CN105972844A - Hot dry rock heat transfer device and heat transfer method - Google Patents
Hot dry rock heat transfer device and heat transfer method Download PDFInfo
- Publication number
- CN105972844A CN105972844A CN201610482112.4A CN201610482112A CN105972844A CN 105972844 A CN105972844 A CN 105972844A CN 201610482112 A CN201610482112 A CN 201610482112A CN 105972844 A CN105972844 A CN 105972844A
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- China
- Prior art keywords
- heat
- insulating tube
- heat transfer
- pipe
- dry rock
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- 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.)
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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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T2010/50—Component parts, details or accessories
- F24T2010/53—Methods for installation
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a hot dry rock heat transfer device and a heat transfer method. The device comprise a main heat transfer pipe and a thermal insulation pipe which enwraps the main heat transfer pipe, wherein the main heat transfer pipe comprises a plurality of heat pipe beams which are in serial connection and the heat pipe beams are a plurality of heat pipes which are arranged in parallel. The method comprises the following steps: (1) drilling out a heat obtaining hole from the ground to the hot dry rock layer; (2) placing the hot dry rock heat transfer device into the heat obtaining hole. The existing heat pipe technology is adopted, the heat pipes are collected into one heat pipe beam, the heat pipe beam is serially connected into the main heat transfer pipe, the main heat transfer pipe has the strong heat conductivity capacity of the heat pipes, so that the heat transfer efficiency is high, and meanwhile the main heat transfer pipe can be produced to be as long as possible, and has relatively good flexibility, and can be conveniently placed into the very deep hot dry rock layer, so that the heat from the hot dry rock layer can be well extracted to the ground.
Description
Technical field
The present invention relates to a kind of hot dry rock heat transfer equipment and conduction of heat method.
Background technology
Hot dry rock (HDR), also referred to as enhancement mode geothermal system (EGS), or claim Engineering-type geothermal system, it is that general temperature is more than
200 DEG C, the thousands of rice of buried depth, there is not fluid or the high heat rock mass of the most a small amount of underground fluid in inside.The composition of this rock mass can
Very big with change, the middle acidity since the overwhelming majority is Mesozoic Era invades Ren Yan, it may also be the metamorphic rock of Middle Cenozoic,
The block sedimentary rock that even thickness is huge.Hot dry rock is mainly used to extract its internal heat, therefore its main industry
Index is the temperature within rock mass.
The principle of exploitation hot dry rock resource is to beat a well (injection well), to well after closing wellhole from earth's surface toward hot dry rock
The water that mesohigh implantation temperature is relatively low, creates the highest pressure.In the case of rock mass densification is without crack, water under high pressure can make
The direction of the substantially vertical minimally stress of rock mass produces many cracks.If natively there being a small amount of natural joint in rock mass, these are high
Setting-out is allowed to be expanded into bigger crack.Certainly, the direction in these cracks to be affected by crustal stress system.Along with water at low temperature
Constantly injecting, crack is continuously increased, expands, and is interconnected, and ultimately forms a substantially artificial hot dry rock heat in planar
Storage structure (Fig. 1).Boring several mouthfuls of wells through artificial reservoir structure away from the injection rational position of well, these wells are used for reclaiming height
Warm water, vapour, referred to as producing well.The water injected move along crack and with the rock generation heat exchange of periphery, create temperature
The high-temperature high pressure water of up to 200-300 DEG C or gas-vapor mix.From the producing well of through artificial reservoir structure, extract high temperature steam
Vapour, for geothermal power generation and comprehensive utilization.Warm water after utilization recharges in hot dry rock further through injecting well, thus reaches to follow
The purpose that ring utilizes.
Above-mentioned hot dry rock heat transmission method is relatively costly, and heat transfer efficiency is low.
Summary of the invention
Present invention solves the technical problem that and be: provide the hot dry rock heat transfer equipment that a kind of heat transfer efficiency is high, the present invention is also
A kind of hot dry rock conduction of heat method that heat transfer efficiency is high is provided.
In order to solve above-mentioned technical problem, the present invention includes main heat-transfer pipe and the insulating tube wrapped in outside main heat-transfer pipe, main biography
Heat pipe includes the heat pipe bundle of multi-stage series, and heat pipe bundle is multiple heat pipes being arranged side by side.
In order to improve heat-transfer effect, between described adjacent heat tube bank, accompany soft heat-conducting medium layer.
In order to prevent heat pipe from spilling from the lower end of insulating tube, the lower port of described insulating tube is provided with web plate.
