29results about How to "Improve hydrogen production efficiency" patented technology

The application discloses a water electrolysis system configuration optimization method and platform based on multi-source data collaborative calculation, comprising the following steps: collecting multi-dimensional operation parameters of electrolytic cells, gas-liquid separators and other equipment through a cross-domain data collaborative processing system and transmitting in real time, calling a water electrolysis multi-field coupling simulation model to dynamically simulate an operation state, combining a guided matrix incremental updating algorithm to iteratively adjust configuration parameters, calculating equipment matching through a load adaptation model to determine a configuration feasible region, establishing a mapping relationship between parameters and the operation state through multi-source data cross verification, performing multi-round screening on schemes in the feasible region and dynamically adjusting equipment grouping, connection modes and linkage logic, and finally determining an optimized configuration scheme adapting to different scenes; the platform realizes a closed loop of data acquisition, simulation operation, parameter updating, scheme optimization and execution landing through orderly linkage of six functional units, and guarantees efficient and stable operation of the device under complex working conditions.

The application provides an electrolysis chamber of a proton exchange membrane electrolyzer and the proton exchange membrane electrolyzer. The electrolysis chamber of the proton exchange membrane electrolyzer comprises: bipolar plates, sealing rubber lines, anode diffusion layers, proton exchange membrane assemblies, cathode diffusion layers, sealing rubber lines and bipolar plates which are sequentially stacked; the side of the bipolar plate facing the proton exchange membrane assembly is provided with a groove; the side of the sealing rubber line facing the bottom of the groove is provided with a first inclined surface; the bottom of the groove is provided with a booster part; the side of the booster part facing the sealing rubber line is provided with a second inclined surface; and the second inclined surface is in close contact with the first inclined surface. The friction between the sealing rubber line and the bipolar plate in the electrolysis chamber of the proton exchange membrane electrolyzer is large, so that the pressure resistance grade of the electrolyzer is improved, the sealing effect of the sealing rubber line in different environments is ensured, the electrolyzer can withstand a pressure of up to 7MPa, and the hydrogen production efficiency and safety are improved.

This invention discloses a middle plate, an electrode chamber assembly, and an electrolytic hydrogen production device. The middle plate includes a body and a circulation plate. The body is integrally stamped from a metal plate. An S-shaped annular sealing channel is stamped around the perimeter of the body surface. Several first protrusions and second protrusions are stamped on two surfaces of the body inside the annular sealing channel. The circulation plate is inclined and fixedly connected to the first protrusions. The circulation plate is disposed within the annular sealing channel, and the distance between its top edge and the body surface is less than the distance between its bottom edge and the body surface. The electrode chamber assembly is assembled using the aforementioned middle plate, and the electrolytic hydrogen production device utilizes the aforementioned electrode chamber assembly. This invention provides excellent sealing performance. The stamped structure integrating the anode and cathode chambers and the middle plate effectively reduces leakage points and lowers the risk of external leakage. Furthermore, it reduces spot welding processes, lowers internal contact resistance, and thus reduces the energy consumption of the electrolyzer. The above structure is rationally configured and easy to install.

The application discloses an electrolysis water self-supporting catalyst and a preparation method and application thereof, and the preparation method comprises the following steps: selecting carbonized wood as a substrate, placing the carbonized wood into a metal salt solution, and adopting an electrochemical deposition technology to in-situ electrodeposition of transition metals on the carbonized wood to obtain a precursor of metal and carbonized wood hybrid; and co-pyrolyzing the precursor and melamine, so that metal nanoparticles are coated in nitrogen-doped carbon nanotubes and in-situ grown on the carbonized wood to obtain the electrolysis water self-supporting catalyst, and the whole preparation process is simple and easy to control, and the prepared electrolysis water self-supporting catalyst has a three-dimensional hierarchical porous structure, high conductivity and good catalytic activity and stability, and can be used for industrial current density electrolysis water hydrogen production.

The invention discloses a nano porous nickel electrocatalyst material as well as a preparation method and application thereof. Belongs to the technical field of electrolyzed water hydrogen production catalysts. According to the method, a nickel net substrate is subjected to pretreatment, electrogalvanizing, high-temperature alloying and chemical dealloying, and finally the nano-porous nickel electrocatalyst material growing on the nickel net is obtained. The electrocatalyst material prepared by the method has a uniform three-dimensional nano porous structure, the thickness of a porous layer is 10-70 [mu] m, and the aperture is 100-500 nm. As an alkaline electrolytic water hydrogen evolution reaction cathode catalyst, the material has high specific surface area and rich active sites, and shows lower overpotential and excellent long-term stability. The method is simple in technological process, raw materials are easy to obtain, and the method has large-scale production potential and has wide application prospects in the field of hydrogen production through water electrolysis.

