Two-phase immersion cooling system, working fluid recovery device and method
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Solution Overview
Problem
Existing two-phase immersion cooling systems face challenges with high coolant costs and gas phase leakage, leading to inefficient heat dissipation and environmental impact due to greenhouse gas emissions.
Innovation Solution
A working fluid recovery device and method that includes an air moving unit, water removal unit, working fluid recovery unit, and condenser to recover vapor phase working fluid and exhaust non-condensable gases, maintaining system efficiency and reducing greenhouse gas emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If two-phase immersion cooling is used to improve heat dissipation efficiency, then cooling performance is improved, but working fluid leakage and greenhouse gas emissions increase
Solution Approach 1:
The patent uses a non-condensable gas (inert atmosphere) in the sealed enclosure to prevent working fluid vapor from escaping into the environment. The gas creates a protective atmosphere that maintains pressure and prevents harmful emissions while allowing effective heat dissipation through the two-phase cooling process.
Solution Approach 2:
The patent converts the potentially harmful working fluid vapor that would otherwise escape and cause greenhouse gas emissions into a beneficial cycle by condensing it in the condenser and returning it to the cooling bath. The vapor that could be harmful is instead recovered and reused, turning a harmful emission problem into a closed-loop benefit.
2Temperature
If two-phase immersion cooling is used to improve heat dissipation efficiency, then cooling performance is improved, but system complexity and sealing requirements increase
Solution Approach 1:
The patent merges the cooling bath, sealed enclosure, condenser, and working fluid recovery system into an integrated unit. The condenser is positioned within the sealed enclosure, and the working fluid circulation system combines multiple functions (cooling, condensation, and recovery) into a unified system, reducing overall complexity despite the advanced functionality.
Solution Approach 2:
The system is designed to automatically manage working fluid levels and condensation cycles without external intervention. The sealed enclosure self-regulates pressure, and the condenser automatically condenses and returns vapor to the cooling bath, reducing the need for complex external sealing and monitoring systems.
3Productivity
If working fluid is continuously circulated to maintain cooling efficiency, then heat dissipation is improved, but working fluid loss and replacement costs increase
Solution Approach 1:
The patent implements a recovery system that captures working fluid vapor that would otherwise be lost, condenses it back to liquid form, and returns it to the cooling bath. This discarding-and-recovering approach ensures continuous heat dissipation efficiency while preventing working fluid loss and reducing replacement costs.
Solution Approach 2:
The system maintains continuous circulation and condensation of working fluid, ensuring uninterrupted heat dissipation. The condenser operates continuously to convert vapor back to liquid, and the recovered fluid is immediately returned to the cooling bath, maintaining continuous useful action without interruption or loss.
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
Improves working fluid circulation efficiency and reduces costs by recovering vapor phase working fluid, minimizing gas phase loss and greenhouse gas emissions.
Implementation Method 1
The condenser is connected to the working fluid recovery unit, and configured to condense the vapor phase of the working fluid into a liquid phase of the working fluid
Implementation Method 2
The air moving unit is configured to suck in a mixed gas including a non-condensable gas, a steam and a vapor phase of working fluid
Implementation Method 3
The water removal unit is connected to the air moving unit, and configured to remove the steam
Data Source
AI summary
A working fluid recovery device includes an air moving unit, a water removal unit, a working fluid recovery unit, a condenser, and a working fluid collection tank. The air moving unit is configured to suck in a mixed gas including a non-condensable gas, a steam and a vapor phase of working fluid. The water removal unit is connected to the air moving unit, and configured to remove the steam. The working fluid recovery unit is connected to the water removal unit, and configured to recover the vapor phase of the working fluid and exhaust the non-condensable gas. The condenser is connected to the working fluid recovery unit, and configured to condense the vapor phase of the working fluid into a liquid phase of the working fluid. The working fluid collection tank is connected to the condenser, and configured to store the liquid phase of the working fluid.