A combined cooling, heating and power generation high-pressure rotary spraying core-inserted composite pile system and its construction method

Abstract

The invention discloses a high-pressure rotary spray core-insertion combined pile system for combined cooling, heating and power generation, including a high-pressure rotary spray core-plug combined pile, a heat transfer tube, an air-conditioning system, and a thermoelectric power generation system; the air-conditioning system includes heat exchange equipment, The heat transfer tube first exchanges heat with the soil, and then connects the upper heat exchange equipment to adjust the indoor temperature in the building; the thermoelectric power generation system includes the semiconductor thermoelectric power generation system I and the semiconductor thermoelectric power generation system II, and the power obtained is used for the upper electrical equipment. electricity supply. In addition to providing the function of supporting the load of the upper building and using the shallow geothermal energy to cool or heat the upper building, this system also uses the temperature difference between the liquid in the heat exchange tube and the soil to generate electricity to supply the upper building with electricity. The heat exchange efficiency between the heat exchange tube and the soil; effectively realized the composite utilization of the high-pressure rotary spray core composite pile in three aspects of mechanics, heat and electricity, and realized the multi-objective effective utilization of shallow geothermal energy on demand and at different times .

Description

technical field [0001] The invention relates to a technology for utilization of shallow geothermal energy, which is mainly applicable to technical fields such as building pile foundations, and in particular relates to a high-pressure rotary-spray core-plug combined pile system for combined cooling, heating and power generation and a construction method thereof. Background technique [0002] Shallow geothermal energy, also known as shallow geothermal energy, belongs to low-grade renewable clean energy, and is one of the most valuable development and utilization thermal energy resources in the earth's interior under the current technical and economic conditions. At present, in the development and utilization of shallow geothermal energy, it is mainly to directly use the characteristics of the constant temperature of the shallow soil all year round, and use the heat pump cycle to achieve the effect of heating the ground buildings in winter or cooling in summer. Ground source he...

AI Technical Summary

Problems solved by technology

[0038] Purpose of the invention: In order to overcome the above-mentioned deficiencies and defects, solve (1) the problem of low heat exchange efficiency in shallow geothermal energy utilization caused by energy piles in the utilization of shallow geothermal energy due to the limitation of the total amount of shallow geothermal energy in space and time , (2) In the existing shallow geothermal temperature difference power generation schemes, the construction cost of drilling and buried pipes is high, the land area or underground space is large, and the temperature difference between the soil itself and the medium is not used for direct power generation; a new method is proposed The combined cooling, heating and power generation high-pressure rotary spraying core-inserted pile system and its construction method directly bury the thermoelectric power generation device and the ground source heat pump device in the pile foundation of the building when the building is constructed, so that they are compatible with the building structure. Combine

Images