137 results about "Solid hydrogen" patented technology

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 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 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 discloses a hydrogen slow-release composite material based on moisture self-regulation and a hydrogen slow-release device and method.The composite material comprises, by mass, 15-25 wt% of a hydrogen production component, and the hydrogen production component comprises a solid hydrogen production material and is used for reacting with water to release hydrogen; the water absorption component is used for absorbing and retaining water; 5-25 wt% of a water-consuming component for reacting with water to consume water; wherein the total solid water amount corresponding to the water absorption component and the water consumption component is greater than the theoretical water amount required by complete reaction of the hydrogen production component; the raw materials are mixed, compacted and molded to obtain the hydrogen slow-release composite material. When external water supply fluctuates, the material system can spontaneously adjust moisture entering a reaction environment, so that the effective water consumption participating in the hydrolysis reaction of magnesium hydride is more stable, the hydrogen production process is easier to maintain a slow and stable release state, and the dependence on high-precision external water supply equipment and complex control links is reduced.

The utility model discloses a solid hydrogen storage device, including the shell body, the upper end fixed mounting of shell body has the vacuumizing pipe, the inside of shell body is provided with the inner bag, the upper end fixed mounting of inner bag has the hydrogen injection pipe, the upper end fixed mounting of shell body has the sealing cylinder, the hydrogen injection pipe is located in the sealing cylinder, and with sealed sliding connection thereof, the inside of inner bag is equal interval and is provided with a plurality of mounting grooves, and the inside of each mounting groove is provided with hydrogen storage alloy, and a plurality of mounting grooves are connected through the intercommunication cavity intercommunication. The utility model discloses the setting of up and down buffer structure can effectively absorb and disperse energy when the device is impacted by external force, vibrates or jolts in the transportation process, alleviates the shaking and stress of inner bag, reduces the risk of damaging inner bag due to collision, and cooperates with air bag protection measures, ensures the safe use of air bag.

The utility model discloses an air tightness detection device for a solid hydrogen storage cylinder, and relates to the technical field of gas cylinder detection. The airtightness detection device for the solid hydrogen storage bottle comprises a rack used for providing a stable supporting structure; the water storage tank is arranged at the front end of the rack and is used for storing water required in the detection process and providing a liquid environment for air tightness detection; the detection table is mounted on the water storage tank in a sliding manner and is used for placing a hydrogen storage bottle to be detected; the inflating and exhausting assembly is mounted on the rack and used for inflating or exhausting the hydrogen storage bottle; the control assembly is mounted on the inspection table and used for controlling a bottle opening valve of the hydrogen storage bottle; through the arrangement of the air charging and discharging assembly and the control assembly, an operator can carry the hydrogen storage bottle in an uninflated state to the detection table or carry the hydrogen storage bottle down from the detection table, the personal injury risk caused by unforeseen circumstances such as leakage and explosion of the hydrogen storage bottle in the carrying process of the operator is greatly reduced, meanwhile, the carrying process is simplified, and the operation convenience is improved.

The invention belongs to the technical field of hydrogen storage, and particularly relates to a solid hydrogen storage tank and an explosion suppression control method thereof. The solid hydrogen storage tank comprises a tank body, at least one monitoring module, at least one explosion suppression device and a control module, the tank body comprises a tank shell and an airflow speed limiter, an inner cavity is formed in the tank shell, and the airflow speed limiter is arranged in the tank shell. The monitoring module is arranged on the peripheral wall of the tank shell and used for collecting pressure and temperature in the inner cavity. And the at least one explosion suppression device is arranged on the peripheral wall of the tank shell and can spray an explosion suppression material towards the inner cavity. The control module is connected with the monitoring module and the explosion suppression device and controls the explosion suppression device according to monitoring information sent by the monitoring module. Wherein the airflow speed limiter is connected with a hydrogen output pipeline and is used for adjusting the flow of hydrogen entering the hydrogen output pipeline according to the pressure in the inner cavity. According to the solid-state hydrogen storage tank provided by the invention, the safety level of the solid-state hydrogen storage tank is greatly improved in a mode of combining active safety defense and passive safety adjustment.

