CN211668052U - Geothermal well and middle-deep geothermal heat exchange system - Google Patents
Geothermal well and middle-deep geothermal heat exchange system Download PDFInfo
- Publication number
- CN211668052U CN211668052U CN201922282734.4U CN201922282734U CN211668052U CN 211668052 U CN211668052 U CN 211668052U CN 201922282734 U CN201922282734 U CN 201922282734U CN 211668052 U CN211668052 U CN 211668052U
- Authority
- CN
- China
- Prior art keywords
- well
- geothermal
- heat exchange
- water outlet
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The utility model discloses a geothermal well and middle and deep geothermal heat transfer system, geothermal well include heat transfer well and go out the water well, go out the vertical setting of water well, just go out in the lower extreme of water well extends to the underground rock formation, the heat transfer well level sets up in the rock formation, and its one end with go out the lower extreme intercommunication of water well, its other end upwards buckles and runs through the earth's surface, the upper end of going out the water well is used for the water inlet of intercommunication heat exchanger, the upper end of heat transfer well is used for the intercommunication the delivery port of heat exchanger. Horizontal well section of heat transfer well has increased its area of contact with the stratum, is favorable to improving its inside circulating water and the abundant heat transfer of stratum, avoids the corruption that the geothermal fluid flowed the cause in the geothermal well, is favorable to prolonging the life of geothermal well.
Description
Technical Field
The utility model relates to a geothermol power technical field, in particular to geothermal well and middle and deep layer geothermol power heat transfer system.
Background
The coal-fired heating causes the long-time and large-scale haze weather in the northern area of China, so that the northern area is greatly promoted to be cleaned and heated in winter, and the heating is not slow. The geothermal resources in China are widely distributed, are renewable energy sources, have the advantages of abundant reserves, cleanness, large development potential, direct utilization and the like, and the geothermal energy heat supply can reduce large-scale coal burning, reduce the double pressure of the heat preservation and supply and the price caused by natural gas heat supply, lighten the severe weather of the haze in the north in winter and is undoubtedly a good solution for cleaning and heating in winter at present.
Traditional middle-deep geothermal heat is pumped out geothermal fluid to exchange heat with a ground source heat pump unit and then is recharged, the geothermal fluid is high in corrosivity, and the middle-deep geothermal heating faces the problems of difficult recharging, scaling corrosion and small geothermal well water quantity.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a geothermal well and middle and deep geothermal heat transfer system, the technical scheme of adoption is:
the utility model provides a geothermal well, includes heat transfer well and outlet well, the vertical setting of outlet well, just the lower extreme of outlet well extends to in the underground rock formation, heat transfer well level sets up in the rock formation, and its one end with the lower extreme intercommunication of outlet well, its other end upwards buckles and runs through the earth's surface, the upper end of outlet well is used for communicateing the water inlet of heat exchanger, the upper end of heat transfer well is used for the intercommunication the delivery port of heat exchanger.
Preferably, the heat exchange well is provided with a plurality of heat exchange wells, the heat exchange wells are arranged around the water outlet well in an enclosing manner, the lower ends of the heat exchange wells are communicated with the lower end of the water outlet well, and the upper ends of the heat exchange wells are communicated with the water outlet of the same heat exchanger.
Preferably, the well depth of the water outlet well is 1500-3000m, the well depth of the heat exchange well is 1510-5000m, and the length of the horizontal well section is 10-2000 m.
Preferably, the system further comprises a docking chamber, the docking chamber is arranged in the rock stratum and located below the water outlet well, the lower end of the water outlet well is communicated with the upper end of the docking chamber, and the lower ends of the heat exchange wells are respectively communicated with the docking chamber.
Preferably, the docking chamber is cylindrical.
Preferably, the docking chamber has a diameter of 200mm to 50000m and a height of 200mm to 10000 mm.
Preferably, the outer side wall of the water outlet well is provided with an insulating layer.
Horizontal well section of heat transfer well has increased its area of contact with the stratum, is favorable to improving its inside circulating water and the abundant heat transfer of stratum, avoids the corruption that the geothermal fluid flowed the cause in the geothermal well, is favorable to prolonging the life of geothermal well.
