一种风液同源式数据中心空调一体机及其控制方法

By using a three-valve decoupled control architecture and a PID model, independent adjustment of the cooling capacity of the air-cooled side and the liquid-cooled side in the integrated air-cooled data center air conditioning unit with the same air-liquid source is realized, which solves the problem of mutual interference in cooling capacity control in the existing technology and improves the utilization rate of natural cooling sources and system energy efficiency.

CN122421301APending Publication Date: 2026-07-17ZHONGLIAN YUNGANG DATA TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHONGLIAN YUNGANG DATA TECH CO LTD
Filing Date
2026-05-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing data center cooling systems with the same air-liquid source, the cooling capacity control of the air-cooled side and the liquid-cooled side is coupled and cannot be independently and continuously adjusted. This results in natural cold source and mechanical refrigeration being mutually exclusive and switching, making it difficult to meet the on-demand cooling requirements of flexible air-liquid ratio.

Method used

A three-valve decoupled control architecture is adopted. The first regulating valve independently regulates the cooling capacity on the air-cooled side, the second regulating valve independently regulates the cooling capacity on the liquid-cooled side, and the third regulating valve regulates the cooling capacity of the compressor's supplementary cooling circuit in supplementary cooling mode. Combined with a PID model, continuous adjustment of cooling capacity and mode switching are achieved, ensuring the decoupled and coordinated operation of cooling capacity distribution between the air-cooled and liquid-cooled sides.

Benefits of technology

It enables independent adjustment of cooling capacity on the air-cooled and liquid-cooled sides, improves the utilization rate of natural cooling sources and system energy efficiency, solves the problem of mutual interference in cooling capacity control in existing technologies, and meets the cooling needs of data centers under different operating conditions.

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Abstract

本发明涉及数据中心冷却技术领域,针对现有风液同源系统中风冷侧自然冷与机械制冷无法协同供冷、液冷侧冷量缺乏独立调节手段的问题。本发明第一调节阀以出风温度为PID目标独立调节风冷侧冷量,第二调节阀以液冷供回水温差或设定流量为PID目标独立调节液冷侧冷量,第三调节阀在补冷模式下以压缩机冷凝压力为PID目标调节补冷回路冷却水量,将风冷侧、液冷侧和压缩机补冷回路作为三个独立控制对象实现闭环解耦。在此基础上引入多参数复合模式切换逻辑,通过预设条件组合判断,使自然冷与机械制冷从互斥切换转变为协同供冷,同时确保液冷侧在模式切换过程中保持独立调节不受影响。本发明适用于弹性风液比需求的数据中心制冷场景。
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Citation Information

Patent Citations

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  • Air-liquid homogenization system based on submarine prefabricated modular data center and its implementation method

    CN120529571B