CN103743580A - Enhanced geothermal system development test device - Google Patents
Enhanced geothermal system development test device Download PDFInfo
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- CN103743580A CN103743580A CN201310640101.0A CN201310640101A CN103743580A CN 103743580 A CN103743580 A CN 103743580A CN 201310640101 A CN201310640101 A CN 201310640101A CN 103743580 A CN103743580 A CN 103743580A
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Abstract
The invention discloses an enhanced geothermal system development test device. The enhanced geothermal system development test device comprises a carbon dioxide steel cylinder, a carbon dioxide supercritical transportation device, a simulation hot dry rock reactor, a carbon dioxide turbine, a high-pressure frequency conversion type plunger pump, and a PLC data acquisition system. Carbon dioxide in the carbon dioxide steel cylinder passes through a carbon dioxide flow regulating valve and a pressure regulating valve, enters the carbon dioxide supercritical transportation device for being pressurized to a high pressure, and then enters the simulation hot dry rock reactor for temperature rise. The high-temperature high-pressure carbon dioxide CO2 after temperature rise enters the carbon dioxide turbine. The carbon dioxide turbine is used to drive a generator or a power machine for energy conversion. The low-grade carbon dioxide coming out from the carbon dioxide turbine enters the heat exchanger. The carbon dioxide after heat exchange is sent back to the simulation hot dry rock reactor through the high-pressure frequency conversion type plunger pump for cyclic utilization.
Description
Technical field
The present invention relates to hot dry rock energy recovery field, particularly the hot dry rock energy recovery system take carbon dioxide as working medium.Specifically a kind of enhancement mode geothermal system development experiments device.
Background technology
Underground heat is a kind of energy from earth interior.It is estimated, the heat that is stored in earth interior is about 1.7 hundred million times of global coal reserves, is equivalent to the heat of 1,000 hundred million barrels of oil every year from earth interior through earth's surface dispersed heat.In new and renewable sources of energy extended familys, underground heat is one of competitive energy.
Hot dry rock refers to that general temperature is greater than 200 ℃, the thousands of rice of buried depth, the inner high temperature rock mass that does not have fluid or only have a small amount of underground fluid.Being stored in caloric requirement in hot dry rock forms enhancement mode geothermal system by artificial fracturing and just can exploit.The exploratory development of strengthening hot dry rock geothermal energy resources is to promote the fast-developing key point with breaking through of Chinese geothermal energy resources scale utilization, especially geothermal power generation.
Using water as hot dry rock heat-conducting flow, may cause the change of hot dry rock fissured structure or the obstruction of heat passage, and the physics and chemistry character of carbon dioxide is very favourable for operation EGS system.Swelling property is large, and viscosity is lower, very low to the dissolving validity of rock forming mineral as solvent.Global warming, the one of the main reasons that produces extreme climate disaster, by the CO of trapping purifying
2as hot dry rock heat energy exploitation working medium, not only can extract and effectively eliminate fouling by acceleration energy, realize effective utilization of geothermal energy, and agree with greenhouse gases geology and store this imagination.Using carbon dioxide as hot dry rock heat energy, exploitation working medium can realize economic benefit and environmental benefit simultaneously.
Summary of the invention
The object of this invention is to provide a kind of enhancement mode geothermal system development experiments device, this system, take carbon dioxide as hot dry rock heat-conducting flow, is that a kind of heat utilization rate is high, energy consumes the geothermal energy development simulation system low, treatment effect is good.
Technical scheme of the present invention is achieved in the following ways:
The present invention includes carbon dioxide steel cylinder, CO 2 supercritical conveying device, simulation hot dry rock reactor, carbon dioxide turbine, high-pressure frequency-conversion ram pump, heat interchanger, temperature sensor, pressure transducer, flow control valve, pressure-regulating valve, computing machine, plc data acquisition system, it is characterized in that from the carbon dioxide of carbon dioxide steel cylinder, through carbon dioxide flow variable valve and pressure-regulating valve, carrying out entering after flow control and pressure regulate CO 2 supercritical conveying device increases to high pressure and enter simulation hot dry rock reactor and heat up, High Temperature High Pressure carbon dioxide after intensification flows to into carbon dioxide turbine, carbon dioxide turbine drives generator or power machine to carry out Conversion of Energy, carbon dioxide turbine more low-grade carbon dioxide out carries out heat interchange by heat interchanger and process water, through the carbon dioxide after heat interchange, by high-pressure frequency-conversion ram pump, being sent back to simulation hot dry rock reactor circulates, at high-pressure plunger pump, enter in simulation hot dry rock reactor pipeline and be provided with carbon dioxide circular flow variable valve and non-return valve, be respectively used to regulating and controlling carbon dioxide flow and prevent carbon dioxide adverse current.
