特钢型材风淬多喷嘴风压均匀性研究  

Study on the uniformity of gas pressure of multiple nozzles for gas quenching of products of special steel

作　　者：曹树森 Cao Shusen(State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization,Panzhihua 617000,Sichuan,China)

机构地区：[1]钒钛资源综合利用国家重点实验室,四川攀枝花617000

出　　处：《特钢技术》2023年第3期60-65,共6页Special Steel Technology

基　　金：青年人才基金项目:航空航天用高性能钛合金无缝管制备及质量控制研究,编号:2022JDJQ0029。

摘　　要：由于某研究院特钢型材实验室应用的喷风机构存在各喷嘴出口风压不均的问题,导致风淬后的重轨表面出现性能分布差异很大的现象。该现象大大影响了科研人员基于钢轨表面性能的相关研究成果的分析和判定。为了解决上述问题,本文采用CFD计算方法分析现有喷风机构出现各喷嘴风压不均的现象和原因。通过CFD计算结果分析确定了现有喷风机构的问题和不足,然后优化设计了四种新型喷风机构。最后应用CFD计算方法,分析比较各个方案各喷嘴出口风压的分布情况,根据分析结果,最终选用文中的方案四作为最优新型喷风机构,该喷风机构将各喷嘴风压极差由7.9kPa降为0.22kPa,有效解决了喷风机构各喷嘴出口风压不均的问题。Due to the problem of uneven wind pressure at the outlet of each nozzle in the compressed air spray mechanism deployed in the products of special steel laboratory of a research institute,the performance distributed on the products of special steel surface after wind quenching is very different.This phenomenon greatly affects the analysis and judgment of researchers based on the relevant research results of Products of Special Steel surface properties.In order to solve the problem,this paper uses the CFD calculation method to analyze the phenomenon and causes of uneven wind pressure at the outlet of each nozzle in the existing compressed air spray mechanism.Through the analysis of CFD calculation results,the problems and shortcomings of the existing compressed air spray mechanism were determined,and then four new air spray mechanisms were optimally designed.Finally,the CFD calculation method is used to analyzing and comparing the distribution of the outlet wind pressure at each nozzle for each scheme.According to the analysis results,the 4th scheme discussed in the paper is finally selected as the best choice,which reduces the wind pressure range of each nozzle from 7.9kPa to 0.22kPa.It effectively solves the problem of uneven wind pressure at the outlet of each nozzle of the‘compressed air spray mechanism.

关 键 词：风淬 风压均匀性 试验平台 余热淬火 

分 类 号：TH122[机械工程—机械设计及理论]