116 results about "Thermochemical reaction" patented technology

The invention discloses a double-medium thermochemical energy storage system and method. The double-medium thermochemical energy storage system comprises a first regulating valve, a gas storage tank, a thermochemical reactor, a fan, a steam pocket, a water feeding pump and a circulating water pump, the first regulating valve is communicated with an inlet of the gas storage tank through the fan and the electric heater, an outlet of the gas storage tank is communicated with an inlet of a heat exchange tube in the thermochemical reactor, an outlet of the heat exchange tube in the thermochemical reactor is divided into two paths, one path is communicated with an inlet of the fan, and the other path is communicated with a shell side inlet of the steam pocket; a bottom outlet on the shell side of the steam drum is communicated with an inlet of the circulating water pump after being combined with an outlet of the water feeding pump through a pipeline, an outlet of the circulating water pump is communicated with an inlet of a heat exchange pipe in the thermal chemical reactor, a shell side outlet of the thermal chemical reactor is communicated with the pipe side of the steam drum, and a pipe side inlet of the thermal chemical reactor is communicated with a drainage pipe. According to the system and the method, the heat exchange efficiency of the thermochemical reactor can be improved.

A thermochemical reactor for receiving a source of atmospheric carbon dioxide and reducing the atmospheric carbon dioxide is provided. In one or more embodiments, the thermochemical reactor may be part of an atmospheric carbon capture system that includes a solid sorbent and an exchange fluid that is cycled between the solid sorbent and the thermochemical reactor.

The invention provides a tip Raman-based metal oxide nanoparticle in-situ detection method, which comprises: S1, dispersing metal oxide nanoparticles in a nanoparticle dispersion liquid, focusing laser to the tip of a nanometer tip through an objective lens, capturing a single nanoparticle by using an optical tweezers technology, and attaching the single nanoparticle to the nanometer tip; s2, focusing Raman laser on a nano needle tip-particle interface, generating a local high-temperature field through a photo-thermal near-field coupling effect, triggering a thermal chemical reaction of nano particles, and synchronously collecting a Raman spectrum; and S3, carrying out pretreatment and characteristic peak analysis on the collected Raman signal of the Raman spectrum, and determining the reaction critical temperature and the dynamic process in combination with temperature calibration data. According to the invention, capture and accurate heating of the nanoparticles are realized through photo-thermal coupling of the optical tweezers and the needle tip, and thermal chemical reaction monitoring of the nanoparticles is realized.

A thermal plasma can be generated using a pair of electrodes spaced apart from each other by a gap along a first direction. One or more reactants can be conveyed into and / or through at least a portion of the generated plasma. For example, the portion of the generated plasma can subject the reactant(s) to a temperature of at least 1000 K. As a result, the one or more reactants can undergo a thermochemical reaction that converts the one or more reactants into one or more products.

The invention discloses a thermochemical energy storage system and method of an integrated heat pump, an outlet of a water storage tank is communicated with a shell side inlet of a thermochemical reactor through a first water pump and a pipe side of a steam generator, and a shell side outlet of the thermochemical reactor is communicated with an inlet of the water storage tank through a shell side of a preheater and a pipe side of a waste heat recoverer; an outlet of the second water pump is divided into two paths, one path is communicated with the pipe side of the thermochemical reactor, the other path is communicated with the pipe side of the high-temperature heat exchanger through the pipe side of the preheater, and an outlet of the compressor is communicated with an inlet of the expansion machine sequentially through the shell side of the steam generator and the shell side of the high-temperature heat exchanger. And an outlet of the expansion machine communicates with an inlet of the compressor through the shell side of the waste heat recoverer. By means of the system and method, heat can be effectively recovered.

The invention discloses a cabin multi-dimensional fire simulation method and system for fire personnel training, and the method comprises the steps: carrying out the modeling of a cabin, generating a digital twinborn body of the cabin, carrying out the initialization, and constructing a thermal fluid dynamic field, the digital twinborn body comprises a cabin geometric structure, a combustible material distribution condition and a linkage control interface of fire fighting equipment, and the cabin geometric structure is divided into a plurality of grids; fire information is obtained in real time through a sensor arranged in a cabin and mapped to the corresponding position of the digital twinborn body, a dynamic fire evolution cognitive model used for describing dynamic fire evolution is set, and the dynamic fire evolution cognitive model comprises a thermochemical reaction potential operator and a space coupling operator of flame propagation; and simulating the combustion condition of each grid through a dynamic fire evolution cognitive model, generating a final digital twinborn body, mapping the final digital twinborn body to virtual reality equipment, and completing fire training in a cabin by a user through the virtual reality equipment.

