CN208154861U - A kind of more inclined shaft connection underground heat heat-exchange systems - Google Patents
A kind of more inclined shaft connection underground heat heat-exchange systems Download PDFInfo
- Publication number
- CN208154861U CN208154861U CN201820466268.8U CN201820466268U CN208154861U CN 208154861 U CN208154861 U CN 208154861U CN 201820466268 U CN201820466268 U CN 201820466268U CN 208154861 U CN208154861 U CN 208154861U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- branch
- well
- heat
- multilateral wells
- Prior art date
- 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.)
- Expired - Fee Related
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Classifications
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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
A kind of more inclined shaft connection underground heat heat-exchange systems, belong to underground heat, hot dry rock production technique field, solve the low technical problem of geothermal energy utilization rate, heat-exchange system is closed structure, including main shaft and Multilateral Wells, main shaft is set as straight well, and main shaft internal upper part is provided with thermal sleeve, it is interrupted setting glass reinforced plastic sleeve with the place of docking of predetermined branch well on the outer wall of main shaft, the outer end of main shaft is provided with well head discharge end socket；Several mouthfuls of Multilateral Wells are set to the surrounding of main shaft well head, Multilateral Wells are respectively by branch's straight well and branch inclined well construction, the other end of branch's straight well is connected to the head end of branch's inclined shaft, and the tail end of branch's inclined shaft is connected to thermal sleeve, and the outer end of branch's straight well is provided with well head injection end socket.The utility model re-uses already present waste and old straight well, improves heat utilization rate height, and energy-efficient, environmentally protective, device of working medium iterative cycles utilize, and can protect saving urban groundwater resource.
Description
Technical field
The utility model belongs to underground heat, hot dry rock production technique field, in particular to a kind of more inclined shaft connection underground heat heat exchange
System.
Background technique
With the enhancing of people's environmental consciousness, the new energy of more sustainable developments, which gradually goes on the arena of history, becomes master
Angle starts to replace the non-renewable resources such as traditional petroleum, coal in more and more technical fields in succession, geothermal energy, xeothermic
Rock exploitation is gradually shown up prominently in heating and field of comprehensive utilization.National Energy Board exists within 2016《Energy technology revolution innovation row
Dynamic plan（2016-2030）》It is middle to propose " to reinforce geothermal energy development and utilization, the transformation of research and development hot water type geothermal system and volume increase skill
Art breaks through hot dry rock exploitation key technology equipment, work that construction MW class hot dry rock generates electricity and the comprehensive cascade utilization of underground heat is demonstrated
Journey ".
However, the utilization rate of energy is extremely low in geothermal energy collection process in the prior art, the reason is that the heat of acquisition
Amount easily exchanges heat with stratum during transportation, leads to the waste of geothermal energy, the geothermal energy of acquisition is not able to satisfy the use of people
Demand, so how to improve the utilization rate of geothermal energy becomes urgent problem to be solved at present.
Utility model content
In order to overcome the shortcomings of the prior art, the low technical problem of existing geothermal energy utilization rate is solved, provides one
The more inclined shafts of kind are connected to underground heat heat-exchange systems.
The utility model is achieved by the following technical programs.
A kind of more inclined shafts are connected to underground heat heat-exchange system, it includes main shaft and Multilateral Wells, wherein：The heat-exchange system is closed
Structure, the main shaft are set as straight well, are equipped with glass reinforced plastic sleeve with the place of docking of predetermined branch well interruption in the outer wall of main shaft,
Vacuum heat-preserving casing is set in main shaft and positioned at the top of the top main shaft and Multilateral Wells mating interface；The outer end of main shaft
It is provided with well head discharge end socket, the outlet end of well head discharge end socket is connected to by pipeline with the inlet of thermal power plant unit, heat supply machine
The liquid outlet of group is set as high temperature refrigerant heat supply mouth；
Several mouth Multilateral Wells are radially disposed at the surrounding of main shaft well head, and the internal diameter of main shaft is greater than any a bite point
The internal diameter of Zhi Jing, respectively by branch's straight well and branch inclined well construction, one end of branch's straight well extends to Multilateral Wells described in every mouth
Ground, the outer end of branch's straight well are provided with well head injection end socket, the inlet of each well head injection end socket pass through respectively pipeline with
The liquid outlet of working medium holding vessel is connected to, and is respectively arranged with pressure regulation on the pipeline that working medium holding vessel is connect with each well head injection end socket
Pump, the other end of branch's straight well be connected tos with the head end of branch's inclined shaft, and the tail end of branch's inclined shaft is through glass reinforced plastic sleeve and main shaft company
Logical, the angle between the axis direction of branch's inclined shaft and the axis direction of main shaft is at an acute angle, and each branch's inclined shaft and main shaft connect
Mouth position is random and is not set to overlappingly on the cylindrical surface of main shaft.
