Structure and Performance Characteristics of 3G Small Flow Three Screw Pump

3G small flow three screw pump is a screw-type displacement pump. In the triple-screw pump, due to the main screw and the driven screw on the spiral groove intermeshing and their three holes with the inner surface of the bushing to pump inlet and outlet to form a number of dynamic seal chamber, the dynamic seal Room will continue to move the liquid from the pump inlet to the pump outlet and step up the delivered liquid. Thus forming a continuous, smooth, axially moving pressure fluid. 3G low flow three screw pump fluid is solid, non-corrosive oil and similar lubricants liquid, viscosity of 1.2 ~ 100oE (3.0 ~ 760cst), high viscosity liquid viscosity can be reduced by heating Transport, the temperature does not exceed 150 ℃. 3G small flow three screw pump is widely used in machinery, petroleum, steelmaking, power generation, chemical fiber, food, shipbuilding and other industries. Structure and performance characteristics of 3G low-flow three-screw pump 1. Simple structure: The pump itself consists of only three screws, but a variety of structures are formed. Generally, the pump and bushing of the pump of 0.2-6.5m3 / h are combined into one Horizontal installation, shaft seal for the mechanical seal. Pump bushing above medium flow is fixed to the pump body as a separate part. Large flow pump made of double suction structure. Shaft according to the different media have a mechanical seal and packing seal two. The prime mover for marine pumps is AC marine motor. 2, long life: 3G small flow three screw pump main screw is driven by a motor. The main, from the screw, between the screw and the bushing has a layer of film protection, due to pump mechanical friction is extremely small, semi-permanent life expectancy. 3, the liquid in the pump for axial uniform axial linear motion, so the pressure pulsation small, stable flow, low noise, due to the rotation part of the small inertia, the starting torque and vibration is small. 4, with high suction capacity. 5, in order to ensure the safety of pumps, motors and piping systems, medium-volume screw pumps are equipped with safety valves above, when the pressure exceeds the safety valve set pressure, high-pressure oil will return to the pump inlet.