A hole structure forming method comprises the following steps: providing a substrate, and sequentially forming a hard mask layer and a photoresist mask layer on the substrate; the method comprises the following steps of: etching a hard mask layer by using a photoresist mask layer to form a groove which at least penetrates through the hard mask layer, carrying out in-situ thermal chemical reaction treatment on the side wall of the groove so as to form a protective layer of which the compactness is higher than that of the hard mask layer on the side wall of the hard mask layer, and then taking the residual hard mask layer as a mask, and etching the substrate by adopting a dry etching process to form the deep hole. The protection layer is formed through in-situ thermal chemical reaction growth, and the structure of the protection layer is compact, so that in the process of performing dry etching on the substrate to form the deep hole, the protection layer can effectively resist the damage of etching plasma to the side wall of the hard mask layer in the dry etching process, the deep hole with better side wall morphology can be formed, and the service life of the deep hole is prolonged. The consistency of the width sizes of the top and the bottom of the deep hole is improved, and the electrical performance and the reliability of the finally formed semiconductor structure are improved.

Thermogravimetric Reactor (TGR) and process to study weight change behavior of carbonaceous solids / catalysts during thermo-chemical reactions in gaseous environment up to the maximum operating temperature of 1000° C. and at atmospheric pressure are disclosed. The device includes a vertical tube reactor, digital weighing balance, gas feeding system equipped with volumetric flow controllers, rotameters, isolation valves and non-return valves to introduce inert and reactive gases and their mixtures to the reactor. It also has a movable electrical furnace heater for sudden heating / cooling of sample as per requirement. It also has sample feeding / loading system comprising containers of different sizes and shapes with a hanging arrangement There is arrangement to test the product gas composition with on line gas analyzer in the exit line or collecting the outgoing gas from the sampling port for off line gas analysis. The system also has control panel to store and display data including process parameters.

The invention belongs to the field of thermochemical energy storage, and discloses a thermochemical energy storage device based on inductive heating and an operation method thereof, the thermochemical energy storage device comprises a thermochemical reactor, an inductive heating reaction module and an inductive coil; an inner cavity of the thermal chemical reactor is sequentially divided into a preheating section, an inductance heating section and a cooling section from top to bottom, and the inductance heating reaction module is vertically arranged in the inductance heating section; the inductive heating reaction module comprises a plurality of annular cylinders and a steam inlet and outlet pipe, and the annular cylinders are coaxially arranged and sleeved at intervals; a heat exchange working medium channel is formed between every two adjacent annular cylinders; each annular cylinder body comprises a metal inner cylinder and a metal outer cylinder which are coaxial and sleeved at an interval, and an annular material channel is formed between the metal inner cylinder and the metal outer cylinder; the steam inlet and outlet pipes are vertically arranged in the annular material channel and are annularly distributed at intervals; the inductance coil is wound on the outer side of the thermal chemical reactor and is arranged in the area range of the inductance heating section; the rapid and uniform heating requirement in the thermochemical energy storage process is met.

The application discloses a medical waste pyrolysis system and a pyrolysis method based on low-temperature pyrolysis, which comprises a pyrolysis furnace, one end of the pyrolysis furnace is connected with a feeding unit, the other end of the pyrolysis furnace is connected with a slag discharging unit, the front end and the rear end of the pyrolysis furnace are respectively connected with a front distributor and a rear distributor, and the gas outlet of the front distributor and / or the rear distributor is connected with a burner; the burner is connected with the pyrolysis furnace for providing heat; and the burner is connected with a tail gas treatment device through a waste heat boiler. The medical waste is indirectly heated under an oxygen-free or oxygen-deficient working condition, the continuous endothermic and exothermic reactions are utilized, the organic components in the medical waste are subjected to thermal cracking and thermal chemical reactions, the original molecular structure is changed, the medical waste is changed into different phase-state substances, pyrolysis gas and pyrolysis carbon are generated, the continuous pyrolysis treatment of the medical waste is realized, the heat is recycled, and the cost is reduced; and the system has high comprehensive heat energy utilization rate and high waste resource utilization rate.