The invention discloses an integrated solid hydrogen storage and supply device and a using method thereof, and relates to the technical field of solid hydrogen storage, the integrated solid hydrogen storage and supply device comprises a heat exchange box body, the heat exchange box body is provided with a cavity used for containing a cooling medium, and the cavity is internally provided with a heat exchange cavity; a water inlet and a water outlet which are communicated to the cavity are formed in the side wall of the heat exchange box body; the cavity has a length direction, a width direction and a height direction which are mutually vertical in pairs; the hydrogen storage pipes are fixedly arranged in the cavity, the hydrogen storage pipes are distributed in multiple rows in the width direction and the height direction of the cavity, and the hydrogen storage pipes in the adjacent rows in at least one direction are arranged in a staggered mode. The hydrogen storage pipes are arranged in a staggered mode, so that the advantages of small size and large flow of an integrated device are better exerted; hydrogen is collected in a limited space to achieve certain hydrogen absorption and desorption performance, and large-scale integration and large-flow hydrogen supply can be achieved.

This utility model relates to the field of hydrogen production technology through hydrolysis of hydrogen storage materials, and more particularly to a reaction device for hydrogen production through hydrolysis of magnesium-based solid hydrogen storage materials. The device includes a reaction vessel and support rods. A feeding assembly for raw material feeding is installed on the right side of the reaction vessel. An auxiliary assembly is provided between the feeding assembly and the reaction vessel. Three sets of support rods are provided at the bottom of the reaction vessel. The feeding assembly includes a feeding hopper, which is installed on the right side wall of the reaction vessel. A rotating rod is rotatably connected inside the feeding hopper, and stirring and crushing blades are provided on the outside of the rotating rod. This utility model, on the one hand, breaks up lumpy or agglomerated magnesium-based solid hydrogen storage materials into smaller particles, increasing their contact area with water; on the other hand, it ensures thorough mixing of water and magnesium-based solid hydrogen storage materials, accelerating the hydrolysis reaction. By reducing the particle size of the magnesium-based solid hydrogen storage materials, the contact area between the material and water is greatly increased, allowing the hydrolysis reaction to proceed more fully and improving the hydrogen generation rate and yield.

The invention relates to the technical field of solid hydrogen storage, in particular to a composite solid hydrogen storage tank capable of absorbing and desorbing hydrogen simultaneously. Comprising an external tank body and an internal tank body, an external hydrogen inlet is formed in one side of the bottom of the external tank body, an external hydrogen outlet is formed in one side of the top of the external tank body, and an external heating pipe is welded to the outer side of the external tank body and connected with an external heat source inlet and an external heat source outlet; an internal hydrogen inlet is formed in the bottom of the internal tank body, an internal hydrogen outlet is formed in the top of the internal tank body, an internal heating pipe is arranged on the internal tank body, the internal heating pipe is connected with an internal heat source inlet and an internal heat source outlet, external hydrogen storage alloy is arranged between the external tank body and the internal tank body, and internal hydrogen storage alloy is arranged in the internal tank body. The heat of the external hydrogen storage alloy and the heat of the internal hydrogen storage alloy can be conducted mutually, redundant heat in the hydrogen absorption process is fully utilized, the energy consumption of the whole system is reduced, and the hydrogen absorption and desorption functions of one hydrogen storage tank can be achieved through the principles of hydrogen absorption and heat release and hydrogen desorption and heat absorption.

