Liquid Cooling Cabinet Control Method for Thermal Load Management
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Solution Overview
Problem
Existing liquid cooling systems struggle to quickly reach thermal equilibrium when the thermal load of a load device suddenly increases due to the slow control response of the liquid medium, leading to overheating and potential system shutdowns.
Innovation Solution
A liquid cooling cabinet equipment and control method that includes a power sensor to predict thermal load changes, adjusting the rotation speed of a circulation motor to manage coolant flow in a secondary fluid loop pipeline, which exchanges heat with a primary fluid loop pipeline through a heat exchanger, thereby precoiling the thermal load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a liquid cooling system is used to dissipate heat from the load device, then the heat dissipation efficiency is improved due to higher heat conductivity of liquid medium, but the control response becomes slower, causing the system to cannot quickly reach thermal equilibrium when thermal load suddenly increases
Solution Approach 1:
The control device receives power load information from the power sensor and proactively adjusts the circulation motor speed before thermal equilibrium is compromised. By monitoring power consumption in real-time and preemptively increasing coolant flow when load increases are detected, the system prevents overheating scenarios rather than reacting after temperatures rise, thus maintaining both efficient heat dissipation and rapid response capability
Solution Approach 2:
The system implements a closed-loop feedback mechanism where the power sensor continuously monitors the power consumption of the load device and transmits this information to the control device. The control device processes this feedback and dynamically adjusts the circulation motor speed accordingly, creating a responsive control system that adapts to changing thermal loads in real-time, thereby resolving the contradiction between efficient heat dissipation and rapid response
2Device complexity
If the liquid cooling system operates with fixed coolant flow, then the system structure is simple, but the system cannot adapt to sudden changes in thermal load, leading to overheating
Solution Approach 1:
The system transitions from a static, fixed-flow coolant delivery system to a dynamic, variable-flow system. The circulation motor speed is no longer constant but is dynamically adjusted by the control device based on real-time power load information from the power sensor. This dynamic adaptation allows the coolant flow rate to match the actual thermal demands of the load device, maintaining thermal equilibrium stability without requiring an overly complex system architecture
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
This solution allows the liquid cooling system to effectively manage sudden increases in thermal load, preventing overheating and maintaining system stability by proactively adjusting coolant flow based on power load information, thus alleviating the limitations of traditional liquid cooling systems.
Implementation Method 1
after exchanging heat with the load device, the coolant in the secondary fluid loop pipeline exchanges heat with another coolant in the primary fluid loop pipeline through the heat exchanger
Implementation Method 2
exchanges heat with another coolant in the primary fluid loop pipeline through the heat exchanger
Implementation Method 3
The circulation motor is configured to drive a coolant in the liquid storage tank to circulate in the secondary fluid loop pipeline
Data Source
AI summary
Disclosed is a liquid cooling cabinet equipment including a load device, a power supply device for supplying power to the load device and a liquid cooling system, which includes a liquid storage tank, a primary fluid loop pipeline, a secondary fluid loop pipeline connected to the liquid storage tank, a heat exchanger, a circulation motor, a power sensor, and a control device. The circulation motor drives a coolant in the liquid storage tank to circulate in the secondary fluid loop pipeline. After exchanging heat with the load device, the coolant in the secondary fluid loop pipeline exchanges heat with another coolant in the primary fluid loop pipeline through the heat exchanger. The control device controls a rotation speed of the circulation motor based on an output power of the power supply device sensed by the power sensor to adjust a flow of the coolant in the secondary fluid loop pipeline.