Server Immersion Cooling Condensation Control to Prevent Fluid Leakage
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Solution Overview
Problem
Existing two-phase immersion liquid-cooled systems for servers face issues with fluorinated liquid leakage and safety risks when the cover is opened for maintenance, leading to economic loss and reduced heat dissipation efficiency.
Innovation Solution
A control device with a condensing module, flow guide driving member, and gas-liquid separator is used to manage the phase change of the heat dissipation medium, preventing leakage and maintaining pressure within the system, ensuring efficient condensation and heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a two-phase immersion liquid-cooled system uses an enclosed box body with cover plate, then heat dissipation efficiency is improved, but fluorinated liquid leakage occurs when the cover plate is opened for maintenance
Solution Approach 1:
A flow guide driving member is introduced as an intermediary component between the vapor source and the condensing coil. This member actively guides the fluorinated liquid vapor toward the condensing coil, preventing direct contact with the cover plate and subsequent leakage when opened. The intermediary redirects the vapor flow path to achieve both efficient heat dissipation and leakage prevention.
2Ease of operation
If the cover plate is opened for server maintenance, then accessibility is improved, but fluorinated liquid leaks to the outside causing economic loss and safety risks
Solution Approach 1:
The flow guide driving member acts as a mediator that maintains vapor flow control even when the cover plate is opened. It ensures vapor is directed to the condensing coil rather than escaping with the opened cover, thus maintaining operational ease while preventing substance loss.
Solution Approach 2:
The system preemptively addresses the leakage issue by establishing a controlled vapor flow path before the cover plate is opened. The flow guide driving member pre-directs vapor toward the condensing coil, creating a protective flow pattern that prevents leakage even when maintenance requires opening the cover.
3Device complexity
If gaseous heat dissipation working medium flows freely in the box body, then phase change circulation is simplified, but the gaseous medium impacts the cover plate and reduces condensation efficiency
Solution Approach 1:
The flow guide driving member serves as an intermediary that introduces minimal complexity to the system. It actively directs vapor flow toward the condensing coil, preventing random movement and cover plate impact. This targeted guidance significantly improves condensation efficiency by ensuring vapor reaches the condensing surface effectively.
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 solution enhances condensation efficiency, reduces fluorinated liquid leakage during maintenance, and maintains system stability, thereby increasing heat dissipation efficiency and safety.
Implementation Method 1
a condensing coil, arranged in the box body and configured to assist phase change of the heat dissipation working medium, so as to achieve heat dissipation circulation
Implementation Method 2
the gas-liquid separator is arranged at an outlet of the flow guide driving member, and the gas-liquid separator is configured to separate an air and a droplet-shaped heat dissipation working medium
Data Source
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Figure 3
Figure 4~5
AI summary
Disclosed are a device for controlling heat dissipation of a server and a method for controlling heat dissipation of a server. The device for controlling heat dissipation of a server comprises a box body, a cover plate, a heat dissipation working medium and a condensing module, wherein the server is arranged in the box body, and the cover plate is configured to close the box body; the heat dissipation working medium is arranged in the box body and is used for heat dissipation of the server; and the condensing module is arranged on the box body. The condensing module comprises a condensing coil and a flow guide driving member, wherein the condensing coil is arranged in the box body, and the condensing coil is configured to assist phase change of the heat dissipation working medium, so as to achieve heat dissipation circulation; and the flow guide driving member is arranged towards the condensing coil, and the flow guide driving member is configured to provide a driving force to control the heat dissipation working medium in a steam/gas state to flow towards the condensing coil. The device for controlling heat dissipation of a server can increase the condensation efficiency, thereby increasing the heat dissipation efficiency; in addition, the leakage of a fluorinated liquid when the cover of the box body is opened for maintenance of the server can be solved, so that not only the loss of the fluorinated liquid can be reduced, but also the problem of potential safety risks caused by the leakage of the fluorinated liquid can be solved, thereby improving the safety.