海水电液换向阀的研究
发布时间：2018-12-18 17:52
【摘要】：海水电液换向阀是液压支架系统的一个重要组成部分，其性能的好坏直接影响到支架工作的稳定。目前，国外发达国家在轮船支架开发中已取得了显著的成效，其开发的支架自动化程度高、安全可靠、经济实用。因此，研究以海水为工作介质的电液换向阀对我国海洋事业的发展具有划时代的意义。 由于海水机理不同于油液，不能把油压元件直接应用到水液压系统中。本文分析了国内外海水电液换向阀研究现状，吸收国外先进海水电液换向阀的成熟技术，提出了符合我国国情的海上专用海水电液换向阀的研究方案。通过分析海上工作环境以及海水机理的特殊性，，选用新型材料和密封形式在一定程度上解决工作介质带来的泄漏和磨损问题，为换向阀的研制提供了前提条件；对比分析各类阀芯结构形式，确定了以球阀式先导、锥阀式为主阀的阀芯结构可行性。在此基础上对先导阀和主阀运动过程进行研究，建立先导阀、主阀开启和关闭的动态数学模型，利用Matlab\Simulink仿真软件对数学模型进行仿真分析，其结果表明该方案的合理性。根据先导阀的工况，对海水电液换向阀所用的电磁铁结构进行ANSYS二维静态建模仿真，分析电磁铁外轭、衔铁、底座、线圈之间的结构参数对电磁吸力的影响。分析结果为节约材料、缩小尺寸、减少功耗提供了理论依据，为最终实现海水电液换向阀向小型化方向发展奠定了基础。
[Abstract]:Marine electro-hydraulic directional valve is an important part of hydraulic support system, and its performance directly affects the stability of the support. At present, the developed countries have achieved remarkable results in the development of ship support, which has high degree of automation, safety and reliability, economic and practical. Therefore, the study of electro-hydraulic directional valve with seawater as working medium is of epoch-making significance to the development of marine industry in China. Because the mechanism of seawater is different from that of oil, oil pressure elements can not be directly applied to water hydraulic system. This paper analyzes the present research situation of sea water electro-hydraulic directional valve at home and abroad, absorbs the mature technology of foreign advanced sea water electro-hydraulic directional valve, and puts forward the research scheme of sea water electro-hydraulic directional valve suitable for the national conditions of our country. By analyzing the particularity of marine working environment and seawater mechanism, selecting new materials and sealing forms to solve the leakage and wear problems caused by working medium to a certain extent, which provides a prerequisite for the development of directional valve. By comparing and analyzing all kinds of valve core structure, the feasibility of valve core structure with ball valve pilot and cone valve as main valve is determined. On this basis, the motion process of pilot valve and main valve is studied, and the dynamic mathematical model of pilot valve and main valve opening and closing is established. The simulation analysis of the mathematical model is carried out by using Matlab\ Simulink simulation software. The results show that the scheme is reasonable. According to the working condition of the pilot valve, the electromagnet structure used in the seawater electro-hydraulic directional valve is modeled and simulated by ANSYS, and the influence of the structure parameters between the yoke, armature, base and coil of the electromagnet on the electromagnetic suction is analyzed. The results provide a theoretical basis for material saving, size reduction and power consumption reduction, and lay a foundation for the ultimate development of seawater electro-hydraulic directional valve towards miniaturization.
【学位授予单位】：武汉纺织大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH137.522
本文编号：2386253
[Abstract]:Marine electro-hydraulic directional valve is an important part of hydraulic support system, and its performance directly affects the stability of the support. At present, the developed countries have achieved remarkable results in the development of ship support, which has high degree of automation, safety and reliability, economic and practical. Therefore, the study of electro-hydraulic directional valve with seawater as working medium is of epoch-making significance to the development of marine industry in China. Because the mechanism of seawater is different from that of oil, oil pressure elements can not be directly applied to water hydraulic system. This paper analyzes the present research situation of sea water electro-hydraulic directional valve at home and abroad, absorbs the mature technology of foreign advanced sea water electro-hydraulic directional valve, and puts forward the research scheme of sea water electro-hydraulic directional valve suitable for the national conditions of our country. By analyzing the particularity of marine working environment and seawater mechanism, selecting new materials and sealing forms to solve the leakage and wear problems caused by working medium to a certain extent, which provides a prerequisite for the development of directional valve. By comparing and analyzing all kinds of valve core structure, the feasibility of valve core structure with ball valve pilot and cone valve as main valve is determined. On this basis, the motion process of pilot valve and main valve is studied, and the dynamic mathematical model of pilot valve and main valve opening and closing is established. The simulation analysis of the mathematical model is carried out by using Matlab\ Simulink simulation software. The results show that the scheme is reasonable. According to the working condition of the pilot valve, the electromagnet structure used in the seawater electro-hydraulic directional valve is modeled and simulated by ANSYS, and the influence of the structure parameters between the yoke, armature, base and coil of the electromagnet on the electromagnetic suction is analyzed. The results provide a theoretical basis for material saving, size reduction and power consumption reduction, and lay a foundation for the ultimate development of seawater electro-hydraulic directional valve towards miniaturization.
【学位授予单位】：武汉纺织大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH137.522
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