Heated Pipe Assembly With Embedded Elements for Freeze Protection
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Solution Overview
Problem
Outdoor water pipes are susceptible to freezing and bursting due to inefficient heat transfer from external heating wires, which are also prone to physical wear and tear.
Innovation Solution
A pipe assembly with built-in heating elements between insulating layers, including a temperature-controlled switch to automatically activate heating when temperatures drop below a threshold and deactivate above a threshold, ensuring efficient heat transfer and protection from over-heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heating wires are wrapped on the outside of the pipes, then heat can be provided to prevent freezing, but heat transfer efficiency is limited and the wires are susceptible to physical wear and tear
Solution Approach 1:
The heating element is nested within the pipe wall structure, specifically embedded in the insulation layer between the metallic pipe layer and the outer protective layer. This nesting approach protects the heating element from external physical damage while maintaining close thermal contact with the pipe interior for efficient heat transfer.
Solution Approach 2:
The insulation layer serves as an intermediary medium that facilitates both thermal transfer from the heating element to the pipe and electrical insulation to protect against short circuits. This intermediary layer resolves the contradiction by enabling effective heat transfer while protecting the heating element.
2Loss of energy
If heating wires are wrapped on the outside of the pipes, then heat can be provided to prevent freezing, but heat transfer from the outside surface is inefficient
Solution Approach 1:
The heating element is nested within the pipe wall structure, specifically embedded in the insulation layer between the metallic pipe layer and the outer protective layer. This nesting approach protects the heating element from external physical damage while maintaining close thermal contact with the pipe interior for efficient heat transfer.
Solution Approach 2:
The heating element is positioned locally within the insulation layer where it can directly heat the pipe wall and water inside, rather than relying on external surface heating. This local positioning optimizes heat transfer efficiency while the surrounding insulation and protective layers provide mechanical protection.
3Reliability
If heating elements are built-in between piping layers, then heat transfer efficiency is improved and protection from wear is enhanced, but device complexity increases
Solution Approach 1:
The heating element is merged with the pipe wall structure during manufacturing, forming an integrated assembly where the heating element, insulation layer, and protective layers are combined into a single unit. This merging reduces overall system complexity despite the enhanced functionality.
Solution Approach 2:
The pipe assembly uses composite material layers including a metallic pipe layer, an insulation layer containing the heating element, and an outer protective layer. This composite structure achieves improved heat transfer and protection while maintaining a manageable complexity through standardized layering.
4Use of energy by moving object
If temperature controlled switch is added to automatically activate heating, then energy conservation is improved and over-heating protection is enhanced, but device complexity increases
Solution Approach 1:
The temperature-controlled switch incorporates a temperature sensor that continuously monitors the pipe temperature and provides feedback to the control circuit. When the temperature drops below a threshold, the switch activates the heating element; when the threshold is reached, it deactivates the heating, thereby conserving energy and preventing overheating.
Solution Approach 2:
The temperature-controlled switch enables the heating system to regulate itself automatically based on temperature conditions, eliminating the need for manual intervention. The system self-adjusts power consumption by activating or deactivating the heating element according to real-time temperature feedback.
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
Prevents freezing by maintaining optimal pipe temperatures while conserving energy and protecting against damage from overheating.
Implementation Method 1
at least one heating element disposed between the first and second piping layers for providing heat to the pipe body
Implementation Method 2
an outer layer outside of the second piping layer, the outer layer having a thermally insulating material
Data Source
AI summary
The present disclosure describes a pipe assembly. The pipe assembly includes a power source and a pipe body selectively coupled to the power source. The pipe body includes a first piping layer for allowing a content to flow from a proximal end to a distal end of the pipe body, a second piping layer disposed outside of the first piping layer, and at least one heating element disposed between the first and second piping layers for providing heat to the pipe body.