防护工程地埋管周围土壤温度场热扩散研究  

Research on thermal diffusion of soil temperature field around buried pipes in protective engineering

作　　者：茅靳丰[1] 陈尚沅[1] 李永[1] 李伟华[1] 

机构地区：[1]解放军理工大学,南京210007

出　　处：《防护工程》2013年第3期61-64,共4页Protective Engineering

摘　　要：为探讨地源热泵系统在防护工程中的适用性，针对垂直埋管热堆积问题，结合防护工程负荷特点和时间特性建立传热模型，对热泵运行期和停机期地下土壤的温度场进行了研究，并对地温变化规律和恢复特性进行分析。结果表明：垂直地埋管在工程使用期能与地下土壤有效换热，在工程维护期能较好地恢复热平衡；防护工程间歇运行的特点有利于消除热堆积的不良影响。In order to explore the applicability of GSHP （ ground-source heat pump） system in protective engineering, based on load and time characteristics of protective engineering, according to the phenomenon of heat accumulation around vertical buried pipes, a heat transfer model was established, the underground soil temperature field in operating period and closing period was discussed, and the variation and restorative characteristics of soil was ana- lyzed. The results show that vertical buried pipes can effectively exchange the energy with soil in operating period and recover quickly in closing period, the characteristics of intermittent operation in protective engineering is benefi- cial to eliminate the undesirable influence of heat accumulation.

关 键 词：地源热泵 防护工程 温度场 

分 类 号：TU831.4[建筑科学—供热、供燃气、通风及空调工程]