CN105351157A - Enhanced geothermal energy medium and low temperature power generation system - Google Patents
Enhanced geothermal energy medium and low temperature power generation system Download PDFInfo
- Publication number
- CN105351157A CN105351157A CN201510854302.XA CN201510854302A CN105351157A CN 105351157 A CN105351157 A CN 105351157A CN 201510854302 A CN201510854302 A CN 201510854302A CN 105351157 A CN105351157 A CN 105351157A
- Authority
- CN
- China
- Prior art keywords
- power generation
- medium
- heat
- enhancement mode
- low
- 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.)
- Pending
Links
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
-
- 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
- Engineering & Computer Science (AREA)
- 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)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The embodiment of the invention discloses an enhanced geothermal energy medium and low temperature power generation system which comprises a heat exchanging system and a power generation system, wherein the heat exchanging system is provided with an underground heat exchanger, a water outlet pipe and a water inlet pipe; the water outlet pipe and the water inlet pipe are connected with an evaporator; heat enters the power generation system through the heat exchanging system; the evaporator in the power generation system applies work to convert a cyclic medium into high-temperature high-pressure gas, converts pressure energy and thermal energy into mechanical energy through a screw expander, and generates electricity through an electric generator. After power generation, a gas-liquid two-phase medium is converted into the liquid state through a condenser, and a medium pump pumps the medium into the evaporator to complete circulation. The cyclic media of the heat exchanging system are specially treated softened water, and the cyclic medium of the power generation system is tetrafluoroethane. The enhanced geothermal energy medium and low temperature power generation system is economically affordable, environment-friendly, safe, reliable, and long in service life, forms excellent compensation for power generation through traditional energy, and fully meets the policy of constructing and developing a microgrid advocated by China.
Description
Technical field
The present invention relates to micro-capacitance sensor field, particularly low-temperature generating system in a kind of enhancement mode underground heat.
Background technique
Micro-capacitance sensor (micro-grid or microgrid); also microgrid is translated into; refer to collected by distributed power source, energy storage device, energy conversion device, associated loadings and monitoring, protective gear be small-sizedly transported to electric system; be one can teaching display stand control, the autonomous system of protect and manage; both can be incorporated into the power networks with external electrical network, also can isolated operation.
Enhancement mode geothermal system is that general temperature is greater than 200 DEG C, the thousands of rice of buried depth, the inner high heat rock mass that there is not fluid or only have a small amount of underground fluid.The composition of this rock mass can alter a great deal, and the overwhelming majority has been that the middle acidity since Mesozoic Era invades Ren Yan, but also can be the metamorphic rock of Middle Cenozoic, or even the block sedimentary rock that thickness is huge.
Geothermal gradient, also known as " geothermal gradient " or " geothermal gradient ", refers to the growth rate that the formation temperature that the earth does not affect by atmospheric temperature increases with the degree of depth.Represent the parameter of earth interior non-uniform temperature distributed degrees.Different ground temperature Grad is different, and the temperature value of general buried depth more depths is higher.
Along with improving constantly of national economy, also increasing to the consumption of the energy, along with traditional energy utilizes insufficient, pollution that is that bring is also more and more serious, the cinder that such as coal burning produces and flue gas etc. can cause environmental pollution, therefore, in order to reduce environmental pollution, research and exploitation new energy have become an important goal of sustainable development.In new energy, the features such as the geothermal power of earth interior is large owing to having reserves, pollution-free, are also exploited by people more and more and utilize.
The characteristic of micro-capacitance sensor agrees with the growth requirement of Contemporary China power industry very much, is the potential selection of high-quality solving China electric power industry development problem.In recent years, micro-capacitance sensor appears in the energy relevant policies file of central authorities and each rank local government, and the state key research and development such as multiple " 863 " and " 973 " about micro-capacitance sensor is planned and also in succession set up the project.Along with the expansion of various places micro-capacitance sensor demonstration project, the using value of micro-capacitance sensor obtains localization checking, and stronger support policy also can correspondingly be put into effect.
