Rotating Magnet Electromagnetic Pump for Low-Voltage Liquid Metal Flow

Solution Overview

Problem

Electromagnetic pumps for liquid metal pose safety hazards due to high voltage requirements and electrical energy loss when generating alternating magnetic fields.

Innovation Solution

An electromagnetic pump design that uses a magnetic assembly driven by an electric motor to generate a varying magnetic field, reducing electrical energy loss and increasing conversion efficiency by employing a rotating magnet configuration with alternating magnetic poles, eliminating the need for high voltage and enhancing safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If an alternating current is introduced into a coil to generate an alternating magnetic field, then the liquid metal can be driven to flow in an expected direction, but the pump presents safety hazards due to higher requirements on current and voltage

Engineering Contradiction:

Improvefluid flow capabilityVSAvoidsafety

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent replaces the electromagnetic coil system with a mechanical rotating magnet system. The magnetic assembly includes permanent magnets arranged in alternating polarity patterns that rotate mechanically to generate the alternating magnetic field, eliminating the need for high-current coils and high-voltage power supplies while maintaining the ability to drive liquid metal flow

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a rotating magnetic assembly that dynamically generates the alternating magnetic field through mechanical rotation. The drive mechanism rotates the magnetic assembly at controlled speeds to produce the time-varying magnetic field required for electromagnetic pumping, replacing static electromagnetic coils with a dynamic mechanical system

Inventive Principle:

Principle #15Dynamics

2Productivity

If an alternating current is introduced into a coil to generate an alternating magnetic field, then the liquid metal can be driven to flow in an expected direction, but the pump presents safety hazards caused by high voltage conversion

Engineering Contradiction:

Improvefluid flow capabilityVSAvoidsafety hazards from high voltage

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the electromagnetic coil system with a mechanical rotating magnet system. The magnetic assembly includes permanent magnets arranged in alternating polarity patterns that rotate mechanically to generate the alternating magnetic field, eliminating the need for high-current coils and high-voltage power supplies while maintaining the ability to drive liquid metal flow

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent converts the harmful high-voltage electromagnetic field generation into a safe mechanical rotation process. By using mechanically rotated permanent magnets instead of high-voltage coils, the system eliminates electrical hazards while maintaining the beneficial alternating magnetic field effect needed for pumping liquid metal

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The design achieves a safer and more reliable operation with reduced electrical energy loss and higher conversion efficiency, generating a stronger magnetic field without high voltage, thus improving safety and reliability.

Implementation Method 1

an electromagnetic pump is a pump in which an energized fluid in a magnetic field flows in a certain direction under the influence of electromagnetism. The electromagnetic pump is an apparatus that utilizes interaction of the magnetic field and a current in a conductive fluid to cause the fluid to be subjected to electromagnetism to generate a pressure gradient

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

utilizes interaction of the magnetic field and a current in a conductive fluid to cause the fluid to be subjected to electromagnetism to generate a pressure gradient, thereby promoting motion of the fluid

Methodology Applied

Scientific EffectLorentz force: Lorentz Force

Data Source

PatentEP3487051B1Electromagnetic pump

Publication Date: 2023.12.13 ALEADER VISION TECH

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AI summary

The present disclosure relates to a technical field of fluid delivering. An electromagnetic pump is provided. The electromagnetic pump includes a drive mechanism and a magnetic assembly, where the magnetic assembly is configured to be driven by the drive mechanism to generate a varying magnetic field.