CN106524544A - Energy tunnel inverted arch layer burying type ground temperature energy heat exchange system - Google Patents
Energy tunnel inverted arch layer burying type ground temperature energy heat exchange system Download PDFInfo
- Publication number
- CN106524544A CN106524544A CN201611164934.4A CN201611164934A CN106524544A CN 106524544 A CN106524544 A CN 106524544A CN 201611164934 A CN201611164934 A CN 201611164934A CN 106524544 A CN106524544 A CN 106524544A
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- Prior art keywords
- heat exchange
- layer
- inverted arch
- tunnel
- tunnel inverted
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Classifications
-
- 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
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- 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
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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
Abstract
The invention discloses an energy tunnel inverted arch layer burying type ground temperature energy heat exchange system. A tunnel comprises a pavement, a tunnel secondary lining and a tunnel inverted arch. The tunnel secondary lining is arranged above the pavement, and a backfill layer is arranged below the pavement. The backfill layer is located on the tunnel inverted arch. A heat exchange layer is arranged between the tunnel inverted arch and the backfill layer. A water inlet of the heat exchange layer communicates with a water supply pipe, and a water outlet of the heat exchange layer communicates with a water return pipe. The water supply pipe and the water return pipe are both connected with a user end or a heat pump to form a closed circulation pipeline. A waterproof layer is arranged above the heat exchange layer. The energy tunnel inverted arch layer burying type ground temperature energy heat exchange system good in applicability, higher in heat exchange efficiency and capable of saving cost and reducing the construction period is provided.
Description
Technical field
The present invention relates to tunnel surrounding field, the especially a kind of buried earth temperature energy hot exchange system of energy tunnel inverted arch layer.
Background technology
The soil moisture in the earth superficial layer hundreds of meters is in increasing trend with depth, and depth often increases by 100 meter temperature rises
High about 3-5 DEG C, about 40-50 DEG C of the ground temperature at 1000 meters of underground stores huge in the mountain tunnel country rock of buried depth hundreds of meters
Ground temperature energy.Existing tunnel surrounding ground temperature energy extractive technique has two kinds, and a kind of is directly to collect the GEOTHERMAL WATER in tunnel surrounding,
The technology belongs to passive extractive technique, but the technology is only applicable to the area of rich groundwater, little or without underground in groundwater run off
Cannot then apply in the area of water；Another is between tunnel double-lining and first lining to bury heat-exchange tube, by the heat transfer in pipe
The temperature difference between circulatory mediator and country rock extracts tunnel surrounding ground temperature energy, and the technology belongs to active extractive technique, not climate bar
Part is limited, but the technology needs extra laying heat exchange pipe, increases construction cost and construction period, heat-exchange tube tube wall heat conduction
Property is not good, causes the heat exchange efficiency of heat-exchange tube low.
The content of the invention
In order to overcome existing tunnel country rock ground temperature can passive extractive technique be not suitable for underground water and owe educating and agensis
Area, and active extractive technique needs to increase the difficult problem such as construction cost and construction period, the present invention provide a kind of applicability it is good,
Heat exchange efficiency is higher, cost-effective and saves the buried earth temperature energy hot exchange system of energy tunnel inverted arch layer of construction period.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of buried earth temperature energy hot exchange system of energy tunnel inverted arch layer, the tunnel includes road surface, tunnel double-lining and tunnel
Inverted arch, upper pavement surface are the tunnel double-lining, are backfill layer below road surface, and the backfill layer is located on the tunnel inverted arch,
Heat exchange layers are set between the tunnel inverted arch and backfill layer, the water inlet of the heat exchange layers is connected with feed pipe, the heat
The delivery port of switching layer is connected with return pipe, and the feed pipe and return pipe are connected to form closed circulation with user side or heat pump
Pipeline, arranges waterproof layer above the heat exchange layers.
Further, the waterproof layer is connected with the bottom surface of the backfill layer.
Further, sealing cut-off is set in the heat exchange layers, and the heat exchange layers are carried out point by the sealing cut-off
Area, each subregion connect to form closed circulation subsystem with respective feed pipe and return pipe respectively.
Preferably, one end of the sealing cut-off is provided with breach, separates adjacent subregion with sealing jaggy and mutually passes through
It is logical.
