Original scientific paper

https://doi.org/10.17559/TV-20140214210437

Mutual collision of water jets from adjacent high pressure flat jet nozzles on flat surfaces during hydraulic descaling

Michal Pohanka ; Faculty of Mechanical Engineering, Brno University of Technology, Technická 2896/2, 61669 Brno, Czech Republic
Miroslav Raudenský ; Faculty of Mechanical Engineering, Brno University of Technology, Technická 2896/2, 61669 Brno, Czech Republic
Jong Yeon Hwang ; POSCO Gwangyang Work, 700, Gumho-dong, Gwangyang-si, Jeonnam, 545-711, Korea
Jong Woo You ; POSCO Gwangyang Work, 700, Gumho-dong, Gwangyang-si, Jeonnam, 545-711, Korea
Sang Hyeon Lee ; POSCO Gwangyang Work, 700, Gumho-dong, Gwangyang-si, Jeonnam, 545-711, Korea

Abstract

High energetic water jets sprayed from nozzles are used for scale removal. Special nozzles with flat and very narrow jets for high feed pressure are used. This process, called descaling, is used in hot rolling, for example. A number of jets must be used to cover the total width of a rolled strip. High quality and homogeneity of the descaling process is required. A row of high pressure descaling nozzles is often used. This paper focuses on the area where water streams from adjacent nozzles interact. Water impact measurements were taken for several nozzle configurations and the measuring technique with the results obtained is presented. The water impact pressure for multiple nozzles was computed and the results were compared to the measurements.

Keywords

descaling; interaction; jet; nozzle; measurement; stream

Hrčak ID:

167498

URI

https://hrcak.srce.hr/167498

Publication date:

13.10.2016.

Article data in other languages: croatian

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