This invention discloses a process for in-situ decarbonization of oily sludge using autocatalytic gasification of sintering circulating flue gas to produce hydrogen-rich gas, which is then reinjected into the sintering machine. The core innovation of this process lies in the fact that it eliminates the need for additional catalysts and carbon-fixing agents. It directly utilizes the metal oxides contained in the ash of the oily sludge as an autocatalyst and the calcium-based components as a carbon-fixing agent. Using sintering circulating flue gas as the gasification medium, under reaction conditions of 500-900℃, the autocatalytic gasification of the oily sludge and in-situ carbonization of CO2 are simultaneously achieved, thereby producing high-purity hydrogen-rich gas. This hydrogen-rich gas is then reinjected into the sintering machine, replacing fossil fuels in sintering production. Simultaneously, the iron- and calcium-rich residue generated after the reaction is recycled back into the ore and used as sintering raw material in the sintering process, realizing the resource recovery of valuable elements. This invention effectively achieves waste resource utilization, process decarbonization, and energy cascade utilization, significantly reducing the total carbon emissions and production operating costs of the sintering process.

This invention discloses a method and system for hydrogen production using recycled PET waste and wastewater, belonging to the field of hydrogen production technology. The method involves immersing the lower half of a microreactor with a three-dimensional porous structure into an alkaline PET depolymerization solution. The alkaline PET depolymerization solution is made from PET waste, wastewater, and an alkaline catalyst. Utilizing the photothermal conversion capability of the microreactor under illumination, the solution is driven upwards to the high-temperature upper half of the microreactor, where vigorous evaporation occurs, producing water and ethylene glycol. The alkaline catalyst is concentrated, precipitated, and participates in catalysis at the evaporation interface. The mixed steam undergoes a KOH catalytic reforming reaction in the high-temperature zone of the microreactor to produce hydrogen. The water vapor is condensed and recovered, and the alkaline catalyst is directly collected. The alkaline catalyst achieves in-situ regeneration and recycling, and absorbs carbon emissions generated during the reaction, achieving zero pollution and high-purity hydrogen production. This invention achieves green energy hydrogen production and plastic degradation through an integrated design of alkaline degradation, alkaline catalysis, and alkaline recovery.

The application discloses a hydrogen production device, and relates to the technical field of hydrogen production.The hydrogen production device comprises an electrolytic cell, a gas-liquid separation device and a purification device connected in sequence, wherein the separation device comprises a first separation device and a first post-stage separation device; the hydrogen production device further comprises a heat exchange device, the heat exchange device has a first flow channel and a second flow channel arranged in a heat exchange mode, one end of the first flow channel is connected with a gas outlet of the first post-stage separation device, and the other end of the first flow channel is connected with a gas inlet of the purification device; one end of the second flow channel is connected with a gas outlet of the first separation device, and the other end of the second flow channel is connected with a gas inlet of the first post-stage separation device; or one end of the second flow channel is connected with a liquid backflow port of the first separation device, and the other end of the second flow channel is connected with a liquid inlet of the electrolytic cell. The technical problem of long heating time required by the purification device is solved.

The utility model discloses a system for reforming hydrogen from natural gas. The system comprises a desulfurizing tower, a steam mixer, a preheater, a reforming reactor, a water-gas conversion tower, a cooling tower, a gas-liquid separator, a carbon dioxide absorption tower and an adsorption tower which are sequentially connected through gas pipelines, a booster pump, a pressure control valve and an emergency cut-off valve are arranged on the upstream gas pipeline of the desulfurization tower; a regulating valve is arranged between the desulfurizing tower and the steam mixer; a temperature control valve and a high-temperature switching valve are arranged between the reforming reactor and the water-gas conversion tower; a purified gas control valve is arranged between the carbon dioxide absorption tower and the adsorption tower, and a product hydrogen outlet valve is arranged at the downstream of the adsorption tower; the system further comprises a carbon dioxide capturing pipeline connected with the carbon dioxide absorption tower, the carbon dioxide capturing pipeline is provided with a regeneration tower and a carbon dioxide compressor, and one end of the carbon dioxide capturing pipeline is connected with a liquid carbon dioxide storage tank. The whole system is simple and reasonable, the production cost is relatively low, carbon capture can be achieved, and the system is more environmentally friendly.

