燃油热水锅炉的改进设计与分析  

Improved Design of an Oil-fired Hot-water Boiler and Its Analysis

作　　者：黄惠兰[1] 邬志敏[1] 李刚[1] 覃建平 

机构地区：[1]上海理工大学动力工程学院,上海200093 [2]南宁新峰技术研究所,广西南宁530005

出　　处：《热能动力工程》2006年第5期461-464,共4页Journal of Engineering for Thermal Energy and Power

摘　　要：传统的壳管式热水锅炉体积大,结构复杂,热应力集中,产品成本高,安装、售后及现场维修困难。为克服传统热水锅炉的缺点,改进设计燃油热水锅炉的结构为组环式。测试发热量为350 kW成品炉的主要热工参数,进行热力分析及动力分析。表明了组环式热水锅炉独特的换热结构可减小其热应力,增强炉内的对流换热程度。炉膛辐射换热空间和辐射换热面较大,换热性能显著。在总换热量恒定时,相比于壳管式热水锅炉,组环式锅炉的体积小,换热面积少,金属耗用量减少,性能价格比增强。Traditional shell-and-tube type hot water boilers are characterized by a large volume,a complicated structure with thermal stress concentrations,high production cost and occasional difficulties in erection,after-sales and on-site maintenance.To overcome the shortcomings of the traditional hot-water boilers,the design of the oil-fired hot water boilers have been improved on to assume a group-annulus structure.A thermal and dynamic analysis was performed of the thermodynamic parameters of a finished product boiler with a tested heat generation amount equivalent to 350 kW.The results of the analysis indicate that the original and unique heat exchange structure of group-annulus type hot-water boilers can reduce thermal stresses and intensify convection heat exchange in the boilers.The radiation heat-exchange space and surfaces inside the furnace are comparatively large,leading to an outstanding heat-exchange performance.When the total heat-exchange quantity is constant,the group-annulus type boilers feature a small volume and heat-exchange surface area,a low metal consumption and a better performance-price ratio when compared with shell-tube type boilers.

关 键 词：热水锅炉 结构 分析 

分 类 号：TK224[动力工程及工程热物理—动力机械及工程]