深海热液多腔取样器的开发设计
发布时间：2019-03-15 20:22
【摘要】：本文通过分析取样设备的研究现状,在现有热液取样设备的基础上设计出了一款新的热液取样器。该取样器的取样阀能同时连接六个取样瓶,可以一次获取六个样品,提高了取样效率。该取样器能在高温高压条件下正常工作且具有较强的耐腐蚀性,其结构简单,具备气密保压功能。并根据工作条件的要求对其主要部件进行了尺寸设计、结构设计和强度校核,同时采用二维和三维画图软件绘制其结构图。本文分析了取样器设计的影响因素,确定了技术方案,并通过有限元分析软件对其结构进行了研究分析。采用Fluent分析软件对热液流经取样管时的温度变化规律进行了研究分析,得到了取样速度以及取样管尺寸对热液温度变化的影响规律；采用Ansys Workbench软件对阀芯与阀座的密封进行分析,得出了阀芯半锥角对密封性能的影响规律；对阀芯进行了一阶线性屈曲分析,获得了阀芯发生一阶线性屈曲时所需的压力；对热液进入取样腔撞击活塞的瞬间进行了分析,分析表明活塞的强度满足要求以及冲击造成的活塞振动不会影响O型圈的密封性能。
[Abstract]:In this paper, a new hydrothermal sampler is designed on the basis of the existing hydrothermal sampling equipment by analyzing the research status of the sampling equipment. The sampling valve of the sampler can connect six sample bottles at the same time, and can obtain six samples at a time, which improves the sampling efficiency. The sampler can work normally under high temperature and high pressure and has strong corrosion resistance. Its structure is simple and has the function of gas tight pressure keeping. According to the requirements of working conditions, the size design, structural design and strength check of the main components are carried out. At the same time, the two-dimensional and three-dimensional drawing software is used to draw their structural drawings. In this paper, the influencing factors of the sampler design are analyzed, the technical scheme is determined, and the structure of the sampler is studied and analyzed by the finite element analysis software. The temperature variation law of hydrothermal flow through the sampling tube was studied by using Fluent analysis software, and the influence of sampling speed and sampling tube size on the hydrothermal temperature change was obtained, and the influence of the sampling speed and the size of the sampling pipe on the temperature change of the hydrothermal fluid was studied and analyzed. Ansys Workbench software is used to analyze the seal of valve core and valve seat, and the influence of half cone angle of valve core on seal performance is obtained, the first order linear buckling analysis is carried out on the valve core, and the pressure required for the first order linear buckling of valve core is obtained. An analysis is made of the moment when hydrothermal fluid enters the sampling chamber to impact the piston. The analysis shows that the piston strength meets the requirements and the piston vibration caused by the impact does not affect the sealing performance of the O-ring.
【学位授予单位】：青岛科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P715
本文编号：2440955
[Abstract]:In this paper, a new hydrothermal sampler is designed on the basis of the existing hydrothermal sampling equipment by analyzing the research status of the sampling equipment. The sampling valve of the sampler can connect six sample bottles at the same time, and can obtain six samples at a time, which improves the sampling efficiency. The sampler can work normally under high temperature and high pressure and has strong corrosion resistance. Its structure is simple and has the function of gas tight pressure keeping. According to the requirements of working conditions, the size design, structural design and strength check of the main components are carried out. At the same time, the two-dimensional and three-dimensional drawing software is used to draw their structural drawings. In this paper, the influencing factors of the sampler design are analyzed, the technical scheme is determined, and the structure of the sampler is studied and analyzed by the finite element analysis software. The temperature variation law of hydrothermal flow through the sampling tube was studied by using Fluent analysis software, and the influence of sampling speed and sampling tube size on the hydrothermal temperature change was obtained, and the influence of the sampling speed and the size of the sampling pipe on the temperature change of the hydrothermal fluid was studied and analyzed. Ansys Workbench software is used to analyze the seal of valve core and valve seat, and the influence of half cone angle of valve core on seal performance is obtained, the first order linear buckling analysis is carried out on the valve core, and the pressure required for the first order linear buckling of valve core is obtained. An analysis is made of the moment when hydrothermal fluid enters the sampling chamber to impact the piston. The analysis shows that the piston strength meets the requirements and the piston vibration caused by the impact does not affect the sealing performance of the O-ring.
【学位授予单位】：青岛科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P715
【参考文献】
相关期刊论文 前1条
1 苏彬;张成;孙万仓;贺旭明;赵斌;;钛合金TC4制压力容器筒体外压失稳的有限元分析[J];金属材料与冶金工程;2014年03期
，本文编号：2440955
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