燃气锅炉前烟箱绝热结构设计研究（毕业论文）.docVIP

PAGE IV 摘 要 目前燃油燃气锅炉具有一个共性问题就是前烟箱温度太高，本文首先介绍了现有解决锅炉前烟箱温度高的措施，加装保温材料和利用水套降温；其次本人利用所学知识对1t/h燃气锅炉进行了合理的传热计算，并设计出结构布置和利用AUTO cad绘画出结构图纸；而后介绍了自己设计的一种新型锅炉前烟箱，包括其加工方法和利用AUTO cad绘画出结构图纸；最后利用fluent软件模拟出新设计的前烟箱和老式前烟箱保温效果，结果表明新设计的前烟箱对回收锅炉前烟箱散失的热量作出了贡献。 关键词：燃气锅炉；热力计算；前烟箱；保温；水套 Abstract Currently fuel gas boiler has a common problem the temperature of Front smoke box is too high, firstly the research describes the existing solutions of the problem including adding thermal insulation material and using water sets for cooling; secondly with the knowledge learned from classes, the researcher makes reasonable calculations of heat transfer on 1T/h fuel gas boiler and designs its structure layout which has been shown through Auto CAD drawing; then the researcher introduces his new design of Front smoke box including its producing process and the Auto CAD drawing of its structure. Finally, using fluent software to compare the thermal insulation effects between the former design and the new design and it shows that the new design of Front smoke box is better than the former one due to better recovery of the dissipation heat in the Boiler. Keywords: Gas-fired boilers; Thermodynamic; Calculation; Front smoke box; Insulation; Water sets 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc 摘 要 PAGEREF _Toc \h I HYPERLINK \l _Toc Abstract PAGEREF _Toc \h II HYPERLINK \l _Toc 1 文献综述 PAGEREF _Toc \h 4 HYPERLINK \l _Toc 1.1 前言 PAGEREF _Toc \h 4 HYPERLINK \l _Toc 1.2 燃油燃气锅炉高温烟箱结构目前发展现状 PAGEREF _Toc \h 4 HYPERLINK \l _Toc 1.2.1 高温前烟箱加装水套 PAGEREF _Toc \h 4 HYPERLINK \l _Toc 1.2.2 卧式锅炉前烟箱 PAGEREF _Toc \h 6 HYPERLINK \l _Toc 1.3 高温烟箱利用的耐温材料 PAGEREF _Toc \h 7 HYPERLINK \l _Toc 1.3.1 高温烟箱利用耐火纤维做高温炉衬材料 PAGEREF _Toc \h 7 HYPERLINK \l _Toc 1.3.2 高效保温绝热涂料 PAGEREF _Toc \h 8 HYPERLINK \l _Toc 1.4 本文研究方向 PAGEREF _Toc \h 8 HYPERLINK \l _Toc 2 1t/h燃气锅炉传热计算及结构设计 PAGEREF _Toc \h 9 HYPERLINK \l _Toc 2.1 设计计算对象和已知条件 PAGEREF _Toc \h 9 HYPERLINK \l _Toc 2.2 理论空气量及燃烧产物 PAGEREF _Toc \h 1