Between the thermal medium import of simulation hot dry rock reactor and outlet, be provided with flow control valve and pressure-regulating valve, on the carbon dioxide inlet of simulation hot dry rock reactor and export pipeline, be provided with temperature sensor and pressure transducer, flow control valve, pressure-regulating valve, temperature sensor and pressure transducer, signal wire and computing machine are separately connected, and computing machine and plc data acquisition system are connected.
The present invention has the following advantages:
1, adopt carbon dioxide as hot dry rock heat circulation working medium, good fluidity, the thermal efficiency is high, can reduce or stop the Corrosion blockage of follow-up equipment.
2, through the supercritical carbon dioxide of hot dry rock reactor, through steam turbines and process water heat interchanger, carry out the secondary utilization of energy successively, can be used for hot dry rock generating and service water heating, make full use of the heat energy that carbon dioxide carries, improve heat utilization rate.Carbon dioxide after the heat exchange of service water heat interchanger returns to and to simulation hot dry rock reactor, carries out repetitive cycling heat energy and carry, and has saved CO_2 Resource.
3, computing machine and plc data acquisition system, can realize simulation hot dry rock temperature of reactor, simulation hot dry rock reactor outlet carbon dioxide temperature and pressure, circulate carbon dioxide CO
2the on-line monitoring of temperature and pressure.
Accompanying drawing explanation
Accompanying drawing 1 is schematic flow sheet of the present invention.
Accompanying drawing 1 description of symbols: 1-carbon dioxide steel cylinder, 2-carbon dioxide flow variable valve, 3-pressure-regulating valve, 4-CO 2 supercritical conveying device, 5-simulation hot dry rock reactor, 6-temperature control valve (TCV), 7-carbon dioxide turbine, 8-heat interchanger, 9-service water flow control valve, 10-high-pressure frequency-conversion ram pump, 11-carbon dioxide circular flow variable valve, 12-non-return valve, 13-computing machine, 14-plc data acquisition system.
Embodiment
For further disclosing technical scheme of the present invention, below in conjunction with Figure of description, by embodiment, the present invention will be described in more detail:
The present invention includes carbon dioxide steel cylinder 1, CO 2 supercritical conveying device 4, simulation hot dry rock reactor 5, carbon dioxide turbine 7, high-pressure frequency-conversion ram pump 10, heat interchanger 8, temperature sensor, pressure transducer, flow control valve, pressure-regulating valve, computing machine 13, plc data acquisition system 14, it is characterized in that from the carbon dioxide of carbon dioxide steel cylinder, through carbon dioxide flow variable valve 2 and pressure-regulating valve 3, carrying out entering after flow control and pressure regulate CO 2 supercritical conveying device 4 increases to high pressure and enter simulation hot dry rock reactor 5 and heat up, High Temperature High Pressure carbon dioxide after intensification flows to into carbon dioxide turbine 7, carbon dioxide turbine drives generator or power machine to carry out Conversion of Energy, carbon dioxide turbine more low-grade carbon dioxide out carries out heat interchange by heat interchanger 8 and process water, through the carbon dioxide after heat interchange, by high-pressure frequency-conversion ram pump 10, being sent back to simulation hot dry rock reactor circulates, at high-pressure plunger pump, enter in simulation hot dry rock reactor pipeline and be provided with carbon dioxide circular flow variable valve 11 and non-return valve 12, be respectively used to regulating and controlling carbon dioxide flow and prevent carbon dioxide adverse current.In the process water import of heat interchanger, be provided with process water flow control valve 9 and implement the control to process water.
Between the thermal medium import of simulation hot dry rock reactor and outlet, be provided with flow control valve and pressure-regulating valve, on the carbon dioxide inlet of simulation hot dry rock reactor and export pipeline, be provided with temperature sensor and pressure transducer, flow control valve, pressure-regulating valve, temperature sensor and pressure transducer signal wire and computing machine is separately connected, and computing machine and plc data acquisition system are connected.Adopt carbon dioxide as hot dry rock heat circulation working medium, good fluidity, the thermal efficiency is high, can reduce or stop the Corrosion blockage of follow-up equipment.
Supercritical carbon dioxide through hot dry rock reactor carries out the secondary utilization of energy through steam turbines and process water heat interchanger successively, can be used for hot dry rock generating and service water heating, make full use of the heat energy that carbon dioxide carries, improve heat utilization rate.Carbon dioxide after the heat exchange of service water heat interchanger returns to and to simulation hot dry rock reactor, carries out repetitive cycling heat energy and carry, and has saved CO_2 Resource.
