Modular Heat Exchanger Segmentation for Marine Fouling
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Solution Overview
Problem
Current heat exchangers, particularly in marine industries, face inefficiencies due to biological fouling and soiling, requiring complex and time-consuming cleaning processes, which are costly and often require external expertise, leading to vessel downtime and loss of income.
Innovation Solution
A modular heat exchange system with open elements featuring a folded sheet material forming slits, arranged in an open frame with accessible surfaces for easy cleaning, and an elongate element assembly system that simplifies dismantling, cleaning, and reassembly, reducing the need for specialized competence and time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If plate heat exchangers with multiple plates and gaskets are used, then heat exchange efficiency is improved, but cleaning complexity and time consumption increase substantially
Solution Approach 1:
The heat exchanger is divided into a limited number of modular plate assemblies (2-7 assemblies), where each assembly functions as an independent cleaning unit. This segmentation allows the entire heat exchanger to be cleaned by addressing only a few discrete modules rather than numerous individual plates, dramatically reducing cleaning time while preserving heat exchange efficiency.
Solution Approach 2:
Multiple heat exchange plates are combined into integrated plate assemblies where the plates and gaskets function as a unified module. This merging reduces the number of separate components that need to be handled during cleaning, transforming a complex multi-plate cleaning task into a simpler assembly-level cleaning process.
2Reliability
If plate heat exchangers with multiple plates and gaskets are used, then heat exchange efficiency is improved, but the complexity of dismantling and assembly increases
Solution Approach 1:
The heat exchanger is divided into a limited number of modular plate assemblies (2-7 assemblies), where each assembly functions as an independent cleaning unit. This segmentation allows the entire heat exchanger to be cleaned by addressing only a few discrete modules rather than numerous individual plates, dramatically reducing cleaning time while preserving heat exchange efficiency.
Solution Approach 2:
The plate assemblies are designed as universal modules that can be handled and cleaned using standardized procedures and tools. This universality simplifies the cleaning process by eliminating the need for specialized techniques for different plate configurations, reducing dependency on specialized competence while maintaining efficient heat exchange performance.
3Object-affected harmful factors
If traditional plate heat exchangers are cleaned, then fouling is removed, but substantial cost is incurred due to time consumption and part replacement
Solution Approach 1:
The plate assemblies are designed with pre-installed gaskets that are positioned and secured before the heat exchanger enters service. This preliminary action ensures that gaskets are in optimal condition before fouling occurs, reducing the likelihood of gasket failure during cleaning operations and minimizing the need for costly part replacements after maintenance.
Solution Approach 2:
The modular plate assembly design enables cleaning personnel to perform maintenance without requiring specialized tools or expertise. The simplified structure allows operators to clean the heat exchanger using basic procedures, eliminating the need to replace gaskets or other components during routine cleaning, thereby reducing maintenance costs while effectively removing biological fouling.
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
The modular system allows for efficient heat transfer with reduced maintenance time and costs, enabling vessels to maintain full control over cooling capacity and propulsive power without extensive downtime or external assistance.
Implementation Method 1
Heat exchanger, heat exchange between fluids, heat transfer capacity
Data Source
AI summary
A modular system for heat exchange between fluids includes a plurality of open elements that, by means of two end plates, are connected together. An open element is constituted of a folded and sealed sheet material that is arranged in a frame.