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313 results about "Geothermal power" patented technology

Geothermal power is power generated by geothermal energy. Technologies in use include dry steam power stations, flash steam power stations and binary cycle power stations. Geothermal electricity generation is currently used in 26 countries, while geothermal heating is in use in 70 countries.

Liquid air energy storage and terrestrial heat coordinated underground space air regulation and control system and method

The invention relates to a liquid air energy storage and terrestrial heat coordinated underground space air regulation and control system and method. Comprising a first-stage compressor, a second-stage compressor, a third-stage compressor, an expansion refrigerator, a first-stage compression heat exchanger, a second-stage compression heat exchanger, a third-stage compression heat exchanger, a cold box, a separator, a liquid air storage tank, a cryogenic pump, an evaporator, a cold storage circulating pump, a cold storage box, a compression heat exchange circulating pump, a compression heat storage box, a first heater, a second heater and a third heater. The system comprises a first air expander, a second air expander, a third air expander and a generator. The regeneration heater is used for guiding the compression heat generated by the compressor into the regeneration heater for regeneration and / or guiding the geothermal energy output by the geothermal energy output end into the regeneration heater for regeneration; the rotary wheel dehumidification device is used for performing cryogenic drying on the wet air; the fresh air processing unit is composed of a fresh air filter, a regeneration fan, a regeneration filter and an air supply fan.
Owner:GUODIAN SCI & TECH RES INST

Middle-deep layer buried pipe heat exchanger seepage thermal response rapid prediction method based on artificial intelligence

The invention relates to the technical field of geothermal energy utilization and underground heat exchange, in particular to a medium-deep layer buried pipe heat exchanger seepage thermal response rapid prediction method based on artificial intelligence, and the method comprises the steps: obtaining temperature field snapshot data of a medium-deep layer buried pipe heat exchanger system under different operation conditions; performing orthogonal decomposition on the temperature field snapshot data to obtain main modal characteristics and corresponding amplitudes; the parameters of all the operation conditions serve as input variables, all the main modal features and the corresponding amplitudes serve as output variables, a BP neural network is trained, and an artificial intelligence agent model is constructed; and obtaining parameters of a target operation condition, inputting the parameters into the artificial intelligence agent model, outputting the amplitude of each main mode under the target operation condition, reconstructing a temperature field, and completing rapid prediction of the seepage thermal response of the medium-deep layer buried pipe heat exchanger under the target operation condition. According to the method, the temperature field distribution of the DBHE system under the action of underground water seepage can be quickly predicted.
Owner:LANZHOU JIAOTONG UNIV

Combined heat and power system and control method thereof

The invention provides a combined heat and power system and a control method thereof, and relates to the technical field of combined heat and power. The system comprises a fuel gas heat and power cogeneration subsystem, a heat supply subsystem and a fused salt heat storage subsystem, the fuel gas heat and power cogeneration subsystem is used for fuel gas power supply, the fused salt heat storage subsystem can convert solar energy and / or flue gas generated by power supply into heat energy of high-temperature fused salt to be stored, and the heat supply subsystem conducts primary heating on heat supply return water through geothermal energy; and flue gas and / or high-temperature fused salt generated by power supply are / is used for conducting secondary heating on heat supply return water. Geothermal energy, solar energy and fused salt heat storage are coupled, and renewable energy sources are fully utilized for heat and power cogeneration, so that the power supply requirement and the heat supply requirement of a user are met. In the ground source heat pump unit, primary heating is conducted through geothermal energy, heat supply return water is heated into warm water, then the warm water is secondarily heated into hot water through smoke in the gas heat and power cogeneration system, the compression ratio of a compressor in a ground source heat pump can be reduced, and power consumption of the compressor is reduced.
Owner:STATE POWER INVESTMENT CORPORATION RESEARCH INSTITUTE

Geothermal well recharge regulation and control method combined with thermal breakthrough prediction model

