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66 results about "Cryogenic energy storage" patented technology

Cryogenic energy storage (CES) is the use of low temperature (cryogenic) liquids such as liquid air or liquid nitrogen as energy storage. Both cryogens have been used to power cars. The inventor Peter Dearman initially developed a liquid air car, and then used the technology he developed for grid energy storage. The technology is being piloted at a UK power station.

Energy storage and generation

The present invention concerns systems for storing energy and using the stored energy to generate electrical energy or drive a propeller (505). In particular, the present invention provides a method of storing energy comprising: providing a gaseous input, producing a cryogen from the gaseous input; storing the cryogen; expanding the cryogen; using the expanded cryogen to drive a turbine (320) and recovering cold energy from the expansion of the cryogen. The present invention also provides a cryogenic energy storage system comprising: a source of cryogen; a cryogen storage facility (370); means for expanding the cryogen; a turbine (320) capable of being driven by the expanding cryogen; and means (340, 350) for recovering cold energy released during expansion of the cryogen.
Owner:HIGHVIEW ENTERPRISES LTD

Peak load power generation device

The invention discloses a peak load power generation device, which comprises a generator (1), space division and liquefaction equipment (2), a high-pressure air storage tank (3), a low-temperature liquid storage tank (4), a gas turbine (5), a high pressure turbine (6), a low pressure turbine (7), a three-level multi-channel heat exchange device, a methane compressor (8), a combustion chamber (9),a cryogenic pump (10) and a helium compressor (11). The device has a simple, reasonable and compact structure; and through the effective integration of a cryogenic energy storage technology and the conventional power generation system which uses natural gas as a fuel, a plurality of defects in the prior art are overcome, excessive loads in a low ebb period can be effectively recycled, and the quantity demand of the fuel in a peak period can be reduced, so that the device has the advantages that: high-grade cold energy and low-grade waste heat can be efficiently recycled and utilized, carbon dioxide generated by peak load equipment can be efficiently captured and stored, and environmental pollution is reduced.
Owner:丁玉龙

A method of storing energy and a cryogenic energy storage system

The present invention concerns systems for storing energy and using the stored energy to generate electrical energy or drive a propeller (505). In particular, the present invention provides a method of storing energy comprising: providing a gaseous input, producing a cryogen from the gaseous input; storing the cryogen; expanding the cryogen; using the expanded cryogen to drive a turbine (320) and recovering cold energy from the expansion of the cryogen. The present invention also provides a cryogenic energy storage system comprising: a source of cryogen; a cryogen storage facility (370); means for expanding the cryogen; a turbine (320) capable of being driven by the expanding cryogen; and means (340, 350) for recovering cold energy released during expansion of the cryogen.
Owner:HIGHVIEW ENTERPRISES LTD

Method and apparatus for power storage

Cryogenic energy storage systems, and particularly methods for capturing cold energy and re-using that captured cold energy, are disclosed. The systems allow cold thermal energy from the power recovery process of a cryogenic energy storage system to be captured effectively, to be stored, and to be effectively utilised. The captured cold energy could be reused in any co-located process, for example to enhance the efficiency of production of the cryogen, to enhance the efficiency of production of liquid natural gas, and / or to provide refrigeration. The systems are such that the cold energy can be stored at very low pressures, cold energy can be recovered from various components of the system, and / or cold energy can be stored in more than one thermal store.
Owner:HIGHVIEW ENTERPRISES LTD

Ocean energy, solar energy and hydrogen energy-based complementary power generation system

The invention discloses an ocean energy, solar energy and hydrogen energy-based complementary power generation system. Hydrogen is prepared through electrolysis of water by employing solar energy and ocean energy as energy sources and seawater a hydrogen source; a renewable water resource is converted into clean and efficient hydrogen energy; obtained high-energy density hydrogen is stored into an organic hydrogen storage material; the organic hydrogen storage material is prepared from N-methylindole, N-ethylindole, diazafluorene and N-ethyl carbazole; the hydrogen storage density is high; hydrogen absorption and hydrogen energy desorption are reversibly carried out; the obtained hydrogenated organic hydrogen storage material can be transported to any place through a pipeline; the hydrogen removed from an organic hydrogen storage device is directly applied to a fuel cell; and the hydrogen energy is converted into electric energy through a hydrogen fuel cell or is used for direct heat supply. The power generation system is convenient and flexible; the solar energy is combined with the ocean energy; the energy is converted into the electric energy through the fuel cell and supplies a terminal device with electricity through hydrogen energy storage and energy transfer; the power generation system is stable and reliable; and the energy utilization rate is high.
Owner:温州集智科技有限公司

