Analysis of the technical characteristics and applications of liquid-cooled hoses for data centers
I. liquid - cooling hoseMain Purposes
As a key connecting component of the liquid - cooling and heat - dissipation system, the liquid cooling hose in the data center is mainly used to achieve the transmission of coolant between servers and the cold source. In high - density computing power scenarios (such as AI server clusters and supercomputing centers), its core functions include:
Heat - exchange medium conduction: Export the heat generated by the server to the heat - dissipation unit through the circulation of the coolant.
System flexible connection: Adapt to the complex wiring environment inside the cabinet and achieve flexible docking between equipment and cold plates/cooling radiators.
Flow dynamic adjustment: Cooperate with valve components to achieve precise control of the cooling flow at the single - node or regional level.
II. Structural Composition
The liquid cooling hose adopts a multi - layer composite structure design, and its typical architecture includes:
Inner fluid channel: Made of modified EPDM rubber or PTFE material, it has the characteristics of resistance to coolant corrosion (compatible with water - based, mineral oil, fluorinated liquid, etc.) and a low coefficient of friction.
Reinforcement layer: A braided polyester fiber or stainless - steel wire mesh structure, with a working pressure of up to over 1.6MPa and a burst pressure of not less than 4.8MPa.
Outer protection: Made of flame - retardant polyolefin material, it meets the UL94 V - 0 fire - resistance requirement, and also has anti - ultraviolet aging and wear - resistance properties.
Interface components: Adopt a quick - insert buckle design, equipped with an EPDM sealing ring, support blind - insertion operation, and the leakage rate is ≤1×10⁻⁶ Pa·m³/s.
III. liquid - cooling hoseTechnical Advantages
Compared with the traditional metal pipeline system, the liquid - cooling hose has the following significant advantages:
Installation flexibility: The minimum bending radius can reach three times the diameter of the pipe, adapting to deployment in narrow spaces and reducing the demand for elbow fittings by more than 90%.
Vibration absorption: The elastic structure can absorb the vibration generated by the operation of the server, reducing the risk of fatigue damage to the pipeline system.
Heat loss control: The composite structure design makes the thermal conductivity coefficient ≤0.2W/(m·K), reducing the heat - dissipation loss by 40% compared with metal pipelines.
Maintenance convenience: Supports quick plug - and - play replacement, reducing the maintenance time to 1/5 of that of the traditional pipeline system.
System compatibility: Can be adapted to mainstream liquid - cooling solutions (cold - plate type, immersion type, spray type), with a temperature application range of - 40°C to 120°C.
IV. liquid - cooling hoseKey Parameters
As the requirements for the PUE value in data centers become increasingly strict (GB50174 - 2017 requires ≤1.4), liquid - cooling technology is moving from marginal applications to mainstream deployment. As the "blood vessels" in the system, the material innovation and structural optimization of liquid - cooling hoses will directly affect the reliability and deployment cost of the liquid cooling solution. Currently, the industry is developing towards low - permeability materials, intelligent flow monitoring, and standardization of quick - connectors. It is expected that by 2025, the market size of liquid - cooling hoses will exceed 1.2 billion yuan, with a compound annual growth rate remaining above 35%.
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