Combined heat supply system capable of utilizing clean energy in severe cold area

Abstract

A combined heat supply system capable of utilizing clean energy in a severe cold area belongs to a clean energy utilization technology. The combined heat supply system capable of utilizing the clean energy in the severe cold area comprises a geothermal energy heat source system; an air energy heat source system communicates with a geothermal medium output pipeline and a geothermal medium input pipeline correspondingly through an air medium output pipeline and an air medium input pipeline; air medium switch control valves are assembled on the air medium output pipeline and the air medium input pipeline correspondingly to form the air energy heat source system; a circuit A connects an automatic control cabinet with an expanding valve and a compressor; a circuit B connects the automatic control cabinet with the air medium switch control valves and a geothermal medium switch control valve; and a temperature sensor is connected with the automatic control cabinet. The combined heat supply system comprises the geothermal energy heat source system, the air energy heat source system and an electric heating system, is reasonable and novel in structure and high in automation degree, has a good heat supply effect when being used in the severe cold area, and guarantees the continuity and the reliability of geothermal energy resources.

Description

technical field [0001] The invention originates from the technology of clean energy utilization, and mainly relates to a heating system combining clean energy using geothermal energy and air energy in severe cold regions. Background technique [0002] Clean energy includes air energy, shallow geothermal energy and electric heat energy. [0003] Air energy is a widely existing, free to use, inexhaustible clean energy. It has high thermal efficiency in a certain temperature environment, but it is not suitable for the temperature environment below minus 20 degrees due to poor performance ratio. application. In severe cold regions, there are about 60 days of each winter when the temperature is below minus 20 degrees Celsius, and sometimes it is even more than minus 30 degrees Celsius. Therefore, in severe cold areas, such as the Harbin area in northern my country, there is no technology to utilize air energy for heating in winter. [0004] Shallow thermal energy is a kind of ...

AI Technical Summary

Problems solved by technology

And if the thermal compensation is not done well, the long-term mining of shallow geothermal energy will cause local freezing of the heat extraction area, making it unsustainable for mining and application

[0005] Therefore, the single use of air energy or shallow geothermal energy in severe cold areas cannot undertake and complete the heating operation in severe cold areas, which restricts the scientific and rational application of clean energy in severe cold areas

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