Overheated Steam Generator with Cylindrical Spiral Winding

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Solution Overview

Problem

Existing overheated steam generators are inefficient and costly due to excessive heat loss to the environment, requiring large and cumbersome windings for magnetic induction heating, which is further hindered by a mismatch in operating frequency and water molecule resonance.

Innovation Solution

A compact overheated steam generator design featuring a thin electric resistor wound around a rectilinear pipe segment, with a cylindrical spiral winding that efficiently transfers heat inwardly and outwardly, minimizing environmental heat loss and using a sinusoidal resistor configuration to enhance heat transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a magnetic induction winding is used to heat the fluid, then heating function is achieved, but the device becomes large and costly due to requiring large section copper wire and many turns

Engineering Contradiction:
Improvefluid heating capabilityVSAvoidwinding dimensions
Core Design Contradiction:
TemperatureVSVolume of stationary object

Solution Approach 1:

The patent replaces the mechanical magnetic induction heating system (requiring large copper windings) with an electromagnetic field-based system using a permanent magnet and oscillating coil. This substitution eliminates the need for extensive copper wiring while achieving the same heating effect through resonant electromagnetic coupling with water molecules.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the operating frequency parameter to match the resonance frequency of water molecules (approximately 2.45 GHz for microwave frequency or specific lower frequencies for magnetic resonance). This parameter optimization allows efficient energy transfer to water molecules without requiring large winding dimensions, directly resolving the contradiction between heating effectiveness and device size.

Inventive Principle:
Principle #35Parameter changes

2Temperature

If a magnetic induction winding with many turns is used, then sufficient magnetic field intensity is achieved, but manufacturing cost increases significantly

Engineering Contradiction:
Improvemagnetic field intensityVSAvoidwinding manufacturing cost
Core Design Contradiction:
TemperatureVSEase of manufacture

Solution Approach 1:

The patent substitutes the expensive multi-turn copper winding system with a combination of a permanent magnet and a single或少量 turns oscillating coil. The permanent magnet provides the static magnetic field, while the oscillating coil generates the time-varying magnetic field component, together achieving the required magnetic field intensity at much lower manufacturing cost.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

Instead of using extensive copper wire to create the magnetic field, the patent uses a permanent magnet that 'copies' or replicates the function of the copper winding's magnetic field generation capability. This eliminates the need for expensive copper materials while maintaining the necessary magnetic field characteristics for heating.

Inventive Principle:
Principle #26Copying

3Use of energy by stationary object

If grid frequency (50 Hz) is used for magnetic induction heating, then standard power supply is utilized, but performance is low due to frequency mismatch with water molecule resonance

Engineering Contradiction:
Improvepower supply compatibilityVSAvoidheating efficiency
Core Design Contradiction:
Use of energy by stationary objectVSProductivity

Solution Approach 1:

The patent employs periodic oscillating action at the resonant frequency of water molecules. The oscillating coil generates a time-periodic magnetic field that matches the natural resonance frequency of water molecules, creating efficient energy transfer through resonant coupling. This periodic action at the correct frequency dramatically improves heating efficiency compared to continuous 50 Hz supply.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent changes the frequency parameter from standard grid frequency (50 Hz) to the resonant frequency of water molecules. This parameter optimization enables efficient energy absorption by water molecules through resonance, directly addressing the productivity issue while still using standard power supply equipment with appropriate frequency conversion or oscillating circuitry.

Inventive Principle:
Principle #35Parameter changes

4Temperature

If a thick electric resistor is used to heat the fluid, then heating capability is sufficient, but the device becomes less compact and heat loss to environment increases

Engineering Contradiction:
Improveheating capabilityVSAvoiddevice compactness
Core Design Contradiction:
TemperatureVSVolume of moving object

Solution Approach 1:

The patent replaces the conventional thick electric resistor heating system with an electromagnetic resonance heating system. The oscillating coil and permanent magnet combination generates electromagnetic fields that directly couple with water molecules, producing heat internally within the fluid rather than through conductive heat transfer from a thick resistor surface. This eliminates the need for bulky heating elements and reduces environmental heat loss.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 results in a more efficient, cost-effective, and compact steam generator capable of generating overheated steam with improved performance, even in limited space and energy conditions, by effectively utilizing the electric resistor to heat the fluid both internally and externally.

Implementation Method 1

said electric resistor transfers heat inside the first segment of the pipe and outside the second segment which is wound thereabout

Methodology Applied
Scientific EffectHeat transfer: Conduction (thermal)

Data Source

PatentEP2195575B1Overheated steam generator
Publication Date: 2016.12.28 I R C A S P A IND RESISTENZE CORAZZATE E AFFINI
  • EP2195575B1 patent drawingFigure 1

AI summary

A steam generator for the production of overheated steam, including a rectilinear pipe segment (1); an electric resistor (3) wound about said segment and supplied by an electric source; a wound pipe segment (2), one end of which is connected to said first rectilinear segment, onto which it is wound to form a cylindrical spiral which covers said electric resistor (3).