2289 results about "Hydrogen supply" patented technology

The invention provides a fuel cell hydrogen supply system and a hydrogen supply method. The fuel cell hydrogen supply system comprises a liquid hydrogen storage tank, a first gas path connected between the liquid hydrogen storage tank and a fuel cell, a second gas path connected in parallel with the first gas path, and a control assembly, a gasification device is arranged on the first gas path, and a gas storage bottle is arranged on the second gas path; the control assembly comprises a controller and a plurality of control valves; the controller controls the plurality of control valves and can respectively control the connection or disconnection of the first gas path and the second gas path, so that the liquid hydrogen in the liquid hydrogen storage tank is conveyed to the fuel cell through the first gas path, and when the pressure of the gaseous hydrogen in the liquid hydrogen storage tank exceeds a first preset pressure threshold value, the gaseous hydrogen is stored in the gas storage bottle through the second gas path; and hydrogen can be supplied to the fuel cell through the second gas path. According to the fuel cell hydrogen supply system, gaseous hydrogen exceeding the first preset pressure threshold in the liquid hydrogen storage tank can be recycled, so that the release of the gaseous hydrogen to the outside is reduced, and the waste of resources is reduced.

The invention discloses a porous ejector, a use method thereof and a fuel cell system, and belongs to the technical field of fuel cells. Comprising a shell, a cavity is formed in the shell, and the cavity comprises a suction cavity, a mixing chamber, a second flow stabilizing chamber and a diffusion section which are sequentially arranged; a nozzle body is mounted in the suction cavity and is used for accelerating and depressurizing the driving fluid and spraying the accelerated and depressurized driving fluid into the suction cavity to form a negative pressure area; an ejection opening is formed in the side wall, corresponding to the suction cavity, of the shell and used for introducing an ejection fluid, and the ejection fluid and the driving fluid subjected to acceleration and pressure reduction are mixed in the mixing chamber; a nozzle assembly is arranged at the end, close to the mixing chamber, of the nozzle body and comprises at least one nozzle, and driving fluid is accelerated through a hole channel of the nozzle. The invention provides a porous ejector, a use method thereof and a fuel cell system, and solves the technical problems of low fuel injection efficiency and insufficient energy utilization of a single-hole ejector used in a traditional hydrogen supply system.

The invention discloses a mobile modular ammonia-hydrogen fuel cell system and a power generation method. The mobile modular ammonia-hydrogen fuel cell system comprises an ammonia storage module, an ammonia filling module, a hydrogen supply module and a fuel cell module, the ammonia storage module is connected with the ammonia filling module, the ammonia filling module is connected with the hydrogen supply module, and the fuel cell module is communicated with the hydrogen supply module; the hydrogen supply module comprises a plurality of reactors and combustors which are separately arranged; the fuel cell module comprises a fuel cell and a lithium battery which are connected in series; wherein two reactors are flue gas heating reactors, and the other reactor is an electric heating reactor; the combustor is connected with the flue gas heating reactor; the two flue gas heating reactors are simultaneously communicated with the electric heating reactor; the lithium battery is communicated with the electric heating sheet, and a purification unit is arranged between the electric heating reactor and the fuel cell. The mobile modular ammonia-hydrogen fuel cell system can realize flexible carrying of equipment and rapid supply of fuel, can realize rapid power supply under emergency conditions, and has the advantages of being green, pollution-free, wide in adaptive condition and the like.

The invention relates to a cathode closed type air-cooled fuel cell for an unmanned aerial vehicle and a working method of the cathode closed type air-cooled fuel cell. The fuel cell comprises a hydrogen supply subsystem, an oxygen supply subsystem, a cooling path subsystem and an electric pile, the hydrogen supply subsystem and the oxygen supply subsystem complete heat exchange between liquid hydrogen and high-temperature air through a liquid hydrogen vaporizer, and the effects of liquid hydrogen vaporization and high-temperature air cooling are achieved. By arranging the first vortex tube to replace a traditional pressure reducing valve, potential energy of vaporized high-pressure hydrogen is recovered by the first vortex tube, the vaporized high-pressure hydrogen is separated into cold flow and hot flow in the first vortex tube, and the hot flow partially enters an end plate of the galvanic pile to heat the end plate, so that the temperature distribution in the galvanic pile is optimized, and the voltage consistency between single cells is improved; therefore, the performance and durability of the stack are improved. When the fuel cell is used for the unmanned aerial vehicle, the fan of the fuel cell is also used as a propeller of the unmanned aerial vehicle, so that the system integration level is increased.