Further, the breach dislocation arrangement of adjacent sealing cut-off.Random length can be obtained by setting up breach quantity
Heat exchanger.
Further, filling seepy material in the heat exchange layers, can form pervious bed.
The backfill layer is light phase transition insulation coagulation soil backfill layer.
The two ends on the road surface are provided with water pipe ditch, and the feed pipe and return pipe are located in the water pipe ditch.
Lead between the water inlet and feed pipe of the heat exchange layers, before the delivery port of the heat exchange layers and return pipe
Cross connecting tube connection.
The present invention technology design be：In view of existing tunnel surrounding GEOTHERMAL WATER collects technology cannot be applied to tunnel road surface
The extraction of lower section country rock ground temperature energy, and laying heat exchange pipe can increase engineering-built cost and delay the difficult problems such as construction period,
The present invention proposes a kind of new ground temperature energy extractive technique.The technology performs one layer of heat exchange layers above tunnel inverted arch, and heat is handed over
Change, the circulating heat exchange system of closing is constituted with heat exchange layers using supply channel and water return pipeline, is led to
The circulation of fluid crossed in heat exchange layers extracts the ground temperature energy in tunnel surrounding.The transfer path and length of every group of heat-exchange system can be with
Obtained by arranging the various combination of sealing cut-off；Space between roadbed and inverted arch is backfilled by light phase transition thermal insulation concrete,
Reduce ground temperature to be lost in.
In each subregion of the heat exchange layers, the sealing positioned at both sides separates elongated arrangement, and is located at the cut-off of centre
One section of setting breach, separates adjacent subregion with sealing jaggy and is mutually communicated；The breach of sealing cut-off is set to staggeredly cloth
Put, set up the heat exchanger that breach quantity can obtain random length.
Beneficial effects of the present invention are mainly manifested in：By performing heat exchange layers above inverted arch, using in heat exchange layers
The heat transfer medium that circulates extract ground temperature energy below tunnel road surface in country rock, solve the quilt of traditional collection GEOTHERMAL WATER
Dynamic extractive technique cannot extract a difficult problem for ground temperature energy in country rock below tunnel road surface, and the system active recharge groundwater extracts tunnel
Ground temperature energy in country rock, the system belong to active extractive technique, and suitable exploitation is owed and educated and the tunnel ground temperature without underground water area
Can exploitation；Compared with the active extractive technique of traditional embedded heat-exchange tube system, in heat exchange layers to circulate water direct
The ground temperature energy in country rock is absorbed, heat exchange efficiency is higher.The system need not lay heat-exchange tube, save substantial amounts of construction cost,
The construction period is saved.
Description of the drawings
Cross-sectional views of the Fig. 1 for the buried earth temperature energy hot exchange system of energy tunnel inverted arch layer.
Fig. 2 is heat exchange layers plane outspread drawing.
Fig. 3 is confession, return pipe and water pump circulation line figure.
In figure, 1 is tunnel double-lining；2 is tunnel inverted arch；3 is heat exchange layers；4 is waterproof layer；5 are backfill layer；6 is road surface；7
For feed pipe；8 is return pipe；9 is connecting tube；10 is water inlet；11 is delivery port；12 is sealing barrier；13 is water pump；14 are
User side；15 is water pipe ditch.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
With reference to Fig. 1～Fig. 3, a kind of buried earth temperature energy hot exchange system of energy tunnel inverted arch layer, the tunnel include road surface 6,
Tunnel double-lining 1 and tunnel inverted arch 2, are the tunnel double-lining 1 above road surface 6, are backfill layer 5 below road surface 6, the backfill layer 5
On the tunnel inverted arch 2, heat exchange layers 3 are set between the tunnel inverted arch 2 and backfill layer 5, the heat exchange layers 3
Water inlet 10 is connected with feed pipe 7, and the delivery port 11 of the heat exchange layers 3 is connected with return pipe 8, the feed pipe 7 and backwater
Pipe 8 is connected to form closed circulation pipeline with user side or heat pump, and waterproof layer 4 is arranged above the heat exchange layers 3.
Further, the waterproof layer 4 is connected with the bottom surface of the backfill layer 5.
Further, sealing cut-off 12 is set in the heat exchange layers 3, and the heat exchange layers are entered by the sealing cut-off 12
Row subregion, each subregion connect to form closed circulation subsystem with respective feed pipe and return pipe respectively.
