Double-acting rotor pump double flow stator

Abstract

The invention relates to a double-channel stator for double-acting rotor pumps. The stator has a two-layer internal and external structure. The external layer of the stator is provided with two central-symmetric external inlets and two central-symmetric external outlets; the external inlets and outlets are uniformly distributed in the external circumference of the stator in interval. The internal layer of the stator is provided with internal inlets and outlets which respectively communicate with and correspond to the external inlets and outlets; the internal inlets have a larger area than that of the external inlets; the internal outlets have a larger area than that of the external outlets. The beneficial effects of the stator are as follows: (1) the inlet flow area is increased, thus decreasing the medium-transmission speed, improving the pump suction performance and reducing the hydraulic loss of mediums; (2) the transmission efficiency is improved by reducing the outlet resistance in the transmission process.

Description

technical field [0001] The invention relates to a stator for a volumetric double-acting rotor pump. Background technique [0002] The rotor of the volumetric double-acting rotor pump completes two oil suctions and two oil pressures per revolution. The double-acting vane pump is used as an example to illustrate the working principle of the double-acting rotor pump: figure 1 , figure 2 As shown, among them, 4-stator, 5-rotor, 6-channel, 7-pump body, the stator and the rotor are concentric, the stator is a single-layer structure, and its inner surface is composed of two large-radius arcs and two small-radius arcs Composed of four transition curves, two oil suction ports a and two oil pressure ports b are arranged obliquely on the stator, and the oil inlet and oil outlet are respectively connected to the oil suction ports and pressure oil ports on the stator. mouth connecting channel. When the rotor rotates clockwise, the blades at the upper left and lower right corners move...

AI Technical Summary

Problems solved by technology

Since the internal and external dimensions of the opening are the same, it cannot relieve the import and export resistance. The resistance at the entrance is large, the flow rate is high, the transport medium is prone to cavitation, the hydraulic loss is large, and the resistance at the exit is also large, and the medium transmission efficiency is not high.

Images