The invention discloses a hexagonal scandium hydrogen compound and a preparation method thereof, and the preparation method comprises the following steps: taking a borane ammine complex as a solid hydrogen source, tabletting the borane ammine complex and elemental scandium through a mold, and stacking according to'hydrogen source-scandium-hydrogen source '; loading the assembly into a CVD diamond single crystal tube with holes, and carrying out secondary wrapping with NaCl to form a sealed reaction unit; carrying out segmented pressurization / depressurization in a cubic press, electrifying and segmented heating under the condition of 800-1200 DEG C, and carrying out pressure maintaining and cooling to complete synthesis; according to the method, local high hydrogen partial pressure is established under the action of moderate high pressure and double-layer sealing, external introduction of high-pressure hydrogen is avoided, and the equipment complexity and the safety risk are reduced; the product prepared by the invention is hexagonal-phase ScH3, can stably exist at normal temperature and normal pressure, and is different from cubic-phase ScH3 which can only be synthesized under an extreme high-pressure condition and cannot be kept stable after pressure relief, XRD and structure refinement are consistent with the standard, and the process can be repeated and amplified.

The invention relates to the technical field of solid hydrogen storage, in particular to a method and system for judging the hardening degree of a pulverized solid hydrogen storage alloy material. The method comprises the following steps of: observing a morphology picture of the lower part of the device in a cyclic hydrogen charging and discharging experiment reaction process, simultaneously detecting strain at a connecting line of centers of two integral flanges in a symmetrical first shooting unit, and finding that when a newly added microcrack appears, a corresponding strain sudden increase point 1; when the newly added microcracks are further thickened, a strain sudden increase point 2 is formed; when the cracks are completely closed after the primary circulating hydrogen charging and discharging experiment, the particles are further hardened, and at the moment, the corresponding strain sudden increase point 3 is obtained; therefore, an obvious corresponding relation between fracture evolution and strain growth can be found, and the strain accumulation condition of the reaction bed can be accurately evaluated by monitoring fracture change.

This invention discloses a method for measuring the remaining hydrogen content in solid-state hydrogen storage, belonging to the field of solid-state hydrogen storage technology. The method includes calculating a first hydrogen consumption based on the specific power and voltage of the fuel cell stack; calculating a second hydrogen consumption based on the diameter and duty cycle of the exhaust valve, as well as pre-acquired ambient temperature and pressure; and finally calculating a first remaining hydrogen content based on the total hydrogen weight, the first hydrogen consumption, and the second hydrogen consumption. This invention calculates the hydrogen consumption at the hydrogen tail exhaust more accurately by using the parameters of the exhaust valve and environmental parameters, thereby obtaining a more accurate first remaining hydrogen content and achieving more precise remaining hydrogen content calibration. Furthermore, this invention obtains the second remaining hydrogen content based on the hydrogen pressure value and the pre-acquired hydrogen storage mass density of the hydrogen storage module, and uses the second remaining hydrogen content to calibrate the first remaining hydrogen content, thereby further improving the accuracy of remaining hydrogen content calibration.

The utility model relates to a solid hydrogen storage container, which comprises a cylinder body and end sockets fixedly welded with an opening of the cylinder body, baffle plates fixed with the end sockets are arranged in the cylinder body, and a water inlet pipe, a water outlet pipe and a charging pipe which are communicated with the inside of the cylinder body are fixedly connected on the outer side wall of one end socket. A coil pipe communicated with the water inlet pipe and the water outlet pipe is arranged on the baffle plate in a penetrating mode, and solid hydrogen storage assemblies are arranged on the inner side wall of the barrel and the inner side wall of the end socket. The hydrogen storage device has the beneficial effect that a worker can conveniently store hydrogen.

The utility model provides a hydrogen storage device. The hydrogen storage device comprises a hydrogen storage bottle, a sliding assembly, a heating belt and a control module. The hydrogen storage bottle comprises a bottle body and a hydrogen release pipe, and a guide rail is arranged on the outer side wall of the bottle body; the sliding assembly is movably arranged on the guide rail and used for moving in the length direction of the bottle body. The heating belt is arranged outside the bottle body in a surrounding manner, is connected with the sliding assembly and is used for heating the bottle body; the control module is used for controlling the position of the sliding assembly and the temperature of the heating belt. And under the action of the control module, the position of the sliding assembly and the temperature of the heating belt are controlled. Therefore, heat waste of the large-area heating belt in the heating process is avoided, and the power consumption cost of the heating belt is reduced; and hydrogen can be prevented from being condensed or forming solid hydrogen, and the hydrogen storage capacity of the hydrogen storage tank and normal operation of equipment are ensured.

