6471 results about "Hydrogen storage" patented technology

The invention discloses a pipe network health real-time monitoring system and an evaluation method. According to the invention, through real-time health monitoring and dynamic deduction capability, the flexibility and safety of energy supply are significantly improved. The healthy twin module constructs a digital mirror image of the full life cycle of energy equipment, solar hydrogen production efficiency fluctuation, hydrogen storage tank pressure change and fuel cell attenuation trend can be accurately tracked, and risk points such as electrolytic cell abnormal hydrogen evolution and proton exchange membrane aging can be recognized in advance. The all-weather transparent monitoring enables the system to dynamically adjust the ratio of hydrogen production to power generation, the fuel cell is automatically switched to supply power in cloudy and rainy days, continuous energy supply is guaranteed, and the system can generate a coping plan in advance by simulating extreme scenes such as sudden drop of photovoltaic output and hydrogen leakage, so that the system is convenient to use. The energy interruption risk caused by sudden equipment failure is greatly reduced, meanwhile, the service life of key components is prolonged, the maintenance cost of a distributed energy network is reduced, and meanwhile the overall energy efficiency utilization rate is also improved.

The invention discloses a composite board ultrasonic defect detection method which comprises the following steps: S1, fixing a carbon fiber circumferential winding composite pressure container on a bracket, and establishing a coordinate system with the axis of the container as a z axis; s2, a 40 MHz dry coupling phased array ultrasonic probe is attached to the scanning starting point, and the contact angle of the probe is recorded; s3, moving the probe along the spiral track of the outer surface of the container at the speed of 20mm / s, and collecting A-scanning echo signals of all array elements; s4, performing pulse compression and time domain deconvolution processing on the acquired signal to obtain a time domain echo sequence; s5, delay time is calculated according to the shell curvature, the array element signals are compensated, and focusing B-scanning data are generated; s6, splicing the B-scanning data at the step length of 0.5 mm * 0.5 mm, and reconstructing C-scanning data corresponding to the space coordinates; and S7, inputting the C-scanning data into the trained Transform network, and outputting defect types, sizes and three-dimensional coordinates. The method realizes high-frequency ultrasonic composite board defect accurate detection, remarkably improves the microcrack recognition rate, and is widely applied to safety evaluation scenes of high-pressure hydrogen storage tanks and pressure vessels.

The invention discloses an optimal scheduling method and system for a wind-light-hydrogen storage micro-grid, and relates to the field of wind-light-hydrogen storage micro-grids, and the method comprises the steps: obtaining multi-source time sequence data, and carrying out the combined denoising and dynamic time alignment to generate a standardized input sequence; adopting a quantile regression model fused with a space-time attention mechanism to output a power prediction interval of wind and light output and load demand in a future time period; constructing a layered multi-objective optimization model; an improved adaptive particle swarm optimization algorithm is adopted to solve the layered multi-objective optimization model, and an equipment scheduling instruction set is generated; and dynamic correction is carried out, and micro-grid instruction distribution is carried out according to the equipment response priority. According to the method, multi-target conflicts such as power balance, equipment loss and energy efficiency are effectively balanced through multi-source data efficient preprocessing, space-time joint prediction interval generation and hierarchical multi-target optimization, and efficient and stable operation of the wind-light-hydrogen storage micro-grid is achieved.

The present invention describes an electric-thermal-hydrogen multi-energy device planning method for zero energy buildings, including the following specific steps: firstly, constructing operation constraints of electric and thermal devices in the zero energy buildings; secondly, constructing operation constraints of hydrogen devices including the electrolyzer, the fuel cell and the hydrogen storage device; then, in view of constraints on annual zero energy of the buildings, establishing the robust electric-thermal-hydrogen multi-energy device planning model considering source-load uncertainties; and finally, solving the robust electric-thermal-hydrogen multi-energy device planning model of the zero energy buildings by adopting an alternating optimization procedure based column-and-constraint generation algorithm. By using the zero energy buildings, the planning method disclosed by the present disclosure plays important roles in aspects of promoting the development and utilization of renewable energy on the demand side, reducing energy consumption in the field of buildings, and reducing the emission of greenhouse gases.

