【Learn Ethylene Together】Five questions per day to easily learn about ethylene 41
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【Learn Ethylene Together】Five questions per day to easily learn about ethylene 41 7. Briefly explain the working principle of screw pumps. Answer: A screw pump consists of a pump casing and one or more screws. The interlocking screws are used to discharge the liquid. When a higher pressure is required, a longer screw can be used
When a screw pump is in operation, the liquid is drawn in and enters the sealed volume enclosed by the threads and the pump casing. As the driving screw rotates, the sealed volume of the screw pump increases due to the compression exerted by the threads, which in turn generates pressure and causes the liquid to move axially. Since the screw rotates at a constant speed, the flow rate of the liquid output is also uniform.
A screw pump is a positive-displacement pump with a unique design, mainly consisting of a drive motor and reducer, a coupling and connecting rod box, a stator, and a rotor. During operation, the rotor is driven by a motor and rotates in a planetary manner within the stator; the elastic bushings of the rotor and stator work together to create several separate, sealed chambers. Due to the rotation of the rotor, the sealing cavity moves axially from the suction end toward the discharge end, and the medium is continuously transported within the cavity from the suction end to the discharge end.