CN108869208A - Tunnel type geothermal power generation and comprehensive development and utilization system - Google Patents
Tunnel type geothermal power generation and comprehensive development and utilization system Download PDFInfo
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- CN108869208A CN108869208A CN201810647906.0A CN201810647906A CN108869208A CN 108869208 A CN108869208 A CN 108869208A CN 201810647906 A CN201810647906 A CN 201810647906A CN 108869208 A CN108869208 A CN 108869208A
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- 238000010248 power generation Methods 0.000 title claims abstract description 60
- 238000011161 development Methods 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 84
- 238000005516 engineering process Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000002918 waste heat Substances 0.000 claims abstract description 10
- 238000010276 construction Methods 0.000 claims abstract description 6
- 238000009412 basement excavation Methods 0.000 claims abstract description 4
- 239000011435 rock Substances 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 17
- 230000005611 electricity Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 238000005422 blasting Methods 0.000 claims description 4
- 238000005065 mining Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000004880 explosion Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 238000009826 distribution Methods 0.000 description 6
- 238000005553 drilling Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000003287 bathing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 241001282153 Scopelogadus mizolepis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a kind of tunnel type geothermal power generations and comprehensive development and utilization system, the hot water or cold water pipe network of circulation connection is laid in tunnel, cold water is injected from ground by cold water pipe network, into after the heat-exchange device heating of underground, it is supplied to geothermal power station power generation into hot water pipe net, the waste heat after power generation recycles.The genuine digging technology such as shield, explosion using routine excavates an inclined tunnel, after tunnel reaches heat reservori, then, such as horizontal, vertical or inclination tunnel branched to different directions excavation, and heat-exchange device is placed in heat reservori.The urban underground space of geology tourist attractions, underground heat museum and different purposes is set in tunnel.The present invention excavates the tunnel for having certain tilt angle using routine techniques, can save construction cost；And by comprehensive utilization tunnel and constant temperature sheaf space, the economic benefit of tunnel type geothermal power generation comprehensive development and utilization system is greatly improved.
Description
Technical field
The present invention relates to the comprehensive utilizations of a kind of geothermal energy development and its underground space, specifically, being related to a kind of utilization
Geothermal energy, including hot water type and dry-hot-rock geothermal can tunnel type geothermal power generation, heating, refrigeration and at its it is relevant genuine with company
The utilization system of the buildings such as building Geo-tourism sight spot, underground heat museum and urban underground space in the underground space connect.
Background technique
Currently, existing geothermal exploitation well uses small-bore in most cases, main problem is that drilling cost is high, single
Well generated output is small, control heat storage range is small etc., leads to the development and utilization of geothermal energy, especially geothermal power generation, it is difficult to big
Scale is promoted.
In view of the above-mentioned problems, being currently suggested heavy caliber straight well geothermal exploitation system（The patent No.:
CN201720035241.9）, as illustrated in fig. 1 and 2, this development scheme have can a large amount of mining geothermal energies, increase heat-transfer surface
The advantages of product, reduction drilling hole number, but this geothermal exploitation system can only be excavated using special machine such as shield machine, and operation is multiple
Miscellaneous, cutting depth is small（It at present can not be more than 1000 meters of depths）And cost is very high.And the exploitation for hot dry rock, to reach 180 °C
More than, depth requires to be greater than 2000 meters even 3000 meters in most cases.It is badly in need of new efficient underground heat due to the above reasons,
Evaluation and exploration technology and system.
Summary of the invention
A kind of tunnel type geothermal power generation and comprehensive development and utilization system that the present invention exactly proposes regarding to the issue above, this is
System can not only solve the inefficient and mining problem of conventional geothermal energy resources, moreover it is possible to which the power for solving the existing development technique of hot dry rock is small
Or excavate the problem of complicated, cutting depth is small and at high cost etc..