For the ease of the application heat that extracted of the present invention, the upper port of described insulating tube connect have for main heat transfer
The heat exchanger of the upper end heat exchange of pipe.
Hot dry rock conduction of heat method of the present invention, comprises the steps: that (1) drills through hot hole, gets into xeothermic rock stratum from ground；
(2) hot hole is transferred hot dry rock heat transfer equipment to taking: (2-1) takes many insulating tubes, solid in the lower port of first insulating tube
Surely web plate is gone up；(2-2) in first insulating tube, heat pipe bundle and soft heat-conducting medium layer are alternately transferred until by first insulation
Pipe fills up, and is put into by first insulating tube and takes hot hole；(2-3) insulating tube is taken the most again with upper insulating tube insulation even
Connect；Heat pipe bundle and soft heat-conducting medium layer is alternately transferred until being filled up by this insulating tube in the insulating tube newly taken, then by this guarantor
Temperature pipe is put into and is taken hot hole；(2-4) repetitive operation step (2-3) is until to taking bottom hot hole under web plate.
The heat extracted for the ease of the application present invention, hot dry rock conduction of heat method of the present invention, also include that step (3) exists
The upper port of insulating tube is connected to the heat exchanger of the upper end heat exchange with main heat-transfer pipe.
The invention has the beneficial effects as follows: the present invention utilizes existing hot pipe technique, by numerous integrated heat pipes of heat pipe
Bundle, then heat pipe bundle is connected into main heat-transfer pipe, possess the strong capacity of heat transmission of heat pipe so that heat transfer efficiency is high, makes winner pass simultaneously
Heat pipe can be made the longest, and has preferable flexibility, it is simple to transfers to the xeothermic rock stratum that the degree of depth is the deepest, it is thus possible to very
Good by the heat extraction of hot dry rock to ground.And main heat-transfer pipe is the damage of integrated by numerous heat pipes, a small amount of heat pipe
The bad use having no substantial effect on entirety, service life is longer.
Accompanying drawing explanation
Fig. 1 is the structural representation of the specific embodiment of the invention 1；
Fig. 2 is the A-A profile of Fig. 1；
Fig. 3 is the structural representation of the specific embodiment of the invention 2；
In figure: 1, insulating tube, 2, heat pipe, 3, soft heat-conducting medium layer, 4, web plate, 5, heat exchanger.
Detailed description of the invention
Specific embodiment one
Hot dry rock heat transfer equipment as depicted in figs. 1 and 2, it includes main heat-transfer pipe and the insulating tube 1 wrapped in outside main heat-transfer pipe,
Main heat-transfer pipe includes the heat pipe bundle of multi-stage series, and heat pipe bundle is multiple heat pipes 2 being arranged side by side.Accompany soft between adjacent heat tube bank
Matter heat-conducting medium layer 3.The lower port of insulating tube 1 is provided with web plate 4.
Specific embodiment two
As it is shown on figure 3, this example adds heat exchanger 5 on the basis of example one, it is simple to the heat extracted from hot dry rock is applied to raw
Live or produce.Heat exchanger 5 is connected to the upper port of insulating tube 1, for the upper end heat exchange with main heat-transfer pipe.
Hot dry rock conduction of heat method, uses the hot dry rock heat transfer equipment shown in Fig. 3, and described conduction of heat method includes as follows
Step: (1) drills through hot hole, gets into xeothermic rock stratum from ground；(2) hot hole is transferred hot dry rock heat transfer equipment to taking: (2-1) takes
Many insulating tubes 1, web plate 4 on the lower port of first insulating tube is fixing；(2-2) the most lower heat release in first insulating tube
First insulating tube 1, until being filled up by first insulating tube 1, is put into and is taken hot hole by tube bank and soft heat-conducting medium layer 3；(2-3)
Take an insulating tube 1 the most again to be connected with a upper insulating tube 1 insulation；Alternately transfer in the insulating tube 1 newly taken heat pipe bundle and
Soft heat-conducting medium layer 3 is until filling up this insulating tube 1, then is put into by this insulating tube and take hot hole；(2-4) repetitive operation step
(2-3) until web plate 4 times is to taking bottom hot hole；(3) upper port at insulating tube 1 is connected to the upper end heat exchange with main heat-transfer pipe
Heat exchanger 5.
Claims (6)
1. a hot dry rock heat transfer equipment, it is characterised in that: include main heat-transfer pipe and the insulating tube wrapped in outside main heat-transfer pipe, main
Heat-transfer pipe includes the heat pipe bundle of multi-stage series, and heat pipe bundle is multiple heat pipes being arranged side by side.
