CN208595036U - A kind of supercritical carbon dioxide hot dry rock generating set that carbon dioxide is gone into the well - Google Patents
A kind of supercritical carbon dioxide hot dry rock generating set that carbon dioxide is gone into the well Download PDFInfo
- Publication number
- CN208595036U CN208595036U CN201821266113.6U CN201821266113U CN208595036U CN 208595036 U CN208595036 U CN 208595036U CN 201821266113 U CN201821266113 U CN 201821266113U CN 208595036 U CN208595036 U CN 208595036U
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- well
- dry rock
- hot dry
- outlet
- 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.)
- Active
Links
Classifications
-
- 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
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a kind of supercritical carbon dioxide hot dry rock generating set that carbon dioxide is gone into the well, including gas injection well, return-air well, compressor, regenerator, turbine, thermal power plant, mixer, generator and hot dry rock pressure break band in underground is buried；The lower end of gas injection well and the lower end of return-air well are extend into hot dry rock pressure break band, the outlet of compressor is connected with the cold side input port of regenerator, the cold side outlet port of regenerator is connected with gas injection well, return-air well is connected with the entrance of turbine, the outlet of turbine is connected with the hot side entrance of regenerator, the hot side outlet and the carbon dioxide outlet of thermal power plant and the entrance of mixer of regenerator are connected, the outlet of mixer is connected with the entrance of compressor, turbine is connected with compressor and generator, the system can be realized geothermal power generation and the combination of carbon dioxide geologic sequestration, hot dry rock generating efficiency is higher simultaneously, and the energy consumption of carbon dioxide sequestration process is lower.
Description
Technical field
The utility model belongs to carbon dioxide sequestration and geothermal power generation field, be related to a kind of carbon dioxide go into the well it is overcritical
The xeothermic rock generating set of carbon dioxide.
Background technique
Firstly, in terms of carbon dioxide sequestration:
The carbon dioxide discharged from the industrial production of factory and other human activity process, is to lead to Global climate change
One of principal element.Power plant, refinery, production of hydrocarbons factory, steel plant, cement plant and some other chemical plant burning coal,
During the fuel such as oil and natural gas, a large amount of carbon dioxide can be discharged into air, and carbon dioxide is greenhouse gases,
Its in an atmosphere concentration raising can make weather balance be seriously damaged.
Carbon dioxide geological storage, just refers to and the carbon dioxide of these plant emissions is separated and collected, not to big
It is discharged in gas, second is that being injected into suitable deep geology structure, permanently buries underground, so can greatly subtract
The discharge capacity of few carbon dioxide is the powerful mean for coping with global warming.
Carbon dioxide geological storage is mostly that underground is injected in the form of supercritical fluid under conditions of high temperature and pressure.
A large amount of carbon dioxide is boosted into above-critical state, large-scale carbon-dioxide gas compressor is needed to realize, which belongs to highly energy-consuming
Equipment, therefore often there is high energy consumption in carbon dioxide geologic sequestration.
Secondly, in terms of dry-hot-rock geothermal power generation:
China's geothermal energy resources are very rich, and Exploitation Potential is huge, the especially exploitation of hot dry rock and efficiently utilization, meaning weight
Greatly.The development and utilization of hot dry rock, mainly using underground high temperature but lack the rock of fluid due to low-porosity and permeability
The heat stored in stone (body), needs to be formed enhanced geothermal system (Enhanced Geothermal by artificial fracturing
System it) can just be exploited.Generally use high-pressure working medium injection, the heat exchange of pressure break rock, hole, the mode for taking heat out of are opened
It adopts.This means that the development and utilization of hot dry rock, investment of equipment are very big.If can be improved the power generation effect of downstream electricity generation system
Rate can then significantly reduce the initial cost of whole system.
Usually there are two types of approach for the promotion of electricity generation system generating efficiency, and one is the main ginsengs such as the temperature for promoting power generation cycle
Number, it is another then be use new and effective power cycle form.For hot dry rock power generation, the temperature of power generation cycle is promoted
Degree, is limited by the limitation of local geographical conditions and the limitation of hot dry rock mining depth, difficulty is larger.So using new and effective
Power cycle form, such as supercritical carbon dioxide generation technology, then be promoted hot dry rock electricity generation system efficiency one kind it is important
Approach.
Consider in conjunction with above two technology, if the process and overcritical titanium dioxide that inject carbon dioxide into underground and seal up for safekeeping
The process of carbon hot dry rock power generation reasonably merges, then the energy consumption of carbon dioxide sequestration process not only can be significantly reduced, but also can mention
The efficiency of hot dry rock power generation is risen, the investment of equipment of hot dry rock power generation unit generated energy is reduced.
