409 results about "Solid hydrogen" patented technology

The invention relates to the technical field of hydrogen preparation, and provides a hydrogen storage device based on a solid hydrogen storage material and a hydrogen production method thereof.The device comprises a fuel tank internally provided with a reaction cavity used for containing an aluminum hydride material and mixed powder; the heater is arranged on the outer side of the fuel tank; the first end of the water recycling assembly is communicated with the reaction cavity, and the second end of the water recycling assembly is communicated with the fuel cell system so as to recycle water generated by the fuel cell system to the reaction cavity; the first end of the hydrogen discharging assembly is communicated with the reaction cavity, and the second end is communicated with a fuel cell system. According to the hydrogen storage device provided by the invention, through the application of the high-specific-energy solid hydrogen storage material aluminum hydride which can be stored at normal pressure and release hydrogen at a relatively low temperature, the thermal decomposition process of the metal hydride in the fuel tank and the coupling reaction process of the metal hydride and water are optimized, and the hydrogen is produced by utilizing the hydrolysis reaction of the aluminum hydride thermal decomposition reactant simple substance aluminum and the water; meanwhile, thermal decomposition of aluminum hydride is promoted through heat released by hydrolysis reaction, hydrogen release is coupled, and effective utilization of heat is achieved.

The invention discloses a multi-hydrogen-storage-tank solid hydrogen storage system based on temperature control, and relates to the technical field of hydrogen energy storage, and the key points of the technical scheme are that the system comprises a plurality of hydrogen storage tanks, each hydrogen storage tank adopts different types of alloy hydrogen storage materials, each hydrogen storage tank is provided with an independent temperature control system, and the temperature is adjusted according to the types of the hydrogen storage materials; therefore, the hydrogen storage efficiency is optimized. The system can accelerate the hydrogen storage rate and improve the storage density through temperature control, the heat exchange device is arranged to improve the heat energy management efficiency, and accurate temperature control and cycle counting functions are achieved. The service life of the hydrogen storage material can be effectively prolonged, performance degradation is reduced, and the long-term stability of a hydrogen storage system is improved.

The utility model discloses a magnesium-based solid hydrogen storage device which comprises a tank body, an upper cover, a hydrogen pipe and a heat-conducting oil pipe, the tank body is of an upward opening structure and comprises an outer tank and an inner tank, an oil guide inlet is formed in the top of the outer tank, an oil guide outlet is formed in the bottom of the outer tank, an oil guide channel is formed between the outer tank and the inner tank, and a magnesium-based solid hydrogen storage material is filled in the inner tank; the upper cover covers the tank body; the hydrogen pipe penetrates through the upper cover and is communicated with the inner tank, and a plurality of air holes are formed in the hydrogen pipe; the heat conduction oil pipe penetrates through the upper cover and extends into the inner tank. An oil guide channel and a heat-conducting oil pipe are arranged, heat-conducting oil is continuously added in the hydrogen absorption and desorption process, the internal temperature of the tank body is regulated and controlled, the magnesium-based hydrogen storage material is in a high-temperature environment through internal and external combination, the temperature of the inner tank is kept stable, and the hydrogen absorption and desorption reaction rate is increased; and a plurality of air holes are formed in the surface of the hydrogen pipe, so that hydrogen fully reacts with the magnesium-based hydrogen storage material in each area of the inner tank body, and the hydrogen storage performance is enhanced.

The invention belongs to the technical field of hydrogen storage equipment, and relates to a solid hydrogen storage tank and a manufacturing method thereof, the solid hydrogen storage tank comprises a tank body and a core heat exchanger arranged in the tank body; the core heat exchanger is arranged in the tank body and consists of a plurality of H-shaped expanded surface finned tubes, each H-shaped expanded surface finned tube comprises a heat exchange tube and a plurality of radiating fins arranged on the heat exchange tube, gaps among the fins are used as spaces for placing hydrogen storage materials, and the fins are arranged in sequence; a plurality of screen H-shaped expansion surface finned tubes are stacked up and down and fixed by tube clamps, and a plurality of screens are connected into a whole and fixed on a bracket at the upper part of the tank body. According to the core heat exchanger, the H-shaped expanded surface finned tube is adopted as a basic unit of the core heat exchanger, and the heat and mass transfer efficiency between a hydrogen storage material and a heat exchange medium is effectively improved by increasing the number and the area of the radiating fins. And meanwhile, the sequential arrangement mode is adopted, so that the core heat exchanger is filled with the hydrogen storage material more uniformly, and the hydrogen storage density and the hydrogen charging and discharging rate are further improved.

