201results about How to "Improve energy storage efficiency" patented technology

The invention belongs to the technical field of energy storage, and particularly relates to a vertical circulation type gravity energy storage system based on a linear motor, the vertical circulation type gravity energy storage system comprises a circulation shaft, a carrying platform system and an energy storage system, the circulation shaft comprises a heavy object shaft, a no-load shaft and a horizontal channel, and a secondary switching disc is arranged at the joint of the heavy object shaft and the horizontal channel and the joint of the no-load shaft and the horizontal channel; the heavy well, the no-load well, the horizontal channel and the secondary switching disc are each provided with a secondary driving side, and each secondary driving side comprises a first rail set and a linear motor secondary; the platform deck system comprises a plurality of platform decks, the platform decks are used for bearing heavy objects, primary switching discs are arranged on the side faces of the platform decks, primary driving sides are arranged on the platform decks and the primary switching discs, and each primary driving side comprises a second track set and a linear motor primary; the energy storage system includes an upper storage bin, a lower storage bin, and a loading and unloading zone. The energy storage capacity expansion mode is simple, the expansion cost is low, the energy storage capacity configuration is flexible, and the energy storage efficiency is high.

The invention relates to the technical field of intelligent monitoring, in particular to an intelligent monitoring type photovoltaic power generation system, which converts light energy into electric energy through a photovoltaic module and stores the electric energy, and changes the thermal compensation condition of the temperature of each area of an energy storage battery according to the actual situation. The temperature of different areas of the energy storage battery is monitored through the monitor, the electric energy parameters of the energy storage battery are obtained, historical data monitored by the monitor are stored through the prior analyzer, and a severe influence period and a gentle influence period are distinguished through the photovoltaic controller based on temperature influence tendency characterization values corresponding to different temperature influence periods. And monitoring the energy storage battery, determining an energy conversion characterization parameter to predict whether the energy storage effect of the energy storage battery meets a predetermined standard or not so as to determine whether the thermal compensation device is started or not, and adaptively intervening the thermal compensation device by considering the influence of the temperature difference of the energy storage battery on the energy storage efficiency in the operation process of the photovoltaic system. Therefore, the energy storage efficiency and the power generation efficiency of the photovoltaic system are ensured.

The invention discloses a high-entropy lead-free energy storage ceramic material and a preparation method and application thereof. The preparation method comprises the following steps: S1, weighing: respectively weighing precursor raw materials according to a stoichiometric ratio for later use; s2, primary ball milling: mixing the weighed precursor raw materials and then carrying out ball milling; s3, pre-sintering: pre-sintering the slurry subjected to ball milling; s4, secondary ball milling: carrying out ball milling on the pre-sintered raw materials again, and drying to obtain pre-sintered ceramic powder; s5, molding: adding a binder into the pre-sintered ceramic powder, and then carrying out compression molding to obtain a ceramic blank; s6, glue discharging and sintering: heating the obtained ceramic green body, and then carrying out heat preservation treatment to obtain a glue-discharged green body; and then, sintering the rubber-removed green body. According to the magnesium-lanthanum co-doped high-entropy ceramic strategy, the relaxation behavior and voltage breakdown resistance of the ceramic material are remarkably improved, the polarization intensity is improved, meanwhile, high energy storage density and high energy storage efficiency are achieved, and the prepared high-entropy ceramic is good in comprehensive performance.

The invention relates to plasticity-enhanced lead lanthanum zirconium tin titanate-based antiferroelectric ceramic and a preparation method thereof. The chemical formula of the zirconium tin lead titanate lanthanum-based anti-ferroelectric ceramic is (Pb < 0.975-x > La < 0.02 > Sr < x >) (Zr < 0.5 > Sn < 0.37 > Ti < 0.13 >) < 0.9975 > O < 3 >, x is smaller than or equal to 0.10; and sintering by adopting a flash sintering technology to prepare the plasticity-enhanced lead lanthanum zirconate tin titanate-based antiferroelectric ceramic. Wherein the initial electric field intensity is set to be 100-300 V / cm, and the temperature rise rate of the flash sintering furnace body is 5-15 DEG C / min; when the reading of the current detector reaches the order of magnitude of [mu] A, the electric field intensity is increased to 200-500V / cm; after the current density value reaches 10-30 mA / mm < 2 >, the stable current density is kept for 90-200 s; preferably, the temperature rise rate of the flash burning furnace body is 8-12 DEG C / min.

