A prestressed pipe pile device for combined cooling, heating and power generation and its manufacturing method

Abstract

The invention discloses a prestressed pipe pile device for combined cooling, heating and power generation and a manufacturing method thereof, which is characterized in that it includes a prestressed pipe pile air conditioning system and a prestressed pipe pile temperature difference power generation system, and the heat exchange in the prestressed pipe pile body Tubes, water pump I, valves and heat exchange equipment form a shallow geothermal energy air-conditioning system; the semiconductor thermoelectric power generation device I and semiconductor thermoelectric power generation device II outside the heat exchange tubes are composed of water pump II, DC / DC converter, battery and wires Shallow geothermal energy temperature difference power generation system; combined cooling, heating and power prestressed pipe piles are a new type of multifunctional composite energy application system. In addition to providing the function of supporting the load of the upper building, using shallow geothermal energy to cool the upper building In addition to the function of heating or heating, it can also use the temperature difference between the liquid in the heat exchange tube and the soil to generate electricity to supply electricity to the upper building, and can improve the heat exchange efficiency between the heat exchange tube and the soil; this system not only effectively realizes the expected The composite utilization of stress pipe piles in three aspects of mechanics, heat and electricity has realized the multi-objective effective utilization of shallow geothermal energy on demand and at different times, and improved energy utilization efficiency.

Description

technical field [0001] The invention relates to a shallow geothermal energy utilization technology, which is mainly applicable to technical fields such as building pile foundations, and in particular relates to a prestressed pipe pile device for combined cooling, heating and power generation and a manufacturing 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 heat pump technology is one of the mo...

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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 geothermal temperature difference power generation scheme, the construction cost of vertical drilling and buried pipe is high, it is difficult to construct in the case of relatively large building volume ratio, and there is no problem of using the temperature difference between the soil itself and the medium for direct power generation Combining the traditional prestressed pipe pile foundation, shallow geothermal energy utilization and semiconductor temperature difference power generation technology, a prestressed pipe pile device for combined cooling, heating and power generation and its manufacturing method are proposed. When the building is constructed, the temperature difference power generation device and the The ground source heat pump unit is systematically buried in the pile foundation of the building so that it is integrated with the building structure

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