CN212511890U

CN212511890U - High-efficient heat transfer device is used to geothermal energy

Info

Publication number: CN212511890U
Application number: CN202021033091.6U
Authority: CN
Inventors: 陈谢应
Original assignee: Hunan Songchuan Aineng Technology Co ltd
Current assignee: Hunan Songchuan Aineng Technology Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-02-09
Anticipated expiration: 2030-06-08

Abstract

The utility model provides a geothermal energy uses high-efficient heat transfer device, include: the geothermal heat collecting device comprises a cold water outer pipe and a hot water inner pipe, wherein the cold water outer pipe and the hot water inner pipe are coaxially sleeved, the cold water outer pipe and the hot water inner pipe are arranged in a geothermal well, the upper layer of the geothermal well is a non-heat-exchange section, the lower layer of the geothermal well is a heat-exchange section, a heat-exchange hole is formed in the well wall of the heat-exchange section, the part, located in the non-heat-exchange section, of the hot water inner pipe is made of a heat-insulating wall, a water outlet hole is formed in the bottom of the cold water outer pipe, the bottom of the hot water inner pipe extends out of the bottom of the cold water outer pipe and is connected with a water pump, the water pump is arranged in a heat collecting cavity, the water outlet hole of the cold water outer pipe is communicated with the heat collecting cavity.

Description

High-efficient heat transfer device is used to geothermal energy

Technical Field

The technology belongs to the technical field of development and utilization of geothermal energy, and mainly relates to a high-efficiency heat exchange device for the geothermal energy.

Background

Geothermal energy is renewable energy stored in the earth, the storage capacity of global geothermal energy is very huge, and since geothermal energy is stored underground, the geothermal energy cannot be influenced by weather conditions and has all the characteristics of other renewable resources, the efficient environment-friendly exploitation of geothermal resources is more and more emphasized. The geothermal energy is efficiently utilized, and the geothermal energy heat exchange device with reasonable design is the key.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a geothermal energy uses high-efficient heat transfer device reaches the purpose of high-efficient heat transfer.

An efficient heat exchange device for geothermal energy, comprising: the heat collecting device comprises a cold water outer pipe and a hot water inner pipe, wherein the cold water outer pipe and the hot water inner pipe are coaxially sleeved, the cold water outer pipe and the hot water inner pipe are arranged in a geothermal well, the upper layer of the geothermal well is a non-heat-exchange section, the lower layer of the geothermal well is a heat-exchange section, a heat-exchange hole is formed in the well wall of the heat-exchange section, the part, located in the non-heat-exchange section, of the hot water inner pipe is made of a heat-insulating wall, a water outlet hole is formed in the bottom of the cold water outer pipe, the bottom of the hot water inner pipe extends out of the bottom of the cold water outer pipe and is connected with a water pump, the water pump is arranged in a heat.

Furthermore, the part of the hot water inner pipe, which is positioned in the heat exchange section, is made of an external thread wall, the external thread wall is installed in a matched manner with the bottom of the cold water outer pipe, and threads are arranged on the inner wall of the cold water outer pipe.

Further, the heat insulation wall is made of one of polyvinyl chloride and polyethylene materials.

Further, the cold water outer pipe and the external thread wall are made of one of cast iron, copper and stainless steel materials.

The working principle of the utility model is that, the upper layer of the hot water inner pipe is connected with the heating system, the ground is used for heating buildings and the like, after the use, cold water returns to the cold water outer pipe, the cold water flows to the heat collection cavity through the cold water outer pipe, after flowing to the deeper heat exchange section of the geothermal well, through the heat exchange hole, the cold water in the cold water outer pipe is preheated, after flowing to the heat collection cavity, through the effect of the heat absorption fins, terrestrial heat is used for heating the water in the heat collection cavity, the water pump pumps the hot water in the heat collection cavity to the earth surface, the hot water flows to the earth surface in the hot water inner pipe, the heat exchange section does not need to be insulated and designed, the heat insulation wall is needed to; the utility model has the advantages that, through the heat-collecting cavity with the heat absorption fin set up make full use of geothermal energy and add hot water, need not excessively deepen the degree of depth of geothermal well, can high-efficiently utilize geothermal energy to carry out the heat transfer.

