187 results about "Hydrogen system" patented technology

The invention relates to an electrolytic hydrogen safe operation boundary construction and application method and system based on dynamic characteristic identification, and electronic equipment. The method comprises the following steps: acquiring actually measured dynamic response data of an electrochemical device under a dynamic excitation working condition; identifying real dynamic characteristic parameters through a system identification algorithm based on actually measured dynamic response data to replace idealized dynamic setting to construct a high-fidelity security model with a coupling sub-model; a high-fidelity security boundary is obtained based on high-fidelity security model simulation; operating parameters are collected in real time and compared with the high-fidelity safety boundary, and an instantaneous risk component is calculated; when the instantaneous risk component exceeds a safety control threshold, a power limit instruction is generated to perform closed-loop limitation on the input power. According to the method, the limitation of a traditional steady-state model is broken through, the transient out-of-limit risk can be accurately predicted and intervened, and the intrinsic safety of the electrolytic hydrogen system under the fluctuation working condition is greatly improved.

The application provides a controllable hydrogen system and a controllable hydrogen method, and the controllable hydrogen system comprises a reactor, an aluminum conveying module, a sodium hydroxide conveying module, a water conveying module and a recovery module; the aluminum conveying module, the sodium hydroxide conveying module and the water conveying module are communicated with the reactor respectively; the reactor is provided with a first outlet and a second outlet; the recovery module comprises a diaphragm filter system, a first inlet of the diaphragm filter system is communicated with the first outlet of the reactor, the diaphragm filter system further comprises a third outlet, and the third outlet is communicated with the reactor; and the second outlet is used for conveying generated hydrogen. The controllable hydrogen method of the application utilizes the controllable hydrogen system to realize efficient controllable hydrogen, and utilizes the diaphragm filter system to recycle by-products and sodium hydroxide, so that the utilization rate of resources is improved.

This application discloses a water electrolysis hydrogen production system, relating to the field of hydrogen production technology. The system includes an electrolyzer and separators. Each electrolysis product flow path is equipped with a first separator, and at least in the first electrolysis product flow path, a second separator is located downstream of the first separator. One separator in the first electrolysis product flow path is connected to one separator in the second electrolysis product flow path via a liquid-conducting pipe. The first and second separators in the same electrolysis product flow path are connected via a liquid-conducting pipe and a gas-conducting pipe. The electrolysis products from the first separator flow to the second separator via the gas-conducting pipe. The outlet of the gas-conducting pipe and the top and bottom walls of the second separator are spaced apart. The system also includes a level regulating device for adjusting the level of the first separator in the second electrolysis product flow path. This application's technical solution improves the operational stability of the water electrolysis hydrogen production system.

The present application relates to hydrogen energy vehicle technology field, specifically to a kind of hydrogen supply system and hydrogen supply method.The hydrogen supply system includes control valve group, controller and mutually independent first hydrogen supply branch and second hydrogen supply branch;First hydrogen supply branch includes first hydrogen inlet and the first hydrogen bottle group connected in the export end of the first hydrogen inlet, and second hydrogen supply branch includes second hydrogen inlet and the second hydrogen bottle group connected in the export end of the second hydrogen inlet;Controller is electrically connected with control valve group, and control valve group is connected between first hydrogen supply branch and second hydrogen supply branch.In hydrogenation mode, control valve group is disconnected under the control of controller;In hydrogen supply mode, control valve group is turned on under the control of controller, to make first hydrogen bottle group and second hydrogen bottle group jointly supply hydrogen to fuel cell system;And, in hydrogen supply mode, when controller receives signal indicating that any hydrogen supply branch fails, controller controls control valve group to isolate the branch where the fault is, and maintains hydrogen supply by unfailed branch.

