System and method for scale management in water heating system
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Solution Overview
Problem
Scale build-up in water heating systems, particularly in tankless water heaters, leads to reduced service life and efficiency of downstream components due to clogging, necessitating improved scale management solutions.
Innovation Solution
A system for collecting scale from water in water heating appliances, comprising a reservoir with a filter and a collection chamber, where water flows through a filter that separates scale from the water, allowing it to collect in an upstream section before exiting through an outlet, thereby preventing downstream clogging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If water flows through a filter to capture scale, then scale collection efficiency is improved, but device complexity increases
Solution Approach 1:
The reservoir interior is segmented into an upstream section and a downstream section by the filter, which divides the water flow path. This segmentation allows scale to be captured in the upstream section while clean water flows to the downstream section, improving scale collection efficiency while maintaining a relatively simple overall structure.
Solution Approach 2:
The filter acts as an intermediary element between the incoming water and the downstream components. It intercepts scale particles from the water flow, preventing them from reaching downstream components. This intermediary function captures scale effectively while adding only a single filter element to the system.
2Reliability
If a collection chamber is added to capture scale, then downstream component protection is improved, but device complexity increases
Solution Approach 1:
The collection chamber is merged with the reservoir structure, utilizing the reservoir's existing volume to house both the filter and the collection chamber. The upstream section of the reservoir serves as the collection chamber, eliminating the need for a separate standalone collection device and reducing overall system complexity while still providing downstream component protection.
Solution Approach 2:
The reservoir serves multiple functions: it stores water, houses the filter, and provides the collection chamber for scale accumulation. This multi-functionality allows the system to protect downstream components without adding dedicated separate structures, thereby maintaining simplicity while improving reliability.
3Device complexity
If scale is allowed to build up, then device complexity is reduced, but service life and efficiency of downstream components deteriorate
Solution Approach 1:
The filter and collection chamber perform preliminary action by capturing scale before it can reach and accumulate on downstream components. This preventive measure protects downstream components from scale buildup that would otherwise reduce their service life and efficiency, while maintaining a simple system structure.
Solution Approach 2:
The harmful scale particles that would normally damage downstream components are converted into a collectible byproduct. The filter and collection chamber intercept these scale particles, transforming them from a harmful substance into a separable material that can be periodically removed, thereby protecting downstream components without complex intervention systems.
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 system effectively captures at least 90% of scale, reducing downstream clogging and maintaining efficiency and service life of components by facilitating regular removal of collected scale.
Implementation Method 1
A filter is positioned within the interior of the reservoir and the filter is oriented to traverse the water pathway and divide the interior of the reservoir into an upstream section into which the water flows from the inlet and a downstream section from which the water flows to the outlet
Implementation Method 2
A collection chamber is configured to receive scale as the water flows along the water pathway through the interior of the reservoir and the water passes through the filter
Data Source
AI summary
In one example, a system for collecting scale from water in a water heating appliance includes a reservoir having an interior, an inlet through which the water flows into the interior, and an outlet through which the water flows from the interior, the inlet, the outlet, and the interior defining a water pathway. A filter is positioned within the interior of the reservoir and the filter is oriented to traverse the water pathway and divide the interior of the reservoir into an upstream section into which the water flows from the inlet and a downstream section from which the water flows to the outlet. A collection chamber is configured to receive scale as the water flows along the water pathway through the interior of the reservoir and the water passes through the filter. The collection chamber is positioned in or adjacent the upstream section of the interior of the reservoir.