Summary of the invention
Embodiments providing low-temperature generating system in a kind of enhancement mode underground heat, is one not groundwater abstraction, to utilize in geothermal power the power generation system that cryogenically heat energy is power source.
The embodiment of the invention discloses following technological scheme:
A kind of enhancement mode heat-supply system based upon geothermal energy, is characterized in that, it comprises heat exchange series and to unify power generation system.Wherein,
Heat-exchange system is a closed circulatory system, and system comprises subterranean heat exchanger, outlet pipe and intake pipe.System is absorbed heat by subterranean heat exchanger metal outer wall, then is absorbed heat by circulating water secondary;
Outlet pipe is connected with vaporizer with intake pipe, and outlet pipe is provided with small pump and water supply tank, and is provided with valve and filter, and circulating water through valve and filter, flows into subterranean heat exchanger by recycle pump by outlet pipe, completes circulation;
Vaporizer is by outlet conduit connecting screw rod decompressor, and centre is provided with main valve and regulating valve;
Screw expander connects generator, and generator connects condenser;
Condenser is connected with medium pump, and centre is provided with medium and supplements case;
Medium pump is connected with vaporizer, and medium HFC-134a is pumped into vaporizer by medium pump, completes circulation.
Low-temperature generating system in a kind of enhancement mode underground heat that embodiment of the present disclosure provides, utilize enhancement mode underground heat and geothermal gradient principle, in underground, underground heat exchange system is installed, under deep layer rock stratum, circulating water in heat exchanger can utilize the middle low temperature heat energy of deeper subsurface and power generation system to carry out exchange heat, and power generation system utilizes heat energy to generate electricity for power source.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.
The structural representation of low-temperature generating system in a kind of enhancement mode underground heat that accompanying drawing provides according to embodiment for the present invention;
Comprise in the accompanying drawings: 1, subterranean heat exchanger; 2, outlet pipe; 3, intake pipe; 4, valve; 5, small pump; 6, water supply tank; 7, vaporizer; 8, filter; 9, recycle pump; 10, main valve; 11, regulating valve; 12, screw expander; 13, generator; 14, condenser; 15, medium supplements case; 16, medium pump; 17, end valve.
Embodiment
Ground heat exchanger 1 is located in enhancement mode underground heat rock stratum, softening circulating water is injected ground heat exchanger 1 by intake pipe 3, outlet pipe 2 is provided with in ground heat exchanger 1, circulating water connects vaporizer 7 from outlet pipe 2 through valve 4, middle small pump 5 in parallel and water supply tank 6, and be provided with filter 8, flow into intake pipe 3 finally by recycle pump 9, enter ground heat exchanger 1, complete source part circulation.
The other end, circulatory mediator HFC-134a injected media is supplemented case 15, medium pumps into vaporizer 7 through pipeline by medium pump 16, vaporizer 7 is by becoming high temperature and high pressure gas by medium hard, screw expander 12 is entered through main valve 10 and regulating valve 11, the pressure energy of dielectric gas is become mechanical energy with thermal power transfer by expansive screw machine 12, and connect generator, changes mechanical energy is electric energy by generator.
Gas-liquid two-phase medium condenses after acting is liquid by condenser 14, and medium supplements case 15 and supplements intrasystem HFC-134a at any time, and condensed liquid medium is pumped into vaporizer by medium pump 16, and centre establishes end valve 17 to control.
In addition, in a kind of enhancement mode underground heat provided by the invention, low-temperature generating system also has following features:
(1) be generally suitable for, flexibility is high.Geothermal gradient is prevalent in the earth's crust, so the technical program is not by the restriction in territory, seedbed, ground, such as, comprises the natural energy sources such as soil, well water, lake, seawater, low-temperature generating system strong adaptability in the enhancement mode underground heat that this programme is provided.In addition, the quantity of heat exchanger and the buried degree of depth can be determined according to the size of generated energy, and quantity and the buried degree of depth that suitably can increase heat exchanger produce enough electric power with guarantee system.
