Underwater Ventilation Capsule Pressure Management
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Solution Overview
Problem
Current emergency ventilation systems for underwater environments, such as submarines or welding habitats, require large and expensive equipment to manage high-pressure air transfer, leading to health risks for operators and inefficiencies in decompression procedures.
Innovation Solution
A system comprising a capsule immersed in water, connected to a supply device and compressor, which adjusts gas pressure and composition to safely ventilate the underwater environment, using ducts to transfer air and exhaust gases while maintaining stable pressure and breathable air quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-pressure air is used to ventilate the underwater environment, then the air can reach the underwater environment and return to surface, but the pressure increase inside the underwater environment causes health risks for operators
Solution Approach 1:
The system divides the air transfer process into two independent one-way pathways: a supply duct for delivering pressurized air to the underwater environment, and a separate return duct for extracting exhaust air. This segmentation allows pressure management to be optimized independently for each direction, enabling safe operation pressures while maintaining reliable ventilation.
Solution Approach 2:
The system introduces an intermediary air lock chamber between the underwater environment and the surface equipment. This intermediary space acts as a pressure buffer, allowing the underwater environment to maintain stable operating pressure while exhaust air is gradually equalized before being discharged to surface atmosphere, thereby protecting operators from pressure-related health risks.
2Reliability
If huge equipment is used to direct pressurized air and allow air to escape in surface, then the ventilation function is achieved, but the equipment becomes expensive and complex
Solution Approach 1:
The system separates the complex surface-based equipment into modular components distributed between the surface (compressor, supply tank) and the underwater environment (air lock chamber, exhaust treatment system). Each module performs a specific function independently, simplifying the overall system architecture and reducing the need for massive integrated surface equipment.
Solution Approach 2:
The underwater environment's exhaust system is designed to be self-sufficient by incorporating an on-site air lock chamber and exhaust treatment capability. The system handles its own exhaust air processing and pressure equalization locally, eliminating the need for complex surface-based air escape infrastructure and reducing overall equipment requirements.
3Productivity
If high-pressure air is pushed to the underwater environment, then air movement is facilitated, but the pressure increase requires operators to be kept in a decompression chamber
Solution Approach 1:
The system maintains high air movement efficiency through the pressurized supply duct while simultaneously providing a separate controlled decompression pathway through the air lock chamber. Operators can breathe fresh pressurized air during operations and then gradually decompress through the air lock without interrupting the efficient air supply to the environment, thus maintaining productivity while reducing decompression time losses.
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 is cost-effective, reduces health risks for operators, and maintains stable pressure within the underwater environment, allowing for efficient and safe ventilation without the need for extensive surface-based equipment.
Implementation Method 1
one compressor (9) for the exhaust of the gas arrived inside the capsule (4) through the duct (8) from the underwater environment (2) into the water
Implementation Method 2
a supply device (3) for providing a gas containing oxygen, in particular air; a capsule (4) adapted to be immersed in water... The supplying device (3) is suitable to be (and during the use is) placed outside of the water in an environment substantially dry
Data Source
Figure 1
Figure 2
AI summary
System for emergency ventilation of an underwater environment (2) (dry); the system (1) includes a supply device (3) to supply air; a capsule (4) to be immersed in water to a depth of at least 60 meters; a duct (6) to fluidically connect the power device (3) to the capsule (4); a duct (7) in order to fluidically connect the capsule (4) to the underwater environment (2); a duct (8) to fluidically connect the underwater environment (2) to the capsule (4); a compressor (9) to discharge the gas, arriving in the capsule (4) from the underwater environment (2), in water at a depth of at least 60 meters.