Medium-deep strata and superficial strata geothermal energy combined heat supply and superficial strata geothermal energy heat supplement system

Abstract

The invention provides a medium-deep strata and superficial strata geothermal energy combined heat supply and superficial strata geothermal energy heat supplement system. The system comprises internalswitching heat pump units, user side circulating pumps, ground source side circulating pumps, medium-deep strata geothermal well heat exchange systems and superficial strata buried pipe heat exchangesystems. The system has the advantages of being high in geothermal energy utilization rate, low in engineering investment and operation cost and high in heat pump unit heat supply system efficiency.Meanwhile, the technology is simple, the process of an energy supply system is clear, and efficient combination of the medium-deep strata geothermal energy and the superficial strata geothermal energyis achieved; in the whole geothermal energy utilization process, the heat is obtained, the water is not obtained, interference-free clean utilization of the geothermal energy is achieved, and zero emission of pollutants is achieved in the heat and cold supply process; and the ratio of the medium-deep strata geothermal energy to the superficial strata geothermal energy is allocated according to the user load demand and the actual project situations, and the problem that due to the fact that only the medium-deep strata geothermal energy is used for achieving heat supply, the construction cost is excessively high is effectively solved.

Description

technical field [0001] The invention belongs to the technical field of geothermal development and utilization, and in particular relates to a combined heating of mid-deep and shallow geothermal energy and superficial geothermal energy supplementary heating for mid-deep and shallow geothermal energy. system. Background technique [0002] Geothermal energy is a green, clean and renewable clean energy with the advantages of wide distribution and large reserves. According to the buried depth and temperature of geothermal energy, geothermal energy can be divided into shallow geothermal energy and medium-deep geothermal energy. [0003] Shallow geothermal energy refers to the heat energy contained in rock and soil, groundwater and surface water within a depth range of less than 200 meters below the surface. It is produced by the joint action of energy conduction inside the earth and solar radiation, but is mainly affected by solar radiation. And the temperature changes little wit...

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Problems solved by technology

[0006] In view of the description of the above background technology, the patent of the present invention provides a combined heating system of mid-deep and shallow geothermal energy and shallow geothermal energy supplementary heating, which mainly solves the problem of joint heating of mid-deep and shallow geothermal energy and the utilization of transitional seasons Technical Problems of Supplementary Heat from Deep Geothermal Energy to Shallow Geothermal Energy

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