线性降温在液冷温控系统的应用研究OA

The insufficient cooling rate of liquid cooling temperature control systems in the low-temperature range from-40℃to 0℃)is addressed by a dual-system cooperative design(primary+auxiliary)and an optimized fuzzy PID control strategy.The operational parameters of the system are analyzed through experimental studies.Experimental analysis of the system's operational parameters demonstrates that precooling the heat transfer fluid below-40℃via the auxiliary system and its dynamic intervention in the primary system within the range from-40℃to 0℃enable optimized regulation.A fuzzy PID algorithm,driven by exhaust temperature difference,adjusts the cold-water valve opening,resolving hydraulic imbalance in the reservoir.Combined with optimized circulating fluid volume,this approach achieves linear cooling across the entire temperature range(-40℃to 80℃)at a rate of(6±0.5)℃/min,significantly enhancing the system's low-temperature performance.The system supports both linear and non-linear operational modes,allowing independent start/stop functionality for the auxiliary subsystem in non-linear mode,enabling energy savings exceeding 30%and expanding industrial application adaptability.