Terrestrial heat supply system

Abstract

The invention relates to a terrestrial heat supply system, and belongs to the field of terrestrial heat supply. The terrestrial heat supply system comprises a block heat supply station and a heat exchange center station, wherein the block heat supply station is provided with a first hot supply water inlet and a first hot supply water outlet which are communicated with each other, and a first hot water return outlet and a first hot water return inlet which are communicated with each other; a heat pump of the block heat supply station is provided with a first input port and a first output port which are communicated with each other, and a second input port and a second output port which are communicated with each other; the first input port and the second input port are respectively communicated with the first hot return water inlet; the first output port is communicated with the first hot supply water inlet; the second output port is communicated with the first hot return water outlet;the heat pump is configured to reduce a temperature of the hot return water output from the second output port and increase a temperature of the hot supply water output from the first output port; andthe heat exchange center station is provided with a second hot return water inlet and a second hot supply water outlet; the second hot return water inlet is communicated with the first hot return water outlet; and the second hot supply water outlet is communicated 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 ...

AI Technical Summary

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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