A method and system for collaborative control of immersion liquid cooling and waste heat recovery

By decomposing the outlet temperature of the immersion liquid cooling system into components of instantaneous heat generation and heat storage release, calculating the heat flow distribution ratio, and generating a collaborative control strategy, the problem of conflict between heat dissipation and waste heat recovery control in the immersion liquid cooling system is solved, achieving dynamic balance and robustness.

CN122161075BActive Publication Date: 2026-09-08HANGZHOU SUANXIANG TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202610629459.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-05-09
Publication Date
2026-09-08
Estimated Expiration
2046-05-09

AI Technical Summary

Technical Problem

Existing immersion liquid cooling systems cannot effectively distinguish between the instantaneous heat generated by the chip and the temperature change caused by the release of heat stored in the coolant, leading to a conflict between heat dissipation and waste heat recovery control, resulting in a contradiction between low recovery efficiency and sluggish heat dissipation response.

Method used

By extracting heat transfer characteristics, the outlet temperature is decomposed into an instantaneous heat generation component and a heat storage and release component. Based on real-time power consumption and temperature sequence, the heat flow distribution ratio is calculated, and a collaborative control strategy is generated to achieve precise collaborative control of heat dissipation and waste heat recovery.

Benefits of technology

It achieves a dynamic balance between heat dissipation and waste heat recovery, avoids control conflicts, improves the robustness and accuracy of the control method, and adapts to changes in environment and operating conditions.

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Abstract

The application discloses a kind of immersion liquid cooling and waste heat recovery collaborative control method and system, method includes with fixed sampling period obtains the real-time power consumption sequence of chip side and the real-time outlet temperature sequence measured by liquid cooling cabinet;Based on real-time power consumption sequence and real-time outlet temperature sequence, extract heat transfer characteristic;Based on heat transfer characteristic and real-time power consumption sequence, obtain the outlet temperature component only by chip instant heat contribution, recorded as instant temperature component;Based on instant temperature component and real-time outlet temperature sequence, determine the temperature component of cooling liquid heat storage release contribution, recorded as heat storage temperature component;According to instant temperature component and heat storage temperature component, calculate heat flow distribution ratio by preset distribution parameter;According to heat flow distribution ratio, generate heat dissipation and waste heat recovery collaborative control strategy.The application can realize the collaborative optimization control of heat dissipation and waste heat recovery by effectively identifying heat component.
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