The invention discloses a heat supply system and method based on thermochemical energy storage and phase change energy storage, an outlet of a water storage tank is divided into two paths after passing through a first water pump, one path is communicated with a pipe side inlet of a thermochemical reactor, the other path is communicated with an inlet of a heat exchanger, a pipe side outlet of the thermochemical reactor is divided into three paths, the first path is communicated with an inlet of the phase change heat storage unit, the second path is communicated with a shell side inlet of the thermochemical reactor, the third path is communicated with an inlet of the heat exchanger, a shell side outlet of the thermochemical reactor is communicated with an inlet of the ejector, an outlet of the water storage tank is communicated with an inlet of the ejector, and an outlet of the water storage tank is communicated with an outlet of the heat exchanger. An outlet of the ejector communicates with an inlet of the phase change heat storage unit, an outlet of the phase change heat storage unit communicates with an inlet of the heat exchanger, an outlet of the heat exchanger communicates with an inlet of the water storage tank, and the energy utilization efficiency of the system and method is high.

Various aspects of this disclosure relate to large-scale commercial systems and methods of thermochemical processes to produce green hydrogen or syngas from one or more of a hydrocarbon, H2O, and CO2 via a thermochemical gas splitting reactor system. In some embodiments, the systems and methods include a standalone thermochemical reactor that bypasses the requirement for direct concentrated solar radiation as the source of process heat. In some embodiments, the systems and methods include a well-insulated, refractory-lined steel pressure vessel, in which process gases heated indirectly via radiation can be delivered to facilitate the desired thermochemical reactions in a fluidized bed configuration.

The invention discloses a lithium battery thermal runaway early detection device and method based on gas spectrum analysis, and relates to the technical field of thermal runaway detection.A miniature gas sampling channel is arranged in a lithium battery pack or near a single battery cell, gas drainage is configured, gas released in the battery operation process is sampled, and gas sample data is obtained; according to the method, a multi-stage gas spectral analysis process is constructed, multi-dimensional spectral characteristics such as spectral peak intensity, spectral position offset and full width at half maximum are extracted from trace release gas collected in the running process of the lithium battery, a thermal runaway risk vector is constructed, and the thermal runaway risk vector is input into a thermal runaway recognition model MOD for real-time risk judgment. The early thermal chemical reaction process in the battery is effectively identified, the pre-judgment of the thermal runaway trend is completed in advance, the early warning of the thermal runaway state of the lithium battery is realized, the preposition of the system response and the safety protection level are improved, and the overall safety performance and reliability of the battery pack are improved.

The application discloses a high-flux heat exchange device based on a thermo-chemical reaction auxiliary, which comprises a heat exchange chamber and a chemical phase change working medium. The chemical phase change working medium comprises a liquid cooling base fluid and a reversible thermal decomposition solute. The thermal decomposition temperature threshold of the reversible thermal decomposition solute is lower than the physical boiling point of the liquid cooling base fluid under the current environment. When the temperature or pressure of the heat exchange surface reaches the thermal decomposition temperature threshold, the reversible thermal decomposition solute undergoes an endothermic decomposition reaction on the heat exchange surface, rapidly generates a large number of non-condensable bubbles and high-frequency separates, thereby triggering strong local micro-convection disturbance of the fluid and absorbing a large amount of chemical decomposition heat, and finally achieving heat dissipation of the heating element. The application accelerates the transfer of wall heat by using a thermo-chemical reaction, and improves the separation rate of bubbles at the solid-liquid interface, breaks the engineering resistance that bubbles are difficult to nucleate and efficiently separate in traditional boiling heat transfer, and realizes rapid and large absorption and transfer of the combined chemical reaction heat of the solute and the latent heat of vaporization of the base fluid.

The invention provides a light energy-electric energy-chemical energy coupling coal-fired unit system and an operation system. The system comprises a coal-fired power generation subsystem, a photovoltaic-thermochemistry subsystem and a Kalina circulation subsystem. The coal-fired power generation subsystem is connected with the photovoltaic-thermochemistry subsystem, and the photovoltaic-thermochemistry subsystem is connected with the Kalina circulation subsystem; the coal-fired power generation subsystem is used for basic power generation and peak regulation of the whole system; the photovoltaic-thermochemistry subsystem is used for converting solar energy into electric energy through a photovoltaic device and driving a reversible thermochemistry device based on a calcium-based compound by using the electric energy, so that conversion and storage of electric energy-heat energy-chemical energy are realized; the Kalina circulation subsystem is used for waste heat utilization of thermal chemical reaction products. The heat storage / release temperature is matched with the coal-fired system through thermochemical reaction pressure regulation and control, dynamic regulation of the Kalina cycle working medium concentration is combined, the irreversible loss of heat transfer is remarkably reduced, and the comprehensive energy utilization efficiency is improved.

