144 results about "Geothermal power generation" patented technology

The invention discloses a geothermal hot spring pool thermovolt power generation and water temperature regulation and control combined system which comprises a hot spring pool and a thermovolt power generation device. A thermal insulation wall is arranged in the hot spring pool, the hot spring pool is divided into a hot spring power generation battery and a hot spring recuperating pool through the thermal insulation wall, and the thermovolt power generation device is arranged in the hot spring power generation battery; a geothermal water inlet is formed in the hot spring generating battery, and high-temperature geothermal water enters the hot spring generating battery through the geothermal water inlet; a temperature control valve system is arranged in the hot spring recuperation pool and used for controlling the temperature of hot water entering the hot spring recuperation pool. The pulsating heat pipe and the thermovolt power generation technology are creatively integrated, natural hot spring heat energy is fully utilized, temperature difference energy between hot spring water and cold water is utilized to the maximum extent before the temperature is reduced to the comfortable temperature of a human body, and the pulsating heat pipe is utilized to effectively increase the heat exchange area and heat extraction capacity; meanwhile, the thermovolt power generation chip is adopted to directly convert hot spring heat energy into electric energy, and the dual functions of hot spring water temperature adjustment and geothermal power generation utilization are achieved.

The invention discloses a CO2 geological storage coordinated shale oil and geothermal energy green development system and method. The system comprises a geothermal power station located on the ground, a ground cable, a CO2 injection device, a CO2 conveying pipeline, a CO2 / shale oil separation device, a shale oil conveying pipeline and a shale oil storage tank. Wherein the geothermal power station is connected with the CO2 injection device through a ground cable, the CO2 injection device is connected with the CO2 / shale oil separation device through a CO2 conveying pipeline, and the CO2 / shale oil separation device is connected with the shale oil storage tank through a shale oil conveying pipeline; through multiple utilization and innovative closed circulation of CO2, an efficient energy development system is built, the recovery ratio of shale oil is increased, geological storage of CO2 and geothermal energy development are achieved, energy consumption and carbon emission are reduced, and therefore the environmental pollution risk is effectively reduced, and unification of economic benefits and environmental benefits is achieved.

Systems and methods for generating and a controller for controlling generation of geothermal power in an organic Rankine cycle (ORC) operation in the vicinity of a wellhead during hydrocarbon production to thereby supply electrical power to one or more of in-field operational equipment, a grid power structure, and an energy storage device. In an embodiment, during hydrocarbon production, a temperature of a flow of wellhead fluid from the wellhead or working fluid may be determined. If the temperature is above a vaporous phase change threshold of the working fluid, heat exchanger valves may be opened to divert flow of wellhead fluid to heat exchangers to facilitate heat transfer from the flow of wellhead fluid to working fluid through the heat exchangers, thereby to cause the working fluid to change from a liquid to vapor, the vapor to cause a generator to generate electrical power via rotation of an expander.

The invention provides a wind-light-electricity energy storage system based on a terrestrial heat utilization principle, and relates to the field of terrestrial heat power generation, the system comprises a power supply device, a heating device, a heat exchange device and a power generation device; the power supply device is used for transmitting electric energy stored by the wind power generator set and the solar panel to the heating coil in the shaft through the output end cable; the heating device is used for heating the aquifer and the granite layer through heat energy generated by the heating coil and storing the heat energy; the heat exchange device is used for converting heat energy of the aquifer and the granite layer into internal energy of water to obtain water or water vapor; the power generation device is used for converting water or water vapor into high-temperature and high-pressure steam and driving the steam turbine generator unit to operate for power generation. Electric energy generated by wind energy and solar energy is combined to heat an aquifer and a granite layer in a stratum, so that a heat source in the stratum is greatly increased, the extraction temperature of a heat exchange medium is increased, the temperature required by geothermal power generation is achieved, and geothermal power generation is achieved.

