Decontamination Unit with Integrated H2O2 Supply for Uniform Diffusion
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Solution Overview
Problem
Existing decontamination methods for large enclosed volumes, such as rooms, face challenges in achieving uniform diffusion of hydrogen peroxide (H2O2) and are often complex and costly, with insufficient air flow and mixing, leading to risks of H2O2 condensation and material failure.
Innovation Solution
A decontamination unit with a frame divided into two air chambers, a fan for air flow, and an H2O2 supply device integrated next to the fan inlet or outlet to create a homogeneous H2O2-air mixture, allowing direct introduction into the air stream for efficient diffusion, along with a filtering chamber for capturing H2O2 during the flushing cycle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate H2O2 pumps and air streams are used to spray H2O2 gas into a space, then decontamination can be achieved, but the apparatus becomes complicated and costly with insufficient air flow for proper diffusion
Solution Approach 1:
The patent combines the H2O2 supply device directly with the fan assembly, integrating the chemical supply function into the existing air movement component. This merging eliminates the need for separate H2O2 pumps and reduces the number of independent subsystems, thereby simplifying the overall apparatus while maintaining decontamination effectiveness through the fan's air flow.
Solution Approach 2:
The fan serves multiple functions: it provides air flow for diffusion, creates the air stream for H2O2 introduction, and enables both decontamination and flushing cycles. By making the fan multi-functional, the patent eliminates the need for separate dedicated components for each function, reducing apparatus complexity while maintaining reliability.
2Device complexity
If limited low carrier air flow is used to evaporate H2O2, then the apparatus structure is simplified, but the amount of air is insufficient to properly diffuse the mixture within the space
Solution Approach 1:
The patent changes the air flow parameter by utilizing the fan's full capacity to generate high-velocity air streams rather than limited low flow. This parameter change enables sufficient diffusion of H2O2 throughout the space while maintaining a relatively simple apparatus structure, as the fan itself provides the necessary flow without requiring additional air moving components.
3Device complexity
If H2O2 is introduced without sufficient mixing with carrier gas, then the apparatus is simpler, but there is a risk for H2O2 condensation on surfaces causing material failure
Solution Approach 1:
The patent introduces H2O2 directly into the air stream generated by the fan before the mixture contacts surfaces. This preliminary mixing action ensures that H2O2 is adequately diluted and distributed in the air phase, preventing condensation on surfaces that could cause material failure, while avoiding the need for complex separate mixing mechanisms.
4Productivity
If separate fans, heating, drying, and filtering systems are used to provide proper diffusion of H2O2, then diffusion effectiveness is improved, but the apparatus becomes complicated and costly
Solution Approach 1:
The patent merges multiple functions (air movement, H2O2 introduction, diffusion, and flushing) into a single integrated system centered around the fan and H2O2 supply device. This consolidation achieves proper diffusion effectiveness without requiring separate fans, heating systems, drying systems, and filtering systems, thereby reducing apparatus complexity and cost.
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 solution enables uniform and efficient distribution of H2O2 throughout large spaces, reducing the complexity and cost of decontamination systems while preventing H2O2 condensation, ensuring effective decontamination and safe material handling.
Implementation Method 1
a fan, having a fan inlet and a fan outlet, arranged to the opening of the first plate for forming an air flow from the inlet to the outlet
Implementation Method 2
introducing H2O2 directly into the air flow for forming H2O2-air mixture
Implementation Method 3
capable to provide uniform H2O2 diffusion into a decontaminated space
Implementation Method 4
the inner space comprises a filtering chamber having H2O2 capturing means for capturing H2O2 from the recirculating air
Data Source
AI summary
A decontamination unit for sterilizing a space, which unit hasat least two air chambers, namely an outlet chamber and an inlet chamber; at least one inlet; and an outlet having discharge arrangement,a first plate between the outlet chamber and the inlet air chamber, wherein the first plate comprises an opening for discharging air from the inlet chamber into the outlet chamber,a fan, having a fan inlet and a fan outlet, arranged to the opening of the first plate for forming an air flow from the inlet to the outlet,a H2O2 supply device,wherein the H2O2 supply device is arranged next to the fan inlet or the fan outlet for introducing H2O2 directly into the air flow for forming H2O2-air mixture.