The application discloses a system and method for solar oxidation degradation of organic wastewater and hydrogen production, and the whole system comprises a membrane separation subsystem, a solar heat collection subsystem and a multi-electrode reverse electrodialysis subsystem. The system takes solar energy as a driving force, takes high-salt organic wastewater as a working solution, realizes hydrogen production and organic matter degradation by means of a concentration difference of the working solution, separates the high-salt organic wastewater into high-salt wastewater and organic wastewater, and realizes effective utilization and efficient degradation of the high-salt organic wastewater by combining solar energy and reverse electrodialysis. That is, the system can completely mineralize the organic matter in the wastewater and produce high-purity hydrogen, and realizes efficient and high-quality utilization of solar energy.

The application discloses a kind of configuration optimization method, device and system of integrated hydrogen production system, belong to hydrogen production technical field, the integrated hydrogen production system configuration optimization method provided by the present application, the two-stage configuration model of integrated hydrogen production system considering the uncertainty of photovoltaic output and biomass water content is established, the objective function is set as the minimization of investment cost and the operating cost of the worst scenario corresponding to the uncertainty set;Solve the above two-stage configuration model to obtain the optimized configuration scheme, thereby improving the robustness of configuration to ensure smooth hydrogen production.The scheme can ensure smooth hydrogen supply while meeting the system carbon emission requirements under photovoltaic, biomass access, reduce system component investment.In addition, the technical parameters involved therein relate to hydrogen production components and energy storage components, and the key parameters affecting the configuration results of system hydrogen production and energy storage can be subjected to sensitivity analysis.

The application discloses a kind of adjustable defect sub-nanometer gold load nickel iron composite photoanode catalyst, preparation method and application, deionized water is introduced into nitrogen and is deoxidized, multi-walled carbon nanotube treated by strong acid is placed in deionized water after deoxidation, after ultrasonic dispersion is uniform, together with FeCl2, NiCl2, HMT and ammonium fluoride is added into reaction kettle, reaction is carried out at 120 DEG C for 6 hours, after cooling, it is taken out, using deionized water is filtered, washed after, HAuCl4 is quickly added, sealed and is stirred in dark room, after reaction is finished, it is filtered, washed, nitrogen is dried at room temperature and is preserved in oxygen-free atmosphere.The application is synthesized Au / NiFe (hydroxyl) oxide / CNT composite catalyst by in-situ oxidation technology one step.The method can be simultaneously controlled on the basis of heterojunction Defects, the synergistic effect of both makes the catalyst performance be further optimized.Synthesis method is simple and direct, and catalytic effect is obviously improved.

The utility model discloses electrolytic bath heating equipment for cold start of AEM hydrogen production equipment. The electrolytic bath heating equipment comprises a heating water tank and an electric heater, the whole heating water tank is a rectangular shell, the electric heater comprises a junction box and a heating pipe, the junction box is fixedly installed on the left side of the top of the heating water tank, the heating pipe is located in the heating water tank, the top of the heating pipe is connected to the lower portion of the junction box, the heating pipe comprises a coil pipe part, and a heat conduction plate is fixedly connected to the coil pipe part; the heat conducting plate is fixedly mounted in the heating water tank through a plurality of groups of fixing brackets; water in the electrolytic bath is rapidly heated through the heating water tank, and the working temperature condition of the electrolytic bath can be rapidly met; compared with a traditional heating mode, the starting speed of the cold machine is greatly increased, the time needed by equipment from starting to normal operation is shortened, and the production efficiency is improved.

This invention discloses a low-voltage, high-current electrolytic hydrogen production power supply system and control method based on a SiC and IGBT hybrid half-bridge, belonging to the field of electrolytic hydrogen production technology. The system includes: a hybrid half-bridge power module, used to convert the bus voltage into the total system output voltage and output IGBT branch current and SiC branch current under the control of a drive signal; a drive and isolation module, connected between the digital control and sampling module and the hybrid half-bridge power module, used to generate a drive signal based on a PWM signal and send the drive signal to the hybrid half-bridge power module; and a digital control and sampling module, used to sample key state variables of the system, calculate the PWM signal based on the key state variables, and send the PWM signal to the drive and isolation module. This invention compensates for the ripple of the low-frequency IGBT branch in real time through the high-frequency SiC branch, avoiding the problem of temporary ripple increase in traditional hybrid topologies during transients.

