夏季土壤-空气换热器新风预冷换热性能研究  

Study on Heat Transfer Performance of Fresh Air Precooling of Soil-air Heat Exchanger in Summer

作　　者：邱大学 陈胜 曾理 赵文静 王亮[2] Qiu Daxue;Chen Sheng;Zeng Li;Zhao Wenjing;Wang Liang(China Huaxi Enterprises Company Limited,12th Construction Engineering Company,Chengdu,610081;Southwest University of Science and Technology,Mianyang,621010)

机构地区：[1]中国华西企业股份有限公司第十二建筑工程公司,成都610081 [2]西南科技大学土木工程与建筑学院,绵阳621010

出　　处：《制冷与空调(四川)》2025年第2期233-238,共6页Refrigeration and Air Conditioning

摘　　要：夏季利用土壤-空气换热器新风预冷能有效解决新风负荷大等问题,构建了土壤空气换热器理论模型,用于计算地埋管出口空气温度,通过正交模拟分析了地埋管管径、长度以及新风量对地埋管出口空气温度的影响。结果表明:地埋管管径极差值最大,可达12.43,是地埋管是土壤空气换热器的主要影响因素,地埋管长度和新风量为次要因素;当新风量增大时,出口温度随之上升;随着地埋管的管径与长度增大,出口温度逐渐减小;在工程设计中,建议控制管径在0.2~1.0m、管道长度在10.0~20.0m。The fresh air precooling of soil-air heat exchanger can effectively solve the problem of large fresh air load in summer.In this paper,a theoretical model of soil air heat exchanger is constructed to calculate the outlet air temperature of buried pipe.The influence of pipe diameter,length and fresh air volume on the outlet air temperature of buried pipe is analyzed by orthogonal simulation.The results show that the diameter range of the buried pipe is the largest,up to 12.43 m,which is the main influencing factor of the soil air heat exchanger,and the length of the buried pipe and the amount of fresh air are the secondary factors.When the fresh air volume increases,the outlet temperature increases;with the increase of the diameter and length of the buried pipe,the outlet temperature decreases gradually.In the engineering design,it is recommended to control the diameter of the pipe in 0.2~1.0 m and the length of the pipe in 10.0~20.0 m.

关 键 词：土壤空气换热器 地埋管 新风预处理 节能 

分 类 号：TU834.1[建筑科学—供热、供燃气、通风及空调工程]