However through investigating, although carbon dioxide geologic sequestration technology and hot dry rock generation technology simple at present has centainly
Development, but rarely have the two to organically combine, the correlative study of comprehensive utilization, therefore, it is also desirable to a large amount of original sex work.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts, provide a kind of carbon dioxide go into the well it is super
Critical carbon dioxide hot dry rock generating set, the system can be realized geothermal power generation and the combination of carbon dioxide geologic sequestration, together
When hot dry rock generating efficiency it is higher, and the energy consumption of carbon dioxide sequestration process is lower.
In order to achieve the above objectives, the supercritical carbon dioxide hot dry rock power generation that carbon dioxide described in the utility model is gone into the well
Unit includes gas injection well, return-air well, compressor, regenerator, turbine, thermal power plant, mixer, generator and buries in underground
Hot dry rock pressure break band；
The lower end of gas injection well and the lower end of return-air well are extend into hot dry rock pressure break band, the outlet of compressor and regenerator
Cold side input port be connected, the cold side outlet port of regenerator is connected with gas injection well, and return-air well is connected with the entrance of turbine, turbine
Outlet be connected with the hot side entrance of regenerator, the hot side outlet of regenerator and the carbon dioxide outlet of thermal power plant and mixer
Entrance be connected, the outlet of mixer is connected with the entrance of compressor, and turbine is connected with compressor and generator.
The pre-cooled device of the hot side outlet of regenerator is connected with the entrance of mixer.
The carbon dioxide outlet of thermal power plant is connected through carbon dioxide conveyance conduit with the entrance of mixer.
Filter and carbon dioxide pump are disposed with along carbon dioxide stream passes direction on carbon dioxide conveyance conduit.
Turbine and compressor and generator coaxle are arranged.
Carbon dioxide conveyance conduit is connected with the outlet of the carbon dioxide paved set device of thermal power plant.
The utility model has the following beneficial effects:
The supercritical carbon dioxide hot dry rock generating set that carbon dioxide described in the utility model is gone into the well is in concrete operations
When, the power cycle to be generated electricity using supercritical carbon dioxide Brayton cycle as hot dry rock, to improve the power generation effect of hot dry rock
Rate, while reducing the investment of equipment of hot dry rock power generation unit generated energy.In addition, the supercritical carbon dioxide warp of regenerator output
Gas injection well, which enters, completes heat exchange in hot dry rock pressure break band, in heat transfer process, partial CO 2 releases hot dry rock pressure break band
Into distal end rock stratum, and permanent storage, in underground, another part cooled via return air well enters in turbine after collecting, and in turbine into
Row expansion work, is generated electricity with driven generator, to realize the geological storage of geothermal power generation and carbon dioxide simultaneously, and significant
Reduce the energy consumption of carbon dioxide geologic sequestration.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Wherein, 11 it is compressor, 12 be regenerator, 13 be gas injection well, 14 be hot dry rock pressure break band, 15 is return-air well, 16
It is generator for turbine, 17,18 be forecooler, 19 be mixer, 21 be thermal power plant, 22 be carbon dioxide conveyance conduit, 23 is
Filter, 24 are carbon dioxide pump.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Figure 1, the supercritical carbon dioxide hot dry rock generating set that carbon dioxide described in the utility model is gone into the well
Including gas injection well 13, return-air well 15, compressor 11, regenerator 12, turbine 16, thermal power plant 21, mixer 19, generator 17 and
Bury the hot dry rock pressure break band 14 in underground；The lower end of gas injection well 13 and the lower end of return-air well 15 extend into hot dry rock pressure break band
In 14, the outlet of compressor 11 is connected with the cold side input port of regenerator 12, cold side outlet port and 13 phase of gas injection well of regenerator 12
Connection, return-air well 15 are connected with the entrance of turbine 16, and the outlet of turbine 16 is connected with the hot side entrance of regenerator 12, backheat
The hot side outlet of device 12 and the carbon dioxide outlet of thermal power plant 21 are connected with the entrance of mixer 19, the outlet of mixer 19 with
The entrance of compressor 11 is connected, and turbine 16 is connected with compressor 11 and generator 17, wherein turbine 16 and compressor 11 and
Generator 17 is coaxially arranged；The pre-cooled device 18 of the hot side outlet of regenerator 12 is connected with the entrance of mixer 19.