(2) stability is high, and Security is good.Utilize geothermal energy resources by season, weather, the effect of natural conditions such as round the clock, stability is higher, and ground heat exchanger buried depth, in below ground 1000-5000 rice, has no effect to surface structures.
(3) renewable.Utilize geothermal power for extraneous heat supply, do not consume any fossil resource, geothermal power is supplemented at any time at earth interior.
(4) energy-conserving and environment-protective.Not pumping underground hot water, does not also use underground water, not polluted source, carries out cold and hot exchange, does not produce waste water,waste gas and industrial residue, and greatly can reduce power consumption, energy-conserving and environment-protective by means of only exchanger tube wall and underground rock stratum.
(5) Economy is high.System utilizes geothermal power to generate electricity, and save a large amount of line arrangement expense and Switching Station construction cost, and cost of electricity-generating is far below other generations of electricity by new energy.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a low-temperature generating system in enhancement mode underground heat, is characterized in that, it comprises heat-exchange system, power generation system.
Wherein, described heat-exchange system comprises subterranean heat exchanger, outlet pipe and intake pipe, outlet pipe is connected with vaporizer with intake pipe, cyclic softening water is injected by intake pipe, circulating water is utilized to realize underground exchange heat, and done work by screw expander according to the lower boiling feature of power generation cycle medium HFC-134a, drive electrical generators generates electricity.
2. low-temperature generating system in enhancement mode underground heat according to claim 1, is characterized in that, heat-exchange system is a closed circulatory system, and system comprises subterranean heat exchanger, outlet pipe and intake pipe.Subterranean heat exchanger metal outer wall is absorbed heat, then is absorbed heat by circulating water secondary and circulate.
3. low-temperature generating system in enhancement mode underground heat according to claim 2, it is characterized in that, outlet pipe is connected with vaporizer with intake pipe.
4. low-temperature generating system in enhancement mode underground heat according to claim 3, it is characterized in that, outlet pipe is provided with small pump and water supply tank, and is provided with valve and filter, and circulating water flows into subterranean heat exchanger by recycle pump, completes circulation.
5. low-temperature generating system in enhancement mode underground heat according to claim 4, is characterized in that, vaporizer is by pipeline connecting screw rod decompressor, and centre is provided with main valve and modulating valve.
6. low-temperature generating system in enhancement mode underground heat according to claim 5, is characterized in that, screw expander connects generator, and generator connects condenser.
7. low-temperature generating system in enhancement mode underground heat according to claim 6, it is characterized in that, condenser is connected with medium pump, and centre is provided with medium and supplements case.
8. low-temperature generating system in enhancement mode underground heat according to claim 7, it is characterized in that, medium pump is connected with vaporizer, and medium is pumped into vaporizer, completes circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510854302.XA CN105351157A (en) | 2015-12-01 | 2015-12-01 | Enhanced geothermal energy medium and low temperature power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510854302.XA CN105351157A (en) | 2015-12-01 | 2015-12-01 | Enhanced geothermal energy medium and low temperature power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105351157A true CN105351157A (en) | 2016-02-24 |
Family
ID=55327200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510854302.XA Pending CN105351157A (en) | 2015-12-01 | 2015-12-01 | Enhanced geothermal energy medium and low temperature power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105351157A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829722A (en) * | 2017-10-30 | 2018-03-23 | 中国石油大学(华东) | A kind of deep geothermal heat air water two-phase shaft bottom measurement apparatus and data processing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1324929A (en) * | 1971-11-15 | 1973-07-25 | Magna Energy Inc | Geothermal energy system |
