Cooling Bar Outlet Control for Variable-Width Flat Metal Cooling
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Solution Overview
Problem
Current cooling technologies for metal wide flat products in rolling mills are inefficient in utilizing cooling fluid, leading to suboptimal mechanical properties and energy consumption, particularly when dealing with products of varying widths.
Innovation Solution
A device with a cooling beam and varying fluid outlet row length, controlled by a regulating system, increases cooling fluid flow during reduced outlet configurations, ensuring optimal utilization of existing cooling water capacities and enhancing specific loading of the product, thereby improving mechanical properties and preventing edge overspray.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If the cooling beam operates with a reduced fluid outlet row length to match narrower product widths, then cooling fluid is saved and edge overspray is prevented, but the specific loading (cooling intensity per unit area) decreases
Solution Approach 1:
The patent applies dynamics by making the fluid outlet row length variable rather than fixed. The cooling beam can dynamically adjust its active outlet row length to match the width of the product being cooled, optimizing both fluid consumption and cooling intensity for each specific product dimension.
Solution Approach 2:
The patent changes the parameter of fluid outlet row length to resolve the contradiction. By varying this parameter according to product width, the system achieves optimal specific loading for each product size while preventing edge overspray and reducing unnecessary cooling fluid consumption.
2Manufacturing precision
If the cooling beam uses a maximum fluid outlet row length for all products, then specific loading is maintained, but cooling fluid is wasted on edge regions and energy consumption increases
Solution Approach 1:
The patent applies partial action by activating only the necessary portion of the fluid outlet row corresponding to the product width. Instead of using the full outlet row length for all products, the system activates only the required segment, reducing energy consumption and preventing waste on edge regions while maintaining adequate specific loading on the active outlets.
3Object-affected harmful factors
If the cooling beam operates with a reduced fluid outlet row length, then edge overspray is prevented and cooling fluid is saved, but the volume flow from remaining outlets decreases
Solution Approach 1:
The patent changes the parameter of outlet row length to eliminate edge overspray. By reducing the active outlet row length to match the product width, the system prevents cooling fluid from reaching edge regions where it would cause overspray, while the volume flow is optimized for the reduced number of active outlets.
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
This solution achieves up to 100% increase in specific loading without additional cooling fluid or energy consumption, resulting in more homogeneous temperature distribution and mechanical properties across the product width, while avoiding edge overspray and optimizing energy use.
Implementation Method 1
cooling beams that apply a cooling fluid to the respective wide flat product
Implementation Method 2
cooling fluid emerging from the fluid outlets
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to a device (4) for sequentially cooling metal wide flat products (3), comprising at least one cooling bar (13) and a supply unit for supplying the cooling bar (13) with a coolant, wherein the cooling bar (13) has a fluid chamber, at least one fluid outlet row running along a longitudinal axis of the fluid chamber, and at least one modifying unit arranged at least partially within the fluid chamber for modifying a length of the fluid outlet row at at least one end region of the fluid chamber. The device (4) has at least one open-loop and/or closed-loop control electronics system (14) connected to the supply unit and the modifying unit, which is designed to control the supply unit and the modifying unit in such a way that, with a reduced fluid outlet row, a volume flow rate of the coolant exiting out of the fluid outlets of the reduced fluid outlet row is increased by a coolant volume flow rate in relation to a volume flow rate exiting out of the respective fluid outlet of a maximum fluid outlet row when there is a maximum fluid outlet row, said coolant volume flow rate corresponding to at least one part of a volume flow rate of the coolant exiting out of the fluid outlets of the maximum fluid outlet row, when there is the maximum fluid outlet row, that are closed by the modifying device when there is the reduced fluid outlet row.