The carbon dioxide outlet of thermal power plant 21 is connected through carbon dioxide conveyance conduit 22 with the entrance of mixer 19；Dioxy
Change and is disposed with filter 23 and carbon dioxide pump 24 along carbon dioxide stream passes direction on carbon conveyance conduit 22.Carbon dioxide is defeated
Pipeline 22 is sent to be connected with the outlet of the carbon dioxide paved set device of thermal power plant 21.
The specific work process of the utility model are as follows:
It heats up in the cold side that supercritical carbon dioxide after the boosting of compressor 11 enters regenerator 12, through infusing after
Gas well 13 is sent into hot dry rock pressure break band 14；Supercritical carbon dioxide in hot dry rock pressure break band 14 by rock heat, to absorb
The a large amount of geothermal energies contained in rock, the supercritical carbon dioxide after increasing temperature and pressure are collected by return-air well 15, are then fed into turbine
Expansion work in 16, turbine 16 drags compressor 11 and generator 17 works, and the supercritical carbon dioxide that turbine 16 is discharged is successively
Hot side and forecooler 18 through regenerator 12 cool down, and are then fed into mixer 19, the carbon dioxide that thermal power plant 21 exports
It is entered in mixer 19 after filter 23 and carbon dioxide pump 24, the supercritical carbon dioxide that mixer 19 exports enters
In compressor 11.
During supercritical carbon dioxide is exchanged heat in hot dry rock pressure break band 14 with rock, some titanium dioxide
Carbon releases hot dry rock pressure break band 14 and enters distal end rock stratum, and permanent storage is in underground, to realize the geological storage of carbon dioxide, separately
A part is collected by return-air well 15.At the same time, it to maintain electricity generation system working medium flow to stablize, then needs to carry out systematic working medium
Supplement carries out the supplement of carbon dioxide by thermal power plant 21, wherein the carbon dioxide flow and hot dry rock pressure break band 14 of supplement
The middle carbon dioxide flow revealed and be sealed in underground is equal.
The utility model is generated electricity using supercritical carbon dioxide Brayton cycle as hot dry rock first when specific operation
Power cycle, with improve hot dry rock power generation efficiency, reduce hot dry rock power generation unit generated energy investment of equipment；Secondly,
During supercritical carbon dioxide completes heat exchange in hot dry rock pressure break band 14, partial CO 2 releases hot dry rock pressure break band
14 enter distal end rock stratum, and permanent storage significantly reduces two in underground to realize the geological storage of geothermal power generation and carbon dioxide
The energy consumption of carbonoxide geological storage.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
The utility model processed, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done,
It should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of supercritical carbon dioxide hot dry rock generating set that carbon dioxide is gone into the well, which is characterized in that including gas injection well
(13), return-air well (15), compressor (11), regenerator (12), turbine (16), thermal power plant (21), mixer (19), generator
(17) and hot dry rock pressure break band (14) in underground is buried；
The lower end of gas injection well (13) and the lower end of return-air well (15) are extend into hot dry rock pressure break band (14), compressor (11)
Outlet is connected with the cold side input port of regenerator (12), and the cold side outlet port of regenerator (12) is connected with gas injection well (13), return-air
Well (15) is connected with the entrance of turbine (16), and the outlet of turbine (16) is connected with the hot side entrance of regenerator (12), backheat
The hot side outlet of device (12) and the carbon dioxide outlet of thermal power plant (21) are connected with the entrance of mixer (19), mixer (19)
Outlet be connected with the entrance of compressor (11), turbine (16) is connected with compressor (11) and generator (17).
2. the supercritical carbon dioxide hot dry rock generating set that carbon dioxide according to claim 1 is gone into the well, feature exist
In the pre-cooled device of hot side outlet (18) of regenerator (12) is connected with the entrance of mixer (19).
3. the supercritical carbon dioxide hot dry rock generating set that carbon dioxide according to claim 1 is gone into the well, feature exist
In the carbon dioxide outlet of thermal power plant (21) is connected through carbon dioxide conveyance conduit (22) with the entrance of mixer (19).
4. the supercritical carbon dioxide hot dry rock generating set that carbon dioxide according to claim 3 is gone into the well, feature exist
In being disposed with filter (23) and carbon dioxide pump along carbon dioxide stream passes direction on carbon dioxide conveyance conduit (22)
(24)。
5. the supercritical carbon dioxide hot dry rock generating set that carbon dioxide according to claim 1 is gone into the well, feature exist
In turbine (16) and compressor (11) and generator (17) are coaxially arranged.