A geothermal power generation system according to one embodiment of the present invention comprises: a gas-liquid separator; a first pipe; a first valve that opens and closes the flow path of the first pipe; a second pipe; an analysis device; a control device that performs control for determining at least one chemical agent from among a plurality of chemical agent candidates on the basis of the result of analysis performed by the analysis device, and for supplying the chemical agent; a chemical agent supply port which is provided to the first pipe and through which the chemical agent is supplied; a third pipe that branches off the second pipe; a chemical agent recovery line that branches off the second pipe and is connected to the second pipe; a waste liquid recovery part, a scale separation part, a first chemical agent recovery part, an impurity separation part, a second chemical agent recovery part, a chemical agent purification part, and a regenerated chemical agent tank, which are provided in midcourse of the chemical agent recovery line sequentially from the upstream side; and a waste liquid adjustment device. The waste liquid adjustment device is connected to the scale separation part, the impurity separation part, and the chemical agent purification part.

A method for removing scale that is precipitated from geothermal fluid containing dissolved silica and becomes adherent in a geothermal power plant including: a water supply pump for pumping the geothermal fluid from a production well; a gas-water separator for separating the geothermal fluid into geothermal water and geothermal steam; and a turbine for rotating by being supplied with the geothermal steam separated by the gas-water separator includes: forming a surface of a location in the geothermal power plant contacted by the geothermal fluid from diamond-like carbon in a first region extending from the production well to the turbine; forming at least the surface of the location in the geothermal power plant from at least one selected from diamond-like carbon, polytetrafluoroethylene, and polyvinyl chloride in a region other than the first region; and injecting a scale removing liquid into a flow path including the surface of the location.

The present disclosure provides a non-condensable gas reduction system that returns non-condensable gas contained in highly maintainable geothermal fluid to a reinjection well. 【Solution means】A gas-liquid separator that separates geothermal fluid gushing out from a production well into a first gas and a first liquid, an evaporator that exchanges heat between the first gas and a working medium, a turbine that is rotated by the working medium discharged from the evaporator, and a condenser that cools the working medium that has rotated the turbine and condenses the working medium into a liquid. A non-condensable gas reduction system used in a geothermal power plant, comprising a pump that pressurizes a third liquid sent to a reinjection well, a plurality of ejectors that are driven by the third liquid, attract non-condensable gas contained in the first gas and remaining uncondensed in the evaporator, and discharge a fourth liquid in which the third liquid and the non-condensable gas are mixed, and a plurality of ejectors including any one of the plurality of ejectors. A non-condensable gas reduction system provided in parallel, in which the first liquid and the fourth liquid are mixed and sent to a reinjection well.

A geothermal system obtains heated heat transfer fluid via heat transfer with an underground reservoir of magma. The geothermal system includes a wellbore extending between a surface and into the underground reservoir of magma. A fluid pump provides a flow of heat transfer fluid toward the underground reservoir of magma. A fluid conduit extends from the surface toward a terminal end of the wellbore and allows flow of heated heat transfer fluid from a portion of the wellbore that extends into the underground reservoir of magma toward the surface.

The invention belongs to the technical field of geological storage of CO2, and particularly relates to a system and a method for mineralizing and storing CO2 by utilizing geothermal tail water. The invention discloses a system for mineralizing and sealing CO2 by utilizing geothermal tail water. The system comprises a CO2 mixing device and a geothermal water treatment device, a tail water inlet, a gas inlet and a liquid outlet are formed in the CO2 mixing device; the geothermal water treatment device is a geothermal heating or geothermal power generation device and is provided with a geothermal water inlet and a tail water outlet; the tail water inlet is communicated with the tail water outlet through a tail water conveying pipeline, the gas inlet is communicated with the CO2 gas collecting device through a gas pipeline, and the liquid outlet is communicated with the injection well through a liquid pipeline; the CO2 gas collecting device is connected with one end of a CO2 pipeline, the other end of the CO2 pipeline extends into the injection well, and a CO2 ejector is fixed in the injection well; and the geothermal water inlet is communicated with the geothermal water mining well through a pipeline. According to the system and method, geothermal resources in deep karst heat storage are exploited, and the requirement of the society for clean energy can be met.

