617 results about "Hydrogen technologies" patented technology

The invention provides a fault diagnosis method and system for a water electrolysis hydrogen production system based on a graph neural network, and belongs to the technical field of water electrolysis hydrogen production, and the method comprises the steps: obtaining key operation parameters of the water electrolysis hydrogen production system; constructing a time-varying dynamic adjacency matrix based on the key operation parameters, wherein the time-varying dynamic adjacency matrix is obtained by weighting and fusing physical topological structure data and multivariate time sequence data through arbitration parameters; inputting the multivariate time sequence data into a time feature extraction module, and extracting time dependent features; inputting the dynamic adjacency matrix into spatial feature extraction module spatial dependency features based on the time dependency features; fusing the time dependency feature and the spatial dependency feature by adopting a time-space gating fusion mechanism to obtain a fused spatial-temporal feature; and a fault classification module is adopted to identify whether the water electrolysis hydrogen production system has a fault and a fault type based on the fusion features. The diagnosis method is high in accuracy and fast in response.

The invention relates to the technical field of water electrolysis hydrogen production, and discloses an electrolytic bath outlet temperature control method and system, a medium and a program product, a flow control valve is arranged at an inlet of an electrolytic bath, the electrolyte input flow is converted into a core regulation variable directly influencing the outlet temperature, and active control over the outlet temperature is achieved. Furthermore, the flow control valve is directly connected with the control device, the opening degree signal can be received in real time, the flow can be adjusted, it is ensured that the temperature control instruction can be rapidly converted into the actual flow change, and the response speed to power fluctuation is increased. Furthermore, through a real-time operation state parameter set and a real-time temperature monitoring parameter set, it is ensured that a control signal is generated based on a real working condition, and the temperature control stability under fluctuating power is improved. Furthermore, through the synergistic effect of an electrolyte flow feedforward control signal and an electrolyte flow rear-end control signal, frequent current change caused by wind-solar power fluctuation can be effectively handled, and the fluctuation amplitude of the outlet temperature is reduced.

The invention relates to the technical field of new energy hydrogen production, and discloses a method for measuring and calculating new energy consumption in a hydrogen production process by combining real-time data. The method comprises the steps that hydrogen production system operation parameters and new energy power generation data are obtained, the hydrogen production system operation parameters comprise an electrolytic cell voltage fluctuation curve and a hydrogen purity detection value, and the new energy power generation data comprise a wind power prediction deviation rate and a photovoltaic actual output curve; establishing a new energy consumption evaluation model, performing time sequence alignment on the voltage fluctuation curve of the electrolytic cell and the wind power prediction deviation rate, and generating a dynamic matching degree index set; based on the set, a multi-scale feature extraction network is called to analyze a photovoltaic actual output curve, and a fusion analysis result containing output stability and absorption potential features is obtained; and inputting a result into the absorption amount optimization model for adaptive weight distribution, outputting a new energy absorption amount measurement value containing a time dimension absorption efficiency sequence and a hydrogen production equipment response parameter, and adapting to new energy absorption evaluation and scheduling requirements in hydrogen production.

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 belongs to the technical field of underground hydrogen storage, and particularly relates to a method for improving underground hydrogen storage capacity by stabilizing hydrogen foam through a porous carbon material, which comprises the following steps: step 1, preparing a hydrophobic modified porous carbon material: preparing the porous carbon material by using biomass waste as a raw material through a carbonization-activation process; carrying out hydrophobic modification treatment on the porous carbon material to enable the water contact angle of the material to reach more than 90 degrees; step 2, preparing a surfactant solution; step 3, preparing a porous carbon-surfactant composite system; and fourthly, hydrogen foam is generated and injected, wherein hydrogen and the porous carbon-surfactant composite system are fully mixed according to the gas-liquid volume ratio of 1: 1-10: 1, and then the mixture is injected into the stratum. By means of the method, the stability of hydrogen foam can be remarkably improved, the hydrogen storage efficiency and the hydrogen recovery rate are improved, and therefore the underground hydrogen storage amount is greatly increased.