The invention relates to the technical field of hydrogen storage performance calculation and evaluation, and discloses a method and a system for calculating and evaluating the hydrogen storage performance of a solid hydrogen storage material. Analyzing and designing the mechanical property, electron distribution, heat-conducting property, heat stability and the like of the material; the hydrogen adsorption performance of the newly designed hydrogen storage material is calculated by calculating the adsorption state and adsorption energy of hydrogen molecules on the hydrogen storage material and the hydrogen adsorption capacity of the material under different pressures and temperatures; and drawing a hydrogen adsorption dynamic curve of the solid hydrogen storage material so as to calculate and evaluate the hydrogen storage dynamic performance of the material. The system comprises a performance analysis module, a performance calculation module and a performance evaluation module. The research and development efficiency and hydrogen storage performance of the solid hydrogen storage material can be comprehensively improved in theory and practical application. Each step provides important theoretical support and data basis for solving technical challenges in different aspects.

The invention discloses TiO2-x (F) powder, a preparation method thereof and application of the TiO2-x (F) powder in strengthening the performance of a solid hydrogen storage material, and belongs to the technical field of hydrogen storage materials and preparation of the hydrogen storage materials. The problems that an existing magnesium-based solid hydrogen storage material is high in hydrogen desorption temperature, slow in low-temperature dynamics and the like are solved. According to the preparation method, the fluorinated transition metal Ti oxide additive doped with the oxygen vacancies is prepared, electrons of Mg are captured by utilizing the strong electronegativity of F atoms on the surfaces of transition metal Ti atoms, MgF2 active catalytic species are generated in the hydrogen absorption and desorption process, and the hydrogen storage performance of MgH2 is further improved. Meanwhile, the construction of oxygen vacancies on the surface of the transition metal Ti atom can provide active sites for Mg / MgH2 nucleation growth, can greatly accelerate the flow of electrons in the hydrogen absorption / desorption process, improves the thermal / dynamic performance, and realizes the reversible hydrogen absorption / desorption of the magnesium-based hydrogen storage material at low temperature.

The invention discloses a solid hydrogen storage system capacity state estimation method. The method comprises the following steps of: firstly, simplifying a high-dimensional numerical calculation model into a lumped parameter model according to a chemical chemistry kinetic equation of solid hydrogen storage / desorption, and then carrying out linearization processing to obtain a state space equation and a linearization model of a solid hydrogen storage system; then designing extended Kalman filtering for monitoring the state of the solid-state hydrogen storage system, estimating the state of the solid-state hydrogen storage system at the future moment by using an extended Kalman filtering algorithm, and accordingly outputting the state of the hydrogen content SOC of the solid-state hydrogen storage system; and finally, predicting and updating the state of the solid-state hydrogen storage system through loop iteration, and adjusting the SOC estimated value of the solid-state hydrogen storage system in real time. According to the method, the phenomenon of error accumulation in hydrogen flow integration can be avoided, the SOC estimation precision is improved, meanwhile, the hydrogen content state of the system is estimated in real time under the dynamic working condition, dynamic control over system operation is guided, and errors caused by measurement noise and model uncertainty are reduced.

The invention relates to the technical field of energy power, in particular to a solid hydrogen pool system and a hydrogen release control method. The system comprises a hydrogen storage module, a water supply module, a hydrogen conveying module and a temperature control module. The hydrogen storage module comprises a reaction tank and a plurality of solid hydrogen storage fuel units, the water supply module comprises a water storage tank and a water sprayer, the water sprayer is used for quantitatively spraying reaction water, the hydrogen conveying module comprises a buffer tank and is used for quantitatively storing released hydrogen, and the temperature control module comprises a cooling unit and a heating unit. The cooling unit is used for cooling a medium and circulating the medium into the reaction tank for heat exchange, and the heating unit is used for circulating a heat exchange medium to the water supply module. The reaction rate can be dynamically adjusted according to the requirements of the rear-end fuel cell system, and the hydrolysis reaction can be continuously carried out under the low-temperature condition, so that the requirements of the rear-end fuel cell system are reasonably controlled and matched.

