摘要
石油化工、油田开采等领域对油水乳化液进行破乳脱水处理是一个关键的工艺环节,旋流装置的双锥段结构对内部流场和分离效率的影响显著。针对锥段区域,提出了一种新型双场耦合分离装置,该装置锥段为椭圆相切型结构。建立了双场耦合分离装置的数值仿真模型,研究了椭圆相切式结构对装置内部流场和分离效率的影响。此外,为了提高新型装置的分离效率,通过建立不同结构参数下椭圆相切型装置计算模型,并结合Box-Behnken因子设计和响应面法对装置结构进行优化。结果表明:椭圆相切型结构的分离性能比传统结构更好,约提高了5.98%;新型结构优化后,椭圆1的长轴a_(1)、短轴b_(1)和椭圆2的长轴a_(2)的最佳取值分别为560、90和409.96 mm,在此条件下的双椭圆锥段双场耦合装置的脱水率约为96.23%。
Demulsification and dewatering of oil-water emulsion is a key process in the fields of petrochemical industry and oilfield exploitation.The swirl device has a great influence on the internal flow field and separation efficiency.In this study,a new coupling device was proposed,of which the cone section was an ellipse tangent structure instead of the design mode of straight double-cone section.A model for numerical simulation of the device was established,and the influence of the elliptic tangent structure on the internal flow field and separation efficiency of the device was studied.Moreover,a calculation model of the elliptic tangential device with different structural parameters was also established,and the structure of the elliptic tangential swirl device was optimized by Box-Behnken factor design and response surface method.The results show that the separation efficiency of the elliptical tangent structure is higher by about 5.98%than that of the straight double-cone structure.After optimization,the optimal values of major axis a_(1),minor axis b_(1) of ellipse 1,and major axis a_(2) of ellipse 2 are 560,90 and 409.96 mm,respectively,and the corresponding dewatering rate is about 96.23%.
作者
龚海峰
邱值
彭烨
余保
廖治祥
陈凌
杨阳
GONG Haifeng;QIU Zhi;PENG Ye;YU Bao;LIAO Zhixiang;CHEN Ling;YANG Yang(Engineering Research Centre for Water Oil Recovery Technology and Equipment of Ministry of Education,Chongqing Technology and Business University,Chongqing 400067,China;Chongqing Key Laboratory of Manufacturing Equipment Mechanism Design and Control,Chongqing Technology and Business University,Chongqing 400067,China;State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Qingdao 266580,China)
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
2022年第3期592-609,共18页
Acta Petrolei Sinica(Petroleum Processing Section)
基金
国家自然科学基金项目(22008016,22178036)
重庆市教委科技项目(KJQN202100817,KJQN201900825,KJZDK202000803)
重庆市科技项目(cstc2019jscx-gksbX0032,cstc2019jcyj-msxmX0296,cstc2020jcyj-msxmX0157)资助。
关键词
结构优化
分离特性
椭圆相切型
响应面方法
耦合装置
structural optimization
separation characteristics
elliptic tangent type
response surface method
coupling device
作者简介
第一作者:龚海峰,男,教授,博士,从事废油资源化技术与装备研究,E-mail:ghf79016@163.com;通讯联系人:邱值,男,硕士研究生,从事废油资源化技术与装备研究,E-mail:qzchongqing@163.com。