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 utility model discloses a catalytic hydrogenation reactor for treating a biomass raw material with a high acid value and a high iodine value, and belongs to the technical field of oil product hydrogenation. The catalytic hydrogenation reactor comprises a reactor pressure-bearing container, an inner cylinder, an ash discharge port, a feeding assembly, a reaction assembly and a discharging assembly, the inner cylinder is arranged in the reactor pressure-bearing container, the feeding assembly and the reaction assembly are arranged in the inner cylinder, the reaction assembly comprises a ceramic tube bundle internal part, the discharging assembly is arranged above the inner cylinder, and the discharging assembly is arranged above the inner cylinder. The ash discharge port is formed in the center of the bottom of the reactor pressure-bearing container. By arranging the ceramic tube bundle internal part in the catalytic hydrogenation reactor, on one hand, the ceramic tube bundle internal part serves as a reaction assembly and has certain acid corrosion resistance, and on the other hand, the ceramic tube bundle internal part serves as a solid catalyst carrier, selective hydrogenation of high-acid-value and high-iodine-value biomass raw materials is achieved, the iodine value is effectively reduced, and coking of the high-iodine-value biomass raw materials in the reaction process is avoided; in addition, the acid value is maintained as far as possible while the iodine value is reduced, and the solid catalyst and the catalytic hydrogenation reactor are not corroded, so that the stability of the solid catalyst and the yield of the product are improved.

The invention discloses an auxiliary device for hydrogen production by water electrolysis, which relates to the technical field of hydrogen production by water electrolysis and is characterized by comprising a base frame, a water inlet pretreatment unit, an electrolysis unit, a gas-liquid separation and gas monitoring module and an intelligent operation regulation and control unit. The inlet water pretreatment unit is used for deeply purifying a water source through a multi-stage filtering device to produce deionized water meeting the electrolysis requirement; the electrolysis unit electrolyzes the purified water into a gas-liquid mixture of hydrogen, oxygen and water vapor; the gas-liquid separation and gas monitoring module adopts a vertical separation structure and a secondary separation system, and is combined with a hydrogen side oxygen sensor and an oxygen side hydrogen sensor to realize efficient gas-liquid separation and real-time gas purity monitoring; the intelligent operation regulation and control unit dynamically regulates electrolysis parameters and gas pipeline states based on monitoring data, and automatic closed-loop control is achieved. The device has the advantages of thorough water purification, high gas purity, safe and reliable operation, intelligent control and the like.

The invention belongs to the technical field of hydrogen production through water electrolysis, and discloses an automatic alkali liquor concentration balancing device of an AEM water electrolysis system and a control method of the automatic alkali liquor concentration balancing device. The cathode / anode gas-liquid separator is connected with the neutralization tank through a pipeline to form a double-circulation loop, and each loop independently neutralizes high-concentration and low-concentration alkali liquor, so that the automation of adjusting the concentration of the alkali liquor is realized. According to the invention, real-time monitoring, dynamic adjustment and optimization of the electrolyte concentration during all-working-condition operation of the AEM electrolytic cell are realized, manual intervention is reduced, and the stability of a hydrogen production system is improved.

The invention discloses a water electrolysis hydrogen production fastening device and a use method thereof, and belongs to the technical field of water electrolysis hydrogen production, the water electrolysis hydrogen production fastening device comprises a first pressure equalizing rod and a second pressure equalizing rod, the first pressure equalizing rod and the second pressure equalizing rod are symmetrically arranged on the outer sides of the two to-be-fastened ends of an electrolytic bath in parallel, and first connecting rod assemblies are installed at the two ends of the first pressure equalizing rod; second connecting rod assemblies are installed at the two ends of the second pressure equalizing rod, the first connecting rod assemblies and the second connecting rod assemblies are symmetrically arranged relative to the electrolytic cell, and a driving mechanism is arranged between the first connecting rod assemblies and the second connecting rod assemblies and can drive the first connecting rod assemblies and the second connecting rod assemblies to move relatively. The problems that a traditional hydraulic fastening method is high in cost, uneven in pre-tightening force and low in efficiency are solved, uniform, accurate and efficient pressing and fastening operation on the electrolytic cell are achieved, and sealing safety of the electrolytic cell is guaranteed.

