CN110617653A - High-efficient heat transfer device of shallow layer soil source heat pump - Google Patents
High-efficient heat transfer device of shallow layer soil source heat pump Download PDFInfo
- Publication number
- CN110617653A CN110617653A CN201910887039.2A CN201910887039A CN110617653A CN 110617653 A CN110617653 A CN 110617653A CN 201910887039 A CN201910887039 A CN 201910887039A CN 110617653 A CN110617653 A CN 110617653A
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- China
- Prior art keywords
- wing
- pipe
- horizontal radiation
- layer horizontal
- heat exchange
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- 239000002689 soil Substances 0.000 title claims abstract description 30
- 239000010410 layer Substances 0.000 claims abstract description 81
- 230000005855 radiation Effects 0.000 claims abstract description 64
- 239000011229 interlayer Substances 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
- F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
- F24T10/15—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using bent tubes; using tubes assembled with connectors or with return headers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
-
- 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
Abstract
The invention relates to a high-efficiency heat exchange device of a shallow soil source heat pump, belonging to geothermal extraction equipment, comprising a heat exchange device, wherein the heat exchange device is formed by communicating a top layer horizontal radiation pipe wing with a middle layer horizontal radiation pipe wing through a first interlayer connecting short pipe, communicating the middle layer horizontal radiation pipe wing with a bottom layer horizontal radiation pipe wing through a second interlayer connecting short pipe, communicating an outlet of the bottom layer horizontal radiation pipe wing with one end of an M-shaped pipe wing, connecting the other end of the M-shaped pipe wing with an outlet pipe, communicating the top layer horizontal radiation pipe wing, the middle layer horizontal radiation pipe wing and the bottom layer horizontal radiation pipe wing by more than three horizontal U-shaped pipes, and connecting adjacent U-shaped pipes on the same layer pipe wing by arc-shaped short pipes. The high-efficiency heat exchange device of the shallow-layer soil source heat pump provided by the invention has the advantages that the control volume of heat source soil is enlarged, the heat exchange area is increased, the heat exchange time and the heat conductivity coefficient are increased, the heat absorption speed of fluid on the pipe wall is accelerated, the construction earth volume is reduced, and the heat conduction capability of the soil in the heat source is improved.
Description
Technical Field
The invention belongs to geothermal extraction equipment, and particularly relates to a high-efficiency heat exchange device of a shallow soil source heat pump.
Background
At present, global pollution, carbon dioxide emission and the like are the problems to be solved urgently all over the world, and international environmental protection agreements, such as the Kyoto protocol, the Paris agreement and other international environmental protection convention, are urgently to be implemented. Geothermal resources are one of the natural resources of the earth, are large in reserves, wide in distribution, mostly distributed along volcanic and seismic zones, are clean energy sources easy to utilize, and have wide application range, such as: compared with the traditional air conditioning system, the system efficiency can be improved by 40 percent under the condition of saving the operation cost by 40 percent. The utilization of geothermal resources does not discharge pollutants such as carbon dioxide, nitrogen oxide, dioxin and the like, and is environment-friendly clean energy. Therefore, the development and utilization of geothermal resources and the development of related technologies, processes and equipment have been paid high attention by governments and technicians and investors. However, the existing geothermal energy heat exchangers are generally of a vertical buried pipe type, a horizontal buried pipe type and a serpentine coil type, and have the following defects: the heat exchange area is small, and the heat exchange efficiency is low; the total volume of the heat source controlled soil is small, and the absorbed heat energy is less. How to efficiently take out underground heat energy and reinject the utilized waste heat into the underground for recycling is an important key technology for achieving high-efficiency and high-benefit operation in the geothermal industry.
Disclosure of Invention
The invention aims to provide a high-efficiency heat exchange device of a shallow layer soil source heat pump aiming at the defects in the background technology.
The invention relates to a high-efficiency heat exchange device of a shallow soil source heat pump, which comprises a heat exchange device, wherein the heat exchange device is formed by communicating a top layer horizontal radiation pipe wing with a middle layer horizontal radiation pipe wing through a first interlayer connecting short pipe, communicating a middle layer horizontal radiation pipe wing with a bottom layer horizontal radiation pipe wing through a second interlayer connecting short pipe, communicating an outlet of the bottom layer horizontal radiation pipe wing with one end of an M-shaped pipe wing, connecting the other end of the M-shaped pipe wing with an outlet pipe, communicating the top layer horizontal radiation pipe wing, the middle layer horizontal radiation pipe wing and the bottom layer horizontal radiation pipe wing by more than three horizontal U-shaped pipes, connecting adjacent U-shaped pipes on the same layer pipe wing by arc-shaped short pipes, and uniformly fixing flexible flow laths on the inner walls of the arc-shaped short pipes.