The invention discloses a geothermal well recharge regulation and control method combined with a thermal breakthrough prediction model, and particularly relates to the field of geothermal energy development and utilization. According to the method, basic parameters of a thermal reservoir, operation parameters of a recharge system and water quality parameters of a recharge water source are collected and standardized to form a data set, so that a thermal breakthrough risk factor matrix is constructed; a thermal breakthrough prediction model is established by fusing a coupling analysis algorithm and an improved long-short-term memory neural network; after K-fold cross validation and dynamic error compensation algorithm correction, outputting a standard prediction parameter set and a thermal reservoir permeation partition; dividing a thermal breakthrough risk grade by combining the risk factor matrix and geothermal utilization requirements, setting a regulation and control threshold value, and establishing a correction parameter; a regulation and control unit is formed based on the risk level and the permeation partition, a targeted regulation and control scheme is formulated, dynamic matching of the recharge state and the scheme is achieved through real-time monitoring of the Internet of Things, the thermal breakthrough and reservoir blockage risks are reduced, and the recharge stability and sustainability are improved.
Owner:XIXIAN NEW DISTRICT URBAN FACILITIES MANAGEMENT CO LTD +1

Efficient extraction equipment of deep geothermal exploitation well

The invention belongs to the technical field of geothermal energy development and utilization, and particularly relates to efficient extraction equipment for a deep geothermal exploitation well, which comprises a plurality of water pumping devices, the plurality of water pumping devices are sequentially communicated in series through a plurality of extension pipe fittings, and the water pumping device close to a wellhead is fixedly connected with a steel wire rope on hoisting equipment; the water pumping device comprises a water pumping mechanism, a well cementation assembly and a guide mechanism, the outer wall of the water pumping mechanism is sleeved with the well cementation assembly, the well cementation assembly is used for making friction contact with the well wall so as to keep the working position of the water pumping mechanism in a well, and the guide mechanism is arranged at the bottom end of the water pumping mechanism and used for guiding the water pumping mechanism to work. And the guide mechanism is used for smoothly lowering the water pumping mechanism into the well and keeping the water pumping mechanism coaxial with the well body. It is guaranteed that the water pumping mechanism is stably fixed in a well, smoothly lowered to the bottom of the well and always coaxially positioned with the well body, and the stability of extraction operation is improved.
Owner:CHINA UNIV OF MINING & TECH

Flow through process for thermal depolymerization and monomer repurposing using geothermal energy

A geothermal system including a heat-driven process system using heat extracted from a magma wellbore for driving a thermal process. The system includes a magma wellbore connected to the heat-driven process system in a closed loop. A heated heat transfer fluid conveys the heat from the magma wellbore to a reactor housing a decomposition reaction. The reactor can be a batch reactor, a continuous reactor, or a through-flow reactor. The heat provides the reaction temperature necessary for driving the decomposition reaction of a polymer to an end product. The heat can be provided directly by the heated heat transfer fluid, by an intermediate heat transfer fluid heated by the heated heat transfer fluid, or by a reaction medium heated by the heated heat transfer fluid.
Owner:ENHANCEDGEO HOLDINGS LLC

CNN-LSTM fused geothermal exploitation productivity optimization prediction system

The invention discloses a CNN-LSTM fused geothermal exploitation productivity optimization prediction system, which belongs to the technical field of geothermal productivity prediction, and comprises the following process modules: S1, data acquisition; s1-1, geological exploration equipment; s1-2, geothermal well monitoring equipment is used; s1-3, monitoring equipment of the heating system; s2, data preprocessing; s2-1, a missing value processing unit; s2-2, an abnormal value detection unit; s2-3, carrying out unit normalization; s3, a feature screening module; s3-1, a correlation analysis unit; and S4, a model construction module. The CNN-LSTM fused geothermal exploitation productivity optimization prediction system not only can realize comprehensive data coverage so that the model can accurately capture dynamic changes of a geothermal system, but also can reduce redundant variables through feature screening so as to realize accurate prediction, dynamic optimization and intelligent regulation and control of geothermal exploitation productivity; high-precision, high-efficiency and high-adaptability technical support is provided for scientific development of geothermal energy, and the geothermal energy is promoted to advance towards the predictable, controllable and sustainable direction.
Owner:HEBEI CHENGRE ENERGY TECH CO LTD

