Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Layered backfilling method for phase change backfilling material of ground source heat pump system and application of layered backfilling method
The invention relates to the technical field of medium-deep layer geothermal energy development, in particular to a layered backfilling method for a phase change backfilling material of a ground source heat pump system and application of the layered backfilling method. The method comprises the following steps that a drilled well is divided into a shallow layer section and a medium-deep layer section according to the depth of the drilled well, and the shallow layer is backfilled with a heat insulation backfilling material; and the middle-deep layer is divided into temperature layers according to the temperature range, corresponding phase change backfill materials are selected according to the temperature range of each temperature layer, and the phase change backfill materials are backfilled layer by layer. By adopting the layered backfilling scheme of the phase-change backfilling material, the phase-change temperature is determined according to the formation temperature, and the phase-change latent heat effect of the phase-change material can be utilized by all the heat exchange sections of the geothermal well. Based on the stratum capable of exerting the phase change effect, compared with a single-phase-change-temperature phase change backfill material backfill scheme, the phase change backfill material layered backfill scheme can effectively improve the geothermal energy utilization efficiency.
本发明涉及中深层地热能开发技术领域，具体是一种地源热泵系统相变回填材料的分层回填方法及其应用，方法包括如下步骤：根据钻井深度，将钻井分为浅层段和中深层段，浅层使用隔热回填材料回填；中深层按照温度范围划分温度层，根据各温度层的温度范围选择对应的相变回填材料，分层回填相变回填材料。本发明通过采用相变回填材料分层回填方案，根据地层温度确定相变温度，可使地热井全换热段均能利用相变材料的相变潜热效果。基于可发挥相变作用的地层进行推断，相较于单一相变温度相变回填材料回填方案，相变回填材料分层回填方案能使地热能利用效率得到有效提高。
Layered backfilling method for phase change backfilling material of ground source heat pump system and application of layered backfilling method
The invention relates to the technical field of medium-deep layer geothermal energy development, in particular to a layered backfilling method for a phase change backfilling material of a ground source heat pump system and application of the layered backfilling method. The method comprises the following steps that a drilled well is divided into a shallow layer section and a medium-deep layer section according to the depth of the drilled well, and the shallow layer is backfilled with a heat insulation backfilling material; and the middle-deep layer is divided into temperature layers according to the temperature range, corresponding phase change backfill materials are selected according to the temperature range of each temperature layer, and the phase change backfill materials are backfilled layer by layer. By adopting the layered backfilling scheme of the phase-change backfilling material, the phase-change temperature is determined according to the formation temperature, and the phase-change latent heat effect of the phase-change material can be utilized by all the heat exchange sections of the geothermal well. Based on the stratum capable of exerting the phase change effect, compared with a single-phase-change-temperature phase change backfill material backfill scheme, the phase change backfill material layered backfill scheme can effectively improve the geothermal energy utilization efficiency.
本发明涉及中深层地热能开发技术领域，具体是一种地源热泵系统相变回填材料的分层回填方法及其应用，方法包括如下步骤：根据钻井深度，将钻井分为浅层段和中深层段，浅层使用隔热回填材料回填；中深层按照温度范围划分温度层，根据各温度层的温度范围选择对应的相变回填材料，分层回填相变回填材料。本发明通过采用相变回填材料分层回填方案，根据地层温度确定相变温度，可使地热井全换热段均能利用相变材料的相变潜热效果。基于可发挥相变作用的地层进行推断，相较于单一相变温度相变回填材料回填方案，相变回填材料分层回填方案能使地热能利用效率得到有效提高。
Layered backfilling method for phase change backfilling material of ground source heat pump system and application of layered backfilling method
一种地源热泵系统相变回填材料的分层回填方法及其应用
ZHANG YAN (Autor:in) / JIANG YU (Autor:in) / CHEN HAO (Autor:in) / WANG BINGCHAO (Autor:in) / ZHAO JUNWEI (Autor:in) / FU SHUFENG (Autor:in)
29.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
F25B
Kältemaschinen, Kälteanlagen oder Kälteverfahren
,
REFRIGERATION MACHINES, PLANTS, OR SYSTEMS
/
C04B
Kalk
,
LIME
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
/
F24T
GEOTHERMAL COLLECTORS
,
Erdwärmekollektoren
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