Rolling Stock Cooling Chamber with Displaceable Nozzles
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Solution Overview
Problem
Existing cooling devices for rolled stock in rolling mills suffer from inefficient heat transfer and environmental contamination due to the uncontrolled dispersion of cooling media, which leads to reduced cooling effectiveness and potential contamination of the rolling hall.
Innovation Solution
A cooling device with a cooling chamber in fluid communication with a nozzle, allowing for controlled direction and prolonged exposure of the cooling medium to the rolled stock, utilizing a displaceable outer shell to adjust the flow direction and prevent uncontrolled draining, thereby enhancing heat transfer and reducing environmental contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a jet of cooling medium is directed onto the rolling stock with high pressure, then the initial heat transfer at the impact point is high, but the jet disintegrates completely and forms chaotically flowing cooling medium with significantly lower cooling effect
Solution Approach 1:
The cooling chamber is divided into multiple sections with individual nozzle groups that can be independently controlled. This segmentation allows the cooling medium to be applied in a controlled manner along the length of the rolling stock, preventing jet disintegration while maintaining effective heat transfer across the entire surface.
Solution Approach 2:
The system employs dynamically adjustable nozzle groups that can be moved along the cooling chamber to adapt to different rolling stock lengths and cooling requirements. This dynamic adjustment maintains optimal cooling medium flow patterns without disintegration, resolving the contradiction between initial high heat transfer and flow stability.
2Productivity
If the cooling medium is applied with high kinetic energy, then the initial cooling intensity is high, but the kinetic energy is withdrawn and the cooling medium flows off chaotically causing environmental contamination
Solution Approach 1:
The harmful chaotic flow and environmental contamination are extracted and contained within the enclosed cooling chamber structure. The cooling medium is directed onto the rolling stock through controlled nozzle groups within the chamber, preventing uncontrolled dispersion and environmental pollution while maintaining high cooling intensity.
Solution Approach 2:
The cooling chamber acts as an intermediary structure that mediates between the high-pressure cooling medium supply and the rolling stock surface. It controls the medium's path, ensuring high kinetic energy is effectively converted to heat transfer without chaotic dispersion, thus preventing environmental contamination.
3Stability of the object's composition
If the cooling chamber structure is implemented to control cooling medium flow, then heat transfer uniformity is improved, but the device complexity increases
Solution Approach 1:
The cooling chamber structure serves multiple functions simultaneously: it contains the cooling medium, supports the nozzle groups, provides structural rigidity, and facilitates heat transfer uniformity. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity while achieving uniform heat transfer.
4Adaptability or versatility
If nozzle groups are made displaceable to adapt to different rolling stock lengths, then the adaptability is improved, but the device complexity and adjustment mechanisms increase
Solution Approach 1:
The nozzle groups are designed to be displaceable along the cooling chamber using simple linear adjustment mechanisms. This dynamic capability allows adaptation to different rolling stock lengths without requiring complex reconfiguration systems, achieving high versatility with minimal increase in device complexity.
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 device achieves uniform heat transfer and reduces environmental pollution by ensuring a longer, controlled exposure of the cooling medium to the rolled stock, preventing splashing and minimizing the pressure needed for the cooling medium, thus enhancing cooling efficiency and maintaining a clean environment.
Implementation Method 1
a cooling device with a cooling chamber in fluid communication with a nozzle, allowing for controlled direction and prolonged exposure of the cooling medium to the rolled stock
Implementation Method 2
the intensity of the cooling is controlled by relative tuning of independently adjustable parameters (cooling time, volume flow, pressure, etc.). A safety distance to the boiling point of the cooling medium is maintained to avoid unstable film evaporation.
Data Source
Figure 1~2
Figure 3
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AI summary
The present invention relates to a device (3) for cooling rolled stock (2), preferably for cooling during cold rolling, comprising a nozzle (32) for applying a cooling medium (34) to the rolled stock (2), wherein a cooling chamber (4) that is in fluid communication with the nozzle (32) and extends substantially parallel to the strip running plane (10) is provided for applying the cooling medium (34) to the rolled stock (2).