Computing machine and plc data acquisition system, can realize the on-line monitoring of simulation hot dry rock temperature of reactor, simulation hot dry rock reactor outlet carbon dioxide temperature and pressure, circulate carbon dioxide temperature and pressure.
Claims (2)
1. an enhancement mode geothermal system development experiments device, comprise carbon dioxide steel cylinder, CO 2 supercritical conveying device, simulation hot dry rock reactor, carbon dioxide turbine, high-pressure frequency-conversion ram pump, heat interchanger, temperature sensor, pressure transducer, flow control valve, pressure-regulating valve, computing machine, plc data acquisition system, it is characterized in that from the carbon dioxide of carbon dioxide steel cylinder, through carbon dioxide flow variable valve and pressure-regulating valve, carrying out entering after flow control and pressure regulate CO 2 supercritical conveying device increases to high pressure and enter simulation hot dry rock reactor and heat up, High Temperature High Pressure carbon dioxide CO after intensification
2flow to into carbon dioxide turbine, carbon dioxide turbine drives generator or power machine to carry out Conversion of Energy, carbon dioxide turbine more low-grade carbon dioxide out carries out heat interchange by heat interchanger and process water, through the carbon dioxide after heat interchange, by high-pressure frequency-conversion ram pump, being sent back to simulation hot dry rock reactor circulates, at high-pressure plunger pump, enter in simulation hot dry rock reactor pipeline and be provided with carbon dioxide circular flow variable valve 1 and non-return valve, be respectively used to regulating and controlling carbon dioxide flow and prevent carbon dioxide adverse current.
2. a kind of enhancement mode geothermal system development experiments device according to claim 1, it is characterized in that being provided with flow control valve and pressure-regulating valve between the thermal medium import of simulation hot dry rock reactor and outlet, on the carbon dioxide inlet of simulation hot dry rock reactor and export pipeline, be provided with temperature sensor and pressure transducer, flow control valve, pressure-regulating valve, temperature sensor and pressure transducer, signal wire and computing machine are separately connected, and computing machine and plc data acquisition system are connected.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509813A (en) * | 2016-01-08 | 2016-04-20 | 济南大学 | Heat conduction type geothermal field development and protection simulation device and heat conduction type geothermal field development and protection simulation method |
| CN106872651A (en) * | 2017-04-06 | 2017-06-20 | 重庆大学 | The experimental rig and analogy method of a kind of enhanced underground heat exploitation simulation |
| CN107014974A (en) * | 2016-11-28 | 2017-08-04 | 中国石油大学(华东) | The method that enhanced geothermal system reservoir heat energy recovery rate is tested for the analogue experiment installation of enhanced geothermal system and using it |
| CN109406753A (en) * | 2018-10-30 | 2019-03-01 | 河南理工大学 | High temperature driven gas-liquid voluntarily circulating analog geothermal energy Mining Test device |
| CN109839286A (en) * | 2019-04-01 | 2019-06-04 | 中国石油大学(华东) | A kind of enhanced geothermal system exploitation imitative experimental appliance of hot dry rock and its experimental method |
| CN110675721A (en) * | 2019-09-30 | 2020-01-10 | 鸿蒙能源(山东)有限公司 | Multi-working-condition hot dry rock geothermal exploitation simulation equipment |
| CN110794117A (en) * | 2019-11-28 | 2020-02-14 | 吉林大学 | Hot dry rock laboratory simulation system and method with supercritical carbon dioxide as hot working medium |
| CN112554974A (en) * | 2020-11-03 | 2021-03-26 | 西安交通大学 | Non-compression distributed carbon dioxide power generation system |
| CN113049279A (en) * | 2021-02-28 | 2021-06-29 | 河北工业大学 | Vapor-liquid separation type medium-high temperature geothermal fluid experimental test system |
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| CN201934267U (en) * | 2010-01-27 | 2011-08-17 | 江西佳能新能源发展有限公司 | Environmentally-friendly energy-saving emission-reducing geothermal heat exploitation system |
| CN103216401A (en) * | 2013-04-24 | 2013-07-24 | 华北电力大学 | Hot dry rock power generation system applying Kalina circulation technology |
| CN203658074U (en) * | 2013-12-04 | 2014-06-18 | 中石化石油工程设计有限公司 | Enhancement-mode geothermal system exploitation test apparatus |
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| CN101696829A (en) * | 2009-10-30 | 2010-04-21 | 龚智勇 | Method for remotely transferring and storing geothermal energy, device and application thereof |
