CN105627605B - Supply a center return pipe vertical buried pipe heat exchanger more - Google Patents
Supply a center return pipe vertical buried pipe heat exchanger more Download PDFInfo
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- CN105627605B CN105627605B CN201610017153.6A CN201610017153A CN105627605B CN 105627605 B CN105627605 B CN 105627605B CN 201610017153 A CN201610017153 A CN 201610017153A CN 105627605 B CN105627605 B CN 105627605B
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
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Abstract
A center return pipe vertical buried pipe heat exchanger is supplied the invention discloses a kind of for earth-source hot-pump system more.Heat exchanger includes more vertical water supply branch pipes and a vertical return；Return pipe is incubated with coaxial tube-in-tube, and is isolated between outer layer sleeve every 3~5m with casing clamp；More water supply branch pipes are evenly distributed on around tube-in-tube, and water supply branch tube hub is on return pipe concentric circles；Water supply branch pipe, return pipe and sleeve pipe are connected with the water supply straight tube on the cylindricality joint of bottom, backwater straight tube and sleeve pipe straight tube with supporting electro-fusion sleeve respectively.The present invention improves unit well depth heat exchange amount；Stabilized structure, it is easy to construct, disposably can be put into wellhole；Bottom cylindricality joint bearing capacity is stronger, is hardly damaged；Return pipe is incubated with tube-in-tube, the phenomenon that common heat-insulation layer is drenched and failed when effectively prevent construction, while it also avoid the heat exchange of the hot short circuit phenomenon and return pipe and saturation heat exchange interlayer supplied between return pipe, is improved heat exchange efficiency, is reduced initial cost.
Description
Technical field
The present invention relates to the ground heat exchanger in a kind of earth-source hot-pump system, and in particular to a kind of more for a center time
Water pipe vertical buried pipe heat exchanger.
Background technology
Vertical buried pipe earth-source hot-pump system is due to few with taking up an area, and the advantages that stable work in work, receives extensive concern.
Single U, the double U underground heat exchangers often used in engineering at present, unit well depth heat exchange amount is small, and for heat between return pipe be present
Short circuit phenomenon, make thermal loss, be unfavorable for exchanging heat.In order to meet heat exchange demand, generally only more well-digging holes, not only increase and account for
Ground area, also the initial cost of earth-source hot-pump system is greatly increased, hinder the popularization and application of earth-source hot-pump system.Therefore,
In order to increase unit well depth heat exchange amount, heat exchanger performance is improved, and reduces initial cost, saves floor space it is necessary to existing
Buried tube heat exchanger form and structure reasonably optimized, make earth source heat pump obtain preferably promote and development.
The content of the invention
The present invention is intended to provide it is a kind of it is simple in construction, that heat exchange efficiency is high, easy construction, initial cost are relatively low is more in one time
Heart return pipe vertical buried pipe heat exchanger.
A center return pipe vertical buried pipe heat exchanger is supplied the invention provides one kind more, including joint, water supply branch pipe, is returned
Water pipe and sleeve pipe, joint are located at exchanger base, including charge for remittance device, water supply straight tube, backwater straight tube, sleeve pipe straight tube and reinforcement
Plate, charge for remittance device top are cylindrical structure, and bottom is conical structure；Portion is provided with more vertical water supply branch pipes and one on heat exchangers
Root vertical return；Return pipe forms coaxial tube-in-tube with the sleeve pipe on the outside of it, in vertical direction between return pipe and outer layer sleeve
On isolated every 3~5m with pipe clamp；The center of circle of return pipe and the center superposition of heat exchanger, more water supply branch pipes are evenly distributed on together
Around central siphon middle pipe, water supply branch pipe is centrally located on the concentric circles of return pipe；Water supply branch pipe, return pipe and the sleeve pipe point
Do not connected with the water supply straight tube on the cylindricality joint of exchanger base, backwater straight tube and sleeve pipe straight tube by supporting electro-fusion sleeve
Connect；More water supply branch pipe in the vertical directions use the locking position of injection molding tube at 3~5m scopes, it is kept solid in wellhole
Determining deviation.
In such scheme, the vertical water supply branch pipe is provided with 2 ~ 6, and the confession of identical quantity is provided with the cylindricality joint of bottom
Water straight tube.
In such scheme, the return pipe is incubated using tube-in-tube, and heat preserving mode is tube-in-tube vacuum heat-insulating layer, tube-in-tube
Rubber and plastic thermal insulation layer, tube-in-tube air heat-insulation layer or tube-in-tube vacuum layer low-radiation film are incubated any.