Preferably, one end of the sealing cut-off 12 is provided with breach, separates adjacent subregion with sealing jaggy mutual
Insertion.
Further, the breach dislocation arrangement of adjacent sealing cut-off.Random length can be obtained by setting up breach quantity
Heat exchanger.
Further, filling seepy material in the heat exchange layers 3, can form pervious bed.
The backfill layer 5 is light phase transition insulation coagulation soil backfill layer.
The two ends on the road surface 6 are provided with water pipe ditch 15, and the feed pipe 7 and return pipe 8 are located in the water pipe ditch 15.
Lead between the water inlet and feed pipe of the heat exchange layers, before the delivery port of the heat exchange layers and return pipe
Cross connecting tube 9 to connect.
The buried earth temperature energy hot exchange system of energy tunnel inverted arch layer of the present embodiment, the system by heat exchange layers, sealing every
Disconnected, waterproof layer, feed pipe, return pipe, light phase transition insulation backfill layer and water pump composition, heat exchange layers are located on tunnel inverted arch,
Waterproof layer is performed above heat exchange layers, the space between waterproof layer and road surface is by light phase transition insulation coagulation soil backfill；
Heat exchange layers are split using sealing cut-off, the heat exchange layers of each subregion are entered with feed pipe and return pipe respectively
Row connection forms closed cycle system；The heat exchanger of random length can be obtained by changing the combination between sealing cut-off；
Feed pipe and return pipe are connected the circulatory system to form closing with water pump.
The work progress of the buried earth temperature energy hot exchange system of energy tunnel inverted arch layer of the present embodiment is as follows：
Heat exchange layers are carried out subregion by 1. construction tunnel inverted arch, and the placement sealing cut-off on inverted arch；
2. heat exchange layers are performed；
3. feed pipe and return pipe are installed, and are attached with heat exchange layers respectively；
4. perform waterproof layer；
5. pour into a mould phase transformation lightweight insulating concrete；
6. perform subgrade and pavement layer；
7. feed pipe 7, return pipe 8 and user side 14 or heat pump are connected by water circulating pump 13, forms closed cycle system.
In actual applications, if ground temperature is higher, directly apply, i.e., be connected to be formed with user side by water circulating pump and follow
Endless tube road；If ground temperature is not high enough, it is impossible to directly utilize, then need heat-pump apparatus to be lifted, i.e. feed pipe and return pipe and heat pump
Connection forms circulation line.
Claims (8)
1. the buried earth temperature energy hot exchange system of a kind of energy tunnel inverted arch layer, the tunnel includes that road surface, tunnel double-lining and tunnel are faced upward
Arch, upper pavement surface are the tunnel double-lining, are backfill layer below road surface, and the backfill layer is located on the tunnel inverted arch, and which is special
Levy and be：Heat exchange layers are set between the tunnel inverted arch and backfill layer, and water inlet and the feed pipe of the heat exchange layers connect
Logical, the delivery port of the heat exchange layers is connected with return pipe, and the feed pipe and return pipe are connected shape with user side or heat pump
Into closed circulation pipeline, waterproof layer is set above the heat exchange layers.
2. the buried earth temperature energy hot exchange system of energy tunnel inverted arch layer as claimed in claim 1, it is characterised in that：The waterproof
Layer is connected with the bottom surface of the backfill layer.
3. the buried earth temperature energy hot exchange system of energy tunnel inverted arch layer as claimed in claim 1 or 2, it is characterised in that：It is described
Sealing cut-off is set in heat exchange layers, and the heat exchange layers are carried out subregion by the sealing cut-off, each subregion respectively with each
Feed pipe connect to form closed circulation subsystem with return pipe.
4. the buried earth temperature energy hot exchange system of energy tunnel inverted arch layer as claimed in claim 3, it is characterised in that：The sealing
One end of cut-off is provided with breach, separates adjacent subregion with sealing jaggy and is mutually communicated.
5. the buried earth temperature energy hot exchange system of energy tunnel inverted arch layer as claimed in claim 1 or 2, it is characterised in that：It is adjacent
The breach dislocation arrangement of sealing cut-off.