The invention relates to the technical field of new energy power systems, and discloses an energy storage coordination system and control method based on meteorological prediction and multi-energy complementation, and the system comprises a power generation end module which carries out the dynamic adjustment according to a power adjustment instruction of a power generation end; the meteorological prediction and data acquisition module is used for acquiring meteorological data in a future time period in real time and sending the meteorological data to the intelligent control and scheduling platform; the energy storage end module sends data including lithium battery SOC and hydrogen storage tank pressure to the intelligent control and scheduling platform and performs charging and discharging according to an energy storage end charging and discharging priority strategy; and the intelligent control and scheduling platform receives the electricity price data of the weather prediction and data acquisition module, the energy storage end module and the power grid in real time, generates a power generation end power regulation instruction and an energy storage end charging and discharging priority strategy, and meanwhile, improves the income and maximizes the hydrogen energy use proportion through electricity price peak-valley arbitrage and green electricity transaction premium. The power grid stability and the energy utilization rate are greatly improved, the energy storage life is prolonged, and the investment payback period is shortened.

A thermal management method for metal solid-state hydrogen storage, a hydrogen fuel cell system thereof and a rail transit vehicle. The hydrogen fuel cell system comprises a hydrogen fuel cell module and solid-state hydrogen storage modules, which are communicated via a hydrogen pipe; a first branch is provided on the periphery of the hydrogen fuel cell module; a diverter valve is provided at a liquid outlet end of the first branch, one branch of the diverter valve being communicated with a heat dissipation system, and another branch of the diverter valve being communicated with a second branch. Using heat generated during power generation of a hydrogen fuel cell to successively start the solid-state hydrogen storage modules helps to increase the system starting speed, thus improving the efficiency of hydrogen fuel cell systems.

The utility model relates to the field of physical adsorption hydrogen storage, and discloses a physical adsorption hydrogen storage tank which comprises a tank body and a tank cover, the tank body comprises a hydrogen inlet and outlet pipe, a porous heat exchange disc, a tank body, a low-temperature storage layer, a physical adsorption hydrogen storage material and a spiral heat exchange pipe. A plurality of porous heat exchange plates are arranged in the tank body, are sequentially mounted in the tank body and are connected with the low-temperature reservoir through guide pipes, the tank body is filled with a physical adsorption hydrogen storage material, a spiral heat exchange pipe is arranged in the tank body, and the spiral heat exchange pipe penetrates through the upper layer of the tank cover and penetrates out of the upper layer of the tank cover after passing through round holes of the porous heat exchange plates. And a heat insulation layer is arranged between the tank body and the low-temperature storage layer. The low temperature maintaining effect is improved, the low temperature in the tank is maintained, gas quickly enters the adsorption layer through the round holes, the gas distribution is more uniform, and when hydrogen needs to be released, a heat exchange medium is introduced into the spiral heat exchange pipe, so that the release of the hydrogen is accelerated.

The invention relates to the technical field of hydrogen energy, and discloses an auxiliary-machine-free solid oxide electrolytic hydrogen production system and an auxiliary coal electricity deep adjustment method, the hydrogen production system comprises an SOE heat box system for electrolytic hydrogen production, a hydrogen circulation subsystem and a hydrogen storage subsystem; the ejector is driven by external heat source steam, part of hydrogen at an outlet of the SOE heat box system is ejected to a low-pressure suction inlet of the ejector through the hydrogen circulation subsystem, and formed reducing mixed gas of steam and hydrogen enters a cathode inlet of the SOE heat box system. The system is driven by an external heat source and operates in an internal stack heating mode, so that the power consumption of the electrolytic hydrogen production system is reduced; by adopting the modes of external material supply, cathode ejector material self-circulation and multi-stream heat exchange, a complex cold and hot auxiliary machine of a traditional solid oxide electrolytic hydrogen production system is omitted, the structure is simple, and the system compactness is greatly improved; electric power-steam-air-condensed water flow coupling is established with a coal-fired power plant, and efficient, flexible and deep peak shaving is adjusted in combination with steam extraction multi-stage adjustment.

