Vertical buried pipe for ground source heat pump

By designing a vertical buried pipe for ground source heat pump with spiral heat exchange pipes and annular grooves, the problem of insufficient improvement of heat exchange area in the prior art is solved, and more efficient use of ground source heat energy is achieved.

CN222670362UActive Publication Date: 2025-03-25NOVELAND CORP
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Patent Information

Application Number
CN202421362613.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-14
Publication Date
2025-03-25
Estimated Expiration
2034-06-14

AI Technical Summary

Technical Problem

In the prior art, the heat exchange area is increased by setting up an S-shaped tube and a hollow sheet. The effect of increasing the heat exchange area is not obvious, and there is also a certain room for improvement.

Method used

A vertical buried pipe for ground source heat pump is designed, including an inner fixing cylinder and an outer sleeve. The outer coaxial sleeve of the inner fixing cylinder is equipped with a spiral heat exchange tube. An annular groove is opened on the outer end surface of the outer sleeve. The annular groove is evenly distributed along the length direction of the outer sleeve. Both ends of the inner fixing cylinder and the outer sleeve are fixedly connected with an annular cover plate to form a heat exchange chamber. The spiral heat exchange tube is arranged in the heat exchange chamber, and the heat exchange chamber is filled with a heat transfer medium.

Benefits of technology

By increasing the heat exchange surface area of ​​the heat exchange chamber and the heat exchange capacity of the spiral heat exchange tube, the heat collection efficiency and geothermal utilization efficiency of the ground source heat pump are significantly improved.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The utility model discloses a vertical buried pipe for a ground source heat pump, which comprises an inner-layer fixed cylinder, a spiral heat exchange pipe, a connecting pipe I, a main inlet pipe, a main outlet pipe and an outer-layer sleeve, when the vertical buried pipe is used, heat energy in soil is absorbed through a heat exchange inner cavity of the inner-layer fixed cylinder and the outer-layer sleeve; heat transfer media in a heat exchange cavity are transferred to circulating fluid in a spiral heat exchange pipe to achieve transfer and utilization of ground source heat energy, a heat exchange inner cavity is formed in an inner-layer fixing cylinder in a penetrating mode, annular grooves are evenly distributed in the length direction of an outer-layer sleeve, and when the device is buried, the heat exchange inner cavity is also filled with soil; the heat exchange surface area of the device can be greatly increased by arranging the annular groove and the heat exchange inner cavity, the heat collection efficiency of the device is improved, the heat energy collection capacity of the device can be improved through the spiral heat exchange pipe arranged in the heat exchange cavity, and the utilization efficiency of terrestrial heat is higher.
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