CN109798683A - Shallow layer geothermal energy based on groundwater flow system utilizes device - Google Patents

Shallow layer geothermal energy based on groundwater flow system utilizes device Download PDF

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Publication number
CN109798683A
CN109798683A CN201910194370.6A CN201910194370A CN109798683A CN 109798683 A CN109798683 A CN 109798683A CN 201910194370 A CN201910194370 A CN 201910194370A CN 109798683 A CN109798683 A CN 109798683A
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CN
China
Prior art keywords
water
pipe well
well
pit shaft
geothermal energy
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.)
Pending
Application number
CN201910194370.6A
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Chinese (zh)
Inventor
孟庆海
赵仁璧
张正
张新宏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Geological Mineral And Geothermal Energy Exploration Research Institute Co Ltd
Anhui Industrial Economy Vocationl Technical College
Original Assignee
Anhui Geological Mineral And Geothermal Energy Exploration Research Institute Co Ltd
Anhui Industrial Economy Vocationl Technical College
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Geological Mineral And Geothermal Energy Exploration Research Institute Co Ltd, Anhui Industrial Economy Vocationl Technical College filed Critical Anhui Geological Mineral And Geothermal Energy Exploration Research Institute Co Ltd
Priority to CN201910194370.6A priority Critical patent/CN109798683A/en
Publication of CN109798683A publication Critical patent/CN109798683A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/10Geothermal energy

Abstract

The invention belongs to geothermal energy development technical fields, in particular to a kind of shallow layer geothermal energy based on groundwater flow system utilizes device, including heat exchanger, the entrance of cold and heat source is equipped with water inlet pipe in heat exchanger, outlet is equipped with drainpipe, it further include the heat exchange well that pit shaft cylinder bottom is located in water-bearing layer, water inlet pipe extends to pit shaft cylinder bottom, the barrel of pit shaft is equipped with draining pipe well, the extending direction of draining pipe well is consistent with the seepage direction of water in water-bearing layer, and drainpipe is connected to the heat-exchanging water emission path constituted with the isolation of pit shaft barrel chamber with draining pipe well.Wellbore arrangement of the discharge areas of recharge water far from heat exchange well in the present invention, need to only be drilled with a wellbore can be realized reliable, the stable utilization of shallow layer geothermal energy, and construction cost is low, and effect on environment is small, should be widely promoted.

