Spliced Microchannel Heat Exchanger with Opposed Airflow Baffles
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Solution Overview
Problem
Ultra-large microchannel heat exchangers in data centers face inefficiencies due to inconsistent shrinkage during brazing, leading to gaps between spliced products that cause air leakage and reduced heat exchange efficiency.
Innovation Solution
A connecting structure with oppositely disposed baffles on both sides of the heat exchange bodies to block airflow through the connecting gap, enhancing wind protection and eliminating the need for manual wrapping, while maintaining efficient splicing operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple heat exchange bodies are spliced together in the width direction to achieve ultra-large microchannel heat exchanger, then the heat exchange area is increased, but gaps between spliced products occur due to inconsistent shrinkage during brazing, causing air leakage and reduced heat exchange efficiency
Solution Approach 1:
A baffle structure is introduced as an intermediary component between the spliced heat exchange bodies. The baffle extends into the connecting gap to physically block airflow and prevent air leakage, while allowing the heat exchange bodies to maintain their spliced configuration for increased heat exchange area. The baffle acts as a mediator that seals the gap without requiring the heat exchange bodies themselves to be perfectly sealed.
2Reliability
If manual wrapping methods are used to prevent air leakage through connecting gaps, then sealing performance is improved, but the splicing operation efficiency is reduced
Solution Approach 1:
The baffle structure is designed to be automatically positioned and sealed during the standard splicing and brazing process. The baffle extends from one heat exchange body into the connecting gap, and the brazing process itself seals the baffle to the heat exchange bodies. This eliminates the need for separate manual wrapping operations, as the sealing function is integrated into the existing manufacturing process, thereby maintaining high productivity while achieving reliable sealing.
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
Improves heat exchange efficiency by preventing airflow through the connecting gap, thus addressing the inefficiencies of splicing operations in microchannel heat exchangers.
Implementation Method 1
a first baffle and a second baffle, the first baffle and the second baffle being respectively located on two opposite sides of the first heat exchange body and the second heat exchange body, the first baffle and the second baffle being oppositely disposed, and the connecting gap being located between the first baffle and the second baffle
Implementation Method 2
a first heat exchange body and a second heat exchange body which are configured to transfer heat
Implementation Method 3
a first heat exchange body and a second heat exchange body which are configured to transfer heat
Data Source
AI summary
The present disclosure provides a heat exchanger. The heat exchanger includes a first heat exchange body and a second heat exchange body which are configured to transfer heat, the first heat exchange body and the second heat exchange body are connected with each other, and a connecting gap being provided between the first heat exchange body and the second heat exchange body; and a first baffle and a second baffle, the first baffle and the second baffle are respectively located on two opposite sides of the first heat exchange body and the second heat exchange body, the first baffle and the second baffle being oppositely arranged, and the connecting gap being located between the first baffle and the second baffle.