| CN201934267U (en) * | 2010-01-27 | 2011-08-17 | 江西佳能新能源发展有限公司 | Environmentally-friendly energy-saving emission-reducing geothermal heat exploitation system |
| CN103216401A (en) * | 2013-04-24 | 2013-07-24 | 华北电力大学 | Hot dry rock power generation system applying Kalina circulation technology |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509813A (en) * | 2016-01-08 | 2016-04-20 | 济南大学 | Heat conduction type geothermal field development and protection simulation device and heat conduction type geothermal field development and protection simulation method |
| CN105509813B (en) * | 2016-01-08 | 2017-03-15 | 济南大学 | A kind of heat-conduction-type geothermal field exploitation and protection analogue means and analogy method |
| CN107014974A (en) * | 2016-11-28 | 2017-08-04 | 中国石油大学(华东) | The method that enhanced geothermal system reservoir heat energy recovery rate is tested for the analogue experiment installation of enhanced geothermal system and using it |
| CN107014974B (en) * | 2016-11-28 | 2019-05-21 | 中国石油大学(华东) | Imitative experimental appliance for enhanced geothermal system and the method for testing enhanced geothermal system reservoir thermal energy recovery rate using it |
| CN106872651A (en) * | 2017-04-06 | 2017-06-20 | 重庆大学 | The experimental rig and analogy method of a kind of enhanced underground heat exploitation simulation |
| CN109406753A (en) * | 2018-10-30 | 2019-03-01 | 河南理工大学 | High temperature driven gas-liquid voluntarily circulating analog geothermal energy Mining Test device |
| CN109839286A (en) * | 2019-04-01 | 2019-06-04 | 中国石油大学(华东) | A kind of enhanced geothermal system exploitation imitative experimental appliance of hot dry rock and its experimental method |
| CN109839286B (en) * | 2019-04-01 | 2023-11-07 | 中国石油大学(华东) | Dry-hot rock enhanced geothermal system development simulation experiment device and experiment method thereof |
| CN110675721A (en) * | 2019-09-30 | 2020-01-10 | 鸿蒙能源(山东)有限公司 | Multi-working-condition hot dry rock geothermal exploitation simulation equipment |
| CN110794117A (en) * | 2019-11-28 | 2020-02-14 | 吉林大学 | Hot dry rock laboratory simulation system and method with supercritical carbon dioxide as hot working medium |
| CN110794117B (en) * | 2019-11-28 | 2021-12-21 | 吉林大学 | Hot dry rock laboratory simulation system and method with supercritical carbon dioxide as hot working medium |
| CN112554974A (en) * | 2020-11-03 | 2021-03-26 | 西安交通大学 | Non-compression distributed carbon dioxide power generation system |
| CN112554974B (en) * | 2020-11-03 | 2021-11-19 | 西安交通大学 | Non-compression distributed carbon dioxide power generation system |
| CN113049279A (en) * | 2021-02-28 | 2021-06-29 | 河北工业大学 | Vapor-liquid separation type medium-high temperature geothermal fluid experimental test system |
| CN113049279B (en) * | 2021-02-28 | 2022-04-19 | 河北工业大学 | Vapor-liquid separation type medium-high temperature geothermal fluid experimental test system |
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Effective date of registration: 20171115 Address after: 257026 No. 49, Ji'nan Road, Dongying District, Shandong, Dongying Co-patentee after: SINOPEC ENERGY CONSERVATION AND ENVIRONMENTAL PROTECTION ENGINEERING TECHNOLOGY Co.,Ltd. Patentee after: SINOPEC PETROLEUM ENGINEERING Corp. Co-patentee after: Shandong Sairui Petroleum Technology Development Co.,Ltd. Address before: 257026 No. 49, Ji'nan Road, Dongying District, Shandong, Dongying Co-patentee before: Shandong Sairui Petroleum Technology Development Co.,Ltd. Patentee before: SINOPEC PETROLEUM ENGINEERING Corp. |
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Effective date of registration: 20210916 Address after: 100020 Building 2, Chaoyang Gate office area, Sinopec, 9 jishikou Road, Chaoyang District, Beijing Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: SINOPEC PETROLEUM ENGINEERING Corp. Address before: 257026 No. 49, Ji'nan Road, Dongying District, Shandong, Dongying Patentee before: SINOPEC PETROLEUM ENGINEERING Corp. Patentee before: SINOPEC ENERGY CONSERVATION AND ENVIRONMENTAL PROTECTION ENGINEERING TECHNOLOGY Co.,Ltd. Patentee before: SHANDONG SAIRUI PETROLEUM TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Effective date of registration: 20221118 Address after: 100027 Chaoyangmen North Street, Chaoyang District, Chaoyang District, Beijing Patentee after: SINOPEC Group Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: SINOPEC PETROLEUM ENGINEERING Corp. Address before: 100020 Building 2, Chaoyang Gate office area, Sinopec, 9 jishikou Road, Chaoyang District, Beijing Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: SINOPEC PETROLEUM ENGINEERING Corp. |
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