Geothermal energy and hydrogen energy comprehensive energy collaborative planning method based on double-layer optimization model

The invention discloses a geothermal energy and hydrogen energy comprehensive energy collaborative planning method based on a double-layer optimization model, and particularly relates to the technical field of energy collaborative planning. Based on the basic data, a double-layer optimization model is constructed, an upper-layer planning model takes energy system full-life-cycle total cost minimization as a first objective function, and a lower-layer operation model takes annual operation cost minimization of the energy system as a second objective function; a KKT conditional mathematical method is adopted, the double-layer optimization model is converted into a solvable single-layer linear programming model, and an optimal programming capacity configuration scheme of the terrestrial heat and hydrogen energy equipment is obtained; and outputting an optimal planning capacity configuration scheme. According to the method, through data processing and parameter acquisition, construction of a geothermal and hydrogen energy collaborative planning double-layer optimization model, model solving and scheme generation, and collaborative planning scheme output, the problems that planning and operation coupling is insufficient, and a geothermal and hydrogen energy collaborative mechanism cannot be modeled finely are solved.
Owner:XIONGAN LONGYUAN CLEAN ENERGY TECHNOLOGY CO LTD

Optimization design method for deep and shallow coupling ground source heat pump system based on geological layering

The invention relates to the technical field of geothermal energy utilization, and discloses a geological stratification-based deep and shallow coupling ground source heat pump system optimization design method, which comprises the following steps of S1, acquiring geological stratification information of a target site, and thermophysical parameters, hydraulic parameters and mechanical parameters of each stratification; s2, aiming at a deep heat exchanger element and a shallow heat exchanger element; s3, an operation weight vector is introduced and used for defining the dynamic distribution proportion of building loads borne by the deep heat exchange system and the shallow heat exchange system in the whole life cycle; s4, establishing an optimization model taking the minimization of the total cost of the whole life cycle as a target function; s5, solving the optimization model by adopting an optimization strategy to obtain an optimal solution; and S6, outputting an integrated optimization design scheme according to the optimal solution. The physical layout design and the dynamic operation strategy are subjected to integrated collaborative optimization, the stratum heat-water-force coupling effect is comprehensively considered, and the cost of the whole life cycle is minimized.
Owner:JILIN INST OF ARCHITECTURE & TECH

Intelligent operation management system for geothermal energy in severe cold area

The invention belongs to the technical field of ground source heat operation management, and particularly discloses an intelligent operation management system for geothermal energy in a severe cold area. The system comprises an acquired data verification module, a soil dynamic analysis module, a thermal imbalance risk prediction module and a control priority determination module. According to the method, geothermal operation data are collected and verified in real time, key indexes such as heating power, soil accumulated heat taking capacity and heat recovery rate are calculated, meteorological prediction data are combined to drive a soil heat transfer model to conduct prospective simulation, and a heat imbalance risk index is output. And the control priority of the heat supply quality and the soil heat imbalance is dynamically determined and output based on the risk index and the change trend thereof, so that the heat recovery capability of the soil is effectively maintained while the heat supply requirement is met, and meanwhile, the priority management direction between the heat supply quality guarantee and the soil heat imbalance prevention and control is defined; and therefore, effective balance is realized between maintaining the heating demand of the user and protecting the sustainability of terrestrial heat.
Owner:JILIN BILIAN NEW ENERGY TECH CO LTD

Multi-well cooperative enhanced heat exchange method for medium-deep layer ground temperature energy waterless exploitation

