Screw pump

Screw pump, also known as "screw pump" and "Archimedes screw pump". A pump that uses the rotation of spiral blades to spiral up the water body in the axial direction. It is composed of shaft, spiral blade and shell. When pumping water, place the pump obliquely in the water so that the inclination angle of the main shaft of the pump is smaller than the inclination angle of the spiral blade, and the lower end of the spiral blade is in contact with the water. When the prime mover drives the screw pump shaft to rotate through the speed change device, water enters the blades and rises along the spiral flow path until it flows out. The structure is simple, easy to manufacture, large flow, low head loss, high efficiency, easy to repair and maintain, but low lift, low speed, and a variable speed device is required. It is mostly used for irrigation, drainage, and lifting of sewage and sludge.
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