What is the basic working principle of the screw pump

Screw pump is the use of screw rotation to suction and discharge liquid. The figure shows a cross-sectional view of a three-screw pump. In the picture, the middle screw is the active screw which is driven by the prime mover. The screw on both sides is the driven screw, which rotates reversely with the active screw. Active screw driven screw thread are double-headed thread. Due to the mutual engagement of the screws and the close cooperation of the screw with the inner wall of the liner, one or more sealed spaces are separated between the suction and discharge of the pump. As the screw is rotated and engaged, these sealed spaces are constantly formed at the suction side of the pump, sealing the liquid in the suction chamber therein and continuously displacing in the axial direction of the screw from the suction chamber to the discharge end to be closed in the respective spaces Continued discharge of liquid, like a nut in the screw rotation is constantly moving forward, as the case, which is the basic working principle of the screw pump. Screw pump features: screw pump loss, good economic performance. High pressure and uniform, uniform flow, high speed, with the original direct motivation. Screw pump can transport lubricating oil, conveying fuel, conveying a variety of oils and polymers for conveying viscous liquid. The working principle of the screw pump is that when the screw pump is working, the liquid is sucked into the sealed space enclosed by the screw thread and the pump shell. When the driving screw rotates, the screw pump sealing volume increases the pressure of the screw pump under the extrusion of the screw thread, And move in the axial direction. Since the screw is rotating at a constant speed, the flow of liquid out is also uniform. Delivering High Viscosity Media: Depending on the pump size, media with a viscosity of centipoise can be delivered. Medium containing particles or fibers: The particle diameter can be 30mm (not exceeding rotor eccentricity). The fiber length can be 350mm (equivalent to the pitch of 0.4 rotor). Its content is generally up to 40% of the media pit, the medium if the solid matter is a fine powder, the maximum content of up to 60% or more can also be transported. Requires delivery pressure is stable, the inherent structure of the medium is not damaged, the selection of single screw pump ideal delivery. Rotor Pump Related Articles Reading: Swing Rotor Pump Structure Principle Rotor Pump Range Introduction High Viscosity Rotor Pump Safe Operating Procedure

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