The invention provides BCZT-BNT-based lead-free composite energy storage ceramic with high breakdown strength and a preparation method of the BCZT-BNT-based lead-free composite energy storage ceramic, and belongs to the field of dielectric energy storage ceramic materials. The general formula of the chemical composition is (1-x) [0.25 (Bi < 0.5 > Na < 0.5 >) TiO < 3 >-0.75 Ba < 0.85 > Ca < 0.15 > Zr < 0.1 > Ti < 0.9 > O < 3 >]-xBaZrO < 3 >, and x is the mole number and ranges from 0.05 to 0.20. According to the preparation method disclosed by the invention, chemical component disorder is induced by doping modification on an atomic scale, and a high-dynamic-polarity nano micro-region (PNRs) is formed, so that the nano micro-region has an obvious dielectric relaxation behavior and a slender ferroelectric hysteresis loop (P-E ring), and the energy storage ceramic material with high energy storage density and energy storage efficiency, ultrahigh breakdown strength and excellent frequency stability is obtained.

The invention discloses a photovoltaic panel temperature adjusting and cleaning system based on cross-seasonal energy storage and a use method, and belongs to the technical field of photovoltaic power generation. The system comprises a cross-seasonal energy storage and temperature regulation system connected with a solar photovoltaic panel, wherein a snakelike flow channel is arranged on a back plate of the solar photovoltaic panel; the cross-seasonal energy storage and temperature regulation system comprises water storage bodies, an outlet of one water storage body is connected with an inlet of a water inlet pipeline, an outlet of the water inlet pipeline is connected with a water cooling cabinet, the water cooling cabinet is connected with a water inlet of a snakelike flow channel, a water outlet of the snakelike flow channel is connected with an inlet of a water outlet pipeline, and an outlet of the water outlet pipeline is connected with an inlet of the other water storage body. A cleaning system is arranged on the solar photovoltaic panel, and a water inlet of the cleaning system is connected with an outlet of the cleaning water branch of the water outlet pipeline. Through organic combination of photovoltaic panel temperature adjustment, cleaning and cross-seasonal energy storage technologies, energy consumption can be reduced, temperature adjustment and cleaning functions can be comprehensively optimized, and the overall efficiency and stability of a photovoltaic system are improved.

The invention relates to an open type carbon dioxide energy storage system and a carbon dioxide energy storage method. The open type carbon dioxide energy storage system comprises a gas compression device, a first expansion unit, a gas-liquid separation tank, a main cooler, a circulating compressor unit, a liquid storage tank, a regenerator and an energy release device. An inlet of the gas compression device is used for being communicated with an air discharging outlet of a coal chemical device, and an outlet of the gas compression device is communicated with an inlet of the first expansion unit and a hot side inlet of the main cooler. A hot side outlet of the main cooler is communicated with an inlet of the liquid storage tank; an outlet of the first expansion unit communicates with an inlet of the gas-liquid separation tank, and a gas outlet of the gas-liquid separation tank communicates with a cold side inlet of the main cooler. A cold side outlet of the main cooler communicates with an inlet of the circulating compressor unit, and an outlet of the circulating compressor unit communicates with an inlet of the gas compression device. The system and the method disclosed by the invention have relatively high energy storage efficiency and energy utilization rate.

