Ground source heat pump efficient heat exchanger and construction method thereof

Abstract

The invention discloses a ground source heat pump efficient heat exchanger and a construction method thereof. The ground source heat pump efficient heat exchanger is characterized in that a sleeve structure is arranged in a bored well, an outer sleeve in the sleeve structure is a steel pipe, the steel pipe with the sealed bottom is taken as a supporting and protecting pipe in the bored well, an internal pipe in the sleeve structure is a PE (polyethylene) straight pipe with the through bottom, and an annular clamping sleeve is formed between the steel pipe and the PE straight pipe. Compared with conventional double-U-shaped-pipe heat exchangers, the ground source heat pump efficient heat exchanger has the advantages that single-well heat exchanging efficiency is improved by 3-5 times, the number and the used land area of the conventional heat exchangers are greatly reduced, and the ground source heat pump efficient heat exchanger has certain reparability.

Description

technical field [0001] The invention belongs to the field of development and utilization of renewable new energy, and in particular relates to efficient utilization of ground source energy for heating and cooling of buildings. technical background [0002] Studies have shown that the earth formed 4.6 billion years ago has accumulated a lot of energy in its interior during the long evolution process, and its core temperature is as high as 6880 °C, which is more than a thousand degrees higher than the 5500 °C on the surface of the sun. Volcanic eruptions let humans directly experience the great power of its energy. [0003] Drilling and measurements have shown that the temperature below 20 meters on the surface is no longer affected by solar radiation, and the temperature of each deep layer is controlled by the conduction heat of the earth's core, which is constant throughout the year. The temperature is 19-20°C at 100 meters below the surface, and 21-22°C at 200 meters. For ...

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Problems solved by technology

[0007] 1. The heat exchange efficiency is low and the floor area is large, so many buildings do not have the conditions to use this technology;

[0008] 2. Since there are too many heat exchangers and most of them are buried in the basement of the building, they are basically not repairable;

[0009] 3. Under the conditions of group holes in the heat exchanger, the long-term performance and stability of the system need to be studied;

[0010] 4. The lower part of the building and its surroundings are densely distributed with holes, and the holes are deeper than the foundation. Its impact on the foundation structure needs to be studied

[0011] The above problems make it impossible for more than 70% of new buildings to adopt the ground source heat pump air conditioning system, and it is even more difficult to use the old building renovation

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