Dual-Chamber Cooling Panel for Metallurgic Furnaces
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Solution Overview
Problem
Metallurgic furnaces, particularly electric arc furnaces, face frequent maintenance and replacement issues due to mechanical, thermal, and chemical stress on water-cooled panels, leading to structural damage, water leaks, and safety hazards, resulting in reduced productivity and increased costs.
Innovation Solution
A panel cooled with two independent cooling circuits using different fluids, where one fluid is non-explosive, allowing for fluid flow inversion to prevent damage and maintain safe operation, ensuring efficient heat exchange and reducing maintenance needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If water-cooled panels are used in metallurgic furnaces, then cooling efficiency is improved, but structural integrity deteriorates due to mechanical, thermal and chemical stress
Solution Approach 1:
The panel is divided into two independent chambers (first chamber facing furnace interior, second chamber facing exterior) that can be independently cooled by different fluids. This segmentation allows the water-cooled first chamber to maintain cooling efficiency while the second chamber provides structural support, resolving the contradiction between cooling efficiency and structural integrity.
Solution Approach 2:
The panel employs a composite structure with two different cooling fluids (water in first chamber, non-explosive fluid in second chamber) working together. This composite approach combines the high cooling efficiency of water with the safety and structural stability of non-explosive fluids, maintaining both cooling performance and structural integrity under thermal and mechanical stress.
2Temperature
If water is used as cooling fluid, then cooling performance is improved, but safety deteriorates due to explosion risks from water leaks
Solution Approach 1:
The cooling system is segmented into two independent chambers with separate fluid circuits. The first chamber uses water for optimal cooling performance, while the second chamber uses a non-explosive fluid, eliminating the explosion risk associated with water leaks into the furnace while maintaining water's superior cooling performance where needed.
Solution Approach 2:
The second chamber acting as an intermediary between the water-cooled first chamber and the furnace environment provides a safety buffer. The non-explosive fluid in this intermediate chamber prevents direct contact between water and the furnace atmosphere, thereby eliminating explosion risks while allowing water to perform its cooling function effectively.
3Reliability
If panels are inspected and maintained frequently, then reliability is improved, but productivity deteriorates due to production halts
Solution Approach 1:
The system performs preliminary detection of panel defects through monitoring devices that continuously track the condition of both chambers. By detecting issues early through flow rate, pressure, and temperature monitoring, maintenance can be planned in advance during scheduled downtime rather than requiring emergency production halts, thus maintaining reliability while preserving productivity.
Solution Approach 2:
The monitoring system provides continuous feedback on the condition of cooling panels through sensors detecting flow rate, pressure, and temperature variations. This feedback mechanism enables predictive maintenance by alerting operators to developing issues before they cause failures, allowing maintenance to be scheduled during planned downtime rather than forcing unplanned production interruptions.
4Strength
If water flow is obstructed during critical operation steps, then panel damage is prevented, but productivity deteriorates due to inability to intervene
Solution Approach 1:
The cooling system is designed with dynamic adaptability through two independent chambers that can operate with different fluids. During critical operation steps, the system can dynamically adjust by relying on the non-explosive second chamber while maintaining cooling through the first chamber, allowing continuous operation without obstructing water flow. This dynamic configuration protects panels while preserving productivity during critical furnace operations.
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 extends the lifespan of cooling panels, reduces maintenance costs, and allows for planned maintenance without sudden production halts, ensuring safe and continuous operation by using a non-explosive fluid to prevent damage and leaks, even during critical furnace steps.
Implementation Method 1
a first chamber (2) having a face (2A) that, in assembly conditions, is destined to face the interior of a metallurgic furnace (F) and an opposite face (2B) in thermal contact with a face (3A) of a second chamber (3), whose opposed face (3B) is destined, in assembly conditions, to face the external part of the furnace (F)
Data Source
Figure 1~3
Figure 4~5
Figure 6~7
AI summary
The present invention refers to a panel (1) cooled with a fluid, for metallurgic furnaces (F), comprising a first chamber (2) having a face (2A) which, in assembly conditions, is destined to face the interior of a metallurgic furnace (F) and the opposite face (2B) in thermal contact with a face (3A) of a second chamber (3) whose opposed face (3B) is destined to face, in assembly conditions, the external part of the metallurgic furnace (F), in which the first chamber (2) and the second chamber (3) are mutually independent and in which the first chamber (3) comprises an inlet (5) and an outlet (7) of a cooling fluid and the second chamber (3) comprises an inlet (6) and an outlet (8) of a cooling fluid, the panel (1) having a first working configuration, in which the first chamber (2) is passed by a first cooling fluid (R1) and the second chamber (3) is passed by a second cooling fluid (R2) different from the first cooling fluid, and a second working configuration, in which the first chamber (2) is passed by said second cooling fluid (R2) and the second chamber (3) is passed by said first cooling fluid (R1).