The invention discloses a direct-current hollow electrode hydrogen plasma furnace mineral powder smelting system and method and application, and belongs to the technical field of hydrogen metallurgy. The system comprises a hollow electrode gas powder injection hydrogen plasma gun system, a direct current bottom electrode ore-smelting electric furnace system, a fine ore and hydrogen supply system and the like. The hollow electrode and the furnace bottom electrode form a direct-current arc, hydrogen carrying mineral powder is sprayed into an arc area to generate high-temperature hydrogen plasma, mineral powder reduction is achieved, and metal and slag are separated. According to the method, hydrogen serves as a reducing agent, carbon emission is reduced, the reaction efficiency is high, energy consumption is low, and the method can be used for steelmaking, smelting of micro-carbon ferromanganese and titanium slag and recovery of valuable metal in nonferrous smelting waste slag and has good green metallurgy application prospects.

The invention discloses an integrated adjustable ejector for a vehicle-mounted hydrogen supply circulating system, which relates to the technical field of ejectors for vehicle-mounted hydrogen supply circulating systems and comprises a hydrogenation pipeline, a working pipeline and a circulating return pipeline. The circulating return pipeline comprises an integrated adjustable ejector, a hydrogen compressor, a steam-water separator, a circulating return pipeline one-way valve and a pressure reducing valve; the integrated adjustable ejector comprises a shell, a hydrogen inlet and outlet, a storage cavity, a valve, a control device, an execution controller and a monitoring and temperature control module. The integrated adjustable ejector is installed on the circulating backflow pipeline, the monitoring and temperature control module is integrated on the ejector, the hydrogen flow, pressure and temperature are monitored in real time, and the hydrogen temperature is adjusted so that stable operation can be achieved; the fuel cell reactor hydrogen flow sensor converts flow required by a fuel cell reactor into an electric signal, transmits the electric signal to the control device, and controls the execution controller to adjust the valve, so that dynamic optimization is realized, and various working condition requirements of a hydrogen fuel cell automobile are met.

The invention relates to the technical field of automobile energy supply, in particular to a solid hydrogen storage-fuel cell integrated power assembly system based on dual-mode hydrogen supply, which comprises a hydrogen supply path identification module, a hydrogen storage unit state monitoring module, a linkage path switching module, a fuel cell load matching module and a safe hydrogen discharge regulation and control module. According to the method, the hydrogen supply pressure difference value is obtained by dynamically comparing the pressure of the cavity of the hydrogen storage tank with the pressure of the hydrogen inlet of the fuel cell, the current hydrogen supply path state can be accurately recognized in the early stage, rapid judgment of the hydrogen supply mode and accurate control of path switching are achieved, whether the risk of hydrogen supply interruption exists or not can be effectively screened, and the reliability of hydrogen supply is improved. The switching reliability of a hydrogen supply channel is improved through cross comparison of key state signals of a main channel and a standby channel, and instant response and energy consumption optimization of hydrogen discharge safety regulation and control are guaranteed through a linkage feedback mechanism between the hydrogen concentration change rate in unit time and catalytic converter control power.

