Middle-deep layer geothermal energy and solar energy coupled zero-emission heat supply system

Abstract

The invention relates to a medium-deep layer geothermal energy and solar energy coupled zero-emission heat supply system. The technical problem that in the prior art, design is not reasonable enough is solved. The system comprises a power generation unit, an energy storage unit and an energy consumption unit, the power generation unit is provided with a middle-deep layer buried pipe heat exchange device, a solar photo-thermal heat collection device and a photovoltaic power generation system, the energy storage unit is provided with an electric heat storage boiler, the middle-deep layer buried pipe heat exchange device is connected with the electric heat storage boiler and / or the energy consumption unit through a middle-deep layer geothermal heat pump, the solar photo-thermal heat collection device is connected with the electric heat storage boiler and / or the energy consumption unit, the photovoltaic power generation system is connected with electricity storage equipment, and the electricity storage equipment is connected with the electric heat storage boiler, the middle-deep layer geothermal heat pump and the energy consumption unit. The system has the advantages that a composite efficient heat supply and heat storage system is achieved, and zero emission of the whole set of northern centralized heat supply system is achieved through ultralow-energy-consumption centralized heat supply and obtaining of clean electric power capable of being generated at the same time.

Description

Technical field [0001] The present invention belongs to the technical field of renewable energy devices, and in particular to a zero-discharge heating system having a medium deep layer thermal energy coupling solar energy. Background technique [0002] Medium-depth floor heat closure cycle source heat pump technology The water supply temperature required to heating the building heating is stable to heating to buildings. The heat exchange technology is based on the principle of heat-free water, energy saving, and reliable. [0003] Solar collector technology mainly uses direct radiation and scattering radiation in solar radiation to heat transfer into medium low temperature hot water, collect and transmit to the heating terminal, most of which uses a hot water for community residents or Heating non-concentrated collector technology. Solar photovoltaic power generation technology is a technology that directly converts the light of the sun into electrical energy. However, the relati...

AI Technical Summary

Problems solved by technology

[0006] The above scheme only uses solar energy as a supplementary heat source for heating, and cannot realize the organic combination of heat supply and heat storage. The medium-deep underground space is not used as heat storage space, so as to realize the efficient heating of medium-deep geothermal heat, and there is no cascade utilization of geothermal energy, combined with building maintenance structure for cascade heat utilization

Images