开齿螺旋翅片热管低温省煤器实验研究  

Experimental Study of Low-temperature Economizer with Slot-helix Finned Thermosyphon

作　　者：钟志良 ZHONG Zhi-liang(Fujian Longking Environmental Protection Co.,Ltd.,Longyan Fujian 364000,China)

机构地区：[1]福建龙净环保股份有限公司,福建龙岩364000

出　　处：《中国环保产业》2021年第10期41-44,48,共5页China Environmental Protection Industry

摘　　要：热管低温省煤器是一种潜在的燃煤电厂常规低温省煤器的替代产品,解决了常规低温省煤器的泄漏问题。文章通过实验研究了开齿螺旋翅片热管低温省煤器的换热性能。实验结果表明,热管低温省煤器在水侧入口水温为35℃时,有较好的传热表现;在一定工况下,热管低温省煤器存在一个优选的管内工质温度,能使热管具有较好的传热性能;对于本实验,热管铅垂倾斜15°和水平倾斜15°时传热系数明显高于其他布置方式。Thermosyphon type low-temperature economizer is a potential substitute for conventional low-temperature economizer in coal-fired power plants,and can be a solution to the leakage problem of conventional low-temperature economizer.In this paper,the heat transfer performance of lowtemperature economizer with slot-helix finned thermosyphon was studied experimentally.The experimental results show that thermosyphon type low-temperature economizer has a good heat transfer performance when the inlet water temperature is 35℃.Under certain working conditions,thermosyphon type low-temperature economizer has a optimum working temperature of the working fluid in the tube,which makes the thermosyphon have better heat transfer performance;as for this experiment,the heat transfer coefficient of the low-temperature economizer is 3-4W/(m2·K)higher than that of the other arrangement when the thermosyphon is inclined 15°vertically and 15°horizontally.

关 键 词：热管 螺旋开齿翅片管 换热性能 实验研究 

分 类 号：X701[环境科学与工程—环境工程]