To provide a hydrogen production system that can perform aqueous reaction to superheated steam by utilizing high-temperature gas exhausted from a carbonization furnace.SOLUTION: A hydrogen production system 1 that hydrolyzes biomass into pellets by using a continuous-type subcritical water comprises: a carbonization furnace 3 which incompletely burns and carbonizes pellets; a carbonization rate measuring device 31 which measures a ratio of carbide; a superheated steam generator 4 which generates superheated steam; a thermal decomposition furnace 5 which generates thermally decomposed gas; a water gas recovery device 6; and a control device 90, where the carbonization furnace 3 has: an input port 301a into which pellets are input; a housing part 301 which houses the input carbide; an exhaust port 301b which exhausts carbide created by carbonizing pellets; and a carbonization degree evaluation part 313 which evaluates a carbonization degree of the created carbide, where a control device 90 controls an atmospheric temperature inside the housing part 301 such that a ratio of the carbide measured by the carbonization rate measuring device 31 and a carbonization degree evaluated by the carbonization degree evaluation part 313 become constant.SELECTED DRAWING: Figure 1

The invention discloses a hydrogen supply and energy storage device which comprises a hydrogen storage tank body, a gaseous hydrogen storage tank is installed in the hydrogen storage tank body, a liquid hydrogen storage tank is installed on the hydrogen storage tank body, a supporting plate is fixedly connected to the hydrogen storage tank body, and a cooling liquid storage box is installed at the top end of the supporting plate. A transverse plate is fixedly connected to the side wall of the cooling liquid storage box, metal cooling fins are arranged on the side wall of the transverse plate, and the cooling device further comprises a cooling circulation assembly and an air blowing cleaning assembly. A motor drives a first sector gear to rotate, the first sector gear is alternately engaged with a transmission gear and a driven gear, so that a rotating shaft drives metal heat dissipation fins to rotate for heat dissipation, and meanwhile, the driven gear drives cooling liquid to circularly flow in a sealing pipe, a cooling pipe and a liquid inlet pipe through a connecting rod and a piston rod; and cold airflow generated by the fan is used for dissipating heat of the hydrogen conveying pipe, so that the heat dissipation effect is improved.

The invention relates to the technical field of hydrogen storage system testing, and discloses a one-way valve combined hydrogen storage system durability test bench and a test method. A main control computer of the rack is used for configuring test task parameters, coordinating operation of subsystems and processing test data; the high-pressure hydrogen supply subsystem comprises a pressure-adjustable hydrogen source and a pressure closed-loop control module, and can apply accurate and controllable hydrogen pressure to the inlet end of the tested system according to test task parameters; the multi-channel valve state acquisition subsystem acquires the inlet and outlet pressure of the valve, the surface temperature of the valve body and vibration spectrum data in real time through pressure, temperature and vibration sensor arrays arranged at the valves, and transmits the data to the main control computer; the valve action driving subsystem comprises a high-speed electromagnetic actuator array and a displacement feedback module and can drive all valves to execute a preset opening degree sequence and opening and closing frequency. And the durability evaluation subsystem is embedded into the main control computer, calculates the accumulated damage degree of the valve and predicts the residual life cycle.

The invention provides a multi-stack series controllable fuel cell system, a stack closing control method and a vehicle, the system comprises a stack module, a high-voltage power module, a double-switch module, an air supply module, a hydrogen supply module and a thermal management module, the stack module comprises a plurality of stacks which are electrically connected in series, a series circuit between the negative electrode end of each electric pile and the positive electrode end of the next electric pile is marked as an electrical circuit, and the positive electrode end of the first electric pile is connected with the positive electrode end of the high-voltage power module to form the electrical circuit; the double-switch module comprises a first relay switch and a second relay switch; the first relay switch is configured for each galvanic pile and is arranged on an electrical circuit related to the positive end of the galvanic pile; the second relay switch is connected in parallel with the galvanic pile; the system further comprises a first electromagnetic valve module arranged between the air supply module and the electric pile module, a second electromagnetic valve module arranged between the hydrogen supply module and the electric pile module, and a third electromagnetic valve module arranged between the heat management module and the electric pile module. The service life of the system can be prolonged.

