Three-Chamber Negative-Pressure Liquid Cooling System
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Solution Overview
Problem
Existing negative pressure liquid cooling systems experience unstable coolant flow during chamber switching, affecting overall cooling efficiency due to the time required to establish negative pressure, leading to potential pipeline aging and leakage issues.
Innovation Solution
A smoothly switching negative pressure liquid cooling system with three chambers, where one chamber maintains a negative pressure environment during switching, utilizing a gas circuit and liquid circuit with independent control valves and sensors to ensure rapid and stable coolant flow by alternately cycling through different pressure states, ensuring continuous coolant circulation and heat exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-chamber or double-chamber negative pressure liquid cooling system is used, then the system structure is simpler, but the coolant flow becomes unstable during chamber switching
Solution Approach 1:
The system is divided into three independent chambers (first chamber, second chamber, third chamber) that can operate independently. Each chamber has its own control valves for gas extraction and gas supply, allowing one chamber to maintain negative pressure while others switch states, thereby stabilizing overall coolant flow during transitions.
2Productivity
If chamber switching is performed rapidly, then cooling efficiency is improved, but negative pressure establishment time causes flow instability
Solution Approach 1:
The system pre-establishes negative pressure in the chamber that is about to receive coolant. By using control valves to maintain negative pressure in advance in the target chamber, the system eliminates the delay associated with establishing negative pressure during switching, enabling rapid and stable coolant flow.
3Ease of operation
If positive pressure liquid cooling is used, then coolant flow is easier to control, but pipeline aging and leakage risks increase
Solution Approach 1:
The system maintains a negative pressure environment throughout the liquid cooling circuit, creating an 'inert' condition where atmospheric pressure prevents external contaminants from entering and internal pressure prevents coolant leakage. This inherent safety feature eliminates pipeline aging and leakage risks while maintaining reliable coolant flow control through electronic valves.
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 maintains stable coolant flow and prevents pipeline issues by quickly establishing and alternating negative and positive pressure environments, enhancing cooling efficiency and safety by preventing coolant leakage.
Implementation Method 1
the gas extraction pipeline extracts gas by using a vacuum pump
Implementation Method 2
Under the pressure of the high-pressure chamber, the water enters the cold plate for heat exchange
Implementation Method 3
the water enters the cold plate for heat exchange
Data Source
AI summary
A smoothly switching negative pressure liquid cooling system is provided in the present application, wherein a gas extraction pipeline of a gas circuit is used to extract gas to form a negative pressure environment, a gas supply pipeline is used to supply the gas to form a positive pressure environment. One of the three gas-liquid chambers is used for feeding the liquid and one of the three gas-liquid chambers is used for discharging the liquid to form a coolant circulation. The other chamber maintains a negative pressure environment. At the moment of switching a working state, the chamber that maintains the negative pressure environment forms a large pressure difference, so that the coolant enters the chamber quickly. Before the working state is switched, enough negative pressure has been formed to ensure the fluidity of the coolant at the moment of switching the working state.