As a further improvement of the invention, the peripheries of the top layer horizontal radiation tube wing, the middle layer horizontal radiation tube wing and the bottom layer horizontal radiation tube wing are all provided with horizontal strong heat exchange plate wings, and the outer ends of the horizontal strong heat exchange plate wings are in a pointed triangle shape.
As a further improvement of the invention, a vertical wing plate is fixed outside the M-shaped pipe wing.
As a further improvement of the invention, the M-shaped tube wings are arranged in the inner circles of the top layer horizontal radiation tube wing, the middle layer horizontal radiation tube wing and the bottom layer horizontal radiation tube wing.
The high-efficiency heat exchange device of the shallow-layer soil source heat pump provided by the invention has the advantages that the control volume of heat source soil is enlarged, the heat exchange area is increased, the heat exchange time and the heat conductivity coefficient are increased, the heat absorption speed of fluid on the pipe wall is accelerated, the construction earth volume is reduced, and the heat conduction capability of the soil in the heat source is improved.
Drawings
FIG. 1 is a schematic longitudinal cross-sectional view of the structure of the present invention;
FIG. 2 is a top view cross section of a single layer horizontal radiant tube airfoil in an embodiment of the present invention;
FIG. 3 is a schematic view of a horizontal radiant tube fin in an embodiment of the present invention;
fig. 4 is a longitudinal sectional view of the M-shaped pipe fin 6 of the present invention.
Detailed Description
The efficient heat exchange device of the shallow soil source heat pump is further described with reference to fig. 1.
Example 1
The invention relates to a high-efficiency heat exchange device of a shallow soil source heat pump, which comprises a heat exchange device, wherein the heat exchange device is formed by communicating a top layer horizontal radiation pipe wing 1 with a middle layer horizontal radiation pipe wing 3 through a first interlayer connecting short-section pipe 2, communicating the middle layer horizontal radiation pipe wing 3 with a bottom layer horizontal radiation pipe wing 5 through a second interlayer connecting short-section pipe 4, communicating an outlet of the bottom layer horizontal radiation pipe wing 5 with one end of an M-shaped pipe wing 6, connecting the other end of the M-shaped pipe wing 6 with an outlet pipe 7, communicating the top layer horizontal radiation pipe wing 1, the middle layer horizontal radiation pipe wing 3 and the bottom layer horizontal radiation pipe wing 5 through more than three horizontal U-shaped pipes 8, connecting adjacent U-shaped pipes 8 on the same layer pipe wing through an arc-shaped short pipe 9, and uniformly distributing and fixing flow deflection plate strips 10 on the inner wall of the.
Example 2
The invention relates to a high-efficiency heat exchange device of a shallow soil source heat pump, which comprises a heat exchange device, wherein the heat exchange device is formed by a top layer horizontal radiation pipe wing 1 which is communicated with a middle layer horizontal radiation pipe wing 3 through a first interlayer connecting short-section pipe 2, the middle layer horizontal radiation pipe wing 3 is communicated with a bottom layer horizontal radiation pipe wing 5 through a second interlayer connecting short-section pipe 4, an outlet of the bottom layer horizontal radiation pipe wing 5 is communicated with one end of an M-shaped pipe wing 6, the other end of the M-shaped pipe wing 6 is connected with an outlet pipe 7, the top layer horizontal radiation pipe wing 1, the middle layer horizontal radiation pipe wing 3 and the bottom layer horizontal radiation pipe wing 5 are formed by locally arranging and communicating four horizontal U-shaped pipes 8, adjacent U-shaped pipes 8 on the same layer pipe wing are connected by an arc-shaped short pipe 9, and flow deflection plates 10 are uniformly distributed. The peripheries of the top layer horizontal radiation tube wing 1, the middle layer horizontal radiation tube wing 3 and the bottom layer horizontal radiation tube wing 5 are all provided with horizontal strong heat exchange plate wings 11, and the outer ends of the horizontal strong heat exchange plate wings 11 are in a pointed triangle shape. The outer part of the M-shaped pipe wing 6 is fixed with a vertical wing plate 12, and the M-shaped pipe wing 6 is arranged in the inner circles of the top layer horizontal radiation pipe wing 1, the middle layer horizontal radiation pipe wing 3 and the bottom layer horizontal radiation pipe wing 5.
According to the high-efficiency heat exchange device of the shallow soil source heat pump, the horizontal strong heat exchange plate wings 11 are welded on the U-shaped pipes 8, and the horizontal strong heat exchange plate wings at the end parts of the U-shaped pipes are in the shape of pointed triangles. The volume of the ground excavation is reduced, the construction amount is reduced, and the construction efficiency is improved. A plurality of groups (4-8 groups are suggested) of U-shaped pipes are uniformly distributed on the horizontal plane, and the control area of stratum heat exchange on the horizontal plane can be increased and the thermal power is improved by distributing a plurality of groups of horizontally radiating U-shaped pipes on different directions of the horizontal plane.