The application discloses an electrolytic cell assembly and a water electrolysis hydrogen production system, and relates to the technical field of electrolysis, wherein the electrolytic cell assembly comprises an electrolytic cell and a flow guide structure, the electrolytic cell comprises a plurality of polar plates arranged along a first direction, the plurality of polar plates are formed with a plurality of flow guide channels and a plurality of flow guide openings, the plurality of flow guide channels are arranged at intervals along the first direction, one flow guide opening is in communication with one flow guide channel in a corresponding manner, the flow guide structure is arranged outside the electrolytic cell, the flow guide structure is formed with an extension channel, the extension channel is in communication with at least two flow guide openings, so that the corresponding flow guide channels are in communication, the plurality of polar plates comprise at least two connecting polar plates, two adjacent connecting polar plates are connected to a positive electrode and a negative electrode of a power supply respectively, and at least two adjacent connecting polar plates have at least two flow guide channels in communication through the extension channel. The technical scheme provided by the application aims to reduce the bypass current of the flow guide channel and the loss thereof, so as to improve the efficiency of the electrolytic cell.

The application discloses a hydrogen production system and belongs to the technical field of hydrogen production by water electrolysis. The hydrogen production system is applied to hydrogen production by water electrolysis and comprises at least one electrolytic tank, a circulating assembly, a gas-liquid separator and an electrolyte buffer, wherein the outlet of the circulating assembly is connected with the liquid inlet of the electrolytic tank; the inlet of the gas-liquid separator is connected with the outlet of the electrolytic tank; the inlet of the electrolyte buffer is connected with the outlet of the electrolytic tank; wherein the inlet of one of the gas-liquid separator and the electrolyte buffer is communicated with the outlet of the electrolytic tank, and the liquid return inlet of the gas-liquid separator and the outlet of the electrolyte buffer are both connected with the inlet of the circulating assembly. In the technical scheme, the electrolyte circulating loop, which is communicated with the gas-liquid separator and the electrolyte buffer, is constructed, so that useless work of a multiple-electrolytic-tank system in parallel connection during start-up can be reduced, the product quality of hydrogen production is helped to be enhanced, and the adaptability of the system to a wide power under new energy power input is helped to be enhanced.

This invention relates to the field of hydrogen purification technology, specifically to a hydrogen purification device, a hydrogen production system, and a method of use. A hydrogen purification device includes: an adsorption assembly comprising a first adsorption tower and a second adsorption tower, the first and second adsorption towers being adapted to dehydrate and dry incoming hydrogen gas; and a pipeline assembly comprising a main inlet pipe, a first inlet branch pipe, and a second inlet branch pipe, the main inlet pipe being adapted to allow the flow of hydrogen gas to be dried, one end of the first inlet branch pipe being connected to the main inlet pipe and the other end being connected to the first adsorption tower, and one end of the second inlet branch pipe being connected to the main inlet pipe and the other end being connected to the second adsorption tower. This invention provides a hydrogen purification device, a hydrogen production system, and a method of use to solve the problems of existing hydrogen purification devices, where the drying unit mostly adopts a TSA three-tower process, which involves cumbersome pipeline layout, complex program control, and high cost.

This application discloses an electrode plate, a preparation method, an electrolyzer, and an electrolytic hydrogen production system, belonging to the field of water electrolysis for hydrogen production. The electrode plate, having N flow channel holes, includes: a main body comprising a first region and a second region surrounding the first region; and a flexible layer covering the second region. The flow channel holes penetrate the flexible layer, and a plurality of flow channel grooves are formed on the flexible layer, with each end of the flow channel grooves connecting the flow channel holes and the first region, respectively. By covering the main body with a flexible layer to form an integral electrode plate structure, the sealing structure of the flexible layer between two electrode plates mutually seals and improves sealing performance. The electrode plate is reusable, lightweight, not prone to sagging, corrosion-resistant, and low in cost.