A power controller may monitor a power required by each of a plurality of power loads coupled to a power distribution bus. The power loads can include a plurality of devices for oil and gas exploration or production. The devices can include a plurality of drilling rigs or equipment associated with one or more of the drilling rigs. The power controller may monitor the power supplied by each of a plurality of power sources coupled to the power distribution bus. The power sources can include power from any two or more of the following: an electric utility, an electric grid, a natural gas turbine, a battery, a solar power generator, a wind generator, and a geothermal generator. The power controller may adjust the power supplied to a first one of the plurality of power loads based at least in part on a first one of the plurality of power loads.

The invention provides a thermoelectric helium trigeneration system based on medium-deep geothermal energy ORC power generation. Comprising a modular integrated straight ORC generator set, a heating system, a helium separation pressure storage system, an air cooling / ground cooling composite system and a recharge system. According to the system, a modular integrated direct ORC generator set is adopted, geothermal water directly enters the generator set, an air cooling / geothermal cooling composite cooling cost-reducing and efficiency-increasing technology is arranged, part of heat which is originally lost through an air cooling system is stored underground, cross-seasonal heat storage is achieved, and the energy efficiency and economical efficiency of the system are remarkably improved; and a geothermal helium extraction process system is integrated, so that diversified and efficient utilization of geothermal energy is realized. The system is a poly-generation process technology integrating heat supply, helium extraction and geothermal power generation, and application of geothermal power generation and helium extraction is achieved.

The present disclosure provides a non-condensable gas reduction system that returns non-condensable gas contained in highly maintainable geothermal fluid to a reinjection well. **Solution**: A non-condensable gas reduction system used in a geothermal power plant, comprising: a gas-liquid separator that separates geothermal fluid gushing out from a production well into a first gas and a first liquid; a turbine rotated by the first gas; and a condenser that cools the first gas rotated by the turbine and condenses vapor contained in the first gas into a second liquid, the non-condensable gas reduction system further comprising: a pump that pressurizes a third liquid sent to a reinjection well; a plurality of ejectors driven by the third liquid, attracting non-condensable gas contained in the first gas and remaining uncondensed in the condenser, and discharging a fourth liquid in which the third liquid and the non-condensable gas are mixed; and a plurality of lines provided in parallel, including any one of the plurality of ejectors, wherein the first liquid and the fourth liquid are mixed and sent to the reinjection well.

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.

A scrubber for geothermal power generation, includes a treatment container, a drainage pipe, and a cooling mechanism. The treatment container separates geothermal steam into a separated gas and a separated liquid by treating the geothermal steam with a treatment liquid and has a steam supply opening to which the geothermal steam is supplied, and a gas release opening from which the separated gas is released. The drainage pipe is placed below the treatment container to discharge the separated liquid. The cooling mechanism cools a portion of the treatment container between the steam supply opening and the drainage pipe.

A system includes a subsea geothermal power system. The subsea geothermal power system includes a plurality of well connections configured to couple to a plurality of geothermal wells. The subsea geothermal power system also includes a geothermal power plant fluidly coupled to the plurality of well connections. The geothermal power plant is configured to receive thermal energy from the plurality of geothermal wells and convert the thermal energy into at least one of electrical energy and mechanical energy. The system also includes a subsea station having one or more pumps, one or more compressors, one or more separators, one or more energy storage devices, or a combination thereof. The subsea station is at least partially powered by the at least one of electrical energy and mechanical energy produced by the subsea geothermal power system.