The invention provides a hydrogen charging management method of a solid hydrogen storage device, and relates to the technical field of hydrogen storage, the method comprises the following steps: connecting a hydrogenation gun into a first gas inlet end of the solid hydrogen storage device, and charging hydrogen with a preset hydrogen flow into the solid hydrogen storage device; controlling the exhaust end of the solid hydrogen storage device to exhaust the hydrogen subjected to heat exchange; a circulating pump is started, hydrogen exhausted from the exhaust end is input into a cooling device through a circulating pipeline to be cooled, and the cooled hydrogen is filled into the solid hydrogen storage device through a second gas inlet end of the solid hydrogen storage device through the circulating pipeline; and when the solid hydrogen storage material in the solid hydrogen storage device reaches a hydrogen absorption saturation state, hydrogen charging is stopped. The solid hydrogen storage device can be filled with hydrogen of the preset hydrogen flow, heat generated by hydrogen absorption of the solid hydrogen storage material in the solid hydrogen storage device is brought out of the solid hydrogen storage device, the solid hydrogen storage device discharges a small amount of hydrogen after hydrogenation is completed, and safety is high.

The invention relates to the technical field of energy power, in particular to a fuel cell system based on a solid hydrogen pool and a hydrogen-electricity conversion efficiency determination method. The fuel cell system comprises a solid hydrogen pool module, a fuel cell module and a coupling module which are integrally assembled, the solid hydrogen pool module comprises a hydrolysis hydrogen releasing pool and a solid hydrogen storage component, the fuel cell module comprises an electrolytic tank and a proton exchange membrane, and the coupling module comprises a hydrogen conveying unit and a water circulation unit. The hydrogen conveying unit is used for conveying hydrogen released by the solid hydrogen storage component into the electrolytic tank for electrochemical reaction, and the water circulation unit is used for extracting an aqueous solution containing unelectrolyzed hydrogen in the electrolytic tank into the hydrolysis hydrogen release tank for hydrolysis hydrogen release reaction. The hydrogen element in the aqueous solution can be recycled for the second time in the hydrolysis hydrogen release tank and the electrolytic tank, so that the double hydrogen production effect is achieved, and the energy storage and hydrogen-electricity conversion efficiency is greatly improved.

The utility model discloses an inerting and discharging combined safety protection device for a solid hydrogen storage tank, and belongs to the technical field of hydrogen storage and supply. The device comprises a solid hydrogen storage tank main body, a pressure and temperature sensing module, an inert gas injection system, a flameless relief device and a hydrogen treatment unit, the pressure and temperature sensing module monitors parameters in the tank in real time, when the parameters exceed a preset threshold value, the inert gas injection system injects inert gas from the lower portion of the tank body at constant pressure, the air pressure is stabilized through flow control, and meanwhile hydrogen is pumped out of an opening in the upper portion of the tank body to the processing unit; and a discharge port is formed in the side surface of the tank body and is linked with the flameless discharge device. According to the device, through the design of inerting inhibition and safe release, the potential safety hazard of overtemperature and overpressure in the solid hydrogen storage process is solved, the stability and safety of a hydrogen storage system are improved, and the device is convenient to operate and adapts to transformation of an existing solid hydrogen storage tank.

The invention provides a solid hydrogen storage thermal management system and method, and relates to the technical field of thermal management, the system comprises a hydrogen charging and discharging module, a heating liquid storage module, a cooling liquid storage module, a loop switching module, a heat exchanger and a cooling module, the hydrogen charging and discharging module comprises a hydrogen storage unit, and the hydrogen storage unit is connected to a first control valve and a second control valve. The heating liquid storage module is composed of a heat liquid storage box and a heater and connected with the control valve. And the cooling liquid storage module comprises a cold liquid storage tank which is communicated with the control valve. The loop switching module utilizes the first control valve and the second control valve to switch heat exchange medium flow paths. The cooling module comprises a cooling unit. During hydrogen filling, the control valve is configured to form a first communication loop, and the heat exchange medium is cooled to the hydrogen filling temperature; and during hydrogen desorption, a second communication loop is formed, and the heat exchange medium is heated to the hydrogen desorption temperature. The temperature of the solid hydrogen storage system can be effectively controlled in the hydrogen charging and discharging process.