Beneficial effects of the present invention：
（1）The spacing of adjacent feed pipe is suitable, is fully contacted with banketing, and reduces heat interference between feed pipe, increases unit
Well depth heat exchange amount, improve the heat exchange property of buried tube heat exchanger, reduce drilling hole number, save floor space --- in city
The premise of popularization and application；
（2）Return pipe is incubated using tube-in-tube, and common heat-insulation layer is drenched and failed when effectively prevent construction
Phenomenon, while the heat exchange of the hot short circuit phenomenon and return pipe and saturation heat exchange interlayer supplied between return pipe is also avoided, greatly improve
Heat exchange efficiency, and more return pipes are replaced using return pipe, save heat exchanger cost；
（3）Feed pipe is connected as a single entity with return pipe by cylindricality joint, and feed pipe is locking every 3~5m length injection molding tubes
Behind position, stabilized structure, disposably it can be put into wellhole, it is simple to operate, it is easy for construction, reduce construction workload；
（4）Bottom cylindricality joint bearing capacity is strong, less damaged, adds the service life of earth source heat pump, improves
The economic benefit of earth source heat pump, it is set to be more easy to promote.
Brief description of the drawings
Fig. 1 is two dimensional structure diagrams for a center return pipe vertical buried pipe heat exchanger.
Fig. 2 is two for a center return pipe vertical buried pipe heat exchanger main structure diagram.
Fig. 3 is Fig. 2 left view.
Fig. 4 is Fig. 2 sectional view.
Fig. 5 is three dimensional structure diagrams for a center return pipe vertical buried pipe heat exchanger.
Fig. 6 is three for a center return pipe vertical buried pipe heat exchanger main structure diagram.
Fig. 7 is Fig. 6 left view.
Fig. 8 is Fig. 6 sectional view.
Fig. 9 is four dimensional structure diagrams for a center return pipe vertical buried pipe heat exchanger.
Figure 10 is four for a center return pipe vertical buried pipe heat exchanger main structure diagram.
Figure 11 is Figure 10 sectional view.
In figure, 1- charge for remittance devices；2- water supply straight tubes；3- feed pipe electro-fusion sleeves；4- water supply branch pipes；5- backwater straight tubes；6- is returned
Water pipe electro-fusion sleeve；7- return pipes；8- sleeve pipe straight tubes；9- sleeve pipe electro-fusion sleeves；10- sleeve pipes；11- stiffener plates；12- pipe clamps.
Embodiment
The present invention is further illustrated below by embodiment, but is not limited to following examples.
Embodiment 1：
The present embodiment provides one kind two and supplies a center return pipe vertical buried pipe heat exchanger.
As shown in Fig. 1 ~ 4, vertical water supply branch pipe is provided with 2, and the water supply provided with identical quantity is straight on the cylindricality joint of bottom
Pipe.
Heat exchanger include charge for remittance device 1 and water supply straight tube 2, backwater straight tube 5, sleeve pipe straight tube 8, water supply branch pipe 4, return pipe 7,
Sleeve pipe 10, stiffener plate 11, charge for remittance device 1 are located at exchanger base, and the top of charge for remittance device 1 is cylindrical structure, and bottom is cone knot
Structure；Portion is provided with two vertical water supply branch pipes 4 and a vertical return 7 on heat exchangers；Return pipe 7 and the sleeve pipe 10 on the outside of it
Coaxial tube-in-tube is formed, 10 in the vertical directions of return pipe 7 and outer layer sleeve are isolated every 3m pipe clamps 12；Return pipe 7
The center of circle and the center superposition of heat exchanger, two water supply branch pipes 4 are evenly distributed on around coaxial tube-in-tube, in two water supply branch pipes
The heart is in 180 ° with the return pipe line of centres, and water supply branch pipe 4 is centrally located on the concentric circles of return pipe 7；The water supply branch pipe 4,
Return pipe 7 and sleeve pipe 10 are logical with the water supply straight tube 2 on the cylindricality joint of exchanger base, backwater straight tube 5 and sleeve pipe straight tube 8 respectively
Cross supporting electro-fusion sleeve connection：The lower end of water supply branch pipe 4 connection feed pipe electro-fusion sleeve 3, the lower end of return pipe 7 connect back to water pipe electric
Molten sleeve pipe 6, the lower end connection sleeve pipe electro-fusion sleeve 9 of sleeve pipe 10；Two water supply branch pipe in the vertical directions use at 3m scopes
The locking position of injection molding tube, makes it keep constant spacing in wellhole, so that two supply a center return pipe vertical buried pipe heat exchanger
As an entirety.Because vertical buried pipe heat exchanger physical length is 10~200m, to prevent heat exchanger from deforming, using injection pipe clamp
Positioning.
Stiffener plate 11 is used to connect water supply straight tube and sleeve pipe straight tube, makes on joint that structure is steady between water supply straight tube and sleeve pipe
Gu.
