Fogging System for Enclosed Chamber Disinfection
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Solution Overview
Problem
Traditional disinfection and sterilization methods using high concentrations of hydrogen peroxide or other gases pose safety risks due to heating processes and material compatibility concerns, as well as risks of accidental exposure and increased concentrations on surfaces.
Innovation Solution
A system and method for disinfecting enclosed chambers using a fogging injection station that introduces atomized disinfectant solutions at lower concentrations without heated vaporization, utilizing a dehumidification chamber and controller to manage airflow and disinfectant introduction, ensuring efficacy below dew point levels and reducing exposure risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high concentrations of hydrogen peroxide are used for sterilization, then sterilization efficacy is improved, but safety risks and material compatibility concerns worsen
Solution Approach 1:
The patent changes the concentration parameter of hydrogen peroxide from traditional high concentrations (50% or more) to lower concentrations (10% or less), fundamentally altering the chemical delivery approach to reduce harmful effects while maintaining sterilization efficacy through enhanced atomization and distribution
Solution Approach 2:
The patent replaces the traditional thermal vaporization system with an atomization system that uses compressed air to break down disinfectant into fine droplets, eliminating the need for heating and associated safety risks while improving distribution uniformity
2Stability of the object's composition
If hydrogen peroxide gas is heated to prevent dew point condensation, then material compatibility is improved, but energy consumption and safety risks worsen
Solution Approach 1:
The patent replaces thermal energy input with mechanical energy (compressed air) to achieve disinfectant vaporization through atomization, eliminating the heating process while maintaining material compatibility by preventing dew point condensation
Solution Approach 2:
The patent changes the physical state parameter of hydrogen peroxide delivery from heated gas phase to ambient temperature atomized droplets, achieving both material compatibility and energy efficiency by operating below dew point without thermal damage
3Reliability
If high concentrations of disinfectant are delivered to enclosed spaces, then sterilization effectiveness is improved, but operator exposure risks and purification requirements worsen
Solution Approach 1:
The patent changes the concentration parameter from high to low (10% or less), fundamentally altering the delivery strategy to achieve sterilization effectiveness through superior atomization and distribution rather than relying on high concentration exposure
Solution Approach 2:
The patent segments the disinfectant delivery into fine atomic droplets through atomization, creating numerous small particles that distribute uniformly throughout the enclosed space, improving sterilization coverage while reducing the total amount of chemical needed
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 system effectively disinfects enclosed spaces with lower concentrations of disinfectants, reducing material damage and operator exposure risks, achieving desired disinfection levels with lower parts per million concentrations, thus enhancing safety and reducing hazards associated with traditional methods.
Implementation Method 1
an atomizing nozzle positioned within the evaporation chamber and connected to the disinfectant fluid reservoir and the air compressor and configured to atomize disinfectant within the evaporation chamber
Implementation Method 2
a dehumidification chamber carried by the housing and connected in the airflow path between the inlet and outlet
Data Source
AI summary
A system for disinfecting an enclosed chamber may include a housing, an inlet and an outlet carried by the housing to be connected in a closed airflow path with the enclosed chamber. A dehumidification chamber, a blower, and an evaporation chamber may be carried by the housing and connected in the airflow path between the inlet and outlet. An atomizing nozzle may be positioned within the evaporation chamber and connected to a disinfectant fluid reservoir and an air compressor and configured to atomize disinfectant within the evaporation chamber. An airflow valve may be connected in the airflow path, and a controller may be configured to, during a treatment phase, operate the compressor to introduce atomized disinfectant into the airflow path, and during an evacuation phase, operate the airflow valve to divert the airflow path through the desiccation chamber to remove atomized disinfectant from the airflow path.