谭祺钰,赖喜德,陈小明,王中军,杨炯波,刘国强
TAN Qiyu,LAI Xide,CHEN Xiaoming,WANG Zhongjun,YANG Jiongbo,LIU Guoqiang

• 1:西华大学能源与动力工程学院
• 2:成都华科阀门制造有限公司

摘要(Abstract)：

在蝶阀座密封面上采用高温高压蒸汽吹扫,以降低裂解气在阀座密封圈附近的浓度是解决大型控制阀产生焦化问题的主要技术途径。为探究蒸汽流道结构对清焦蝶阀清焦性能的影响,对不同方案蒸汽流道结构的清焦阀进行多组分裂解气和饱和蒸汽的流场数值模拟。以阀座密封圈周围裂解气和饱和蒸汽的体积分数及分布情况为判定依据,探究蒸汽流道的两种进气形式、进气管的角度、进气管数对蝶阀清焦性能的影响。研究结果表明:缝隙进气形式的清焦性能优于小孔形式。进气管的角度对清焦性能的影响较为明显,切向进气优于径向进气。进气管数对径向进气阀门的清焦性能影响较大,而对于切向进气阀门的影响较小。综合对比分析所有方案,并结合实际制造工艺,最终确定缝隙进气形式、切向进气方式、8根进气管为最优方案,能有效减缓裂解气控制阀产生焦化的问题,为此类阀门的设计提供了依据。
Purging sealing surface of butterfly valve seat by using high temperature and high pressure steam to reduce the concentration of pyrolysis gas near the seal ring of valve seat is the main technical way to solve the coking problem of large control valve.In order to explore the influence of the steam passage structure on the decoking performance of the decoking butterfly valve，the numerical simulation of the flow field of multicomponent pyrolysis gas and saturated steam was carried out for the decoking valve for different schemes.Based on the volume fraction and distribution of pyrolysis gas and saturated steam around the seat seal ring，the influence of two intake forms of steam flow passage，intake pipe angle and intake pipe number on the decoking performance of butterfly valve was investigated.The results show that the decoking performance of the slit intake form is better than that of the hole form.The angle of the intake pipe has an obvious effect on the decoking performance.The tangential intake is better than the radial intake.The number of intake pipes has great influence on the decoking performance of radial intake valve，but has little influence on tangential intake valve.By comprehensive analysis of all schemes and in combination with the actual manufacturing process，finally，the optimal scheme was determined as slit intake form，tangential intake and 8 intake pipes，which can effectively slow down the coking problem of pyrolysis gas control valves and provide a basis for the design of such valves.

关键词(KeyWords)： 清焦阀;数值模拟;蒸汽流道结构;清焦性能;体积分数
decoking valve;numerical simulation;steam passage structure;decoking performance;volume fraction

Abstract:

Keywords:

基金项目(Foundation): 四川省科技计划项目（2020ZHCG0018）;; 2020年四川省工业发展资金项目

作者(Author): 谭祺钰,赖喜德,陈小明,王中军,杨炯波,刘国强
TAN Qiyu,LAI Xide,CHEN Xiaoming,WANG Zhongjun,YANG Jiongbo,LIU Guoqiang

