SU1608370A1 - Low-power centrifugal electric pump - Google Patents

Abstract

The invention makes it possible to reduce material consumption, simplify the design, increase reliability and increase efficiency. The electric pump contains a stator winding 11 and a rotor 7 with permanent magnets 10 which act as superchargers. When the pump is operating, the fluid enters the working channels 8 formed by the magnets 10 and is pumped to the consumer. The use of magnets 10 as blowers reduces the number of components and reduces the weight of the pump. 4 il.

Description

Phage. 2

The invention relates to pumping engineering, in particular to low-power electric pumps, and can be used in pressurized and submersible pumps; Ah small performance and head.

The purpose of the invention is to reduce material consumption and simplify the design, increase reliability and efficiency by reducing the number of rotor components and its mass.

Figure 1 shows the pump, a longitudinal section; figure 2 - section aa in figure 1; FIG. 3 shows the rotor compartment of a pump with a PC mount with two pairs of poles; figure 4 - the same, with a rotor with one pair of poles.

The pump includes a housing 1 with a partition 2, hermetically separating the pump to the stator section 3 and the cylindrical rotor section 4 with the inlet end 5 and the radial 6 discharge pipe, the assembled rotor 7 with centrifugal discharge channels 8, sleeve 9 and permanent magnets 10, mounted in the rotor compartment 4, the stator winding 11 and partially covering the rotor compartment 4 in the area of the rotor 7 magnetic circuit 12 installed in the stator compartment 3. The diameter of the sleeve 9 of the rotor 7 is smaller than the outer diameter of the magnets 10, dnie performed prismatic and mounted on the hub 9. Centrifugal discharge channels 8 are formed between the magnets 10.

The pump works as follows.

When turning on the electric drive, the rotor 7 with permanent magnets 10 rotates under the influence of an electromagnetic field,

3 11 12 A., .L

Fig 1

generated by the stator winding 11. Fluid through the inlet pipe 5 enters the centrifugal channels 8 and then the magnets 10, which play the role of centrifugal vanes, is injected into the pipe 6. The lubricating surfaces of the rotor 7 are lubricated by the pumped liquid. Normal operation of the pump is ensured by optimizing the diameter of the sleeve 9 of the rotor 7.

Reducing the number of components and the mass of the pump allows to simplify its design, reducing the consumption of materials and increasing its reliability and efficiency.

Claims (1)

Claims of the Invention Low power centrifugal electric pump, comprising a housing with a partition, hermetically separating the pump into the stator section and the cylindrical rotor section with face and radial discharge nozzles, assembly rotor with centrifugal discharge channels, sleeve and permanent magnets installed in the rotor section, stator winding and a magnetic core partially covering the rotor compartment in the rotor zone, installed in the stator compartment, characterized in that, in order to reduce the material The low intensity and simplicity of the design, increase reliability and efficiency by reducing the number of rotor components and its mass, the diameter of the rotor hub is smaller than the outer diameter of the magnets, the latter are made prismatic and mounted on the hub, and the centrifugal discharge channels are formed between the magnets. ten Editor O. Golovach Compiled by S.Kosov Toh) od M.Morental FIG. four Proofreader S. Shekmar