Refillable Water Treatment Cartridge With Depletion Visibility
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Solution Overview
Problem
Existing water treatment cartridges for heating and cooling systems are disposable, leading to resource inefficiency and difficulty in determining depletion, with fragile viewing windows and plastic connections prone to wear.
Innovation Solution
A reusable water treatment cartridge with a reversibly sealed opening, allowing recyclable processing material to be added or removed, and a transparent closure for monitoring material depletion, using two types of treatment materials with different color changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cartridge is designed as disposable with irreversible sealing, then the structure is simple and reliable, but resource efficiency deteriorates and environmental friendliness worsens
Solution Approach 1:
The cartridge is divided into separable components: the container body and the closure element. The closure element can be removed to access the treatment material, enabling selective replacement of only the consumable material while retaining the durable container structure. This segmentation resolves the contradiction by allowing the cartridge to be reusable (improving resource efficiency) while maintaining structural integrity through the permanent container body.
Solution Approach 2:
The invention enables recovery and reuse of the container body after the treatment material is exhausted. Only the consumable treatment material needs to be replaced, while the container structure is recovered and can be refilled. This principle directly addresses the contradiction by transforming the disposable cartridge into a reusable system, improving resource efficiency without compromising the reliability of the container structure.
2Loss of information
If a viewing window is added to monitor material depletion, then visibility of material state improves, but the structure becomes more complex and the viewing window becomes fragile
Solution Approach 1:
The treatment material itself changes color as it becomes depleted, providing visual indication of its state. This eliminates the need for separate viewing windows or monitoring mechanisms. The color-changing property of the material directly solves the information visibility problem while avoiding the structural complexity and fragility associated with adding viewing windows to the cartridge.
3Reliability
If the opening is permanently sealed for reliability, then connection reliability improves, but ease of operation deteriorates when material replacement is needed
Solution Approach 1:
The closure element is designed as a separable component that can be easily removed and reattached to the container body. This segmentation allows the opening to be reliably sealed during operation while enabling easy access for material replacement. The simple snap-fit or threaded connection between closure and container body maintains reliability when closed but provides ease of operation when opening is needed.
Solution Approach 2:
The closure element transitions between two states: securely attached during operation (providing reliable sealing) and easily removable for maintenance (providing operational ease). This dynamic design allows the same structure to serve contradictory functions at different times - maintaining reliability when the cartridge is in use and facilitating easy material replacement when needed.
4Loss of substance
If treatment material is made recyclable and removable, then resource efficiency improves, but the container design becomes more complex
Solution Approach 1:
The treatment material is contained in a separate, removable form within the container, allowing it to be extracted, recycled, and reused independently from the container structure. This segmentation enables material recyclability while keeping the container design relatively simple - essentially just a container with a removable closure. The complexity increase is minimal compared to the benefit of material recyclability.
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
Enables resource-efficient reuse of cartridges, easy monitoring of material depletion, and prevents misuse of treatment materials, while maintaining effective ion removal in heating and cooling systems.
Implementation Method 1
The container holds the mixed bed, for example, an ion exchange material, which is surrounded by the water to be treated as it flows from the inlet 42 to the outlet 43, thus capturing or adsorbing the unwanted ions
Implementation Method 2
capturing or adsorbing the unwanted ions
Implementation Method 3
The material can be designed to change color as it is consumed
Data Source
Figure 1
Figure 2a
Figure 2b
AI summary
A cartridge (100) for treating water from a water circuit (31) has a container (101) for receiving treatment material (205, 206), an inlet port (102) on the container (101) for reversibly connecting the cartridge (100) to an inlet line (38) or a water source (36), and an outlet port (103) on the container (101) for reversibly connecting the cartridge (100) to an outlet line (37) or the water circuit (31), wherein the container (101) has a container body (105) and therein an opening (106) that can be reversibly closed with a closure (104), through which the treatment material (205, 206) can be removed from the container (101) and introduced into the container (101).