Distributed composite refrigeration system and data center

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing distributed data center refrigeration systems are inefficient in recycling heat, leading to resource waste due to their inability to effectively manage heat dissipation in large, centralized data centers with numerous servers.

Innovation Solution

A distributed composite refrigeration system is implemented, featuring multiple refrigeration units strategically positioned throughout the data center, each connected to a multichannel heat exchanger that allows for centralized heat dissipation and energy recycling by transferring heat to an external pipe network, enhancing energy conservation and environmental protection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a distributed refrigeration system is used to cool large data centers, then refrigeration coverage is improved, but heat recycling efficiency deteriorates

Engineering Contradiction:
Improverefrigeration coverage areaVSAvoidheat recycling efficiency
Core Design Contradiction:
Area of stationary objectVSLoss of energy

Solution Approach 1:

The patent merges multiple distributed refrigeration units into a coordinated system that shares a common heat dissipation channel. Each refrigeration unit serves its local area while all units collectively discharge heat through a shared heat exchanger connected to an external pipe network, combining the benefits of distributed cooling coverage with centralized heat recycling efficiency.

Inventive Principle:
Principle #5Merging (Combining)

2Temperature

If heat is dissipated locally at each refrigeration unit, then refrigeration effectiveness is improved, but energy waste increases

Engineering Contradiction:
Improvelocal cooling effectivenessVSAvoidenergy waste
Core Design Contradiction:
TemperatureVSLoss of energy

Solution Approach 1:

The system segments the heat dissipation function into two parts: local heat absorption by distributed refrigeration units (maintaining effective temperature control) and centralized heat discharge through a shared heat exchanger (enabling energy recycling). This segmentation allows each unit to maintain local cooling effectiveness while the aggregated heat from all units is efficiently recycled through the external pipe network.

Inventive Principle:
Principle #1Segmentation

3Reliability

If multiple refrigeration units operate independently, then system reliability is improved, but resource utilization deteriorates

Engineering Contradiction:
Improvesystem reliabilityVSAvoidresource utilization
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The external pipe network serves as a universal heat discharge infrastructure that can accommodate heat from multiple refrigeration units simultaneously. This multi-functional channel enables resource utilization optimization by recycling heat from any or all operating units, while the distributed architecture maintains system reliability through operational independence of individual refrigeration units.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system achieves better energy conservation and balanced temperature control within the data center by efficiently recycling heat, providing a reliable refrigeration solution for large data centers and reducing energy consumption.

Implementation Method 1

each connected to a multichannel heat exchanger that allows for centralized heat dissipation and energy recycling by transferring heat to an external pipe network

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Data Source

PatentEP4102946B1Distributed composite refrigeration system and data center
Publication Date: 2023.11.22 HUAWEI DIGITAL POWER TECH CO LTD
  • EP4102946B1 patent drawingFigure 1
  • EP4102946B1 patent drawingFigure 2
  • EP4102946B1 patent drawingFigure 3

AI summary

This application provides a distributed composite refrigeration system. The system includes a multichannel heat exchanger and at least two refrigeration units. The at least two refrigeration units are connected to at least two indoor areas in one-to-one correspondences. Each refrigeration unit includes a refrigeration part, a heat exchange part, and a heat dissipation part. A refrigerant flows between the refrigeration part and the heat exchange part, an intermediate medium flows in the heat exchange part, and the refrigerant and the intermediate medium implement heat exchange at the heat exchange part. The heat exchange part delivers the intermediate medium obtained after heat exchange to the heat dissipation part and/or the multichannel heat exchanger for heat dissipation. The multichannel heat exchanger is thermally connected to an external pipe network, and the intermediate medium performs heat exchange with a heat carrying body in the external pipe network. In the distributed composite refrigeration system in this application, the intermediate medium is concentrated in the multichannel heat exchanger for heat exchange with the external pipe network, so that heat generated during operation of the distributed composite refrigeration system can be at least partially transferred to the heat carrying body of the external pipe network, to implement energy recycle. This application further provides a data center.