4/6/2025, 12:00:02 PM 星期日
地源热泵系统中钻孔回填材料研究进展
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作者单位:

成都理工大学环境与土木工程学院,四川 成都 610059

中图分类号:

TK523;P634

基金项目:

国家重点实验室基金“青藏高原地热能钻采高温护壁堵漏材料的制备、性能与机理”(编号:SKLGP2019Z006)


Research progress on borehole backfill materials in ground source heat pump systems
Author:
Affiliation:

School of Environment and Civil Engineering, Chengdu University of Technology, Chengdu Sichuan 610059, China

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    摘要:

    当今社会快速发展,能源需求与环境问题逐渐加剧,利用地源热泵系统采取浅层地温这一清洁能源,可以实现节能减排与充分利用资源的目标。而在地源热泵技术中影响地温能开采效率的重要因素即为回填材料的研发与应用。该文对地源热泵技术中回填材料的力学性能、导热性能和施工性能及其当前存在的问题及发展趋势进行综述,指出了当前回填材料的导热性能的研发虽能使其达到较高的导热效率,但其往往会影响材料的力学强度等物理特性,增加其施工难度,而相变材料可能是解决回填材料性能缺陷的关键。此外,随着科技的发展,将数值模拟与试验相结合,可以对理论创新与工程效益起到很大的提升作用。

    Abstract:

    With the rapid development of modern society, energy demand and environmental problems are gradually aggravating, ground source heat pump systems can be used to extract shallow ground temperature-a clean energy source to achieve the goals of energy conservation, emission reduction and full utilization of resources. An important factor affecting the efficiency of geothermal energy extraction in ground source heat pump technology is the development and application of backfill materials. This article reviews the thermal conductivity, mechanical properties and construction performance of backfill materials in ground source heat pump technology, as well as their current problems and development trends. It points out that the current research and development of thermal conductivity of backfill materials can achieve higher thermal conduction efficiency, but it often affects the mechanical strength and other physical properties of the materials, and increases its construction difficulty. Phase change materials may be the key to solving the performance defects of backfill materials; in addition, with the development of science and technology, the combination of numerical simulation and experimentation can greatly improve theoretical innovation and engineering benefits.

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引用本文

张玟,郝斌尧,王胜,等.地源热泵系统中钻孔回填材料研究进展[J].钻探工程,2021,48(8):96-102.
ZHANG Wen, HAO Binyao, WANG Sheng, et al. Research progress on borehole backfill materials in ground source heat pump systems[J]. Drilling Engineering, 2021,48(8):96-102.

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  • 收稿日期:2020-09-03
  • 最后修改日期:2021-04-12
  • 录用日期:2021-04-20
  • 在线发布日期: 2021-08-13
  • 出版日期: 2021-08-10
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