The invention discloses a lead-free energy storage ceramic laminated material, and belongs to the technical field of dielectric energy storage. The lead-free energy storage ceramic laminated material is formed by sequentially laminating lead-free energy storage ceramic with a texture structure and lead-free energy storage ceramic with a non-texture structure, and preferably, the material comprises at least three layers; when the lead-free energy storage ceramic with the texture structure is positioned on the middle layer, the lead-free energy storage ceramic with the non-texture structure is positioned on the two sides of the middle layer; when the lead-free energy storage ceramic with the non-texture structure is located on the middle layer, the lead-free energy storage ceramic with the texture structure is located on the two sides of the middle layer. Based on the structural design of at least three layers, the non-textured ceramic is selected as the high-voltage-resistant layer, the textured ceramic is selected as the high-polarization layer, the lead-free ceramic laminated material with excellent energy storage performance is obtained, and the lead-free ceramic laminated material has wide application prospects in the fields of power electronics and pulse power.

The invention relates to A-site double-rare earth ion co-doped antiferroelectric ceramic as well as a preparation method and application thereof. The general formula of the ceramic structure is Pb (1.01-1.5 n-y) MnCay (Zr < 1-x > Snx) 0.995 O3, wherein M comprises a rare earth element, and 0.3 lt; x is less than or equal to 0.5, 0.02 lt; n is less than or equal to 0.04, 0lt; y < = 0.03; the ceramic is constructed by multi-element A-site substitution, so that the stability of the antiferroelectric phase of the ceramic is improved, the densification growth is also promoted, and the breakdown electric field of the antiferroelectric ceramic is improved; meanwhile, the growth size of ceramic crystal grains can be inhibited, and the breakdown electric field of the ceramic is improved; the thickness of the anti-ferroelectric ceramic is 25-40 [mu] m, the energy storage density is 23-35 J / cm < 3 >, and the energy storage efficiency is up to 70% or above; compared with the prior art, the energy storage density of the prepared ceramic material is increased by 6-25 J / cm < 3 >, and the discharge time is remarkably shortened.

The invention relates to the technical field of energy storage, and discloses a constant-pressure compressed air energy storage device and an energy storage system.The constant-pressure compressed air energy storage device is characterized in that an energy storage library is divided into a first closed cavity and a second closed cavity by a flexible air bag; first fluid is stored in the second closed cavity; the interior of the flexible air bag is communicated with the second closed cavity; during energy storage, compressed air enters the first closed cavity, the flexible air bag is compressed, the size of the first closed cavity is increased, the first fluid in the second closed cavity is compressed and liquefied, and temperature rise and pressure rise of the compressed air are relieved; during energy release, the first fluid is heated, the first fluid absorbs heat to be gasified and transfers heat to the compressed air, the flexible air bag expands, the size of the first closed cavity becomes small, and air is exhausted. During energy storage, gas storage is approximate to constant pressure, temperature and pressure increase of the first closed cavity is slowed down, more air is stored, and power consumption is reduced; and during energy release, temperature and pressure reduction is relieved, approximate constant pressure is achieved, and output air energy is increased.

The invention provides a cleaning device and cleaning equipment for a photovoltaic panel of a photovoltaic power station, relates to the technical field of cleaning, and aims to solve the problems of low cleaning efficiency and poor cleaning effect in the prior art. The cleaning device comprises a movable frame, a dust removal assembly, a cleaning brush roller assembly and a spraying assembly. The movable frame is used for being movably connected with the photovoltaic panel. The dust removal assembly is arranged on the moving frame and located at the front end of the moving frame in the walking direction, and the dust removal assembly is configured to sweep, suck and discharge stains or impurities located on the photovoltaic panel; the cleaning brush roller assembly is arranged on the moving frame and located at the rear end of the moving frame in the walking direction, and the spraying assembly is arranged on the moving frame and located on one side of the cleaning brush roller assembly; the spray assembly is configured to spray a cleaning medium to the photovoltaic panel. Through mutual cooperation of the cleaning assembly, the spraying assembly and the dust removal assembly, the cleaning efficiency and the cleaning effect of the cleaning device can be improved.