The invention discloses a power control method for a methanol reforming fuel cell power generation system, and relates to the technical field of power generation system power control, and the method achieves the precise representation of the internal dynamic coupling relation of the system through the construction of a digital twin model covering the whole methanol reforming process and the whole electrochemical conversion process of a fuel cell. Therefore, the problem of hydrogen supply lag caused by reforming reaction delay in the traditional control is effectively eliminated, and the output power of the fuel cell can be highly synchronized with the load demand; the Smith predictor is adopted to perform online estimation and compensation on methanol reforming inherent time delay, and the MPC is predictively controlled to perform real-time optimization scheduling under the constraints of economical efficiency and equipment health state in combination with a multi-target model, so that the power generation efficiency is improved, the fuel consumption and the operation cost are remarkably reduced, and the inhibition capability of the system on load fluctuation is enhanced.

The invention relates to a composite injection hydrogen internal combustion engine and an injection control method thereof, and the composite injection hydrogen internal combustion engine comprises an air inlet system, a low-pressure air inlet channel hydrogen supply system, a high-pressure in-cylinder direct injection hydrogen supply system, an ignition system and a control system, the control system dynamically adjusts the ratio of low-pressure gas inlet channel hydrogen injection to high-pressure cylinder internal direct injection hydrogen by correspondingly controlling the working states of the gas inlet system, the low-pressure gas inlet channel hydrogen supply system and the high-pressure cylinder internal direct injection hydrogen supply system, and specifically, the ratio of low-pressure gas inlet channel hydrogen injection to high-pressure cylinder internal direct injection hydrogen injection is adjusted according to the rotating speed and target power of an engine. The proportion of air inlet channel injection and in-cylinder direct injection is dynamically adjusted. Compared with the prior art, a composite double-injection mode is introduced, more accurate combustion control can be achieved, higher flexibility and adaptability are provided, the performance and combustion efficiency of the hydrogen internal combustion engine can be optimized within a wider working condition range, and the combustion stability and fuel economy of the engine are effectively improved.

The invention relates to a hydrogen supply system and a new energy automobile. The system comprises a liquid hydrogen module and a gas hydrogen module, wherein the liquid hydrogen module and the gas hydrogen module are used for respectively providing hydrogen and high-pressure hydrogen subjected to first pressurization treatment for a pressurization module; the first side of the recovery module is connected with the liquid hydrogen module, and the recovery module is used for receiving recovered gas hydrogen discharged by the liquid hydrogen module and obtaining pressurized recovered gas hydrogen; the second side of the recovery module is connected with the gas hydrogen module and is used for transmitting the pressurized recovered gas hydrogen to the gas hydrogen module; the pressurizing module is used for performing second pressurizing treatment and third pressurizing treatment on the hydrogen subjected to the first pressurizing treatment and the high-pressure hydrogen to obtain pressurized target hydrogen; the buffer module is used for supplying the supercharged target hydrogen to the engine module. By adopting the hydrogen supply system, under the condition of low liquid hydrogen storage pressure, the liquid hydrogen supply pressure can be effectively maintained, stable operation of a fuel cell is guaranteed, meanwhile, evaporated hydrogen of the liquid hydrogen system is recycled, the energy utilization rate is increased, and then the power and cruising ability of a vehicle are guaranteed.

The invention belongs to the field of flexible peak regulation and carbon reduction of thermal power generating units, and discloses a power station boiler oxygen-enriched hydrogen-ammonia-doped system and a working method thereof.The power station boiler oxygen-enriched hydrogen-ammonia-doped system comprises a boiler, and two combustors on the lower portion of the boiler are micro-hydrogen combustors; a combustion outlet of the micro-hydrogen combustor is connected with a lower hearth of the boiler, the hydrogen main gun is obliquely inserted into the inner side of a pulverized coal air chamber of the micro-hydrogen combustor, the hydrogen ignition gun is located in the middle of the pulverized coal air chamber of the micro-hydrogen combustor, and the hydrogen main gun and the hydrogen ignition gun are both connected with the hydrogen supply system. The boiler is provided with secondary air nozzles above and below each burner, the secondary air nozzle below the lowermost micro-hydrogen burner is arranged as a lower secondary air nozzle, the secondary air nozzle above the lowermost micro-hydrogen burner is arranged as an ammonia-doped secondary air nozzle, and the secondary air nozzle below the lowermost micro-hydrogen burner is arranged as an ammonia-doped secondary air nozzle. The secondary air nozzles above and below the uppermost micro-hydrogen burner are ammonia-doped secondary air nozzles, and ammonia gas inlets of the ammonia-doped secondary air nozzles are connected with an ammonia supply system. The problem of unstable combustion under low load can be solved by combining hydrogen-doped ammonia combustion and air oxygen-enriched combustion supporting.

