摘要:本次毕业设计结合专业特点选定设计的题目为SHL12-1.25/250-A型锅，并对其进行相应的热工设计和计算。本次毕业所要设计的锅炉准备采用双锅筒横置式水管锅炉,在炉膛后面安装上、下锅筒和锅炉管束，水冷壁密布在炉膛四周和炉顶，炉膛后墙上部可以布置烟窗，后墙水冷壁在炉膛后墙处拉稀形成凝渣管，本次锅炉热工设计的基本要求是锅炉能够安全可靠的运行。在锅炉设计的过程中,燃料选用的是吉林通化二类烟煤，锅炉是需要消耗大量燃料才能维持其运行的动力设备，而锅炉工作的安全性，经济性和环保性对燃料性质的要求十分的苛刻。整个设计过程除了会进行燃料燃烧计算外还进行炉膛、凝渣管、过热器、锅炉管束、省煤器和空气预热器的设计计算，最终设计结果用AUTO CAD图纸进行更加详细的表述。68702

毕业论文关键词: 锅炉原理 工业锅炉设备 双锅筒横置式水管锅炉 AUTO CAD

Design of shl 12-1.25 / 250 - A boiler

Abstract: The graduation design combined with the professional characteristics of the selected design for the title SHL12-1.25 / 250-A-type pot, and its corresponding thermal design and calculation. The boiler to be designed for this graduation is to be equipped with a double-drum horizontal water pipe boiler. The upper and lower drums and boiler tubes are installed behind the furnace. The water-cooled wall is surrounded by the furnace and the top of the furnace. Wall wall in the furnace wall at the back of the wall to form a slag pipe, the boiler thermal design of the basic requirements of the boiler can be safe and reliable operation. In the process of boiler design, the fuel is selected by Jilin Tonghua two kinds of bituminous coal, the boiler is the need to consume large amounts of fuel in order to maintain its operation of the power equipment, and boiler work safety, economy and environmental protection of the nature of the fuel requirements harsh. In addition to the design process will be carried out in addition to the fuel combustion calculation, but also for the furnace, slag pipe, superheater, boiler tube economizer economizer preheater design calculation, the final design results with AUTO CAD drawings for more detailed statement.

Keywords: Actual boiler principle  Industrial boiler equipment

          Double drum horizontal water pipe boiler   AUTO CAD

目录

摘要 1

Abstract 2

目录 3

绪论 5

第一章 锅炉结构设计简述 6

1.1方案简述 6

1.2锅炉结构以及特性 6

1.3锅炉各部分结构参数 7

第二章 燃料燃烧计算 8

2.1空气平衡计算 8

2.2理论空气量和理论烟气量计算 9

2.2.1 理论空气量 9

2.2.2 1千克燃料完全燃烧所需空气量 10

2.3各受热面烟道中烟气特性计算 10

2.4空气焓和烟气焓计算 14

2.5锅炉热平衡计算及燃料消耗计算 15

第三章 炉膛设计计算 17

3.1炉膛结构计算 17

3.1.1炉膛周界面积计算 17