Liquid Cooling System Centralized Pump Control
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Solution Overview
Problem
Current liquid cooling systems face issues with flow equalization, oscillations in pump and valve adjustments, energy inefficiency, and reduced service life due to independent control of multiple liquid cooling units connected in parallel, leading to instability and performance degradation.
Innovation Solution
A liquid cooling system with a cooling control apparatus that shares and analytically processes liquid sample data from multiple second-level liquid circulation loops, sending synchronized control signals to circulating pumps to maintain a uniform running state, thereby avoiding oscillations and improving energy management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple liquid cooling units are connected in parallel with independent control units, then the heat dissipation capacity is improved, but the system stability deteriorates due to oscillations in pump and valve adjustments
Solution Approach 1:
The patent merges multiple independent control units into a centralized control system that coordinates all circulating pumps and adjusting valves. The control unit receives liquid flow data from all channels and generates unified control signals, eliminating the oscillations caused by independent adjustments while maintaining the heat dissipation capacity of multiple parallel liquid cooling units.
2Use of energy by moving object
If circulating pumps in different liquid cooling units operate at different rotation speeds, then the energy consumption is reduced, but the reliability deteriorates due to flow inequality and pump breakdown risks
Solution Approach 1:
The control unit continuously monitors liquid flow data from all channels and uses this feedback to adjust the rotation speeds of circulating pumps. This ensures that each pump operates at an appropriate speed for its channel's heat dissipation needs, preventing both energy waste from uniform high-speed operation and reliability issues from excessive speed differences.
3Ease of operation
If adjusting valves perform separate adjustments in multiple liquid cooling units, then the localized cooling control is improved, but the service life of valves deteriorates due to cyclical regulation oscillations
Solution Approach 1:
The patent combines the control of multiple adjusting valves into a centralized control system that coordinates their operations. The control unit generates unified adjustment signals based on overall system liquid flow data, eliminating the cyclical oscillations caused by independent valve adjustments while maintaining the ability to provide localized cooling control.
4Power
If multiple circulating pumps run simultaneously with independent control, then the heat dissipation effectiveness is improved, but the energy consumption increases due to proportional relationship between pump energy and rotation speed cubed
Solution Approach 1:
The patent implements dynamic control of circulating pump rotation speeds based on real-time liquid flow data from each channel. The control unit adjusts pump speeds dynamically to match the actual heat dissipation needs, preventing energy waste from pumps running at constant high speeds while ensuring sufficient cooling capacity when 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
This solution ensures stable operation, prolongs the service life of pumps and valves, and effectively dissipates heat by synchronizing the operation of circulating pumps, reducing energy consumption and maintaining system balance.
Implementation Method 1
each of the second-level liquid circulation loops is provided with a circulating pump configured to control a liquid flow
Implementation Method 2
at least two second-level liquid circulation loops configured to dissipate heat of a to-be-cooled device
Data Source
AI summary
A liquid cooling system and a control method thereof are disclosed. The liquid cooling system includes at least two second-level liquid circulation loops and a cooling control apparatus. One second-level liquid circulation loop is provided with a circulating pump configured to control a liquid flow and a sensing apparatus configured to acquire liquid sample data. The control method includes acquiring liquid sample data using sensing apparatuses of a liquid cooling system; implementing sharing of the liquid sample data of the sensing apparatuses using a cooling control apparatus, performing analytical processing on the liquid sample data, and calculating a circulation regulation value of circulating pumps; and sending the circulation regulation value to the circulating pumps using the cooling control apparatus, such that the circulating pumps run according to the circulation regulation value.