The utility model provides a compound device for providing feed gas for preparing green ammonia from new energy and a green ammonia synthesis system. The composite device comprises a deep cooling air separation nitrogen generation subsystem, a hydrogen supply subsystem and a main heat exchanger, and the hydrogen supply subsystem comprises a water electrolysis hydrogen generation unit, a first hydrogen compressor, a second hydrogen compressor, a hydrogen storage tank and a hydrogen conveying pipeline. The hydrogen conveying pipeline comprises a first hydrogen conveying pipeline, a second hydrogen conveying pipeline and a third hydrogen conveying pipeline; the main heat exchanger is a multi-channel heat exchanger and comprises a first flowing channel used for flowing of a first medium and a second flowing channel used for flowing of a second medium, the second hydrogen compressor is connected with the hydrogen storage tank through the first flowing channel, and the hydrogen storage tank is connected with the third hydrogen conveying pipeline through the second flowing channel. The composite device provided by the utility model can ensure the supply stability of the raw material hydrogen of the ammonia production subsystem, and solves the technical problem that the hydrogen supply is unstable in the existing green ammonia synthesis process.

An in-situ biogas purification method for anaerobic digestion of sludge based on exogenous hydrogen supply relates to the field of solid waste resource utilization and renewable energy technology. The purpose of the present invention is to solve the problems of low hydrogen solubility and insufficient carbon dioxide bioconversion in the biogas purification process, as well as the inhibitory effect of excessive hydrogen dosage on biogas production by anaerobic digestion of sludge. The present invention utilizes the anaerobic digestion process of sludge in an anaerobic environment to produce biogas, and adds hydrogen to the process by direct hydrogen input or zero-valent iron corrosion, so that hydrogen penetrates into the liquid phase. The hydrogenotrophic methanogens in the system use hydrogen as an electron donor and carbon dioxide in the biogas produced by anaerobic digestion of sludge as an electron acceptor to convert hydrogen and carbon dioxide into methane to achieve in-situ biogas purification. The present invention can obtain an in-situ biogas purification method for anaerobic digestion of sludge based on exogenous hydrogen supply.

A distributed hydrogenation device relates to the field of hydrogen energy application and comprises a water heater, a water cooler, a solid hydrogen storage system, a hydrogen booster pump, a cooler and a hydrogenation gun, the solid hydrogen storage system comprises a heat exchanger, a combined placement rack and a plurality of solid hydrogen storage modules, the water heater and the water cooler are connected with the heat exchanger, and the hydrogen booster pump is connected with the combined placement rack. A plurality of solid hydrogen storage modules are placed on the combined placing frame, metal hydrogen storage alloy is arranged in each solid hydrogen storage module and used for storing hydrogen, the solid hydrogen storage system is sequentially connected with the hydrogen booster pump, the cooler and the hydrogenation gun, and a buffer tank is arranged between the hydrogen booster pump and the hydrogenation gun. The temperature of the heat exchanger is regulated and controlled, so that the solid hydrogen storage system supplies hydrogen to the hydrogen booster pump at the required pressure, the hydrogen booster pump supplies hydrogen to the terminal vehicle-mounted hydrogen storage device through the hydrogenation gun after boosting to the required pressure, and the external hydrogen supply equipment supplements hydrogen to the solid hydrogen storage system regularly for the next cycle.