The utility model provides a kind of hydrogen production hydrogen storage equipment, including at least one hydrogen production module and pure water module;Every hydrogen production module includes: first support, forms a first installation space;Deionization column, is set to the bottom of first support;PEM electrolytic cell, is located in the side of deionization column;Pure water storage device includes: box, forms a second installation space;At least two liquid level sensors are respectively located in the first liquid level and second liquid level of box, and when water level reaches first liquid level or second liquid level, the trigger signal emitted by liquid level sensor located in first liquid level is opposite to the trigger signal emitted by liquid level sensor located in second liquid level, wherein first liquid level is lower than second liquid level;Water inlet hole is connected with a pure water machine to receive pure water into box;Water return hole is connected with PEM electrolytic cell.After the above technical scheme is used, it has active protection measures to prevent equipment from being damaged.

The invention provides a start-stop and scheduling control method for an ALK-PEM hybrid hydrogen production system. The method comprises the following steps: collecting real-time output power and historical power data of a renewable energy power generation end; based on the real-time output power and the historical power data, outputting a power pre-judgment result in a future preset time period through an improved neural network model with electrochemical inertia compensation; according to a power pre-judgment result, combining the performance characteristics of the ALK and PEM electrolytic cells, and according to a rule that the ALK electrolytic cell unit is responsible for relatively smooth steady-state power and the PEM electrolytic cell unit is responsible for a steep rising and falling part, performing dynamic power distribution on the ALK and PEM electrolytic cell units; and according to the power interval where the real-time output power is located, hierarchical optimization control is conducted on the ALK electrolytic cell unit and the PEM electrolytic cell unit. According to the scheme, the problems that power distribution is unbalanced and the hydrogen production efficiency is low due to the fact that existing hybrid system control cannot deal with output intermittency of renewable energy sources are solved.

The application relates to the technical field of electrolytic tanks for hydrogen production by electrolysis of water, in particular to an electrolytic tank for hydrogen production by electrolysis of water, which comprises a first end plate and a bolt arranged in the first end plate, the other end of the bolt is connected with a second end plate in a penetrating mode, an electrolytic tank body is arranged between the first end plate and the second end plate, an electrolyte inlet is arranged in the second end plate in a penetrating mode, the electrolytic tank body is composed of multiple electrolytic cells, each electrolytic cell is composed of a first cylinder frame, a cathode plate, an anode plate, a second cylinder frame and a diaphragm body, and the outer sides of the first cylinder frame and the second cylinder frame are both fixedly provided with a first fixed pipe. The electrolytic tank for hydrogen production by electrolysis of water can well stir the surrounding electrolyte through the cooperation of the stirring block and the stirring plate, the stirring range is increased, the gas bubbles are prevented from being retained on the cathode plate and the anode plate, and therefore the electrolysis efficiency of the electrolytic tank body and the hydrogen production efficiency can be improved.

The present disclosure relates to a method, device, storage medium and electronic device for controlling hydrogen production, the method comprising: determining one or more target electrolyzers from a plurality of electrolyzers according to a total hydrogen production power and a minimum safety power of each electrolyzer in the plurality of electrolyzers; distributing the total hydrogen production power to the one or more target electrolyzers according to a first preset power distribution manner; obtaining a remaining hydrogen production power after the total hydrogen production power is distributed according to the first preset power distribution manner; distributing the remaining hydrogen production power to the one or more target electrolyzers according to a second preset power distribution manner; and controlling the one or more target electrolyzers to produce hydrogen according to the hydrogen production power distributed to the one or more target electrolyzers.

The invention provides an electrolytic bath alternating control method based on offshore wind power hydrogen production, all electrolytic baths in an electrolytic bath array are numbered differently, and the method is characterized in that the running states of the electrolytic baths are divided into rated power running, fluctuating power running and shutdown; according to the method, the alternating period Tmin is determined according to the characteristics of the electrolytic cell. According to the method, the problem that the service life of the electrolytic cell applied to offshore wind power hydrogen production is affected by new energy power generation volatility can be solved through alternating value control.

