GEOTHERMAL HEAT EXCHANGE SEGMENT, GEOTHERMAL HEAT EXCHANGER AND ITS ASSEMBLING METHOD

To efficiently use geothermal heat by efficiently heat-exchanging the geothermal heat.SOLUTION: In a geothermal heat exchanger 1, segment rings 1A are formed by connecting a main body segment 14, a connecting segment 15 in which three pieces of piping 3 are arranged in a horizontal direction in parallel with one another, and a connecting segment 16 fit between tapered end faces of the main body segment 14. A heat medium for exchanging heat with geothermal heat circulates in one connected piping 3. End parts of the piping 3 are connected to each other via a joint. The segment rings 1A are laminated in a vertical direction in a plurality of stages, and three pieces of the piping 3 are continuously connected to one another. The geothermal heat exchanger 1 is installed in a region surrounded by a stratum which is high in the geothermal heat in a landslide suppression pile. A withdrawal port 3a and a return port 3b of the piping 3 in the geothermal heat exchanger 1 are heat-exchanged with a second condenser by making the heat medium circulate in a heat source side circulation path which is connected to a first condenser of the geothermal heat exchanger.SELECTED DRAWING: Figure 4 【課題】地熱を効率よく熱交換して効率的に利用できる。【解決手段】地熱交換装置１は、内部に熱交換用の熱媒を流通させる３本の配管３が水平方向に平行に配設された主体セグメント１４と、３本の配管３が水平方向に平行に配設された接続セグメント１５と、主体セグメント１４のテーパ状端面の間に嵌合された連結セグメント１６とを連結してセグメントリング１Ａを形成した。１本に接続された各配管３内を地熱と熱交換する熱媒が流通する。各配管３の端部同士をジョイントを介して互いに連結した。セグメントリング１Ａを複数段上下方向に積層して各配管３を互いに連結して連続させる。地熱交換装置１は地すべり抑止杭における地中熱の高い地層に囲まれた領域に設置した。地熱交換装置１内の配管３の取り出し口３ａ、戻し口３ｂを地熱交換器の第一凝結器に接続した熱源側循環路内に熱媒を循環させて第二凝結器と熱交換する。【選択図】図４