The invention provides a refueling station filling function detection device and method. The device comprises an operation control module, a vehicle-mounted hydrogen storage simulation module, a hydrogen diffusion module, a hydrogen supply module, a nitrogen purging module, a hydrogen replacement module, a weighing metering module and a skid-mounted carrying module. The operation control module comprises a control unit and an operation panel, different control signals are generated according to the requirements of workers, and the vehicle-mounted hydrogen storage simulation module is used for simulating vehicle-mounted hydrogen storage systems of different vehicle types and is connected with a hydrogen filling port of the hydrogen supply module through a main filling pipeline; the nitrogen purging module and the hydrogen replacement module are connected with the main pipeline through a pressure regulating valve and a one-way valve; the hydrogen diffusing module is connected with the main pipeline through a stop valve, and hydrogen in the pipeline of the device is vented through a flame arrester. By adopting the device, the problems of complicated operation and easy damage to equipment in a station in the existing detection technology are solved, the pressure and temperature of related media are detected in real time by adopting an automatic detection technology, and the filling function and metering of the hydrogen filling machine are monitored.

The mobile hydrogen energy power generation system comprises a hydrogen engine, the output end of the hydrogen engine is connected with the input end of a power generator, and the power generator is electrically connected with a battery pack; a hydrogen inlet of the hydrogen engine is connected with a hydrogen outlet of the buffer tank through a first hydrogen supply pipe set, a hydrogen inlet of the buffer tank is connected with a hydrogen source through a second hydrogen supply pipe set, a third hydrogen supply pipe set is installed on the second hydrogen supply pipe set in a matched mode, and the end of the third hydrogen supply pipe set is connected with a gas port of the solid hydrogen storage module. The solid hydrogen storage module is filled with solid hydrogen storage materials, a fourth hydrogen supply pipe set is installed on the third hydrogen supply pipe set in a matched mode, and the end of the fourth hydrogen supply pipe set is connected with the other hydrogen inlet of the buffer tank. By arranging the solid hydrogen storage module, hydrogen can be stably supplied to the hydrogen engine, so that the generator can stably output electric energy, and the system is suitable for equipment or systems with high requirements for electric energy quality, good in safety and stability, low in overall energy consumption and low in power generation cost.

The invention provides a hydrogen supply control method of a fuel cell system, a controller, a system and a medium, and relates to the technical field of fuel cells. The method comprises the steps that in response to a starting instruction, the opening degree proportion of a first proportional valve is controlled to be adjusted to K11 from K10 through a first PID control parameter, K10 is the opening degree proportion of the first proportional valve which does not allow hydrogen to pass at all, and K11 is the initial opening degree proportion of the first proportional valve at the current environment temperature; obtaining a current actual pile entering pressure value and a hydrogen pile entering pressure set value of the electric pile; the second PID control parameter is used for controlling the opening proportion of the first proportional valve to be adjusted till the deviation between the actual reactor entering pressure value and the hydrogen reactor entering pressure set value is within the allowable error range, and the proportionality coefficient of the first PID control parameter is larger than that of the second PID control parameter. According to the method, the stability of hydrogen pressure is improved, so that the stability and the service life of the fuel cell system are improved.

The invention relates to a semi-supervised learning data anomaly intelligent identification and treatment system, which is applied to a hydrogen energy commercial vehicle, and comprises a data acquisition and preprocessing module, which is arranged on a vehicle-mounted terminal and is used for acquiring a hydrogen storage system signal, a hydrogen supply system signal, a fuel cell system signal and a whole vehicle system signal in real time, processing the acquired signal data; the semi-supervised anomaly recognition module is arranged on a cloud platform, is connected with the data acquisition and preprocessing module, and is used for fusing the processed signal data into a rule engine and semi-supervised learning, constructing a semi-supervised training data set, and performing deep auto-encoder model training through the data set so as to realize accurate anomaly recognition of few sample scene writing; and the exception treatment and feedback module is arranged at an edge node, is connected with the semi-supervised exception recognition module, carries out exception recognition through a trained model, carries out graded treatment according to the exception severity, and establishes a model evolution mechanism to realize continuous optimization of the system.

