Fish Farm Oxygen Supply System with Mechanical Bypass
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Fish farms require a reliable and easily maintainable oxygen supply system that can function continuously and independently of electrical power, as existing systems are prone to failures during power outages.
Innovation Solution
A dual-line oxygen supply system with an electrically driven main supply line and a purely mechanical bypass line, along with manually operable switching valves, ensures continuous oxygen flow by allowing the mechanical line to take over in case of electrical failures, and modular design for easy maintenance and scalability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If an electrically driven flow control device is used in the main supply line for automated remote control, then the ease of operation and automation are improved, but the reliability deteriorates because the system fails during power outages
Solution Approach 1:
The oxygen supply system is segmented into two independent flow paths: a main supply line with electrically driven flow control for automated operation, and a bypass line with purely mechanical flow control for emergency operation. This segmentation allows the system to maintain automated control capabilities while ensuring continuous operation during power failures by switching to the mechanical bypass line.
Solution Approach 2:
The system changes the operational parameter of the flow control device from exclusively electrical to a dual-mode system that can operate in either electrical mode (main supply line) or mechanical mode (bypass line). This parameter change enables the system to adapt to different operational conditions, particularly power availability, while maintaining continuous oxygen supply.
2Reliability
If a purely mechanical flow control device is used in the bypass line for emergency supply, then the reliability is improved by ensuring operation during power outages, but the ease of operation deteriorates due to manual intervention requirements
Solution Approach 1:
The mechanical flow control device in the bypass line is pre-configured with manual control capabilities, allowing operators to quickly switch to emergency operation without complex decision-making during power failures. The bypass line is designed to be ready-for-use, requiring only simple manual activation to ensure continuous oxygen supply.
Solution Approach 2:
The bypass line with mechanical flow control acts as an intermediary emergency supply path that activates when the main electrical system fails. This intermediary system provides a fallback mechanism that balances reliability improvement with acceptable operational complexity through simple manual control.
3Reliability
If both main supply line and bypass line are designed to provide complete oxygen supply, then the reliability through redundancy is improved, but the device complexity increases
Solution Approach 1:
The oxygen supply system is divided into two independent, functionally complete segments: the main supply line with electrical flow control and the bypass line with mechanical flow control. Each segment is capable of providing complete oxygen supply independently, creating redundancy while maintaining manageable complexity through clear functional separation.
Solution Approach 2:
Both the main supply line and bypass line are designed with universal capability to provide complete oxygen supply to the fish tanks. This multi-functionality ensures that either line can independently sustain system operation, achieving high reliability through redundancy while using standardized components to control complexity.
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 provides a redundant oxygen supply that maintains fish tank oxygen levels during power outages and allows for efficient maintenance without interrupting operations, ensuring the health and safety of aquatic animals.
Implementation Method 1
The first flow control device is for instance a mass flow controller (MFC) or an electrically driven proportional valve
Implementation Method 2
The first flow control device is for instance a mass flow controller (MFC) or an electrically driven proportional valve, in particular a solenoid valve
Implementation Method 3
The second flow control device is preferably a manually adjustable variable-area flow meter, in particular with an integrated needle valve, e.g. a regulator with a rotameter
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
A fish farm oxygen supply system (10) has at least one oxygen supply line (18), each oxygen supply line (18) comprising a main supply line (20) and a bypass line (22) bypassing the main supply line (20), a first flow control device (24) being arranged in the main supply line (20) and a second flow control device (26) being arranged in the bypass line (22). The first flow control device (24) is an electrically or electronically driven device and the second flow control device is a purely mechanical device.