Stacking-Type Header Flow Layout to Suppress Refrigerant Heat Loss
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Solution Overview
Problem
The existing stacking-type headers experience significant heat exchange loss due to the interaction between superheated refrigerant and low-temperature refrigerant flowing through different passages, leading to inefficient heat transfer.
Innovation Solution
A stacking-type header design that includes a first plate-shaped unit with multiple outlet and inlet flow passages and a second plate-shaped unit with distribution and joining flow passages, featuring through portions or concave regions to optimize refrigerant flow and reduce heat exchange loss, where the refrigerant is distributed and joined efficiently across the units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If superheated refrigerant flows through the region between inlet flow passages and outlet flow passages in the stacking-type header, then the refrigerant can be distributed and collected, but heat exchange loss occurs due to heat transfer between superheated refrigerant and low-temperature refrigerant
Solution Approach 1:
The patent introduces a heat insulating member as an intermediary substance placed in the region between the outlet flow passage and inlet flow passage. This heat insulating member acts as a mediator that prevents direct heat transfer between the superheated refrigerant and low-temperature refrigerant, thereby reducing heat exchange loss while maintaining the refrigerant distribution function
Solution Approach 2:
The patent extracts the harmful heat exchange function from the header structure by removing the thermal connection between adjacent flow passages. By taking out the unwanted heat transfer path and replacing it with a heat insulating member, the design eliminates the energy loss while preserving the necessary refrigerant flow distribution
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
This design effectively suppresses heat exchange loss by optimizing the flow passages and distribution within the header, enhancing the overall efficiency of the refrigerant transfer and heat exchange process.
Implementation Method 1
the at least one plate-shaped member has a through portion or a concave portion formed in at least a part of a region between the flow passage through which the refrigerant passes to flow into the plurality of first inlet flow passages and the flow passage through which the refrigerant passes to flow into the second inlet flow passage
Data Source
AI summary
A stacking-type header according to the present invention includes: a first plate-shaped unit; and a second plate-shaped unit, in which the first plate-shaped unit or the second plate-shaped unit comprises at least one plate-shaped member having formed therein: a flow passage formed in the first plate-shaped member through which the refrigerant passes to flow into the plurality of first inlet flow passages; and a flow passage formed in the second plate-shaped member through which the refrigerant passes to flow into the second inlet flow passage, and in which the at least one plate-shaped member has a through portion or a concave portion formed in at least a part of a region between the flow passage through which the refrigerant passes to flow into the plurality of first inlet flow passages and the flow passage through which the refrigerant passes to flow into the second inlet flow passage.