The application discloses a kind of deep geothermal power generation systems of hydrothermal-dry heat collaborative development, belong to geothermal organic rankine cycle power generation technical field;It includes: heat exchange component, geothermal heat extraction component and power generation component.Heat exchange component includes the preheater for heat exchange, low-pressure stage evaporator and high-pressure stage evaporator;Geothermal heat extraction component includes the first heat extraction unit for absorbing water heat type geothermal and the second heat extraction unit for absorbing dry hot rock type geothermal;First heat extraction unit, preheater, second heat extraction unit, high-pressure stage evaporator and low-pressure stage evaporator are sequentially communicated by pipeline, first heat extraction unit can preheat the heat medium to second heat extraction unit;Power generation component includes high-pressure power generation unit, low-pressure power generation unit and condensing unit, and high-pressure stage evaporator can high-pressure power generation with high-pressure power generation unit;Low-pressure stage evaporator can low-pressure power generation with low-pressure power generation unit.The application can maximize the value of low-temperature hydrothermal resources.

To provide a method for producing a synthetic resin (X) which can reduce loads on environments when producing the synthetic resin (X).SOLUTION: A method for producing a synthetic resin (X) includes a step of reacting a first raw material (A) synthesized in a step of reacting carbon dioxide with hydrogen, with a second raw material (B) which is synthesized from the carbon dioxide and is different from the first raw material (A). At least one of carbon dioxide for synthesizing the first raw material (A) and carbon dioxide for synthesizing the second raw material (B) contains at least one selected from the group consisting of carbon dioxide which is discharged to the environments and is generated by combustion of an organic matter, carbon dioxide generated by water vapor modification of the organic matter, and carbon dioxide taken out of volcanic gas in geothermal power generation.SELECTED DRAWING: Figure 1

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.

The present invention relates to the technical field of geothermal power generation, and particularly relates to a modular geothermal power generation system. It includes: multiple groups of thermovoltaic power generation modules, a hot water supply system, and a cold water supply system; the thermovoltaic power generation module includes at least two heat exchangers, the heat exchangers are arranged adjacent to each other at intervals, and the two adjacent heat exchangers are respectively: a hot heat exchanger and a cold heat exchanger. A plurality of thermoelectric modules for thermovoltaic power generation are arranged between the two heat exchangers. The hot water supply system is connected to the hot heat exchanger, and the cold water supply system is connected to the cold heat exchanger. By arranging the hot heat exchanger and the cold heat exchanger which are oppositely arranged to form a hot end and a cold end of the groove, and arranging a thermoelectric module between them, the whole is modular, and the number of used modules can be adjusted according to requirements, which is convenient for maintenance and assembly.

The invention relates to a photo-thermal coupling terrestrial heat power generation device. The photo-thermal coupling terrestrial heat power generation device comprises a photo-thermal assembly, a power generation assembly coupled with the photo-thermal assembly through a first heat exchanger and a terrestrial heat assembly coupled with the photo-thermal assembly through a second heat exchanger. The geothermal assembly comprises a sleeve inserted into the target stratum and a heat insulation pipe arranged in the sleeve, and an annular space communicated with the power generation assembly is formed between the sleeve and the heat insulation pipe. Wherein the photo-thermal assembly is constructed to be capable of transmitting heat to the power generation assembly and the geothermal assembly through the first heat exchanger and the second heat exchanger respectively, so that the geothermal assembly conveys a heated heat-conducting medium to a target stratum through an annulus; therefore, the geothermal assembly can convey the heat-conducting medium at the target stratum to the power generation assembly when the heat transferred to the power generation assembly by the photo-thermal assembly is smaller than the heat required by the power generation assembly. Therefore, an underground aquifer or other geological structures can be used as an energy storage medium, the energy storage period is prolonged, the operation cost is reduced, and the continuity and stability of power generation are effectively improved.

The invention relates to the technical field of geothermal power generation, and provides a carbon dioxide geothermal power generation device and a control method thereof.The device comprises a conduction pipe used for transmitting geothermal media to an evaporator, the evaporator converts the geothermal media into steam and then drives a steam turbine to rotate, and the steam turbine rotates to drive a power generator to generate power; the cooling mechanism is connected with the steam turbine; the cooling mechanism comprises a condenser arranged on one side of the steam turbine, an air inlet of the condenser is connected with an air outlet of the steam turbine, a liquid outlet of the condenser is communicated with the evaporator through a first circulating water pipe, and an air outlet of the condenser is connected with an exhaust pipe; a second vacuum pump is arranged at the end, away from the condenser, of the exhaust pipe. The first vacuum pump is arranged on one side of the exhaust pipe; an air outlet communicates with the first circulating water pipe through a second circulating water pipe; the power of the first vacuum pump is larger than that of the second vacuum pump. The energy utilization rate of the geothermal medium can be increased while energy is saved.