This invention discloses a method for optimizing the operation of a wind-solar hydrogen production system based on hierarchical verification deep reinforcement learning, belonging to the field of new energy hydrogen production system operation optimization technology. The method includes: collecting environmental and equipment information to construct a system state vector; establishing a multi-agent framework based on the soft actor-critic algorithm, defining the energy storage battery and electrolyzer as independent agents, and outputting control commands through continuous-discrete hybrid actions. Before execution, a Level I safety verification is performed, and the state is updated after passing; a fusion reward is calculated based on the new state using a global-local fusion reward mechanism. State samples are stored in an experience buffer for network parameter updates. During training, a Level II model performance verification is periodically performed, and qualified models are included in the candidate set; after training, a Level III deployment verification is performed, and the optimal model is selected for use in the actual system. This invention improves the operational efficiency, equipment lifespan, and system deployment reliability of wind-solar hydrogen production systems under fluctuating environments.

The application discloses a hydrogen network optimization method and system based on a Gaussian process regression agent model, and belongs to the field of petroleum chemical process system engineering and technology.The method first constructs Gaussian process regression agent models of desulfurization, denitrogenation and dearomatics reaction kinetics for different hydrogenation devices, respectively, to accurately predict hydrogen consumption and product impurity content with operating temperature and pressure as input;then embeds the agent models of the devices into a hydrogen network optimization model to establish an integrated optimization problem of minimum total annual cost;finally, solves the optimization problem by using an improved differential evolution algorithm combined with a three-stage search strategy of global exploration-local development-convergence verification to obtain optimal operating parameters.The application shortens the optimization calculation time to about 90 seconds, solves the solving difficulty of traditional methods coupled with complex kinetics, realizes collaborative optimization of hydrogenation operation and hydrogen network operation while ensuring product quality, reduces hydrogen consumption and total annual cost of the system, and significantly improves the economic benefit and operation efficiency of the hydrogen system of a refinery.

The application relates to the technical field of hydrogen production system operation, in particular to a seawater hydrogen production system stable operation method under variable load conditions, which comprises the following steps: taking voltage minimization and maximum decay rate as double targets, generating a primary standby power supply group and a secondary state monitoring group through a Pareto stratification; monitoring whether the terminal voltage of the current primary standby power supply group reaches the saturation upper limit or whether the terminal voltage of the secondary state monitoring group falls below the critical early warning upper limit, serving as a one-way trigger event to execute a polling handover of the power supply state for electrical scheduling; in the electrical scheduling process, the remaining capacity of the standby battery and the residual gas pressure of the gas-liquid separator are synchronously monitored, and a system hibernation protection mechanism is triggered to terminate the electrical scheduling. The application solves the problems of switch high-frequency burning and emptying backflow caused by inaccurate prediction under variable load shutdown, and improves the stability of seawater hydrogen production system operation.

This utility model discloses an integrated high-efficiency heat exchange solid-state hydrogen storage system, relating to the field of solid-state hydrogen storage technology. It includes a hydrogen storage core module, a heat exchange circulation module, and a pressure control module. This integrated high-efficiency heat exchange solid-state hydrogen storage system utilizes a spiral heat exchange tube bundle tightly fitted to the outer wall of the hydrogen storage container, greatly increasing the heat exchange area and significantly improving heat exchange efficiency. This effectively solves the temperature control problem caused by thermal effects during hydrogen absorption and desorption of solid-state hydrogen storage materials. The built-in electric heating element actively provides the heat required for desorption, ensuring the stability and speed of the hydrogen release process. The pressure control module can accurately stabilize the inlet pressure, avoiding the impact of pressure fluctuations on the hydrogen storage material and improving system safety. Simultaneously, the system has high integration and a compact structure, enhancing protection capabilities. Through uniform hydrogen flow and efficient thermal management, it comprehensively improves hydrogen storage density, hydrogen charging and discharging rates, and system operational stability.

This invention discloses a multi-source thermally coupled electrolytic hydrogen production long-term thermal standby system and control method, belonging to the field of electrolytic hydrogen production technology. In this invention, the alkali solution in the alkali solution circulation loop of the electrolytic hydrogen production module exchanges heat with the circulating medium flowing through the first heat exchange unit and then returns to the electrolytic cell; the circulating medium flows back to the heat storage tank; a new energy auxiliary heating module and an electric-driven heat pump module are used to heat the circulating medium; an intelligent control module is connected to a first temperature sensor signal used to monitor the alkali solution temperature, and is used to control the operation of the circulating medium in the circulation pipeline according to the monitored temperature when the electrolytic cell is running; after the electrolytic cell is shut down, the new energy auxiliary heating module and / or the electric-driven heat pump module are controlled to start and stop according to the monitored temperature; before the electrolytic cell is started, the new energy auxiliary heating module and / or the electric-driven heat pump module are controlled to heat the circulating medium. This invention solves the problems of low energy efficiency and slow start-up in electrolytic hydrogen production systems, and comprehensively improves energy efficiency and start-up response speed.