The invention relates to the technical field of geothermal energy development and utilization, and discloses a multi-well cooperative enhanced heat exchange method for medium-deep layer geothermal energy waterless exploitation. According to the method, an inverted-cone-shaped heat conduction network comprising a center main heat collecting well, an auxiliary heat conduction well array and a temperature-sensitive phase change heat conduction bridging grouting area is constructed. During operation, a low-temperature working medium is injected into the central well to reduce the temperature of the grouting area to be below the phase change temperature, phase change shrinkage of the microcapsules is triggered, the high-thermal-conductivity filler is induced to make contact with one another, a thermal-conductivity seepage network is constructed, and the thermal conductivity of the grouting area is converted into an enhanced state from a ground state. The auxiliary heat conduction well gathers far-field heat and transmits the far-field heat to the center well according to the gravity assisted heat pipe principle. According to the invention, the microstructure evolution of the material is driven by using a temperature field, the self-adaptive adjustment of the heat conductivity is realized, the heat removal volume is obviously enlarged, the heat loss of the shaft during the non-operation period is reduced, the geothermal energy exploitation efficiency is improved, and the reverse loss of the heat of the working medium in the shaft to the stratum during the non-operation period is reduced.
Owner:HEILONGJIANG PROVINCE 904 ENVIRONMENTAL ENG SURVEY & DESIGN INST CO LTD

Direct air capture using geothermal cooling towers

Systems and techniques may be used for incorporating direct air carbon dioxide capture capabilities into a working fluid condensing process of a geothermal power plant. An example technique may include causing, using fans, air to flow across condenser coils of a condensing unit, through which power cycle working fluid is circulated, and through a direct air capture (DAC) filtration component, which separates carbon from the air, capturing heat from a geothermal working fluid, and using the heat as thermal energy input to the DAC filtration component or using electrical energy generated from the geothermal power plant as electrical energy input to power the condensing unit and the DAC filtration component. The example technique may include gathering the carbon separated from the air to be injected into a geothermal reservoir or repurposed for another industrial process.
Owner:FERVO ENERGY CO

Surface geothermal heat-energy capture and storage system

A geothermal system exchanges heat between ground which receives geogenic heat 1 from below and a target 7, comprises a continuous loop of heat exchange tubing 3 placed in a region of the ground and s
Owner:ALAN KEITH VOWLES

Hydrogen production system using geothermal water

The application discloses a hydrogen production system of geothermal water source and belongs to the technical field of hydrogen production. The system comprises a geothermal fluid circulation unit, an electrolyte preheating unit and an electrolytic hydrogen production unit. The geothermal fluid circulation unit realizes the recycling of geothermal water through a geothermal well, a recharge well and a geothermal heat exchanger; the electrolyte preheating unit connects an electrolyte storage tank and the second side of the geothermal heat exchanger through a second circulation pipeline to form a preheating circulation; the electrolytic hydrogen production unit comprises an electrolytic tank and a hydrogen purification device and receives the preheated electrolyte to produce hydrogen by electrolysis. In the preferred scheme, a flash evaporation pressurization and heat supplement unit is further included, the geothermal tail water is subjected to waste heat recovery through a flash tank and a steam compressor to generate high-temperature steam for auxiliary heating of the electrolytic tank. The application uses geothermal energy to replace electric heating to preheat electrolyte, significantly reduces the energy consumption of hydrogen production, has the advantages of reasonable structure, high automation degree, environmental protection and water saving and is suitable for hydrogen production application in areas rich in geothermal resources.
Owner:SHAANXI YUANZHENGXING REAL ESTATE CO LTD

A medium-deep geothermal energy heating system

PendingCN122447852AHeating systemWater pipe
The present application belongs to the technical field of heat supply, and discloses a kind of middle-deep geothermal energy heat supply system, including well site system and plant station system;Production well of well site system is connected with hot water supply pipe by hot water supply branch pipe, and recharge well is connected with hot water return pipe by hot water return branch pipe, and hot water supply branch pipe and hot water return branch pipe are connected with first sedimentation tank;Plant station system includes two heat exchangers connected in series on geothermal pipe, and the heat exchanger is heat exchanged with municipal water return pipe and municipal water supply pipe;Hot water supply pipe and hot water return pipe are connected with one heat exchanger respectively;Municipal pipeline is connected with two heat exchangers respectively, wherein heat pump unit is connected between second heat exchanger and municipal pipeline, and the heat pump unit includes three heat pumps connected in series on medium pipe and municipal branch pipeline, and the plant station system further includes second sedimentation tank, and hot water return pipe and geothermal pipe are connected with second sedimentation tank.The present application has the technical effects of ensuring stable operation of the system and reducing the operating cost of the heat pump system.
Owner:JINAN MUNICIPAL ENG DESIGN & RES INSITITUTE GRP

