Induced Electromagnetic Pump Rotating Magnetic Field
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Solution Overview
Problem
Existing electromagnetic pumps using rotating magnetic fields face issues with vibrations, noise, and maintenance challenges, particularly when handling liquid metals, and require complex sealing and rotor components.
Innovation Solution
An induced electromagnetic pump design that utilizes a rotating magnetic field without direct contact with the fluid, featuring a flow channel pipe with a fluid inlet and outlet in the same direction and a series of electromagnetic coils connected to three-phase power to generate a rotating magnetic field, eliminating the need for mechanical components and minimizing vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a mechanical pump uses a propeller in direct contact with the fluid, then high efficiency is achieved, but vibrations and noise are generated
Solution Approach 1:
The patent replaces the mechanical propeller system with an electromagnetic pump system that uses electromagnetic fields to move the liquid metal. The electromagnetic pump includes coils that generate magnetic fields and a liquid metal flow path, eliminating mechanical contact between the propeller and fluid, thereby removing the source of vibrations and noise while maintaining pumping efficiency
2Productivity
If a mechanical pump uses a propeller in direct contact with the fluid, then high efficiency is achieved, but sealing and corrosion problems occur with liquid metals
Solution Approach 1:
The electromagnetic pump eliminates mechanical sealing requirements by using electromagnetic fields instead of mechanical contact. The liquid metal flows through a flow path without contacting any rotating mechanical parts, eliminating corrosion of propellers and sealing issues that plague mechanical pumps when handling reactive liquid metals
3Power
If electromagnetic coils are arranged on both surfaces of the flow channel pipe, then a rotating magnetic field is generated, but device complexity increases
Solution Approach 1:
The patent divides the electromagnetic coil system into multiple segments arranged at specific intervals around the flow channel pipe. Instead of requiring continuous coverage, coils are placed at discrete positions (e.g., three coils at 120-degree intervals for a three-phase system), which simplifies the overall structure while still generating an effective rotating magnetic field through phased activation of these segmented coils
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 solution provides a stable, low-noise, and maintenance-free system for transferring conducting fluids like liquid metals, enabling efficient and reliable operation with reduced equipment size and complexity.
Implementation Method 1
a plurality of electromagnetic coils arranged at certain intervals on one surface of the flow channel pipe and connected to U-phase power, V-phase power, and W-phase
Implementation Method 2
an induced electromagnetic pump configured to transfer a conducting fluid by using a rotating magnetic field
Data Source
AI summary
Provided is an induced electromagnetic pump using a rotating magnetic field. The induced electromagnetic pump includes a flow channel pipe through which a conducting fluid passes, a fluid inlet formed at an outer surface of the flow channel pipe in one direction and through which the conducting fluid flows into the flow channel pipe, a fluid outlet formed at the outer surface at which fluid inlet is formed in the same direction thereas and through which the conducting fluid is discharged from the flow channel pipe, and a plurality of electromagnetic coils arranged at certain intervals on one surface of the flow channel pipe and connected to U-phase power, V-phase power, and W-phase.