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High-temperature liquid metal magnetic force driving pump

A magnetic drive pump, liquid metal technology, applied in the direction of electrical components, electromechanical devices, etc., can solve the problems of reliability and life limitation, high temperature demagnetization, etc., to increase the maximum pressure head, increase the length of the magnetic action section, and save costs and space effects

Active Publication Date: 2012-07-25
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the permanent magnet strength of the permanent magnet electromagnetic pump cannot be changed arbitrarily, and there is high temperature demagnetization phenomenon, its reliability and life are limited by temperature.

Method used

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  • High-temperature liquid metal magnetic force driving pump
  • High-temperature liquid metal magnetic force driving pump
  • High-temperature liquid metal magnetic force driving pump

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Embodiment Construction

[0018] Such as figure 1 , 2 , 3, the embodiment of the present invention includes: a rotating motor and a pump body, the pump body includes a wound rotor 3, a pump channel flow channel 6 (using a flat shape), a pump body inlet section 5, a pump body outlet section 7, an inlet transition Section 10, outlet transition section 10', inlet runner 11 and outlet runner 12. The wound rotor with the mainstream current is installed on the weighing cylinder 2 connected with the shaft 1 of the squirrel-cage rotating motor. Eight magnetic poles 3 are installed on the wound rotor, and the magnetic poles are provided with copper conductors. When the conductor is excited, the direct current direction of the adjacent magnetic poles 3 is opposite, so that the polarities of the adjacent magnetic poles 3 are opposite, forming the effect of N and S poles arranged alternately; when the liquid metal at high temperature (>300°C) enters through the inlet section 5 of the pump body, it bifurcates int...

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Abstract

The invention provides a high-temperature liquid metal magnetic force driving pump, comprising a motor, a pump channel runner, a winding rotor and the like. High-temperature liquid metal enters a pump body magnetic action area, and the pump body magnetic action area is branched into a plurality of parallel flat runners; the parallel flat runners are spirally coiled by a plurality of circles around the winding rotor and then flow out a driving system; a linear rotor consists of 8 magnetic poles; the magnetism of the magnetic poles is excited by a copper belt with direct-current current and is wound on the magnetic poles; and switched-on currents of the adjacent magnetic poles are inverse, so as to generate an effect that N poles and S poles are alternatively arranged. The high-temperature liquid metal magnetic force driving pump has the beneficial effects as follows: the length and the area of a magnetic action section are increased due to the special structure of the runners, so that the driving efficiency of the device is greatly improved at the same motor power. Furthermore, a traveling wave magnetic field is generated by rotating the magnetic poles which are excited by the direct current, so that the traveling wave magnetic field is adjustable and is accurately controlled. The high-temperature liquid metal magnetic force driving pump is a high-efficiency magnetic force driving device applicable to the high-temperature liquid metal without a leakage problem.

Description

technical field [0001] The invention relates to a high-temperature liquid metal magnetic drive pump, which is used in industries such as nuclear energy and metallurgy, and belongs to the field of high-temperature fluid drive. Background technique [0002] Traditional mechanical pumps driving high-temperature liquid metals have disadvantages such as leakage, large wear, and high maintenance costs for complex structures. Therefore, the transmission of many liquid metals (especially liquid metals with high sealing requirements or strong corrosion) is driven by electromagnetic induction pumps. More electromagnetic induction pumps are three-phase induction electromagnetic pumps (including three-phase planar induction pumps, three-phase cylindrical induction pumps and three-phase spiral induction pumps), but three-phase induction electromagnetic pumps have large reactive power losses and low efficiency. , the long-term operation requires a huge amount of electric energy. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K44/06
Inventor 吕科锋朱志强黄群英高胜
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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