Two-Stage Ozone Decomposition Device Using Catalytic and Thermal Units

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Solution Overview

Problem

Current ozone decomposition devices take a long time to decompose unreacted ozone and are unable to simultaneously decompose a large amount of ozone, posing health risks due to the lingering oxidizing properties of ozone off-gas.

Innovation Solution

The device employs a two-stage decomposition process, where a first ozone decomposition unit uses a catalyst like manganese dioxide or platinum for primary decomposition, followed by a second ozone decomposition unit utilizing a thermal conductor and heat source for secondary decomposition, allowing for faster and more complete ozone breakdown.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single catalyst-based decomposition method is used, then the device structure is simple, but the decomposition time is long and the amount of ozone that can be decomposed is limited

Engineering Contradiction:
Improvedevice structureVSAvoiddecomposition speed and capacity
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The decomposition device is divided into two independent units: a first ozone decomposition unit using catalytic reaction and a second ozone decomposition unit using thermal decomposition. This segmentation allows each unit to specialize in different decomposition mechanisms, achieving faster overall decomposition and larger capacity while maintaining reasonable structural complexity through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent combines two different decomposition methods (catalytic and thermal) into a single integrated system. The first unit employs catalysts like manganese dioxide or platinum for catalytic decomposition, while the second unit uses heating elements for thermal decomposition. This merging of multiple decomposition pathways enables the system to handle larger volumes of ozone more efficiently.

Inventive Principle:
Principle #5Merging (Combining)

2Device complexity

If only catalytic decomposition is used, then the device structure is simple, but the decomposition time is long

Engineering Contradiction:
Improvedecomposition processVSAvoiddecomposition time
Core Design Contradiction:
Device complexityVSLoss of time

Solution Approach 1:

The first ozone decomposition unit performs preliminary catalytic decomposition to break down the majority of ozone molecules before the gas enters the second unit. This preliminary action reduces the ozone load significantly, allowing the second thermal decomposition unit to quickly finish decomposing the remaining ozone, thereby reducing total decomposition time without excessive complexity.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements continuous decomposition through two sequential units. The catalytic decomposition in the first unit continuously processes ozone, and the thermal decomposition in the second unit continuously finishes the remaining ozone. This continuous action across two stages eliminates idle time and ensures constant decomposition efficiency.

Inventive Principle:
Principle #20Continuity of useful action

3Ease of operation

If a single decomposition unit is used, then the device is simple to operate, but a large amount of ozone cannot be simultaneously decomposed

Engineering Contradiction:
Improveoperation simplicityVSAvoidozone decomposition capacity
Core Design Contradiction:
Ease of operationVSQuantity of substance

Solution Approach 1:

The system is segmented into two functional units with distinct decomposition mechanisms. The first unit handles the bulk of ozone decomposition through catalytic reaction, while the second unit addresses residual ozone through thermal decomposition. This segmentation enables the system to process large quantities of ozone simultaneously while maintaining operational simplicity through standardized modular components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent changes the decomposition parameters between two stages: the first unit operates at lower temperatures with catalysts for efficient catalytic decomposition, while the second unit increases temperature for rapid thermal decomposition of residual ozone. This parameter change strategy allows the system to handle large ozone quantities without complicating the operation interface.

Inventive Principle:
Principle #35Parameter changes

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

This approach significantly shortens the ozone decomposition time and enables the simultaneous decomposition of a larger amount of ozone, reducing health hazards associated with ozone off-gas.

Implementation Method 1

a first ozone decomposition unit (200) installed in the installation space of the housing (100) to decompose ozone of external gas flowing into the installation space inside the housing (100) through the inlet (150)

Methodology Applied
Scientific EffectCatalytic reaction: Catalysis

Implementation Method 2

a second ozone decomposition unit (300) installed in the installation space of the housing (100) to receive the gas decomposed by the first ozone decomposition unit (200) and decompose residual ozone in the gas

Methodology Applied
Scientific EffectThermal decomposition: Thermolysis

Data Source

PatentUS11826702B2Ozone decomposition device
Publication Date: 2023.11.28 CAST CO LTD
  • US11826702B2 patent drawing
  • US11826702B2 patent drawing
  • US11826702B2 patent drawing

AI summary

The present disclosure includes a housing including an installation space formed therein, an inlet through which an external gas flows into the installation space, and an outlet through which a gas inside the installation space is discharged to the outside, a first ozone decomposition unit installed in the installation space of the housing to decompose ozone in the external gas flowing into the installation space inside the housing through the inlet, and a second ozone decomposition unit installed in the installation space of the housing to receive the gas decomposed by the first ozone decomposition unit and decompose residual ozone in the gas.