Thermal Decoupling Fitting for Plumbing Hygiene
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Solution Overview
Problem
Heat transfer between hot and cold water pipes through fittings in plumbing systems can damage fittings and lead to hygienic issues due to temperature gradients, causing excessive germ formation.
Innovation Solution
A device with a section for thermal decoupling, using materials with lower thermal conductivity such as stainless steel, plastic, or ceramic, and fluidic decoupling means like backflow preventers or surface roughening to reduce heat transfer between fittings and pipes, combined with a design that minimizes water exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fittings are directly connected to both hot and cold water pipes, then water supply functionality is achieved, but heat transfer between pipes through the fitting causes damage and reduces lifespan
Solution Approach 1:
The device segments the water supply path into multiple channels: a first channel for hot water and a second channel for cold water, which are thermally decoupled. This segmentation prevents direct heat transfer between hot and cold lines while maintaining independent water supply functionality to the fitting.
Solution Approach 2:
The device introduces itself as an intermediary component between the hot and cold water pipes and the fitting. By positioning itself in the water path and providing thermal decoupling, it mediates the connection to prevent harmful heat transfer while enabling water supply.
2Ease of operation
If fittings are directly connected to hot water pipes, then hot water supply is achieved, but heat transfer to cold water line through the fitting causes hygienic problems and germ formation
Solution Approach 1:
The device segments the thermal pathways by providing thermally decoupled channels. The first channel carries hot water while the second channel carries cold water, preventing indirect heat transfer from hot to cold lines that would cause germ formation.
Solution Approach 2:
The device acts as a thermal intermediary that allows hot water supply to the fitting while blocking the thermal pathway to the cold water line, thus preventing hygienic contamination.
3Loss of energy
If thermal decoupling section is made from materials with lower thermal conductivity, then heat transfer is reduced, but device complexity increases
Solution Approach 1:
The device uses composite construction with a housing made of thermally insulating material and internal channels that provide thermal decoupling. This composite approach reduces heat transfer while maintaining a relatively simple overall device structure.
Solution Approach 2:
The device applies thermal decoupling locally at the critical interface where hot and cold water paths meet, rather than requiring complex insulation throughout the entire device. The thermally decoupled channels are positioned specifically where heat transfer prevention is most needed.
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 device effectively reduces heat transfer, protecting fittings from excessive temperature changes and improving hygiene by maintaining lower temperatures in both hot and cold water lines, thus extending the lifespan of fittings and preventing germ formation.
Implementation Method 1
the section for thermal decoupling has a lower thermal conductivity than the rest of the duct and/or the inner channel
Data Source
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AI summary
The invention relates to a device (2) for connecting at least one fitting (28) and a pipe (24, 26), comprising at least one inlet (4), at least one outlet (6), at least one connection (8) and an inner channel (10) which connects the inlet (4) and the outlet (6) in a through-flowing manner, a drainage channel (12) being provided, which connects the inner channel (10) to the connection (8) in a through-flowing manner. The aim of the invention is to provide a device (2) for connecting at least one fitting (28) and a pipe (24, 26), by means of which the fitting (28) is protected and hygiene conditions improved. To this end, the drainage channel (12) comprises at least one section for thermal decoupling (14) of the inner channel (10) and the connection (8). The invention further relates to a system (22) comprising at least one device (2) according to the invention.