Conical Coil Heat Exchanger for Space-Limited Cooling Access
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Solution Overview
Problem
Conventional heat exchangers face challenges in efficiently transferring heat due to space constraints and maintenance accessibility, as they often require lengthy straight pipes that occupy significant space and can be cumbersome, especially in industrial settings where space is limited and instrumentation is hard to reach.
Innovation Solution
The design incorporates a fluid heat exchanger with a conical coil and fins, where the tube is formed into stacked rings of decreasing diameter, allowing for a compact, efficient heat transfer system that can be vertically oriented, reducing space requirements while maintaining effective heat transfer through natural convection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional heat exchangers use lengthy straight pipes, then heat transfer effectiveness is maintained, but space occupation increases and maintenance accessibility deteriorates
Solution Approach 1:
The patent applies curvature by forming the heat exchanger tube into a conical coil configuration instead of using straight pipes. The tube is bent into a spiral shape with a conical profile, where the diameter decreases along the length of the coil. This curved configuration allows the heat exchanger to occupy significantly less space while maintaining the required heat transfer surface area and effectiveness.
Solution Approach 2:
The patent transitions from a linear one-dimensional arrangement of straight pipes to a three-dimensional conical coil structure. By utilizing vertical and radial dimensions, the heat exchanger achieves compact packaging while preserving the effective heat transfer length. The conical coil arrangement stacks multiple loops of decreasing diameter, effectively using space in multiple dimensions rather than extending linearly.
2Productivity
If conventional heat exchangers use lengthy straight pipes, then heat transfer effectiveness is maintained, but maintenance accessibility improves, but space occupation increases
Solution Approach 1:
The conical coil configuration concentrates the heat transfer surface into a compact vertical structure, making the entire heat exchanger more accessible for maintenance operations. Instrumentation and controls are positioned at the top and bottom of the vertical assembly, allowing easy access without requiring disassembly of lengthy pipe sections.
Solution Approach 2:
The heat exchanger is designed as a self-contained modular unit with the conical coil, instrumentation, and controls integrated into a compact assembly. This segmentation allows the entire heat exchanger to be treated as a single replaceable module, simplifying maintenance and installation while maintaining heat transfer effectiveness.
3Area of stationary object
If conventional heat exchangers are designed for compactness, then space occupation reduces, but heat transfer effectiveness deteriorates due to reduced effective length
Solution Approach 1:
The conical coil configuration maintains a long effective heat transfer length by arranging the tube in a spiral pattern with multiple loops. Although the overall footprint is compact, the tube length is preserved through the coiled arrangement, ensuring sufficient heat transfer surface area while occupying minimal space.
Solution Approach 2:
The heat exchanger utilizes vertical space through the conical coil arrangement, stacking multiple loops of decreasing diameter from top to bottom. This three-dimensional arrangement preserves the effective heat transfer length by extending the tube in the vertical dimension rather than requiring horizontal space, thereby maintaining heat transfer effectiveness in a compact footprint.
4Ease of manufacture
If conventional heat exchangers use straight pipes, then manufacturing simplicity is maintained, but back pressure increases due to longer fluid path
Solution Approach 1:
The conical coil configuration shortens the fluid path length compared to straight pipes by arranging the tube in a compact spiral. The fluid travels through the coiled tube in a more direct path, reducing the overall flow distance and thereby decreasing back pressure while still providing sufficient heat transfer surface area.
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 configuration increases the effective length of the heat exchanger, enhancing efficiency while providing easy access to instrumentation and controls, and reduces back pressure, making it suitable for space-constrained industrial applications.
Implementation Method 1
Heat is then transferred from the higher temperature fluid to the lower temperature fluid across the thermally conductive material, cooling the higher temperature fluid and warming the lower temperature fluid
Implementation Method 2
In some processes, the second fluid may be allowed to passively move across the heat exchanger through naturally occurring wind or natural convection where a flow is induced by adding heat to the secondary fluid
Data Source
AI summary
Heat exchangers include at least one looped tube having at least one section that is laterally offset from another section of the looped tube. Fluid cooling systems and seal systems may include such heat exchangers.