The return pipe is incubated using tube-in-tube, and heat preserving mode is tube-in-tube vacuum heat-insulating layer.
The radius ratio of return pipe 7 and sleeve pipe 10 is 2：1~3:1.Water supply branch pipe, return pipe can select as needed in engineering
Different calibers, and return pipe caliber is identical or bigger with feed pipe caliber.
Specific installation and operating method are：
Before two are put into wellhole construction for a center return pipe vertical buried pipe heat exchangers, first by return pipe every 3~
5m sets thermal insulation casing in pipe clamp rear enclosure, forms tube-in-tube air heat-insulation layer；Secondly will water supply branch pipe, a center backwater vertically
Pipe, thermal insulation casing respectively the water supply straight tube, backwater straight tube, sleeve pipe straight tube with bottom cylindricality joint respectively with supporting electro-fusion sleeve
Connection；Again to water supply branch pipe every the locking position of 3m length injection molding tubes, so that whole how vertical for a center return pipe
Buried tube heat exchanger turns into an entirety；Then heat exchanger overall time is placed into wellhole, and brill is filled up with backfilling material
Well；Then again to being sealed outside well at the top of tube-in-tube air heat-insulation layer after, air heat-insulation layer is vacuumized, it is true to form tube-in-tube
Dead level is incubated；Finally, water supply branch pipe, return pipe are connected with water knockout drum, water collector respectively, access earth-source hot-pump system main frame.
Embodiment 2：
The present embodiment provides one kind three and supplies a center return pipe vertical buried pipe heat exchanger.
As shown in Fig. 5 ~ 8, vertical water supply branch pipe is provided with 3, and the water supply provided with identical quantity is straight on the cylindricality joint of bottom
Pipe.
Heat exchanger include charge for remittance device 1 and water supply straight tube 2, backwater straight tube 5, sleeve pipe straight tube 8, water supply branch pipe 4, return pipe 7,
Sleeve pipe 10, stiffener plate 11, charge for remittance device 1 are located at exchanger base, and the top of charge for remittance device 1 is cylindrical structure, and bottom is cone knot
Structure；Portion is provided with three vertical water supply branch pipes 4 and a vertical return 7 on heat exchangers；The center of circle of return pipe 7 and heat exchanger
Center superposition, three water supply branch pipes 4 are evenly distributed on around coaxial tube-in-tube, three water supply branch tube hubs and backwater tube hub
Line is in 120 °, and water supply branch pipe 4 is centrally located on the concentric circles of return pipe 7；The water supply branch pipe 4, return pipe 7 and sleeve pipe 10
Pass through supporting electric smelting set with the water supply straight tube 2 on the cylindricality joint of exchanger base, backwater straight tube 5 and sleeve pipe straight tube 8 respectively
Pipe connects：The lower end of water supply branch pipe 4 connection feed pipe electro-fusion sleeve 3, the lower end of return pipe 7 connect back to water pipe electro-fusion sleeve 6, sleeve pipe 10
Lower end connection sleeve pipe electro-fusion sleeve 9；Three water supply branch pipe in the vertical directions use the locking position of injection molding tube at 4m scopes, make
It keeps constant spacing in wellhole, so that three turn into an entirety for a center return pipe vertical buried pipe heat exchanger.
The installation of the present embodiment and operating method are the same as embodiment 1.
Embodiment 3：
The present embodiment provides one kind four and supplies a center return pipe vertical buried pipe heat exchanger.
As shown in Fig. 9 ~ 11, vertical water supply branch pipe is provided with 4, and the water supply provided with identical quantity is straight on the cylindricality joint of bottom
Pipe.
Heat exchanger include charge for remittance device 1 and water supply straight tube 2, backwater straight tube 5, sleeve pipe straight tube 8, water supply branch pipe 4, return pipe 7,
Sleeve pipe 10, stiffener plate 11, charge for remittance device 1 are located at exchanger base, and the top of charge for remittance device 1 is cylindrical structure, and bottom is cone knot
Structure；Portion is provided with four vertical water supply branch pipes 4 and a vertical return 7 on heat exchangers；The center of circle of return pipe 7 and heat exchanger
Center superposition, four water supply branch pipes 4 are evenly distributed on around coaxial tube-in-tube, four water supply branch tube hubs and backwater tube hub
Line is in 90 °, and water supply branch pipe 4 is centrally located on the concentric circles of return pipe 7；The water supply branch pipe 4, return pipe 7 and sleeve pipe 10
Pass through supporting electric smelting set with the water supply straight tube 2 on the cylindricality joint of exchanger base, backwater straight tube 5 and sleeve pipe straight tube 8 respectively
Pipe connects：The lower end of water supply branch pipe 4 connection feed pipe electro-fusion sleeve 3, the lower end of return pipe 7 connect back to water pipe electro-fusion sleeve 6, sleeve pipe 10
Lower end connection sleeve pipe electro-fusion sleeve 9；Four water supply branch pipe in the vertical directions use the locking position of injection molding tube at 5m scopes, make
It keeps constant spacing in wellhole, so that four turn into an entirety for a center return pipe vertical buried pipe heat exchanger.
