摘要
为了提高清焦蝶阀的抗焦化能力和对其清焦的蒸汽流道进行优化设计,根据清焦蝶阀的工作原理和运行参数采用ANSYS CFX对蝶阀清焦流道的蒸汽和石脑油裂解气体进行多组分数值模拟。通过多组分数值模拟掌握蝶阀密封区域的气体组分情况来判断抗焦化能力和指导清焦蝶阀流道优化设计。对3种清焦蝶阀流道布置通过数值模拟对比分析,综合考虑清焦蝶阀的结构工艺性,确定了优化设计方案,通过试验验证已很好地解决输送介质过程中出现的焦化问题,为此类蝶阀的设计奠定了基础。
In order to enhance the capacity of dealing with the coking problem and optimizing the flow passage design,the multi-component flow that includes steam and the gas of naphtha cracker is numerically simulated by ANSYS CFX,which is according to the working principle of butterfly valve and operation conditions.With the help of distribution of the multi-component gas in the sealing zone of butterfly valve by the results of numerical simulation,the capacity of anti-coking can be evaluated,and which can be a guide to optimize the flow passage design for the butterfly valve.By comparing and analyzing the three different kinds of steam flow passage layout and taking the processing structure of the butterfly valve into consideration,the final design scheme has been proposed.The anti-coking effect and capacity of this design scheme had been verified well through test,it is shown that the coking problem can be solved very well in the process of transporting medium with the multi-component flow simulation and also this research can be a basis for designing this kind of butterfly valve.
出处
《石油与天然气化工》
CAS
CSCD
北大核心
2008年第5期373-376,共4页
Chemical engineering of oil & gas
基金
四川省教育厅自然科学基金重点项目(07ZA116)
四川省重点学科建设项目(SZD0412-1)
关键词
清焦蝶阀
多组分数值模拟
流道优化设计
ANSYS
CFX
the butterfly valve anti-coking,multi-component flow numerical simulations,flow passage optimum design,ANSYS CFX
