Fine Mist Generator With Magnetic Stabilization for High-Speed Rotation
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Solution Overview
Problem
Existing fine mist generators face challenges in increasing rotational speed and disk size to enhance mist generation capacity while maintaining stability and preventing shaft vibration and damage, leading to inefficiencies and reduced durability.
Innovation Solution
A fine mist generator design featuring a rotating body with a recessed portion and magnetic support system, utilizing first and second magnetic bodies to stabilize the rotating body at multiple locations, allowing for high-speed rotation and increased diameter, thus supporting the driving shaft and preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the rotational speed of the rotating disk is increased to enhance centrifugal force and fine mist generation capacity, then the productivity of fine mist is improved, but the reliability of the motor shaft and bearing deteriorates due to shaft vibration and precession
Solution Approach 1:
The patent introduces a counterweight member that rotates together with the rotating disk to balance the centrifugal force generated during high-speed rotation. This counterweight offsets the unbalanced forces that cause shaft vibration and precession, enabling the motor shaft and bearing to operate reliably at higher rotational speeds, thereby resolving the contradiction between improved productivity and maintained reliability.
Solution Approach 2:
The patent pre-balances the rotating disk by providing a counterweight member before operation begins. This preliminary balancing action prevents shaft vibration and precession from occurring during high-speed rotation, allowing the system to achieve high productivity without compromising the reliability of the motor shaft and bearing.
2Productivity
If the size of the rotating disk is increased to increase liquid supply capacity and fine mist generation, then the productivity is improved, but the stability of the rotating system deteriorates due to increased moment and shaft vibration
Solution Approach 1:
The counterweight member is designed to rotate with the enlarged rotating disk and provide balancing centrifugal force that counteracts the increased moment and vibration caused by the larger disk size. This allows the system to maintain stability even with increased liquid supply capacity, resolving the contradiction between productivity improvement and stability maintenance.
3Productivity
If the rotational speed is increased to improve fine mist generation efficiency, then the productivity is improved, but the risk of motor damage increases due to bearing breakdown from shaft vibration
Solution Approach 1:
The counterweight member eliminates shaft vibration and precession by balancing the centrifugal forces during high-speed rotation. This protective action prevents bearing breakdown and motor damage, allowing the system to operate at high rotational speeds for improved productivity without exposing the motor to harmful vibrations that would otherwise cause damage.
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 increased durability and generation efficiency by stabilizing the rotating body at high speeds, enabling larger capacity and reducing the risk of shaft damage, even with fluctuating liquid supply, while maintaining a simple structure.
Implementation Method 1
a plurality of first magnetic bodies are disposed with a substantially equal interval in the circumferential direction of the rotating body so that separation distances from the rotating axis of the rotating body to each of the first magnetic bodies in the radial direction are substantially the same, a plurality of second magnetic bodies having the same polarity as the first magnetic bodies are disposed with a substantially equal interval in a rotating direction of the rotating body, and the second magnetic bodies are disposed to face each of the first magnetic bodies respectively, so that magnetic force of the second magnetic bodies can act on the first magnetic bodies
Implementation Method 2
a liquid such as seawater is supplied to the central portion of a rotating disk rotating at high speed, and the supplied liquid is diffused with a uniform film thickness along the surface of the rotating disk by centrifugal force
Data Source
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AI summary
Provides a fine mist generator that can increase both the durability and generation efficiency of the device by increasing the rotational speed of the rotating body and the diameter of the disk shape to achieve large capacity of the fine mist while having a simple structure. [Technical Means] At the annular spherical portion 22B of the outer peripheral surface 22 of the rotating body 20 in the present application, each of a plurality of first magnets 41 (one example of the first magnetic bodies) are disposed with a substantially equal interval in the circumferential direction of the rotating body so that separation distances from the rotating axis C1 of the rotating body 20 to the first magnets 41 in the radial direction are substantially the same. A plurality of second magnets 42 (the second magnetic bodies) having the same polarity as the first magnets 41 are disposed with a substantially equal interval in a rotating direction of the rotating body 20, and the second magnets 42 are disposed to face each of the first magnets 41 respectively, so that magnetic force of the second magnets 42 can act on the first magnets 41 when the rotating body 20 is rotationally driven by the rotation driving unit 30 and the second magnets 42 approach the first magnets 41.