Further, at least three mouthfuls of Multilateral Wells are set to the surrounding of main shaft well head, and the branch of three mouthfuls of Multilateral Wells
Distance of the straight well segment axis away from main shaft is each unequal.
The beneficial effects of the utility model are compared with prior art：
The utility model can re-use already present waste and old straight well, continue to open up inclined shaft group ingredient in straight well end
The connection of Zhi Jingyu main shaft injects heat-exchange working medium into main shaft simultaneously from more mouthfuls of Multilateral Wells, improves the pressure of heat-exchange working medium in main shaft
Power carries the time that the working medium of geothermal energy is transported in main shaft after shortening heat exchange, and heat utilization rate is high, energy-efficient, green
Colour circle is protected, no exhaust gas, waste liquid, waste sludge discharge, and device of working medium iterative cycles utilize, and can protect saving urban groundwater resource.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram, and hollow arrow indicates cryogenic fluid in figure, and filled arrows indicate high
Warm working medium.
Fig. 2 is the utility model stereochemical structure perspective diagram.
In figure, 1 is main shaft, and 2 be Multilateral Wells, and 21 be branch's straight well, and 22 be branch's inclined shaft, and 3 be glass reinforced plastic sleeve, and 4 be work
Matter heat supply mouth, 5 be thermal power plant unit, and 6 are discharged end socket for well head, and 7 inject end socket for well head, and 8 be pressure regulating pump, and 9 be working medium holding vessel,
10 be thermal sleeve.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
A kind of more inclined shafts as depicted in figs. 1 and 2 are connected to underground heat heat-exchange systems, it includes main shaft 1 and Multilateral Wells 2, wherein：
The heat-exchange system is closed structure, and the main shaft 1 is set as straight well, at the docking of outer wall and predetermined branch well 2 of main shaft 1
Interruption is equipped with glass reinforced plastic sleeve 3, and the top in main shaft 1 and positioned at 2 mating interface of the top main shaft 1 and Multilateral Wells is arranged
Vacuum heat-preserving casing 10；The outer end of main shaft 1 is provided with well head discharge end socket 6, and the outlet end of well head discharge end socket 6 passes through pipeline
It is connected to the inlet of thermal power plant unit 5, the liquid outlet of thermal power plant unit 5 is set as high temperature refrigerant heat supply mouth 4；
Several mouth Multilateral Wells 2 are radially disposed at the surrounding of 1 well head of main shaft, and the internal diameter of main shaft 1 is greater than any one
The internal diameter of mouthful Multilateral Wells 2, Multilateral Wells 2 described in every mouth are made of branch's straight well 21 and branch's inclined shaft 22 respectively, branch's straight well 21
One end extend to ground, the outer end of branch's straight well 21 is provided with well head injection end socket 7, the feed liquor of each well head injection end socket 7
Mouth is connected to by pipeline with the liquid outlet of working medium holding vessel 9 respectively, the pipe that working medium holding vessel 9 is connect with each well head injection end socket 7
It is respectively arranged with pressure regulating pump 8 on road, the other end of branch's straight well 21 is connected to the head end of branch inclined shaft 22, the tail of branch's inclined shaft 22
End is connected to through glass reinforced plastic sleeve 3 with main shaft 1, the angle between the axis direction of branch's inclined shaft 22 and the axis direction of main shaft 1
At an acute angle, the interface position of each branch's inclined shaft 22 and main shaft 1 is random and is not set to the cylindrical surface of main shaft 1 overlappingly
On.
Further, at least three mouthfuls of Multilateral Wells 2 are set to the surrounding of 1 well head of main shaft, and point of three mouthfuls of Multilateral Wells 2
Distance of 21 segment axis of branch straight well away from main shaft 1 is each unequal.
The use process and principle of the utility model are as follows：
1, according to geologic prospect early period, suitable geothermal reservoir position is chosen, selectes well location, according to calorific requirement, underground heat ladder
Degree bores main shaft 1, while branch's straight well 21 of more mouthfuls of different depths is bored around the well head of main shaft 1, installs thermal sleeve in main shaft 1
10；
2, branch's inclined shaft 22 is bored according to positioning device in the end of more mouthfuls of branch's straight wells 21, and Shi Duokou branch inclined shaft 22 runs through glass
Glass steel sleeve 3 is docked and connected with main shaft 1 in different location；
3, the top installation well head of branch's straight well 21 injects end socket 7, and end socket 6 is discharged in the top installation well head of main shaft 1；
4, according to heat demand, the pressure and flow of each 2 inlet side pressure regulating pump 8 of Multilateral Wells, well head injection envelope are adjusted
First 7 start simultaneously with well head discharge end socket 6, and cryogenic fluid injects Multilateral Wells 2 by well head injection end socket 7, and cryogenic fluid is in branch
It is flowed into main shaft 1 after the bottom heat exchange of well 2, the high temperature refrigerant after 10 heat exchanging of thermal sleeve is kept the temperature and is delivered to well head row
End socket 6 is discharged out, and high temperature refrigerant enters heat exchange again by well head injection end socket 7 after doing work in the heat energy utilization equipment of ground and is
Next circulation is carried out in system.