The embodiment of the present application provides a hydrogen leakage detection system for a solid hydrogen storage device, which comprises: a sampling unit, the sampling unit is used for being communicated with a water cooling pipeline of the solid hydrogen storage device; a degassing unit, the degassing unit is provided with a water-gas separation module, an inlet of the water-gas separation module is communicated with the sampling unit; a thermal conductivity detection unit, the thermal conductivity detection unit is provided with a thermal conductivity cell and a detector, a measuring arm end of the thermal conductivity cell is communicated with a gas outlet of the water-gas separation module, a reference arm end of the thermal conductivity cell is communicated with a hydrogen source, and the detector is used for detecting a hydrogen concentration of hydrogen separated by the degassing unit. The hydrogen leakage detection system improves the technical problem that the hydrogen leakage detection method in the prior art has high requirements for personnel and equipment and poor timeliness.

The application relates to the technical field of liquid hydrogen application, and discloses a liquid hydrogen storage container pressurizing system, which comprises a hydrogen storage container, wherein the hydrogen storage container comprises an inner container, a safety valve, a pressure transmitter, a high-vacuum heat insulation layer, a pressurizing heat exchange pipe and a shell; the high-vacuum heat insulation layer is arranged outside the inner container; the pressurizing heat exchange pipe is arranged outside the high-vacuum heat insulation layer; and the shell is arranged outside the pressurizing heat exchange pipe; a hydrogen supply system is connected with a liquid hydrogen area of the liquid hydrogen container through an inlet end of the hydrogen supply system. The application can efficiently utilize the existing cold and heat energy in the original hydrogen supply system, realizes pump-free flow of the pressurizing system through the characteristics of solid hydrogen storage alloy, reduces the cost, avoids hydrogen leakage, and solves the problems that the liquid hydrogen storage and supply system cannot be pressurized or is pressurized slowly at low ambient temperature and in the low liquid level stage of the hydrogen storage container.

The application relates to the technical field of hydrogen storage performance calculation and evaluation, and discloses a solid hydrogen storage material hydrogen storage performance calculation and evaluation method and system, which comprises the following steps: using a functional density theory and a molecular dynamics method, constructing a material microcosmic model, and analyzing and designing the mechanical properties, electronic distribution, heat conduction performance and thermal stability of the material itself; calculating the adsorption state and adsorption energy of hydrogen molecules on the hydrogen storage material, and the hydrogen adsorption amount of the material under different pressures and temperatures, so as to calculate the hydrogen adsorption performance of the newly designed hydrogen storage material; and drawing a hydrogen adsorption kinetics curve of the solid hydrogen storage material, so as to calculate and evaluate the hydrogen storage kinetics performance of the material. The system comprises a performance analysis module, a performance calculation module and a performance evaluation module. The application can comprehensively improve the research and development efficiency and hydrogen storage performance of the solid hydrogen storage material in theory and actual application. Each step provides important theoretical support and data basis when solving different technical challenges.

This invention relates to the field of solid-state hydrogen storage material testing technology, and discloses a multi-parameter comprehensive testing system for magnesium-based solid-state hydrogen storage materials. The system includes a sample feature extraction module, an in-situ data injection module, a dynamic test field module, a cross-domain mapping training module, and an instruction parsing and reporting module. The system applies multi-physical field composite excitations such as temperature, pressure, and stress to the material sample and simultaneously acquires multi-dimensional response signals; it generates a real-time environmental perturbation spectrum based on the signal sequence, uses its deviation from the standard model to drive adversarial training, dynamically generates test field control commands and material state evolution commands, and finally outputs a comprehensive test report. This system can realistically simulate multi-field coupled environments under complex working conditions, achieving adaptive optimization of test conditions and high-precision dynamic analysis of material performance evolution.

