System Separation Device Gas Cushion Germ Control
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Solution Overview
Problem
Existing system separation devices face reliability issues, high humidity leading to germ spread, and require frequent air refilling to maintain the air cushion, which can introduce contamination risks and increase energy consumption.
Innovation Solution
A system separation device with a tank having a gas cushion pressurized by the liquid inlet, equipped with a level sensor to automatically refill the gas cushion, UV light sources for germicidal action, and antimicrobial coatings to prevent germ migration, reducing the need for pumps and minimizing air refilling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the reservoir is designed as a pressure vessel with a free inlet, then the risk of contamination via air exchange is greatly reduced, but the volume of the air cushion decreases during operation requiring expensive air refilling devices
Solution Approach 1:
The patent changes the physical state of the gas cushion by introducing a hydrophobic coating on the inner wall of the pressure vessel. This coating alters the interaction between the gas cushion and the wall surface, preventing gas dissolution and maintaining constant volume without requiring refilling devices
Solution Approach 2:
The patent replaces the expensive air refilling device with a simple, inexpensive hydrophobic coating that is applied to the pressure vessel wall. This coating provides a long-lasting solution without requiring active refilling mechanisms
2Reliability
If the pressure vessel is used to maintain separation, then system separation reliability is improved, but high humidity facilitates germ spreading along the walls and via the air cushion
Solution Approach 1:
The patent converts the harmful effect of high humidity into a beneficial one by using the hydrophobic coating to create a gas-filled barrier. The same pressure vessel that creates humidity problems also becomes the medium for maintaining a dry, germ-free gas cushion that prevents contamination
Solution Approach 2:
The patent creates an inert, germ-free environment by maintaining a gas cushion that does not support germ growth or migration. The hydrophobic coating ensures this gas cushion remains stable and prevents germ contamination of the gas phase
3Productivity
If pumps are used to dispense liquid from the pressure vessel, then liquid delivery is achieved, but energy consumption increases
Solution Approach 1:
The patent enables the pressure vessel to dispense liquid automatically using the stored pressure energy without requiring external pumps. The system serves itself by converting the potential energy stored in the pressurized liquid into kinetic energy for automatic dispensing
Solution Approach 2:
The patent changes the pressure parameter within the vessel to enable pump-free dispensing. By maintaining appropriate pressure levels and using pressure-regulating mechanisms, the system achieves liquid delivery through pressure-driven flow rather than mechanical pumping
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
Enhances reliability by reducing germ migration, minimizing energy consumption, and eliminating the need for expensive air refilling systems, while maintaining effective separation between fluid systems.
Implementation Method 1
the gas cushion above the liquid level is under the pressure produced by (associated with) the inlet, i.e. the pressure being applied by the inlet to the tank pressurizes the gas bubble(s) and the outlet
Implementation Method 2
at least one UV light source (16) is arranged in the tank (10). The UV light source (16) is configured to kill germs on the inner wall and in the liquid
Implementation Method 3
The inlet is configured to feed the tank from a first fluid system (for instance, by adding fresh water)
Implementation Method 4
the pressure being applied by the inlet to the tank pressurizes the gas bubble(s) and the outlet
Data Source
AI summary
A system separation device with at least one pressure-proof tank for containing a liquid that forms a predetermined liquid level in the tank, above which level there is a gas cushion. The device contains an inlet in the upper region of the tank for fluidly feeding the tank from a first fluid system, and an outlet in the lower region of the tank for forwarding the liquid to a second fluid system. To prevent the germ-infestation of the inlet, at least one germicide material is arranged in the region of a gas cushion above the liquid level.