The utility model relates to a photovoltaic energy storage container which comprises an energy storage container body, the top face of the energy storage container body is an inclined face, a first solar panel is arranged on the inclined face, the first solar panel is connected with a square frame through a hinge piece, and a second solar panel is embedded in the frame. The two sides, on the two sides of the hinged piece, of the frame are each provided with a guide rail, rolling wheels capable of sliding in the guide rails are arranged in the guide rails, the middles of the left side face and the right side face of the energy storage container body are each provided with a rotating device, and the rotating devices and the rolling wheels on the same side are connected through lifting rods. The photovoltaic energy storage container has the advantages that the two solar panels work at the same time, so that the energy storage efficiency is improved; the position of the sun is changed and moved, and the sun is contacted with the sun for a longer time and a larger area as much as possible.

The invention discloses an underground artificial tunnel energy storage cavern flexible sealing layer which is formed by lap joint of a plurality of flexible sealing units, and each flexible sealing unit comprises a high-elasticity rubber body layer, an HDPE stereoscopic film and a high-strength filament net; the high-strength filament net is attached to the inner side face of the HDPE three-dimensional film, then the high-elasticity rubber body is sprayed to achieve composite connection, the ends of the anchoring parts are arranged in a protruding mode and poured together with concrete, and tight connection and attachment of the HDPE three-dimensional film, the high-strength filament net and the high-elasticity rubber body and the reinforced concrete lining are achieved; the sealing performance and the pressure resistance of the energy storage cavern of the artificial tunnel are improved; the flexible sealing layer forms a full-wrapping complete HDPE three-dimensional anti-leakage system, potential leakage of an internal energy storage medium passing through the energy storage cavern structure is comprehensively blocked, local defects such as the leakage risk of cracks caused by deformation of the energy storage cavern are greatly reduced, the sealing performance of the structure can be guaranteed to the maximum extent, the service life of the energy storage cavern is greatly prolonged, and the energy storage cavern is suitable for large-scale popularization and application. And the energy storage efficiency of the cavern is improved.

The invention discloses an efficient chilled water storage system, and relates to the technical field of cold storage, the efficient chilled water storage system comprises a mounting plate, a cold storage assembly for cooling air is arranged at the top of the mounting plate, and an energy storage assembly for cooling water again is arranged at the position, close to the center, of the top of the mounting plate. According to the efficient chilled water storage system, in high-temperature weather in summer, in order to effectively reduce power consumption in the peak period, a water source is cooled to the needed temperature through the refrigerator body and stored in the cold storage water tank, when external air needs to be cooled, the water pump is started, cooling water is conveyed into the shell, and the water source is cooled. Meanwhile, external hot air is conveyed into the multiple tube plates, heat exchange is achieved between the external hot air and external cooling water, then the temperature of the hot air is controlled through the cooling water under the effect of the temperature difference, and resources are saved.

The invention relates to the technical field of thermal insulation materials, in particular to a ceramic gel phase change energy storage self-thermal insulation structure and a preparation method thereof.Silicon dioxide sol and zirconium dioxide sol are mixed and then added with paraffin to prepare a phase change material, and the phase change material has the effects of enhancing the heat conduction performance and improving energy storage; the silicon dioxide and the zirconium dioxide both have good heat conduction performance, the heat conduction efficiency of the paraffin serving as the phase change material can be remarkably improved by mixing the silicon dioxide and the zirconium dioxide with the paraffin, heat can be transmitted and distributed in an energy storage structure more quickly, and the porous structure with high porosity serves as a carrier to bear the phase change material; the uniform distribution of heat can be facilitated, so that the heat-conducting property of the energy storage structure is further enhanced; the carbon fibers and the steel fibers are dispersed in the polyvinyl chloride to improve the strength of the polyvinyl chloride, and then the surface of the ceramic gel structure is coated with the polyvinyl chloride to package the phase-change material in the porous ceramic, so that the situation of leakage or performance degradation of the phase-change material is prevented to a certain extent.

