Modular heating system
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Solution Overview
Problem
Tankless water heaters face challenges with high water flow rates, bulkiness, and complex design, leading to installation and manufacturing difficulties, as well as inefficiencies in heat transfer and potential overheating issues.
Innovation Solution
A modular heating unit with a cylindrical tube having indexed grooves for adjustable electrical resistance heating elements, supported by retention clips, and an optical assembly for overheating detection, allowing for optimized heat transfer and fluid flow management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If tankless water heater processes high water flow rate, then water heating capacity is improved, but heat transfer efficiency deteriorates and overheating issues occur
Solution Approach 1:
The heating system is divided into multiple independent heating zones or sections, allowing the water flow to be distributed across multiple heating elements. This segmentation enables better heat transfer control for each zone while maintaining overall high water heating capacity, preventing any single zone from overheating.
Solution Approach 2:
The heating system incorporates dynamic control mechanisms that adjust heating element activation and power levels based on real-time water flow rate detection. When high flow rates are detected, the system dynamically activates multiple heating zones or increases power to specific zones to maintain heat transfer efficiency while meeting the high water heating demand.
2Volume of moving object
If tankless water heater design is made compact, then installation space is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent implements a nested configuration where heating elements, flow sensors, and control components are arranged concentrically or in layered patterns within the housing. The inner tube heating element is surrounded by insulation and outer housing components, creating a compact nested structure that reduces installation space while using standardized modular components that simplify manufacturing.
Solution Approach 2:
The compact design uses multi-functional components that perform multiple functions. For example, the housing serves as both structural support and insulation barrier, while certain components are designed to be universally applicable across different model configurations, reducing the number of unique parts and simplifying manufacturing despite the compact form factor.
3Ease of manufacture
If heating element placement is made fixed, then manufacturing is simplified, but adaptability to different flow rates and heating requirements is reduced
Solution Approach 1:
The heating element mounting system incorporates adjustable or reconfigurable features that allow the heating elements to be dynamically positioned or repositioned based on specific application requirements. This could include adjustable mounting brackets, movable heating element carriers, or reconfigurable connection points, enabling the same unit to adapt to different flow rates and heating demands while maintaining relatively simple standardized manufacturing processes.
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 design enhances heat transfer efficiency, prevents overheating, and simplifies installation and maintenance by allowing for adjustable heating element placement and real-time overheating detection, improving the overall performance and longevity of the tankless water heater system.
Implementation Method 1
indexed grooves for adjustable electrical resistance heating elements
Implementation Method 2
an optical assembly for overheating detection
Data Source
AI summary
A heating unit for heating fluid is described having a first manifold having at least one inlet, a second manifold connected to the first manifold and having at least one outlet, and a third manifold. The heating unit also includes one or more heating systems which extend from the third manifold to the first manifold via the second manifold, where the one or more heating systems have an inner tube and an outer tube. Further, the heating unit includes a fluid flow path from the at least one inlet to the at least one outlet via the first manifold, an area between the inner tube and outer tube, the interior of the inner tube and the second manifold.