The invention relates to the technical field of hydrogen energy solid hydrogen storage, and discloses a metal hydride hydrogen storage tank and a circulating hydrogen charging and discharging method.The metal hydride hydrogen storage tank comprises a tank body, the top end of the tank body is communicated with a gas inlet pipe, and the bottom end of the gas inlet pipe extends into the tank body and is rotationally provided with a connecting pipe through a rotating connector; a plurality of circular heat dissipation fins are fixedly connected between the inner walls of the tank body, the bottom end of the connecting pipe penetrates through the heat dissipation fins to be rotationally connected with the bottom end of the tank body, and a plurality of air holes are formed in the surface of each heat dissipation fin; four telescopic rods are fixedly connected to the top wall of the interior of the tank body, the hydrogen storage tank drives the transmission assembly to drive the connecting pipe and the stirring plate to rotate through movement of the piston, metal hydride is prevented from caking, hydrogen is dispersed more evenly through inclined air outlet holes, and the hydrogen storage efficiency is improved; the circular heat dissipation fins are provided with air holes, so that heat dissipation is achieved, and circulation of hydrogen is not blocked.

The invention relates to the technical field of purification, and discloses a hydrogen purification method based on a magnesium-based solid hydrogen storage material, which comprises the following steps: S11, packaging the magnesium-based solid hydrogen storage material into a plurality of purification units, connecting the two purification units in parallel, and arranging a thermal interaction unit between the two parallel purification units to form a primary purification module; and S2, purification: introducing the low-purity hydrogen into the purification module, so that the low-purity hydrogen is respectively subjected to a hydrogen absorption reaction and a hydrogen desorption reaction for multiple times in the purification units connected in parallel, the low-purity hydrogen is purified, heat is supplied to the purification units which are subjected to the hydrogen desorption reaction through the heat interaction unit, and heat energy released by the hydrogen absorption reaction is stored. Based on the selective adsorption capacity of the solid hydrogen storage material to hydrogen, the solid hydrogen storage material is used for adsorbing hydrogen and discharging impurity gas, so that the purity of hydrogen is improved, and the heat interaction unit is used for storing heat energy released by a hydrogen absorption reaction and applying the heat energy to a hydrogen desorption reaction, so that the energy consumption in the purification process is reduced.

The invention aims to provide a solid hydrogen storage hydrogen closed cycle hydrogen source generator for an underwater vehicle, which belongs to the field of dehydrogenation devices and comprises a reactor, a pressure stabilizing common rail pipe, a hydrogen storage material delivery pump, a solid hydrogen storage material storage unit, a solid hydrogen storage material spraying device, a product collecting device and a hydrogen storage unit. The hydrogen storage material conveying pump is connected with the pressure stabilizing common rail pipe, the solid hydrogen storage material storage unit and the solid hydrogen storage material spraying device, the hydrogen storage unit is connected with the pressure stabilizing common rail pipe, and the reactor is connected with the hydrogen storage unit. The solid hydrogen storage material is used for releasing hydrogen, one part of hydrogen is conveyed to the fuel cell to react for power output of the underwater vehicle, the other part of circulating hydrogen assists the hydrogen storage material in injection, and an underwater closed circulation mode suitable for the underwater vehicle is achieved. The solid hydrogen storage material conveying module and the circulating hydrogen supply module are matched, and rapid mixing of the solid hydrogen storage material and hydrogen and large-flow injection of the solid hydrogen storage material are achieved.