参考文献(References)：

• [1]韩军.三偏心蝶阀的发展、特点及应用[J].齐鲁石油化工，2010，38(3)：205-207.HAN J.development，characteristics and application of triple eccentric butterfly valve[J].Qilu Petrochemical，2010，38(3)：205-207.
• [2]陆建新，丁英仁.裂解气阀和清焦阀的选型及使用[J].乙烯工业，2011，23(2)：49-54.LU J X，DING Y R.Selection and application of cracking gas valve and coke cleaning valve[J].Ethylene Industry，2011，23(2)：49-54.
• [3]智慧，张健.液压滑阀阀芯结构对流场的影响[J].包装工程，2020，41(3)：182-187.ZHI H，ZHANG J.Effects of hydraulic spool valve core structure on fluid field[J].Packaging Engineering，2020，41(3)：182-187.
• [4]张勤昭，刘福生，王宏.三偏心蝶阀的流场和阻力特性研究[J].流体机械，2013，41(11)：1-5.ZHANG Q Z，LIU F S，WANG H.Study on flow field and resistance characteristics of three eccentric butterfly valve[J].Fluid Machinery，2013，41(11)：1-5.
• [5]王海民，刘欢，孔祥帅.三偏心蝶板绕流尾部涡脱落的研究[J].流体机械，2019，47(2)：23-28.WANG H M，LIU H，KONG X S.Research on trailing vortex shedding around three eccentric butterfly plates[J].Fluid Machinery，2019，47(2)：23-28.
• [6]JEON S Y，YOON J Y，SHIN M S.Flow characteristics and performance evaluation of butterfly valves using numerical analysis[J].IOP Conference Series：Earth and Environmental Science，2010，12(1)：012099.
• [7]康忠平，赖喜德，刘国强.清焦蝶阀的多组分气流数值模拟及流道优化设计[J].石油与天然气化工，2008，37(5)：373-376.KANG Z P，LAI X D，LIU G Q.Numerical simulation of multi-component flow and optimal design of flow passage for coke cleaning butterfly valve[J].Petroleum and Natural Gas Chemical Industry，2008，37(5)：373-376.
• [8]杨泽林，张世富，王铭.基于FLUENT的梭阀稳态流场数值模拟[J].液压气动与密封，2017，37(9)：29-32.YANG Z L，ZHANG S F，WANG M.Numerical simulation of steady flow field of shuttle valve based on fluent[J].Hydraulics Pneumatics & Seals，2017，37(9)：29-32.
• [9]郑智剑，路波，惠伟安.小开度节流阀流场特征及空化流动的数值分析[J].液压气动与密封，2012，32(8)：22-24.ZHENG Z J，LU B，HUI W A.Numerical analysis of flow field characteristics and cavitation flow of small opening throttle valve[J].Hydraulics Pneumatics & Seals，2012，32(8)：22-24.
• [10]MENTER F R.Two-equation eddy-viscosity turbulence models for engineering applications[J].AIAA Journal，1994(8)：1598-1605.
• [11]WILCOX D C.Reassessment of the scale-determining equation for advanced turbulence models[J].AIAA Journal，1988(26)：1299-1310.
• [12]李子亮，于洋，刘登丰.基于SST k-ω的超声速气膜冷却湍流模型温度修正[J].载人航天，2020，26(1)：14-18.LI Z L，YU Y，LIU D F.Temperature correction of supersonic film cooling turbulence model based on SST K-ω[J].Manned Space Flight，2020，26(1)：14-18.
• [13]BRAD M P，JIAJIA W，DAVID B C.A finite element menter shear stress turbulence transport model[J].Numerical Heat Transfer，Part A：Applications，2020，77(12)：105-110.
• [14]薛小军.爆炸焊接复合钢板制复合管耐腐蚀性能研究[J].压力容器，2021，38(1):68-74.XUE X J.Study on corrosion resistance of clad steel pipe made of explosive welded clad steel plate[J].Pressure Vessel Technology，2021，38(1):68-74.
• [15]陈烨鹏，陆晓峰，朱晓磊.四级球化10CrMo910钢炉管剩余寿命评价[J].压力容器，2020，37(9)：11-15.CHEN Y P，LU X F，ZHU X L.Residual life evaluation of 10CrMo910 furnace tube with fourth grade spheroidization[J].Pressure Vessel Technology，2020，37(9):11-15.
• [16]林建东，乔光谱.安全阀RBI结果在石化行业的应用与经济性分析[J].压力容器，2020，37(9):68-72.LIN J D，QIAO G P.Application of RBI Assessment and economic analysis of relief valve in petrochemical industry[J].Pressure Vessel Technology，2020，37(9)：68-72.
• [17]路扬.新型百万千瓦核电机组汽水分离再热器制造关键技术探讨[J].压力容器，2020，37(8):73-78.LU Y.Discussion on key technology for manufacturing new type of moisture separator reheater of million kilowatt nuclear power units[J].Pressure Vessel Technology，2020，37(8)：73-78.
• [18]罗大伟，宋海燕，吴迪.EPP保温箱温度场的数值模拟及试验验证[J].包装与食品机械，2020，38(3)：45-50.LUO D W，SONG H Y，WU D.Numerical simulation and experimental verification of temperature field of EPP incubator[J].Packaging and Food Machinery，2020，38(3)：45-50.
• [19]潘健，张燕飞，张和平.复合包装膜的热封性能判定及影响因素分析[J].包装与食品机械，2020，38(2)：70-72.PAN J，ZHANG Y F，ZHANG H P.Determination of the heat-sealing property of the composite packaging film and the analysis of the influencing factors[J].Packaging and Food Machinery，2020，38(2)：70-72.
• [20]MANOKARAN K，RAMAKRISHNA M，JAYACHANDRAN T.Application of flux vector splitting methods with SST turbulence model to wall-bounded flows[J].Computers and Fluids，2020，208：190-193.