Pressure Relief Structure for Immersion Cooling Seal Chambers
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Solution Overview
Problem
Existing pressure control systems in seal chambers of servers fail to effectively manage air pressure fluctuations caused by coolant gasification, leading to potential deformation or damage of equipment.
Innovation Solution
A pressure protection device with a sliding block and adjusting block mechanism that adjusts gas holes to balance air pressure by selectively communicating with ambient environment, utilizing magnetic and gravitational forces to manage positive and negative pressure changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pressure protection device is not used, then the seal chamber structure remains simple, but air pressure increases uncontrollably causing equipment deformation or damage
Solution Approach 1:
The pressure protection device utilizes the pressure difference itself to drive the sliding block, which in turn opens the gas hole to release pressure. The system automatically responds to pressure changes without external control, using the harmful pressure as the driving force for its own protection mechanism.
Solution Approach 2:
The patent replaces complex electronic pressure sensing and control systems with a simple mechanical structure consisting of a sliding block, gas hole, and pressure chamber. The mechanical design directly translates pressure differential into mechanical motion to open or close the pressure relief path.
2Reliability
If the gas hole remains open to communicate with ambient environment, then air pressure is balanced, but coolant evaporation efficiency decreases due to pressure loss
Solution Approach 1:
The gas hole transitions from a static open/closed design to a dynamic state controlled by the sliding block. The opening size and state automatically adjust based on real-time pressure conditions, allowing the system to maintain pressure balance when needed while preserving evaporation efficiency during normal operation.
Solution Approach 2:
The pressure protection device applies pressure balancing only locally at the pressure chamber level rather than throughout the entire seal chamber. This localized approach allows the main coolant evaporation zone to maintain optimal pressure conditions while still providing protection where needed.
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
Effectively maintains stable air pressure within the seal chamber, preventing equipment deformation and damage by dynamically adjusting to pressure differences.
Implementation Method 1
one of the sliding block and the adjusting block is a magnetic block, and the other is a metal block
Implementation Method 2
utilizing magnetic and gravitational forces to manage positive and negative pressure changes
Data Source
AI summary
A pressure protection device includes a housing, a sliding block, and an adjusting block. The housing includes a receiving chamber communicating with a seal chamber and the housing defines a first gas hole and a second gas hole each communicating the receiving chamber to an ambient environment. The sliding block divides the receiving chamber into a first space and a second space and defines a through hole communicating the first space with the second space. The adjusting block is located in the first space and configured to be attracted to the sliding block so that the through hole is selectively blocked by the adjusting block. When the sliding block slides in the receiving chamber, the first gas hole is selectively blocked by the sliding block to isolate from or to communicate with the first space, and the second gas hole always communicates with the second space.