冀南地区双U型地埋管换热器热响应试验研究  

Experimental study on thermal response of double U-type buried tube heat exchanger in southern Hebei Province

作　　者：李朋朋 韩乐 李永 罗景辉 张晓飞 张昌建[3] LI Pengpeng;HAN Le;LI Yong;LUO Jinghui;ZHANG Xiaofei;ZHANG Changjian(Hebei Construction Science Academy Co.,Ltd.,Shijiazhuang 050027,China;Qinhuangdao green building development center,Qinhuangdao 066000,China;Hebei University of Engineering,Handan 056000,China;Hebei Jianyan Engineering Technology Co.,Ltd.,Shijiazhuang 050027,China)

机构地区：[1]河北省建筑科学研究院有限公司,河北石家庄050027 [2]秦皇岛市绿色建筑发展中心,河北秦皇岛066000 [3]河北工程大学,河北邯郸056000 [4]河北建研工程技术有限公司,河北石家庄050027

出　　处：《区域供热》2024年第6期60-66,144,共8页District Heating

基　　金：经济型低碳新民居改造技术研究与示范(202205B003);河北省重点研发计划项目“太阳能,地热能、相变能多能互补(电、热、冷系统)关键技术与装备研发与示范”(236Z4310G)。

摘　　要：通过对邯郸市磁县某产业园内的双U型地埋管换热器进行现场热响应试验,分析该区域地源热泵系统的换热性能。试验在埋管深度为120 m的条件下进行,结果显示,该区域岩土的原始平均温度为18.01℃,平均导热系数为2.098 W/(m·K)。基于试验数据,对地埋管换热器的换热能力进行了设计工况下的折算分析:在夏季工况下(供回水平均温度为32.5℃),单位延米的排热量参考值为63.065 W/m;在冬季工况下(供回水平均温度为6℃),单位延米的取热量参考值为52.24 W/m。研究结果可为邯郸市磁县地区地源热泵系统的合理设计提供参考。The field thermal response test of a double-U-type buried tube heat exchanger in an industrial park in Cixian County,Handan City is carried out to analyze the heat transfer performance of the ground source heat pump system in this area.The test is carried out at a depth of 120 m.The results show that the original average temperature of the soil in this area is 18.01℃,and the average thermal conductivity is 2.098 W/(m·K).Based on the test data,the conversion analysis of the heat transfer capacity of the buried tube heat exchanger under the design working condition is carried out:under the summer working condition(the average temperature of supply and return water is 32.5℃),the reference value of heat emission per unit of a meter is 63.065 W/m;Under winter conditions(the average temperature of water supply and return is 6℃),the reference value of heat extraction per unit extension meter is 52.24 W/m.The research results could provide reference for the reasonable design of ground source heat pump system in Cixian county of Handan City.

关 键 词：土壤换热器 双U型地埋管 热响应试验 地源热泵 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]