The installation of the present embodiment and operating method are the same as embodiment 1.
Claims (3)
1. a kind of supply a center return pipe vertical buried pipe heat exchanger more, it is characterised in that：Heat exchanger includes joint, supply water branch
Pipe, return pipe and sleeve pipe, joint be located at exchanger base, including charge for remittance device, water supply straight tube, backwater straight tube, sleeve pipe straight tube and plus
Strengthening tendons plate, charge for remittance device top are cylindrical structure, and bottom is conical structure；Portion is provided with more vertical water supply branch pipes on heat exchangers
With a vertical return；Return pipe forms coaxial tube-in-tube thermal insulation casing with the sleeve pipe on the outside of it, and heat preserving mode is tube-in-tube
Vacuum heat-insulating layer is incubated, and in the vertical direction is isolated every 3~5m with pipe clamp between return pipe and outer layer sleeve；The center of circle of return pipe
With the center superposition of heat exchanger, more water supply branch pipes are evenly distributed on around coaxial tube-in-tube, and water supply branch pipe is centrally located at
On the concentric circles of return pipe；Water supply branch pipe, return pipe and the sleeve pipe respectively with the water supply on the cylindricality joint of exchanger base
Straight tube, backwater straight tube and sleeve pipe straight tube are connected by supporting electro-fusion sleeve；More water supply branch pipe in the vertical directions every 3~
The locking position of injection molding tube is used at 5m scopes, it is kept constant spacing in wellhole；Stiffener plate is connected to water supply straight tube and set
Between pipe straight tube, for consolidating the structure between water supply straight tube and sleeve pipe straight tube.
2. according to claim 1 supply a center return pipe vertical buried pipe heat exchanger more, it is characterised in that：It is described vertical
Water supply branch pipe is provided with 2 ~ 6, and the water supply straight tube of identical quantity is provided with the cylindricality joint of bottom.
3. according to claim 1 supply a center return pipe vertical buried pipe heat exchanger more, it is characterised in that：The backwater
Pipe is incubated using tube-in-tube, and heat preserving mode also includes tube-in-tube rubber and plastic thermal insulation layer, tube-in-tube air heat-insulation layer or tube-in-tube vacuum
Layer low-radiation film is incubated any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610017153.6A CN105627605B (en) | 2016-01-12 | 2016-01-12 | Supply a center return pipe vertical buried pipe heat exchanger more |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610017153.6A CN105627605B (en) | 2016-01-12 | 2016-01-12 | Supply a center return pipe vertical buried pipe heat exchanger more |
Publications (2)
| Publication Number | Publication Date |
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| CN105627605A CN105627605A (en) | 2016-06-01 |
| CN105627605B true CN105627605B (en) | 2018-04-03 |
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| CN201610017153.6A Active CN105627605B (en) | 2016-01-12 | 2016-01-12 | Supply a center return pipe vertical buried pipe heat exchanger more |
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| JP6299626B2 (en) * | 2015-02-25 | 2018-03-28 | 株式会社オンダ製作所 | Heat-sealing joint |
| JP6598021B2 (en) * | 2016-02-04 | 2019-10-30 | 株式会社オンダ製作所 | Heat-sealing joint |
| CN111578543A (en) * | 2020-05-28 | 2020-08-25 | 山东建筑大学 | Middle-deep sleeve type geothermal heat exchanger device containing radiation heat insulation film |
| CN113587464B (en) * | 2021-06-30 | 2023-05-23 | 北京市地质工程勘察院 | Open coaxial sleeve heat exchange system of geothermal well |
| EP4317833A1 (en) * | 2022-08-01 | 2024-02-07 | Universitat Politècnica de València | Piping for adapted thermal conductivity |
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Effective date of registration: 20220629 Address after: 030001 room 803, 8th floor, Shuilong Shanda building, No. 128 Pingyang Road, Xiaodian District, Taiyuan City, Shanxi Province Patentee after: TAIYUAN ZHIBO THERMAL POWER ENGINEERING DESIGN Co.,Ltd. Address before: 030024 No. 79 West Main Street, Wan Berlin District, Shanxi, Taiyuan, Yingze Patentee before: Taiyuan University of Technology |