| 地埋管换热器钻孔长度计算方法研究 |
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| 引用本文： | 魏新华,汤昌福,俞显忠.地埋管换热器钻孔长度计算方法研究[J].安徽地质,2016,26(1):57-60. |
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| 作者姓名： | 魏新华 汤昌福 俞显忠 |
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| 作者单位： | 安徽省煤田地质局勘查研究院，安徽合肥.230088;合肥市浅层地热能工程技术研究中心，安徽合肥.230088;安徽省煤田地质局勘查研究院，安徽合肥.230088;合肥市浅层地热能工程技术研究中心，安徽合肥.230088;安徽省煤田地质局勘查研究院，安徽合肥.230088;合肥市浅层地热能工程技术研究中心，安徽合肥.230088 |
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| 基金项目： | 住房城乡建设部软科学项目(2015-R1-012)，安徽省住房城乡建设科学技术计划项目(2015YF-06 |
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| 摘 要： | 地埋管换热器钻孔长度计算是土壤源热泵系统设计的核心。为规范地埋管换热器钻孔长度计算,从《地源热泵系统工程技术规范》基本要求出发,以合肥市某土壤源热泵工程为例,进行了地埋管换热器钻孔长度计算和校核模拟计算。研究表明,热干扰对地埋管换热器钻孔长度有较大的影响,不考虑热干扰影响的钻孔长度计算结果偏小;由于热堆积的影响,地埋管换热器流体平均出口温度呈现逐年上升趋势。校核模拟计算结果表明地埋管换热器钻孔计算长度能够满足规范的要求。
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| 关 键 词： | 地埋管换热器 钻孔长度 模拟 |
A Study on the method of SizinG the borehole lenGth for the Ground heAt exChAnGerS |
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| Wei xin-hua,tAnG Chang-fu,yu xian-zhong.A Study on the method of SizinG the borehole lenGth for the Ground heAt exChAnGerS[J].Geology of Anhui,2016,26(1):57-60. |
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| Authors: | Wei xin-hua tAnG Chang-fu yu xian-zhong |
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| Abstract: | Sizing the borehole length of ground heat exchangers (GHEs) is the key of designing for the ground source heat pump system. To regulate the method of sizing the borehole length for GHEs from the "Technical code for ground-source heat pump system” requirement, borehole length calculation and checking calculation and simulation are presented through a case study of a ground source heat pump project in Hefei. Results indicate that the thermal interference has a great influence on the borehole length of GHEs. Without considering the thermal interference the borehole length will be smaller. Due to the effect of the heat accumulation underground, the average fluid outlet temperature of ground heat exchanger will increase gradually year by year. Simulation verification results show that the borehole length of GHE can meet the requirement of the technical code. |
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| Keywords: | ground heat exchangers borehole length simulation |
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