The middle-deep geothermal heat exchange system comprises the geothermal well, circulating water is injected into the geothermal well, the geothermal well further comprises a heat exchanger arranged on the ground, the upper end of the water outlet well is communicated with a water inlet of the heat exchanger, and a water outlet of the heat exchanger is communicated with the upper end of the heat exchange well.
Middle-deep geothermal heat transfer system utilizes the circulating water fully to acquire behind the geothermol power with the heat transfer of ground source heat pump unit, improves the geothermol power that the geothermal well drawed, and circulating flow volume is big in the geothermal well for the circulating water, and heat transfer volume is big, is favorable to for more building heat supplies.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
FIG. 1 is a side view of a geothermal well according to an embodiment of the present invention;
fig. 2 is a top view of a geothermal well according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a heat exchange system according to an embodiment of the present invention.
The specific meanings of the reference numerals are:
1. a heat exchange well; 2. a water outlet well; 3. a docking chamber; 4. a heat exchanger.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The principles and features of the present invention are described below in conjunction with the accompanying fig. 1-3, the examples given are intended to illustrate the present invention and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-2, provide an embodiment of the utility model, this embodiment the geothermal well includes heat transfer well 1 and outlet shaft 2, the vertical setting of outlet shaft 2, just the lower extreme of outlet shaft 2 extends to in the underground rock formation, 1 level setting of heat transfer well is in the rock formation, and its one end with the lower extreme intercommunication of outlet shaft 2, its other end upwards buckle and run through the earth's surface, the upper end of outlet shaft 2 is used for the water inlet of intercommunication heat exchanger, the upper end of heat transfer well 1 is used for the intercommunication the delivery port of heat exchanger.
Circulating water is filled in the geothermal well, the circulating water flows down to a horizontal well section of the geothermal well through the heat exchange well 1 and flows into the water outlet well 2 after passing through the horizontal well section of the heat exchange well 1, so that the circulating water flows into the water outlet well 2 after fully exchanging heat with high-temperature surrounding rocks when flowing in the horizontal well section of the heat exchange well 1, the circulating water in the water outlet well 2 flows into an evaporator external circulating coil pipe of the ground source heat pump unit after being lifted, and circularly flows into the heat exchange well after exchanging heat with an evaporator.
This embodiment the horizontal well section of heat transfer well 1 has increased its area of contact with the country rock, is favorable to making its inside circulating water and the abundant heat transfer of stratum, simultaneously, the circulating water is in geothermal well flows, avoids the corruption that geothermal fluid flowed and causes in geothermal well, is favorable to prolonging geothermal well's life.
The well depth of the water outlet well 2 is 1500-3000m, the well depth of the heat exchange well 1 is 1510-5000m, and the length of the horizontal well section is 10-2000m, so that the depth of the water outlet well 2, the well depth of the heat exchange well 1 and the length of the horizontal well section of the heat exchange well 1 can meet different geothermal geological conditions, bottom temperature and user requirements of different places.
The lateral wall of the water outlet well 2 is provided with a heat preservation layer, the heat preservation layer reduces the heat exchange between the water outlet well 2 and surrounding rocks with lower temperature, and the temperature of circulating water in the water outlet well 2 is prevented from being reduced.
As shown in fig. 3, the embodiment provides a middle-deep geothermal heat exchange system according to the geothermal well, the middle-deep geothermal heat exchange system includes the geothermal well, circulating water is injected into the geothermal well, the system further includes a heat exchanger 4 arranged on the ground, the upper end of the water outlet well 2 is communicated with the water inlet of the heat exchanger 4, and the water outlet of the heat exchanger 4 is communicated with the upper end of the heat exchange well 1.
Circulating water is injected into the geothermal well, the circulating water is utilized to fully obtain geothermal heat and then exchanges heat with the ground source heat pump unit, the geothermal heat extracted by the geothermal well is improved, and the circulating flow quantity of the circulating water in the geothermal well is large, the heat exchange quantity is large, and the heat supply for more buildings is facilitated; the heat exchange system occupies a small area and can be constructed in urban areas with small construction sites.