Federal learning-based energy underground subway station design method

The present application relates to geothermal energy development and utilization technical field, specifically to a kind of energy underground subway station design method based on federal learning, through parameter collection, local client local model update, calculation result is uploaded to central server, central server carries out update calculation, issue to local client local model, update iteration until global model robustness, the design result of each module is calculated, and heat exchange efficiency and thermal stress are predicted.The energy underground subway station design method proposed in the present application can fully consider the coordination between indoor user end, unit equipment selection and three kinds of energy station structure pipe end in station, and the design scheme obtained can greatly meet the energy-saving and emission-reducing design concept, with low calculation cost, the influence of heat exchange efficiency and heat exchange process on station structure can be accurately evaluated, and compared with traditional test method and field monitoring method, the cost of manpower and material resources can be greatly reduced.
Owner:DALIAN PUBLIC TRANSPORT CONSTR INVESTMENT GRP CO LTD +2

A pinn-based optimization design method for water-heat type ground heat exchanger

The present application belongs to the technical field of geothermal energy development and utilization, and relates to a hydrothermal type buried pipe heat exchanger optimization design method based on PINN, comprising: 1, numerical simulation and benchmark data set generation; 2, PINN construction and training: constructing a PINN neural network, converting the mass conservation equation and the energy conservation equation in the pore medium into a partial differential equation residual, and together with the discrete data error generated by the numerical simulation software to form a composite loss function; using the nonlinear fitting capability of the PINN neural network, and embedding the physical partial differential equation of fluid flow and heat transfer in the pore medium into the loss function as a soft constraint; 3, data-driven optimization based on the proxy model; the present application not only fundamentally solves the problems of poor generalization ability and easy non-physical interpretation of traditional pure data-driven models, but also breaks through the bottleneck of convergence difficulty and high training cost when solving complex engineering problems by pure PINN.
Owner:XI AN JIAOTONG UNIV

Vertical shaft support heat removal and temperature control structure and mounting and using method thereof

The invention discloses a vertical shaft support heat removal temperature control structure and an installation and use method thereof, and relates to the field of mine construction engineering. The hollow steel bars are used as structural reinforcing bars and supporting anchor rods, and the middle space of the hollow steel bars is used as a fluid channel, so that stratum heat extraction is achieved; meanwhile, a temperature sensor is preset on the outer side of the well wall, and the water inlet temperature of the hollow steel bars is controlled through temperature measurement feedback to avoid overhigh temperature of well wall concrete. Comprising a hollow steel bar anchor rod, a hollow anchor rod inner pipe is arranged in the hollow steel bar anchor rod in a penetrating mode, and a water supply side vertical hollow steel bar and a water return side vertical hollow steel bar are further arranged in a well wall; the vertical water supply pipeline and the vertical water return pipeline are arranged on the inner side of the shaft and used for being connected with geothermal users; the system further comprises a temperature sensor arranged on the outer side of the well wall lining. An important technical means is provided for efficient utilization of geothermal energy of the vertical shaft surrounding rock, and meanwhile a foundation is laid for long-term stability of a surrounding rock supporting structure.
Owner:CHINA COAL CONSTR GRP CO LTD

Geothermal energy utilization intelligent control center graphical user interface for electronic devices

