Steam Generator Control for Precise Fabric Treatment Cycles
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Solution Overview
Problem
Existing fabric treatment appliances with steam generation lack precise control over steam production, leading to either insufficient steam for optimal performance or energy wastage due to excess steam, as current control methods are not user-input adaptable and do not account for varying parameters.
Innovation Solution
A method and appliance that allow users to input specific steam cycle parameters, using tables and voltage measurements to precisely control steam generation, ensuring the right amount of steam is produced based on user settings, load, and textile type, with a control unit that adjusts the steam generator's operation to match the required steam levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If continuous steam generation control is used based on water level and temperature detection, then steam generation can be maintained, but precise control of steam amount is not achieved and energy wastage occurs
Solution Approach 1:
The control unit continuously detects the actual amount of steam generated and compares it with the target amount, then adjusts the heating element operation accordingly. This closed-loop feedback system enables precise control of steam generation while preventing energy wastage by stopping steam production exactly when the required amount is achieved.
Solution Approach 2:
The control method dynamically adjusts the steam generation process by continuously monitoring multiple parameters (water level, temperature, heating element voltage) and adapting the heating power in real-time. This dynamic control allows the system to respond to changing conditions and achieve precise steam amount control rather than operating in fixed states.
2Adaptability or versatility
If fixed duration steam cycles are used, then operation is simple, but steam amount cannot be adapted to user inputs and fabric treatment requirements
Solution Approach 1:
The control unit uses feedback from multiple sensors (water level, temperature, voltage) to continuously monitor steam generation and compare it with target values derived from user inputs. This enables the system to adapt steam cycle duration and intensity to specific fabric treatment requirements while maintaining automated control.
Solution Approach 2:
The control unit pre-calculates the target steam generation amount and required cycle parameters based on user inputs before starting the steam cycle. This preliminary action allows the system to adapt to different fabric treatment requirements while simplifying user operation, as users only need to input their requirements without managing complex control parameters.
3Reliability
If steam generation is not precisely controlled, then either insufficient steam is produced affecting treatment performance, or excess steam is generated causing energy and water wastage
Solution Approach 1:
The control unit continuously detects the actual steam generation amount and compares it with the target amount calculated from user inputs. When the actual amount reaches or exceeds the target, the control unit immediately stops heating, ensuring reliable fabric treatment performance while preventing water and energy wastage from excessive steam production.
Solution Approach 2:
The patent replaces manual timing and estimation methods with an automated electronic control system that uses sensors and microprocessor-based calculations to precisely control steam generation. This substitution of mechanical/manual control with electronic feedback control enables accurate matching of steam production to actual treatment requirements.
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 enables precise steam cycles according to user inputs, preventing insufficient steam and energy wastage, while maintaining compatibility with standard machines without additional costs, ensuring optimal fabric treatment and energy efficiency.
Implementation Method 1
a heating element of the steam generator heating the water present in the steam generation chamber to generate steam
Implementation Method 2
water for the conversion to steam thereof
Implementation Method 3
heating the water present in the steam generation chamber to generate steam
Data Source
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AI summary
A fabric treating appliance provided with steam generation, allows to provide steam cycles according to the user's inputs and settings with precise amounts of generated steam, and comprises a steam generator having a heater for evaporating water, a control unit apt to determine partial amounts of evaporated water evaporated by the steam generator and measured according to a sampling rate, said control unit comprising a processing unit capable of summing the partial amounts of evaporated water in order to obtain an actual value of total amount of evaporated water, and a heater controller apt to turning off the heater if the actual value of total amount of evaporated water exceeds a preset threshold value of evaporated water.