The Open Mechanical Engineering Journal

2014, 8 : 550-556
Published online 2014 December 24. DOI: 10.2174/1874155X01408010550
Publisher ID: TOMEJ-8-550

Nozzle Design of Hot Strip Steel Temperature Measurement Device and Analysis of its Flow Field Characteristics

Shui Xuan Chen , Gang Lu and Jian Min Xu
School of Mechanical and automotive Engineering, Xiamen University of Technology, Xiamen, 361024, P.R. China.

ABSTRACT

A kind of new hot strip steel temperature measuring device has been designed. The mathematical model and the geometric model of the nozzle flow field have been established based on computational fluid dynamics theory. The impact of equalizing groove and nozzle structure on the nozzle system characteristics is researched in detail using fluid dynamics software FLUENT. The research results show that: the nozzle pressure groove can improve the gas flow properties of the nozzle and the nozzle can meet the design requirements. The nozzle gap, the inlet pressure of nozzle, the lower edge diameter of the nozzle, nozzle diameter and chamfer structure have different effects on flow field characteristics and nozzle flow. The study provides a theoretical basis for designing hot strip steel temperature measurement devices and the nozzle of purge.

Keywords:

Hot strip temperature measuring device, computational fluid dynamics, nozzle, flow field characteristics.