Hydrogen Peroxide Gasifier Cleaning for Stable Sterilant Evaporation

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Solution Overview

Problem

The accumulation of stabilizers on the heating element of a gasifier for a sterilizer reduces the efficiency of hydrogen peroxide gasification, necessitating frequent disassembly and cleaning, which decreases productivity and affects sterilization effectiveness.

Innovation Solution

A gasifier with an integrated cleaning device that uses a cleaning liquid blasting system to remove deposited stabilizers from the heating surface, comprising a cleaning liquid tank, pump, and air supply to maintain high hydrogen peroxide concentration and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If the hydrogen peroxide solution is gasified by bringing it into contact with the heating element, then the sterilizer is gasified efficiently, but the stabilizer is deposited and accumulated on the heating element, reducing gasification efficiency

Engineering Contradiction:
Improvegasification efficiencyVSAvoidstable operation period
Core Design Contradiction:
PowerVSReliability

Solution Approach 1:

The patent applies preliminary action by performing cleaning of the heating element at predetermined intervals before stabilizer accumulation significantly degrades performance. The control unit schedules cleaning operations proactively based on operational time or gasification volume, preventing efficiency loss rather than reacting to it after occurrence.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements self-service through automated cleaning where the cleaning device and control unit automatically perform maintenance without manual intervention. The control unit monitors operational parameters and autonomously activates the cleaning device when cleaning conditions are met, enabling the system to maintain itself.

Inventive Principle:
Principle #25Self-service

2Power

If the gasifier is disassembled and cleaned regularly to remove stabilizer deposits, then the gasification efficiency is maintained, but the productivity is reduced

Engineering Contradiction:
Improvegasification efficiencyVSAvoidproduction output
Core Design Contradiction:
PowerVSProductivity

Solution Approach 1:

The patent replaces manual disassembly and cleaning operations with an automated cleaning device that uses water or steam to remove stabilizer deposits. This substitution eliminates the need for production stoppage and manual labor, maintaining gasification efficiency while preserving productivity.

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

Solution Approach 2:

The system ensures continuity of useful action by performing cleaning operations without interrupting the overall production process. The automated cleaning can occur during low-demand periods or using spare capacity, ensuring that gasification efficiency is maintained while production continues uninterrupted.

Inventive Principle:
Principle #20Continuity of useful action

3Power

If the stabilizer accumulates on the heating element, then the heat conduction is impeded, but the device complexity increases due to additional cleaning mechanisms

Engineering Contradiction:
Improveheat conduction efficiencyVSAvoidcleaning system complexity
Core Design Contradiction:
PowerVSDevice complexity

Solution Approach 1:

The cleaning device is designed with multi-functionality, serving both as a water spray system for cleaning and potentially as a pre-treatment step before gasification. The same hardware infrastructure is utilized for multiple purposes, minimizing additional complexity while effectively removing stabilizer deposits to maintain heat conduction.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent introduces water or steam as an intermediary substance that facilitates the removal of stabilizer deposits from the heating element. This intermediary medium enables efficient cleaning without requiring complex mechanical scraping or disassembly mechanisms, simplifying the overall system while maintaining heat conduction efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 prevents stabilizer accumulation, ensuring stable high-concentration hydrogen peroxide gas production for prolonged periods, maintaining effective sterilization in aseptic filling and packaging machines.

Implementation Method 1

a gasifier for a sterilizer that brings a sterilizer containing at least hydrogen peroxide and a stabilizer into contact with a heating surface to gasify the sterilizer

Methodology Applied
Scientific EffectGasification: Evaporation

Implementation Method 2

a cleaning device that cleans the heating surface is provided, and the cleaning device includes a cleaning liquid blasting device that blasts a cleaning liquid to the heating surface

Methodology Applied
Scientific EffectMechanical cleaning: Abrasion

Data Source

PatentEP4706693A1Gasifying device for sterilization agent and method for cleaning gasifying device for sterilization agent
Publication Date: 2026.03.11 DAI NIPPON PRINTING CO LTD
  • EP4706693A1 patent drawingFigure 1
  • EP4706693A1 patent drawingFigure 2
  • EP4706693A1 patent drawingFigure 3

AI summary

A device capable of stably obtaining gas of a sterilizer containing hydrogen peroxide for a long time is provided. A cleaning device that cleans a heating surface that gasifies a sterilizer of a gasifier for a sterilizer is provided, and after an operation for a fixed time period, the heating surface is cleaned.