Stainless steel screw pump market gradually achieve growth

11 - 03

stainless steel screw pump market gradually achieve growth stainless steel screw pump is a single-screw transport pump, stainless steel screw pump is the main working parts of eccentric screw helix ( According to the rotor) And the inner surface is on the surface of the double spiral screw bushing ( According to the stator) 。 Its working principle is when the motor drives the pump shaft rotation, screw around the axis of rotation itself on the one hand, on the other hand it along the bushing inside surface rolling, then form a stainless steel screw pump seal chamber. Screw each week, liquid sealed cavity forward a pitch, with continuous rotation of the screw, liquid spiral way from a sealed cavity pressure to the other a sealed cavity, finally out of the pump body. Stainless steel screw pump is a new type of fluid conveying machinery, stainless steel screw pump has simple structure, safe and reliable work, convenient operation and maintenance, the fluid continuous uniform, stable pressure, etc. A use of the rotation of the screw to absorb liquid stainless steel screw pump, the most suitable for stainless steel screw pump suction line of viscous liquid. Stainless steel screw pump is the use of screw rotary to absorb liquid. Due to the mutual engagement of each screw and screw and the close coordination of the liner wall, between the inlet and outlet of the stainless steel screw pump, can be divided into one or more of the sealed space. With the rotation of the screw and the meshing, the sealed space in the stainless steel screw pump suction side form unceasingly, the liquid from the suction chamber seal in among them, and the suction chamber along the screw axial continuously goes on to the discharge end, will be closed in the space of the liquid discharge, like a nut in the screw rotation had been forward works, stainless steel screw pump work, after it was inhaled liquid into the thread and surrounded by the pump shell sealed space, when active screw rotation, the stainless steel screw pump seal volume under the extrusion of screw tooth improve stainless steel screw pump pressure, and move along the axial direction. Because the screw is constant speed rotation, so the liquid flow is uniform. Stainless steel screw pump characteristic is: the loss of the screw pump is small, good economic performance. High pressure and uniform, uniform flow, high rotating speed, and prime mover straight league. Stainless steel screw pump can be transported conveying lubricating oil, fuel oil, conveying various oil and polymer, stainless steel screw pump for conveying viscous liquid. Stainless steel screw pump transporting high viscosity medium: depending on the size of the stainless steel screw pump can transport viscosity - from 37000 200000 centipoise medium. Medium: particles contain particles or fiber diameter can be the 30 mm ( No more than the rotor eccentricity) 。 Fibre length can be 350 mm ( Quite a 0. Four rotor pitch) 。 Stainless steel screw pump pit in general to medium content of 40%, if the solid medium for fine powder shape, the highest content of 60% or higher can also transport. Require delivery pressure stability, inherent structure destroyed, medium selection of single screw pump delivery is most ideal. Stainless steel screw pump pump body violent vibration or noise: causes: stainless steel screw pump installation not firm or the pump installation is too high; Motor bearing damage; Stainless steel screw pump shaft bending or different heart and motor spindle, not parallel, etc. Methods: steady water pump or reduce the water pump installation height; Replace the motor ball bearings; Correct bending pumps spindle or adjust the relative position of the pump and motor. The shaft or motor bearing overheating: reason: lack of lubricating oil or bearing fracture, etc. Methods: filling lubricating oil or replace bearing. Stainless steel screw pump water: reason: stainless steel screw pump, pump body and suction pipe not filled with water; Dynamic water level below the pump filter tube; Suction pipe burst, etc. Stainless steel screw pump sealing surface between screw and shell is a space curved surface. Exist on the surface of the sealing section, such as ab or DE and screw groove part of the form many the gap of the triangle ABC, def. These triangular gap formation fluid channels, make active screw groove with A driven screw groove on the connected to B and C. And groove B, C and along their spiral around to the back, and, respectively, and on the back of the groove connected to D and E. Due to the tank D, E and F ( It belongs to another head spiral) Links up the seal surface, there are three similar to the positive Angle gap a 'b' c ', therefore, D, F, E will also is same. So, groove ABCDEA also comprise a 'up' in the shape of a sealing space ( If use single thread, axial disc groove will arrange spare screw, connecting the suction PaiKou, unable to form a seal) 。 It is not hard to imagine that in this kind of screw, would be a lot of 'up' of the independent sealed space, each of the sealed space occupied the axial length equals the tired stem lead t. Therefore, in order to make the screw suction and discharge of oil can be separated, the length of the screw thread of at least than a lead.

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