The invention relates to a low-heat-conduction high-strength phase change energy storage wallboard and a preparation method and application thereof.The phase change energy storage wallboard comprises a wallboard base material D and a phase change material, the wallboard base material D is a cement-based material with a directional communication pore channel structure, and the phase change material is loaded in the directional communication pore channel structure. The preparation method comprises the following steps: preparing a wallboard base material D with a directional communicated pore channel structure through a freeze casting method; loading the phase change material into the wallboard base material D through a vacuum impregnation method to obtain a wallboard base material E; the wallboard base material E is put into a temperature control curing room to be cured for 1-2 days, and the low-heat-conduction and high-strength phase change energy storage wallboard is prepared. Compared with the prior art, the contradictory requirement between the heat conductivity and the strength of the wallboard is met, the vertical bearing capacity of the wallboard is greatly improved, and the heat conductivity coefficient of the wallboard is remarkably reduced. The phase change energy storage wallboard has extremely high mechanical properties and flexible and efficient temperature regulation and control effects.

The invention discloses a desert-area-oriented hybrid energy storage and wind-light prediction collaborative optimization method, which comprises the following steps of: firstly, carrying out equipment modeling constraint on a multi-energy complementary system including a wind power generation system, a photovoltaic power generation system, a hybrid energy storage system and the like; establishing a wind and light prediction model by adopting BP neural network classification prediction optimized by a particle swarm algorithm; and performing joint optimization on the wind energy and illumination prediction model and the multi-energy complementary system optimization model containing the hybrid energy storage by using a differentiation creative search algorithm, and taking the wind energy and illumination prediction result as the input of the multi-energy complementary system optimization model containing the hybrid energy storage to obtain an optimal energy supply and energy storage scheduling scheme. The method has the advantages that the carbon emission is reduced, the consumption of new energy is promoted, the operation cost of the comprehensive energy system is reduced, the energy supply pressure is reduced, and the like.

The invention relates to the technical field of dielectric energy storage device materials, in particular to high-entropy designed bismuth ferrite-based energy storage ceramic as well as a preparation method and application thereof, the chemical composition formula of the material is (0.7-x) Bi < 0.9 > (Sm < 0.5 > Gd < 0.5 >) < 0.1 > FeO < 3-0.3 > (Sr < 0.5 > Ba < 0.5 >) TiO < 3-x > NaNbO < 3-y > MnO < 2 >, the value range of x is 0-0.15, and the value range of y is 0-0.005. The relaxation ferroelectric material is designed by adopting a high-entropy strategy, and various elements occupy the same site of the material to generate lattice distortion, so that the relaxation characteristic of bismuth ferrite-based ceramic is promoted, and a ferroelectric hysteresis loop is optimized. The NaNbO3 anti-ferroelectric material is introduced, the long-range ferroelectric order is destroyed, the local random field is enhanced, and a low Pr value can be obtained. And in addition, the concentration of oxygen vacancies can be reduced by properly adding 0.5% mol of MnO2, so that the leakage current of the material is reduced, the energy storage efficiency is improved, and the material design not only enriches the application field of the high-entropy ceramic, but also provides a new thought for improving the performance of the energy storage ceramic.

The invention provides a thermal insulation material and a battery pack. The thermal insulation material comprises cellulose aerogel and an organic phase change material dispersed in the cellulose aerogel; wherein the cellulose aerogel is obtained by reacting bacterial cellulose with a cross-linking agent. According to the thermal insulation material provided by the invention, the cross-linking agent is used for modifying the bacterial cellulose aerogel, the pore diameter of the cellulose aerogel is greatly improved, the cellulose aerogel is used as a supporting material of an organic phase change material, the thermal insulation material with ultrahigh energy storage efficiency is prepared, and the thermal insulation material can be applied between battery cells when the heat generated by a monomer battery cell is too high. Heat is effectively absorbed, and heat spreading of the battery cells caused by direct heat conduction between the battery cells between the modules is prevented.

