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摘要：锅炉是一种将煤炭、石油、可燃气体和生物质（木材、甘蔗渣、桔梗、城市垃圾等）所储藏的化学能以及工业生产中的余热或其他热源，转化为一定温度和压力的水或蒸汽的换热设备。锅炉的主要任务是把燃料中的化学能最有效的转化为热能。工业锅炉在满足环境保护要求的条件下，应能达到额定效率，工作安全可靠，热效率高，钢材消耗量少，且制造、安装检修方便。为达到上述目的，在设计锅炉时，就要选择合适的炉型和燃烧方式，蒸汽的确定炉膛及锅炉各受热面的形状，尺寸和相对位置，保证烟气和工质在锅炉的各部分有合理的流速和压力。本次设计的课题为SHL15-1.25/350-W锅炉热工设计，该锅炉属于低压小型工业蒸汽锅炉，这种锅炉锅筒与烟气流速方向垂直，故称为“横置式”，受到应用条件的限制，需要停炉和起炉，负荷变化，这就要求锅炉炉膛能够适应各种负荷。本课题的基本内容主要有三部分：第一部分主要设计锅炉炉膛及主要受热面的结构；第二部分计算额定负荷下锅炉的热力计算；第三部分主要绘制锅炉受热面的结构图以及锅炉总图、本体图、集箱图等。34047
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毕业论文关键词：受热面结构；换热设备；热力计算
Abstract：abstract Boiler is a kind of coal, oil, combustible gas and biomass (wood, bagasse, platycodon grandiflorum, municipal waste, etc.) are stored chemical energy and waste heat in industrial production or other heat source, converted to a certain temperature and pressure of water or steam heat exchange equipment.The main task of the boiler is the chemical energy of fuel is the most effective is converted into heat energy.Industrial boiler under the condition of meet the requirements of environmental protection, should be able to achieve rated efficiency, safe and reliable work, high thermal efficiency, less consumption of steel, and manufacture, convenient installation and maintenance.To achieve the above purpose, in the design of the boiler, must choose the appropriate type furnace and the combustion mode, the determination of steam chamber of a stove or furnace and boiler heating surface shape, size and relative position, guarantee the boiler flue gas and working medium has reasonable flow rate and pressure of parts.The topic of this design for SHL15-1.25/350 - W boiler thermal design, belong to the low pressure of small industrial steam boiler, the boiler direction perpendicular to the boiler drum and flue gas velocity is called "horizontal", subject to the conditions of application conditions, need to stop the furnace and furnace, load changes, which requires the boiler furnace can adapt to all kinds of load.The basic content of this topic mainly has three parts: the first part of main boiler furnace design and the structure of the main heating surface;The second part is calculated under the rated load of boiler thermodynamic calculation;The third part mainly draw boiler heating surface structure and general layout, body figure, header figure, etc.
KeyWords：Heating surface structure;Heat transfer equipment;Thermodynamic calculation
目 录
摘要
Abstract
前言
1 工业锅炉的构成工作工程及技术经济指标1
1.1 工业锅炉的构成1
1.1.1 锅炉本体1
1.1.2 锅炉辅助设备1
1.2 工业锅炉的构成 1
1.2.1 炉内过程2
1.2.2 锅内过程2
1.3 工业锅炉的技术经济指标2
2 工业锅炉热工计算3
2.1 工业锅炉规范3
2.1.1 设计参数3
2.1.2 燃料特性3
2.1.3 辅助计算4
2.2 工业锅炉热平衡计算及燃料消耗量计算7
2.3 工业锅炉炉膛特性及热力计算13
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