横向型波纹管膨胀节设计 论文.doc

摘要 洛阳理工学院毕业设计（论文） PAGE V PAGE 31 横向型波纹管膨胀节设计 摘要 横向型复式拉杆波纹管由中间管所连接的两个波纹管及拉杆、端板和球面与锥面垫圈等结构件组成，是一种能够吸收任意平面内的横向位移并能承受压力推力的膨胀节，还可以叫做补偿器，在管系统中采用波纹补偿器可以在承受系统压力的同时，也吸收因温差较大而引起的热膨胀距离。 复式拉杆波纹管膨胀节的设计要求先选择好波纹管的材料，确定设计温度和设计压力，然后计算复式拉杆波纹管的具体参数:波高、壁厚、波数、波纹管层数，并在此基础上确定波纹管的其他结构件的尺寸和选型，如端板、中间管、加强套环的设计尺寸，拉杆、垫圈、螺母的选型，同时进行复式拉杆膨胀节的各种应力校核、刚度计算、疲劳寿命校核。由于计算的时多参数的不确定性，需同时计算几组不同的数据，再从中选择最合适的方案，用该方案中的数据校核应力疲劳寿命，并最终确定膨胀节的结构设计，完成技术要求。 关键词：补偿器，膨胀节，波纹管，复式拉杆，横向 DESIGN OF UNIVERSAL GINMBALS COMPENSATOR ABSTRACT Horizontal double rod bellows comprises a middle pipe connects two corrugated tube and rod, the end plate and sphere and cone washers and other components, is able to absorb the transverse displacement of arbitrary plane and expansion joint can withstand the pressure thrust, also called compensator, in the pipe system used in corrugated compensator can under the system pressure at the same time, also due to large temperature difference caused by thermal expansion distance. Double rod bellows expansion joint design requirements to choose the corrugated pipe materials, determine the design temperature and pressure, and then calculate the specific parameters of double rod bellows: wave height, thickness, wave number, corrugated pipe layers, and on this basis to determine the size and type of other structure of corrugated pipe, such as end plate the middle pipe, strengthen the design size, collar, tie rod, washer, nut selection, at the same time duplex pull rod expansion of the various stress check calculation, stiffness, fatigue life assessment. Because the calculation when the parameter uncertainties, and calculation of different data sets, and then choose the most suitable plan, stress fatigue life data of the scheme, and ultimately determine the structure design of expansion joints, complete technical requirements. KEY WORDS: Compensator, corrugated pipe, double bars, horizontal 前言 目录 TOC \o 1-3 \h \z \u 前　言 1 第1章 横向型波纹管补偿器概述 2 1.1 概述 2 1.2 工作原理 4 1.3 复式拉杆型膨胀节补偿器的特点 6 1