The technical solution adopted by the present invention to solve the technical problems is：
A kind of tunnel type geothermal power generation of the present invention and comprehensive development and utilization system, including genuine net, the circulation connection being made of tunnel
Logical cold water pipe network and hot water pipe net, heat-exchange device and geothermal power station, cold water pipe network and hot water pipe net are laid in tunnel,
Cold water is injected from ground by cold water pipe network, into after heat-exchange device heating, is produced by hot water pipe net, is supplied to underground heat hair
Power station power generation, waste heat after power generation can be used to heat, freeze, bathing and cultivation etc..Using conventional genuine digging technology
Excavate an inclined tunnel, after tunnel reaches heat reservori, then excavate to different directions it is branched, it is such as horizontal, vertical or incline
Tiltedly road, and heat-exchange device is placed in heat reservori.
Geology tourist attractions, geology trip is arranged in the tunnel type geothermal power generation and comprehensive development and utilization system in tunnel
Trip sight spot is predominantly located at the underground space of the temperature at 10-100 °C, is distributed in the genuine outside of inclination, including genuine excavate shows
Rock type, stratum landforms, geologic feature and underground heat etc. be used as tourist sight, using transparent pressure resisting glass material make it is genuine and
Formation rock（Geo-tourism sight spot）Between divider wall.
The tunnel type geothermal power generation and comprehensive development and utilization system, the Urban Underground that different purposes are arranged in tunnel are empty
Between, urban underground space is mainly distributed on the thermostat layer of 10-40 °C of underground；Underground sky is excavated out in the tunnel of the thermostat layer
Between, construction has commercial street, parking lot, railway, greenhouse, office building, commercial entertainment, tourist attractions, geology in the underground space
Underground heat museum and cultural building etc..
The tunnel type geothermal power generation and comprehensive development and utilization system, genuine diameter are greater than 1 meter, can add as needed
Its big diameter, tilt angle are 0 ° to 80 °, and optimal tilt angle is 45 ° to 60 °, using shield, rotary drill or blasting technique
It excavates.
The tunnel type geothermal power generation and comprehensive development and utilization system, heat reservori is hot rock of the temperature at 100 °C or more
Stratum, optimal is Re Yan stratum of the temperature at 180 °C or more.
The tunnel type geothermal power generation and comprehensive development and utilization system are provided with motor road in tunnel, can be from ground
The through underground installations such as urban underground space and tourist attractions；The installation and operation of stair, elevator or cable car is provided in tunnel
Channel.
The tunnel type geothermal power generation and comprehensive development and utilization system, genuine section are circle, and hot-water line and cold water pipe are tight
Genuine wall distribution is pasted, hot-water line, which is located at outside genuine wall, is close to rock mass surface, and cold water pipe is located in genuine wall.
The road formula geothermal power generation and comprehensive development and utilization system, genuine section are arch door shape, hot-water line and cold water pipe
Be close to genuine wall distribution on it, left and right side, hot-water line, which is located at outside genuine wall, is close to rock mass surface, and cold water pipe is located at ground
In road wall.
The tunnel type geothermal power generation and comprehensive development and utilization system, genuine section are arch door shape, and hot-water line is located at tunnel
It is close to rock mass surface outside wall, distribution is at an upper portion thereof；Cold water pipe is located in genuine wall, is distributed at an upper portion thereof closely road wall.
The tunnel type geothermal power generation and comprehensive development and utilization system, geothermal power station hang down on ground from geothermal power station
Directly there is a Vertical Well of the diameter less than 1 meter down to heat-exchange device, power transmission cable and hot-water line be installed in Vertical Well,
The thermal energy of heat-exchange device is transferred to terrestrial power generation station by hot-water line, it is by power transmission cable that the electric power of geothermal power station is defeated
Giving underground city, perhaps the waste heat after the power generation of ground other users by pipe network is conveyed to underground city or other use of ground
Family.
The tunnel type geothermal power generation and comprehensive development and utilization system, geothermal power station is in underground and heat-exchange device phase
Neighbour has a Vertical Well of the diameter less than 1 meter to geothermal power station and heat-exchange device vertically downward from ground, in Vertical Well
Power transmission cable and hot-water line are installed, by power transmission cable by the power Transmission of geothermal power station to underground city or ground its
He is user, and the waste heat after power generation is conveyed to underground city or ground other users by pipe network.
