Infrared Rail Heating Device for Traffic Flow
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Solution Overview
Problem
Existing methods for heating railroad tracks during laying are inefficient, leading to significant disruptions in rail traffic due to the need for mechanical neutralization and limited travel speeds.
Innovation Solution
A mobile heating device equipped with infrared radiation electric lamps and a secondary reflector, designed to heat railroad tracks efficiently and precisely, allowing for continuous heating and faster laying processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If mechanical neutralization is performed after rail laying, then the rail temperature can be adjusted to neutral temperature, but significant traffic disruption occurs and travel speed must be limited
Solution Approach 1:
The patent applies preliminary action by heating the rail to neutral temperature before fixing it to the crossties. The mobile heating device travels along the track and heats the rail in advance, allowing the rail to be at the correct temperature before installation, thus avoiding post-installation mechanical neutralization and enabling immediate normal traffic flow
Solution Approach 2:
The patent replaces the mechanical neutralization system (cutting, stretching, re-bolting) with a thermal system. Instead of mechanically adjusting the rail after installation, the invention uses mobile infrared heating to thermally pre-adjust the rail temperature before fixing, substituting mechanical operations with thermal processing
2Manufacturing precision
If induction heating is used for continuous rail heating, then precise temperature control is achieved, but the equipment complexity increases due to power generators and cooling systems
Solution Approach 1:
The patent substitutes complex electromagnetic induction heating equipment with simpler infrared electric lamp heating. Instead of using large power generators, cooling systems, and inductors, the invention employs mobile infrared lamps that directly radiate thermal energy to the rail, achieving comparable temperature control with significantly reduced equipment complexity
Solution Approach 2:
The patent uses relatively simple and inexpensive infrared electric lamps instead of expensive, complex induction heating equipment. The lamps are portable, easier to deploy, and do not require the extensive support infrastructure (power generators, cooling systems) needed for induction heating, making the overall system more economical and simpler
3Device complexity
If hot water spraying is used for thermal pre-neutralization, then the equipment is simple, but the output and delivery infrastructure requirements increase
Solution Approach 1:
The patent substitutes hot water spraying (fluid-based heating) with infrared radiation heating (electromagnetic energy-based). Instead of requiring water delivery systems, drainage infrastructure, and fluid handling equipment, the invention uses mobile infrared lamps that directly radiate heat to the rail, eliminating the need for water infrastructure while improving heating efficiency and productivity
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 solution enables precise and powerful heating of railroad tracks, allowing for faster laying speeds and reduced traffic disruptions, while ensuring the tracks are neutralized to minimize thermal expansion issues.
Implementation Method 1
a plurality of infrared radiation electric lamps which are distributed over the periphery of the heating zone and are oriented towards the heating zone, each of the infrared radiation electric lamps comprising at least one radiation source which is capable of emitting infrared radiation
Implementation Method 2
at least one primary reflector which is oriented so as to reflect the infrared radiation emitted by the radiation source towards the heating zone
Implementation Method 3
at least one primary reflector which is oriented so as to reflect the infrared radiation emitted by the radiation source towards the heating zone
Implementation Method 4
a secondary reflector having a concave reflective surface surrounding the heating zone and capable of returning reflected rays, passing between the infrared radiation electric lamps, towards the heating zone
Data Source
AI summary
A mobile device for heating a rail (12) of a railroad (2) is made up of a heating module (34) comprising at least one heating zone (28) and at least one radiating heat source (46) directed towards the heating zone (28), and of a transport vehicle (16) for transporting the heating module (34). A heating unit (36) of the heating module (34) comprises infrared-radiation electric lamps (42) able to emit radiation that is concentrated in the near-infrared, and which are equipped with a primary reflector (48) oriented in such a way as to reflect the infrared radiation emitted by the radiation source (46) towards the heating zone (28). The heating unit (36) also comprises a secondary reflector (50) having a concave reflective surface surrounding the heating zone (28) and able to return towards the heating zone (28) rays reflected by the rail and that pass between the infrared-radiation electric lamps (42).