Preferably, heat exchange well 1 is equipped with a plurality ofly, and is a plurality of heat exchange well 1 encloses to be established around outlet well 2, and is a plurality of the lower extreme of heat exchange well 1 respectively with the lower extreme intercommunication of outlet well 2, it is a plurality of the upper end of heat exchange well 1 respectively with the delivery port intercommunication of heat exchanger.
During the construction of the heat exchange system, the number of the heat exchange wells 1 can be designed according to actual requirements, and one water outlet well 2 is in butt joint with a plurality of heat exchange wells 1, so that the plurality of heat exchange wells 1 can collect geothermal heat to the water outlet well after obtaining the geothermal heat from different places, and the temperature of water discharged from the water outlet well 2 is ensured.
Preferably, the system further comprises a docking chamber 3, the docking chamber 3 is arranged in the rock formation and located below the water outlet well 2, the lower end of the water outlet well 2 is communicated with the upper end of the docking chamber 3, and the lower ends of the heat exchange wells 1 are respectively communicated with the docking chamber 3.
The butt joint chamber 3 is convenient for butt joint construction of the heat exchange wells 1 and the butt joint chamber 3 on one hand, and on the other hand, circulating water in the heat exchange wells 1 flows into the butt joint chamber 3 and flows out through the water outlet well 2 after being buffered, so that the circulating water treatment capacity of the heat exchange system is ensured, the running stability of the heat exchange system is ensured, the circulating water treatment capacity of the heat exchange system is increased, heat supply for more buildings is facilitated, the butt joint chamber 3 is arranged in a rock stratum, the butt joint chamber 3 exchanges heat with the rock stratum, the heat exchange capacity of the heat exchange system is improved, and heat supply for more buildings is facilitated; and the circulating water which flows into the butt joint chamber 3 and has lower temperature is uniformly mixed with the circulating water in the butt joint chamber 3, so that the stability of the outlet water temperature of the outlet well 2 is ensured.
The butt joint chamber 3 is cylindrical, and is favorable for butt joint of the heat exchange well 1 and the butt joint chamber 3.
The diameter of the docking chamber 3 is 200mm-50000m, and the height is 200mm-10000mm, so that the diameter and the height of the docking chamber 3 meet the requirements of different geothermy geological conditions and different water yields.
In order to ensure the service life of the geothermal heat exchange system, the butt joint chamber 3 needs to be subjected to leakage-proof and seepage-proof treatment.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the present invention can be smoothly implemented by those skilled in the art according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.
Claims (6)
1. The geothermal well is characterized by comprising a heat exchange well (1), a water outlet well (2) and a butt joint chamber (3), wherein the water outlet well (2) is vertically arranged, the lower end of the water outlet well (2) extends into an underground rock stratum, the heat exchange well (1) is horizontally arranged in the rock stratum, one end of the heat exchange well is communicated with the lower end of the water outlet well (2), the other end of the heat exchange well is bent upwards and penetrates through the earth surface, the upper end of the water outlet well (2) is used for being communicated with a water inlet of a heat exchanger, the upper end of the heat exchange well (1) is used for being communicated with a water outlet of the heat exchanger, the heat exchange well (1) is provided with a plurality of heat exchange wells (1) which are arranged around the water outlet well (2), the lower ends of the heat exchange wells (1) are communicated with the lower end of the water outlet well (2), and the upper ends of the heat exchange, the butt joint chamber (3) is arranged in a rock stratum and located below the water outlet well (2), the lower end of the water outlet well (2) is communicated with the upper end of the butt joint chamber (3), and the lower ends of the heat exchange wells (1) are respectively communicated with the butt joint chamber (3).
2. The geothermal well according to claim 1, wherein the well depth of the water outlet well (2) is 1500-3000m, the well depth of the heat exchange well (1) is 1510-5000m, and the length of the horizontal well section is 10-2000 m.
3. A geothermal well according to claim 1, characterized in that the docking chamber (3) is cylindrical.
4. A geothermal well according to claim 3, characterized in that the docking chamber (3) has a diameter of 200mm-50000m and a height of 200mm-10000 mm.
5. A geothermal well according to any one of claims 1-4, characterized in that the outer side wall of the outlet well (2) is provided with insulation.
