Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Backfill material and backfill method for vertical spiral buried pipe ground source heat pump
The invention discloses a backfill material and a backfill method for a vertical spiral buried pipe ground source heat pump, the backfill material comprises a backfill material I and a backfill material II which are stirred and mixed together, the backfill material I comprises the following raw materials by weight: 4-6% of sand and 94-96% of bentonite; the backfill material II comprises the following raw materials in percentage by weight: 8-10% of paraffin and 90-92% of expanded graphite; the backfilling method comprises the steps that firstly, a PE pipe with the closed bottom end and the open top end is used for wrapping the spiral pipe, so that a gap is formed between the PE pipe and the spiral pipe, then the two pipes with the gap are placed into a drilling well, finally, an air compressor is used for blowing backfilling materials into the gap, and therefore the complete buried pipe is formed. The ground heat exchanger has high heat conductivity and high heat storage performance, and transmitted heat can be stored in the form of phase change latent heat, so that the heat exchange efficiency of the ground heat exchanger is improved.
本发明公开了一种用于垂直螺旋埋管地源热泵的回填材料及回填方法，包括搅拌混合在一起的回填材料一和回填材料二，回填材料一包括以下比重的原料：沙4％‑6％、膨润土94％‑96％；回填材料二包括以下比重的原料：石蜡8％‑10％、膨胀石墨90％‑92％；该回填方法为：先用底端封闭、顶端敞开的PE管包裹螺旋管，从而在PE管和螺旋管之间形成空隙，再将存在空隙的两管放进钻井内，最后利用空压机将回填材料吹入空隙中，从而形成完整的地埋管。本发明具有较高的导热性和较强的蓄热性，能够将传输的热量以相变潜热的形式储存下来，以提高地埋管换热器的换热效率。
Backfill material and backfill method for vertical spiral buried pipe ground source heat pump
The invention discloses a backfill material and a backfill method for a vertical spiral buried pipe ground source heat pump, the backfill material comprises a backfill material I and a backfill material II which are stirred and mixed together, the backfill material I comprises the following raw materials by weight: 4-6% of sand and 94-96% of bentonite; the backfill material II comprises the following raw materials in percentage by weight: 8-10% of paraffin and 90-92% of expanded graphite; the backfilling method comprises the steps that firstly, a PE pipe with the closed bottom end and the open top end is used for wrapping the spiral pipe, so that a gap is formed between the PE pipe and the spiral pipe, then the two pipes with the gap are placed into a drilling well, finally, an air compressor is used for blowing backfilling materials into the gap, and therefore the complete buried pipe is formed. The ground heat exchanger has high heat conductivity and high heat storage performance, and transmitted heat can be stored in the form of phase change latent heat, so that the heat exchange efficiency of the ground heat exchanger is improved.
本发明公开了一种用于垂直螺旋埋管地源热泵的回填材料及回填方法，包括搅拌混合在一起的回填材料一和回填材料二，回填材料一包括以下比重的原料：沙4％‑6％、膨润土94％‑96％；回填材料二包括以下比重的原料：石蜡8％‑10％、膨胀石墨90％‑92％；该回填方法为：先用底端封闭、顶端敞开的PE管包裹螺旋管，从而在PE管和螺旋管之间形成空隙，再将存在空隙的两管放进钻井内，最后利用空压机将回填材料吹入空隙中，从而形成完整的地埋管。本发明具有较高的导热性和较强的蓄热性，能够将传输的热量以相变潜热的形式储存下来，以提高地埋管换热器的换热效率。
Backfill material and backfill method for vertical spiral buried pipe ground source heat pump
一种用于垂直螺旋埋管地源热泵的回填材料及回填方法
WANG YONG (Autor:in) / ZHOU ZHUO (Autor:in) / GUO JINCHENG (Autor:in)
21.03.2023
Patent
Elektronische Ressource
Chinesisch
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