The invention discloses a hydrogen supply system suitable for a fuel cell, and relates to the technical field of hydrogen supply, the hydrogen supply system comprises a gas supply device and a controller, the gas supply device comprises a hydrogen production assembly, an oxygen storage tank, a hydrogen storage tank, a distribution assembly and a plurality of groups of power generation devices, the hydrogen production assembly is connected with the oxygen storage tank and the hydrogen storage tank, and the distribution assembly is connected with the controller. The oxygen storage tank and the hydrogen storage tank are connected with the distribution assembly, and the distribution assembly is connected with the multiple sets of power generation equipment, so that when the device is used, hydrogen can be prepared through the hydrogen production assembly so as to be supplied to the power generation equipment, and the power generation equipment can stably generate power; according to the oxygen and hydrogen generation device, the acid medium in the hydrogen production assembly can be automatically supplemented according to the content of the generated oxygen and hydrogen, so that electrolysis can be better carried out during electrolytic hydrogen production, power generation equipment can generate sufficient electric energy, and the whole power station can generate stable electric energy all the time.

Provided is a hydrogen storage material that has a TiFe-based alloy that exhibits an excellent durability, an excellent initial activation, and also a satisfactory hydrogen storage amount and satisfactory hydrogen storage / release characteristics. Also provided are: a hydrogen storage container provided with the hydrogen storage material; and a hydrogen supply device provided with the hydrogen storage container. The hydrogen storage material has an alloy with the prescribed element composition given by formula (1), wherein, in a 1000X COMP image of this alloy provided by EPMA of its cross section, an La-concentrated phase having a phase diameter of 0.1 μm to 10 μm is present at 10 to 3000 times in an 85 μm × 120 μm field of view in the COMP image. The hydrogen storage container is provided with this hydrogen storage material, and the hydrogen supply device is provided with this hydrogen storage container. (1): Ti(1-a-b)LaaM1bFecMndM2eCf

A low-carbon economic dispatching method for a combined cooling, heating, power and hydrogen supply type comprehensive energy system comprises the steps that firstly, a combined cooling, heating, power and hydrogen supply type comprehensive energy system model is established in a simulation platform, then a comprehensive energy multi-target optimization dispatching model based on stepped carbon transaction is established, and finally an optimization dispatching solving method for the combined cooling, heating, power and hydrogen supply type comprehensive energy system is established. According to the invention, a high-efficiency and low-carbon comprehensive energy system transaction mechanism is realized, a hydrogen energy multi-element utilization structure is introduced to form a combined cooling, heating, power and hydrogen supply type comprehensive energy system, and the reliability and flexibility of the system are improved; a stepped carbon transaction mechanism is introduced, so that the enthusiasm of a subject to participate in the carbon market and the decarburization and emission reduction level of the system are improved; according to the method, the solution of the particle swarm algorithm is improved, the solution efficiency of the algorithm is improved, and a more flexible and quicker optimization strategy is provided for real-time scheduling of the system.

The invention provides a fuel cell hydrogen supply control method, a fuel cell hydrogen supply control device and a fuel cell system, and relates to the technical field of fuel cell starting control, the method is used for a hydrogen supply control process of the fuel cell system, and the method does not need to additionally arrange a temperature sensor for a hydrogen proportional valve. Therefore, the duty ratio of the hydrogen proportional valve can be compensated in the low-temperature scene, the hydrogen supply control logic is simplified, and the problems that in the prior art, the cost is too high, and the control strategy is tedious are solved.

