The buried pipe ground source heat pump system is also known as the underground coupled heat pump system or the soil heat exchanger ground source heat pump, including a soil coupled geothermal exchanger. It is either installed horizontally in a ditch or vertically installed in a shaft in a U shaped tube. The intermediate medium is used as a heat carrier to make the intermediate medium circulate in the closed loop of the soil coupled geothermal exchanger, so as to achieve the purpose of heat exchange with the earth's soil.
1. Horizontal buried pipe ground source heat pump system.
A relatively simple way is that when the indoor load is relatively small, the length of the soil heat exchanger is relatively short, and the single loop pipe can be directly buried into the ground with the excavation of earthwork.
2. Ground water heat pump system
It is usually called the deep well recharge water source heat pump system. Through the construction of pumping wells group, the groundwater is pumped out, through two heat exchange or directly sent to the water source heat pump unit. After extracting heat or releasing heat, it is pumped back to the ground by the well group. Both deep and underground water are good low-level heat sources for heat pumps. Groundwater is located in a deeper area. Due to the heat insulation function of the stratum, its temperature fluctuates very little with the seasonal temperature. Especially, the water temperature of the deep well is basically unchanged all the year round, which is very favorable for the operation of the heat pump.
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