The invention provides a day-ahead optimization scheduling method and system for a wind-light-hydrogen storage off-grid operation system. The method comprises the following steps: establishing an off-grid planning outer-layer capacity optimization configuration model by taking the total cost of the wind-light-hydrogen storage off-grid system as a first objective function; in the off-grid operation state of the wind-solar-hydrogen storage coupled system, taking the off-grid operation cost of the wind-solar-hydrogen storage coupled system as a second objective function to establish an off-grid operation inner-layer optimization scheduling model; solving the off-network planning outer-layer capacity optimal configuration model through improved particle swarm optimization iterative optimization to obtain economically optimal hybrid energy storage capacity configuration; and determining the optimal load scheduling amount through the off-grid operation inner-layer optimization scheduling model and the off-grid planning outer-layer capacity optimization configuration model. The unreasonable charging and discharging time sequence of the hybrid energy storage system can be optimized, the cost influence on optimal configuration and operation of the wind-light-hydrogen storage off-grid system can be avoided, and the economical efficiency of the wind-light-hydrogen storage off-grid system is improved.

The utility model relates to the field of solid hydrogen storage, and discloses a magnesium-based solid hydrogen storage tank, and magnesium-based solid hydrogen storage materials are stored in the hydrogen storage tank. A foam metal material with heat-conducting property is filled between the magnesium-based solid hydrogen storage materials. The utility model has the beneficial effects that the system heat exchange efficiency is improved, the hydrogen charging and discharging rate is increased, the cycle life is prolonged, and the safety problem caused by excessive extrusion on the container body due to expansion of the magnesium alloy material can be effectively prevented.

The invention provides an efficient and stable ship hybrid power generation system which comprises a hydrogen production unit and an ammonia supply system, and the hydrogen production unit comprises an ammonia decomposer, a hydrogen separator, a high-pressure hydrogen storage tank, a fuel cell and an ammonia-hydrogen internal combustion engine. The ammonia decomposer enables the ammonia flow to enter the ammonia decomposer in a segmented constant mode for catalytic decomposition through four set working conditions; the hydrogen separator is used for separating and purifying the generated mixed gas, and the separated and purified hydrogen is respectively fed into the fuel cell and the ammonia-hydrogen internal combustion engine through valves for power generation; the molten salt system recycles high-temperature tail gas of the ammonia-hydrogen internal combustion engine through the heat exchanger for heat energy storage and power generation through the steam Rankine cycle system. The regulation and control method is used for stabilizing the system and prolonging the service life of equipment by limiting the dynamic loading rate and start-stop times of the fuel cell and the ammonia-hydrogen internal combustion engine, and is used for waste heat recovery power generation through the molten salt and the steam expansion machine, so that the efficiency of the system is improved.

The invention relates to the technical field of comprehensive application of renewable energy sources and hydrogen energy, in particular to a wind-solar-hydrogen multi-energy complementary intelligent scheduling platform. According to the technical scheme, the wind-light-hydrogen multi-energy complementary intelligent scheduling platform comprises a wind-light power generation unit which monitors wind power and photovoltaic power fluctuation in real time; the hybrid energy storage unit comprises a super capacitor and a flywheel for energy storage and respectively responds to millisecond-level and second-level power fluctuations; the hydrogen energy subsystem comprises an electrolytic hydrogen production device, a hydrogen storage tank and a fuel cell and responds to minute-level power scheduling; and the multi-time scale controller is configured to execute millisecond-level, second-level and minute-level cooperative control and dynamically match the wind-light fluctuation and the hydrogen energy response speed. According to the method, through multi-time scale dynamic cooperative control, the matching problem between the wind-solar power generation volatility and the hydrogen energy response lag is effectively solved, and seamless connection between second-level high-frequency fluctuation suppression and minute-level energy scheduling is achieved.

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 an extended-range hydrogen fuel power ship propulsion system, which relates to the technical field of ship propulsion and comprises an acquisition module, a quantum annealing optimization module and a quantum chip, the acquisition module is used for eliminating noise interference of acquired hydrogen energy ship power parameters through a Kalman filtering algorithm and generating a standardized data packet, and the quantum chip is used for receiving the standardized data packet and outputting the standardized data packet. The method comprises the following steps: mapping hydrogen energy ship power parameters into an Isin model, generating a control instruction according to a hydrogen fuel consumption rate, an equipment life attenuation coefficient and a navigation task priority weight, inputting the control instruction into a simulation model of a proton exchange membrane by a proton membrane regulation and control module, and dynamically regulating a hydrogen production rate and fuel cell power, according to the system, the efficient hydrogen energy closed-loop monitoring unit and the three-level safety protocol are adopted, the response speed and precision are improved, the stability and safety are remarkably enhanced, it is ensured that a ship can reliably operate under the complex working condition, and potential safety risks are reduced.