The invention discloses an energy storage cabinet and an energy storage system.The energy storage cabinet comprises a cabinet body, a cooling fan, a controller and an opening and closing sensor, the cabinet body comprises a cabinet door and a cabinet body which are connected, the cabinet door is provided with a first position and a second position relative to the cabinet body, and when the cabinet door is located at the first position, the internal space of the cabinet body is isolated from the external space of the cabinet body; when the cabinet door is located at the second position, the internal space of the cabinet body is communicated with the external space of the cabinet body; the heat dissipation fan is installed on the side wall of the cabinet body. The space in the cabinet and the space outside the cabinet body form a commutation channel through the operation of the heat dissipation fan; the controller is electrically connected with a power supply of the energy storage cabinet and the heat dissipation fan; the opening and closing sensor is located in the cabinet inner space and is electrically connected with the controller; the opening and closing sensor is used for collecting the position state of the cabinet door, and the controller controls operation of the cooling fan according to the position state.

The invention provides a PbZrO3 antiferroelectric capacitor and a preparation method thereof, and relates to the technical field of ferroelectric materials, the PbZrO3 antiferroelectric capacitor comprises a first electrode layer, a PbO layer, a solid solution ferroelectric antiferroelectric layer, a LaNiO3 layer and the like, and phases in the solid solution ferroelectric antiferroelectric layer comprise PbZrO3, a ferroelectric and an Ag-containing Au phase. The invention also provides a preparation method of the capacitor, and the method comprises the following steps: depositing a LaNiO3 precursor solution on a single crystal substrate, and carrying out the crystallization; mixing the PbZrO3 precursor solution with the ferroelectric precursor solution, and then adding Au nanoparticles containing Ag; the LaNiO3 layer is coated with the mixed solution, and crystallization is carried out; depositing the PbO precursor solution on the surface of the antiferroelectric layer of the solid solution ferroelectric, and crystallizing; and carrying out gold electrode deposition to obtain the PbZrO3 antiferroelectric capacitor. The capacitor is high in energy storage efficiency and high in dielectric constant.

The invention provides a capacity and energy storage system utilizing compressed air, pumped storage and PVT coupling, the coupling system comprises a pumped storage power generation unit, a compressed air energy storage unit and a compressed air power generation unit, and the pumped storage utilizes upper and lower water storage spaces for energy storage and power generation; an upper air storage space and a lower air storage space which are formed when the air compressor couples water pumping and power generation are used for energy storage and turbine power generation, the water pumping energy storage unit is connected with the compressed air energy storage power generation unit, the PVT photovoltaic photo-thermal reheating unit is connected with the turbine power generation unit, and an inlet of the high-pressure energy storage and air storage unit is connected with the air compressor. A gas inlet of the solar reheating unit is communicated with an outlet of the high-pressure energy and gas storage unit; the turbine power generation unit comprises a turbine communicated with a gas outlet of the solar reheating unit; and the turbine, the water pump, the water turbine and the air compressor are all electrically communicated with the PVT plate. According to the invention, the comprehensive energy production and storage utilization of local photoelectric storage and abandoned wind-solar-thermal power storage is realized, and the pumped storage of the totally-closed reservoir is realized.