The invention relates to the technical field of high-pressure hydrogen storage of hydrogen fuel cell automobiles, and provides a high-pressure hydrogen storage bottle opening combination valve with a streamline runner and a control method. The combination valve integrates a high-pressure stop valve, a two-way flow regulating valve, a filter and a pressure / temperature / flow sensor, an air supply channel, an air inflation channel, a discharge channel and a cooling channel are designed, and the air supply channel and the air inflation channel are provided with a common rail type channel. A pilot-operated pressure reducing valve and a main runner bidirectional flow regulating valve are additionally arranged on the gas supply channel to form a two-stage pressure reducing system, so that the pressure and flow of hydrogen at an outlet are effectively limited, and the hydrogen is safely conveyed to a fuel cell; a redundant one-way valve is additionally arranged on an inflation channel to achieve rapid filling. Flow resistance and turbulent flow dissipation are remarkably reduced through a streamline channel, a sealing interface is reduced through modular integration, actuation response and power density are improved, and safety and stability of pressure reduction gas supply and high-pressure filling working conditions, intrinsic safety of the system and reliability of the whole life cycle are ensured.

The invention discloses an alkaline water electrolysis hydrogen production operation boundary evaluation method considering hydrogen content constraint in oxygen, and relates to the technical field of water electrolysis hydrogen production. The method comprises the following steps: analyzing a generation mechanism of gas crossing in an alkaline water electrolytic cell, according to steady-state and dynamic models of HTO gas crossing caused by diaphragm permeation and alkaline liquor mixed circulation in the electrolytic cell, and based on structural parameters represented by the volume of a gas-liquid separator and operating parameters such as working pressure, temperature, electrolyte circulation flow and the like of the electrolytic cell; the method comprises the following steps: analyzing the influence of different parameters on HTO impurity accumulation, quantifying the sensitivity coefficient of each parameter on HTO accumulation, predicting an HTO accumulation trajectory through a model, determining the safe operation range of different parameters, determining the safe operation boundary of alkaline water electrolysis hydrogen production, and constructing a parameter priority regulation and control method based on sensitivity ranking under a given operation condition. And pressure-flow-temperature parameters are determined for cooperative adjustment under the dynamic working condition, and the HTO concentration overrun risk is inhibited in real time.

The utility model relates to the technical field of water dispensers, and discloses a hydrogen-rich water machine adopting a gas-water separation hydrogen melting technology, which comprises a first purification module, a mineralization module, a magnetization module and a hydrogen melting module which are connected in sequence, the hydrogen production module is connected between the first purification module and the hydrogen melting module in parallel; the mineralization module comprises a first activated carbon filter element, a second activated carbon filter element, a PP cotton composite filter element and a carbon rod filter element which are connected in sequence; the first activated carbon filter element is not subjected to acid pickling; the second activated carbon filter element is subjected to acid pickling. The hydrogen-rich water machine for providing the gas-water separation hydrogen melting technology, provided by the utility model, can be used for carrying out multi-section filtration and improving the mineralization effect.

The invention belongs to the technical field of hydrolysis hydrogen production, and particularly relates to a preparation method of a CoPx-CeO2 loaded platinum catalyst with a core-shell structure and application of the CoPx-CeO2 loaded platinum catalyst in seawater electrolysis hydrogen production. A Co (CO3) 0.5 (OH) nanorod precursor is prepared on foamed nickel through a hydrothermal method and then calcined to obtain CoPx, a CeO2 film is electrically deposited to obtain a CoPx-CeO2 composite carrier, and platinum is impregnated and loaded to obtain the CoPx-CeO2-Pt catalyst. The catalyst shows excellent hydrogen evolution catalytic activity in seawater, and the CoPx-CeO2 composite carrier prevents Pt nano-particles from being agglomerated through interaction of metal carriers, so that the atom utilization rate of Pt is increased. Meanwhile, the CeO2 film actively enriches OH <-> in an alkaline electrolyte to construct a local high-alkalinity microenvironment on the surface of the catalyst, Cl <-> in seawater is prevented from getting close to an active site corroding the catalyst through electrostatic repulsion, and the stability and durability of the catalyst are improved.