The disclosure provides a method of producing hydrogen. The method comprises conducting a thermochemical reaction by contacting a metal, or an alloy thereof, with steam to produce a metal oxide and / or a metal hydroxide and hydrogen. The method then comprises contacting the metal oxide and / or the metal hydroxide produced in the thermochemical reaction with water or a basic aqueous solution to produce a solution comprising a metal ion. Finally, the method comprises conducting an electrochemical reaction by applying a voltage across an anode and a cathode, whereby at least a portion of the cathode contacts the solution comprising the metal ion, to produce hydrogen, oxygen and the metal, or the alloy thereof.

The invention discloses an electricity-heat-hydrogen comprehensive energy system based on thermochemical energy storage, which is characterized in that an outlet of a thermodynamic cycle system is communicated with an inlet of a steam turbine, a steam extraction opening of the steam turbine is communicated with a shell side inlet of a thermochemical reactor, a shell side outlet of the thermochemical reactor is communicated with an inlet of a solid oxide electrolytic tank, and a shell side outlet of the solid oxide electrolytic tank is communicated with a shell side outlet of the steam turbine; a hydrogen outlet of the solid oxide electrolytic tank is communicated with an inlet of the hydrogen storage tank, an oxygen outlet of the solid oxide electrolytic tank is communicated with an inlet of the oxygen storage tank, an outlet of the hydrogen storage tank is communicated with an inlet of the combustion chamber, an outlet of the oxygen storage tank is communicated with an inlet of the combustion chamber, and an outlet of the combustion chamber is communicated with an inlet of the steam turbine. By means of the system, a unit can better absorb new energy for power generation, and stable operation of a power grid is kept.

The application provides a parallel solar photo-thermal chemical coupling lunar surface resource utilization system and method, which mainly comprises a solar light condensing and heat collecting system, a solar light splitter, a thermal chemical reactor, a photochemical reactor, a lunar soil-based thermal chemical circulation oxygen carrier material, a lunar soil-based photochemical catalyst, a heat recovery regulation unit and a vacuum collector. The solar light condensing and heat collecting system and the solar light splitter converge the sunlight irradiated on the lunar surface and supply the sunlight to the thermal chemical reaction and the photochemical reaction, respectively. The high-temperature waste heat of the thermal chemical part is distributed by the heat recovery regulation unit, water decomposition for hydrogen and oxygen production and metal material acquisition are realized by using the lunar soil material, and lunar resource acquisition and efficient utilization are realized.

The invention discloses a thermochemical energy storage system and method of an integrated absorption heat pump, an outlet of a heat exchange tube is communicated with a shell side inlet of a steam pocket, a shell side outlet of the steam pocket is divided into two paths, one path is communicated with a shell side of a thermochemical reactor, the other path is communicated with an inlet of a second heat exchange tube in the steam pocket, and the other path is communicated with an inlet of a second heat exchange tube in the steam pocket. A shell side outlet of the steam pocket is communicated with a steam exhaust pipeline, a water outlet in the bottom of the shell side of the steam pocket is divided into two paths, one path is communicated with an inlet of the first heat exchange pipe, and the other path is communicated with the pipe side of the evaporator through the pipe side of the generator and the mixed flow valve in sequence; a water vapor outlet in the shell side of the generator communicates with a shell side inlet of the heat exchanger sequentially through the shell side of the condenser, the shell side of the evaporator and the shell side of the absorber, a liquid outlet in the shell side of the heat exchanger communicates with a shell side inlet of the absorber, all-day continuous heat supply can be achieved through the system and method, and heat supply parameters are high.

This invention discloses a method for controlling the energy flux density distribution of a concentrating solar furnace device. The method includes: constructing an optical system model of the concentrating solar furnace device; determining an energy flux density distribution control model based on the optical system model, according to the cross-offset parameter within the light focusing point of the reactor, the position parameter of the heat-absorbing platform where the reactor is located, and the curvature parameter of the concentrating mirror; determining control parameters of the concentrating solar furnace device based on the energy flux density distribution control model, according to the set target region size, the peak energy flux control range within the target region, and the range of non-uniformity factors of the energy flux distribution within the target region, combined with the direct normal irradiance (DNI) parameter; the target region is the preset area to be focused by the reflected light; and controlling the operating state of the corresponding components of the concentrating solar furnace device according to the control parameters. This invention solves the problem that existing control methods are insufficient to achieve the desired control of thermochemical reaction products.