Ultralow temperature energy storage material composition

ActiveCN102746829AOvercome high supercoolingOvercoming attenuationHeat-exchange elementsPotassiumCrystallization temperature
The invention discloses an energy storage material composition formed by mixing eutectic salts with magnesium chloride, calcium nitrate and water as the principal components. The energy storage material composition is mainly prepared from water, magnesium chloride, calcium nitrate, sodium chloride, potassium chloride, basic magnesium carbonate and sodium carboxymethylcellulose, wherein the crystallization temperature is -48 to -52 DEG C, and the latent heat of fusion is more than 300 kJ / L.
Owner:BEIJING JINGXIN XIANGNENG TECH

Water storage power generation system using seabed pressure energy

InactiveCN105927455AOvercoming difficulties in site selectionOvercoming large water level fluctuationsMachines/enginesEngine componentsOcean bottomEngineering
The invention discloses a water storage power generation system using seabed pressure energy. The power generation system comprises a storage container, a seawater pumping energy accumulation unit and a pressure pipe; the storage container is arranged on a seabed, and includes a first opening end; the first opening end is connected to the pressure pipe; a valve is arranged on the pressure pipe; and the seawater pumping energy accumulation unit is arranged on the seabed, is connected to the pressure pipe, and includes fluid machinery connected with the pressure pipe and a motor / generator in transmission connection with the fluid machinery. The power generation system realizes electric energy storage by using a pressure difference in the seabed and the storage container without constructing high and low impounding reservoirs and being limited by geographical conditions; and the system uses seawater as a working medium for solving the dependency problem of traditional water pumping energy accumulation on fresh water resources. The system is suitable for power supplies with various types, environment-friendly and broad in application prospect.
Owner:INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI

Method of Storing Energy and a Cryogenic Energy Storage System

The present invention concerns systems for storing energy and using the stored energy to generate electrical energy or drive a propeller (505). In particular, the present invention provides a method of storing energy comprising: providing a gaseous input, producing a cryogen from the gaseous input; storing the cryogen; expanding the cryogen; using the expanded cryogen to drive a turbine (320) and recovering cold energy from the expansion of the cryogen. The present invention also provides a cryogenic energy storage system comprising: a source of cryogen; a cryogen storage facility (370); means for expanding the cryogen; a turbine (320) capable of being driven by the expanding cryogen; and means (340, 350) for recovering cold energy released during expansion of the cryogen.
Owner:HIGHVIEW ENTERPRISES LTD

Phase-change energy storage and heating device as well as energy storage and heating method

ActiveCN106871211AIt has functions such as energy storage peak shaving and heatingImprove stabilityCentral heating with accumulated heatHeat storage plantsProcess engineeringHeat storage material
A phase-change energy storage and heating device (1) comprises an energy storage equipment box body (2) and a central heat storage assembly, wherein the central heat storage assembly comprises a heating water-outlet water distributor (3), a heat-storage water-return water distributor (4), a heating water-return water distributor (5), a heat-storage water-outlet water distributor (6) and phase-change heat storage elements (7); the heating water-outlet water distributor (3) and the heat-storage water-return water distributor (4) are arranged at the upper part of the energy storage equipment box body (2); the heating water-return water distributor (5) and the heat-storage water-outlet water distributor (6) are arranged at the lower part of the energy storage equipment box body (2); and the phase-change heat storage elements (7) are arranged at the middle of the energy storage equipment box body (2), and distributed in an array or a laminate. The phase-change energy storage and heating device has the following functions: various phase-change heat storage materials can be converted into heat storage elements, and the heat storage elements can be distributed according to the unified arrangement mode and structure in different containers for heat storage and heating. Therefore, the heating energy consumption of the city life can be lowered, and the comprehensive recovery and utilization ratio of industrial waste heat can be improved.
Owner:中益能(北京)供热技术有限公司 +1