The invention relates to the technical field of carbon sequestration and hydrogen production, and discloses a carbon sequestration and hydrogen production method and a carbon sequestration and hydrogen production device combined with new energy surplus electric power, and the carbon sequestration and hydrogen production method combined with new energy surplus electric power comprises the following steps: regulating and controlling the temperature and pressure of a geological reaction ore bed; carrying out degassing treatment on the water to obtain degassed water; injecting a mixed solution of carbon dioxide and the degassed water into the geological reaction ore bed; carrying out carbon dioxide mineralization storage and hydrogen production reaction to obtain carbonate minerals and hydrogen; purifying the hydrogen to obtain purified hydrogen; the new energy surplus electric power is used for providing driving force for the carbon sequestration hydrogen production method. The carbon sequestration and hydrogen production method is high in reaction efficiency and reaction rate, not only assists carbon dioxide emission reduction, but also can obtain high-purity hydrogen, can also consume new energy surplus electric power, and has both environmental protection and resource utilization values.

The invention discloses a sealing assembly for an AEM electrolytic cell, an AEM electrolytic chamber unit and an AEM electrolytic cell system, and belongs to the technical field of water electrolysis hydrogen production. The sealing assembly comprises a first annular sealing piece and a second annular sealing piece, wherein the first annular sealing piece is provided with a first through hole; a plurality of first concave parts and a plurality of first convex parts are arranged on the ring surface; the second annular sealing piece is provided with a second through hole; a plurality of second concave parts and a plurality of second convex parts are arranged on the ring surface; the first concave part is used for being meshed with the second convex part, and the first convex part is used for being meshed with the second concave part, so that the first annular sealing piece and the second annular sealing piece form an interlocking structure. According to the sealing assembly, the sealing effect and stability of the AEM electrode membrane assembly are remarkably enhanced, and leakage of electrolyte or generated gas in the AEM membrane assembly is avoided. Meanwhile, the meshing structure can allow dynamic deformation to a certain degree, and the AEM electrolytic cell can operate and work for a long time under high-temperature alkalinity.

The invention relates to the technical field of water electrolysis hydrogen production, and particularly discloses a proton exchange membrane water electrolysis hydrogen production device, which comprises an electrolytic tank, a hydrogen generator, a proton exchange membrane and a hydrogen generator, the pre-compression heat exchanger is used for carrying out primary cooling on the hydrogen generated by the electrolytic cell, and the pre-compression heat exchanger is sequentially connected with a compressor, a gas-liquid separator and a precision filter; the after-compression heat exchanger is used for cooling the compressed hydrogen again and is connected with a hydrogen storage tank; raw material water used for electrolysis of the electrolytic cell sequentially passes through the after-compression heat exchanger and the before-compression heat exchanger to exchange heat with hydrogen, so that the problems of large compressor operation load, low energy efficiency and serious system heat energy waste of traditional electrolytic cell hydrogen production equipment are solved.

The invention relates to the technical field of renewable energy source hydrogen production, and discloses an off-grid alkaline electrolysis total hot standby method based on multi-source waste heat deep integrated recovery, which comprises the following steps: S1, constructing a frame which comprises an electrolytic cell array, a graded waste heat recovery loop, a phase change heat storage tank and an auxiliary and emergency assembly; s2, synchronously capturing multi-source waste heat of the system: starting a circulating power assembly of a graded waste heat recovery loop, and synchronously collecting process cooling waste heat and product gas waste heat generated in the operation process of the electrolytic cell array through the graded waste heat recovery loop; and S3, heat storage and cascade distribution. By constructing an independent closed type grading waste heat recovery loop, alkali liquor cooling waste heat in the process of operating an electrolytic cell captures sensible heat of high-temperature wet oxygen at an outlet of an oxygen separator through the waste heat recovery heat exchangers connected in parallel, direct loss of the two kinds of waste heat is avoided, external power or fuel does not need to be relied on for supplying energy to hot standby, and energy consumption in the hot standby stage is greatly reduced.