The embodiment of the invention provides an offshore wind power high-pressure compressed air energy storage system and a working method thereof.The offshore wind power high-pressure compressed air energy storage system comprises a high-pressure compression subsystem and an expansion subsystem which are connected with a pressure container and a control unit, and the high-pressure compression subsystem, the pressure container and the expansion subsystem are arranged on an offshore booster station and / or an offshore wind turbine; the high-pressure compression subsystem is used for compressing air and storing the compressed air in a pressure container; the expansion subsystem is used for converting energy into electric energy and transmitting the electric energy to an onshore power grid; and the control unit is used for determining that the high-pressure compression subsystem is used for storing the electric energy or the expansion subsystem is used for releasing the electric energy according to the real-time electric power and the real-time output power of the offshore wind turbine. According to the system, offshore wind power is stored in the electricity consumption valley period and released and used in the electricity consumption peak period, and the output electric power quality can be improved; the energy density of compressed air is improved in a high-pressure compressed gas form; and the requirement for storage space is reduced, geographic factors and space limitation are avoided, and the engineering cost is reduced.

The utility model provides a temperature regulating system of a compressed air energy storage chamber, which comprises an artificial chamber horizontally arranged underground, a vertical shaft arranged at the top of the artificial chamber, an air circulating pipeline and a water pipeline, the air circulating pipeline and the water pipeline are arranged in the artificial chamber, and an air inlet and an air outlet at two ends of the air circulating pipeline are oppositely arranged along two sides of the artificial chamber respectively. An axial flow fan is arranged in an air inlet of the air circulating pipeline, the water pipeline comprises a water inlet pipeline and a water outlet pipeline, the water inlet pipeline is communicated with a water outlet of the warm water tank and an in-plant circulating cooling water inlet, the water outlet pipeline is communicated with a water inlet of the cold water tank and an in-plant circulating cooling water return port, and a spiral heat exchange pipe is arranged between the water inlet pipeline and the water outlet pipeline. The spiral heat exchange pipe is embedded in the air circulation pipeline behind the axial flow fan and used for exchanging heat with air in the chamber, adjusting the temperature of the air in the artificial chamber during inflation energy storage and deflation energy release, guaranteeing the structural safety of surrounding rock around the artificial chamber and prolonging the service life of sealing materials in the chamber.

The invention discloses an extensible industrial and commercial energy storage system which comprises an energy storage module, a battery management module, a liquid cooling circulation module, an energy management module and a fire protection module. The energy storage module is used for storing electric energy; the battery management module is used for collecting and uploading parameter information of the energy storage module; the liquid cooling circulation module is responsible for heat conversion of the storage module; the energy management module is used for charging and discharging management of the energy storage module; and the fire-fighting module is responsible for fire detection and fire extinguishing functions of the energy storage module. The requirement of a user for high-capacity energy storage can be met, meanwhile, cost and maintenance difficulty are reduced, and reliability and flexibility of the system are improved. By adopting the framework of unified management of multiple groups of battery clusters and the optimized energy management system and cooling system, the balanced output of the battery clusters can be realized, the service life of the battery is prolonged, and the energy storage efficiency is improved. The invention also has the advantages of easy integration and installation, low requirement on site space and the like, and is suitable for various industrial and commercial application environments.

The utility model discloses an integrated photovoltaic energy storage lighting device which comprises a shell, and a module installation groove and a battery bin are formed in the shell. The shell and the heat dissipation plate are arranged, the heat dissipation plate is attached to the storage battery and the LED lamp modules, when the storage battery and the LED lamp modules are heated, heat is conducted and dispersed by the heat dissipation plate, the dispersed heat and external air are exchanged and circulated through heat dissipation holes, and the service life of each module is prolonged; through the arrangement of a first supporting column, a fixing disc, a limiting assembly, an adjusting disc and a second supporting column, when the angle of the photovoltaic panel needs to be adjusted according to the position of the sun, a plug bolt is pulled upwards, the outer wall of the plug bolt is separated from the inner wall of a limiting hole, then the first supporting column is rotated to drive the photovoltaic panel to rotate, and after adjustment, the plug bolt is loosened, and a spring drives the plug bolt to reset. According to the photovoltaic panel, the structure is simple, the angle adjustment is flexible, and the power generation efficiency and the energy storage efficiency of the photovoltaic panel are improved.