1. Name of the product in this design: Graphical User Interface for Intelligent Control Center of Geothermal Energy Utilization for Electronic Equipment. 2. Purpose of this design: An electronic device. 3. The key design features of this product are the content displayed in the graphical user interface. 4. The image or photograph that best illustrates the design's key points: the front view. 5. Purpose of the graphical user interface: It serves as the interactive interface for the intelligent control center for geothermal energy utilization, enabling the control and management of medium-deep geothermal energy systems through an interactive digital twin. 6. The process of changing the graphical user interface: After entering the username and password in the main view and clicking "Login", the interface jumps to the interface change state diagram 1; in the interface change state diagram 1, click "Scientific and Technological Achievements" in the upper right navigation bar of the page, and the interface jumps to the interface change state diagram 2.
Owner:NORTHWEST ENGINEERING CORPORATION LIMITED

Carbon dioxide energy storage and geothermal heat supplement system based on coaxial sleeve and operation method

This invention discloses a carbon dioxide energy storage and geothermal heat replenishment system and its operation method based on a coaxial sleeve. The system includes a carbon dioxide compressor unit, a carbon dioxide expander unit, a modified coaxial sleeve buried pipe, a heat pump system, a throttling cold storage device, and a liquid storage tank. By modifying the existing coaxial sleeve and utilizing its original properties, the space inside the pipe is used to store liquid carbon dioxide, reducing the use of the liquid storage tank and ground space, and improving the system's economy and safety. The high-temperature source water stored in the annular pipe space enables the replenishment of geothermal energy and the sustainable utilization of geothermal energy during non-heating periods. The modified spiral flow channel also solves the problem of varying heat replenishment demand at different depths during geothermal replenishment. During energy release, the medium-temperature source water stored in the annular pipe space that has completed heat replenishment is extracted and used as a heat source for the heat pump system to utilize the waste heat of the source water, achieving cascade utilization of thermal energy.
Owner:XI AN JIAOTONG UNIV

Efficient energy-saving system for outputting green steam through coupling of shallow geothermal energy and high-temperature heat pump

ActiveCN224246174Umeet operating conditionsMeet production load needsHeat pumpsMechanical apparatusCirculator pumpCarbon sink
The utility model provides an efficient energy-saving system for outputting green steam through coupling of shallow geothermal energy and a high-temperature heat pump, and belongs to the technical field of energy systems. The problem that an existing steam supply system cannot generate green steam energy is solved. Comprising a shallow ground source heat pump system and a high-temperature heat pump system which are connected in series, the shallow ground source heat pump system comprises a buried pipe heat exchange system, a ground source side automatic make-up pump, a water collector, a ground source side circulating water pump, a water segregator and a ground source heat pump host, and the buried pipe heat exchange system is connected with the water collector and the water segregator; the high-temperature heat pump system comprises a heat source side circulating water pump, an evaporator, a compressor, an electronic expansion valve, a condenser, a flash evaporator, a high-temperature hot water circulating pump, a preheater and a high-temperature heat pump automatic make-up pump; according to the utility model, renewable geothermal energy and certain electric energy are utilized for assistance, high-temperature steam is output, the production load requirement of the park is met, carbon emission is avoided, carbon sink is increased, and the economic benefit is high.
Owner:CEEC SHANXI ELECTRIC POWER EXPLORATION & DESIGN INST

Direct air capture using geothermal cooling towers

Systems and techniques may be used for incorporating direct air carbon dioxide capture capabilities into a working fluid condensing process of a geothermal power plant. An example technique may include causing, using fans, air to flow across condenser coils of a condensing unit, through which power cycle working fluid is circulated, and through a direct air capture (DAC) filtration component, which separates carbon from the air, capturing heat from a geothermal working fluid, and using the heat as thermal energy input to the DAC filtration component or using electrical energy generated from the geothermal power plant as electrical energy input to power the condensing unit and the DAC filtration component. The example technique may include gathering the carbon separated from the air to be injected into a geothermal reservoir or repurposed for another industrial process.
Owner:FERVO ENERGY CO

