海底观测网接驳盒装置的机械设计与研究

发布时间：2018-05-10 20:13

本文选题：海底接驳盒装置 + 机械设计与密封技术　；参考：《国家海洋技术中心》2016年硕士论文

【摘要】：建立完备的海底观测网是当今探索和研究海洋的重要手段,而作为观测网节点海底接驳盒装置的研究则是必不可少的。接驳盒装置的基本功能为通信中继、仪器接口转换和电能分配,在海底观测网络中起着连接纽带的作用。随着接入的海底观测仪器设备越来越多,便可以通过主接驳盒节点构建局部观测系统,然后通过光/电缆将节点与主干网络相连,多个这样的局部观测系统连接至主干网上就构建了完整的海底观测网络系统。本文从中低压接驳盒的机械结构设计和研究出发,开展了相关研究工作并解决了接驳盒装置设计所面临的一些技术问题。本文首先阐述了建设海底观测网络的研究背景和研究意义,明确了接驳盒装置的基本功能和组成部分。针对国内外已建成的海底观测网络,详细的介绍了应用在其中的海底接驳盒装置。在接驳盒总体设计方案中,进一步确定了其主要组成部分,并提出了本文研究工作的技术路线和实施方案。在接驳盒舱体的设计研究中,根据接中低压驳盒工作环境的特点,完成了耐压和密封结构设计,并在完成样机加工组装后,进行了稳定性校核和有限元仿真分析,表明舱体设计是合理可靠的。本文对整体装置进行了水静压力试验,表明该设计能够保证耐压性和密封性。针对接驳盒内部散热问题,本文采用了发热源贴合内壁面的高效率散热方式,建立了合理的散热路径;设计了螺杆顶紧机构保障接驳盒装配后热源贴紧舱体内壁;通过舱体分层设计实现舱体内部不同热耗散电子器件的分离,从而提高接驳盒装置整体的散热效率。对所设计的散热方案进行了有限元热分析和实验室试验,舱内温度能够控制在正常工作范围内,验证了散热方案的可行性和可靠性。最后在试验水池中开展了接驳盒装置的布放、运行和回收试验,在长期试验过程中接驳盒系统运行稳定良好,进一步验证了接驳盒整体设计的合理性。
[Abstract]:The establishment of a complete submarine observation network is an important means to explore and study the ocean, and it is necessary to study the submarine connection box as a node of the network. The basic functions of the connection box are communication relay, instrument interface conversion and electric energy distribution, which play the role of link in the submarine observation network. As more and more underwater observation instruments are accessed, local observation systems can be constructed through the main connection box nodes, and then the nodes are connected to the trunk network via light / cable. Several of these local observation systems are connected to the backbone network to form a complete submarine observation network system. Based on the design and research of the mechanical structure of the middle and low voltage connection box, this paper has carried out the related research work and solved some technical problems in the design of the connection box device. In this paper, the research background and significance of building the submarine observation network are described, and the basic functions and components of the connection box device are clarified. Aiming at the submarine observation network which has been built at home and abroad, this paper introduces in detail the submarine connection box device used in it. In the overall design of the connection box, the main components are further determined, and the technical route and implementation scheme of the research work in this paper are put forward. In the design research of the connecting box cabin, according to the characteristics of the working environment of the connection medium and low pressure barge box, the design of the pressure and seal structure is completed. After the prototype is processed and assembled, the stability check and the finite element simulation analysis are carried out. It shows that the design of the cabin is reasonable and reliable. In this paper, the hydrostatic pressure test of the whole unit shows that the design can guarantee the pressure resistance and sealing. Aiming at the internal heat dissipation problem of the connecting box, this paper adopts the high efficiency heat dissipation mode of the heat source attached to the inner wall surface, establishes a reasonable heat dissipation path, and designs a screw top tightening mechanism to ensure the heat source to close the inside wall of the bulkhead after the assembly of the connecting box. In order to improve the overall heat dissipation efficiency of the connection box, the different thermal dissipation electronic devices in the cabin can be separated by the layered design of the cabin. Finite element thermal analysis and laboratory tests were carried out on the designed heat dissipation scheme. The temperature in the cabin could be controlled within the normal working range, which verified the feasibility and reliability of the heat dissipation scheme. Finally, the layout, operation and recovery test of the connection box device are carried out in the test pool. The system runs stably in the long run, which further verifies the rationality of the overall design of the connection box.
【学位授予单位】：国家海洋技术中心
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：P715.5

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