Combined heating power and cooling apparatus with energy storage type adapted to an active distribution network and its method

The application relates to an combined heating power and cooling apparatus with energy storage for an active distribution network and its operating method. The apparatus is comprised of a generation apparatus, a generator, a waste heat recovering and absorbing heat pump, a high temperature flue gas-water heat exchanger, a medium temperature flue gas-water heat exchanger, a low temperature flue gas-water heat exchanger, a energy storing electric heat pump, a high temperature energy storing canister, a low temperature energy storing canister, a cooling tower a number of circulating water pumps and a number of valves. The operating method changes the traditional operation modes of the system “determining electricity based on heat” and “determining electricity based on cooling”, causes the system to regulate power of the generated electricity on grid, participate in the regulation of grid load, solve the problem of a limited ability of generation peak regulation due to the inter-coupling of power generation, heat supply and cooling supply.
Owner:TSINGHUA UNIV

Three-dimensional pulsating heat pipe phase change material coupling energy storage system

The invention discloses a three-dimensional pulsating heat pipe phase change material coupling energy storage system. The structure comprises a plurality of energy storage sub modules, pulsating heat pipes, fins, energy storage boxes, a phase change material, a heat release runner, a heat charging runner and sealing gaskets, wherein the fins are distributed at the upper, middle and lower parts of the pulsating heat pipes; the fins are arranged inside the heat release runner, the energy storage boxes and the heat charging runner; and the energy storage boxes are filled with the phase change material. According to the system, the high thermal conductivity, flexible structure and low cost advantages of the pulsating heat pipes and the high latent heat advantage of the phase change material are reasonably combined together, the structure is simple and compact, the system shape can be flexibly changed according to the actual structure, the plurality of sub modules can be connected to form a large energy storage system, after proper combination and design, the plurality of sub modules are applicable to recycling and utilization of various industrial waste heat, and the system has wide market prospects and environmental protection value.
Owner:CHINA UNIV OF MINING & TECH

Thermal control method in hydrogen energy storage system, and control system thereof

The invention discloses a thermal control method in a hydrogen energy storage system, and a control system thereof. The thermal control method comprises following steps successively: S1, water electrolysis is carried out so as to produce hydrogen; S2, the produced hydrogen is stored; S3, the produced hydrogen is released; and S4, the hydrogen is used for electricity generation; and at the same time, heat energy released in one or a plurality of steps of the steps S1, S2, and S4 is collected, and the step S3 is provided with the collected heat energy. The thermal control method and the corresponding control system are capable of adjusting heat energy supply-demand relation among hydrogen preparation, hydrogen storage, and hydrogen electricity generation subsystems, increasing heat energy utilization ratio of the hydrogen energy storage system, and ensuring stable and orderly running of the hydrogen energy storage system via in time adjusting of the heat energy supply-demand relation among the subsystems.
Owner:GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +1

Modified wood fibre phase change energy storage material and preparation method thereof

InactiveCN107739445AControl pore sizeTo achieve the purpose of reamingHeat-exchange elementsChemical treatmentFatty acid
The invention discloses a modified wood fibre phase change energy storage material and a preparation method thereof. According to the modified wood fibre phase change energy storage material and the preparation method thereof, the pore diameters of wood fibres can be adjusted and controlled effectively, besides, porous structures of the wood fibres are improved, and the compatibility of the wood fibres and a phase change material is improved. The modified wood fibres are taken as a loading matrix of the phase change energy storage material; more phase change materials can be remained through the actions of hydrogen bonds, capillary force, intermolecular force and the like of the modified wood fibres, so that the enthalpy of phase change is improved; the modified wood fibres are combined with a fatty acid eutectic mixture, so that the requirement on low-temperature energy storage can be met; moreover, the phase change material prepared by the preparation method is degraded without heatin a phase change temperature range, which shows that the thermal stability of the modified wood fibre phase change energy storage material is high; and after 100 times of thermal cycle, the phase change material does not leak, which shows that the thermal reliability is high, and the thermal energy storage efficiency is high. The preparation method disclosed by the invention is simple in process;the wood fibres serving as the raw material are wide in source and low in cost; the raw materials do not need to be subjected to chemical treatment, and are environment-friendly and energy-saving, and the modified wood fibre phase change energy storage material has a wide application prospect in the field of solar energy utilization, building energy conservation and the like.
Owner:SOUTH CHINA AGRI UNIV