The adjacent horizontal radiation U-shaped pipes are connected by adopting the arc-shaped short pipes 9, a small number of flow-scratching plate strips 10 with a certain inclination angle are welded at the inner ports of the arc-shaped short pipes, the flow-scratching plate strips aim to change the laminar flow of hot fluid in the pipes into turbulent flow, the heat transfer mode in the fluid can be changed from a low-efficiency heat conduction mode into a high-heat-transfer-efficiency heat convection heat transfer mode, and the heat exchange power can be improved.
After operation and installation, a plurality of vertical M-shaped tube wings 6 can be installed in a deep well in a connecting mode to serve as a heat exchange plate. The vertical M-shaped pipe wing 6 is adopted in the deep well to facilitate vertical backfill of rock soil. M type pipe wing 6 can prolong the fluid and be detained the underground time, increases heat transfer time, and vertical pterygoid lamina 12 of welding on the M type pipe wing 6 can not only increase structural strength and place extrusion deformation when backfilling the ground, can also further increase heat transfer area.
The central areas of the top layer horizontal radiation pipe wing 1, the middle layer horizontal radiation pipe wing 3 and the bottom layer horizontal radiation pipe wing 5 are provided with a plurality of groups of M-shaped pipe wings 6, and a plurality of layers of horizontal radiation pipe wings are installed in shallow geothermal soil or rock soil.
The high-efficiency heat exchange device of the shallow soil source heat pump integrates the vertical buried pipe type, the horizontal buried pipe type and the serpentine coil pipe type, enlarges the control volume of heat source soil, improves the heat exchange area, increases the wing fins on the heat exchange pipe, increases the heat exchange time, allows heat-carrying fluid to flow underground for a long time, and increases the length of the coil pipe. The heat conductivity coefficient is increased, the turbulence generators, namely the flow deflecting plate strips 10, are arranged in the underground connection short-section pipes, so that heat-carrying fluid is changed from laminar flow to turbulent flow, the absorption speed of the fluid to pipe wall heat is accelerated, the construction earth volume is reduced, except for digging out an operation space in a central area, the outward extending U-shaped radiant tubes can be inserted into stratum soil in a hydraulic ejection mode, the central area is backfilled with waste soil materials with high heat conduction efficiency, such as waste iron chips, and the like, and the heat conduction capability in a soil heat source is improved.
The invention relates to a process flow of a shallow layer soil source heat pump efficient heat exchange device, which comprises the following steps: the low-temperature heat carrier fluid enters a first branch U-shaped pipe 8 in a top-layer horizontal radiant pipe wing 1 (A in the third figure is an inlet), then enters a turbulence generator connecting short pipe in front of a second branch U-shaped pipe 8 in the top-layer horizontal radiant pipe wing 1, is converted from laminar flow into turbulent flow, enters the second branch U-shaped pipe 8 in a turbulent flow state to absorb heat, in the first layer, the same analogy is carried out, the heat-carrying fluid enters the last group of U-shaped tubes in the first layer to absorb heat and then enters the first interlayer connecting short-section tube 2, and the short pipe is also internally provided with a flow deflecting lath 10, namely a turbulence generator, so that laminar flow is converted into turbulent flow to enter the first horizontal radiation U-shaped pipe of the next layer, and repeating the previous flow process, wherein the fluid flows through all the radiation U-shaped tubes on the lower horizontal plane and enters the connecting short tube with the turbulence generator, and the short tube connects the horizontal radiation U-shaped tube on the lowest layer with the M-shaped tube wing 6 on the outermost ring and enters the vertical W-shaped tube wing on the outermost ring to absorb heat. Into the connecting pipe of the generator with turbulence, which connects the M-shaped pipe wings 6 of the outer ring with the M-shaped pipe wings 6 of the inner ring. The heat-carrying fluid flows out of the heat exchanger and flows to ground users for heating, greenhouse planting, power generation, refrigeration and air conditioning and the like through an outlet pipe 7.