Description

Shallow layer geothermal energy based on groundwater flow system utilizes device
Technical field
The invention belongs to geothermal energy development technical field, in particular to a kind of shallow layer geothermal energy based on groundwater flow system Utilize device.
Background technique
Groundwater flow system refers to the process and state that underground water is flowed from feeding area to discharge area, has unified space-time The body of groundwater of evolution process is made of input, output and hydrogeological entity three parts.
The exploitation mode of shallow layer geothermal energy is mainly earth source heat pump at present, and earth source heat pump can be divided into underground water source heat Pump, surface water source heat pump and closed-loop ground source heat pump.Wherein groundwater heat pump is referred to using underground constant temperature water-bearing layer as storage Ergosphere extracts recharge after heat exchange, realizes the energy transfer of shallow layer geothermal energy using phreatic water as energy carrier, this is usually It needs that water intake well and inverted well is respectively set, so that building for earth source heat pump is at high cost with maintenance;Surface water source heat pump system It is then to extract the cold and heat sources of the surface water as heat pump such as river, lake water, river water, seawater, reservoir, but surface water is by big compression ring The influence of border temperature, water temperature fluctuation is larger, so that the working efficiency of heat pump can not ensure.Therefore it provides a kind of good effect of heat exchange, Stable ground-source heat pump system becomes technical problem urgently to be resolved.
Summary of the invention
The purpose of the present invention is to provide a kind of environmental-friendly, high geothermals based on groundwater flow system of stability Device can be utilized.
In order to achieve the above object, the technical solution adopted by the present invention are as follows: a kind of geothermal based on groundwater flow system Device, including heat exchanger can be utilized, it further includes well that the entrance of cold and heat source, which is equipped with water inlet pipe, in heat exchanger, outlet is equipped with drainpipe Cylinder cylinder bottom is located at the heat exchange well in water-bearing layer, and water inlet pipe extends to pit shaft cylinder bottom, and the barrel of pit shaft is equipped with draining pipe well, draining The extending direction of pipe well is consistent with the seepage direction of water in water-bearing layer, drainpipe with draining pipe well be connected to composition and pit shaft barrel chamber every Exhausted heat-exchanging water emission path.
Compared with prior art, there are following technical effects by the present invention: well of the discharge areas of recharge water far from heat exchange well Cylinder arrangement, need to only be drilled with a wellbore can be realized reliable, the stable utilization of shallow layer geothermal energy, and construction cost is low, to ring Border influence is small, should be widely promoted.
Detailed description of the invention
Content expressed by each attached drawing of this specification and the label in figure are briefly described below:
Fig. 1,3 are schematic diagrames of the invention;
Fig. 2,4 be heat exchange well schematic top plan view.
In figure: 10. heat exchangers, 11. water inlet pipes, 12. drainpipes, 20. heat exchange wells, 21. pit shafts, 22. draining pipe wells, 23. Diversion pipe well, the water-bearing layer A., B. water barrier.
Specific embodiment
With reference to the accompanying drawing, by the description of the embodiment, making further specifically to a specific embodiment of the invention It is bright.
A kind of shallow layer geothermal energy based on groundwater flow system utilizes device, as shown in Figs 1-4, including heat exchanger 10, it changes The entrance of cold source, heat source is equipped with water inlet pipe 11, outlet equipped with drainpipe 12 in hot device 10.21 bottoms of pit shaft of heat exchange well are located at and contain In water layer A, water inlet pipe 11 extends to 21 bottoms of the pit shaft, and the barrel of pit shaft 21 is equipped with draining pipe well 22, draining pipe well 22 Extending direction is consistent with the seepage direction of water in the A of water-bearing layer, and drainpipe 12 is connected to composition and 21 barrel chamber of pit shaft with draining pipe well 22 The heat-exchanging water emission path of isolation.
When it is implemented, entering heat exchanger through water inlet pipe 11 under the action of power source as the underground water of cold source or heat source 10, after exchanging heat, followed by drainpipe 11, draining pipe well 22 by recharge to the subsurface flow for being located at heat exchange well downstream Place.The discharge areas of recharge water is arranged far from the pit shaft 21 of heat exchange well 20 in this way, and effectively recharge water can be avoided to seepage action of ground water Excessively high and to water temperature in pit shaft 11 the adverse effect of 21 water level of pit shaft caused by the reverse flow in direction, to guarantee that device works Stability.In the present embodiment, immersible pump is set as power source in the pipeline section of water inlet pipe 11.
Preferably, diversion pipe well 23, the bottom cylinder company of diversion pipe well 23 and pit shaft 21 are additionally provided on the barrel of pit shaft 21 Logical, the extending direction of diversion pipe well 23 is opposite with the seepage direction of water in the A of water-bearing layer.Diversion pipe well 23 is able to ascend in pit shaft 21 Water collects efficiency, thus the reliability and stability of the work of lifting device.
Preferably, pit shaft 21 runs through two water-bearing layer A arranged up and down, is respectively disposed with drainpipe in two water-bearing layer A Well 22 and/or diversion pipe well 23.As shown in figure 3, water barrier B separates two water-bearing layer A arranged up and down, as a water-bearing layer A When interior underground water cannot satisfy the use demand, draining pipe well 22 and/or diversion pipe well are respectively arranged in two water-bearing layer A 23。
Preferably, arranged for interval has multiple, the row of disposed adjacent in the horizontal plane for draining pipe well 22 and/or diversion pipe well 23 Water pipe manhole 22 and/or 23 angle of diversion pipe well arrangement.As shown in Fig. 2, its adjacent 22 angle of draining pipe well arrangement, to expand back The discharge areas poured water further prevents recharge water to the reverse flow in seepage action of ground water direction.
Preferably, 23 arranged for interval of diversion pipe well has multiple, and the well of diversion pipe well 23 is long and the diversion pipe well 23 and its cloth It is negatively correlated to set the spacing of center in the horizontal plane.As shown in Fig. 2, being located at middle part in the spaced apart diversion pipe well 23 of horizontal direction Pipe well well grow up, positioned at two sides pipe well well length it is small, to expand water-diverting area.
Preferably, the length for draining pipe well 22 is longer than 80m, guarantees the discharge areas of recharge water far from pit shaft 21, to mention Rise the stability of device.The length of diversion pipe well 23 is longer than 80m, prevents 21 periphery level of ground water of pit shaft from declining, so as to cause ground Face collapses, and influences equipment safety and the personal safety as well as the property safety of user.Further, comprehensive safety and economic factor consider, draining The length of pipe well 22 and diversion pipe well 23 is preferably 100m~200m.

