of partial vaporization, cause the pump noise and vibration, serious when, the efficiency of the pump flow rate and pressure head and significant decline, obviously, the cavitation phenomenon is fluorine plastic pump normal operation is not allowed to happen. Avoid cavitation phenomenon is the key to the installation height of the pump to correctly, especially when conveying high temperature easy volatile liquid, more attention should be paid to.

fluoride plastic pump suction center to reservoir between liquid level height is called suction height, conceive of impeller inlet as an absolute vacuum, suction line resistance is zero, the liquid surface as a standard atmospheric pressure, the theory of geometric height is 10. 33 meters, however, because there are all sorts of resistance in the pump suction pipe, the impeller and the water pump inlet is unlikely to be fully vacuum adverse factors, such as plus pump inlet location must be NPSH, so general centrifugal pump suction height is not more than 4, 5 meters.

to make the pump cavitation, must make the pump impeller inlet unit weight exceeds evaporation of liquid pressure energy of surplus, when fluoride plastic water pump suction height and the liquid temperature is higher, the suction pressure is less than or equal to the saturated vapor pressure of liquid is under the environment of the liquid in the pump inlet boiling evaporation, in the pump shell to form a space filled with steam, with pump is rotating, the air bubbles into the high.

pump industry suppliers is the collection scientific research, design, production, management, services for the integration of production enterprises, the products are widely used in petroleum, chemical industry, metallurgy, electric power, mining, coking, medicine, printing and dyeing, food, paper making, environmental protection and other fields. The company has a modern pump performance testing means, equipment is excellent. Main production ZA fluorine plastic pump, ZAO, ZE petrochemical pump, CZ chemical process pump, IH chemical pump, forced circulation pump, SPP chemical mixed-flow pump of 28 kinds of material, 30 series more than 1000 specifications special alloy chemical pumps, valves, stainless steel pipe, fluorine pipe parts. 。