用于沼气系统的热管式热水加热器设计  

Design of Hot Water Heater with Heat Pipe for Biogas System

作　　者：夏吉庆[1] 王宁宁[1] 王晓东[1] 刘环宇[1] 施灿璨[1] 王忠江[1] 

机构地区：[1]东北农业大学工程学院,哈尔滨150030

出　　处：《农业机械学报》2014年第5期160-165,共6页Transactions of the Chinese Society for Agricultural Machinery

基　　金：'十二五'国家科技支撑计划资助项目(2011BAD15B04);黑龙江省青年科学基金资助项目(QC2011C083);东北农业大学人才基金资助项目(2009RC49)

摘　　要：为了解决北方冬季沼气厌氧发酵温度不稳定的瓶颈问题，设计了一种用于沼气系统的燃气加热增温装置，即配套一种燃气加热的热管式热水加热器。选择热管加热端距离燃气灶孔的高度、燃气流量、平均水温作为影响因素，以热管式热水加热器热效率作为目标进行了试验分析，结果表明：当热管加热端距离燃气灶孔的高度为21.5cm，液化石油气流量为1.01kg/h，平均水温为35～45℃时，其热效率达到最高，最高值为63.47%。Fermentation temperature is instable in the northern winter which is the bottleneck of biogas system. In order to solve this problem, a heating equipment which was a hot water heater with heat pipe with gas heating used for biogas system was developed. The distance of the heating side with heat pipe from gas stove hole, flow rate of the burning gas and average water temperature were chosen as experimental parameters. The conditions of this processing technology were optimized by the index of thermal efficiency of hot heater. The result showed that the thermal efficiency of the hot water heater reached the maximum value of 63.47% when the distance of the heating side with heat pipe from gas stove hole was 21.5cm, the flow rate of the liquefied petroleum gas was 1.01kg/h and the average water temperature was 35-45℃.

关 键 词：沼气系统 热管 热水加热器 热效率 

分 类 号：S216.4[农业科学—农业机械化工程]