低流阻热管的换热性能和阻力特性试验研究  

Experimental Study on Heat Transfer Performance and Resistance Characteristics of Low Flow Resistance Heat Pipe

作　　者：刘龙 王广兵 赵永国 孙俊威 LIU Long;WANG Guang-bing;ZHAO Yong-guo;无(China Energy Heze Power Generation;Guodian Nanjing Electric Power Test Research Co.,Ltd.)

机构地区：[1]国家能源菏泽发电有限公司 [2]国电南京电力试验研究有限公司

出　　处：《电站系统工程》2023年第2期33-36,共4页Power System Engineering

摘　　要：以小型热管式空气预热器试验平台为研究对象,测试热管换热器热管管束气流方向的温度梯度和高、中、低温区单位换热面积对应的换热功率,测试烟气侧、空气侧阻力,测试单支高、中、低温热管冷端温度和布置倾角随热源功率变化的趋势。验证了低流阻热管的换热性能和阻力特性,为电厂进行热管空预器设计和改造提供参考。The temperature gradient in the direction of air flow and the heat transfer power per unit area of heat transfer in the high, middle and low temperature zones of heat pipe heat exchanger were measured on the test platform of small heat pipe air preheater The resistance of the flue gas side and the air side, the temperature and the inclination angle of the cold end of the single high, medium and low temperature heat pipe were measured. The heat transfer performance and resistance characteristics of the low flow resistance heat pipe are verified, which provides a reference for the design and modification of the heat pipe air preheater in power plant.

关 键 词：空气预热器 热管 试验平台 低流阻 换热性能 

分 类 号：TK172[动力工程及工程热物理—热能工程]