GEOTHERMAL DEHYDRATOR FOR FOOD DRYING BASED ON GEOTHERMAL ENERGY

PendingIDS00202608230ADryingFood material
This invention discloses a Geothermal Dehydrator for Geothermal Energy-Based Food Drying that utilizes geothermal waste steam as a heat source through an indirect heating system for the dehydration process of food materials. This device consists of a drying chamber in the form of a closed cabinet made of aluminum which is equipped with a supporting frame, a tiered drying rack made of stainless steel, a cabinet door coated with aluminum, rockwool, and stainless steel, a stainless steel heating pipe placed at the bottom and top of the drying chamber, a hot steam outlet, a temperature indicator, a condensate drain, a hot steam trap, a hot steam inlet valve, and a hot steam outlet valve. The geothermal waste steam is channeled through the heating pipe so that heat is transferred indirectly to the air in the drying chamber without direct contact with the food material.The moisture from the drying process is removed through a hot steam outlet, while the condensate formed in the piping system is channeled through a condensate drain and automatically disposed of using a hot steam trap so that heat transfer efficiency is maintained. This invention produces a drying process that is faster, more stable, hygienic, and independent of weather conditions compared to conventional drying methods, and supports the direct use of geothermal energy as an energy-saving, efficient, and environmentally friendly food drying technology.
Owner:PT

Geothermal development experiment simulation device based on supercritical carbon dioxide

The invention discloses a geothermal development experiment simulation device based on supercritical carbon dioxide, and relates to the technical field of geothermal energy. The geothermal development experimental simulation device based on supercritical carbon dioxide comprises a carbon dioxide source, a heat regenerator, a first compressor, a geothermal simulation box, a second compressor, a first heat exchanger, a turbine, a second heat exchanger and a generator. The carbon dioxide source is communicated with the heat regenerator, a first switch valve is arranged between the carbon dioxide source and the heat regenerator, and the heat regenerator is communicated with the first compressor; the geothermal simulation box is provided with an injection well and a production well, the first compressor communicates with the injection well, the production well communicates with the second compressor, the second compressor communicates with the first heat exchanger, the first heat exchanger communicates with the turbine, the turbine communicates with the second heat exchanger, and the second heat exchanger communicates with the heat regenerator; the turbine is in transmission connection with the generator; according to the technical scheme, the experiment efficiency and the data accuracy can be improved.
Owner:PETROCHINA SHENZHEN NEW ENERGY RESEARCH INSTITUTE CO LTD +1

Methods for enhancing the permeability of reactive rock reservoirs

A method of stimulating a geological formation, the method comprising positioning an acidic fracturing fluid consisting essentially of water, dissolved CO2 (carbonic acid), and at least one of CO2 microbubbles or CO2 nanobubbles in the geological formation, wherein the positioning comprises passing the acidic fracturing fluid through an injection well casing to contact reactive rock in the geological formation; hydraulic fracturing the geological formation; acidizing the geological formation with the acidic fracturing fluid to yield a geological formation with increased permeability; and performing one or more of the following applications in the geological formation with increased permeability: geothermal energy harvesting, hydrogen production, hydrocarbon production, water / brine production, economic element extraction, waste disposal, as well as any other extraction, injection, or disposal operations of economic interest.
Owner:SAUDI ARABIAN OIL CO

Use of amine modified nanoparticles for H2S scavenging

ActiveUS12643802B2Refining with non-metalsGas treatmentEnvironmental engineeringNanoparti cles
A process to remove H2S from a stream is described and claimed. The process comprises the steps of adding an amine-functionalized silica nanoparticle composition, and optionally a iriazine. The stream is selected from the group consisting of Oil streams, Gas streams, CO2 point source purification streams and Geothermal Energy System streams.
Owner:NISSAN CHEMICAL AMERICA CORP

A multi-functional complementary vacuum membrane distillation wastewater treatment system and method

