Steam Generator Automatic Descaling Device for Laundry Appliances
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Solution Overview
Problem
Existing laundry treatment devices with steam generators face issues with calcification due to mineral-rich water, leading to frequent descaling needs, which can impair functionality and require costly repairs if not addressed regularly.
Innovation Solution
A laundry treatment device with an integrated automatic care device that stores descaling agents and initiates care processes automatically, using citric acid or other biodegradable acids to dissolve lime deposits, extending maintenance intervals and minimizing user intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a steam generator uses water containing minerals for steam production, then steam generation function is achieved, but calcification deposits accumulate on fluid-carrying surfaces over time, impairing functionality
Solution Approach 1:
The care device performs preliminary actions by storing care products in advance and automatically supplying them to the steam generator at predetermined intervals. This preventive maintenance approach dissolves calcification deposits before they significantly impair functionality, extending the operational reliability of the steam generator without requiring manual intervention.
2Object-affected harmful factors
If manual descaling is performed regularly, then calcification deposits are removed, but user time and effort are required for frequent maintenance operations
Solution Approach 1:
The care device enables the steam generator to perform self-service maintenance by automatically supplying care products to dissolve calcification deposits. The control device activates the care device at predetermined intervals without user intervention, allowing the system to maintain itself and eliminating the need for manual descaling operations.
Solution Approach 2:
Care products are stored in advance in the care device, and the automatic supply mechanism ensures that dissolving agents are delivered to the steam generator before calcification becomes problematic. This preliminary preparation and automatic delivery system eliminates the need for users to spend time on frequent manual maintenance.
3Reliability
If complex repair procedures are implemented, then severe calcification damage can be fixed, but repair costs and device complexity increase
Solution Approach 1:
The care device provides beforehand cushioning by continuously protecting the steam generator from severe calcification damage through automatic supply of dissolving agents. This preventive measure cushiones against the need for complex repairs by maintaining the steam generator in good condition, thereby reducing both repair complexity and associated costs.
4Object-affected harmful factors
If frequent manual intervention is required for descaling, then calcification is controlled, but ease of operation deteriorates due to repeated user actions
Solution Approach 1:
The automated care device enables the steam generator system to perform self-service maintenance by automatically supplying care products at predetermined intervals. This eliminates the need for frequent manual user actions, significantly improving ease of operation while maintaining effective control over calcification deposits.
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
Ensures long-term reliable operation of the steam generator with reduced user action, extending maintenance intervals to every 120 days and preventing calcification-related damage, while ensuring safety and environmental sustainability.
Implementation Method 1
a heating resistor is arranged within the container, which heats the water until it evaporates
Implementation Method 2
an instantaneous water heater into which water is pumped using a controlled pump, which then evaporates in the heated pipeline
Implementation Method 3
it stores the care product for at least one care cycle and carries out the care process automatically by supplying care product to the steam generator... so that it can act on the fluid-carrying surfaces of the steam generator there and there Adhering deposits such as lime or dirt can be removed
Data Source
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AI summary
The invention relates to a laundry treatment device (1) comprising: - a housing (2); - at least one chamber (3) for receiving laundry (9) with an access opening closable by means of a door (5); - a unit (8) with a blower (83) for generating and/or conveying process air (P) through the chamber (3); - a steam generator (40) with a water supply unit (41) and a water heater (41) for generating and supplying steam to the chamber (3); - a control device (18, µC) for activating and deactivating the unit (8) for generating the process air (P) and the steam generator (40). The device (1) is characterized by a maintenance device (50) for automatic maintenance, such as descaling and/or cleaning, of the steam generator (40).