| US3757516A (en) * | 1971-09-14 | 1973-09-11 | Magma Energy Inc | Geothermal energy system |
| JPS5467837A (en) * | 1977-11-09 | 1979-05-31 | Mitsui Eng & Shipbuild Co Ltd | Method of geothermal generation of electricity |
| CN85106574A (en) * | 1985-08-31 | 1987-03-18 | 奥马蒂系统公司 | Utilize the modified model cascade power station of low temperature and middle temperature source fluid |
| CN101139976A (en) * | 2007-10-10 | 2008-03-12 | 张慧书 | Method and device for electricity generation by using geothermal energy |
| CN102639819A (en) * | 2009-05-07 | 2012-08-15 | 西门子公司 | Method for generating electrical energy, and use of a working substance |
| CN205225594U (en) * | 2015-12-01 | 2016-05-11 | 邢培奇 | Low temperature power generation system in geothermol power |
-
2015
- 2015-12-01 CN CN201510854302.XA patent/CN105351157A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3757516A (en) * | 1971-09-14 | 1973-09-11 | Magma Energy Inc | Geothermal energy system |
| GB1324929A (en) * | 1971-11-15 | 1973-07-25 | Magna Energy Inc | Geothermal energy system |
| JPS5467837A (en) * | 1977-11-09 | 1979-05-31 | Mitsui Eng & Shipbuild Co Ltd | Method of geothermal generation of electricity |
| CN85106574A (en) * | 1985-08-31 | 1987-03-18 | 奥马蒂系统公司 | Utilize the modified model cascade power station of low temperature and middle temperature source fluid |
| CN101139976A (en) * | 2007-10-10 | 2008-03-12 | 张慧书 | Method and device for electricity generation by using geothermal energy |
| CN102639819A (en) * | 2009-05-07 | 2012-08-15 | 西门子公司 | Method for generating electrical energy, and use of a working substance |
| CN205225594U (en) * | 2015-12-01 | 2016-05-11 | 邢培奇 | Low temperature power generation system in geothermol power |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829722A (en) * | 2017-10-30 | 2018-03-23 | 中国石油大学(华东) | A kind of deep geothermal heat air water two-phase shaft bottom measurement apparatus and data processing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | Geothermal power generation in China: Status and prospects | |
| US20200072199A1 (en) | System for the non conventional production of electrical power from a geothermal source and relevant party | |
| Kaplanoğlu et al. | Use of abandoned oil wells in geothermal systems in Turkey | |
| Wendt et al. | Flexible Geothermal Power Generation utilizing Geologic Thermal Energy Storage (Final Seedling Project Report) | |
| Yazici | Energy and exergy based evaluation of the renovated Afyon geothermal district heating system | |
| Yu et al. | Enhanced heat extraction for deep borehole heat exchanger through the jet grouting method using high thermal conductivity material | |
| CN205225594U (en) | Low temperature power generation system in geothermol power | |
| CN107270371A (en) | A kind of same layer recharge electric heating pump type cascade utilization heating system | |
| Gluyas et al. | Geothermal potential of the global oil industry | |
| Fyk et al. | Resource evaluation of geothermal power plant under the conditions of carboniferous deposits usage in the Dnipro-Donetsk depression | |
| CN105352003A (en) | Enhanced geothermal energy heat supply system | |
| CN104653417A (en) | Dry-hot-rock geothermal power generation system using ammonia as intermediate medium | |
| CN205351454U (en) | Deep geothermol power rock heating system | |
| Parri et al. | The history of geothermal electric power plants on the Island of Ischia, Italy | |
| Rybach | Geothermal Sustainability or Heat Mining? | |
| CN103147941A (en) | Geothermal energy generating set | |
| CN105351157A (en) | Enhanced geothermal energy medium and low temperature power generation system | |
| CN202470523U (en) | Device for acquiring heat from crust temperature-increasing layer | |
| Forsberg | Gigawatt-year geothermal energy storage coupled to nuclear reactors and large concentrated solar thermal systems | |
| CN105605645A (en) | Heating system of deep geothermal rock | |
| CN105371341A (en) | Reinforced geothermal heating system | |
| CN205174512U (en) | Enhancement mode heat supply system based upon geothermal energy | |
| Aljedaani et al. | An Eco-Friendly and Low Carbon Footprint Water Treatment Technology for Produced Water Recycling | |
| CN205174513U (en) | Enhancement mode geothermol power heating system | |
| Karami et al. | Recent progress in geothermal heat pumps |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Xing Peiqi Document name: Notification of Passing Examination on Formalities |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160224 |
|
| WD01 | Invention patent application deemed withdrawn after publication |