The present application relates to a kind of three valve combined intelligent control method based on fuel cell membrane moisture content, it relates to fuel cell control technical field, for the unstable operation phenomenon caused by hydrogen pressure fluctuation, flow mismatch and membrane moisture content imbalance of fuel cell, specifically provide a kind of three valve combined intelligent control method based on fuel cell membrane moisture content, method includes: based on artificial neural network model, membrane moisture content is predicted and valve opening is corrected;Current hydrogen pressure fluctuation value in hydrogen discharge process of hydrogen system is obtained, and valve is again fine-tuned using PID control mode, realizes the self-adaptive regulation of system under all operating conditions and decoupling control under multiple outputs, finally achieves the purpose of hydrogen accurate supply and stack stable operation.

This application discloses a planning method, system, equipment, medium, and product for a new energy hydrogen production system based on multi-timescale risk quantification, relating to the field of new energy hydrogen production technology. The method includes: constructing a new energy hydrogen production system; constructing an operational model; constructing a risk quantification model; acquiring hourly predicted and historical power generation data of the new energy generator units; calculating the prediction error based on the predicted and historical power generation data; constructing constraints based on the operational model and the prediction error; constructing a planning mathematical model for the new energy hydrogen production system considering multi-timescale risks based on the constraints and the risk quantification model; and solving the planning mathematical model for the new energy hydrogen production system considering multi-timescale risks under the constraints, with the objective of minimizing the annual comprehensive risk level, to obtain the optimal planning scheme. This application improves the safety and reliability of the new energy hydrogen production system.

The utility model discloses a same side heat exchange hydrogen production system with air cooling and waste heat recovery system belongs to hydrogen production system technical field, including high pressure steam pipeline, high pressure steam pipeline one end is connected outside steam source, and the other end is connected gas mixer, anode entrance connects air heater, and air heater connects anode heat exchanger, and the first medium side one end of anode heat exchanger is connected air heater, and the other end is connected cathode cooler. Through the external supply water vapor, need not set up steam generator in the system, through the cathode tail gas, anode tail gas carries out two step preheating to air, reduces the load of air heater, and the heat of cathode tail gas reduces also can reduce the load of condenser after cathode tail gas passes two step heat exchange, part cathode tail gas is introduced into hydrogen production system again, can guarantee having hydrogen in mixed gas again, can introduce part water vapor, reduces the supply amount of external water vapor, has reduced energy loss as far as possible.

The application provides a residual cruising range estimation method based on equivalent operation conditions of a vehicle-mounted hydrogen system, comprising: extracting features of current operation data of a target hydrogen energy vehicle to obtain a current user behavior portrait; inputting the current user behavior portrait and a driving mode to which the current user behavior portrait belongs into a pre-trained time series prediction model to obtain a predicted driving mode at a next time; reconstructing the predicted driving mode according to historical operation data corresponding to each driving mode to obtain reconstructed operation data under the predicted driving mode; determining feature behavior hydrogen consumption under the reconstructed operation data according to a mapping relationship between the reconstructed operation data and operation conditions and hydrogen consumption which is pre-constructed; and calculating a residual cruising range according to the feature behavior hydrogen consumption under the reconstructed operation data in a prediction time interval and a current residual hydrogen storage amount of the target hydrogen energy vehicle. The scheme introduces multi-dimensional user behavior to obtain reconstructed operation data more in line with the user driving style, thereby predicting the residual cruising range based on the reconstructed operation data, and improving the prediction accuracy and reliability.

