Room-Specific Ultrasonic Mist Decontamination for Liquid Control
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Solution Overview
Problem
Existing decontamination systems using hydrogen peroxide gas require large-scale equipment and long ducts, leading to inefficiencies and challenges in controlling the amount of decontamination liquid supplied to multiple rooms, with potential condensation and ultrasonic vibrator failures.
Innovation Solution
A decontamination system using compressed air to mix with hydrogen peroxide solution, generating a primary mist that undergoes gas-liquid separation and is converted into a fine secondary mist using ultrasonic atomizers, with separate generation means for each room, eliminating the need for large-scale equipment and ensuring accurate liquid supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If hydrogen peroxide gas is supplied to multiple rooms using long main ducts and branch ducts, then simultaneous decontamination of multiple rooms is achieved, but condensation occurs in branched parts and the amount of hydrogen peroxide gas supplied becomes difficult to control
Solution Approach 1:
The system divides the decontamination liquid supply into separate supply pipes for each room, with each room having its own ultrasonic atomizer. This segmentation eliminates the long branched ducts that caused condensation and control difficulties, while still enabling simultaneous decontamination of multiple rooms through independent control of each room's atomizer.
Solution Approach 2:
The patent introduces an intermediary mechanism (ultrasonic atomizer) that converts liquid hydrogen peroxide into gas phase at the point of use in each room. This eliminates the need for long ducts to transport hydrogen peroxide gas, as the liquid is supplied through manageable pipes and converted to gas locally, solving both condensation and control issues.
2Measurement precision
If a decontamination liquid supply unit and mist generation device are provided for each room, then precise control of decontamination liquid supply is achieved, but large-scale equipment and long ducts are required
Solution Approach 1:
The system uses hydraulic principles to supply decontamination liquid through pipes to each room, and pneumatic principles through the ultrasonic atomizer to convert liquid to gas phase. This combination allows precise control of liquid supply while avoiding the need for large-scale gas ductwork, as the conversion to gas phase occurs locally at each room.
Solution Approach 2:
The patent changes the physical state parameter of hydrogen peroxide from gas phase (requiring long ducts) to liquid phase (easily transportable through pipes), then converts it back to gas phase locally using ultrasonic atomization. This parameter change enables precise control while eliminating large-scale equipment requirements.
3Device complexity
If long supply pipes are installed from one decontamination liquid supply unit to multiple rooms, then equipment sharing is achieved, but residual dead liquid remains in the pipes and accurate supply control becomes difficult
Solution Approach 1:
The system segments the liquid supply into separate pipes for each room, eliminating the long branched configuration that creates dead liquid pockets. Each room has its own dedicated supply line, ensuring complete liquid delivery without residual dead liquid, while still sharing the main decontamination liquid supply unit.
Solution Approach 2:
The ultrasonic atomizer continuously converts the supplied liquid into fine droplets and propels them into the room, ensuring complete utilization of the decontamination liquid. This continuous action prevents liquid from stagnating in the supply pipes, eliminating dead liquid accumulation while maintaining equipment sharing.
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 efficiently uses decontamination liquid without residual dead liquid, prevents condensation, and avoids ultrasonic vibrator failures, allowing precise control of mist supply to multiple rooms, thus optimizing decontamination efficiency.
Implementation Method 1
a fine secondary mist using an ultrasonic atomizer
Implementation Method 2
a primary mist that undergoes gas-liquid separation
Data Source
AI summary
A decontamination system not requiring large-scale equipment and capable of efficiently using a decontamination liquid. Long pipes can be installed for each of multiple rooms to be decontaminated, a decontamination liquid is not present in supply pipes as a residual dead liquid, and a proper amount of decontamination liquid can essentially be supplied for each room to cause no failure of an ultrasonic vibrator. The system employs a decontamination mist and includes a compressed air generating equipment and a decontamination liquid supplying equipment, and each room is provided with primary and secondary mist generating equipment. The conveyance distance of a primary mist supply pipe connecting the primary and secondary mist generating equipment is longer than that of a decontamination liquid supply pipe connecting the decontamination liquid supplying equipment and the primary mist generating equipment.