Pipeline Lining Curing Device with Direct LED Fluid Cooling
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Solution Overview
Problem
Existing pipeline rehabilitation methods using LED-based curing devices face inefficiencies in heat dissipation, leading to overheating and potential failure due to significant heat emission from LEDs, necessitating complex cooling systems and prolonged curing times.
Innovation Solution
A device with radially extending arms featuring LEDs and cooling fluid through-openings that allow direct convective cooling of LEDs, ensuring efficient heat dissipation through the passage of cooling fluid directly over the LEDs, enhancing cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If LED-based curing devices are used to cure pipeline linings, then curing speed is improved, but heat dissipation becomes insufficient leading to overheating
Solution Approach 1:
A cooling fluid is introduced as an intermediary substance to transfer heat from the LEDs to the surrounding environment. The cooling fluid flows through channels in the housing, absorbing heat generated by the LEDs during curing operation, thereby enabling high-speed curing without overheating.
Solution Approach 2:
The patent employs a hydraulic cooling system where cooling fluid is pumped through integrated channels in the device housing. This fluid circulation system efficiently removes heat from the LEDs, allowing sustained high-power operation for rapid curing of pipeline linings.
2Temperature
If complex cooling systems are implemented to dissipate LED heat, then temperature control is improved, but device complexity increases
Solution Approach 1:
The cooling channels are integrated directly into the housing structure of the curing device, merging the cooling system with the main body. This eliminates the need for separate external cooling components and reduces overall system complexity while maintaining effective heat dissipation.
Solution Approach 2:
The housing serves multiple functions: it provides structural support, contains the curing LEDs, and simultaneously acts as a heat exchanger through integrated cooling channels. This multi-functionality reduces the number of separate components needed, simplifying the overall device design.
3Reliability
If prolonged curing times are used to manage heat, then overheating is prevented, but productivity decreases
Solution Approach 1:
The cooling fluid circulates continuously throughout the curing process, providing constant heat removal. This enables the LEDs to operate at high power levels continuously without interruption or downtime for cooling, maintaining both reliability and high productivity throughout the curing operation.
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
Achieves rapid and efficient curing of pipeline linings by effectively dissipating heat from LEDs, preventing overheating and allowing for quick curing within minutes, while simplifying the cooling system design.
Implementation Method 1
cooling fluid through-openings that allow direct convective cooling of LEDs, ensuring efficient heat dissipation through the passage of cooling fluid directly over the LEDs
Implementation Method 2
at least one, in particular a plurality of, radiation sources, in particular light-emitting diodes (LEDs), are arranged on the outer end faces of the arms. These emit or radiate radiation, in particular light, of the predetermined wavelength or wavelength range
Implementation Method 3
the pipeline lining comprises a resin that is curable by electromagnetic radiation of a predetermined wavelength or a predetermined wavelength range
Data Source
Figure 1
Figure 2a~2f
Figure 3
AI summary
The invention relates to a device (10) for curing a pipeline lining, wherein the pipeline lining comprises a resin which is curable by means of electromagnetic radiation of a specified wavelength or of a specified wavelength range, comprising a housing (11) with a first (12) and a second (14) opposite end piece and with a housing body (16) which extends between the end pieces (12, 14) and with an electrical current and cooling fluid feed line which is connected to the first end piece (12), wherein the housing body (16) has radially extending arms (26), on the outer end surfaces of which there is arranged in each case at least one light-emitting diode (28), which light-emitting diodes emit light of the specified wavelength or of the specified wavelength range and are connected to the electrical current feed line, and wherein, between the arms (26), the housing (10) has cooling fluid passage openings (32) which are coupled to the cooling fluid feed line and which extend in a longitudinal direction at least in certain sections through the housing body (16), wherein the cooling fluid passage openings (32) are delimited radially to the outside in the region of the housing body (16) by longitudinal webs (24), and wherein, between the longitudinal webs (24) and the arms (26) and/or the light-emitting diodes (28) arranged on the arms (26), there is at least one gap-like outlet opening (34), which extends in a longitudinal direction, for the cooling fluid.