Lithium carbon dioxide battery capable of working at low temperature and preparation method thereof

The invention belongs to the technical field of new energy, and particularly relates to a lithium carbon dioxide battery capable of working at low temperature and a preparation method thereof. According to the lithium carbon dioxide battery, metal lithium is used as a negative electrode; an organic ether solvent dissolved with lithium salt is taken as a low-temperature-resistant electrolyte; a low-temperature-resistant porous membrane is used as a diaphragm; a porous electrode loaded with a catalyst is taken as a catalytic positive electrode; a macromolecule selective permeable membrane is used as a positive electrode protective layer; and the working temperature is less than or equal to 0 DEG C. The battery can be circularly charged and discharged for more than 150 circles (1500h) under the conditions that the temperature is -60 DEG C, the current density is 100mA. G <-1 > and the cut-off capacity is 500mAh. G <-1>. The battery has a wide application prospect in the field of low-temperature energy storage devices.
Owner:FUDAN UNIV

Liquid-nitrogen assisted energy storage tower type solar power plant

A liquid-nitrogen assisted energy storage tower type solar power plant comprises a tower, a reflector field, a heat absorber, a high temperature temperature-difference engine, a first generator, a low temperature energy storage tank, a high temperature energy storage tank, a low temperature temperature-difference engine, a second generator and a liquid nitrogen storage tank, wherein the tower, the reflector field, the heat absorber, the high temperature temperature-difference engine, the first generator, the low temperature energy storage tank and the high temperature energy storage tank form a solar power plant having energy storage functions and working during the day, and the low temperature energy storage tank, the high temperature energy storage tank, the low temperature temperature-difference engine, the second generator and the liquid nitrogen storage tank form a liquid nitrogen cooled energy storage type power plant which works during night. The liquid-nitrogen assisted energy storage tower type solar power plant improves power generating efficiency and the power generating capability during the night by utilizing nitrogen, makes 24-hour uninterrupted power supply technically possible, and eliminates the interruption of the solar power generating. The liquid-nitrogen assisted energy storage tower type solar power plant can rapidly lowers the solar power generation cost, and facilitates application and popularization of solar power generation.
Owner:上海领势新能源科技有限公司 +1

Layered cold storage device and cryogenic liquid air energy storage system using same

The invention provides a layered cold storage device and a cryogenic liquid air energy storage system using the same. The layered cold storage device comprises at least two cold storage units, the adjacent cold storage units are connected through a cold conveying passage in series, and at least one cold storage unit is collected with the cold energy output end. In the cold storage process, overflowing cold energy in the cold storage process of the former stage of cold storage unit enters the later stage of cold storage unit through the cold conveying passage and is used for pre-cooling of the later stage of cold storage unit, the tail gas released in the former stage of cold storage unit still contains certain cold energy, after pre-cooling the later stage of cold storage unit, the cold energy in the tail gas can be exchanged with cold storage media in the cold storage unit to a large extent, and therefore the cold energy storage efficiency can be greatly improved, and waste of the cold energy is avoided.
Owner:GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +1

Solar heat storage power generating system utilizing surface soil resources of other planets

A solar heat storage power generating system utilizing surface soil resources of other planets comprises a solar reflector, a tracking control system, a solar absorber, a high-temperature energy storage device, a low-temperature energy storage device, a thiele tube, a heat engine, a pump, a heat radiator, a power source management device and a storage device. The solar reflector, the tracking control system and the solar absorber enable solar energy to be gathered on the high-temperature energy storage device, and the high-temperature energy storage device is prepared through the surface soil resources of other planets. After sun radiation heat is absorbed and stored in day time, a temperature difference exists between the high-temperature energy storage device and the low-temperature energy storage device, heat energy is converted into electric energy through the heat engine, and therefore uninterrupted supply of electric energy and heat energy can be achieved day and night. By the adoption of the technical scheme, the emission mass and the operating expense are greatly reduced, and the solar heat storage power generating system has the advantages of being stable, durable, economical and safe, capable of meeting the demands for energy for science exploration instruments and staff life support in deep space exploration tasks.
Owner:CHINA ACADEMY OF SPACE TECHNOLOGY