The invention discloses a solid-state hydrogen storage fuel cell system and a control method. The solid-state hydrogen storage fuel cell system comprises a fuel cell stack and a solid-state hydrogen storage module, the solid hydrogen storage module provides hydrogen for the fuel cell stack; the solid hydrogen storage module is provided with a first heat dissipation mechanism, and the fuel cell stack is provided with a second heat dissipation mechanism; the first heat dissipation mechanism and the second heat dissipation mechanism exchange heat through the first heat exchanger; an inlet of the first heat dissipation mechanism is provided with a PTC1 heater; an outlet of the first heat dissipation mechanism is provided with a first temperature sensor; the first heat dissipation mechanism is connected with the air compressor through a cooling liquid circulation pipeline; the air compressor, the intercooler, the humidifier and the tail gas silencer are sequentially connected through air ducts; the humidifier interacts gas with the fuel cell stack; heat generated by the fuel cell stack and waste heat of the air compressor are used for supplying heat to solid hydrogen storage and release, so that a radiator of the air compressor is omitted, and the integration difficulty of the solid hydrogen storage fuel cell system is reduced.

The invention discloses a preparation method of a high-heat-conductivity and high-density normal-temperature hydrogen storage material block, and relates to the field of hydrogen storage materials, and the preparation method comprises the following steps: step 1, uniformly mixing normal-temperature hydrogen storage material powder, binder powder and carbon material powder according to a set mass ratio to form mixture powder; 2, putting the mixture powder into a tablet press mold, and pressing the mixture powder into blocks; step 3, carrying out heat treatment on the block body under a vacuum or inert atmosphere condition; and 4, after heat treatment is completed, cooling the material to a set temperature, and taking out the material to obtain the high-heat-conductivity and high-density normal-temperature hydrogen storage material block. Through a pressing-cladding method, the binder and the normal-temperature hydrogen storage alloy powder are mixed, pressed and formed, so that the binder and the alloy particles are in close contact or are embedded, the binder is melted through heating, the alloy particles are coated with the melted binder, the alloy particles are adhered, the contact thermal resistance of the alloy particles is reduced, and the hydrogen storage capacity of the hydrogen storage alloy is improved. And the thermal conductivity of the material is greatly improved.

The invention relates to a multi-target operation optimization method and system for a green electricity hydrogen production grid-connected system considering multi-scale flexibility of a power grid, and the method comprises the steps: obtaining the power output of new energy at a grid side and the historical data of user load power, and obtaining typical operation days at the grid side and a load side through a clustering algorithm; establishing physical models of an electrolytic cell, a hydrogen storage tank, a fuel cell and the like in the system; considering the transferable characteristic of an electric load and the requirements of system peak regulation and new energy consumption, and formulating a day-ahead peak regulation optimal scheduling strategy according to typical operation days of a source side and a load side; an electricity-hydrogen operation optimization strategy with a primary frequency modulation capability is established based on self-adaptive droop control by considering factors such as an electrolytic bath rotation strategy, a wide-power operation characteristic and a transferable characteristic of a hydrogen load; power grid frequency deviation and electrolytic cell operation power are used as decision variables, multi-target operation optimization with the power grid frequency deviation rate and the new energy consumption rate as target functions is established, a non-dominated sorting genetic algorithm is adopted for solving, and an optimal operation scheme is obtained.

The invention discloses a micro-grid system planning and design method and device based on double-layer optimization, and relates to the field of micro-grid system planning and design, and the method comprises the following steps: S1, collecting the operation data of wind power, photovoltaic, hydropower, an energy storage power station, an electrolytic cell and a hydrogen storage tank in a micro-grid system, and the load data of the micro-grid system; s2, constructing a micro-grid system double-layer optimization model based on a double-layer optimization method; the upper-layer model is a capacity optimization layer, and the maximum total income within the operating age limit is used as a target function; the lower-layer model is a scheduling optimization layer, the maximum operation net income in a scheduling period is taken as an objective function, and system power balance, equipment operation and capacity are taken as constraint conditions; and S3, solving the double-layer optimization model by using an improved grey wolf algorithm and a solver. The microgrid system is planned and designed through a double-layer optimization method, a clean energy power generation and energy storage device capacity configuration scheme is reasonably configured, and an energy scheduling strategy is optimized.