Claims (7)

1. a kind of shallow layer geothermal energy based on groundwater flow system utilizes device, including heat exchanger (10), cold in heat exchanger (10), The entrance of heat source is equipped with water inlet pipe (11), outlet is equipped with drainpipe (12), it is characterised in that: further includes that pit shaft (21) cylinder bottom is located at Heat exchange well (20) in water-bearing layer (A), water inlet pipe (11) extend to pit shaft (21) cylinder bottom, and the barrel of pit shaft (21) is equipped with draining The extending direction of pipe well (22), draining pipe well (22) is consistent with the seepage direction of water-bearing layer (A) interior water, drainpipe (12) and draining Pipe well (22) connection constitutes the heat-exchanging water emission path with the isolation of pit shaft (21) barrel chamber.
2. the shallow layer geothermal energy according to claim 1 based on groundwater flow system utilizes device, it is characterised in that: pit shaft (21) barrel is equipped with diversion pipe well (23), and diversion pipe well (23) is connected to the bottom cylinder of pit shaft (21), diversion pipe well (23) extending direction is opposite with the seepage direction of water-bearing layer (A) interior water.
3. the shallow layer geothermal energy according to claim 1 or 2 based on groundwater flow system utilizes device, it is characterised in that: Pit shaft (21) runs through two water-bearing layers (A) arranged up and down, be respectively disposed in two water-bearing layers (A) draining pipe well (22) and/ Or diversion pipe well (23).
4. the shallow layer geothermal energy according to claim 1 or 2 based on groundwater flow system utilizes device, it is characterised in that: Arranged for interval has multiple, the draining pipe well (22) of disposed adjacent in the horizontal plane for draining pipe well (22) and/or diversion pipe well (23) And/or diversion pipe well (23) angle arrangement.
5. the shallow layer geothermal energy according to claim 2 based on groundwater flow system utilizes device, it is characterised in that: diversion Pipe well (23) arranged for interval has multiple, and the well of diversion pipe well (23) is long and the diversion pipe well (23) with it arranges center in horizontal plane Interior spacing is negatively correlated.
6. the shallow layer geothermal energy according to claim 2 based on groundwater flow system utilizes device, it is characterised in that: draining The length of pipe well (22) and diversion pipe well (23) is longer than 80m.
7. the shallow layer geothermal energy according to claim 6 based on groundwater flow system utilizes device, it is characterised in that: draining The length of pipe well (22) and diversion pipe well (23) is 100m~200m.
CN201910194370.6A 2019-03-14 2019-03-14 Shallow layer geothermal energy based on groundwater flow system utilizes device Pending CN109798683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910194370.6A CN109798683A (en) 2019-03-14 2019-03-14 Shallow layer geothermal energy based on groundwater flow system utilizes device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910194370.6A CN109798683A (en) 2019-03-14 2019-03-14 Shallow layer geothermal energy based on groundwater flow system utilizes device

Publications (1)

Publication Number Publication Date
CN109798683A true CN109798683A (en) 2019-05-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110230895A (en) * 2019-06-21 2019-09-13 河南理工大学 Buried hiding GEOTHERMAL WATER the same well and layer takes out filling heat-source Cycles and utilizes system and working method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110230895A (en) * 2019-06-21 2019-09-13 河南理工大学 Buried hiding GEOTHERMAL WATER the same well and layer takes out filling heat-source Cycles and utilizes system and working method

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