A solar concentrator reactor system and method of use for high temperature thermochemical processes. In one embodiment, the solar concentrator reactor system produces a thermochemical reaction of irradiated particles within an enclosed vessel volume of a solar concentrator reactor. In one aspect, the solar concentrator reactor system uses a solar concentrator to irradiate particles of a particle stream within an enclosed vessel volume of a solar concentrator reactor. The thermochemical reaction yields a chemical change of the feedstock and / or phase transition of the feedstock such as the production of a molten reacted material from a solid particulate feed. In one embodiment, the particles are a lunar regolith and the thermochemical reaction yields oxygen.

An outlet of a first feed pump is divided into two paths after passing through a heat exchange tube in a thermochemical reactor, one path is communicated with a steam inlet of a reversible solid oxide fuel cell, and the other path is communicated with an inlet of the heat exchange tube in the reversible solid oxide fuel cell; an outlet of a heat exchange pipe in the reversible solid oxide fuel cell is communicated with a water tank through a second water feeding pump, an oxygen outlet of the reversible solid oxide fuel cell is communicated with an oxygen storage tank, and a hydrogen outlet of the reversible solid oxide fuel cell is communicated with a hydrogen storage tank; an outlet of the first water feeding pump is communicated with a shell side opening of the thermochemical reactor, the steam storage tank is communicated with the shell side opening of the thermochemical reactor, the steam storage tank is communicated with a heat exchange pipe in the reversible solid oxide fuel cell, and the power grid is communicated with a power interface of the reversible solid oxide fuel cell. The system can realize waste heat utilization of the reversible solid oxide fuel cell, and meanwhile, the peak regulation capability of the power grid is improved.

The invention relates to the technical field of thermochemical reaction testing equipment, and provides a microreactor device capable of realizing high temperature and high pressure and a manufacturing method thereof. The microreactor device capable of realizing high temperature and high pressure comprises a corundum microreactor, the corundum microreactor is a corundum tube, a porous ceramic air distribution plate and aluminum oxide particles for preheating are arranged in the corundum tube, two ends of the corundum tube are hermetically connected through flanges and sealing rings, and the aluminum oxide content of the corundum tube is greater than 99%; the heating assembly is arranged outside the alundum tube in a sleeving mode, and the heating assembly comprises heating elements attached to the periphery of the outer wall of the alundum tube, a heat preservation layer wrapping the outer sides of the heating elements and a shell; the top explosion-proof cover covers the top of the heating assembly; the bottom explosion-proof cover covers the bottom of the heating assembly; and a plurality of heat dissipation holes are formed in the top explosion-proof cover and the bottom explosion-proof cover. The device disclosed by the invention has the advantages of good temperature-pressure cooperation performance, compact structure, high safety, low cost and the like.

One or more reactants are flowed into thermal contact with a heating element in a reactor for a first time period. During a first part of a heating cycle, the one or more reactants are provided with a first temperature by heating with the heating element, such that one or more thermochemical reactions is initiated. The one or more thermochemical reactions includes pyrolysis, thermolysis, synthesis, hydrogenation, dehydrogenation, hydrogenolysis, or any combination thereof. The first heating element operates by Joule heating and has a porous construction that allows gas to flow therethrough. During a second part of the heating cycle, the one or more reactants are provided with a second temperature less than the first temperature, for example, by de-energizing the heating element. A duration of the first time period is equal to or greater than a duration of the heating cycle, which is less than five seconds.

The invention discloses a method for treating coffee beans through combination of freezing and dipping and flavor coffee beans produced through the method. The method comprises the following steps: grading and screening coffee beans, mixing the coffee beans with exogenous additives (such as coconut milk, pure milk and the like) according to a ratio of (1-1.11): 1, freezing at-20 DEG C for 20-30 hours, unfreezing and soaking at 25 DEG C for 16 hours, then drying until the water content is 10-12%, and finally baking at 190-210 DEG C until the Eilkstrong value is 35. According to the working principle, the structure of coffee beans is destroyed through low temperature, exogenous additives enter the coffee beans, the content of flavor precursors is changed, the baking thermal chemical reaction is affected, and meanwhile the exogenous additives give unique fragrance. Coconut milk treatment is taken as an example, the content of sugar and protein can be increased, fragrance and sweetness can be improved, bitter and sour feeling can be reduced, and coffee with mellow and balanced coconut fragrance can be obtained. The method can effectively improve coffee quality and produce coffee beans with brand new flavor.