Hot dry rock heat transfer equipment the most according to claim 1, it is characterised in that: accompany between described adjacent heat tube bank
Soft heat-conducting medium layer.
Hot dry rock heat transfer equipment the most according to claim 2, it is characterised in that: the lower port of described insulating tube is arranged
There is web plate.
Hot dry rock heat transfer equipment the most according to claim 3, it is characterised in that: the upper port of described insulating tube connects
Have for the heat exchanger with the upper end heat exchange of main heat-transfer pipe.
5. a hot dry rock conduction of heat method, it is characterised in that: use xeothermic as in any of the one of claim 1-4
Rock heat transfer equipment, described conduction of heat method comprises the steps: that (1) drills through hot hole, gets into xeothermic rock stratum from ground；(2) to
Take and hot hole is transferred hot dry rock heat transfer equipment: (2-1) takes many insulating tubes, the fixing online of lower port at first insulating tube
Plate；(2-2) in first insulating tube, heat pipe bundle and soft heat-conducting medium layer are alternately transferred until being filled up by first insulating tube,
First insulating tube is put into and takes hot hole；(2-3) take an insulating tube the most again to be connected with upper insulating tube insulation；Take newly
Insulating tube in alternately transfer heat pipe bundle and soft heat-conducting medium layer until being filled up by this insulating tube, then this insulating tube put into take
Hot hole；(2-4) repetitive operation step (2-3) is until to taking bottom hot hole under web plate.
Hot dry rock conduction of heat method the most according to claim 5, it is characterised in that: also include that step (3) is at insulating tube
Upper port is connected to the heat exchanger of the upper end heat exchange with main heat-transfer pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482112.4A CN105972844A (en) | 2016-06-28 | 2016-06-28 | Hot dry rock heat transfer device and heat transfer method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482112.4A CN105972844A (en) | 2016-06-28 | 2016-06-28 | Hot dry rock heat transfer device and heat transfer method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105972844A true CN105972844A (en) | 2016-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610482112.4A Pending CN105972844A (en) | 2016-06-28 | 2016-06-28 | Hot dry rock heat transfer device and heat transfer method |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654759A (en) * | 2018-12-26 | 2019-04-19 | 中国科学院广州能源研究所 | The underground heat quarrying apparatus of multi-tier arrangement heat pipe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07280361A (en) * | 1994-04-05 | 1995-10-27 | Fujikura Ltd | Heat pipe type geothermal heat extractor |
| CN2913966Y (en) * | 2006-05-11 | 2007-06-20 | 龚智勇 | Heat pipe geothermal gathering device |
| CN101226012A (en) * | 2007-01-19 | 2008-07-23 | 李建民 | System and method for using hot pipe ground heat energy as well as application |
| CN101566441A (en) * | 2008-11-10 | 2009-10-28 | 苏州大学 | Method and device for heat transfer |
| CN101696829A (en) * | 2009-10-30 | 2010-04-21 | 龚智勇 | Method for remotely transferring and storing geothermal energy, device and application thereof |
| CN205860528U (en) * | 2016-06-28 | 2017-01-04 | 河北益民五金制造股份有限公司 | A kind of hot dry rock heat transfer equipment |
-
2016
- 2016-06-28 CN CN201610482112.4A patent/CN105972844A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07280361A (en) * | 1994-04-05 | 1995-10-27 | Fujikura Ltd | Heat pipe type geothermal heat extractor |
| CN2913966Y (en) * | 2006-05-11 | 2007-06-20 | 龚智勇 | Heat pipe geothermal gathering device |
| CN101226012A (en) * | 2007-01-19 | 2008-07-23 | 李建民 | System and method for using hot pipe ground heat energy as well as application |
| CN101566441A (en) * | 2008-11-10 | 2009-10-28 | 苏州大学 | Method and device for heat transfer |
| CN101696829A (en) * | 2009-10-30 | 2010-04-21 | 龚智勇 | Method for remotely transferring and storing geothermal energy, device and application thereof |
| CN205860528U (en) * | 2016-06-28 | 2017-01-04 | 河北益民五金制造股份有限公司 | A kind of hot dry rock heat transfer equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654759A (en) * | 2018-12-26 | 2019-04-19 | 中国科学院广州能源研究所 | The underground heat quarrying apparatus of multi-tier arrangement heat pipe |
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Application publication date: 20160928 |