Heat Pipe With Inner Pipe Separating Fluid Channels
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current heat pipes lack a fluid distribution system for liquid and gaseous working fluids, leading to interference and reduced cooling efficiency as both phases flow through the same channel.
Innovation Solution
A heat pipe design featuring an outer pipe with a composite capillary structure and an inner pipe that divides the accommodating chamber into separate channels for gaseous and liquid working fluids, preventing interference and enhancing fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If liquid and gaseous working fluids flow in the same channel without fluid distribution, then the heat pipe structure is simple, but the gaseous and liquid working fluids interfere with each other, reducing cooling efficiency
Solution Approach 1:
The patent divides the single channel into multiple channels using an inner pipe and partition walls. The accommodating chamber is segmented into a first channel for gaseous working fluid and a second channel for liquid working fluid. This segmentation prevents interference between phases while maintaining efficient heat dissipation, resolving the contradiction between structural simplicity and cooling efficiency.
2Productivity
If an inner pipe is added to divide the accommodating chamber into separate channels, then cooling efficiency is improved by preventing fluid interference, but the heat pipe structure becomes more complex
Solution Approach 1:
The patent employs a nested structure where an inner pipe is placed inside the outer pipe, and the composite capillary structure is positioned between them. The inner pipe contains partition walls that further divide the space. This nesting approach achieves channel separation for improved cooling efficiency while maintaining a compact and relatively simple overall structure.
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 separates gaseous and liquid working fluids during the cooling cycle, allowing them to flow without resistance, thereby improving cooling efficiency.
Implementation Method 1
after the liquid working fluid in a heat pipe absorbs heat at a vaporization end of the heat pipe, the liquid working fluid vaporizes into the gaseous working fluid, and a vapor pressure drives the gaseous working fluid to flow to a condensation end of the heat pipe
Implementation Method 2
After the gaseous working fluid releases heat at the condensation end and is condensed into the liquid working fluid
Implementation Method 3
the liquid working fluid flows back to the vaporization end via a capillary structure inside the heat pipe
Data Source
AI summary
A heat pipe including an outer pipe, a composite capillary structure and an inner pipe. The outer pipe includes a vaporization section, a condensation section and a transmission section. The vaporization section and the condensation section are connected to two opposite sides of the transmission section. The outer pipe has an accommodating chamber. The accommodating chamber extends from the vaporization section to the condensation section. The composite capillary structure is located in the accommodating chamber of the outer pipe. The inner pipe is located in the accommodating chamber in the transmission section. The inner pipe divides the accommodating chamber in the transmission section into an inner channel and an outer channel. The inner channel and the outer channel are in fluid communication with the accommodating chamber in the vaporization section and the condensation section. The composite capillary structure is partially located in the outer channel.