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

the cause of fluorine plastic pump cavitation

speaking of fluorine plastic pump, everybody is not strange, plastic centrifugal pump is commonly used in industrial production of corrosion-resistant centrifugal pump, fluorine plastic centrifugal water 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 centrifugal water pump cavitation often hear, then what's the reason that produce?

fluoride plastic pump cavitation phenomenon is due to the liquid to be delivered in the temperature of saturated steam pressure equal to or below the pump pressure at the entrance of partial vaporization, noise and vibration caused by pump, centrifugal pump cavitation phenomenon is normal operation is not allowed to happen. Avoid cavitation phenomenon is the key to the installation height of the pump to the right, especially when transporting temperature higher volatile liquid, accelerated the damage of materials at the same time, shorten the service life of the parts, therefore, must limit the height of the pump, to prevent liquid evaporation in great quantities, lest produce cavitation phenomenon.

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 pump inlet is unlikely to be fully vacuum, etc.

to make the pump cavitation, must make the liquid pump impeller inlet unit weight than vaporization pressure surplus energy, when the centrifugal 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 the pump rotation, bubbles into the high, due to the differential effect, compression of air bubbles burst and condenses again, at the moment of condensation, particle impact each other, producing a high partial pressure.

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, ZAO fluoride plastic pump, 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.

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