Gravity-Fed Steam Generator with Removable Scale Collection Container
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Solution Overview
Problem
Household steam appliances suffer from progressive clogging due to scale deposits in the supply pipe, making it difficult for users to assess and manage scaling, leading to appliance malfunction.
Innovation Solution
Incorporating a removable scale collection container and filtration device with calibrated openings in the steam generator's pipe system, allowing for easy visualization and removal of scale particles, preventing their return to the boiling chamber, and enabling ergonomic maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a removable plug is provided to allow evacuation of scale particles, then the supply circuit can be emptied to limit progressive clogging, but the user cannot easily visualize the scaling state and scale particles are carried away too quickly to assess the situation
Solution Approach 1:
A transparent or translucent window is integrated into the evacuation duct, serving as an intermediary that allows users to visually observe scale deposits inside the duct without removing the plug. This mediator enables assessment of the scaling state while maintaining the sealed system integrity.
Solution Approach 2:
The window is made transparent or translucent, changing the optical properties of the duct wall to allow visual penetration. This enables users to see through the otherwise opaque duct material and assess the accumulation of scale particles inside.
2Reliability
If a large quantity of water is circulated through the supply circuit to make draining effective, then scale particles can be evacuated, but the operation becomes more complex and requires more resources
Solution Approach 1:
The window allows users to self-assess the scaling state and determine when evacuation is needed, eliminating the need for complex monitoring systems. Users can visually detect scale accumulation and perform maintenance based on actual conditions rather than fixed schedules.
Solution Approach 2:
Instead of requiring complete system draining with large water quantities, the design allows for partial evacuation operations. Users can remove the plug to evacuate scale particles as needed, performing only the necessary amount of draining based on visual assessment through the window.
3Ease of repair
If the plug is made removable for maintenance access, then the supply circuit can be emptied, but scale particles may be returned to the boiling chamber during reassembly
Solution Approach 1:
The window is extracted from the plug structure and integrated into the duct wall separately. This allows the plug to remain in place for sealing while the window provides observation capability, eliminating the need to remove the plug for assessment and reducing the risk of contamination during maintenance.
Solution Approach 2:
The window serves as a permanent intermediary observation point that does not require removal or reassembly. This eliminates the opening/closing cycle of the plug that could potentially introduce contaminants, while still providing full visual access to the scale accumulation state.
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 effectively collects and visualizes scale deposits, allowing users to adapt cleaning frequency and prevent clogging, ensuring the appliance's efficiency and longevity.
Implementation Method 1
a water reservoir (4) comprising an outlet orifice (41) through which the water flows by gravity towards the boiling chamber (52)
Implementation Method 2
these scale particles rising in the supply pipe towards the tank during the back and forth movements of the liquid in the supply conduit
Implementation Method 3
a filtration device with calibrated openings in the steam generator's pipe system, allowing for easy visualization and removal of scale particles, preventing their return to the boiling chamber
Implementation Method 4
the removal of the plug allowing the water and part of the pie contained in the device to be evacuated
Data Source
Figure 1
Figure 2~4
Figure 5~6
AI summary
Household appliance comprising a base (1) for the production of steam including a steam generator (5) comprising a boiling chamber (52) and a liquid reservoir (4) supplying the boiling chamber (52) by gravity, the liquid flowing by gravity from the reservoir (4) to the boiling chamber until the liquid level in the boiling chamber (52) reaches an equilibrium level, called the reference level, at which the liquid level prevents air from entering the reservoir (4), the boiling chamber (52) comprising a steam outlet (50) through which the steam can escape towards a working tool (3), such as a steaming brush, and a communication orifice (55) connected to a pipe (6; 106) having a discharge orifice (60; 160) closed by a removable plug (7; 107), characterized in that the pipe (6; 106) includes a container (8;108) removable scale collector via the drain opening (60;160).;