The invention discloses a dual-fuel engine combustion control method based on hydrogen-ammonia energy ratio and gas distribution overlap angle regulation and control, which comprises the following steps: 1) fuel ratio control: acquiring current operation state parameters of an engine, determining a target AER according to preset mapping, regulating ammonia gas supply quantity and hydrogen supply quantity to enable the actual AER to reach the target AER, and controlling the fuel ratio; the AER is adaptively set according to engine load and combustion stability conditions; 2) valve timing control: adjusting the opening time of an intake valve or the closing time of an exhaust valve through a variable valve timing mechanism so as to change a valve timing overlap angle VOA, wherein the VOA is set to be a negative value, a small overlap angle or a positive overlap angle according to the working condition of an engine; (3) injection time sequence optimization is conducted, specifically, the injection time of ammonia gas and the in-cylinder direct injection time of hydrogen are controlled respectively, and coordinated optimization of a fuel injection strategy and valve timing is achieved; and 4) closed-loop steady-state control: monitoring a combustion state and an emission index in real time, comparing the combustion state and the emission index with a threshold value to serve as a feedback signal, and correcting the target AER and VOA settings in time. According to the dual-fuel engine combustion control method based on regulation and control of the hydrogen-ammonia energy ratio and the gas distribution overlapping angle, the energy ratio of hydrogen fuel and ammonia fuel and the overlapping opening angle of an intake valve and an exhaust valve are dynamically adjusted under different working conditions, so that the combustion reaction rate and temperature are coordinated, and the stable and efficient combustion process is achieved; and harmful emissions of NOx, unburned ammonia and the like are obviously reduced.

The invention relates to the technical field of hydrogen energy, in particular to a non-catalytic solid hydrogen storage material hydrogen release system and application thereof. The water storage unit is connected with the PEM hydrogen fuel cell reaction unit through a first pipeline; the non-catalytic hydrogen release unit is connected with the water storage unit through a second pipeline; a flow pump and a first electromagnetic valve are arranged on the second pipeline; the first electromagnetic valve is jointly controlled by a pressure sensor and a first flow controller; and the hydrogen buffer unit is connected with the non-catalytic hydrogen release unit and the PEM hydrogen fuel cell reaction unit through a third pipeline and a fourth pipeline respectively. The quick response and efficient hydrogen supply effects of the system are realized by utilizing the characteristic that the non-catalytic solid hydrogen storage material quickly releases hydrogen at a second level under the conditions of near room temperature and low pressure; wastewater generated by the PEM hydrogen fuel cell reaction unit is used as a reaction reagent of the non-catalytic hydrogen release unit, so that water circulation is realized, the amount of water initially carried by the system is reduced, and the weight of the system is reduced.

The invention belongs to the technical field of functional sugar alcohol hydrogenation, and particularly relates to a system and a method for intelligently controlling a reaction kettle in a functional sugar alcohol hydrogenation process. Comprising a temperature sensor TT, a pressure sensor PT, a liquid level sensor LT, a hydrogen concentration sensor TZT and a spectrum sensor, and the sensor networks are arranged on a reaction kettle body, a feeding pipeline, a condenser and a hydrogen recovery device. The device is used for collecting temperature, pressure, liquid level and hydrogen concentration in the reaction kettle and spectral data of an outlet sugar alcohol product in real time. The control execution layer comprises a PLC (Programmable Logic Controller), a dynamic valve controller, temperature control equipment and a stirrer speed regulation module; and the dynamic valve controller is connected to the hydrogen supply pipeline and the feeding pump. The hydrogen flow, the temperature and the stirring speed are adjusted in real time through AI dynamic optimization, the sugar alcohol conversion rate is increased to 5%, and the conversion rate fluctuation range is reduced to + / -0.5%.

The invention provides a multi-stack parallel controllable fuel cell system, a stack closing control method and a vehicle, and belongs to the technical field of fuel cells. The system comprises a galvanic pile module, a high-voltage power module, a single switch module, an air supply module, a hydrogen supply module and a thermal management module, the galvanic pile module comprises a plurality of galvanic piles which are electrically connected in parallel, and the positive electrode end of each galvanic pile is connected with the positive electrode end of the high-voltage power module to form an electrical circuit; the single switch module comprises a single switch unit configured for each galvanic pile, and the single switch unit comprises a relay switch and a unilateral diode which are arranged on an electrical circuit related to the positive end of the galvanic pile; the system further comprises a first electromagnetic valve module used for controlling the air supply module to independently provide air for the multiple electric piles, a second electromagnetic valve module used for controlling the hydrogen supply module to independently provide hydrogen for the multiple electric piles, and a third electromagnetic valve module used for controlling the heat management module to independently provide cooling liquid for the multiple electric piles. The service life of the fuel cell system can be prolonged.