The application discloses a hydrogen release device and method for sealed chain conveying hydrolysis hydrogen storage material, and belongs to the technical field of solid hydrogen storage material. The device comprises a combined chain conveying system and a water-sealed reaction system. The water-sealed reaction system comprises a water tank and a reaction gas phase cavity, and is used for hydrogen production reaction of solid hydrogen storage material to release hydrogen. The combined chain conveying system comprises a combined chain, a driving sprocket and a driven sprocket. The solid hydrogen storage material is arranged on the combined chain. The driving sprocket is arranged on the shaft of a driving motor. Multiple sets of driven sprockets are arranged at the bottom of the reaction gas phase cavity and the periphery of the water tank. The combined chain forms a loop around the water-sealed reaction system through the driving sprocket and the driven sprocket, is used for continuous feeding of the solid hydrogen storage material, and realizes continuous and automatic operation of the hydrogen production reaction. The application solves the problem that the hydrolysis solid hydrogen storage material is difficult to be applied in batches. Through a comprehensive technical scheme, balance is realized in aspects of feeding, reaction, gas supply, heat dissipation and waste discharge.

A solid hydrogen storage and transportation container and a solid hydrogen storage and transportation system belong to the field of hydrogen storage and transportation. The solid hydrogen storage and transportation container comprises: a sealing housing, which is provided with a cavity inside, one end closed, and the other end provided with a detachable first or second type end cover; wherein the first type end cover is used for charging and releasing hydrogen and comprises a filter screen; the second-type end cover is used for transportation and comprises an air inlet and outlet connector; the N gas guide cylinders are arranged in the cavity of the sealed shell, each gas guide cylinder is cylindrical, gas inlet and outlet holes are distributed in the side face of each gas guide cylinder, dust removal buffer nets are installed at the front end and the rear end of each gas guide cylinder, and hydrogen storage materials and buffer materials are filled in the gas guide cylinders at intervals; wherein N is a natural number. According to the solid hydrogen storage and transportation container, the loss of a hydrogen storage medium can be reduced through the detachable end cover adapting to the scene and the gas guide cylinder with the dust removal buffer net, the hydrogen charging and releasing speed is increased, and safe transportation is facilitated.

The present application relates to hydrogen energy storage technology field, especially to a kind of multi-bottle group formula solid hydrogen storage system, including body, body is composed of upper and lower two parts, the circumference of body upper part is equipped with fixed cylinder and moving cylinder, the circumference of fixed cylinder and moving cylinder is equipped with multiple identical clamping mechanisms, clamping mechanism includes rotating plate, connecting column, connecting plate and arc plate, moving cylinder is located in the upper of fixed cylinder, the circumference of fixed cylinder is fixedly connected with body, the circumference of moving cylinder is slidably connected with body, the circumference of fixed cylinder and moving cylinder is fixedly connected with multiple evenly distributed mounting plates, every two mounting plates adjacent one end is rotatably connected with rotating plate, moving cylinder is driven by threaded rod driven by rotating rod, linkage rotating plate and connecting plate make arc plate clamping bottle body, silica gel pad in arc plate inner ring can adapt to the slight deviation of different size bottle body, while telescopic structure adapts to vehicle and other diversification scene, meet the demand of flexible deployment and space efficient use.