The utility model discloses a solid state hydrogen storage device, relates to solid state hydrogen storage technical field, the solid state hydrogen storage device includes container, solid state hydrogen storage tank group and connecting structure, the solid state hydrogen storage tank group is installed in the container, the solid state hydrogen storage tank group includes a plurality of hydrogen storage tanks that are evenly distributed, the connecting structure is connected with the solid state hydrogen storage tank group, and the connecting structure is connected with the solid state hydrogen storage tank group. Each hydrogen storage tank comprises a tank body, hydrogen absorption metal particles, a thermal insulation material, an electromagnetic induction heating cable and a shielding layer; the connecting structure is fixedly connected to the end part of each hydrogen storage tank so as to charge or discharge hydrogen into or from the hydrogen storage tanks and detect the pressure and temperature of the hydrogen in real time; and the electromagnetic induction heating cable is electrified to generate an induced magnetic field which interacts with the hydrogen absorption metal particles and reacts with hydrogen to generate solid hydrogen for storage. The device generates an induced magnetic field through the electromagnetic induction heating cable to react with the hydrogen absorption metal particles. Therefore, the hydrogen absorption metal particles are heated, the packaging grids can be kept stable in the heating process, and safety accidents caused by overheating or overpressure are avoided.

The invention belongs to the technical field of hydrogen energy, and particularly relates to a solid hydrogen storage system with two charging and discharging ends and a working method.The solid hydrogen storage system comprises at least two independent solid hydrogen storage units, and each solid hydrogen storage unit independently communicates with an upstream hydrogen supply pipeline through a first valve set and independently communicates with a downstream hydrogen using pipeline through a second valve set; each solid hydrogen storage unit is selectively communicated with the thermal circulation loop or the cold circulation loop through a third valve group; the first valve group, the second valve group and the third valve group are controlled, so that when the upstream hydrogen supply pipeline has a hydrogen supply demand and the downstream hydrogen use pipeline has a hydrogen use demand, the first solid hydrogen storage unit is configured to be in a hydrogen charging mode, and meanwhile, the second solid hydrogen storage unit is configured to be in a hydrogen discharging mode; the solid hydrogen storage unit in the hydrogen charging mode is communicated with the upstream hydrogen supply pipeline and the cold circulation loop for charging hydrogen, and the solid hydrogen storage unit in the hydrogen discharging mode is communicated with the downstream hydrogen supply pipeline and the hot circulation loop for discharging hydrogen.

The invention relates to the technical field of hydrogen storage, and discloses a solid hydrogen storage reactor and a hydrogen storage / desorption method thereof. The solid hydrogen storage reactor comprises a heat-conducting fluid substrate (1) and a hydrogen storage material substrate (2) which are sequentially stacked, wherein the hydrogen storage material substrate (2) is filled with a solid hydrogen storage composite material; wherein a first flow channel is engraved on the heat-conducting fluid substrate (1) and is used for allowing heat-conducting fluid to pass through; a second flow channel is engraved on the hydrogen storage material substrate (2) and used for hydrogen to pass through, and the first flow channel is not communicated with the second flow channel. The solid hydrogen storage reactor has the characteristic of high heat transfer efficiency, and is beneficial to improving the hydrogen absorption rate.

The invention relates to a metal hydride solid hydrogen storage device, in particular to a detachable metal hydride solid hydrogen storage device which comprises a shell, a flange and a blind flange, a hydrogen conveying pipe and the flange are welded to the shell, the hydrogen conveying pipe serves as a hydrogen flow channel, a U-shaped heat exchange pipe and a temperature measuring protective sleeve are welded to the blind flange, and the U-shaped heat exchange pipe serves as the temperature measuring protective sleeve. Hydrogen is absorbed by introducing a hydrogen cylinder into a pipeline system through a pressure reducing valve and then entering a metal hydride solid hydrogen storage device through a hydrogen conveying pipe, so that a first-stage hydrogen absorption process can be completed; a reversible chemical reaction in the hydrogen absorption process is carried out in the forward direction to generate a large amount of heat, if the heat is not discharged in time, the further hydrogen absorption process of the hydrogen storage material can be influenced, at the moment, a certain flow of cooling water is introduced into the upper U-shaped heat exchange pipe by controlling a water path, and the heat generated in the hydrogen storage material is conducted to the wall of the heat exchange pipe through the aluminum annular fins on the heat exchange pipe; and the water is timely taken away by cooling water through convective heat exchange.

