曲面式集油器内部流道结构的优化研究
发布时间：2018-11-04 15:02
【摘要】：溢油污染治理是海洋环境保护中的世界性难题之一,机械式溢油回收技术可有效的清除海上溢油,并可以有效的回收石油资源,且溢油的回收过程基本不会造成二次污染,因此是目前相对理想的溢油治理手段。然而目前机械溢油回收技术的发展仍不够成熟,开发出的产品大多存在着结构复杂、回收效率较低、适用环境有限等不足之处,无法满足人们对溢油回收提出的要求。 本文在概括总结国内外各种溢油回收技术的工作机理和特点的基础上,通过对比分析,确定以曲面式集油器作为本论文的研究对象,对其进行结构优化以期得到更好的溢油回收效果。为此,本文主要开展了以下几方面的工作： (1)通过对比分析现有的各种类型的溢油回收装置的工作原理及优缺点,确定以动态曲面式集油器为优化对象,以曲面流道出口的挑角和进口流道的形状为优化参数,建立具有不同挑角的几何模型。 (2)以流体介质为油水混合物,利用流体仿真软件FLUENT中的MIXTURE混合物模型模拟计算所建结构模型内部混合物的流动,以得到各模型内部的流场特性；分析油水混合物中油的回收效率随着流道出口挑角的变化。 (3)然后对进口流道上缘的半径大小选取若干个不同的值,通过网格生成软件GAMBIT建立几何模型,再次利用流体仿真软件FLUENT中的MIXTURE混合物模型模拟计算所建结构模型内部混合物的流动,以得到油的回收效率的趋势。
[Abstract]:Oil spill pollution control is one of the worldwide problems in marine environmental protection. Mechanical oil spill recovery technology can effectively remove oil spills from the sea and recover oil resources effectively, and the recovery process of oil spills will not cause secondary pollution. Therefore is the relatively ideal oil spill control means at present. However, at present, the development of machinery oil spill recovery technology is still not mature, and most of the products developed have some shortcomings, such as complex structure, low recovery efficiency, limited application environment and so on, which can not meet the requirements of oil spill recovery. On the basis of summing up the working mechanism and characteristics of various oil spill recovery technologies at home and abroad, this paper determines that the curved oil collector is the research object of this paper. The structure of the oil spill is optimized to get better recovery effect. For this reason, the main work of this paper is as follows: (1) by comparing and analyzing the working principle, advantages and disadvantages of various types of oil spill recovery devices, it is determined that the dynamic curved oil collector is the optimized object. The geometric model with different lifting angles is established with the optimum parameters of the angle at the outlet of the curved channel and the shape of the inlet channel. (2) using fluid medium as oil-water mixture, using MIXTURE mixture model of fluid simulation software FLUENT to simulate the flow of the inner mixture of the structural model, and to obtain the flow field characteristics of each model; The recovery efficiency of oil from oil-water mixture is analyzed with the angle of outlet. (3) then several different values are selected for the radius of the upper edge of the inlet runner, and the geometric model is established by the mesh generation software GAMBIT. The MIXTURE mixture model in the fluid simulation software FLUENT is used to simulate the flow of the mixture inside the structural model to obtain the trend of oil recovery efficiency.
【学位授予单位】：大连海事大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：U698.7
本文编号：2310193
[Abstract]:Oil spill pollution control is one of the worldwide problems in marine environmental protection. Mechanical oil spill recovery technology can effectively remove oil spills from the sea and recover oil resources effectively, and the recovery process of oil spills will not cause secondary pollution. Therefore is the relatively ideal oil spill control means at present. However, at present, the development of machinery oil spill recovery technology is still not mature, and most of the products developed have some shortcomings, such as complex structure, low recovery efficiency, limited application environment and so on, which can not meet the requirements of oil spill recovery. On the basis of summing up the working mechanism and characteristics of various oil spill recovery technologies at home and abroad, this paper determines that the curved oil collector is the research object of this paper. The structure of the oil spill is optimized to get better recovery effect. For this reason, the main work of this paper is as follows: (1) by comparing and analyzing the working principle, advantages and disadvantages of various types of oil spill recovery devices, it is determined that the dynamic curved oil collector is the optimized object. The geometric model with different lifting angles is established with the optimum parameters of the angle at the outlet of the curved channel and the shape of the inlet channel. (2) using fluid medium as oil-water mixture, using MIXTURE mixture model of fluid simulation software FLUENT to simulate the flow of the inner mixture of the structural model, and to obtain the flow field characteristics of each model; The recovery efficiency of oil from oil-water mixture is analyzed with the angle of outlet. (3) then several different values are selected for the radius of the upper edge of the inlet runner, and the geometric model is established by the mesh generation software GAMBIT. The MIXTURE mixture model in the fluid simulation software FLUENT is used to simulate the flow of the mixture inside the structural model to obtain the trend of oil recovery efficiency.
【学位授予单位】：大连海事大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：U698.7
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