Animation of the working principle of twin-screw pumps

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A twin-screw pump is a externally meshing screw pump that uses two screws that mesh with each other without coming into contact to pump liquids. As a double-suction, non-enclosed twin-screw pump, the driving screw, which extends outside the pump at one end, is driven by a prime mover. The driving screw and the driven screw have threads with opposite rotation directions; the screws fit tightly against the pump body, and the driven screw is rotated by the driving screw through synchronous gears. The suction chamber inside the pump must be tightly separated from the discharge chamber; therefore, the gap between the pump body and the outer surface of the screw, as well as the gap between the screws themselves, should be as small as possible. At the same time, seals are formed between the screw and the pump body, and between the screws themselves, to ensure airtightness – otherwise, liquid might flow back through these gaps. The 810 video is for educational purposes only; the copyright belongs to the producer. It’s available by replying to this post! ! ! !