The present application relates to a kind of hydrogenation process fuel cell vehicle control method and system, belong to new energy technology field.Add hydrogen judgment logic is through the hydrogen pressure periodically collected by hydrogen system, the pressure rise rate in specific time period is calculated, and the residual hydrogen mass rise rate is calculated according to temperature and pressure by gas state equation, simultaneously satisfy the condition of exceeding pressure rise rate threshold and residual hydrogen mass rise rate threshold, and vehicle is at safe speed, judge vehicle is in hydrogenation state, and vehicle control is cut off high voltage electricity.Avoid setting independent sensor switch in hydrogenation hatch, reduce cost, while it can avoid the unexpected parking safety risk caused by hydrogenation hatch abnormal opening under the harsh operating condition of fuel cell heavy truck.

This application discloses a hydrogen purification system and an electrolytic hydrogen production system, relating to the field of electrolytic hydrogen production technology. The hydrogen purification system includes a drying unit, a gas supply unit, and a heat exchange unit. The drying unit includes at least two drying towers, each surrounded by a jacket. The jacket and the outer periphery of the drying tower form a heat exchange cavity. The drying unit also includes an exhaust pipe connecting the at least two drying towers. The gas supply unit includes a gas supply pipe connected to the at least two drying towers. The heat exchange unit is connected to the heat exchange cavities of the at least two drying towers, and is used to supply a heat exchange medium to the heat exchange cavity of any of the drying towers to heat or cool them. The technical solution provided by this application aims to reduce the energy consumption and safety hazards of the hydrogen purification system, and improve the economy and reliability of the electrolytic hydrogen production system.

The application discloses a kind of electrolytic seawater hydrogen production system health state detection method, device and equipment, it is related to equipment state detection field, the method includes: obtaining the multi-modal data set of electrolytic seawater hydrogen production system;According to multi-modal data set, neural network model is trained, and pre-training neural network model is obtained;Neural network model includes multiple single modal feature extraction module, feature fusion module, projection module and prediction module;According to unlabeled multi-modal operation data, pre-training neural network model is optimized using self-supervised contrast learning method, and the pre-training neural network model after optimization is obtained;According to the real-time multi-modal operation data of electrolytic seawater hydrogen production system, the real-time health state of electrolytic seawater hydrogen production system is determined using the pre-training neural network model after optimization.The application realizes the precise evaluation of electrolytic seawater hydrogen production system health state in whole life cycle under the condition of only a small amount of labeled data or even no abnormal sample.

This application relates to a method for optimizing the operation of a photovoltaic hydrogen production system based on Stackelberg game theory, relating to the field of hydrogen production technology. The method mainly includes the following steps: S1, constructing a Stackelberg game model; S2, inputting the current grid purchase price and grid sales price into the Stackelberg game model in step S1 to obtain the photovoltaic hydrogen production system operation strategy, which includes the system purchase price and system sales price; S3, calculating the net load based on the operation strategy output in step S2, comparing the net load with the net purchase price threshold and net sales price threshold, and adjusting the operation strategy; S4, performing convergence determination on the operation strategy output in step S3, including profit convergence determination and electricity price convergence determination; if the convergence determination is satisfied, the loop ends and the operation strategy is output; if the convergence determination is not satisfied, the process returns to step S2 for operation strategy optimization; if the number of iterations reaches the iteration threshold, the iteration terminates and the operation strategy is output.

The present application relates to the technical field of vehicle-mounted hydrogen system safety, and discloses a hydrogen leakage detection and positioning method and system for a fuel cell vehicle-mounted hydrogen system, which comprises establishing a preset candidate leakage source set, collecting concentration data of each hydrogen-sensitive sensor and wind field data of a wind speed and direction acquisition unit, forming a measured response vector at the same sampling time, calculating a predicted response vector of the candidate leakage source at each hydrogen-sensitive sensor, performing matching operation on the predicted response vector and the measured response vector, screening out a target candidate leakage source with a matching degree satisfying a preset condition, determining a target leakage position based on stability or convergence conditions of cumulative results, reading hydrogen-sensitive coating state information arranged at the target leakage position, and obtaining a final leakage position and corresponding alarm information. The present application can guide operation and maintenance personnel to quickly locate and handle the leakage point by accurately identifying the leakage source and generating alarm information, thereby reducing manual investigation time and operation and maintenance cost.

