Pipeline Lining Curing Head With Liquid-Cooled LED Temperature Control
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Solution Overview
Problem
Existing pipeline rehabilitation methods using light-curable resins face challenges with temperature control and cooling, often requiring costly metallic heat sinks and cooling fluid systems, which can be cumbersome and inefficient.
Innovation Solution
A device featuring a closed, liquid-cooled system with high-performance light-emitting diodes embedded in a transparent, temperature-resistant material, filled with a flame-retardant insulating liquid, and equipped with a rotationally symmetrical insert driven by a shaft or hydraulic line, providing efficient cooling and temperature monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If metallic cooling sinks and cooling fluid systems are used for temperature control, then cooling capability is improved, but device complexity and cost increase
Solution Approach 1:
The device uses the insulating fluid itself to provide both electrical insulation and cooling functions. The high-performance diodes are directly coupled to the insulating fluid, eliminating the need for separate cooling systems. The insulating fluid circulates through the device, absorbing heat from the diodes and transporting it away, thus the system serves itself for both insulation and thermal management.
Solution Approach 2:
The insulating fluid performs multiple functions simultaneously: it provides electrical insulation for the high-performance diodes, serves as a cooling medium to manage heat, and acts as a dielectric material. This multi-functionality eliminates the need for separate metallic cooling sinks and cooling fluid systems, reducing device complexity while maintaining effective temperature control.
2Illumination intensity
If high-performance light-emitting diodes are used for curing, then radiation intensity is improved, but heat generation increases requiring advanced cooling
Solution Approach 1:
The insulating fluid acts as an intermediary between the high-performance diodes and the surrounding environment. It directly contacts the diodes, absorbing the heat they generate during high-intensity radiation operation. The fluid then transports this heat away from the diodes, preventing overheating while allowing the diodes to operate at high radiation intensities for effective curing.
3Reliability
If the device is filled with insulating fluid, then electrical insulation and cooling are improved, but device complexity increases
Solution Approach 1:
The insulating fluid provides multiple essential functions within a single medium: electrical insulation to protect the high-performance diodes, cooling to manage heat generation, and dielectric properties to enable electrical operation. By consolidating these functions into one substance, the actual device complexity is reduced compared to using separate systems for each function.
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 solution enables precise temperature control, improved cooling efficiency, and increased durability of the high-performance diodes, reducing the risk of overheating and enhancing the reliability and longevity of the pipeline rehabilitation process.
Implementation Method 1
the head part, and preferably the entire device, being filled with a transparent, flame-retardant insulating liquid
Implementation Method 2
high-performance light-emitting diodes as a self-contained, liquid-cooled system
Implementation Method 3
a reactive resin which hardens under the influence of the radiation of light-emitting components
Data Source
Figure 1~2
Figure 3~5
Figure 6~7
AI summary
The invention relates to a device for rehabilitating a pipeline by means of a tubular fiber lining which is impregnated with a reaction resin that cures under the influence of light-emitting components. According to the invention, said device has a top (1) which consists of a transparent, temperature-resistant material, and end caps (2, 3) hermetically seal the device from the exterior on both end faces, the entire device or at least the top (1) thereof being filled with a transparent, flame retardant insulating liquid (5), and the device containing an insert the insulation supports (8) of which are provided with high-power light-emitting diodes (9).