The utility model discloses a mountain gravity energy storage system which comprises a water pumping system, a gravity conveying system and an energy storage assembly. The water pumping system comprises a first reservoir, a second reservoir and a first reversible unit. The first reservoir and the second reservoir are communicated through a first auxiliary pool, a connecting pipeline and a second auxiliary pool. The gravity conveying system comprises a conveying rail used for bearing a gravity block, a first storage bin and a second storage bin. The gravity conveying system further comprises a second reversible unit, the second reversible unit drives the gravity block to ascend in the driving mode, and the second reversible unit generates power through the descending potential energy of the gravity block in the power generation mode. By arranging the water pumping system and the gravity conveying system, in the electricity trough period, it is guaranteed that the mountain gravity energy storage system can fully utilize electric energy and conduct gravity energy storage; and in the peak period of power utilization, the first reversible unit and the second reversible unit are driven to generate power, so that the power supply requirement is met, and the stability and the energy storage efficiency of the mountain gravity energy storage system are guaranteed.

The invention relates to the photovoltaic field, and discloses a photovoltaic energy storage charging system, which comprises four groups of photovoltaic panels and an energy storage battery, the photovoltaic panels are arranged in each frame, U-shaped air pipes are arranged in the frames, the U-shaped air pipes are used for heat dissipation and dust removal, the U-shaped air pipes are driven by a first fan assembly, the frames are fixed with a protection assembly, and the energy storage battery is arranged in the protection assembly. And the protection assembly drives the frame to turn over, so that the photovoltaic panel turn-over surface is folded. According to the invention, through the arrangement of the protection assembly, when the wind power is too large and the photovoltaic panels are easy to damage, power is provided through external wind power, each photovoltaic panel is folded to avoid damage, the wind power is utilized, environmental protection and no pollution are realized, the energy consumption of equipment is reduced, and the photovoltaic panels are arranged in a staggered manner from top to bottom after being folded, so that the use space is saved, and the illumination area is increased; and the energy storage efficiency is improved.

The invention relates to a photovoltaic power generation energy storage device, which comprises a photovoltaic power generation device and a flow battery, the photovoltaic power generation device comprises a photovoltaic power generation panel, the flow battery comprises an anolyte storage tank, a catholyte storage tank and a galvanic pile, the anolyte storage tank and the galvanic pile as well as the catholyte storage tank and the galvanic pile are respectively provided with a first electrolyte conveying header pipe, the first electrolyte conveying header pipe is provided with a first conveying pump and a first heat exchanger, the photovoltaic power generation device is provided with a ventilation heat exchange channel, the ventilation heat exchange channel is provided with a ventilation header pipe, the first heat exchanger and the ventilation header pipe are provided with first gas conveying branch pipes, the ventilation header pipe is provided with a fan and a second heat exchanger, and the second heat exchanger is provided with a water storage tank. The water storage tank is communicated with a second circulating water conveying header pipe, and the first heat exchanger and the second circulating water conveying header pipe are provided with first circulating water conveying branch pipes. And energy released by the photovoltaic module is recovered to maintain the working temperature of the all-vanadium redox flow battery. The device is convenient to use and has a wide market prospect.

The application provides an energy storage device, an energy storage module, an energy storage system, a charging network and a heat management method thereof. The energy storage device comprises an energy storage module, a heat exchange module, a heat dissipation module and a heat exchange pipeline assembly. The energy storage module comprises a plurality of battery devices. At least part of the heat exchange module is embedded in a ground source to exchange heat with the ground source. At least part of the heat dissipation module is exposed to an atmospheric source to exchange heat with the atmospheric source. The heat exchange pipeline assembly is used to circulate a heat exchange medium. The heat exchange pipeline assembly comprises a main heat exchange pipeline, a first bypass pipeline, a second bypass pipeline and a third bypass pipeline. The heat exchange module and the heat dissipation module can exchange heat with the battery devices. The energy storage device provided by the application has low operating power consumption, thereby effectively improving the energy storage efficiency of the energy storage device.