Cold water pipe host will convey cold water to system, on the one hand guarantee that system for geothermal production of electricity supplies water, and on the other hand maintains ground
The internal temperature in hot tunnel type utilization system shallow-layer space keeps low temperature or normal temperature state.It is genuine that it is mainly distributed on inclination
In horizontal tunnel, and hot water pipe net mainly exports hot water or hot steam, is distributed in inclination tunnel, can also be vertical genuine
In.
Using conventional genuine digging technology or existing driving（It excavates）Technology excavates an appropriate tilt angle（0-
It is 80 degree, general using 45 to 60 degree）Major diameter（1 meter or more）Inclination is genuine, reaches the stratum of certain temperature（Heat storage）Afterwards, may be used
It is genuine that branched level or inclination are excavated to different directions with again.Major advantage in this way be shaft building cost with
And the construction cost of entire geothermal system is relatively low, this is because can use a variety of both economical methods（Such as blasting procedure）Into
Row excavates, furthermore, it is possible to which encountering in digging process has higher economic value using cable car even car carrying rubble, dregs
Ground can be transported to when the mineral resources such as ore carries out processing and utilization, and the lower dregs of economic value can be used for brickmaking, paving
Road, construction material etc. generate additional economic benefit, drop the cost of the geothermal power generation and utilization system further
It is low.Another advantage is not need to carry out massive hydraulic fracture, neither generates public sensitive Seismic Problems, and save a large amount of
Pressure break cost.After tunnel is built up, by the genuine injection cold water of inclination, after deep height warms storage heat exchange by same inclination tunnel or
Person's straight well output hot water is steam when high temperature.Power station（Conventional steam turbine, double-work medium, semiconductor temperature differential generating or other skills
Art）It can build and be located in the ground（Semiconductor temperature differential generating or other technologies）Or ground（Conventional steam turbine, double-work medium or its
Its technology）, the waste heat after power generation can recycle.When ground is built in power station in, the position outlet genuine as close as possible to inclination.
The genuine temperature of inclination can control at 20-30 DEG C, and the genuine stratum characteristic and stratigraphic structure showed of the inclination of excavation can
To build up tourism gallery, become advanced in the world, unique underground heat sight spot（Geotherm geology park）.Near thermostat layer（Temperature
Degree is 25 DEG C or so））The urban underground spaces system such as various markets, stop, greenhouse can also be built, due to the region
Temperature is than conveniently, the above-mentioned urban underground space system built can save a large amount of heating refrigeration energy, can also save
A large amount of valuable ground space.In case there is a need, one or more straight well can be excavated using anti-well method again（It can
To be minor diameter）.When having straight well and ground is built in power station in, position can be close to the floor outlet of straight well or close
Genuine outlet is tilted, the specific location and layout in power station can be determined according to the actual conditions in well site.This is a collection ground
The facilities such as hot power generation, tourism, scientific research, underground space development, equipment are in the huge system of one.
A kind of tunnel type geothermal power generation of the present invention and the beneficial effect of comprehensive development and utilization system are：Using conventional genuine digging
Pick technology mining has the tunnel of certain tilt angle, can save construction cost；And by comprehensively utilizing genuine and constant temperature sheaf space,
The comprehensive utilization value of tunnel type system for geothermal production of electricity is greatly improved, economic benefit is very huge.
Detailed description of the invention
Fig. 1 is a kind of geothermal exploitation system structure diagram of the prior art.
Fig. 2 is a kind of structural schematic diagram of the geothermal exploitation system heat conducting pipe of the prior art in heat reservori.
Fig. 3 is geothermal power station of the present invention in ground system structural schematic diagram.
Fig. 4 is geothermal power station of the present invention in underground system structural schematic diagram.