The invention discloses a hydrogen charging system and method for a magnesium-based solid hydrogen storage reaction kettle. A hydrogen storage tank is placed in each placement position in an inner cavity of the reaction kettle, and a heat exchange coil pipe is arranged outside each placement position; the hydrogen charging system comprises a hydrogen charging part, a temperature control part and a safety protection part; the hydrogen filling part comprises a hydrogen filling main pipeline; a hydrogen flow controller and a hydrogen heat exchanger are arranged on the hydrogen filling main pipeline; the temperature control part comprises an external heat-conducting oil circulating system, the external heat-conducting oil circulating system comprises a heat-conducting oil tank, a flow bypass pipeline is arranged between the oil inlet pipeline and the oil return pipeline, and a heat-conducting oil shunting automatic switch valve is arranged on the flow bypass pipeline; the safety protection part comprises a safety valve arranged on the reaction kettle, the safety valve is externally connected with an emptying pipeline, a pressure relief bypass pipeline is arranged between the emptying pipeline and the hydrogen filling main pipeline, and an automatic opening and closing pressure relief valve is arranged on the pressure relief bypass pipeline. The system has the advantages that the hydrogen storage tanks in the reaction kettle can be quickly and efficiently filled with hydrogen, and the safety of the system is ensured.

The invention relates to the technical field of vehicle power systems, in particular to a solid hydrogen storage device containing a low-temperature cold-start hydrogen storage cylinder and a fuel cell collaborative power assembly, and the device comprises a heat flow modulation module, a balance driving module, a release coordination module, a power matching module and a power assembly control module. In the hydrogen storage process, through real-time linkage judgment of the interface temperature difference and the heat flux change, directional feedback of energy in different areas is achieved, the stable hydrogen release condition of the hydrogen storage material is maintained, differentiated distribution is conducted on heating power according to the heat flux density deviation, invalid energy consumption and local energy accumulation are avoided, and the energy storage efficiency is improved. Dynamic balance is constructed between the hydrogen release rate and the phase change medium energy absorption rate, the hydrogen supply process is corrected through filtering estimation, the release flow is more stable and controllable, finally, the hydrogen supply stability and the load requirement are combined in the power output link, dynamic matching of the galvanic pile power and the external working condition is achieved, and the energy efficiency is improved. And the response flexibility and the energy conversion efficiency of the power system are improved.

The invention relates to the technical field of hydrogen storage testing, and discloses a performance testing platform and method for a solid hydrogen energy storage device. The test platform comprises a gas path system, a heat exchange system, a data acquisition module and a controller. And the gas path system is used for charging or discharging hydrogen from a hydrogen port of the solid hydrogen energy storage device. The heat exchange system is used for providing heat transfer during a hydrogen charging period and heat compensation during a hydrogen discharging period for the solid hydrogen energy storage device; the heat exchange system comprises a buffer tank, an inlet of the buffer tank is used for introducing a high-temperature heat exchange medium and a low-temperature heat exchange medium for premixing, and an outlet of the buffer tank is connected into a heat exchange medium inlet of a heat exchange structure in the solid hydrogen energy storage device. The data acquisition module is used for acquiring the pressure, temperature and hydrogen flow at the hydrogen port and the temperatures of the inlet and the outlet of the heat exchange structure. And the controller is used for calculating the energy consumption of the solid hydrogen energy storage device for storing or releasing unit mass of hydrogen according to the data. According to the invention, the energy consumption required by hydrogen charging and discharging of the hydrogen energy storage device can be accurately calculated.

The utility model discloses a solid hydrogen storage device suitable for quick filling, which comprises a hydrogen storage tank and an end cover, the end cover is provided with a hydrogen inlet / outlet, the hydrogen inlet / outlet is connected with a bottle valve, the bottle valve comprises a valve body, a gas outlet and a manual knob at the top of the valve body, the bottom of the hydrogen storage tank is provided with an integrated heating and radiating module, and the hydrogen storage tank is provided with a controller. A gas outlet of the bottle valve is connected with an electromagnetic valve, the electromagnetic valve is connected with a quick connector, the quick connector is connected to a hydrogen inlet of the hydrogen fuel cell through a hydrogen pipeline, the bottle valve is further provided with a temperature and pressure integrated sensor and a quick connector used for filling hydrogen, and the temperature and pressure integrated sensor and the integrated heating and heat dissipation module are electrically connected with a controller. The hydrogen storage device is simple and compact in structure, the operation process of connecting a hydrogen pipeline during hydrogen filling is simplified by adopting the quick connector, and the hydrogen storage tank is heated or cooled by the integrated heating and cooling module at the bottom of the hydrogen storage tank, so that the hydrogen release or filling efficiency of the hydrogen storage device is greatly improved.

