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Integrated impeller motor for driving axial-flow pump

A technology that integrates impellers and axial flow pumps, applied in axial flow pumps, machines/engines, pumps, etc., can solve problems such as high cost and complex structure, and achieve reduced manufacturing costs, small axial footprint, and improved reliability Effect

Inactive Publication Date: 2009-09-16
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the above pumps is still relatively complicated and the cost is high

Method used

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  • Integrated impeller motor for driving axial-flow pump
  • Integrated impeller motor for driving axial-flow pump
  • Integrated impeller motor for driving axial-flow pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The 6 / 4 structure switched reluctance motor is taken as an example for illustration, and the implementation manners of other salient pole rotor motors are the same.

[0011] figure 1 It is a cross-sectional schematic diagram of an integrated impeller 6 / 4 structure switched reluctance motor for driving an axial flow pump. The radial stator 1 and rotor core 2 in the figure are made of laminated silicon steel sheets, which are 6-teeth and 4-teeth structures respectively. figure 2 It is a structural schematic diagram of the stator of the integrated impeller 6 / 4 structure switched reluctance motor for driving the axial flow pump of the present invention, wherein each stator tooth is inclined 30 degrees along the axial direction. image 3 It is a schematic diagram of the rotor structure of the integrated impeller 6 / 4 structure switched reluctance motor for driving the axial flow pump of the present invention, wherein each rotor tooth is tilted and twisted 30 degrees along th...

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Abstract

The invention discloses an integrated impeller motor for driving an axial-flow pump, and belongs to the field of axial-flow pump driving motors. The structure of the integrated impeller motor comprises a radial stator, a rotor core and a stator winding, wherein the stator tooth on the radial stator and the rotor tooth on the rotor core are all obliquely reversed at the same angle in the same axial direction; air gaps between two polar faces when a stator tooth pole and a rotor tooth pole are overlapped are equal everywhere; the oblique rotor tooth on the rotor is equivalent to an impeller of the pump, and action force generated on liquid to be delivered drives the liquid to advance along a shaft on the one hand and rotate along the rotor tooth on the other hand; and after the liquid to be delivered comes out of the motor, the rotational motion of the liquid is eliminated by a guide vane and changed into axial motion, and the kinetic energy of the rotational motion is converted to pressure energy to complete the function of the axial-flow pump. The integrated impeller motor integrates a salient pole rotor motor driving the axial-flow pump and the impeller into a whole, and has small axial occupied area and high reliability.

Description

technical field [0001] The invention relates to an integrated impeller motor for driving an axial flow pump, belonging to the field of driving motors for axial flow pumps. Background technique [0002] In some special environments, such as the aerospace environment, the reliability and volume requirements of the pump are relatively high. The driving motor is the key component of the pump, so there is an urgent need to develop a pump driving motor with a compact structure and high reliability. At present, most of the motors used to drive pumps use induction motors. The induction motor has a small starting torque and a large starting current, and the rotor has guide bars, which may lead to an open circuit fault of the rotor guide bars, and when the load current of the motor is too large, it is easy to burn out. Motors such as switched reluctance motors, double salient motors, flux switching motors, and induction motors are used as drive motors for pumps. The rotors of these ...

Claims

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Application Information

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IPC IPC(8): H02K1/12H02K1/22F04D3/00
Inventor 陈小元邓智泉王晓琳蔡骏
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS