Ozone injection systems
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Solution Overview
Problem
Existing ozone injection systems for laundry machines face limitations such as low maintenance, high installation costs, inability to customize ozone levels, and inadequate ozone concentration throughout the wash cycle, particularly due to issues with indirect, charged, and recirculation methods.
Innovation Solution
Injecting ozone into the chemical lines at various stages of the wash cycle using ozone generators, such as UV or venturi systems, allows for controlled ozone dosage based on soil load, minimizing off-gassing and maintaining adequate ozone levels through the wash cycle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If ozone is injected through fill lines during the wash cycle, then ozone levels are initially high, but ozone levels drop dramatically once alkali detergent is added and remain low for the majority of the wash cycle
Solution Approach 1:
The system continuously injects ozone throughout the entire wash cycle rather than only during the fill cycle. The controller activates the ozone injection system at multiple stages including pre-soak, main wash, and rinse cycles, ensuring continuous ozone presence to maintain effective concentration levels throughout the complete washing process.
Solution Approach 2:
The system pre-dissolves ozone in water through UV irradiation or venturi injection before the alkali detergent is added to the wash water. By establishing adequate ozone levels in advance, the system ensures that effective ozone concentration is maintained even after detergent addition, preventing the dramatic drop that occurs when ozone is injected only during filling.
2Quantity of substance
If recirculation systems are used to maintain ozone levels, then ozone concentration is maintained throughout the wash cycle, but system complexity and installation costs increase significantly
Solution Approach 1:
The system extracts the ozone injection function from the complex recirculation system by using the existing water fill and chemical injection infrastructure. Instead of requiring a dedicated recirculation pump and plumbing system, the invention utilizes UV irradiation or venturi injection integrated with the existing water delivery system to achieve continuous ozone injection with minimal additional complexity.
Solution Approach 2:
The ozone injection system is integrated with the existing water fill and chemical injection systems, allowing these multi-functional lines to serve both their original purposes and ozone delivery. The controller coordinates ozone injection with existing cycle stages, eliminating the need for separate recirculation infrastructure while maintaining effective ozone levels throughout the wash cycle.
3Ease of operation
If fixed ozone dosage is applied for each wash cycle, then system operation is simple, but ability to customize ozone levels for particular wash loads is lost
Solution Approach 1:
The system dynamically adjusts ozone injection parameters including duration, intensity, and timing based on detected wash load characteristics. The controller modifies ozone dosage in real-time according to soil load assessment, water temperature, and cycle type, enabling customization for different wash requirements while maintaining simple automated operation through sensor-based feedback and adaptive control algorithms.
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 approach reduces maintenance and installation costs, enables customizable ozone levels, and maintains effective ozone concentrations throughout the wash cycle, providing thorough cleaning while preventing ozone buildup in the environment.
Implementation Method 1
ozone generators, such as UV or venturi systems
Implementation Method 2
ozone generators, such as UV or venturi systems
Implementation Method 3
The dissolved ozone oxidizes the dirt and other soil on the laundry and cleans them quite effectively
Data Source
AI summary
An ozone laundry system that injects ozone into the chemical injection system in order to allow the system to inject ozone as other cleaning chemicals are injected into the washer. This allows ozone to be injected through the wash cycle rather than just during the initial fill phase and additional avoids the expense and maintenance of adding ozone recirculation plumping to an ozone laundry system. Accordingly, ozone levels may be maintained at superior levels throughout the wash cycle.