《1000大卡有机热载体加热炉盘管组件焊接工艺设计》》-毕业论文.docVIP

PAGE 精品 毕业设计论文 论文题目：1000大卡 有 机 热 载 体 加 热 炉 盘 管 组 件 焊 接 工 艺 设 计 系 部： 焊接技术及自动化 作者姓名： 指导老师： 完成日期： 摘 要：有机热载体锅炉又称导热油炉。近几年来，随着我国国民经济的发展和加入世贸组织，该型锅炉的市场需求量越来越大，特别是在化工、纺织、印染、材料加工等行业，其用途越来越广。有机热载体锅炉的最大特点是低压高温，即在较低的工作压力下获得较高的介质温度，且介质仍为液相，不发生相变，这是其他类型的锅炉所不及的。作为热载体炉的核心盘管组件，其焊接质量的好坏将直接影响到热载体炉的热交换能力，且对安全造成一定的威胁，根据图纸的要求及规定，炉管对接应采用氩弧焊，容易控制焊缝成型及实现单面焊双面成型。圆钢使用的是Q235A材料，与炉管焊接，都是低碳钢材料，焊接性良好，几乎可以选择所有的焊接方法，并能保证焊接接头的良好质量，焊条电弧焊操作方便、使用灵活，适用于炉管与圆钢的焊接。选用合适的焊接材料、焊接工艺参数及工艺措施，研究焊缝对焊接工艺评定的要求及焊接工艺评定报告的引用，确定锅炉焊接对焊工技能及焊工资格要求，编制合适的焊接工艺规程。对焊缝的成形和焊接质量进行分析，确定焊接工艺设计的可行性。 关键词：盘管 炉管 圆钢 焊接性 焊接工艺 Abstract：Organic heat carrier furnace also known as the heat conduction oil stove. In recent years, as Chinas national economic development and the WTO, the boiler of the growing market demand, particularly in the chemical industry, textile, printing and dyeing, materials processing industries, its use has become an increasingly widespread. Organic heat carrier furnace biggest characteristics of low-temperature, that is, at the low working pressure for higher temperature, and the media is still liquid, without transformation, this is another type of the boiler. As hot carrier stove core coil components, weld quality is good or bad will directly affect the heat carrier furnace heat capacity, and on the safety of threat, so the study of the coil Assembly of structural features and welding process is essential. According to the drawings and the furnace pipe butt should use argon-arc welding, easy to control the welding seam forming and realization of single-sided molding of welding. Round steel using Q235A materials, and furnace pipe welding, is mild steel material, weldability good, almost all of the welding methods and can guarantee the good quality of welded joints, arc welding easy operation, flexible, s