Concentric Path Heat Exchanger Plate Design

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Solution Overview

Problem

Current heat transfer plates for plate heat transformers face challenges in achieving high heat exchange efficiency and low flow resistance while minimizing the risk of fouling and maintaining structural integrity.

Innovation Solution

The heat transfer plate design features structural elements arranged in concentric paths, particularly circular railways, on a flat envelope with a base plate, allowing for efficient guidance of working media between inlet and outlet areas, made from heat-conductive materials like stainless steel, with specific arrangements to promote counter-current or cross-flow principles and mirror symmetry for enhanced performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If structural elements are arranged in conventional patterns on heat transfer plates, then the plate can guide working media from inlet to outlet, but heat exchange efficiency is limited and flow resistance increases

Engineering Contradiction:
Improveheat exchange efficiencyVSAvoidflow resistance
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The structural elements are arranged along concentric circular paths around a reference point in the inlet or outlet area, creating a radial flow pattern that improves heat exchange efficiency while reducing flow resistance compared to conventional linear arrangements

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The invention transitions from conventional linear or grid patterns to a two-dimensional radial concentration pattern, with all structural elements organized around a central reference point, creating efficient flow paths in multiple directions simultaneously

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Productivity

If multiple heat transfer plates are used to achieve high heat exchange efficiency, then thermal performance improves, but device complexity and system size increase

Engineering Contradiction:
Improveheat exchange efficiencyVSAvoidnumber of plates
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The heat transfer plate design with concentric circular structural elements can be universally applied in various plate heat exchanger configurations, allowing a single plate design to achieve high heat exchange efficiency without requiring multiple specialized plates

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention combines multiple flow guidance functions into a single plate design with concentric circular structural elements that simultaneously manage fluid distribution, heat exchange, and flow collection, reducing the need for additional plates

Inventive Principle:
Principle #5Merging (Combining)

3Productivity

If structural elements are densely arranged to improve heat exchange, then thermal efficiency increases, but flow resistance and fouling risk increase

Engineering Contradiction:
Improveheat exchange efficiencyVSAvoidfouling risk
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The concentric circular arrangement creates smooth curved flow paths that reduce turbulence and dead zones where fouling could accumulate, while maintaining sufficient structural element density for effective heat exchange

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The structural elements are strategically positioned along concentric circles at optimal intervals, providing sufficient heat exchange surface area while maintaining adequate flow channels to prevent fouling, rather than uniform dense distribution

Inventive Principle:
Principle #3Local quality

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 achieves advantageous high heat exchange efficiency, low flow resistance, and reduced fouling risk, ensuring effective operation and potentially reducing the need for multiple heat transfer plates in plate heat transformer systems.

Implementation Method 1

Heat exchanger plate for a plate heat exchanger, for transferring heat from one working medium to another working medium

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

structural elements for guiding the working medium and/or the other working medium from the inlet area to the outlet area

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentEP3715764B1Heat exchanger plate
Publication Date: 2022.11.30 BOSCH TERMOTEKNIK ISITMA & KLIMA SANAYI TICARET ANONIM SIRKETI SANAYI & TICARET AS
  • EP3715764B1 patent drawingFigure 1
  • EP3715764B1 patent drawingFigure 2
  • EP3715764B1 patent drawingFigure 3

AI summary

The invention relates to a heat exchanger plate for a plate heat exchanger, for the transfer of heat from one working medium to another working medium of the plate heat exchanger, with at least one inlet area (14a; 14b; 14c) and an outlet area (16a; 16b; 16c) for the working medium and/or for the other working medium, and with a plurality of structural elements (18a, 19a; 18b, 19b; 18c, 19c) for guiding the working medium and/or the other working medium from the inlet area (14a; 14b; 14c) to the outlet area (16a; 16b; 16c). It is proposed that the structural elements (18a, 19a; 18b, 19b; 18c, 19c) are arranged along several at least substantially concentric paths (20a, 21a), in particular circular paths, around a reference point (22a; 22b; 22c) located in the inlet area (14a; 14b; 14c) and/or in the outlet area (16a; 16b; 16c).