Wind-driven magnetocaloric energy storage peak regulation type wind power generation system

The invention provides a wind-driven magnetocaloric energy storage peak regulation type wind power generation system. A wind power driving system is used for directly driving a power generator to generate electricity to meet the real-time electricity demands. Excessive wind energy is subjected to power dividing through a transmission system of a wind power driving system to drive a magnetic forcecoupling heating system to convent wind energy into heat energy to heat a heat storage medium. The high-temperature heat storage medium can be stored in a high-temperature energy storage tank for standby application. When electricity generated by wind power generation cannot meet the real-time electricity demands, the high-temperature heat storage medium in the high-temperature energy storage tankconducts heat exchange through a steam generator. A low-temperature liquid medium flowing through the steam generator absorbs heat of the high-temperature heat storage medium to become gaseous high-temperature steam. The high-temperature steam drives a steam turbine. The steam turbine drives the power generator to generate electric energy. The wind-driven magnetocaloric energy storage peak regulation type wind power generation system comprises the following key parts including the wind power driving system, a heater, the high-temperature energy storage tank, a low-temperature energy storage tank, the steam generator, the steam turbine, the power generator, a condenser, a deaerator and all types of pumps.
Owner:李启飞

Method and device for storing redundant heat of greenhouse and preventing high temperature of greenhouse

The invention provides a method and device for storing redundant heat of a greenhouse and preventing high temperature of the greenhouse. According to the method, after the temperature in the greenhouse is higher than a specific temperature, redundant heat in the greenhouse is absorbed through low temperature energy-storing materials such as hydrated salts having a low temperature melting point, the temperature of the greenhouse is controlled below a phase-change temperature of the low temperature energy-storing materials, the temperature of the greenhouse is prevented from rising too quickly, and plants in the greenhouse in summer are protected from damage caused by the high temperature. Sunlight and high temperature of bare land of the greenhouse are absorbed through the energy-storing materials such as the low temperature hydrated salts and high-density crosslinked polyethylene, residual heat of the environment is transmitted to cold storage materials such as hydrated salts through thermal good conductor materials; after the energy-storing materials absorb heat, fusion or phase change of other types occurs; before complete fusion, the temperature is always kept at a melting point, and an inhibiting effect on plant growth caused by too quick temperature rise in the greenhouse is greatly reduced.
Owner:DASHUN INT FLOWER

Systems and Methods for Controlling Pressure in a Cryogenic Energy Storage System

A cryogenic energy storage system comprises at least one cryogenic fluid storage tank having an output; a primary conduit through which a stream of cryogenic fluid may flow from the output of the fluid storage tank to an exhaust; a pump within the primary conduit downstream of the output of the tank for pressurising the cryogenic fluid stream; evaporative means within the primary conduit downstream of the pump for vaporising the pressurised cryogenic fluid stream; at least one expansion stage within the primary conduit downstream of the evaporative means for expanding the vaporised cryogenic fluid stream and for extracting work therefrom; a secondary conduit configured to divert at least a portion of the cryogenic fluid stream from the primary conduit and reintroduce it to the fluid storage tank; and pressure control means within the secondary conduit for controlling the flow of the diverted cryogenic fluid stream and thereby controlling the pressure within the tank. The secondary conduit is coupled to the primary conduit downstream of one or more of the at least one expansion stages.
Owner:HIGHVIEW ENTERPRISES LTD

Solar energy, electromagnetic energy and phase-change energy storage coupled heating control system