6. the supercritical carbon dioxide hot dry rock generating set that carbon dioxide according to claim 3 is gone into the well, feature exist
In carbon dioxide conveyance conduit (22) is connected with the outlet of the carbon dioxide paved set device of thermal power plant (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821266113.6U CN208595036U (en) | 2018-08-07 | 2018-08-07 | A kind of supercritical carbon dioxide hot dry rock generating set that carbon dioxide is gone into the well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821266113.6U CN208595036U (en) | 2018-08-07 | 2018-08-07 | A kind of supercritical carbon dioxide hot dry rock generating set that carbon dioxide is gone into the well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208595036U true CN208595036U (en) | 2019-03-12 |
Family
ID=65604429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821266113.6U Active CN208595036U (en) | 2018-08-07 | 2018-08-07 | A kind of supercritical carbon dioxide hot dry rock generating set that carbon dioxide is gone into the well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208595036U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083706A (en) * | 2018-08-07 | 2018-12-25 | 西安热工研究院有限公司 | A kind of supercritical carbon dioxide hot dry rock electricity generation system with carbon dioxide sequestration |
| CN113374659A (en) * | 2021-06-18 | 2021-09-10 | 中国石油化工股份有限公司 | Hot dry rock power generation system based on carbon dioxide closed cycle |
-
2018
- 2018-08-07 CN CN201821266113.6U patent/CN208595036U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083706A (en) * | 2018-08-07 | 2018-12-25 | 西安热工研究院有限公司 | A kind of supercritical carbon dioxide hot dry rock electricity generation system with carbon dioxide sequestration |
| CN113374659A (en) * | 2021-06-18 | 2021-09-10 | 中国石油化工股份有限公司 | Hot dry rock power generation system based on carbon dioxide closed cycle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114084569B (en) | Method for developing compressed carbon dioxide energy storage on deep aquifer carbon dioxide geological storage | |
| CN103233709B (en) | Super heavy oil deposit exploiting carbon capture, utilization and storage (CCUS) system and method based on CO2 assisted steam assisted gravity drainage (SAGD) | |
| CN103122759B (en) | A kind of coal bed gas well multielement hot fluid enhanced recovery method | |
| CN102587877B (en) | Multi-element thermal fluid displacement process | |
| Cao et al. | Research on the feasibility of compressed carbon dioxide energy storage system with underground sequestration in antiquated mine goaf | |
| JP4972752B2 (en) | Geothermal power generation method and system | |
| CN103216219A (en) | Method for extracting natural gas hydrate through CO2/N2 underground replacement | |
| CN103343678B (en) | System and method for exploiting water-soluble gas by injecting carbon dioxide | |
| CA2840323C (en) | An oil recovery process with composition-adjustable multi-component thermal fluid (mctf) | |
| CA3143888A1 (en) | Enhanced carbon dioxide-based geothermal energy generation systems and methods | |
| CN109185083A (en) | A kind of supercritical carbon dioxide system for geothermal production of electricity and electricity-generating method | |
| CN208595036U (en) | A kind of supercritical carbon dioxide hot dry rock generating set that carbon dioxide is gone into the well | |
| CN103743580A (en) | Enhanced geothermal system development test device | |
| CN109630081A (en) | A kind of coal bed drilling note high pressure-temperature vapor strengthens coal bed gas drainage device and method | |
| CN105298569A (en) | Extracting and converting method for heat energy in coal field fire zone | |
| CN109083706A (en) | A kind of supercritical carbon dioxide hot dry rock electricity generation system with carbon dioxide sequestration | |
| CN208950785U (en) | A kind of supercritical carbon dioxide system for geothermal production of electricity | |
| CN104785073A (en) | Carbon dioxide capture, power generation and sequestration system utilizing terrestrial heat | |
| CN117052366B (en) | Method for in-situ exploitation and energy efficient utilization of deep organic rock ore layer | |
| CN107476786B (en) | A kind of coal bed gas pumping method of ultrasonic wave and Far-infrared Heating synergistic effect | |
| CN103510934B (en) | The exploitation method of a kind of land combustible ice and system | |
| CN205840859U (en) | The device of power-plant flue gas efficiently extracting natural gas hydrate | |
| CN207568572U (en) | A kind of simulated injection CO2With calcium lime powder exploitation of gas hydrate experimental provision | |
| CN105735958A (en) | Method and system for increasing coal bed gas permeability based on water vapor injection | |
| CN208594976U (en) | A kind of supercritical carbon dioxide hot dry rock generating set of indirect heat exchange |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |