Screw pump performance and use precautions

Screw pump flow and speed into a linear relationship, relative to the low-speed screw pump, screw pump with high speed although it can increase the flow and lift, but the power was significantly increased, high speed accelerated wear between the rotor and stator, must make Screw pump premature failure, and high-speed screw rotor rotor length is very short, easy to wear, thus shortening the life of the screw pump, reducer or stepless speed reduction mechanism to reduce speed, so exploration speed maintained at Sub-three hundred turn below the more reasonable range, and high-speed operation of the screw pump, the service life can be extended several times. Relatively speaking, the imported screw pump is well designed and of good material, but the price is higher, the service is not in place, the price of the accessory is high, and the ordering cycle is long, which may affect the normal operation of the production. Most of the domestic production of imported products imitation, product quality varies greatly in the choice of domestically produced products, considering its cost-effective time, the choice of low speed, long lead, transmission parts of good quality, long life rating of the product. Screw pump is a positive displacement rotary pump, when the outlet end is blocked, the pressure will gradually increase, so that the pressure exceeds the predetermined value .At this time the motor load increased dramatically. Transmission machinery parts load will exceed the design value, serious motor burn occurs, the transmission parts broken, in order to avoid damage to the screw pump, usually at the outlet of the three screw pump bypass relief valve installed to stabilize the outlet pressure, Maintain the normal operation of the pump. Screw pump will never allow the operation in the case of broken material, once occurred, the rubber stator due to dry friction, instantaneous heat generated and burned, so the grinder intact, grille smooth is the normal operation of the screw pump One of the necessary conditions, therefore, some screw pumps are still installed in the pump body off material shutdown device, when a break occurs, due to the self-priming screw pump has the characteristics of the cavity will produce a vacuum, the vacuum device will screw pump Stop working "The pursuit of science and technology, quality of survival, in good faith accounting for the market, product development and" pursuit of the enterprise, created a high sense of responsibility and innovation in the spirit of innovation.

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