geothermal heating system

Abstract

The disclosure relates to a geothermal heating system and belongs to the field of geothermal heating. The geothermal heating system includes block heating stations and heat exchange central stations. The block heating station has a first hot water supply inlet and a first hot water supply outlet connected to each other, and a first hot return water outlet and a first hot return water inlet connected to each other. The heat pump of the block heating station has a first input port and a first output port connected to each other, and a second input port and a second output port connected to each other, the first input port and the second input port are respectively connected to the first heat return water The inlet is connected, the first output port is connected with the first hot water supply inlet, and the second output port is connected with the first hot return water outlet. The heat pump is configured to lower the temperature of the hot return water output from the second outlet and increase the temperature of the hot supply water output from the first outlet. The heat exchange central station has a second hot return water inlet and a second hot supply water outlet, the second hot return water inlet communicates with the first hot return water outlet, and the second hot supply water outlet communicates with the first hot supply water inlet.

Description

technical field [0001] The disclosure relates to the field of geothermal heating, in particular to a geothermal heating system. Background technique [0002] A geothermal heating system refers to a heating system that uses geothermal heat as the main heat source. The block geothermal heating system is a geothermal heating system used to supply heat to residents. The block geothermal heating system includes a heat exchange center station and a block heating station. [0003] The block heating station has a first hot water supply inlet, a first hot return water outlet, a first hot return water inlet and a first hot water supply outlet, the first hot water supply inlet communicates with the first hot water supply outlet, and the first hot return water outlet Connected with the first hot return water inlet. The heat exchange central station includes geothermal production wells, recharge wells and heat exchangers. The heat exchangers include geothermal water inlets, geothermal ...

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Problems solved by technology

[0004] In related technologies, the temperature difference between the geothermal water output from the geothermal production well and the geothermal water input into the reinjection well is small, and the heat transferred from the geothermal water to the hot supply water in the heat exchanger is less, that is, geothermal energy Low utilization, resulting in insufficient heating of the block

In order to ensure sufficient heat supply for the neighborhood, more production wells and recharge wells need to be drilled to generate more geothermal water for heating. However, the high investment in drilling wells leads to a decrease in the rate of return of the geothermal heating system

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