Two-phase immersion liquid cooling gas phase pressure regulation method and system based on PID control

By using a two-phase immersion liquid-cooled gas phase pressure regulation method based on PID control, the gas phase space pressure state is evaluated and adjusted in real time, solving the problem of lag in the response of liquid-cooled gas pressure regulation in the prior art. This enables rapid adaptation to sudden thermal disturbances and multi-condition adaptation, improving the thermal stability and safety of the system.

CN121957181BActive Publication Date: 2026-07-21TIANJIN TIER TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TIANJIN TIER TECHNOLOGY CO LTD
Filing Date
2026-04-01
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing liquid cooling pressure regulation schemes lack real-time feedback modeling and continuous dynamic control capabilities for the gas-liquid interaction mechanism, resulting in lag in pressure regulation response, oscillation of valve control action, or local overpressure in the cavity, affecting the heat exchange efficiency and equipment safety boundary of the system. In particular, when disturbed by factors such as condenser lag, asymmetric heat exchange of evaporator, and inertia limitation of bidirectional pump, the regulation lag and overshoot amplitude are large.

Method used

A two-phase immersion liquid-cooled gas phase pressure regulation method based on PID control is adopted. By collecting and preprocessing ambient temperature, pressure and volume data, a standardized gas-liquid control dataset is constructed. Combined with the dynamic adjustment of elastic airbag and bidirectional pump, the pressure state of the gas phase space can be evaluated and regulated in real time, and the inflation and deflation force of the elastic airbag and the inlet and outlet rate of the bidirectional pump can be dynamically adjusted.

Benefits of technology

It achieves high-frequency dynamic response to pressure fluctuations in the evaporation zone, improves the system's ability to quickly adapt to sudden thermal disturbances, reduces the risk of structural fatigue, avoids regulation lag or over-adjustment, and enhances the multi-condition adaptability of the regulation system.

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Abstract

The application discloses a two-phase immersion liquid cooling gas phase pressure regulation method and system based on PID control and relates to the technical field of liquid cooling gas pressure regulation.The two-phase immersion liquid cooling gas phase pressure regulation method and system based on PID control comprises the following steps: S1, collecting and preprocessing environmental temperature data, pressure and volume data and execution feedback data in a liquid cooling gas pressure regulation process, and constructing a standardized gas-liquid control data set; S2, evaluating the pressure state of a gas phase space and dynamically adjusting the charging and discharging operation strength of an elastic air bag; S3, analyzing the gas pressure regulation trend and adjusting the air inlet and exhaust rates of a bidirectional pump in real time; and S4, comprehensively analyzing the current state of the closed gas phase space and driving the amplitude adjustment of a volume regulation instruction.The problems that a target pressure value lacks a joint adaptive mechanism for altitude changes and load dynamics and is difficult to support precise matching control of the evaporation and condensation processes are solved.
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