Claims (4)
1. A shallow layer soil source heat pump high-efficiency heat exchange device comprises a heat exchange device, and is characterized in that the heat exchange device is formed by a top layer horizontal radiation pipe wing (1) which is communicated with a middle layer horizontal radiation pipe wing (3) through a first interlayer connecting short-section pipe (2), the middle layer horizontal radiation pipe wing (3) is communicated with a bottom layer horizontal radiation pipe wing (5) through a second interlayer connecting short-section pipe (4), an outlet of the bottom layer horizontal radiation pipe wing (5) is communicated with one end of an M-shaped pipe wing (6), the other end of the M-shaped pipe wing (6) is connected with an outlet pipe (7), the top layer horizontal radiation pipe wing (1), the middle-layer horizontal radiant tube wing (3) and the bottom-layer horizontal radiant tube wing (5) are formed by communicating more than three horizontal U-shaped tubes (8), adjacent U-shaped tubes (8) on the same-layer tube wing are connected through arc-shaped short tubes (9), and flow-deflecting strips (10) are uniformly distributed and fixed on the inner walls of the arc-shaped short tubes (9).
2. The shallow-layer soil source heat pump high-efficiency heat exchange device as claimed in claim 1, characterized in that the peripheries of the top layer horizontal radiation tube wing (1), the middle layer horizontal radiation tube wing (3) and the bottom layer horizontal radiation tube wing (5) are all provided with a horizontal strong heat exchange plate wing (11), and the outer end of the horizontal strong heat exchange plate wing (11) is in a shape of a pointed triangle.
3. The high-efficiency heat exchange device of the shallow soil source heat pump as claimed in claim 1 or 2, wherein the vertical wing plates (12) are fixed outside the M-shaped pipe wing (6).
4. The shallow layer soil source heat pump high-efficiency heat exchange device as claimed in claim 1 or 2, characterized in that the M-shaped tube wing (6) is arranged in the inner circle of the top layer horizontal radiation tube wing (1), the middle layer horizontal radiation tube wing (3) and the bottom layer horizontal radiation tube wing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910887039.2A CN110617653A (en) | 2019-09-19 | 2019-09-19 | High-efficient heat transfer device of shallow layer soil source heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910887039.2A CN110617653A (en) | 2019-09-19 | 2019-09-19 | High-efficient heat transfer device of shallow layer soil source heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110617653A true CN110617653A (en) | 2019-12-27 |
Family
ID=68923680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910887039.2A Withdrawn CN110617653A (en) | 2019-09-19 | 2019-09-19 | High-efficient heat transfer device of shallow layer soil source heat pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN110617653A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008292044A (en) * | 2007-05-23 | 2008-12-04 | Sekisui Chem Co Ltd | Natural heat hybrid soil thermal storage system |
| JP2014115025A (en) * | 2012-12-11 | 2014-06-26 | Mitsui Home Co Ltd | Geothermal utilization heat exchange structure and heat pump system using the same |
| CN104121726A (en) * | 2013-04-24 | 2014-10-29 | 北京耐威徐激光技术开发有限责任公司 | Air-cooled water chiller |
| CN104154790A (en) * | 2014-08-15 | 2014-11-19 | 同度能源科技（江苏）股份有限公司 | Spiral flat pipe type buried pipe |
| CN208312751U (en) * | 2018-03-30 | 2019-01-01 | 浙江陆特能源科技股份有限公司 | Band rotation screw socket ground buried pipe of ground source heat pump |
| KR101948092B1 (en) * | 2018-08-14 | 2019-02-15 | 가진기업(주) | Geothermal system using underground heat exchanger with easy formation of turbulent flow and manufacturing method for underground heat exchanger |
| CN210638327U (en) * | 2019-09-19 | 2020-05-29 | 李福军 | High-efficient heat transfer device of shallow layer soil source heat pump |
-
2019
- 2019-09-19 CN CN201910887039.2A patent/CN110617653A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008292044A (en) * | 2007-05-23 | 2008-12-04 | Sekisui Chem Co Ltd | Natural heat hybrid soil thermal storage system |
| JP2014115025A (en) * | 2012-12-11 | 2014-06-26 | Mitsui Home Co Ltd | Geothermal utilization heat exchange structure and heat pump system using the same |
| CN104121726A (en) * | 2013-04-24 | 2014-10-29 | 北京耐威徐激光技术开发有限责任公司 | Air-cooled water chiller |
| CN104154790A (en) * | 2014-08-15 | 2014-11-19 | 同度能源科技（江苏）股份有限公司 | Spiral flat pipe type buried pipe |
| CN208312751U (en) * | 2018-03-30 | 2019-01-01 | 浙江陆特能源科技股份有限公司 | Band rotation screw socket ground buried pipe of ground source heat pump |
| KR101948092B1 (en) * | 2018-08-14 | 2019-02-15 | 가진기업(주) | Geothermal system using underground heat exchanger with easy formation of turbulent flow and manufacturing method for underground heat exchanger |
| CN210638327U (en) * | 2019-09-19 | 2020-05-29 | 李福军 | High-efficient heat transfer device of shallow layer soil source heat pump |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191227 |