Distribution Pipe Hole Layout for Uniform Refrigerant Flow
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Solution Overview
Problem
Existing heat exchangers face challenges in achieving uniform refrigerant distribution, which affects their efficiency.
Innovation Solution
A heat exchanger design featuring a distribution pipe with strategically placed through holes and a support assembly, ensuring even refrigerant distribution to multiple heat exchange tubes within a collecting pipe, enhancing uniformity and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If refrigerant is distributed to multiple heat exchange tubes, then heat exchange capacity increases, but refrigerant distribution uniformity deteriorates
Solution Approach 1:
The distribution pipe is segmented into multiple sections with through-holes at different positions along its length. Each section distributes refrigerant to specific heat exchange tubes, creating localized distribution zones that improve overall uniformity while maintaining high heat exchange capacity
Solution Approach 2:
Through-holes are strategically positioned at different locations along the distribution pipe to create non-uniform local distribution characteristics. The first through-hole is positioned between the third and fourth heat exchange tubes, while other through-holes are positioned to serve different tubes, ensuring each tube receives appropriate refrigerant flow based on its specific location and heat exchange requirements
Data Source
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AI summary
Disclosed in the present application is a heat exchanger. The heat exchanger comprises a collecting pipe, heat exchange pipes, and a distribution pipe. There are a plurality of heat exchange pipes, a first end of each heat exchange pipe penetrates a pipe wall of the collecting pipe and is inserted into the collecting pipe, and the heat exchange pipes communicate with the collecting pipe. A first end of the distribution pipe is a fluid inlet, and a second end of the distribution pipe is closed and extends from the first end of the collecting pipe into the collecting pipe. A pipe wall of the distribution pipe has a plurality of through holes that communicate with the collecting pipe and the distribution pipe, and the plurality of through holes are a first through hole,... an n-1th through hole and an n-th through hole arranged successively along the direction from the first end to the second end of the distribution pipe, wherein the distance between an i+1th through hole and an ith through hole is: di=αiL0, i= 1,2,...n-1, α=0.618, L0, which is the distance between adjacent heat exchange pipes. The heat exchanger of the present application may improve the uniformity of refrigerant distribution in the heat exchanger.