The invention relates to the technical field of heating, and particularly provides a solar energy, electromagnetic energy and phase-change energy storage coupled heating control system comprising a solar thermal collector, a low-temperature phase-change energy storage water tank, a high-temperature phase-change energy storage water tank, an electromagnetic heater, a heat user side and a PLC. The solar thermal collector communicates with the low-temperature phase-change energy storage water tank through a first circulation pipeline. The low-temperature phase-change energy storage water tank is connected with the high-temperature phase-change energy storage water tank through a heat exchange water return pipe and a conveying pipeline. The high-temperature phase-change energy storage water tank is connected with the heat user side through a second circulation pipeline. The electromagnetic heater is connected with the high-temperature phase-change energy storage water tank through a third circulation pipeline. The solar thermal collector and the electromagnetic heater are connected with the PLC. By means of the heating control system, solar energy and electromagnetic energy are supplied in a stepped manner, it is ensured that the heat supply effect of the heat user side is stable, system operation expenses are extremely low, and the heating system can be safer, can save more energy and is more economical and reasonable.
Owner:SHENYANG JIANZHU UNIVERSITY

Liquified light hydrocarbon fuel system for a hybrid electric vehicle

A liquefied light hydrocarbon (LLH) fuel system for a hybrid electric vehicle is disclosed. The fuel system uses a stable supply of vaporized (LLH) fuel to meet the highly variable power demand from the vehicle's power train by 1) adjusting the evaporation rate inside an insulated fuel tank through a heat delivery system, 2) managing the amount of compressed fuel vapor stored inside a buffer tank and 3) using an electric energy storage means to provide for rapid fluctuations in demand. In an embodiment the apparatus comprises an insulated fuel tank, a buffer tank, a heat delivery system, an energy conversion means to convert the vaporized fuel into electricity and an electric energy storage means that can provide for rapid variations of power demand from the vehicle. Methods of using the fuel system under various operational scenarios are also disclosed.
Owner:PEREZ ALBERTO MARTIN

Heat-of-compression recycle system, and sub-systems thereof

Power recovery sub-systems, cryogenic energy storage systems, and methods of capturing, storing, and re-using thermal energy are disclosed.
Owner:HIGHVIEW ENTERPRISES LTD

Distributed cooling, heating and power combined supply system

The embodiment of the invention discloses a distributed cooling, heating and power combined supply system, and relates to the technical field of energy treatment. The system comprises a gas turbine power generator set, a gas internal combustion engine power generator set, an ORC equipment power generator set, a slot type solar heat collecting field, an absorption type refrigerator, a multipurpose heat exchanger, a first heat exchanger, a second heat exchanger, a third heat exchanger and a plurality of valves. A high-temperature energy storage system, a low-temperature energy storage system, a gas boiler and a compression type refrigerator are further included. A gas turbine and a gas internal combustion engine are combined, the gas turbine continuously runs to be responsible for providing basic power loads, and the gas internal combustion engine serves as a peak regulating unit. By means of the distributed cooling, heating and power combined supply system, fuel consumption can be reduced, gradient utilization of the energy is achieved, and reliability and energy saving performance of the distributed cooling, heating and power combined supply system are further improved. Gas turbine inflow air is cooled in summer, and the generating capacity of the gas turbine is improved; and gas turbine inflow air is heated in winter, and accordingly the phenomenon of ice blockage of an air inlet system is reduced.
Owner:王树成

Novel fast temperature change test box

The invention discloses a novel fast temperature change test box. The test box comprises a touch screen controller, the surface of the box is provided with the touch screen controller, one side of the touch screen controller is provided with a power source, the top surface of the box is provided with a circulating fan, one side of the circulating fan is provided with an air outlet, a product test cabin is arranged in the box, one end of the product test cabin is provided with a high-temperature heating wire, one side of the high-temperature heating wire is provided with a horizontal turning door, one side of the horizontal turning door is provided with a low temperature energy storage cabin, an assistant heating wire is arranged in the low temperature energy storage cabin, and the bottom end of the assistant heating wire is provided with an evaporator. Through use of the horizontal turning door and a synchronous belt in the box, the novel fast temperature change test box can be fast switched between a high temperature test and a low temperature test, and solves the problem that the existing fast temperature change test box needs multiple expansion valves and solenoid valve sectional control so that energy consumption is high, power is wasted, a refrigeration system is complex and a compression machine service life is short.
Owner:JIAN QIAO LAB EQUIP DONGGUAN CO LTD

