Analysis of Water Cooling Mechanism by Impinging Jet for Hot Rolled Wire Rod

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概要

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• The pre-cooling system used in the cooling process of the hot rolled wire rod is a system that sprays cooling water at high pressure to cool the fast-moving wire rod to a required temperature when the rod passes through the cooling nozzle of the cooling box. The influence of the flow phenomenon of this cooling nozzle affecting the rod temperature and the factors affecting the cooling efficiency were examined through experiments and numerical analysis. The confined-type cooling nozzle showed a phenomenon where secondary flow or vortex was produced on the flow depending on the existence of chambers and variations in the Reynolds number, and the production of such vortex affected the rod cooling efficiency phenomenon. The wire rod cooling efficiency can be said to be most effective at a point where the wire rod and water jet impinge due to flow increase, viz, the Reynolds number increase. It is believed that the optimal conditions featuring excellent cooling efficiency can be deduced in the future by analyzing the flow conditions and design conditions.

• 社団法人 日本鉄鋼協会の論文
• 2005-03-15

著者

• Lee Choong-won

  Department Of Mechanical Engineering Kyung-pook National University

• Chung Hwan-mun

  Graduate School Kyungpook National University

• SEE Seong-Kyu

  Technical Research Laboratories, POSCO

• See Seong-kyu

  Technical Research Laboratories Posco

• LEE Choong-Won

  Department of Mechanical Engineering, Kyungpook National University

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• A Study on A Spray of urea aqueous solution
• Analysis of Water Cooling Mechanism by Impinging Jet for Hot Rolled Wire Rod
• An Experimental Study on a Multiple-Orifice Twin-Fluid Atomizing Nozzle for NO_x Reduction and Combustion Test

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