The invention discloses a fuel cell coupled flow battery energy supply system and an operation control method thereof. The energy supply system comprises a basic energy supply unit, an energy storage peak regulation unit, a renewable energy power generation unit, an electrolytic hydrogen production unit, a hydrogen storage unit, a first-stage waste heat recycling unit, a second-stage waste heat recycling unit and a heat storage unit. The basic energy supply unit is used for providing a basic power load of the target building group; the energy storage peak regulation unit is used for providing fluctuation power load of the target building group; the first-stage waste heat recycling unit receives first-stage waste heat generated by power generation of the fuel cell and is used for indoor heating or indoor refrigeration. And the second-stage waste heat recycling unit directly receives the first-stage waste heat or second-stage waste heat from the first-stage waste heat recycling unit and is used for preheating the electrolyzed water and / or the hydrogen storage unit. By arranging the first-stage waste heat recycling unit and the second-stage waste heat recycling unit, waste heat is utilized in a multi-stage mode according to requirements, and the waste heat utilization rate is high.

The invention belongs to the technical field of source and load storage optimal configuration, and particularly relates to a hydrogen energy storage-containing high-speed service area source and load storage optimal configuration method and device, and the method comprises the steps: constructing a high-speed service area architecture comprising a photovoltaic array, an energy storage battery, a hydrogen fuel cell, an electrolytic cell, a hydrogen storage tank and a load; constructing a storage battery model and a hydrogen energy storage system model; establishing a multi-service-area collaborative optimization model; establishing an upper-layer model and setting constraint conditions of the upper-layer model by taking minimization of the internal total operation cost and investment cost of the high-speed service area as a target function; establishing a lower-layer model and setting constraint conditions of the lower-layer model by taking the minimum single-day operation cost of the high-speed service area as an objective function; and taking the upper-layer model as a planning layer, taking the lower-layer model as an operation layer, and iteratively solving the double-layer model to obtain a high-speed service area source-load-storage optimal configuration scheme. Through collaborative optimization of the hydrogen energy storage system and the multiple service areas, the operation cost is remarkably reduced, and the reliability and economical efficiency of the high-speed service area are improved.

The invention provides a high-capacity hydrogen storage alloy and a preparation method thereof. According to the method, the ferrovanadium alloy serves as a base body, rare earth is adopted for refining the ferrovanadium alloy, metal elements are doped, and the heat treatment process is further optimized. The hydrogen storage alloy comprises the following elements: TiaCrb (FeV + zwt.% RE) xMy, FeV represents a vanadium-iron alloy; rE represents a rare earth element, and z represents a doping amount; m comprises at least one element of Mn, Co, Ni, Cu, Zr, Zn, Al and Mo; a, b, x and y respectively represent the number of atoms of Ti, Cr, FeV and M, a + b + x + y = 100, 10 < = a < = 60, 0 < = b < = 70, 10 < = x < = 70, 0 < = y < = 10, and 0 < = z < = 10. The maximum hydrogen absorption amount of the prepared hydrogen storage alloy is 3.3 wt% or above at the temperature of 25 DEG C and the pressure of 9 MPa; the effective hydrogen absorption amount is more than 2wt%.

The invention discloses a hybrid hydrogen production system coupled with photovoltaic renewable energy and an optimal configuration method, and relates to the technical field of new energy utilization and energy storage control, and the hybrid hydrogen production system comprises a photovoltaic power generation unit, an alkaline water electrolytic tank unit, a proton exchange membrane electrolytic tank unit, a hydrogen storage unit, a control unit and the like. Photovoltaic electric energy is directly supplied to the two types of electrolytic cell stacks through the direct current bus, a traditional DC-DC power converter is omitted, and loss in the energy transmission process is reduced; and through a dynamic electrolytic cell switching algorithm configured by the control unit, the input proportion and the number of operation units of the two stacks are changed and adjusted in real time, and the quick response capability and the long-term stability are both considered. The system can stably produce hydrogen under the condition of renewable energy fluctuation, can dynamically adapt to input power change, can realize maximum power point tracking control on the premise of not using extra power conversion equipment, and remarkably reduces initial investment cost and operation energy consumption while ensuring hydrogen production efficiency.