The invention belongs to the technical field of hydrogen storage, and particularly relates to a vehicle-mounted hydrogen storage device and a hydrogen absorption and desorption method thereof. A vehicle-mounted hydrogen storage device comprises a hydrogen storage reactor arranged in a vehicle-mounted high-pressure container and filled with vanadium-based hydrogen storage alloy; the refrigerating system is used for providing a first fluid medium for the solid hydrogen storage reactor in a hydrogen absorption process so as to cool the hydrogen storage reactor to a preset hydrogen absorption temperature; the heating system is connected with a waste heat source of a vehicle-mounted engine and used for providing a second fluid medium for the hydrogen storage reactor in the hydrogen desorption process so as to heat the hydrogen storage reactor to the preset hydrogen desorption temperature; and the fluid conveying loop comprises a pipeline and a valve and is used for selectively communicating the refrigerating system or the heating system with the hydrogen storage reactor so as to convey the first fluid medium or the second fluid medium.

The invention provides sustained-release solid hydrogen peroxide as well as a preparation method and application thereof, and belongs to the technical field of hydrogen peroxide preparation, the sustained-release solid hydrogen peroxide comprises a hydrogen peroxide solution, a stabilizer, an excipient and a sustained-release agent, wherein the slow release agent is a compound of ethyl cellulose and chitosan, and the weight ratio of ethyl cellulose to chitosan is (1-2): 1; the addition amount of the slow-release agent is 0.5%-10% of the total mass of the slow-release solid hydrogen peroxide; according to the invention, ethyl cellulose (hydrophobic barrier) and chitosan (pH response degradation) are combined for use in the sustained-release agent, so that overhigh local concentration caused by concentrated release of hydrogen peroxide is avoided, and the explosion risk is reduced; the preparation method provided by the invention is a crystallization-drying integrated process, the production period can be shortened to 4 hours, while the traditional process needs more than 8 hours, and the energy consumption is reduced by 40%.

The heat exchange device for the solid hydrogen storage device comprises a supporting plate, the top end of the supporting plate is fixedly connected with a protective shell, the right side of the protective shell is fixedly connected with a first connecting plate, and the inner wall of the first connecting plate is fixedly connected with a first fixing plate; a medium inlet is movably formed in the middle of the first fixing plate, and the right end of the medium inlet is fixedly connected with a filtering mechanism. The filter screen is additionally arranged on the medium inlet, the scraper is mounted on the surface of the filter screen, the sealing gasket and the second mounting plate are sequentially mounted on the first mounting plate during use, the first mounting plate and the second mounting plate are fixed by the fastening screws, and a cooling medium is introduced into the guide pipe on the second mounting plate. The cooling medium passes through the filter screen, impurities in the cooling medium are blocked on the filter screen, the rotating motor is started, the rotating shaft drives the scraper to rotate, foreign matter blocked on the filter screen is scraped, normal work of the filter screen is guaranteed, and the risk that the medium guide pipe is blocked is reduced.

The invention relates to a solid hydrogen storage bottle with an internal heat exchange coupling heat pipe, which comprises a bottle body, a heat conduction part and a gas guide part, the heat conduction part is movably arranged in the bottle body, and a material storage cavity is formed in the bottle body; the air guide part keeps the material storage cavity communicated with the outside of the bottle body in the moving process; wherein the gas guide part synchronously moves along with the heat conduction part, and the heat conduction part keeps the hydrogen absorption material deviating from the gas guide part in the static process. The heat conduction part is movably arranged in the bottle body, so that when the heat conduction part moves, the hydrogen absorption material is thrown away from the gas guide part, the material cannot escape outwards, smooth flowing of hydrogen is kept, the number of the storage cavities is not limited by the structure, the multiple storage cavities can be arranged, the hydrogen absorption material is fully separated, and the hydrogen absorption effect is improved. And the whole structure keeps a good heat conduction effect on the hydrogen absorption material, and meanwhile, sufficient flow of hydrogen between the inside and the outside is ensured, so that the hydrogen absorption and hydrogen desorption efficiency is effectively ensured.