6. A medium-deep geothermal heat exchange system, which comprises the geothermal well as defined in any one of claims 1-5, wherein circulating water is injected into the geothermal well, and the system further comprises a heat exchanger (4) arranged on the ground, wherein the well head of the water outlet well (2) is communicated with the water inlet of the heat exchanger (4), and the water outlet of the heat exchanger (4) is communicated with the inlet of the heat exchange well (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922282734.4U CN211668052U (en) | 2019-12-18 | 2019-12-18 | Geothermal well and middle-deep geothermal heat exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922282734.4U CN211668052U (en) | 2019-12-18 | 2019-12-18 | Geothermal well and middle-deep geothermal heat exchange system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211668052U true CN211668052U (en) | 2020-10-13 |
Family
ID=72735516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922282734.4U Active CN211668052U (en) | 2019-12-18 | 2019-12-18 | Geothermal well and middle-deep geothermal heat exchange system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211668052U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427755A (en) * | 2022-01-17 | 2022-05-03 | 中国科学院广州能源研究所 | Efficient heat taking system of U-shaped heat exchanger for karst heat storage |
| WO2023019292A1 (en) * | 2021-08-20 | 2023-02-23 | Good Water Energy Ltd | Multi-well geothermal syphoning system |
-
2019
- 2019-12-18 CN CN201922282734.4U patent/CN211668052U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023019292A1 (en) * | 2021-08-20 | 2023-02-23 | Good Water Energy Ltd | Multi-well geothermal syphoning system |
| CN114427755A (en) * | 2022-01-17 | 2022-05-03 | 中国科学院广州能源研究所 | Efficient heat taking system of U-shaped heat exchanger for karst heat storage |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211668052U (en) | Geothermal well and middle-deep geothermal heat exchange system | |
| CN201866970U (en) | Same-floor geothermal energy cyclic utilization system | |
| CN106247646A (en) | Hot systems is taken under a kind of mid-deep strata geothermal well | |
| CN107940784A (en) | A kind of open heat-exchange system in mid-deep strata geothermal energy underground and method | |
| CN110044090B (en) | Efficient Shan Jingjing lower heat exchange system | |
| CN101933447B (en) | Constant temperature heating system of hothouse | |
| CN210740774U (en) | Closed circulating type heat source system of combined well | |
| CN212806114U (en) | Coaxial combined sleeve type heat exchanger | |
| CN113639304A (en) | Forced convection heat exchange type geothermal water horizontal well single well heat supply system | |
| CN101984309B (en) | Cold-heat exchange system for underground water source | |
| CN110131909A (en) | Goaf heat collection heat-exchange system and collection heat-exchange method | |
| CN213480633U (en) | Hot dry rock heat transfer device | |
| CN101012977B (en) | Underground water centralized supply multipoint back-filling system | |
| CN210602306U (en) | Geothermal energy well structure | |
| CN210718214U (en) | Ground ring water source heat pump system without pumping underground water | |
| CN102012131B (en) | A multiple-well-circle heating exchange method for ground source heat pump system and a system for the same | |
| CN209783024U (en) | Shallow geothermal energy utilization device based on underground water flow system | |
| CN210532722U (en) | Buried heat exchanger | |
| CN208595835U (en) | A kind of noiseless heat exchanger of R22 | |
| CN213208260U (en) | Multifunctional inner pipe structure based on intermediate-deep-layer geothermal source heat pump double-pipe heat exchanger | |
| CN204854431U (en) | Heat pipe formula rock stratum heat exchanger | |
| CN205842068U (en) | A kind of exchange joint in earth-source hot-pump system | |
| CN110630310A (en) | Fracturing double-horizontal-well compressed air energy storage ventilation system for coal mine well | |
| CN112728792A (en) | Underground enhanced heat exchange system and method | |
| CN111287672A (en) | Heat exchange and heat insulation sleeve for exploiting terrestrial heat by utilizing waste oil well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210301 Address after: No. 277, GuoShouJing North Road, Xingtai City, Hebei Province 054000 Patentee after: The second hydrogeological team of China General Administration of coal geology Address before: No. 154, Fuhe street, Handan City, Hebei Province Patentee before: HYDROGEOLOGY BUREAU OF CHINA NATIONAL ADMINISTRATION OF COAL GEOLOGY |
|
| TR01 | Transfer of patent right |