The invention relates to the technical field of energy power, in particular to a vehicle power system based on a solid hydrogen pool, a passenger vehicle and a control method. The vehicle power system comprises a power driving module, a fuel cell module, a solid hydrogen pool module, a heat dissipation module and a whole vehicle control module. The fuel cell module comprises a cell stack unit, a hydrogen feeding and discharging unit, an air feeding and discharging unit and a tail discharging unit, and the cell stack unit is electrically connected with the power driving module. The solid hydrogen pool module comprises a solid hydrogen storage unit, a water supply unit and a hydrogen release buffer unit. The heat dissipation module is in butt joint with the cell stack unit and the solid hydrogen storage unit, and the whole vehicle control module is in communication connection with the power driving module, the fuel cell module and the solid hydrogen pool module. The passenger vehicle comprises a vehicle power system. The fuel cell module based on the solid hydrogen pool module is used for stably supplying power to the power driving module, so that power is provided for the passenger car, and the endurance requirement of the passenger car is met.

The composition general formula of the vanadium-based hydrogen storage alloy is VxTiyCrzCCe, x is larger than or equal to 0.7 and smaller than or equal to 0.8, y is larger than or equal to 0.04 and smaller than or equal to 0.1, z is larger than or equal to 0.1 and smaller than or equal to 0.18, x + y + z = 1, and a is larger than or equal to 0.001 and smaller than or equal to 0.005. The prepared vanadium-based hydrogen storage alloy has the advantages that the preparation process is simple, the hydrogen storage alloy which is easy to activate, high in capacity and good in cycling stability can be obtained by adding trace Ce, and the vanadium-based hydrogen storage alloy is suitable for large-scale generation preparation and commercial application. The alloy is prevented from being locally oxidized in the smelting process due to a small amount of Ce element, and the problem that the hydrogen absorption capacity is reduced due to excessive rare earth elements is avoided, so that the activation performance of the alloy is improved, and meanwhile, the high hydrogen storage capacity is obtained.

The invention relates to the technical field of hydrogen energy aviation, and discloses a hydrogen energy aviation fuel storage-supply system and method based on solid hydrogen storage, and the hydrogen energy aviation fuel storage-supply system and method based on solid hydrogen storage are characterized in that the hydrogen release amount adjusting range of a hydrogen storage material is matched with the hydrogen fuel demand adjusting range of a power device by adjusting the hydrogen release catalytic reaction environment temperature of the solid hydrogen storage material; by adopting the pressure stabilizing device, the problem of flow and pressure fluctuation caused by hysteresis of hydrogen release adjustment is solved, and hydrogen release flow adjustment and engine throttling control can be carried out through the thrust rod.

The invention provides a device for simulating the influence of deep fracture on natural hydrogen migration and an evaluation method, and belongs to the technical field of natural gas exploitation, the device comprises a core holder, an overburden pressure tracking pump, a temperature control device, a hydrogen storage tank and a nuclear magnetic device; the core holder is provided with two connecting ends; each connecting end is provided with a pressure gauge; the overburden pressure tracking pump is respectively connected with the two connecting ends; the temperature control device is connected with the core holder; the hydrogen storage tank is respectively communicated with the two connecting ends; a flow density meter is arranged on a communicating pipeline between the hydrogen storage tank and each connecting end; the nuclear magnetic device is used for forming a uniform magnetic field area at the core holder and acquiring nuclear magnetic signals of hydrogen atoms in the loaded sample in the uniform magnetic field; the evaluation method is carried out by adopting the device. According to the device for simulating the influence of the deep fracture on the migration of the natural hydrogen and the evaluation method, the migration mode of the hydrogen in the fractured reservoir can be accurately tracked and determined, and obtained experimental data are more comprehensive and accurate.