The invention discloses a high-thermal-conductivity solid hydrogen storage tank, relates to the technical field of hydrogen storage equipment, and aims to solve the technical problems that an existing solid hydrogen storage tank is low in thermal conductivity, slow in hydrogen absorption and desorption rate and insufficient in structural stability. The hydrogen storage tank comprises a tank body, a high-thermal-conductivity supporting assembly, hydrogen storage composite powder, a filter element and a bottleneck valve, the high-heat-conduction supporting assembly is of a multidirectional branch elastic three-dimensional structure, is made of a material with the heat conductivity coefficient being larger than or equal to 80 W / (mK) and abuts against the inner wall of the tank body through elastic deformation, and the contact area proportion is not smaller than 10%; the hydrogen storage composite powder is formed by mixing hydrogen storage alloy powder with auxiliary heat conduction materials such as graphite powder and metal powder, and the volume ratio of the auxiliary heat conduction materials is not larger than 10%. The surface of the supporting assembly is provided with a 5-10 [mu] m protective coating. By means of the collaborative design of macroscopic elastic supporting heat conduction and microcosmic composite powder heat conduction, the overall heat conductivity coefficient of the high-heat-conductivity solid hydrogen storage tank is larger than or equal to 25 W / (mK), the hydrogen absorption and desorption rate is increased by 2-5 times, and the high-heat-conductivity solid hydrogen storage tank is easy and convenient to assemble, stable in structure, controllable in cost, slight in hydrogen storage capacity loss and suitable for new energy automobiles, portable fuel cells, distributed energy storage systems and other scenes. The method has a wide commercial application prospect.

The utility model discloses a hydrogen filling system for a solid hydrogen storage bottle, which relates to the technical field of hydrogen filling for solid hydrogen storage bottles and comprises a high-pressure hydrogen source which is sequentially connected with a stop valve, a pressure reducing valve, a first pressure sensor, a pressure regulating valve, a second pressure sensor, a flow meter and a one-way valve through a hydrogen filling pipeline. The one-way valve is connected with a hydrogen inlet of a solid hydrogen storage bottle through a quick plug, and the solid hydrogen storage bottle is connected with a temperature control module. By arranging the stop valve, the pressure reducing valve, the first pressure sensor, the pressure regulating valve, the second pressure sensor, the flow meter, the one-way valve and the temperature control module, accurate control over the temperature, pressure and flow during hydrogen filling of the solid hydrogen storage bottle is achieved, it is guaranteed that the fixed hydrogen storage bottle can be subjected to hydrogen filling operation under the set pressure, flow and temperature, and the hydrogen filling system is safe and reliable.

This invention provides a BCC solid-state hydrogen storage safety control system, comprising: a hydrogen storage device having a hydrogen storage tube with a built-in BCC hydrogen storage alloy, a hydrogen charging valve for controlling the opening and closing of the hydrogen storage tube, and a coolant channel; a cooling system forming a closed-loop circulation loop with the coolant channel for supplying coolant to the hydrogen storage device; and a safety interlock control module for collecting safety-related parameters of the hydrogen storage device, cooling system, and environment. When the parameters meet the first-level, second-level, and third-level interlock conditions, the module correspondingly activates the first-level interlock to open the hydrogen charging valve, the second-level interlock to adjust the hydrogen flow rate and the operating parameters of the cooling system, and the third-level interlock to close the hydrogen charging valve. The BCC solid-state hydrogen storage safety control system of this invention features high integration, good safety, and high intelligence. Through an optimized heat exchange structure, rigorous multi-level interlock logic, and a comprehensive fault diagnosis model, the system achieves efficient thermal management, full-process safety protection, and intelligent fault handling during the hydrogen charging process.

The application discloses a magnesium-based solid material heating circulation hydrogen storage device, system and hydrogen storage method, which comprises a hydrogen storage tank, an elastic self-tight heating sleeve and a heating controller; magnesium-based hydrogen storage material powder is filled in the hydrogen storage tank, the elastic self-tight heating sleeve is sleeved on the outer wall of the hydrogen storage tank, and the elastic self-tight heating sleeve is connected with the heating controller. The hydrogen storage tank filled with magnesium-based solid hydrogen storage material powder is used for hydrogen storage, compared with traditional hydrogen storage modes such as gaseous and liquid states, the hydrogen storage density is improved, and the pressure of the hydrogen storage tank is greatly reduced, the hydrogen storage tank only needs to bear a pressure of about 3 MPa to complete the hydrogen storage work, and the safety of hydrogen energy storage hydrogen can be greatly improved through the solid hydrogen storage mode.

