空气钻井高压气体放空消音器的设计

发布时间：2018-03-31 02:21

  本文选题：消音器　切入点：复合抗性　出处：《东北石油大学》2017年硕士论文

【摘要】：本论文综合运用模拟仿真技术(CFD-计算流体动力学),分析不同类型的消音器结构,并研究其流体特性,综合衡量其消声性能;结合空气钻井的实际工况需要,着重分析研究抗性消音器。本文主要研究工作包括:消声器的结构设计、分析边界条件等参数变化对消声器消声性能的影响;结合实际应用情况分析CFD法来模拟分析消声器性能的有效性。压力损失是消音器设计需重点关注分析的,其主要受消音器的结构以及边界条件的设置等情况影响,验证CFD法计算抗性消音器压力损失的有效性,用频谱分析法研究,对抗性消音器进行设计,研究其消声特性,结合抗性消音器的流体动力学特性研究抗性消音器的综合性能。本论文主要目的是提供一个基于CFD仿真和实际应用相结合的抗性消音器整体结构设计方法,通过在设计中综合考虑流体动力学特性和声学特性提高抗性消音器的设计质量。本文用CFD法定量地研究了简单消音器的压力损失随消音器结构参数和边界条件的变化规律,结合己有的消音器声学研究结论,研究了基于CFD仿真的抗性消音器设计方法,总结了相应的设计步骤:设计目标确定、消音器气流参数确定、结构初步设计、压力损失计算、消音器内部结构设计和试验验证等。
[Abstract]:In this paper, CFD-Computational fluid Dynamics (CFD) technique is used to analyze the structure of different types of silencers, to study their fluid characteristics, to evaluate their sound attenuation performance, and to combine with the actual operating conditions of air drilling. The main work of this paper is as follows: the structural design of muffler and the influence of boundary conditions on the muffler's performance; CFD method is used to simulate and analyze the effectiveness of muffler performance. The pressure loss is analyzed by the silencer design, which is mainly affected by the silencer structure and the setting of boundary conditions. To verify the effectiveness of the CFD method in calculating the pressure loss of the resistant silencers, the spectrum analysis method is used to design the resistant silencers, and the characteristics of the anti-silencers are studied. The purpose of this paper is to provide a design method for the overall structure of resistant silencers based on CFD simulation and practical application. The design quality of resistant silencers is improved by considering both hydrodynamic and acoustic characteristics in the design. The variation of pressure loss of simple silencers with structural parameters and boundary conditions of simple silencers is studied quantitatively by CFD method. Combined with the acoustics research conclusions of existing silencers, the design method of resistant silencers based on CFD simulation is studied. The corresponding design steps are summarized as follows: determination of design objectives, determination of airflow parameters of silencers, preliminary design of structures, calculation of pressure loss. Silencer internal structure design and test verification.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE927
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本文编号：1688736