6. the buried earth temperature energy hot exchange system of energy tunnel inverted arch layer as claimed in claim 1 or 2, it is characterised in that：It is described
Filling seepy material in heat exchange layers.
7. the buried earth temperature energy hot exchange system of energy tunnel inverted arch layer as claimed in claim 1 or 2, it is characterised in that：It is described
The two ends on road surface are provided with water pipe ditch, and the feed pipe and return pipe are located in the water pipe ditch.
8. the buried earth temperature energy hot exchange system of energy tunnel inverted arch layer as claimed in claim 1 or 2, it is characterised in that：It is described
Connected by connecting tube between the water inlet and feed pipe of heat exchange layers, between the delivery port of the heat exchange layers and return pipe
It is logical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611164934.4A CN106524544A (en) | 2016-12-16 | 2016-12-16 | Energy tunnel inverted arch layer burying type ground temperature energy heat exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611164934.4A CN106524544A (en) | 2016-12-16 | 2016-12-16 | Energy tunnel inverted arch layer burying type ground temperature energy heat exchange system |
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| CN106524544A true CN106524544A (en) | 2017-03-22 |
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| CN201611164934.4A Pending CN106524544A (en) | 2016-12-16 | 2016-12-16 | Energy tunnel inverted arch layer burying type ground temperature energy heat exchange system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319622A (en) * | 2019-05-15 | 2019-10-11 | 宁波工程学院 | High thermal conductivity earth temperature energy hot switching tunnel system and its construction method |
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| CN101672189A (en) * | 2009-09-23 | 2010-03-17 | 同济大学 | Ground source heat pump type heating system used for heat insulating ditch in tunnel |
| CN201810321U (en) * | 2010-06-28 | 2011-04-27 | 中铁二十局集团有限公司 | Composite heat insulation lining structure of plateau frozen earth tunnel |
| JP2011117171A (en) * | 2009-12-02 | 2011-06-16 | Mitsubishi Materials Techno Corp | Tunnel construction method and heat exchange passage fixing implement therefor |
| CN102322276A (en) * | 2011-09-23 | 2012-01-18 | 厦门市路桥咨询监理有限公司 | Tunneling engineering freeze-proofing structure in seasonally frozen ground region |
| CN103835725A (en) * | 2014-03-05 | 2014-06-04 | 东南大学 | Antifreezing and insulating tunnel in cold region |
| CN204627619U (en) * | 2015-01-16 | 2015-09-09 | 重庆科技学院 | Tunnel frost damage prevention system |
| CN206420175U (en) * | 2016-12-16 | 2017-08-18 | 绍兴文理学院 | The buried earth temperature energy hot switch of energy tunnel inverted arch layer |
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2016
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007107288A (en) * | 2005-10-14 | 2007-04-26 | Mitsubishi Materials Natural Resources Development Corp | Tunnel heat exchange panel and heat exchange system utilizing tunnel heat |
| CN101672189A (en) * | 2009-09-23 | 2010-03-17 | 同济大学 | Ground source heat pump type heating system used for heat insulating ditch in tunnel |
| JP2011117171A (en) * | 2009-12-02 | 2011-06-16 | Mitsubishi Materials Techno Corp | Tunnel construction method and heat exchange passage fixing implement therefor |
| CN201810321U (en) * | 2010-06-28 | 2011-04-27 | 中铁二十局集团有限公司 | Composite heat insulation lining structure of plateau frozen earth tunnel |
| CN102322276A (en) * | 2011-09-23 | 2012-01-18 | 厦门市路桥咨询监理有限公司 | Tunneling engineering freeze-proofing structure in seasonally frozen ground region |
| CN103835725A (en) * | 2014-03-05 | 2014-06-04 | 东南大学 | Antifreezing and insulating tunnel in cold region |
| CN204627619U (en) * | 2015-01-16 | 2015-09-09 | 重庆科技学院 | Tunnel frost damage prevention system |
| CN206420175U (en) * | 2016-12-16 | 2017-08-18 | 绍兴文理学院 | The buried earth temperature energy hot switch of energy tunnel inverted arch layer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110319622A (en) * | 2019-05-15 | 2019-10-11 | 宁波工程学院 | High thermal conductivity earth temperature energy hot switching tunnel system and its construction method |
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Application publication date: 20170322 |
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