Drawings

FIG. 1 is a schematic structural view of a high-efficiency heat exchange device for geothermal energy;

in the figure: 1-geothermal well, 2-cold water outer pipe, 3-hot water inner pipe, 4-heat collecting cavity, 5-water pump, 12-heat exchanging section, 13-heat exchanging hole, 31-heat insulating wall, 32-external thread wall, 41-heat absorbing fin.

Detailed Description

The present invention will be further described with reference to the accompanying drawings so as to facilitate the understanding of the present invention by those skilled in the art.

All directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Example 1: as shown in the attached figure 1, the high-efficiency heat exchange device for geothermal energy comprises: the heat collecting device comprises a cold water outer pipe 2 and a hot water inner pipe 3, wherein the cold water outer pipe 2 and the hot water inner pipe 3 are coaxially sleeved, the cold water outer pipe 2 and the hot water inner pipe 3 are arranged in a geothermal well 1, the upper layer of the geothermal well 1 is a non-heat-exchange section, the lower layer of the geothermal well 1 is a heat-exchange section 12, a heat-exchange hole 13 is formed in the well wall of the heat-exchange section 12, the part, located in the non-heat-exchange section, of the hot water inner pipe 3 is made of a heat-insulation wall 31, the part, located in the heat-exchange section, of the heat-exchange section is made of an external thread wall 32, the external thread wall 32 is matched and installed with the bottom of the cold water outer pipe 2, a water outlet hole is formed in the bottom of the cold water outer pipe 2, the bottom of the hot water inner pipe 3 extends out of the bottom of the cold water outer pipe 2, the heat absorption fins 41 extend into the geothermal layer to absorb heat, the heat insulation wall 31 is made of polyvinyl chloride, polyethylene and the like, and the cold water outer pipe 2 and the external thread wall are made of cast iron, copper, stainless steel and the like.

The working principle of the utility model is that, the upper layer of hot water inner tube 3 connects heating system, supply ground to use this geothermal energy to be used for building heating etc., after using up, cold water gets back to cold water outer tube 2, flow to thermal-arrest chamber 4 through cold water outer tube 2, after flowing to the darker heat transfer section 12 of geothermal well 1, through heat exchange hole 13, cold water in the cold water outer tube 2 is preheated, after flowing to the thermal-arrest chamber, through the effect of heat absorption fin 41, geothermol power is used for heating the water in thermal-arrest chamber 4, water pump 5 pumps the hot water in thermal-arrest chamber 4 to the earth's surface, hot water flows to the earth's surface in hot water inner tube 3, need not carry out adiabatic design at heat transfer section 12, need set up adiabatic wall 31 and guarantee the leaving water temperature after being; the utility model has the advantages that, through the heat-collecting cavity with the heat absorption fin set up make full use of geothermal energy and add hot water, need not excessively deepen geothermal well 1's degree of depth, can high-efficiently utilize geothermal energy to carry out the heat transfer.

The above embodiments are only used for illustrating the specific embodiments of the present invention, and are not used for limiting the present invention, and a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a geothermal energy uses high-efficient heat transfer device which characterized in that includes: the heat collecting device comprises a cold water outer pipe and a hot water inner pipe, wherein the cold water outer pipe and the hot water inner pipe are coaxially sleeved, the cold water outer pipe and the hot water inner pipe are arranged in a geothermal well, the upper layer of the geothermal well is a non-heat-exchange section, the lower layer of the geothermal well is a heat-exchange section, a heat-exchange hole is formed in the well wall of the heat-exchange section, the part, located in the non-heat-exchange section, of the hot water inner pipe is made of a heat-insulating wall, a water outlet hole is formed in the bottom of the cold water outer pipe, the bottom of the hot water inner pipe extends out of the bottom of the cold water outer pipe and is connected with a water pump, the water pump is arranged in a heat.

2. The efficient heat exchange device for geothermal energy according to claim 1, wherein the part of the hot water inner pipe located in the heat exchange section is made of an external thread wall, the external thread wall is installed in cooperation with the bottom of the cold water outer pipe, and threads are arranged on the inner wall of the cold water outer pipe.

3. The efficient heat exchange device for geothermal energy as recited in claim 1, wherein the heat insulating wall is made of one of polyvinyl chloride and polyethylene.

4. The efficient heat exchange device for the geothermal energy according to any one of claims 1 to 3, wherein the cold water outer pipe and the external thread wall are made of one of cast iron, copper and stainless steel materials.