Fig. 5 is that section of the present invention is hot water or cold water's pipeline distribution schematic diagram in circular tunnel.
Fig. 6 is that section of the present invention is one schematic diagram of hot water or cold water's pipeline distributed embodiments in the tunnel of arch door shape.
Fig. 7 is that section of the present invention is two schematic diagram of hot water or cold water's pipeline distributed embodiments in the tunnel of arch door shape.
Fig. 8 is hot water or cold water's pipeline distribution schematic diagram in heat reservori of the present invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As illustrated in fig. 1 and 2, existing heat hair system for geothermal production of electricity（The patent No.: CN201720035241.9）, flow in pipes
22 and collection conduit 23 be located in pit shaft 21, flow in pipes 22 by inlet 24 with inject tunnel 26 be connected, collection conduit 23
It is connected by collection port 25 with tunnel 27 is collected；Heat conducting pipe 29 will inject tunnel 26 and be connected to tunnel 27 is collected, and heat conducting pipe 29 is put
It sets and carries out heat exchange in the drilling 28 of hot dry rock 20.
As shown in figures 3-8, a kind of tunnel type geothermal power generation of the present invention and comprehensive development and utilization system, including by genuine 2 structures
At genuine net, recycle connection cold water pipe network 11 and hot water pipe net 10, heat-exchange device 8 and geothermal power station 7, cold water pipe network
11 and hot water pipe net 10 be laid in tunnel 2 in, by cold water pipe network 11 by cold water from ground inject, into heat-exchange device 8 become
After heat, be supplied to geothermal power station 7 into hot water pipe net 10 and generate electricity, waste heat after power generation by pipe network be conveyed to underground city or
Person ground other users can be used to heat, freeze, bathing and cultivation etc..One is excavated using conventional genuine digging technology
A inclined genuine 2, after tunnel 2 reaches heat reservori 15, then branched, such as horizontal, vertical or inclination is excavated to different directions
Tunnel, and heat-exchange device 8 is placed in heat reservori 15.
Geology tourist attractions 5, geology is arranged in the tunnel type geothermal power generation and comprehensive development and utilization system in tunnel 2
Tourist attractions 5 are predominantly located at the underground space of the temperature at 10-100 °C, are distributed on the outside of inclination tunnel 2, including 2 excavation of tunnel is aobvious
Rock type, stratum landforms, geologic feature and underground heat for showing etc. are used as tourist sight, make ground using transparent pressure resisting glass material
Road 2 and formation rock（Geo-tourism sight spot 5）Between divider wall.
The Urban Underground of different purposes is arranged in the tunnel type geothermal power generation and comprehensive development and utilization system in tunnel 2
Space 6, urban underground space 6 are mainly distributed on the thermostat layer of 10-40 °C of underground；In the tunnel 2 of the thermostat layer with excavating out
Down space, in the underground space construction have commercial street, parking lot, railway, greenhouse, office building, commercial entertainment, tourist attractions,
Geology underground heat museum and cultural building etc..
The diameter of the tunnel type geothermal power generation and comprehensive development and utilization system, tunnel 2 is greater than 1 meter, can be as needed
Its diameter is increased, tilt angle is 0 ° to 80 °, and optimal is 45 ° to 60 °, is excavated using shield, rotary drill or blasting technique.
The tunnel type geothermal power generation and comprehensive development and utilization system, heat reservori 15 is heat of the temperature at 100 °C or more
Rock stratum, optimal is Re Yan stratum of the temperature on 180 °C.
The tunnel type geothermal power generation and comprehensive development and utilization system are provided with motor road in tunnel 2, can be from ground
Through urban underground space 6 waits underground installations with tourist attractions 5；The installation and fortune of stair, elevator or cable car are provided in tunnel 2
Row of channels.
The tunnel type geothermal power generation and comprehensive development and utilization system, genuine 2 sections are circle, hot-water line 10 and cold water pipe
11, which are close to genuine wall 9, is distributed, and hot-water line 10, which is located at outside genuine wall 9, is close to 12 surface of rock mass, and cold water pipe 11 is located in genuine wall 9.