The invention relates to the technical field of underground hydrogen storage, and discloses an underground hydrogen storage prediction method coupled with a chemical reaction. The method comprises the following steps: determining the hydrogen leakage flux of the underground hydrogen storage according to reservoir information of the underground hydrogen storage based on the Darcy law; according to three-phase substances including mineral composition, solution composition and gas composition of the underground hydrogen storage, a physical model containing a mineral-fluid-gas storage three-phase substance equilibrium relation of the underground hydrogen storage is established by utilizing the law of conservation of substances; according to the dissolution trends of different minerals in the underground hydrogen storage under the hydrogen-fluid-rock chemical reaction system, a dissolution kinetic model of the different minerals is established; and according to the hydrogen leakage flux, the coupling physical model and the dissolution kinetic model, obtaining the change conditions of mineral composition, solution composition and gas composition in the underground hydrogen storage library caused by hydrogen-fluid-rock chemical reaction under the hydrogen leakage flux, so as to predict the hydrogen storage condition of the underground hydrogen storage library.

The invention relates to a simulation calculation method for researching the influence of pore structure deformation on the hydrogen storage efficiency of an underground aquifer, through the combination of a solid mechanical simulation process and a CFD (computational fluid dynamics) simulation process, the simulation system can simulate the influence on the hydrogen storage efficiency of the underground aquifer due to the production of internal fluid and the reduction of pore pressure in the reservoir exploitation process. The process that the original stress balance state of the reservoir is damaged, and consequently the pore structure of the reservoir is deformed is illustrated, and meanwhile, the transportation and storage process of hydrogen in the aquifer under the condition that the pore structure is deformed is illustrated. The distribution condition of the fluid at different time is analyzed by calculating the flowing speed of the fluid and the hydrogen storage amount in the porous medium, and then systematic analysis is carried out on improvement of the underground aquifer hydrogen storage technology. The method is accurate in result, high in convergence, easy to operate and high in reliability, and shows good application value in simulation research of underground aquifer hydrogen storage.

The invention provides a quantitative detection method for the average pressure of hydrogen in a PEM electrolyzed water cathode catalyst layer, and relates to the technical field of hydrogen production by electrolyzed water. The quantitative detection method comprises the following steps: carrying out a hydrolysis reaction in a PEM electrolytic cell, and calculating a hydrogen permeation flux N1 and a corresponding back pressure P1 under an electrolysis working condition; in another PEM electrolytic cell with the same structure, hydrogen is introduced into the cathode side, back pressure is applied to a cathode opening, meanwhile, inert gas is introduced into the anode side, an anode product channel is continuously purged, and the hydrogen permeation flux N2 under the hydrogen introduction working condition is calculated; gradually adjusting the back pressure under the hydrogen feeding working condition, repeating the step of testing the permeation flux under the hydrogen feeding working condition to obtain the hydrogen permeation flux under different back pressures, and drawing an N2-P2 curve; and determining a corresponding hydrogen back pressure value P2 when N1 is equal to N2, and calculating according to a formula deltaP = P2-P1 to obtain the average hydrogen pressure deltaP.

The invention discloses a method for preparing a carbon-coated cobalt-cerium composite material by using rapid Joule heat, and belongs to the technical field of catalytic materials and hydrogen production by electrolyzing water. The method comprises the following steps: dissolving a cobalt source and a cerium source in a solvent to obtain a mixed metal salt precursor solution, and then uniformly dipping or dropwise adding the mixed metal salt precursor solution onto a cellulose-based porous carbon source precursor to obtain a supported precursor; and finally, placing the load type precursor at two ends of an electrode of a Joule thermal reaction device, and under a vacuum condition, applying instantaneous current to carry out Joule thermal shock treatment so as to prepare the CoCe-C composite material. The preparation process is extremely simple, the energy consumption is extremely low, expensive precious metal and complex equipment are not needed, the obtained CoCe-C material serves as an anode catalyst to be applied to a hydrazine oxidation auxiliary water electrolysis system, the excellent catalytic activity and stability are shown, the voltage of an electrolytic bath can be remarkably reduced, low-energy-consumption, efficient and safe hydrogen production is achieved, and the method is suitable for industrial production. Wide industrial application prospects are realized.

