Removable Injection Cartridge for Anti-Reflux Valve Maintenance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing devices for injecting corrective fluids into water treatment systems are difficult to maintain, pose safety risks due to valve wear and burial within connection devices, leading to potential leaks and the need for entire device replacement.
Innovation Solution
An injection cartridge with anti-reflux means and holding structures featuring clipping or bayonet attachment mechanisms for easy assembly and disassembly, reducing direct contact with corrective fluids and allowing for secure, quick maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the valve is integrated within the connection device to prevent backflow, then the anti-reflux function is improved, but the valve becomes difficult to access and replace
Solution Approach 1:
The device is divided into separate functional modules: the connection device remains fixed while the cartridge containing the valve and diffuser becomes a removable assembly. This segmentation allows the anti-reflux function to remain integrated and reliable, while the cartridge can be easily accessed and replaced without disturbing the connection device.
Solution Approach 2:
The valve and diffuser are extracted from the fixed connection device and placed into a removable cartridge assembly. This extraction allows maintenance personnel to access and replace the valve by simply removing the cartridge, eliminating the need to disassemble the connection device while maintaining the integrated anti-reflux function.
2Reliability
If the valve is buried within the connection device, then the anti-reflux protection is improved, but maintenance operations become dangerous due to direct contact with corrective fluid
Solution Approach 1:
The system is segmented into a fixed connection device and a removable cartridge containing the valve and diffuser. This segmentation creates a maintenance boundary that protects users from corrective fluid exposure during valve replacement, while the integrated cartridge design maintains reliable anti-reflux protection during normal operation.
Solution Approach 2:
The cartridge acts as an intermediary component between the connection device and the corrective fluid source. During maintenance, removing the cartridge provides a safe barrier that prevents direct contact with corrective fluid, while the cartridge's integrated design ensures anti-reflux protection remains effective during operation.
3Reliability
If the entire device must be replaced due to valve wear, then the anti-reflux function is maintained, but the cost and complexity increase
Solution Approach 1:
The device is segmented into a permanent connection device and a replaceable cartridge containing the valve and diffuser. This segmentation allows only the cartridge to be replaced when the valve wears, maintaining the anti-reflux function through the new cartridge while avoiding the need to replace the entire connection device, thereby reducing cost and complexity.
Solution Approach 2:
The cartridge is designed as a disposable or easily replaceable component containing the wear-prone valve and diffuser. When these components wear, the entire cartridge is replaced rather than individual parts, which is cost-effective and maintains the anti-reflux function without requiring complex repair procedures or replacement of the expensive connection device.
4Ease of repair
If a thin tool is used to remove the valve by leverage, then the valve can be accessed, but correction fluid splashes onto fingers and potentially into eyes
Solution Approach 1:
The valve removal operation is segmented into two safe steps: first, remove the cartridge from the connection device using hand operation; second, remove the valve from the cartridge in a controlled environment. This segmentation eliminates the need to use thin tools within the connection device, preventing corrective fluid splash exposure while maintaining ease of repair.
Solution Approach 2:
The valve is extracted from the sealed connection device environment and placed in the removable cartridge. This extraction allows the valve to be removed from the cartridge in a controlled manner away from the corrective fluid reservoir, eliminating the hazard of fluid splash that would occur if the valve were manipulated directly within the connection device using thin tools.
Data Source
Figure 1~4D
Figure 5~6
AI summary
The invention relates to an injection cartridge (1) configured to be disposed downstream of a source (2) comprising a first liquid, and to open into a second liquid. The cartridge comprises: - an anti-reflux means (5) configured to block liquid movement towards the source (2), and - at least one retaining structure (7, 8) configured to retain the anti-reflux means (5), characterized in that said at least one retaining structure (7, 8) comprises attachment means for securing the anti-reflux means, and in that the cartridge forms a removable assembly. The invention also relates to an associated processing apparatus (25).