Air Decontamination Dehumidification for Stable Microbicidal Vapor
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Solution Overview
Problem
Existing air decontamination devices are costly, require frequent maintenance, and struggle with controlling relative humidity and stable microbicidal material delivery, leading to ineffective decontamination and potential corrosion of surfaces.
Innovation Solution
A mobile air decontamination device that uses a compressor, forced-convection condenser, and water-separating filter to dehumidify air, combined with an evaporator and injection system for continuous microbicidal material vaporization, allowing for controlled humidity and reduced operational costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If closed-circuit vaporization of microbicidal material is used, then decontamination effectiveness is improved, but relative humidity increases causing condensation and corrosion
Solution Approach 1:
The patent extracts and removes water vapor from the closed-circuit decontamination system using a condensation and vacuum system. The system condenses water vapor from the air circulation and uses vacuum to extract and remove the condensed water, preventing humidity buildup and corrosion while maintaining effective decontamination.
Solution Approach 2:
The patent changes the temperature parameter of the air circulation system by cooling it to condense water vapor. The air is cooled below its dew point temperature, causing water vapor to condense into liquid form that can then be removed by the vacuum system, thereby controlling humidity levels.
2Device complexity
If peristaltic pumps are used for material distribution, then device complexity is reduced, but flow rate stability and measurement precision deteriorate
Solution Approach 1:
The patent replaces the mechanical peristaltic pump system with an ultrasonic nebulization system. The ultrasonic vibrations generate a fine mist of microbicidal material that is carried by air circulation, eliminating the mechanical pump while achieving stable and measurable material distribution through ultrasonic frequency control.
3Loss of substance
If peristaltic pumps operate intermittently to avoid overdosing, then material loss is reduced, but productivity and decontamination efficiency decrease
Solution Approach 1:
The patent enables continuous operation of the decontamination system by using ultrasonic nebulization that continuously generates a fine mist of microbicidal material. The air circulation system continuously distributes this mist throughout the enclosure, maintaining effective concentration without interruption while preventing overdose through controlled ultrasonic power and air flow rate.
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 effectively dehumidifies and decontaminates air without refrigeration machines or hygroscopic materials, reducing corrosion risks and operational expenses while ensuring stable and efficient microbicidal material delivery.
Implementation Method 1
The compressor is intended to compress the air entering the device. It is suitable for compressing the air entering the device to a predetermined pressure P, to obtain the water saturation of the air having entered the device.
Implementation Method 2
The cooler advantageously corresponds to a forced-convection condenser and is suitable for cooling the air leaving the compressor and obtaining condensation at ambient temperature of the excess water contained in the air compressed by the compressor.
Implementation Method 3
The filter is suitable for collecting the condensed water owing to the forced-convection condenser.
Implementation Method 4
a means for evaporating a microbicidal material, which is arranged upstream from the outlet port and downstream from the dehumidifier means, and which is intended for vaporizing the microbicidal material in the air flowing inside the device
Data Source
AI summary
The invention relates to an air decontamination device. The mobile air decontamination device (1) includes: (i) an inlet port and an outlet port; (ii) a dehumidifying means downstream from the inlet port for dehumidifying the air entering the device (1) via said inlet port; and (iii) a means for evaporating a microbicidal material, which is arranged upstream from the outlet port and downstream from the dehumidifying means, and which is intended for vaporizing the microbicidal material in the air flowing inside the device (1). Furthermore, the dehumidifying means includes a compressor (4) connected to the inlet port for compressing the air entering the device (1), a forced-convection condenser (5) arranged downstream from the compressor (4), and a water-separating filter (6) arranged downstream from the forced-convection condenser (5), the device (1) including a means for adjusting the discharge pressure of the compressor (4).