Ultrasonic Mist Supply Device for Uniform Decontamination
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Solution Overview
Problem
The excessive supply of hydrogen peroxide to a room for decontamination leads to uneven condensation, causing corrosion of equipment and prolonged aeration times to remove residual hydrogen peroxide and condensed film.
Innovation Solution
A mist supply device that converts a decontamination agent into a primary mist and further refines it into a secondary mist using ultrasonic vibration, ensuring a proper and efficient decontamination process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large quantity of hydrogen peroxide is supplied to generate condensed film quickly, then decontamination effect is improved, but corrosion of equipment and prolonged aeration time occur
Solution Approach 1:
The invention changes the physical state and particle size parameters of hydrogen peroxide from liquid or gas phase to fine mist phase (0.1-10 μm diameter), enabling uniform distribution and condensation at appropriate concentrations, thus achieving effective decontamination without excessive concentration that causes corrosion
Solution Approach 2:
The invention uses ultrasonic vibration (20-100 kHz frequency) to atomize hydrogen peroxide solution into fine mist particles, creating uniform droplet size distribution that ensures even condensation on surfaces without forming excessive concentrated films that would cause corrosion
2Reliability
If liquid droplets of hydrogen peroxide solution are supplied directly, then decontamination effect is improved, but uneven condensation and corrosion occur
Solution Approach 1:
Ultrasonic vibration at 20-100 kHz breaks up liquid hydrogen peroxide into fine mist particles with uniform size distribution (0.1-10 μm), ensuring even dispersion and uniform condensation on all surfaces without the uneven distribution problems of direct liquid application
Solution Approach 2:
The invention uses gas flow (air or nitrogen) to carry and distribute the ultrasonic mist uniformly throughout the decontamination space, ensuring even coverage on all surfaces including hard-to-reach areas, thereby achieving uniform condensation without the pooling and uneven distribution issues of direct liquid application
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 device achieves a decontamination effect with a proper amount of decontamination agent, reducing the duration of operations like aeration and enhancing the efficiency of decontamination works.
Implementation Method 1
the vibration board(s) is/are subjected to ultrasonic vibration to generate sound flows from board surfaces (41a, 42a, 141a, 142a) by an ultrasound in the vertical direction
Implementation Method 2
the primary mist supplied from the mist generation means is subjected to ultrasonic vibration by the sound flows to further refine the primary mist into a secondary mist
Data Source
AI summary
A mist supply device configured to decontaminate a target with a proper amount of decontamination agent supplied to the target by converting such agent into a fine mist, and reducing the duration of operations such as aeration to increase decontamination efficiency. The device includes a mist generation means, a mist microparticulating means, and a supply port. The mist generation means converts the decontamination agent into a primary mist and supplies it to the mist microparticulating means, which includes at least one vibration board that is subjected to ultrasonic vibration to generate sound flows from board surfaces by an ultrasound in the vertical direction. The supplied primary mist is subjected to ultrasonic vibration by the sound flows to reduce the primary mist into a secondary mist of smaller size. The generated secondary mist is supplied to the inside of the room through the supply port.