Decompression Steam Generator With Bubble Dispersion Heating

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Solution Overview

Problem

Conventional steam generators are limited by their size due to the need for separate electrodes and generate ozone, leading to safety concerns and increased production costs, with unstable overheated regions causing steam explosions during the heating process.

Innovation Solution

A compact steam generator design utilizing a decompression method where raw water is heated to a high-temperature and high-pressure state and then secondary heated for stable atomization, eliminating the need for separate electrodes and ozone removal devices by using a heater unit with an in-water and in-steam heating system, bubble dispersion member, and temperature sensors to prevent overheating.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If electrostatic atomization method is used to generate steam, then steam can be produced, but the device size increases due to separate electrodes and ozone generation occurs which is harmful to health

Engineering Contradiction:
Improveozone generationVSAvoiddevice structure
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent removes the electrostatic atomization system (electrodes) entirely from the steam generator, extracting the harmful ozone generation function while retaining steam production through a purely thermal heating process. This eliminates the need for complex electrode structures and ozone removal devices.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent converts the harmful high-voltage electrostatic atomization process into a beneficial pure thermal heating process. By using only heating elements to vaporize water, the system eliminates ozone generation while maintaining efficient steam production, turning a harmful technological approach into a safe one.

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

2Productivity

If high voltage is applied to atomize water, then steam is generated, but power consumption increases and production cost increases

Engineering Contradiction:
Improvesteam generation efficiencyVSAvoidpower consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent replaces the mechanical/electrical atomization system (high-voltage electrodes) with a purely thermal system (heating elements). This substitution eliminates the high power consumption associated with generating and maintaining high voltages, while maintaining steam generation productivity through efficient heat transfer to water.

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

3Productivity

If raw water is heated in the housing, then steam is generated, but unstable overheating occurs causing steam explosions (bumping)

Engineering Contradiction:
Improvesteam generationVSAvoidoperational stability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent introduces a water level sensor that provides localized monitoring of water conditions in different regions of the housing. This allows the system to detect and respond to localized overheating conditions before they develop into steam explosions, ensuring uniform and stable heating throughout the water volume.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements a feedback control system using a water level sensor that continuously monitors water conditions and provides real-time information to the control unit. When abnormal conditions (such as low water level or overheating) are detected, the system automatically adjusts or stops heating, preventing steam explosions and ensuring stable operation.

Inventive Principle:
Principle #23Feedback

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 enables the generation of harmless, abundant atomized steam without ozone production, reducing device size and production costs, while preventing steam explosions through controlled heating and decompression, ensuring stable operation and user safety.

Implementation Method 1

a heating member (320) that heats the raw water

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

raw water heated by the heater unit 300 is in a high-temperature and high-pressure state in the heater unit 300, and upon being sprayed to outside by the spraying unit 500, the high-temperature and high-pressure raw water is converted into steam by decompression

Methodology Applied
Scientific EffectDecompression: Depressurisation

Data Source

PatentUS9958151B2Steam generator
Publication Date: 2018.05.01 COWAY CO LTD
  • US9958151B2 patent drawing
  • US9958151B2 patent drawing
  • US9958151B2 patent drawing

AI summary

Provided is a steam generator (1000) which comprises a water tank (200); a heater unit (300) connected with the water tank so as to heat the water; and a spraying unit (500) connected with the heater unit (300), wherein raw water heated by the heater unit (300) is in a high-temperature and high-pressure state in the heater unit (300), and the high-temperature and high-pressure raw water is converted into steam by decompression when sprayed to the outside by the spraying unit (500). The steam generator, according to the present invention, can generate steam without a separate electric power supply device, can generate steam that is harmless to the human body without generating ozone, and can generates an abundant amount of atomized steam through a process for directly heating the supplied raw water by using a heating member disposed in a housing and then secondarily heating the steam of which a phase is primarily changed so as to atomize steam particles, thereby suppressing the ejection of condensed water. In order to suppress rapid boiling which occurs by the overheating of a surface between the heating member and the supplied raw water or an overheated region formed in the housing, and steam explosion in the housing caused thereby, a bubble dispersing member is provided in the heating member, thereby preventing the rapid expansion of the steam. Since the present invention does not require an ozone removing device and an electric power supply device, the size of the steam generator can be reduced and production costs can be lowered, and thus users can easily purchase and use the steam generator at home.