Cooling Beam Nozzle Layout for Uniform Rolled Stock Cooling
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Solution Overview
Problem
Existing cooling devices for rolling stock struggle to uniformly cool the rolling stock across its width due to temperature variations, leading to inconsistent cooling effects and increased energy consumption.
Innovation Solution
A cooling beam design featuring a spray chamber and distribution chamber with full jet nozzles that emit coolant jets with a constant diameter, allowing for adjustable nozzle density and spacing to compensate for temperature differences, reducing energy consumption, and minimizing coolant runoff during interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional cooling devices are used to cool rolled material, then cooling is applied to the material, but temperature differences across the width of the material persist leading to non-uniform cooling
Solution Approach 1:
The patent applies local quality by varying the nozzle density and spacing across different sections of the cooling beam. Specifically, the first section has a higher nozzle density with smaller spacing to cool hotter central regions, while the second section has lower nozzle density with larger spacing for cooler edge regions. This non-uniform distribution optimizes temperature uniformity across the material width by matching cooling intensity to local temperature requirements.
2Productivity
If high coolant pressure is used to improve cooling effectiveness, then cooling performance increases, but energy consumption increases
Solution Approach 1:
The patent employs parameter changes by optimizing nozzle spacing and density as key parameters to achieve effective cooling at lower pressures. By carefully designing the non-uniform nozzle distribution pattern, the system achieves uniform temperature distribution without requiring high coolant pressure, thereby reducing energy consumption of the coolant delivery system while maintaining cooling effectiveness.
3Temperature
If nozzle density is increased to improve cooling uniformity, then temperature distribution improves, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the cooling beam into multiple sections (first section with higher nozzle density, second section with lower nozzle density). Each section is independently designed with specific nozzle spacing and density characteristics. This segmented approach achieves complex temperature distribution control while maintaining manageable device complexity through modular section design.
4Productivity
If coolant is continuously supplied to ensure adequate cooling, then cooling performance is maintained, but coolant waste increases during interruptions
Solution Approach 1:
The patent applies preliminary action by providing a reservoir that pre-stores coolant before cooling operations begin or resume. This reservoir ensures that when cooling interruptions occur, the system can quickly resume effective cooling without needing to continuously supply large amounts of coolant during the interruption period, thereby reducing coolant waste while maintaining cooling performance readiness.
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 cooling beam achieves uniform cooling across the rolling stock width, effectively reduces temperature variations, and operates at lower pressures, enhancing energy efficiency and mechanical stability.
Implementation Method 1
several solid jet nozzles (11), each having a tubular nozzle body (19) with an open end (21) arranged in an upper region inside the spray chamber (7) for supplying coolant to the solid jet nozzle (11), through which a coolant jet with a nearly constant jet diameter can be emitted in a discharge direction (15)
Implementation Method 2
A distribution chamber (9) is provided for the intermediate storage of the coolant. This distribution chamber (9) is connected to the spray chamber (7) by at least one through-opening (13) for filling the spray chamber (7) with coolant from the distribution chamber (9)
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to a cooling beam (1) for cooling a rolled stock (5) moving in a transport direction (3) and in particular for reducing temperature differences in the temperature of the rolled stock (5) transversely to the transport direction (3). The cooling beam (1) has several full-jet nozzles (11), through which a coolant jet of a coolant with an almost constant jet diameter can be discharged in a delivery direction (15) to the rolling stock (5). The invention also relates to a cooling device (35) with at least two cooling beams (1) of this type.