Cross-seasonal heat storage composite heating system based on confined aquifer

Abstract

The invention provides a cross-seasonal heat storage composite heating system based on a confined aquifer. A cross-seasonal heat storage, heating and heat supply technology is combined with an aquiferrecharge and energy storage technology, an original aquifer which cannot be continuously exploited to obtain underground water due to the fact that the underground water level is reduced is used as an energy storage device, and an original geothermal well is rebuilt into a heat storage well and a heat collection well; water is heated by energy such as solar energy in a non-heating season and thenis recharged into the heat storage well, and heat preservation is carried out as the characteristics of the aquifer, specifically slow flow rate of and small heat loss; and in a heating season, the stored hot water is extracted from the aquifer through the heat collection well and then conveyed to heating users through heat supply units. The cross-seasonal heat storage composite heating system based on the confined aquifer is large in energy capacity, low in cost, environment-friendly and pollution-free, and good in reliability and stability, and can bring remarkable economic and social benefits.

Description

technical field [0001] The invention belongs to the technical field of heating equipment, in particular to a composite heating system based on a pressurized aquifer for cross-season heat storage. Background technique [0002] In recent years, due to the demand for environmental protection, heating energy in many places in northern my country has embarked on the road of transformation from coal to natural gas. However, due to problems such as time constraints, heavy tasks, and insufficient domestic natural gas storage, heating energy has appeared in many places. Serious shortage, the phenomenon that residents suffer from heat cut-offs. In order to solve the shortage of heating and non-renewable energy in winter, it is urgent to find mature new renewable clean energy, which includes the collection, storage and utilization of new energy, which is a complete and rigorous system. [0003] Now generally popular small-scale domestic solar water heater system and other similar solar...

AI Technical Summary

Problems solved by technology

In China, especially in the northern regions, it is very common to extract underground hot water as a heating source. It has a mining history of 40 to 50 years. However, due to over-exploitation, the groundwater level in some areas has dropped, and many cavities of different sizes have appeared in the ground. , leading to different degrees of ground subsidence, which poses a great safety hazard, and may even lead to large-scale collapse of regions and even cities

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