The road formula geothermal power generation and comprehensive development and utilization system, genuine 2 sections are arch door shape, hot-water line 10 and cold water
Pipe 11 be close to the distribution of genuine wall 9 on it, left and right side, hot-water line 10 is located at outside genuine wall 9 and is close to 12 surface of rock mass, cold
Water pipe 11 is located in genuine wall 9.
The tunnel type geothermal power generation and comprehensive development and utilization system, genuine 2 sections are arch door shape, and hot-water line 10 is distributed in
Genuine 9 top of wall is located at outside genuine wall 9 and is close to 12 surface of rock mass；Cold water pipe 11 is located in genuine wall 9, is distributed tight at an upper portion thereof
Paste genuine wall 9.
The tunnel type geothermal power generation and comprehensive development and utilization system, geothermal power station 7 is on ground, from ground geothermal power generation
It stands and 7 arrives heat-exchange device 8 vertically downward and have Vertical Well 4 of the diameter less than 1 meter, power transmission cable is installed in Vertical Well 4
With hot-water line 10, the thermal energy of heat-exchange device 8 is transferred to by terrestrial power generation station by hot-water line 10, by power transmission cable by underground heat
For the power Transmission in power station 7 to underground city or ground other users, the waste heat after power generation is conveyed to Dungeon by pipe network
City or ground other users.
The tunnel type geothermal power generation and comprehensive development and utilization system, geothermal power station 7 is in underground and 8 phase of heat-exchange device
Neighbour has Vertical Well 4 of the diameter less than 1 meter to geothermal power station 7 and heat-exchange device 8 vertically downward from ground, vertical
Power transmission cable and hot-water line 10 are installed in well 4, by power transmission cable by the power Transmission of geothermal power station 7 to underground city or
Person ground other users, the waste heat after power generation are conveyed to underground city or ground other users by pipe network.
Tunnel type geothermal power generation and comprehensive development and utilization system, hot-water line 10 by high temperature resistant, resistant material processing and
At.Hot and cold circulation line in its heat-exchange device 8 is tortuous detour, and laminated multi-layer may be selected level according to different demands and put
It sets, be disposed vertically；Pipe network material is preferably spiral coil；Tube fluid medium is one of water, oil, fused salt or carbon dioxide；Heat
Fill high-efficiency heat conduction material 14 between hot and cold circulation line in switch, preferably machining generate, it is often discarded
Wire；Cryogen medium is injected from cold water tube inlet 16, from 17 outflow of hot-water line outlet.
The present invention is not limited to above-mentioned preferred forms, anyone obtain under the inspiration of the present invention other it is any with
The identical or similar product of the present invention, is within the scope of the present invention.
Claims (10)
1. a kind of tunnel type geothermal power generation and comprehensive development and utilization system, including is made of genuine (2) genuine net, recycle connection
Cold water pipe network (11) and hot water pipe net (10), heat-exchange device (8) and geothermal power station (7), cold water pipe network (11) and hot water
Pipe network (10) is laid in genuine (2), is injected cold water from ground by cold water pipe network (11), is become into heat-exchange device (8)
After heat, geothermal power station (7) are supplied into hot water pipe net (10) and are generated electricity；It is characterized in that：Using conventional genuine Mining Technology
Art excavates one inclined genuine (2), after genuine (2) reach heat reservori (15), then branched to different directions excavation, such as water
Flat, vertical or inclination is genuine, and heat-exchange device (8) is placed in heat reservori (15).
2. tunnel type geothermal power generation according to claim 1 and comprehensive development and utilization system, it is characterised in that：In tunnel
(2) geology tourist attractions (5) are set in, Geo-tourism sight spot (5) are predominantly located at the underground space of the temperature at 10-100 °C, mainly
It is distributed on the outside of inclination genuine (2), excavates the rock type, stratum landforms, geology and the Geothermal Characteristics that show including genuine (2)
Deng being used as tourist sight, genuine (2) and Geo-tourism sight spot (5) divider wall is made using pressure resisting glass material.
