摘要
为了解决原油开采过程中伴生气的存在会影响介质间的分离效率,同时无效放空会影响环境的问题,基于旋流分离原理提出了一种多级分离结构的脱气除油一体化旋流器,其分为外层气-液分离腔和内层液-液分离腔,实现了油气水三相之间的高效分离。利用正交试验结合计算流体动力学软件对外层气-液分离腔旋流腔圆柱段长度(A)、锥角(B)、排气管插入深度(C)进行结构参数优选。分别对试验结果进行直观分析和方差分析,两种方法所得结果具有一致性,最终得到理想的参数:气液旋流腔圆柱段长度为280 mm、锥角为5°、排气管插入深度为125 mm,使分离效率提高到95%以上,并通过室内试验对该多相流分离旋流器分离效果进行验证。
In order to solve the problem that the existence of associated gas in the process of crude oil exploitation will affect the separation efficiency between the media and the ineffective emptying will affect the environment.Based on the principle of cyclone separation,we proposed an integrated cyclone design for gas and oil removal with hierarchical separated structure.This cyclone is divided into outer gas-liquid separation chamber and inner liquid-liquid separation chamber,achieving efficient separation among gas,water and oil.The structural parameters including length of cylinder part(A),cone angle(B)and inserted depth of escape-pipe(C)were optimized by the orthogonal test combined with computational fluid dynamics software.The results of comparing between direct analysis and variance analysis of the orthogonal test were coherently,the ideal parameters were obtained finally,and the separation efficiency was improved to over 95%,and the separation effect of multiphase flow separation cyclone was verified by laboratory test.
作者
卢秋羽
刘合
宋健
Lu Qiuyu;Liu He;Song Jian(School of Mechanical Science and Engineering,Northeast Petroleum University,Heilongjiang Daqing 163318,China;Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083,China)
出处
《机械科学与技术》
CSCD
北大核心
2020年第11期1691-1697,共7页
Mechanical Science and Technology for Aerospace Engineering
关键词
脱气除油
旋流器
分离效率
正交试验
参数优选
computational fluid dynamics
hydro cyclone
efficiency
orthogonal test
structural parameter optimization
作者简介
卢秋羽(1993-),博士研究生,研究方向为旋流分流理论及应用,luqiuqiu93@163.com。