This invention relates to the field of new energy hydrogen production technology, specifically disclosing an optimized control method for an electrolyzer system based on photovoltaic power output prediction, comprising: S1: acquiring historical operating data of the photovoltaic system, and predicting the photovoltaic power output sequence within a preset time period based on a long short-term memory neural network model optimized by particle swarm optimization; S2: dividing the preset time period into a power increase phase and a power decrease phase according to the peak time of the photovoltaic power output sequence; S3: for the power increase phase, dividing the system into multiple first sub-intervals with a first preset period, calculating the average photovoltaic power output in each first sub-interval, and determining the lower limit of the number of electrolyzer arrays to be started in each first sub-interval; for the power decrease phase; the technical solution of this invention can solve the technical problems of frequent start-up and shutdown of electrolyzers, uneven equipment loss, and low photovoltaic absorption rate in existing photovoltaic hydrogen production systems.

The present application belongs to the technical field of environmental protection and solid waste resource utilization, and relates to a waste coal mine resource utilization system and method, which comprises a coal gangue pretreatment system, a dewatering water pretreatment system, a hydrogen production and storage system, a photovoltaic system and a soil remediation system; the coal gangue pretreatment system is connected with the hydrogen production and storage system and the soil remediation system respectively; the dewatering water pretreatment system is connected with the hydrogen production and storage system and the soil remediation system respectively; the photovoltaic system is connected with the hydrogen production and storage system; the present application realizes the resource utilization of waste and the production of clean energy at the same time, realizes the ecological remediation of waste coal mine, and has the characteristics of green, low carbon and resource comprehensive utilization.

The application discloses a hydrogen production system, which comprises a liquid supply mechanism and an electrolytic hydrogen production assembly. The liquid supply mechanism comprises a water inlet channel, a liquid storage tank, a main flow channel and a plurality of branch flow channels. The water inlet channel and the main flow channel are both communicated with the liquid storage tank, and each branch flow channel is communicated with the main flow channel. The electrolytic hydrogen production assembly comprises a plurality of electrolytic components, a plurality of hydrogen outlet channels and a plurality of backflow channels. Each electrolytic component is one-to-one communicated with each branch flow channel, each hydrogen outlet channel is one-to-one communicated with each electrolytic component, the first end of each backflow channel is one-to-one communicated with each electrolytic component, the second end of each backflow channel is communicated with the liquid storage tank, and each electrolytic component works independently. The hydrogen production system solves the problem that the hydrogen production system needs to be maintained after the whole machine is stopped in the prior art.

The invention belongs to the technical field of distributed direct current micro-grid hydrogen production system operation control, and discloses an off-grid hydrogen production system bus voltage fluctuation suppression and SOC balance control method and a medium, and the method comprises the following steps: 1, building a renewable energy hydrogen production system; step 2, collecting a charge state signal of the energy storage battery and an output voltage and an output current of the converter; step 3, obtaining a charge state average value and an output voltage average value according to the charge state signal, the output voltage and the output current; step 4, obtaining an SOC equalization coefficient according to the output current, the charge state signal and the charge state average value; and step 5, obtaining the duty ratio of the converter according to the average value of the output voltage and the SOC equalization coefficient, and obtaining a driving signal of a converter power tube through PWM (Pulse-Width Modulation). A droop-free control framework is adopted, a control instruction is directly generated through a consistency algorithm and a local signal, the defects of traditional droop control are avoided, and the dynamic response speed and the control precision of the system are improved.

