摘要
在我国超稠油开采过程中出现了高浓度的硫化氢气体,给现场的取样工作带来极大的困扰。目前,国内研究生产的取样器大多为开放式,这些取样器存在着残留物质清洗困难、原料利用不充足、破坏环境严重、以及使用过程中发生危险的几率大等等弊端,而国外生产的取样器价格昂贵,不能满足实际条件下的经济因素。因此在国内生产的设备弊端多、国外设备价格高的条件下设计一款新型的密闭环保取样器是非常有必要的。通过对现场实际情况的调研,基于活塞式取样器的原理,通过对目前取样器装置的结构与工作原理的分析,运用Solid Works对取样器进行建模与装配,得到取样器的三维模型。使用软件建立取样器的简化模型,通过应用FLUENT中动网格部分的UDF编写成功的实现了液体吸入取样器内部。运用FLUENT数字模拟软件,通过对流体非定常流的数值模拟,控制不同的抽吸速度分别得到气体的体积分布,并计算最终的含气率与含水率,再对模拟结果进行分析,获得抽吸速度对于气体含量的影响。
High concentration of hydrogen sulfide gas appears in the development process of super heavy oil, which sets back the sampling work. The current domestic sampler is open type. This kind of sampler has many disadvantages, such as material waste, hard residual cleaning and big environment pollution risk and so on. As the price of foreign samplers are very high, it is of great important significant to design a new airtight environmental sampler. Base on the actual situation of research and the principle of piston sampler, after studying the structure and the working principle of current piston sample, three-dimensional model of the sampler was obtained by using Solid Works modeling and assembling. Simplified sampler model can be built with software by applying the UDF in FLUENT moving mess part. With the use of digital simulation software FLUENT, numerical simulation of unsteady fluid flow, controlling different pumping speed, volume distribution of gas was obtained,and the final gas rate and moisture content were calculated, and then the simulation results were analyzed to obtain effect of suction velocity on the gas content.
出处
《当代化工》
CAS
2015年第7期1642-1644,共3页
Contemporary Chemical Industry
关键词
取样器
硫化氢
抽吸速度
数值模拟
Sampler
Hydrogen sulfide
Suction speed
Mumerical simulation
