辽宁石油化工大学学报
遼寧石油化工大學學報
료녕석유화공대학학보
JOURNAL OF LIAONING UNIVERSITY OF PETROLEUM & CHEMICAL TECHNOLOGY
2014年
2期
41-44
,共4页
郭土%马贵阳%黄腾龙%石龙%孙皓
郭土%馬貴暘%黃騰龍%石龍%孫皓
곽토%마귀양%황등룡%석룡%손호
管壳式换热器%球面弓形折流板%数值模拟%换热系数%壳程压降
管殼式換熱器%毬麵弓形摺流闆%數值模擬%換熱繫數%殼程壓降
관각식환열기%구면궁형절류판%수치모의%환열계수%각정압강
Shell-and-Tube heat exchanger%Spherical segmental baffle%Numerical simulation%Coefficient of heat transfer%Shell side pressure drop
为了改善普通弓形折流板换热器换热性能,提出了一种新型折流板换热器-球面弓形折流板换热器。建立曲率半径为0.75D 的球面弓形折流板换热器和普通弓形折流板换热器数值分析模型,得到了壳程流体流场分布情况以及壳程压力降和传热系数。结果表明,在相同结构参数和进口流速条件下,球面弓形折流板换热器壳程压力降比普通弓形折流板换热器降低8%~11%,壳程传热系数比普通弓形折流板换热器降低1%~5%。
為瞭改善普通弓形摺流闆換熱器換熱性能,提齣瞭一種新型摺流闆換熱器-毬麵弓形摺流闆換熱器。建立麯率半徑為0.75D 的毬麵弓形摺流闆換熱器和普通弓形摺流闆換熱器數值分析模型,得到瞭殼程流體流場分佈情況以及殼程壓力降和傳熱繫數。結果錶明,在相同結構參數和進口流速條件下,毬麵弓形摺流闆換熱器殼程壓力降比普通弓形摺流闆換熱器降低8%~11%,殼程傳熱繫數比普通弓形摺流闆換熱器降低1%~5%。
위료개선보통궁형절류판환열기환열성능,제출료일충신형절류판환열기-구면궁형절류판환열기。건립곡솔반경위0.75D 적구면궁형절류판환열기화보통궁형절류판환열기수치분석모형,득도료각정류체류장분포정황이급각정압력강화전열계수。결과표명,재상동결구삼수화진구류속조건하,구면궁형절류판환열기각정압력강비보통궁형절류판환열기강저8%~11%,각정전열계수비보통궁형절류판환열기강저1%~5%。
In order to improve the performance of the conventional segmental baffle heat exchanger's heat transfer,a new type of baffle heat exchanger,namely a spherical baffle heat exchanger was proposed.Numerical analysis models for the spherical baffle heat exchanger which radius of curvature was 0.75D and conventional segmental baffle heat exchanger were established and the distribution of the shell side fluid flow field and the shell side pressure drop and the coefficient of heat transfer were obtained.The results indicate that under the conditions of the same structure parameters and the inlet flow velocity,shell side pressure drops cause by the spherical baffle heat exchanger were lower by8%~1 1% than those caused by the conventional segmental baffle,while the shell side heat transfer coefficient was decreased by 1%~5% compared with the spherical baffles.