This invention relates to the field of chemical loop hydrogen production technology from semi-coke tail gas, particularly to a multi-zone coupled internal circulation fluidized bed reactor, a semi-coke tail gas hydrogen production system and method. By incorporating three inclined trays within the reactor body, the reactor is divided into an air complete re-oxidation zone, a semi-coke tail gas reduction zone, and a steam oxidation hydrogen production zone. A riser is added to increase the steam-lifted secondary oxidation zone, achieving multi-zone coupling within the same reactor. The semi-coke tail gas reduction zone reduces the oxygen carrier; the steam oxidation hydrogen production zone oxidizes the reduced oxygen carrier to produce hydrogen; the steam-lifted secondary oxidation zone supplements the unreacted oxygen carrier with oxidation and fluidizes it to the air complete re-oxidation zone; and the air complete re-oxidation zone recycles the oxygen carrier, achieving continuous hydrogen production from semi-coke tail gas through chemical looping. This solves the problems of difficult particle-ordered circulation control, insufficient contact time between oxygen carrier particles and the gas phase, and difficulty in continuous and stable hydrogen production in existing semi-coke tail gas chemical loop hydrogen production methods.

This invention discloses a pressurized heat exchange hydrogen supply device and method for a solid-state hydrogen storage system, relating to the field of solid-state hydrogen storage technology. The device includes: a filter for filtering hydrogen output from the solid-state hydrogen storage system; a first hydrogen booster for increasing hydrogen pressure to a target range; a first heat exchanger for reducing the pressurized hydrogen to a preset temperature range; a regulating valve for regulating hydrogen flow rate; and a pressure transmitter, temperature transmitter, and flow meter for measuring hydrogen pressure, temperature, and flow rate, respectively. A PLC dynamically adjusts the operating status of the first hydrogen booster, the opening of the regulating valve, and controls the start and stop of the first heat exchanger. This invention integrates the pretreatment unit, the pressurized heat exchange unit, and the flow regulation unit into a single unit. It employs an automatic control system with a PLC controller at its core, combining the real-time acquisition of outlet parameters by the temperature transmitter, pressure transmitter, and flow meter to dynamically adjust the opening of the flow regulating valve, achieving constant control of the output pressure or flow rate.

This invention proposes an alkaline water electrolysis hydrogen production system. The alkaline water electrolysis hydrogen production system includes: an electrolyzer with a hydrogen outlet; and a hydrogen separator with a gas-liquid mixture inlet and a gas outlet. The gas-liquid mixture inlet is connected to the hydrogen outlet of the electrolyzer via a first pipe, and the gas outlet is connected to a first outlet pipe for supplying hydrogen gas. The alkaline water electrolysis hydrogen production system further includes a refrigeration system disposed at the first outlet pipe. The refrigeration system includes a compressor, a condenser, an expansion valve, and an evaporator connected sequentially in a closed system via pipes. A refrigerant circulates within the closed system. The first outlet pipe is connected to a second heat exchanger, and the evaporator of the refrigeration system is disposed in the second heat exchanger and configured to absorb heat from the hydrogen. The alkaline water electrolysis hydrogen production system according to the invention includes a refrigeration system located at the outlet pipe, which is capable of further cooling the generated hydrogen.

The present disclosure relates to a hydrogen supply system for a vehicle and a truck, the hydrogen supply system comprising: a mounting frame configured to be connected to a vehicle frame; and hydrogen storage cylinders vertically arranged on the mounting frame, wherein a plurality of the hydrogen storage cylinders are arranged in an arc shape along a width direction of the vehicle frame, and projections of the hydrogen storage cylinders at both ends of the arc shape in a length direction and the width direction of the vehicle frame partially overlap with adjacent hydrogen storage cylinders. The hydrogen storage cylinders are vertically mounted on the mounting frame without being mounted layer by layer upwards, and are convenient to mount and dismount. The hydrogen storage cylinders are arranged in an arc shape, which reduces the space occupied by the hydrogen storage cylinders in the length and width directions of the vehicle, improves the space utilization, and effectively avoids the outer envelope of the rotation of the vehicle cabin in the driving direction of the vehicle, reduces the reserved mounting space in the driving direction of the vehicle, and improves the space for carrying goods of the vehicle.