高压流体105MPa明杆闸板阀设计

高压流体105MPa明杆闸板阀设计(任务书,开题报告,毕业论文说明书23000字,CAD图纸3张)
[摘要] 闸阀是指关闭件(闸板)沿介质通道中心线的垂线方向运动的阀门。闸阀作为采油(气)井口装置的核心部件，担负着开启或截断管道介质并控制高压介质按照人为的需要流向指定地方的任务。本设计就是对它进行展开计算。阀门作为管道系统中的一个重要组成部分，应保证安全可靠地执行管道系统对阀门提出的使用要求。因此，阀门设计必须满足工作介质的压力、温度、腐蚀。流体特性以及操作、制造，安装、维修等方面对阀门提出的全部要求。阀门设计必须明确给定技术数据，所必须具备的基本数据有：阀门用途或种类；介质的工作压力；介质的工作温度；工作介质的物理、化学性能(腐蚀性、易燃易爆性、毒性、物态等；公称通径；结构长度；与管道的连接形式；闸阀的操作方法。闸阀根据阀杆的构造可分为两类：明杆闸阀和暗杆闸阀。阀根据闸板构造型式的不同，又可分为两类：楔式闸阀和平行式单闸板(平板阀)。由设计任务书的要求对3 1/16″10000 Psi 暗杆平行式单闸板阀进行设计计算，要求计算的项目一般有：阀座、闸板密封面设计计算；阀杆的设计及强度验算；阀杆螺母的计算与校核；平行单闸板厚度计算；中腔结构尺寸设计；
 [关键词] 闸阀；闸阀的结构；计算项目

High pressure fluid 105 MPa Bright pole gate valve design
[Abstract] The gate valve is refers to shutting down (damper plate) along the medium channel middle line direction of plumb line movement valve. The gate valve as the extraction (gas) well head assembly's core part, shoulders is opening or the interruption pipeline medium and controls the high-pressured medium according to artificial to need to flow assigns the place the duty. This design is carries on to it launches the computation. A valve's as piping system in important component, should guarantee that carries out the piping system reliably safely the operation requirements which proposed to the valve. Therefore, the valve design must satisfy the actuating medium the pressure, the temperature, the corrosion. The fluid characteristic as well as the operation, the manufacture, aspects and so on installment, services the complete request which proposed to the valve. The valve design must assign the engineering data explicitly, must have the master data includes: Valve use or type; Medium working pressure; Medium operating temperature; Actuating medium physics, chemical properties (corrosiveness, flammable explosion hazard, toxicity, state of matter and so on; Nominal size; Structural length; With pipeline's connection form; Gate valve's operating procedure. The gate valve may divide into two kinds according to valve lever's structure: Bright pole gate valve and dark pole gate valve. Valve according to damper plate structure style difference, may also divide into two kinds: Wedge type gate valve and run-in single damper plate (plate valve). Carries on the design calculation by the design project description's request to 3 1/16 " 105MPa Bright pole gate valve, The request computation's project has generally: Valve seat, damper plate packing surface design calculation; Valve lever's design and intensity checking calculation; Valve stem nut's computation and examination; Parallel single damper plate thickness computation; Mesocoele structure size design;
[Key words] Gate valve;  Gate valve's structure;  Computation project.

主要研究（设计）内容
1．明杆闸板阀门结构设计 
（1）阀体、闸板、阀座、压盖、手轮、螺柱、六角螺母、活节螺栓、圆柱销等的结构设计
（2）确定阀门的结构长度和连接尺寸
（3）确定阀体阀座处的流通通道尺寸
2.总体设计
高压流体3 1/16” 105MPa明杆闸板阀二维装配图
5.2 关键问题
1．承压件壁厚的计算 
2．阀体与阀盖的连接型式和密封结构的确定
3. 阀体强度计算
 

目  录
前言    1
1 绪论    2
1.1 课题背景    2
1.2 国内外现状和发展趋势与研究的主攻方向    2
2 方案论证    4
2.1 平行闸板阀的结构设计原理    4
2.2阀体的功能及构造    6
2.3阀杆的构造    7
2.4 闸阀闸板的构造型式    7
2.5 阀门的密封    8
2.6闸板阀的设计要求    9
3 明杆闸板阀材料的选择    11
3.1阀体的材料选择    11
3.2阀板、阀座的材料选择    13
4 闸板阀关键零件强度校核计算    16
4.1闸板阀阀体受内压时危险截面处的强度校核    16
5 阀的总体及结构设计    18
6 阀门的压力试验    20
6.1阀门的壳体试验    20
6.2阀门的上密封试验    21
6.3阀门的寿命试验    21
7 结果分析    24
7.1 阀门材料分析    24
8 总结    28
参考文献    28
致  谢    29