An organic working medium and steam combined geothermal power generation system comprises a steam power generation system, and the steam power generation system comprises an evaporator, a steam turbine, a mixed condenser and a first recharge pump which are connected in sequence; comprising an organic working medium power generation system, the organic working medium power generation system comprises an organic working medium evaporator, an organic working medium turbine, a surface type condenser and an organic working medium pump which are sequentially connected, the steam power generation system and the organic working medium power generation system are communicated through a valve, and the steam power generation system takes water from a geothermal exploitation well. Compared with the prior art, by means of gradient utilization of high-temperature geothermal water, geothermal resources are utilized to the maximum extent, the power generation capacity per ton of water is improved, and meanwhile the power generation efficiency and the power generation capacity of the system are improved.

A method of removing built up scale in a conduit of a geothermal plant, in which conduit a fluid including mineralized water is flowing, is provided. The method includes analyzing the mineralized water and scale. A chelator, acid composition, and / or caustic composition for dissolving the scale is predetermined based on the analysis of the mineralized water and scale. The fluid in the conduit is alternately treated with the acid composition and the caustic composition. The caustic composition includes the predetermined chelator. Treating is carried out without stopping the fluid flow in the conduit. The acid composition and the caustic composition are injected directly into the fluid in the conduit.

The present invention discloses a combined system for thermovoltaic power generation and water temperature control in a geothermal hot spring pool, comprising a hot spring pool and a thermovoltaic power generation device. The hot spring pool is provided with an insulation wall, which separates the hot spring pool into a hot spring power generation unit and a hot spring therapy pool via the insulation wall. The thermovoltaic power generation device is provided in the hot spring power generation unit. The hot spring power generation unit is provided with a geothermal water inlet, through which high-temperature geothermal water enters the hot spring power generation unit. The hot spring therapy pool is provided with a temperature control valve system, which is used to control the temperature of the hot water entering the hot spring therapy pool. The present invention innovatively integrates pulsating heat pipes and thermovoltaic power generation technology, fully utilizing natural hot spring thermal energy. Before lowering the temperature to a comfortable human body temperature, it maximizes the temperature difference between hot spring water and cold water, utilizes pulsating heat pipes to effectively increase the heat exchange area and heat extraction, and simultaneously employs thermovoltaic power generation chips to directly convert the hot spring thermal energy into electrical energy, thus achieving the dual functions of hot spring water temperature regulation and geothermal power generation.

The invention belongs to the technical field of geothermal power generation equipment, and particularly relates to an underground geothermal utilization generator set which comprises an underground heat pipe, a turbine generator, a condenser and a medium storage tank which are sequentially connected. The underground heat pipe comprises an inner pipe and an outer pipe, and the space in the inner pipe is divided into a steam channel and a liquid channel through a partition plate. A flow deflector is installed on the inner pipe, a gap exists between the flow deflector and the inner wall of the outer pipe, a liquid hole and a steam hole are formed in the inner pipe, and a baffle is installed in the liquid channel. A contact net is installed on the flow deflector, the lower end of the contact net is connected with a magnetic bead in series, and the magnetic bead is attached to the inner wall of the outer pipe in an adsorption mode; the structure is simple, the geothermal energy transmission loss is reduced, the geothermal energy power generation utilization rate is increased, the heat exchange performance of the underground heat pipe is improved, it is guaranteed that the liquid film is continuous and stable, the liquid film can be relatively segmented, and therefore the situation that evaporation heat exchange is affected due to too large static pressure is avoided.