A kind of multi-energy complementary vacuum membrane distillation wastewater treatment system and method, belong to energy-saving and environmental protection field.The system includes solar heat collector, middle-deep layer geothermal well, vapor compression heat pump, vacuum membrane assembly, circulating pump, heat exchanger, vacuum pump and other equipment.Its characterized in that: with liquid water as working substance, first sequentially through the middle-deep layer geothermal well group buried in underground 1500m below, vacuum membrane distillation secondary steam, vapor compression heat pump and solar heat collection system gradually improve heat, then through heat exchanger heat transfer to the industrial wastewater to be treated, so that it reaches the required temperature, using circulating pump to fill vacuum membrane assembly, under negative pressure environment, through vacuum membrane distillation process purification separation, the produced secondary steam passes through heat exchanger and transfers sensible heat and latent heat to liquid working substance water to condense and collect, the produced concentrated liquid returns to water tank to continue circulating concentration, after reaching the required concentration, recycling.The invention maximizes the recycling of geothermal energy, solar energy and secondary steam heat energy, meets the energy demand in the process of vacuum membrane distillation wastewater treatment through multi-energy complementation, has the advantages of high energy utilization efficiency, low operating cost, strong operating stability, etc., suitable for industrial heating, building heating, ventilation and air conditioning and other fields.
Owner:LANZHOU JIAOTONG UNIV

Geothermal non-condensable gas harmless treatment and heat recovery system

The invention belongs to the technical field of geothermal energy, and provides a geothermal non-condensable gas harmless treatment and heat recovery system which comprises a first heat exchange part, a gas-liquid separation part, a gas treatment part and a second heat exchange part, the gas-liquid separation part is communicated with the first heat exchange part, and the gas treatment part is communicated with the gas-liquid separation part; one end of the second heat exchange part communicates with the gas treatment part, the other end of the second heat exchange part communicates with the gas-liquid separation part, and the output end of the second heat exchange part communicates with the first heat exchange part. The gas treatment part is ignited, so that the gas can be combusted to generate tail gas which is absorbed by the second heat exchange part, the environmental pollution caused by direct emission of non-condensable gas is avoided, and meanwhile, the production safety is improved.
Owner:CHINA PETROLEUM ENG & CONSTR +1

Shallow geothermal structure and pressure-stabilized heat exchange method thereof

The application discloses a kind of shallow geothermal structure and its pressure stabilizing heat exchange method, belong to shallow geothermal energy utilization and two-phase heat transfer device technical field, including surface structure layer, gravity heat pipe array and pressure stabilizing heat exchange device;Surface structure layer includes structure layer and heat insulation layer, heat insulation layer is located below structure layer;Gravity heat pipe array includes multiple array distribution heat pipe unit, each heat pipe unit includes evaporator section and condenser section connected with each other, evaporator section is used to input working medium, and condenser section is located in structure layer;Pressure stabilizing heat exchange device includes pressure sampling assembly and filling air supplement assembly, pressure collection component is used to collect the pressure in heat pipe unit, and filling air supplement assembly is used to supplement working medium in heat pipe unit based on the detection result of pressure sampling assembly.The application can improve the heat transfer efficiency and effect of gravity heat pipe, and its process can be copied, the measurement anti-interference is strong, heat path is controllable, suitable for the engineering deployment and operation maintenance of shallow geothermal heat extraction.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY

A geothermal energy-solar energy-hydrogen energy coupling power generation system and method

PendingCN122428981AThermodynamicsPower grid
The application belongs to the technical field of clean energy, and relates to a geothermal energy-solar energy-hydrogen energy coupling power generation system and method, which comprises a geothermal energy heating unit, a solar energy heating unit, an organic working medium circulating unit and a hydrogen circulating unit. By constructing the geothermal energy-solar energy-hydrogen energy coupling power generation system, combining the twice heating efficient power generation of the organic working medium circulation and the electric energy storage-repowering function of the hydrogen circulation, not only the system output power fluctuation caused by the intermittency and fluctuation of the solar energy is effectively suppressed, the output power quality is guaranteed to meet the grid connection requirement, but also the working condition fluctuation of the core power generation equipment is reduced, the equipment start-stop frequency and component wear are reduced, the equipment service life is prolonged and the operation and maintenance cost is reduced, at the same time, the storage and cross-period reuse of the excess electric energy are realized, and the utilization efficiency of the renewable energy and the system operation stability are further improved.
Owner:QINGHAI UNIV FOR NATITIES