Technical characterstic：Injection well and each self installation injection of discharge well and discharger, pass through the company of lower curved section and straight well section
It is logical, heat exchange working medium cavity is formed, existing straight well can be efficiently used as branch's straight well 21, to collectively constitute large-scale
Heat-exchange system, bigger increases heat-exchange system area, efficiently exports hot dry rock rock mass thermal energy, meets ground heat energy utilization
The needs of equipment, have greatly saved occupied area, breach ground can construction site area it is narrow or meet with underground city build
If the case where red line.
Using this techniques save space occupied, water resource to be saved, reduces cost, heat utilization rate is high, and it is environmentally protective, without useless
Gas, waste liquid, waste sludge discharge, social benefit are significant.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
It is any to be familiar with those skilled in the art within the technical scope disclosed by the utility model in this, the variation that can be readily occurred in
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (2)
1. a kind of more inclined shafts are connected to underground heat heat-exchange system, it includes main shaft（1）And Multilateral Wells（2）, it is characterised in that：The heat exchange
System is closed structure, the main shaft（1）It is set as straight well, in main shaft（1）Outer wall and predetermined branch well（2）Docking between
It is disconnected that glass reinforced plastic sleeve is installed（3）, in main shaft（1）In and be located at the top main shaft（1）And Multilateral Wells（2）Mating interface it is upper
Side's setting vacuum heat-preserving casing（10）；Main shaft（1）Outer end be provided with well head discharge end socket（6）, well head discharge end socket（6）'s
Outlet end passes through pipeline and thermal power plant unit（5）Inlet connection, thermal power plant unit（5）Liquid outlet be set as high temperature refrigerant heat supply
Mouthful（4）；
Several mouth Multilateral Wells（2）It is radially disposed at main shaft（1）The surrounding of well head, main shaft（1）Internal diameter be greater than it is any
A bite Multilateral Wells（2）Internal diameter, Multilateral Wells described in every mouth（2）Respectively by branch's straight well（21）With branch's inclined shaft（22）Composition,
Branch's straight well（21）One end extend to ground, branch's straight well（21）Outer end be provided with well head injection end socket（7）, each well head
Inject end socket（7）Inlet pass through pipeline and working medium holding vessel respectively（9）Liquid outlet connection, working medium holding vessel（9）With it is each
Well head injects end socket（7）Pressure regulating pump is respectively arranged on the pipeline of connection（8）, branch's straight well（21）The other end and branch's inclined shaft
（22）Head end connection, branch's inclined shaft（22）Tail end run through glass reinforced plastic sleeve（3）With main shaft（1）Connection, branch's inclined shaft（22）
Axis direction and main shaft（1）Axis direction between angle it is at an acute angle, each branch's inclined shaft（22）With main shaft（1）Interface
Position is random and is not set to main shaft overlappingly（1）Cylindrical surface on.
2. a kind of more inclined shafts according to claim 1 are connected to underground heat heat-exchange system, it is characterised in that：At least divide described in three mouthfuls
Zhi Jing（2）It is set to main shaft（1）The surrounding of well head, and three mouthfuls of Multilateral Wells（2）Branch's straight well（21）Segment axis is away from main shaft
（1）Distance it is each unequal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820466268.8U CN208154861U (en) | 2018-03-30 | 2018-03-30 | A kind of more inclined shaft connection underground heat heat-exchange systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820466268.8U CN208154861U (en) | 2018-03-30 | 2018-03-30 | A kind of more inclined shaft connection underground heat heat-exchange systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208154861U true CN208154861U (en) | 2018-11-27 |
Family
ID=64380446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820466268.8U Expired - Fee Related CN208154861U (en) | 2018-03-30 | 2018-03-30 | A kind of more inclined shaft connection underground heat heat-exchange systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208154861U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207408A (en) * | 2019-05-22 | 2019-09-06 | 天津大学 | A kind of mid-deep strata underground heat exchanger that interior caliber accounting is variable |
| TWI768278B (en) * | 2020-01-08 | 2022-06-21 | 陳俊雄 | Heat extraction device and power generation sysyem |
-
2018
- 2018-03-30 CN CN201820466268.8U patent/CN208154861U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207408A (en) * | 2019-05-22 | 2019-09-06 | 天津大学 | A kind of mid-deep strata underground heat exchanger that interior caliber accounting is variable |
| TWI768278B (en) * | 2020-01-08 | 2022-06-21 | 陳俊雄 | Heat extraction device and power generation sysyem |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181127 Termination date: 20210330 |