In accordance with the purpose(s) of the present disclosure, as embodied and broadly described herein, the disclosure, in one aspect, relates to methods, compositions, and systems for conducting efficient thermochemical reactions to produce a product, e.g., the production of ethylene and NH3 from CH4 / N2. The disclosed methods comprise a non-equilibrium, continuous synthesis method that uses microwave pulsed heating to drive a thermochemical process. The disclosed methods allow for switching between endothermic and exothermic reactions in one continuous process or within a single system. Also disclosed are compositions, i.e., catalysts, useful in the disclosed methods, and devices or systems for carrying out the disclosed methods.

The invention discloses a thermochemical mobile heat source vehicle system with feeding and discharging functions and a working method thereof, and the thermochemical mobile heat source vehicle system comprises a water-cooling screw conveyor, a sieve shaker, a crushing bin, a material forming system, a material conveyor, a reaction material bin and a tractor, a total discharge port of the thermochemical reactor is communicated with an inlet of the water-cooling screw conveyor, an outlet of the water-cooling screw conveyor is communicated with an inlet of the vibrating screening machine, a small particle outlet of the vibrating screening machine is communicated with an inlet of the crushing bin, an outlet of the crushing bin is communicated with the material forming system, and the material forming system is communicated with the material conveying system. A large particle outlet of the vibration screening machine is communicated with an inlet of the reaction material bin through the material conveying machine, an outlet of the reaction material bin is communicated with a main feeding port in the thermochemical reactor, and the system and the working method thereof can solve the problems that the gas-solid reaction cannot be carried out and the heat storage and release power is reduced due to the fact that the resistance of a bed layer is increased when a thermochemical heat storage material is broken.

The application discloses a landfill leachate treatment method based on coal water slurry gasification, which comprises the following steps: landfill leachate pretreatment, mixed coal powder preparation, composite coal water slurry preparation and gasification. The application has the beneficial effects that the viscosity, concentration, stability and heat value of the coal water slurry prepared under certain conditions reach the requirements of industrial coal water slurry. The composite coal water slurry is subjected to gasification reaction, the organic pollutants in the landfill leachate are subjected to thermochemical reaction, carbon and gas are formed and are high-valued, and the heavy metals in the landfill leachate are effectively solidified by chelation with the carbon. Compared with the original landfill leachate, the COD, ammonia nitrogen, total phosphorus, total nitrogen and turbidity in the obtained liquid phase product are greatly reduced, and the pH is reduced to below 9.0. The toxic and harmful components in the landfill leachate are stably and safely disposed, and a large amount of water resources is saved, and the obtained liquid phase product can be recycled to a coal water slurry preparation unit for secondary utilization.

The invention discloses a thermochemical reactor and an integrated thermochemical reaction system and method.The thermochemical reactor comprises a shell, a plurality of reaction modules are arranged in the shell, a plurality of material channels are formed in the reaction modules, and the material channels are filled with thermochemical materials; according to the system and the method, the requirements of flexible configuration of energy storage capacity and power can be met, and meanwhile, the heat transfer and exchange efficiency is relatively high.

The invention belongs to the technical field of thermochemical energy storage, and discloses a shell-and-tube thermochemical reactor and a thermochemical energy storage system.The shell-and-tube thermochemical reactor comprises a reactor shell and a reaction module arranged in the reactor shell; the reaction module comprises a plurality of hexagonal reaction units which are continuously arranged in a honeycomb shape; each hexagonal reaction unit comprises a hexagonal shell, a heat exchange tube, an electric heating body and a heat exchange fin which are coaxially arranged; the heat exchange tube is arranged in the center of the interior of the hexagonal shell, and the space between the heat exchange tube and the hexagonal shell is filled with thermochemical reactants. The electric heating body is arranged at the vertex of the hexagonal shell, and the heat exchange fins are radially distributed on the outer side of the heat exchange tube; according to the invention, the problem of non-uniform local heat and cold of the existing reactor is effectively solved, and the reaction uniformity and efficiency are greatly improved; meanwhile, the number and the arrangement mode of the reaction units can be adjusted according to actual requirements so as to adapt to different energy storage scales and scene requirements.