Efficient recovery device of industrial high-temperature material sensible heat system and method

ActiveCN110595218ASolve the problem of sensible heat wasteIncreased sensible heat transfer efficiencyHeat storage plantsWaste heat treatmentRecovery methodSocial benefits
The invention relates to an efficient recovery device of an industrial high-temperature material sensible heat system and method. The system comprises an energy storage material heat absorption and exchange unit, wherein a third outlet for allowing a high-temperature energy storage material to flow out is arranged on the energy storage material heat absorption and exchange unit and is connected with an energy storage material heat release and exchange unit; the energy storage material heat absorption and exchange unit is in serial connection with the energy storage material heat release and exchange unit; a third inlet for allowing a low-temperature energy storage material to flow in is arranged on the energy storage material heat absorption and exchange unit; and an inlet of a first energy storage material flow regulator is connected to an outlet of the energy storage material heat release and exchange unit to form a circulation loop. The system and the method have the beneficial effects that the sensible heat exchange efficiency is improved by about 60%, so that the problem of sensible heat waste of high-energy-consumption enterprises is fundamentally solved, and great economic benefits and social benefits are created for all high-energy enterprises.
Owner:贵州东睿能源科技有限公司

Low-temperature phase-change energy-storage electric heater

The invention relates to a low-temperature phase-change energy-storage electric heater which comprises a phase-change material container, a heating plate, a heat preservation and insulation layer, anouter frame and a temperature controller. A phase-change material is filled in the phase-change material container; a melting point range of the phase-change material is 50 to 70 DEG C; the latent heat of fusion is larger than 200kJ / kg; the heating plate is located on the outer side of the phase-change material container and is externally connected with a power supply so as to be used for heatingthe phase-change material; the heat preservation and insulation layer is located on the outer side of the heating plate and is used for preserving heat and providing safety protection; the outer frameis located on the peripheries of the heat preservation and insulation layer, the heating plate and the phase-change material container and plays a role in supporting; and the temperature controller is located on the outer frame and is used for connecting the power supply and the heating plate so as to control the heating of the heating plate. According to the low-temperature phase-change energy-storage electric heater provided by the invention, an effect on storing energy at low temperature is achieved by utilizing phase change, and the energy storage temperature range is 50 to 70 DEG C, so that the potential safety hazard is low. The energy storage density is large, and energy is stored by utilizing the phase change and specific heat, so that more energy can be stored under the same volume and weight according to the low-temperature phase-change energy-storage electric heater provided by the invention compared with an existing electric heater for storing energy by simply specific heat.
Owner:北京爱上地科技集团有限公司 +1

An intermittent fluidized thermal energy and chemical energy storage and release reaction device and working method

The invention discloses an intermittent fluidization thermal energy and chemical energy storage and release reaction device and a working method. The device comprises a fluidization system, a heat exchange system and a gas-solid separation system. The fluidization system is located at the bottom of the reaction device. The heat exchange system is located in the middle of the reaction device. The gas-solid separation system is located at the top of the reaction device. The fluidization system is connected with the heat exchange system through an internal horizontal baffle. The heat exchange system is connected with the gas-solid separation system through a cyclone separator. The gas-solid separation system is connected with the fluidization system through an external material guide pipe. According to the intermittent fluidization thermal energy and chemical energy storage and release reaction device and the working method, a thermochemistry energy storage mode is adopted, and the thermal conversion efficiency is high; backmixing of reactants is reduced through an intermittent reaction; the reaction is more sufficient through secondary gas inlet; the energy storage process and the energy release process are conducted independently, and operation is easy; and the gas-solid separation system is arranged internally, so that the separated gas has the advantages of being purer and easy to recycle. The intermittent fluidization thermal energy and chemical energy storage and release reaction device and the working method can be used for occasions of solar-powered Rankine power generation or other large-scale thermal energy storage, and the thermal energy grade is improved.
Owner:SOUTH CHINA UNIV OF TECH
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