This invention provides an energy management optimization method, system, device, and storage medium for reducing voltage fluctuations and improving hydrogen production efficiency. The method is based on a wind-solar hydrogen production system, which includes a grid unit, a photovoltaic power generation unit, a wind power generation unit, and an electrolyzer unit. The grid unit is connected to node 1, the photovoltaic power generation unit is connected to node 3, the wind power generation unit is connected to node 4, and the electrolyzer unit is connected to node 5. Nodes 1, 3, 4, and 5 are each connected to node 2. The energy management optimization method provided by this invention does not backcharge reactive power to the grid, avoiding the release of excess reactive power from photovoltaic and wind power. The wind-solar hydrogen production system can improve hydrogen production efficiency by optimizing the voltage at the electrolyzer unit's connection point. The system can improve hydrogen production efficiency while optimizing line losses to avoid energy waste.

The application discloses a kind of solid hydrogen storage materials and preparation method thereof.The material is dense solid composite, by hydrogen production agent, non-noble metal boride catalyst and composite lithium cobalt oxide carrier is formed by pressure molding, and water can be supplied hydrogen.Hydrogen production agent is based on sodium borohydride or potassium borohydride;The carrier is modified composite lithium cobalt oxide, and has carrier and catalytic function.This application eliminates liquid solvent and porous support structure, builds synergistic catalytic system, to improve mass and volume hydrogen storage density, and ensure stable hydrogen production rate.Preparation method only involves solid phase mechanical mixing and pressing molding, and process is simple, suitable for large-scale production.The material has the characteristics of portable, safe, and can be used as an ideal hydrogen source, applied to hydrogen fuel cell and other fields.

The application discloses an extraction method salt lake lithium extraction wastewater treatment system and a treatment method. The extraction method salt lake lithium extraction wastewater treatment system treatment system comprises: a gas floating unit for gas floating treatment of wastewater, outputting dregs and a first liquid; an adsorption unit for adsorbing impurities including at least a surfactant in the first liquid, outputting a second liquid; a filtration unit for filtering the second liquid, outputting a third liquid; a hydrogen production unit for electrolytic hydrogen production and removal of organic matter using the third liquid, outputting hydrogen and a fourth liquid; and a post-treatment unit for extracting lithium resources in the fourth liquid, outputting lithium products. The extraction method salt lake lithium extraction wastewater treatment system of the application has simple structure, low investment and operation cost, can not only realize deep removal of organic matter, but also can recover hydrogen resources and lithium resources, effectively solves the technical problem of high wastewater treatment cost in the prior art, and has strong practicability.

The invention relates to the technical field of contact electrocatalysis and energy materials, in particular to a method for enhancing the activity of a monatomic catalyst, a fluorinated monatomic catalyst and a water splitting hydrogen production method. The method for enhancing the activity of the monatomic catalyst comprises the following steps: providing a monatomic catalyst, and carrying out fluorination treatment on the surface of the monatomic catalyst by using a fluorine-containing silane organic solvent to obtain a fluorinated monatomic catalyst, according to the fluorinated monatomic catalyst, the contact electrification capability of the carrier is enhanced based on the contact electrocatalytic effect, and an interface electric field can be formed around the monatomic active center in the monatomic catalyst, so that the catalytic activity of the monatomic catalyst is enhanced. A brand new thought is provided for solving the technical problem that an existing monatomic catalyst is weak in catalytic activity, through the thought, the technical problem that the monatomic catalyst is weak in catalytic activity can be solved, and the monatomic catalyst capable of improving the catalytic activity can be applied to the field of hydrogen production to improve the hydrogen production efficiency.

The application belongs to the technical field of electric power, and proposes a rectifier based on a bridgeless AC-DC auxiliary converter and a control method. In the application, the rectifier is composed of a main power converter and a bridgeless AC-DC auxiliary converter, and the two are connected in parallel and operate in parallel. The main power converter adopts a thyristor rectifier to provide main power support for an electrolysis stack. The bridgeless AC-DC auxiliary converter includes low-pass filters, IGBTs, high-frequency transformers, diode rectifiers and other elements. A control unit and a driving unit are responsible for controlling the operation of the rectifier. Through the control algorithm of the sampling circuit and the central processing unit, the output current and the input current of the rectifier can be accurately controlled and compensated, thereby reducing the content of ripples and harmonics in the rectifier. The rectifier and the control method proposed in the application can make the grid-side current distortion small.

This invention relates to a supported catalyst with low noble metal content, its preparation method, and its application. The supported catalyst comprises a catalyst support and an active component, wherein the content of the active component is 0.2–0.4 wt%, and the relative impregnation depth of the active component is 0.05–0.16. When applied to the dehydrogenation of liquid organic hydrogen storage carriers, compared with high-noble metal-based dehydrogenation catalysts, the low-noble metal content catalyst of this invention can achieve a similar degree of dehydrogenation under the same catalyst loading and reaction conditions, significantly improving the hydrogen production efficiency per unit mass of noble metal and substantially reducing the cost of the dehydrogenation catalyst.