3. tunnel type geothermal power generation according to claim 1 and comprehensive development and utilization system, it is characterised in that：In tunnel
(2) urban underground space (6) of the different purposes of setting, urban underground space (6) are mainly distributed on the constant temperature of 10-40 °C of underground in
Layer excavates out the underground space in the tunnel (2) of the thermostat layer, and construction has commercial street, parking lot, railway, temperature in the underground space
Room greenhouse, office building, commercial entertainment, tourist attractions, geology underground heat museum and cultural building.
4. tunnel type geothermal power generation according to claim 1 and comprehensive development and utilization system, it is characterised in that：Genuine (2)
Diameter be greater than 1 meter, its diameter can be increased as needed, tilt angle is 0 ° to 80 °, and optimal is 45 ° to 60 °, using shield
Structure, rotary drill or blasting technique are excavated.
5. tunnel type geothermal power generation according to claim 1 and comprehensive development and utilization system, it is characterised in that：Heat reservori
It (15) is temperature on 100 °C or more of the stratum Re Yan, optimal is Re Yan stratum of the temperature at 180 °C or more.
6. tunnel type geothermal power generation according to claim 1 and comprehensive development and utilization system, it is characterised in that：Genuine (2)
It is inside provided with motor road, can go directly urban underground space (6) and tourist attractions (5) from ground；Building is provided in genuine (2)
The installation and operation channel of ladder, elevator or cable car.
7. tunnel type geothermal power generation according to claim 1 and comprehensive development and utilization system, it is characterised in that：Genuine (2)
Section is circle, and hot-water line (10) and cold water pipe (11) are close to genuine wall (9) and are uniformly distributed, and hot-water line (10) is located at genuine wall
(9) it is close to rock mass (12) surface outside, cold water pipe (11) is located in genuine wall (9).
8. tunnel type geothermal power generation according to claim 1 and comprehensive development and utilization system, it is characterised in that：Genuine (2)
Section is arch door shape, hot-water line (10) and cold water pipe (11) be close to genuine wall (9) be distributed on it, left and right side, hot water
It manages (10) and is located at genuine wall (9) abutting rock mass (12) surface outside, cold water pipe (11) is located in genuine wall (9).
9. tunnel type geothermal power generation according to claim 1 and comprehensive development and utilization system, it is characterised in that：Geothermal power generation
(7) are stood on ground, have a diameter perpendicular less than 1 meter to heat-exchange device (8) vertically downward from ground and geothermal power station (7)
Straight well (4) is equipped with power transmission cable and hot-water line (10) in the Vertical Well (4), by hot-water line (10) by heat-exchange device (8)
Thermal energy be transferred to terrestrial power generation station, by power transmission cable by the power Transmission of geothermal power station (7) to underground city or ground
Face other users, the waste heat after power generation are conveyed to underground city or ground other users by pipe network.
10. tunnel type geothermal power generation according to claim 1 and comprehensive development and utilization system, it is characterised in that：Underground heat hair
Power station (7) is adjacent with heat-exchange device (8) in underground, from ground vertically downward to geothermal power station (7) and heat-exchange device (8)
There is Vertical Well (4) of the diameter less than 1 meter, power transmission cable and hot-water line (10) are installed in Vertical Well (4), pass through transmission of electricity
For cable by the power Transmission of geothermal power station (7) to underground city or ground other users, the waste heat after power generation passes through pipe network
It is conveyed to underground city or ground other users.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237146A (en) * | 2020-01-14 | 2020-06-05 | 西南石油大学 | Geothermal branch well constant temperature difference power generation system |
| CN111980650A (en) * | 2020-07-24 | 2020-11-24 | 中国矿业大学 | Upward drilling low-temperature fluid graded fracturing method |
| US20220128269A1 (en) * | 2018-12-31 | 2022-04-28 | Eaposys Sa | Geothermal heat exchange installation and method |
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