A geothermal power system generates electricity using a geothermal fluid. The geothermal fluid is produced from, and then injected into, fractures in a subterranean formation such that pressures inside the fractures are maintained between the corresponding closure pressures propagation pressures of the fractures. In some aspects, the fractures are devoid of proppant, and are maintained open by the pressure of the fluid within the fractures.

This invention belongs to the field of ventilation and purification technology in tunnel construction, and particularly relates to an integrated dust removal system during underground tunnel blasting construction. The system includes: a ventilation module, an air purification device, a gas sensor, a controller, and a power supply mechanism. The power supply mechanism includes a generator and an energy storage unit, as well as a municipal power grid, a solar power generation module, a compressed air energy storage module, and a geothermal power generation module connected to the generator and energy storage unit. The geothermal power generation module uses a supercritical CO₂ fluid and methanol heat exchange cycle to drive a turbine to generate electricity. The compressed air energy storage module stores energy during off-peak electricity consumption and releases energy to generate electricity during peak electricity consumption. The air purification device has a filter screen and a filter element sequentially installed at the air inlet, and a multi-stage liquid filtration assembly sequentially filled with washing liquid. Another filter element is installed at the exhaust end. The controller automatically adjusts the operating power of the ventilation module and the air purification device based on the gas sensor detection signal.

The purpose of the present invention is to improve accuracy of estimating the clogging state of a nozzle even when steam is guided to a plurality of spaces. A steam turbine system (20) comprises: a steam pipe (7) through which steam jetted from a well flows; a steam turbine (8) having a nozzle to which the steam flowing through the steam pipe (7) is guided; a first steam pipe (21) that branches from the steam pipe (7) and guides steam to a first steam chamber (S1); a second steam pipe (22) that branches from the steam pipe (7) and guides steam to a second steam chamber (S2) having a smaller capacity than the first steam chamber (S1); a steam chamber communication valve (23) that adjusts the flow rate of the steam flowing through the second steam pipe (22); a flowmeter (18) that detects the flow rate of the steam flowing through the steam pipe (7); a pressure gauge that detects the pressure of the steam guided to the first steam chamber (S1); and a clogging state estimation unit that estimates the clogging state of the nozzle on the basis of the flow rate detected by the flowmeter (18), the pressure detected by the pressure gauge, and the opening degree of the steam chamber communication valve (23).

The invention discloses a new energy geothermal power generation cooperative operation method, and relates to the technical field of new energy, and the method comprises the steps: judging whether a to-be-measured distance between target new energy and target geothermal energy is smaller than a preset distance division interval value; if the to-be-measured distance is between the distance division interval values, a target transmission line between the target new energy and the target terrestrial heat is divided into a plurality of equal sections to obtain a first section line, if the to-be-measured distance is between the distance division interval values, the target transmission line is divided into sections which are three times of the first section line, and if the to-be-measured distance is greater than the distance division interval values, the target transmission line is divided into sections; if yes, performing section division of a six-time first section line on the target transmission line, obtaining a temperature loss correlation coefficient according to correlation influence change trend characteristics between historical environment temperature data and historical extra energy loss degree values in historical monitoring data, and performing error compensation on the initially set energy consumption predicted value according to the temperature loss correlation coefficient to obtain an initial energy consumption predicted value; the actual energy demand quantity is obtained, and power generation cooperative operation is conducted. The power generation efficiency can be improved.

A geothermal power generation system includes: gas-liquid separator; power generator; retention tank; re-injection line; re-injection pump; chemical agent injection port in the re-injection line between the retention tank and the re-injection pump; first chemical agent adding device to inject a chemical agent into the chemical agent injection port; branching section in the re-injection line on a downstream side relative to the re-injection pump as well as on a vertically upper side of the re-injection well, and to branch a flow of geothermal brine; first liquid analyzer; scale-piece collector; dissolving agent adding device; and controller to switch between an injection operation and injection stoppage of the chemical agent by the first chemical agent adding device and to switch between an injection operation and injection stoppage of the dissolving agent by the dissolving agent adding device, based on an analysis result of the first liquid analyzer.