The invention belongs to the technical field of underground gas storage, and particularly relates to a long-term efficient hydrogen storage composite lining structure for an underground rock cavern and a preparation method of the long-term efficient hydrogen storage composite lining structure. The long-term efficient hydrogen storage composite lining structure for the underground rock cavern comprises surrounding rock and an internal composite structure of the surrounding rock. The surrounding rock reinforcing layer is formed by pressure pre-grouting in surrounding rock and can resist tensile stress transmitted to the surrounding rock by internal air pressure and enhance air tightness; the permeable layer is arranged on the inner side of the surrounding rock reinforcing layer and can discharge underground water to prevent hydrostatic pressure from causing extrusion deformation damage to the concrete bearing layer during construction and causing instability of the sealing steel lining; the reinforced concrete bearing layer is arranged on the inner side of the permeable layer and the outer side of the slip layer, and micro self-healing capsules capable of repairing cracks and enhancing sealing performance are evenly added in the injection molding process; the anti-drag sliding layer is arranged between the steel lining and the bearing layer and inhibits shear damage of the sealing steel lining to the bearing layer under high internal pressure; the steel lining sealing layer is arranged on the inner side of the sliding layer to bear part of gas load and seal gas.

Disclosed herein are systems and methods of gas sequestration of carbon dioxide from a fossil-fueled hydrogen production plant. The method includes producing at least hydrogen and carbon dioxide above ground from a fossil-fueled hydrogen production plant, injecting at least a portion of the hydrogen and carbon dioxide produced from the fossil-fueled hydrogen production plant into a geological hydrogen storage unit and a geological carbon dioxide storage unit, respectively, wherein the portion of the carbon dioxide is injected concurrently with the portion of the hydrogen. The injection of the portion of carbon dioxide and hydrogen underground are performed through carbon dioxide injection well(s) and hydrogen injection well(s), respectively, wherein a hydrogen injection wellhead(s) and a carbon dioxide injection wellhead(s) are located on a multi-well pad proximate the fossil-fueled hydrogen production plant.

The invention relates to a hydrogen storage station safety monitoring method and system based on a wireless passive three-signal sensor, and belongs to the technical field of safety monitoring. Wireless passive three-signal sensor nodes are deployed in a hydrogen storage station to form a three-dimensional monitoring network; the temperature, strain and hydrogen detection units of the sensor are simultaneously excited through the multi-frequency-band signal transceiver, so that parallel acquisition of three-parameter signals is realized; performing signal decoupling, temperature compensation and primary risk assessment by using an edge computing gateway; deep data mining and risk assessment are carried out through a cloud early warning platform in combination with a digital twinborn model; wherein multi-parameter signal decoupling is realized by adopting a frequency division multiplexing and wavelet denoising algorithm, and safety early warning is carried out in combination with a three-level early warning decision tree. The hydrogen storage station electric spark risk can be eliminated, high-precision synchronous monitoring of temperature, strain and hydrogen concentration is achieved, and the hydrogen leakage early warning time is shortened.

The invention provides a wind-solar hydrogen production and ammonia synthesis system and a configuration method thereof, electronic equipment and a storage medium. The wind and light hydrogen production and ammonia synthesis system comprises a wind and light hydrogen production subsystem, an ammonia synthesis subsystem and a coordination controller which are relatively independent, the ammonia synthesis subsystem comprises a hydrogen storage tank, the hydrogen storage tank is connected with the wind and light hydrogen production subsystem, and the configuration method of the wind and light hydrogen production and ammonia synthesis system can be executed by the coordination controller. The configuration method of the wind-solar hydrogen production ammonia synthesis system comprises the following steps: firstly, determining capacity configuration parameters of a wind-solar hydrogen production subsystem by taking the minimum leveling hydrogen production cost as a target; and determining the capacity configuration parameters of the ammonia synthesis subsystem based on the capacity configuration parameters of the wind-solar hydrogen production subsystem by taking the maximization of the wind-solar absorption rate, the minimization of the total cost of the system and the minimization of the operation cost of the system as targets. The wind and light hydrogen production subsystem and the ammonia synthesis subsystem are subjected to two-stage decoupling type system configuration, and stable operation of the ammonia synthesis process is ensured while efficient utilization of green electricity is achieved.