Burner Panel Cooling Cavity Layout for Furnace Hot Spot Control
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Solution Overview
Problem
Conventional cooling systems in electric arc furnaces are inefficient and prone to hot spots due to low turbulence and high-pressure fluid flow, which can lead to safety issues and uneven cooling distribution, particularly affecting burners, lances, and enclosures.
Innovation Solution
A burner panel with a cooling system featuring discharge openings that direct cooling fluid at atmospheric pressure to specific areas, ensuring even distribution and turbulence, using a box-in-box configuration with discharge openings along the cooling fluid pipes to enhance cooling efficiency and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If serpentine cooling arrangement is used, then cooling fluid can be directed through the device, but hot spots develop due to low turbulence and inefficient cooling
Solution Approach 1:
The cooling system is divided into multiple independent cooling pipes distributed throughout the burner panel, each with discharge openings that directly cool specific hot spots. This segmentation allows targeted cooling at critical locations rather than relying on a single serpentine pathway, eliminating hot spots while maintaining ease of installation through modular pipe placement.
Solution Approach 2:
Cooling fluid is discharged directly onto specific high-temperature areas of the burner panel through strategically positioned discharge openings in each cooling pipe. This localizes cooling effort to the exact locations needing it most, improving cooling efficiency without requiring complex serpentine routing throughout the entire panel.
2Reliability
If high pressure fluid flow is used to increase turbulence, then cooling efficiency improves, but safety issues arise from high pressure
Solution Approach 1:
The system changes the pressure parameter from high-pressure forced flow to atmospheric pressure discharge. Cooling fluid is discharged at atmospheric pressure through the discharge openings, eliminating safety hazards associated with high-pressure leaks while maintaining sufficient turbulence through the geometry of the discharge openings and natural flow patterns.
3Productivity
If constant flow cooling is used, then cooling is provided, but uneven cooling distribution creates hot spots
Solution Approach 1:
Each cooling pipe is equipped with discharge openings positioned to target specific high-temperature zones on the burner panel. This localized discharge strategy ensures uniform cooling distribution across the entire panel surface, as each segment receives cooling precisely where heat generation occurs, eliminating hot spots while maintaining comprehensive coverage.
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 system provides efficient and uniform cooling of furnace components, reducing the risk of hot spots and safety hazards while optimizing cooling fluid distribution, thereby extending the lifespan and performance of burners and enclosures.
Implementation Method 1
cooling fluid flow to help dissipate the heat
Implementation Method 2
cooling fluid thus cools the panels, from the inside
Data Source
AI summary
The disclosed technology includes a burner panel including an outer enclosure having an outer surface and an inner surface and a burner enclosure disposed at least partially within the outer enclosure and having an outer surface and an inner surface, wherein the outer surface of the burner enclosure and the inner surface of the outer enclosure define a cooling cavity. The burner panel can further include a cooling system disposed at least partially within the cooling cavity, the cooling system including a cooling fluid piping system in fluid communication with a cooling fluid inlet and one or more discharge openings comprising a slotted extension protruding from the cooling fluid piping system and defining a slot-shaped tube in fluid communication with the cooling fluid piping system, the one or more discharge openings configured to discharge a cooling fluid on at least a portion of the inner surface of the outer enclosure.