The application discloses a kind of double-vacancy ZnCdS solid solution photocatalyst and its preparation method and application, preparation method includes adding cadmium source, zinc source and sulfur source into anhydrous ethanol and stirring dissolution, the mass ratio of cadmium source, zinc source, sulfur source is 1:9:3, under the condition of 70~90 ℃ water bath reaction, after suction filtration, washing, drying, obtain powdery ZnCdS solid solution, NaOH is added to water and stirred and dissolved, then add powdery ZnCdS solid solution, again ultrasonic treatment, after suction filtration, washing, drying, obtain double-vacancy ZnCdS solid solution photocatalyst.The preparation method of the application has the advantages of high hydrogen production rate, good repeatability, simple preparation, low cost, etc., the obtained double-vacancy ZnCdS solid solution photocatalyst can be applied to the field of photocatalytic hydrogen production, and the hydrogen production efficiency is as high as 12.69mmol·g ‑1 ·h ‑1 , which is 23.94 times that of pure ZnS and 11.64 times that of pure CdS.

The utility model provides a high-pressure rectifying tower for hydrogen production. The high-pressure rectifying tower comprises a shell, a communicating piece and a switching assembly, a high-temperature decomposition chamber, a first adsorption chamber and a second adsorption chamber are sequentially arranged in the shell from bottom to top; a heater is arranged in the high-temperature decomposition chamber and is used for evaporating liquid methanol and performing high-temperature decomposition to obtain hydrogen and carbon dioxide; the first adsorption chamber and the second adsorption chamber are both used for accommodating adsorbents for adsorbing carbon dioxide; the communicating piece comprises a first communicating port, a second communicating port and a third communicating port; the first communicating port, the second communicating port and the third communicating port are respectively communicated with the high-temperature decomposition chamber, the first adsorption chamber and the second adsorption chamber; and the switching assembly is arranged in the communicating piece and can move up and down to switch between the second communicating opening and the third communicating opening, so that the high-temperature decomposition chamber is communicated with the first adsorption chamber or the second adsorption chamber, and therefore, the high-pressure rectifying tower for hydrogen production continuously operates to continuously produce hydrogen, and the hydrogen production efficiency is improved.

The application discloses a new energy electrolytic hydrogen production rectifier with off-grid adaptability and a control method, and the rectifier comprises an inverter with droop control, a transformer, a non-controlled rectifier, a DC / DC converter and a controller, can adapt to new energy fluctuation power supply environment, and supports off-grid operation.The control method comprises the following steps: S1, rectifying alternating current and inputting to the DC / DC converter; S2, collecting a real-time frequency value and calculating a frequency deviation value; S3, generating a direct current instruction value; S4, collecting an actual output current value; S5, generating a PWM control signal and adjusting the output current; and S6, realizing speed regulation of the output power of the non-controlled rectifier.The application can achieve the function of assisting in stabilizing the frequency of an off-grid micro-grid, can adapt to the working condition of off-grid new energy electrolytic hydrogen production in the scene of off-grid new energy electrolytic hydrogen production, and enables the hydrogen production load end to follow the high fluctuation of new energy power generation, and simultaneously assists in stabilizing the frequency of the off-grid system.

The application discloses a gas-water separation flow field structure and a hydrogen production equipment comprising the same. The gas-water separation flow field structure comprises a bipolar plate. The bipolar plate is provided with a fence at the edge to enclose an enclosed area. The enclosed area is provided with an inlet, an outlet and a flow splitting structure. The flow splitting structure is symmetrical and has two. A main flow channel is reserved between the two flow splitting structures. A branch flow channel is reserved between the flow splitting structure and the fence. The flow splitting structure comprises an inflow flow splitting plate and a plurality of baffle plates. Two adjacent baffle plates form a reaction zone. The two ends of the reaction zone are connected to the main flow channel and the branch flow channel respectively. The electrolyte with a faster moving speed flows in the main flow channel and the branch flow channel. The electrolyte with a slower moving speed is subjected to electrolysis reaction in the reaction zone. The pressure difference is caused by the flow rate difference between the main flow channel, the branch flow channel and the reaction zone. The hydrogen concentration difference exists between the reaction zone and the main flow channel and the branch flow channel. The double power drives the hydrogen in the reaction zone to be discharged quickly.