The invention belongs to the technical field of hydrogen production by water electrolysis, and discloses a device and a method for hydrogen production by alkaline water electrolysis enhanced by active ions regulated and controlled by a magnetic field. An anode magnetic flow channel and an anode non-magnetic substrate in the electrolytic cell are integrally designed and are combined to form an anode magnetic field functional bipolar plate, and the anode magnetic flow channel is formed. In the electrolysis operation process, the migration behavior and spatial distribution of iron ions dissolved in the electrolyte are actively regulated and controlled by applying an external magnetic field to the anode region, so that the iron ion concentration of the electrolyte phase is not increased, and the main body structure and material system of the existing industrial electrolytic cell are not changed; and the dissolved iron ions are directionally enriched on an anode interface. Through the regulation and control, relatively high dynamic iron active site coverage can be maintained on the surface of the anode, the polarization loss of oxygen evolution reaction is reduced, and the efficiency and stability of the process of hydrogen production by alkaline water electrolysis under the conditions of high current density and wide load operation are improved.

The invention belongs to the technical field of water electrolysis hydrogen production, and particularly discloses an electrolytic bath double-side liquid inlet concentration and liquid level balance testing system which comprises an electrolytic bath, a cathode circulation heating tank, an anode circulation heating tank, a liquid supplementing device, a concentration detecting device, a liquid level detecting device, a stirring device and a control device. And a cathode liquid inlet and an anode liquid inlet are respectively formed in the electrolytic bath. According to the electrolytic bath double-side liquid inlet concentration and liquid level balance testing system and the control method thereof, the concentration detection device, the liquid level detection device and the automatic liquid supplementing control device are integrated, double-side electrolyte parameters are monitored and dynamically adjusted in real time, the problems of concentration deviation and liquid level unbalance caused by manual detection hysteresis are effectively solved, and the service life of the electrolytic bath is prolonged. The device has the advantages of automatically adjusting the liquid level and concentration balance on the two sides in real time and improving the safety and operation efficiency of an electrolysis system.

This invention discloses a method for suppressing DC bus voltage fluctuations in a renewable energy hydrogen production system, relating to the field of renewable energy electrolysis hydrogen production technology. The method includes: real-time acquisition of system operating parameters; estimation of bus voltage disturbance power based on a disturbance observer and frequency decomposition; prediction of load power using ARIMA and LSTM models and calculation of prediction deviation; dynamic setting of upper and lower limits of the bus voltage control range based on the prediction deviation and operating status; construction of a multi-objective optimization function, comprehensively considering bus voltage disturbance power, prediction deviation, and control limits, to solve for the power regulation commands of battery storage, fuel cells, and electrolyzers; and execution of power regulation control to achieve bus voltage stability. This invention can improve the graded response capability to voltage disturbances, the accuracy of load power change prediction, the adaptability of control boundaries, and the overall operational stability of the system, and is suitable for power quality control of hydrogen production systems under multi-source fluctuation scenarios.

The invention belongs to the technical field of methanol hydrogen production, and discloses an online methanol hydrogen production global control system, which comprises a feeding and evaporation unit, a reforming reaction unit, a gas purification and separation unit, a hydrogen storage and supply unit, a multi-source sensor group and a controller, the controller comprises a soft measurement module, a double-layer model prediction control module and a safety degradation module, and the soft measurement module estimates CO concentration in real time based on characteristics such as a temperature field, pressure drop and heating power. The double-layer model predictive control module realizes comprehensive optimization of hydrogen purity, energy efficiency and catalyst life through combination of inner-layer steady-state control and outer-layer economic optimization, and the safety degradation module triggers limited power or inerting purging operation under abnormal conditions. According to the invention, the whole-process optimal control from feeding, reaction, purification to hydrogen supply can be realized, the hydrogen purity and the system efficiency are improved, the CO concentration fluctuation is reduced, the service life of the catalyst is prolonged, and continuous and safe hydrogen supply is still maintained under the condition of sensor failure or operation disturbance.

