Dishwasher Descaling Arrangement for Automatic Limestone Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Dishwashers face issues with limestone deposition due to high temperatures, leading to scale formation that obstructs spray nozzles, reduces water flow, and increases power consumption, with existing solutions being labor-intensive and ineffective in automatic removal.
Innovation Solution
A dishwasher with a descale system that introduces a descaling substance into the fluid circulation system, allowing it to circulate and distribute the substance throughout the tub and fluid circulation system for automatic descaling, including a controller for managing the descaling process and sensors for monitoring substance levels and dilution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual cleaning with acid solutions is used to remove limestone deposits, then the deposits are removed, but the maintenance is labor-intensive and requires deconstruction of individual components
Solution Approach 1:
The system automatically performs descaling operations without human intervention. The control unit activates the descaling substance dispenser and manages the circulation process, allowing the dishwasher to maintain itself. This eliminates the need for manual disassembly and cleaning by users.
Solution Approach 2:
A descaling substance is introduced as an intermediary agent to chemically remove limestone deposits. The substance circulates through the hydraulic system with the wash water, dissolving and removing encrustations without requiring mechanical disassembly or manual labor.
2Productivity
If limestone deposits are not removed, then the hydraulic system operates continuously, but power consumption increases and heating elements deteriorate faster
Solution Approach 1:
The system performs preliminary descaling action during scheduled maintenance cycles before significant deposits can form and cause major problems. By proactively removing limestone encrustations, the system prevents the conditions that would lead to increased power consumption and heating element deterioration.
Solution Approach 2:
The control unit manages the descaling process timing and substance dosage based on operational cycles. This feedback-controlled approach ensures descaling occurs at appropriate intervals to maintain efficient operation and prevent energy waste from accumulated deposits.
3Productivity
If limestone deposits accumulate on heating elements, then the hydraulic system continues to function, but heat exchange efficiency decreases and heating elements deteriorate
Solution Approach 1:
The descaling substance acts as a chemical intermediary that selectively reacts with and removes limestone deposits from heating elements. This chemical action restores heat exchange efficiency and prevents thermal deterioration of the heating elements without affecting their structural integrity.
Solution Approach 2:
The heating elements are automatically cleaned of deposits through the circulating descaling solution, allowing them to maintain their heat transfer efficiency and extend their operational lifetime without manual intervention or replacement.
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 solution reduces maintenance time, power consumption, and improves dishwasher reliability by automatically removing limestone deposits, ensuring efficient operation and performance.
Implementation Method 1
A descale system in fluid communication with the fluid circulation system. The descale system is configured to selectively introduce a descaling substance into dishwashing fluid circulated within the fluid circulation system such that the descaling substance is distributed to both the tub portion and the fluid circulation system for descaling thereof.
Implementation Method 2
a fluid circulation system configured to circulate dishwashing fluid about the dishware within the tub portion
Data Source
Figure 1A
Figure 1B
Figure 2
AI summary
A descaling arrangement (300) for a dishwasher (10) and an associated apparatus are provided. The dishwasher (10) has a tub portion (12) adapted to receive dishware therein, and a fluid circulation system (200) configured to circulate dishwashing fluid about the dishware within the tub portion (12). A descale system (300) is in fluid communication with the fluid circulation system (200). The descale system (300) is configured to selectively introduce a descaling substance into dishwashing fluid circulated within the fluid circulation system (200) such that the descaling substance is distributed to at least one of the tub portion (12) and the fluid circulation system (200) for descaling thereof. An associated method is also provided.