The application discloses a solid hydrogen storage device, which comprises a cylinder, a hydrogen outlet arranged at the top of the cylinder, a tail gas inlet arranged at the bottom of the cylinder, an inner container arranged in the cylinder, a solid hydrogen storage material arranged in the inner container, a metal pipe arranged at the bottom of the inner container, one end of the metal pipe being communicated with the tail gas inlet, an electric heating wire arranged outside the metal pipe, and a heat insulation layer arranged between the cylinder and the inner container. The application further provides an ammonia-hydrogen composite jet engine based on the solid hydrogen storage device and a control method.

The application discloses a kind of solid metal hydride continuous hydrogen release device and process, belong to solid hydrogen storage technical field, the device includes: solid hydrogen storage material storage bin, high-pressure hydrogen cylinder, solid hydrogen storage material hydrolysis hydrogen release bin and hydrogen pipeline;Solid hydrogen storage material storage bin one end is connected with high-pressure hydrogen cylinder, the other end is connected with solid hydrogen storage material hydrolysis hydrogen release bin, and high-pressure hydrogen cylinder provides pressure for the feeding of solid hydrogen storage material storage bin, and transports solid hydrogen storage material to solid hydrogen storage material hydrolysis hydrogen release bin, and solid hydrogen storage material hydrolysis hydrogen release bin is hydrolyzed hydrogen release reaction by extracting natural water with solid hydrogen storage material and releases hydrogen, and the other end of solid hydrogen storage material hydrolysis hydrogen release bin is connected with hydrogen pipeline, and the generated hydrogen is supplied to fuel cell for use.The application carries out continuous hydrogen delivery for the device with small internal space and long-time hydrogen demand, solves the problems such as heat dissipation and water extraction in hydrogen production process, and realizes the controllable hydrogen release of hydrolysis hydrogen storage material in water.

This invention provides a modular square solid hydrogen storage tank, its filling method, and a solid hydrogen storage unit. The modular square solid hydrogen storage tank includes a shell, a front end plate, and a vent pipe. The shell has a square cross-section, an open front end, and a sealed rear end. The shell is used to accommodate hydrogen storage blocks pre-formed from hydrogen storage material. The front end plate covers the front opening of the shell and seals it. The vent pipe is integrally formed with the front end plate, with most of the vent pipe located inside the shell. The vent pipe wall has multiple vent holes, and the vent pipe is used to assemble the hydrogen storage blocks. Multiple of the above-mentioned square solid hydrogen storage tanks can be combined to form a solid hydrogen storage unit. The square solid hydrogen storage tank has a simple structure, is easy to process, and has low manufacturing cost. After the hydrogen storage material is pre-treated into hydrogen storage blocks, the filling process of the hydrogen storage tank only requires threading the hydrogen storage blocks one by one onto the vent pipe, which shortens the filling time and increases the uniformity of filling.

This invention relates to the field of solid-state hydrogen storage technology and discloses a solid-state hydrogen refueling device. A winding mechanism is installed on one side of the chamber of the refueling skid, a pressure regulating mechanism is installed at the bottom of the chamber of the pressure buffer tank, and a pressure relief and dilution mechanism penetrating the refueling skid is installed at the top of the chamber of the pressure buffer tank. Based on the winding characteristics of the winding mechanism, this invention connects the inlet pipeline to the solid-state hydrogen equipment, guiding the vaporized hydrogen gas. The hydrogen gas is refueled into the hydrogen storage equipment through a combination of an inlet hose, a guide pipe, a pressure buffer tank, and an exhaust pipe. Simultaneously, three sets of flow meters are used to monitor the flow rate at multiple points along the refueling pipeline. Under the dynamic pressure regulation of the pressure regulating mechanism within the pressure buffer tank, the hydrogen gas at the inlet and outlet remains consistent, improving the accuracy of refueling measurement and monitoring, while simultaneously meeting the refueling requirements of different models and specifications of solid-state hydrogen.