The application discloses a hydrogen production system of geothermal water source and belongs to the technical field of hydrogen production. The system comprises a geothermal fluid circulation unit, an electrolyte preheating unit and an electrolytic hydrogen production unit. The geothermal fluid circulation unit realizes the recycling of geothermal water through a geothermal well, a recharge well and a geothermal heat exchanger; the electrolyte preheating unit connects an electrolyte storage tank and the second side of the geothermal heat exchanger through a second circulation pipeline to form a preheating circulation; the electrolytic hydrogen production unit comprises an electrolytic tank and a hydrogen purification device and receives the preheated electrolyte to produce hydrogen by electrolysis. In the preferred scheme, a flash evaporation pressurization and heat supplement unit is further included, the geothermal tail water is subjected to waste heat recovery through a flash tank and a steam compressor to generate high-temperature steam for auxiliary heating of the electrolytic tank. The application uses geothermal energy to replace electric heating to preheat electrolyte, significantly reduces the energy consumption of hydrogen production, has the advantages of reasonable structure, high automation degree, environmental protection and water saving and is suitable for hydrogen production application in areas rich in geothermal resources.

The utility model relates to the technical field of hydrogen storage, in particular to a hydrogen adjusting system based on solid hydrogen storage, which comprises a solid hydrogen storage tank, a high-temperature heating medium storage tank, a low-temperature heating medium storage tank, a first circulation pipeline, a first valve, a second circulation pipeline, a first adjusting valve, a third circulation pipeline and a second valve, the high-temperature heat medium storage tank communicates with a heat exchange cavity of the solid hydrogen storage tank through a first circulation pipeline, and the first valve is arranged on the first circulation pipeline. The low-temperature heat medium storage tank communicates with the heat exchange cavity of the solid hydrogen storage tank through a second circulation pipeline, and the first adjusting valve is arranged on the second circulation pipeline. The low-temperature heat medium storage tank communicates with the high-temperature heat medium storage tank through a third circulation pipeline, and the second valve is arranged on the third circulation pipeline. According to the efficient hydrogen storage system, supply and demand balance of hydrogen production and hydrogen use is achieved, through the dynamic hydrogen adjusting effect of the solid hydrogen storage system, the defects that green energy hydrogen production is unstable and discontinuous can be overcome, and the continuous and stable production working condition of the hydrogen use end is met.

The invention belongs to the technical field of hydrogen-containing compound preparation, and particularly relates to an electrochemical regenerated solvated aluminum hydride as well as a preparation method and application thereof. According to the method, an AlH3 dehydrogenation product aluminum powder is converted into a functional electrode, and aluminum is hydrogenated again under electrochemical driving by regulating and controlling the solvation environment of an electrolysis system to regenerate AlH3. The invention not only breaks through the dilemma that AlH3 is difficult to directly hydrogenate under the limitation of traditional thermodynamics, but also constructs a reversible material system, and provides a new research normal form for the development of the next generation of high-energy-density and recyclable hydrogen storage technology.

This invention provides a side-chain quinine polymer, its preparation method, and its application in the preparation of anion exchange membranes, belonging to the fields of fuel cells and water electrolysis for hydrogen production. First, an aromatic monomer, a functional monomer, and a quinine monomer are synthesized into a quinine polymer with good alkali resistance via a superacid-catalyzed condensation reaction. Second, a side-chain quinine polymer is prepared based on the synthesized quinine polymer. Finally, the side-chain quinine polymer is used as the main chain polymer for casting, and a high-performance all-carbon chain anion exchange membrane is obtained through side-chain grafting modification. The alkaline anion exchange membrane prepared by this invention exhibits excellent chemical stability, ionic conductivity, and mechanical properties, demonstrating superior overall performance. It can be applied in alkaline fuel cells, water electrolysis, energy storage batteries, carbon dioxide conversion, electrodialysis, and other electrochemical device fields.