The invention discloses a high-temperature solid hydrogen storage and SOEC coupling hydrogen production and storage integrated system and method. The system comprises a water supply device, and the end of the water supply device is connected with a suction device; one end of the recovery device is connected with the suction device, and the other end is connected with a reaction device; the SOEC electrolytic reactor is connected with the reaction device, the SOEC electrolytic reactor comprises an anode end and a cathode end, and the anode end is connected with the recovery device; one end of the air delivery device is mounted between the reaction device and the SOEC electrolytic reactor, and the other end of the air delivery device is connected with a hydrogen high-temperature heat recovery device; the first end of the hydrogen medium-temperature heat recoverer is connected with the hydrogen high-temperature heat recovery device, the second end of the hydrogen medium-temperature heat recoverer is connected with the reaction device, the third end of the hydrogen medium-temperature heat recoverer is connected with a condenser, the fourth end of the hydrogen medium-temperature heat recoverer is connected with a dryer, and the condenser is connected with the dryer. Medium-temperature and high-temperature heat energy released in the hydrogen storage process of the high-temperature metal hydride is recycled through the heat recycling device and used for producing high-temperature superheated steam needed by SOEC electrolysis, and the good heat and mass synergistic effect is achieved on the whole.

The invention discloses a magnesium-based solid hydrogen storage tank integrated with a resistance heating and electromagnetic coupling magnetic field structure, which comprises a tank body and a control cabinet integrated on the outer side wall of the tank body, a plurality of electrode plates are arranged in the tank body, and the electrode plates are electrically connected with a power supply cabinet on the side wall of the tank body through tabs on the electrode plates. The inner space of the tank body is divided into a plurality of hydrogen storage spaces by the plurality of electrode plates, magnesium-based solid hydrogen storage materials containing magnetic alloy metal and carbon materials are added into the hydrogen storage spaces through material adding ports formed in the outer side wall of the tank body, a temperature sensor is arranged in each hydrogen storage space, and a pressure sensor is arranged at the top of the tank body; a hydrogen inlet / outlet is formed in the top end of the tank body; a communicating hole for communicating two adjacent hydrogen storage spaces is formed in the center of the electrode plate. Through the synergistic effect of an electric field and a magnetic field, the thermal management performance of the magnesium-based hydrogen storage material is effectively improved, the hydrogen desorption cold start time is shortened, the thermal effect influence in the hydrogen charging and desorption process is reduced, stress concentration caused by volume expansion is relieved, and the hydrogen storage and release performance of the magnesium-based material is improved.

The invention discloses a multipurpose solid hydrogen storage device which comprises a hydrogen storage device body, the hydrogen storage device body comprises a hydrogen storage profile, an upper cover plate and a lower cover plate, the upper cover plate is arranged at the upper end of the hydrogen storage profile, the lower cover plate is arranged at the lower end of the hydrogen storage profile, and a gas chamber and a heat conduction water chamber are arranged in the hydrogen storage profile; the upper cover plate is provided with an air valve communicated with the air cavity, a water inlet valve and a water outlet valve, wherein the water inlet valve and the water outlet valve are communicated with the heat conduction water cavity. According to the multipurpose solid hydrogen storage device provided by the invention, a solid hydrogen storage material can release a large amount of heat when sucking hydrogen, so that a water inlet valve and a water outlet valve are further arranged on an upper cover plate and are communicated with a heat conduction water cavity, cold water is injected into the heat conduction water cavity through the water inlet valve and the water outlet valve, heat is taken away through the cold water, and the heat conduction efficiency is improved. Therefore, the solid hydrogen storage material can continuously and efficiently absorb hydrogen for storage, the hydrogen storage capacity of the hydrogen storage device main body is greatly increased, and the hydrogen storage device main body is convenient to move and use.