Dishwasher Additive Dosing With Micro-Reactor Chemical Selection
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Solution Overview
Problem
Existing dishwashing machines require the manual addition of additives, often leading to over-dosing and unnecessary use of components, resulting in environmental pollution and high costs, as they cannot selectively add specific chemical products required for each process step.
Innovation Solution
A dishwashing machine with a dosing device that allows independent addition of only the basic chemical products needed for each process step, using a micro-reactor to produce reaction mixtures and a micro-dosing pump for precise delivery, enabling the use of concentrates and gaseous additives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If manual addition of additives is used, then the user can control the addition process, but over-dosing occurs and unnecessary components are used leading to environmental pollution and high costs
Solution Approach 1:
The system automatically determines which basic chemical products are needed for the current process step and doses them independently without manual intervention. The control unit autonomously manages the selection and dosing of chemical products based on process requirements, eliminating over-dosing and unnecessary component usage.
Solution Approach 2:
The system changes the dosing parameters by transitioning from fixed predefined fractions to dynamic, requirement-based dosing. The control unit adjusts the quantity and type of chemical products added based on actual process needs, enabling precise control over chemical consumption and reducing waste.
2Loss of substance
If all basic chemical products of an all-round product are added together, then a complete cleaning solution is provided, but unnecessary components are used leading to environmental pollution and high costs
Solution Approach 1:
The system segments the all-round product into individual basic chemical products and adds only the specific ones needed for each process step. Instead of adding all components together, the control unit selectively doses individual chemical products based on the requirements of the current process step, reducing waste while maintaining cleaning effectiveness.
Solution Approach 2:
The system applies local quality by providing different chemical compositions for different process steps. Each process step receives the specific basic chemical products it needs, rather than a uniform all-round product. This ensures optimal cleaning effectiveness for each step while minimizing unnecessary chemical usage.
3Measurement precision
If a micro-reactor is used to produce reaction mixtures, then gaseous additives and concentrates can be used with precise control, but the device complexity increases
Solution Approach 1:
The micro-reactor serves as an intermediary device that converts basic chemical products into reaction mixtures or gaseous additives as needed. This intermediary step enables precise control over the chemical form and composition delivered to the washing container, allowing the system to handle various additive types with high dosing accuracy despite the increased device complexity.
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 optimizes the use of chemical products, reducing waste and costs by ensuring only necessary components are added in the correct quantities and at the right time, improving cleaning efficiency and reducing environmental impact.
Implementation Method 1
using a micro-reactor to produce reaction mixtures
Implementation Method 2
a micro-dosing pump for precise delivery
Data Source
AI summary
A dish washing machine is provided having a dosing device operable to add an additive product into the dishwasher, the dosing device being operatively connected to an arrangement that separately stores the basic chemical products of an all-round additive product independent of one another. The dosing device is operable to independently add into the dishwasher one basic chemical product not used for clear rinsing of the all-round additive product, at least two, but not all, of the basic chemical products of the all-round additive product together, or at least one reaction mixture consisting of the basic chemical products of the all-round additive product.