1356 results about "Hydrogen technologies" patented technology

The invention discloses a DC bus voltage fluctuation suppression method of a renewable energy hydrogen production system, and relates to the technical field of renewable energy electrolysis hydrogen production. The method comprises the following steps: collecting system operation parameters in real time; bus voltage disturbance power is estimated based on a disturbance observer, and frequency decomposition is carried out; fusing the ARIMA model and the LSTM model to predict the load power, and calculating a prediction deviation; dynamically setting upper and lower limits of a bus voltage control interval according to the predicted deviation and the operation state; a multi-objective optimization function is constructed, bus voltage disturbance power, prediction deviation and a control limit value are comprehensively considered, and power regulation instructions of battery energy storage, a fuel cell and an electrolytic cell are solved; and executing power regulation control to realize bus voltage stabilization. The method can improve the grading response capability of voltage disturbance, the prediction accuracy of load power change, the adaptability of the control boundary and the overall operation stability of the system, and is suitable for the electric energy quality control of the hydrogen production system in a multi-source fluctuation scene.

The embodiment of the invention relates to a modular integrated photocatalytic hydrogen production system and a photocatalytic hydrogen production method thereof, and belongs to the technical field of new energy photocatalytic hydrogen production. The modularized integrated photocatalytic hydrogen production system comprises an integrated rack, a plurality of photocatalytic hydrogen production reaction devices are arranged in the integrated rack, and the photocatalytic hydrogen production reaction devices are connected with a monitoring control device. The modularized integrated photocatalytic hydrogen production system provided by the embodiment of the invention not only integrates the photocatalytic hydrogen production reactor, efficient utilization of light emitted by the light source and timely recycling of volatile reaction liquid, but also adopts a modularized structure to integrate a plurality of photocatalytic hydrogen production reaction devices, pipelines thereof and a control system; the whole device is simple in structure, convenient to machine, convenient to use and beneficial to equipment management and maintenance, the hydrogen production scale can be conveniently expanded according to needs, and application and popularization of the photocatalytic hydrogen production technology are facilitated.

The device is mainly used in the technical field of electrolytic hydrogen production. The invention discloses a water electrolysis hydrogen production system based on a proton exchange membrane electrolytic cell. The water electrolysis hydrogen production system comprises an electrolysis unit, a water circulation unit and a gas-liquid separation unit, the electrolysis unit is used for carrying out electrolysis treatment on the liquid water to obtain hydrogen, oxygen and gas-liquid mixed water; the gas-liquid separation unit comprises a primary separation module and a secondary separation module; the primary separation module is used for carrying out separation treatment on the gas-liquid mixed state water to obtain separated liquid water; the second-stage separation module is used for performing gas release treatment on the separated liquid water to obtain the liquid water after gas release; and the water circulation unit is used for transmitting liquid water after gas release to the electrolysis unit. According to the technical scheme, the release speed of the gas dissolved in the liquid water can be increased, the content of the gas in the liquid water is reduced, and therefore the safety risk of the water electrolysis hydrogen production system in the hydrogen production process is reduced.

A water electrolysis hydrogen production system, and a method and apparatus for controlling gas purity in a water electrolysis hydrogen production process, relating to the technical field of electrolytic hydrogen production. The water electrolysis hydrogen production system comprises an electrolytic cell, a hydrogen gas-liquid separation unit, and an oxygen gas-liquid separation unit. A hydrogen side gas outlet of the electrolytic cell is connected to the hydrogen gas-liquid separation unit, and an oxygen side gas outlet of the electrolytic cell is connected to the oxygen gas-liquid separation unit. A liquid outlet of the hydrogen gas-liquid separation unit is connected to a first pipeline; a liquid outlet of the oxygen gas-liquid separation unit is connected to a second pipeline; the first pipeline and the second pipeline are converged and then connected to one end of an alkaline liquor backflow main pipeline; and the other end of the alkaline liquor backflow main pipeline is connected to an oxygen side pipeline and a hydrogen side pipeline. The hydrogen side pipeline is connected to a hydrogen side alkaline liquor flow channel inlet of the electrolytic cell, and the oxygen side pipeline is connected to an oxygen side alkaline liquor flow channel inlet of the electrolytic cell. The hydrogen side pipeline and the oxygen side pipeline are each provided with a flow measurement assembly and a flow adjustment assembly. The flows at the hydrogen side inlet and the oxygen side inlet of the electrolytic cell are respectively controlled, and the concentration of the alkaline liquor is kept consistent at the two sides.

The invention relates to the technical field of water electrolysis hydrogen production, in particular to a water electrolysis hydrogen production optimization method and system based on big data analysis, and the method comprises the following steps: S1, data collection: collecting operation data in a water electrolysis hydrogen production process in real time through a sensor; s2, data preprocessing and feature extraction: extracting features related to electrolytic efficiency and electrode life; s3, bubble management based on self-adaptive sound wave control: dynamically adjusting the frequency and intensity of sound waves by using a self-adaptive sound wave control algorithm, and optimizing the distribution and discharge path of bubbles on the surface of the electrode; and S4, fatigue prediction and optimization of the electrode material: analyzing the performance change of the electrode material in real time, predicting the fatigue life of the electrode, and automatically adjusting electrolysis operation parameters or intelligently scheduling replacement operation of the electrode according to a prediction result. According to the invention, the stability of the electrolysis process is ensured, and the problem of performance reduction caused by bubble accumulation is avoided.

The invention relates to the technical field of electrolytic hydrogen production, and discloses a PEM electrolytic cell energy-economy collaborative optimization method based on digital twinning, which comprises the following steps: S1, calibrating parameters of a membrane electrode mathematical model by using a standard test for a single cell of a PEM electrolytic cell, and establishing a high-precision physical simulation model; s2, constructing a high-precision digital twin system based on the high-precision physical simulation model; s3, inputting multi-dimensional data of electricity price fluctuation, hydrogen demand prediction and equipment state, and performing collaborative optimization analysis through an optimization decision algorithm; s4, forming a PEM electrolytic cell control optimization instruction; and S5, the physical entity PEM electrolytic bath executes the instruction. According to the method, the'electricity price-demand-equipment 'dynamic relation is planned as a whole from the global perspective, the process steps cover data-driven modeling, multi-target decision, digital twinning cooperation and closed-loop feedback, balance needs to be achieved among algorithm efficiency, model precision and engineering feasibility, and energy-economy-life multi-target cooperation is achieved.

The invention provides a novel adjustable partition type alkaline electrolytic cell technology and a matched electrolysis cell structure, and belongs to the technical field of alkaline water electrolysis hydrogen production. According to the technology, a flow channel of an alkaline water electrolysis device is changed to be four-in and four-out and is divided into four areas, and the flow of each area is independently adjusted; a hydrogen molecule detector is arranged on the gas outlet side, the opening degree of a liquid inlet adjusting valve is controlled according to a detection result, dynamic adjustment is achieved, and flow balance is guaranteed; the small electrolysis chamber comprises a pole frame, a pole plate, a diaphragm and an electrode net, the pole frame is in four-partition design, and a vertical partition plate is added to enhance the rigidity; the pole plate is divided into three phases and the mastoid structure is optimized; the diaphragm is designed in a split manner; the electrode net is optimized according to the polar plate. The process and the structure are optimized, the electrolysis efficiency is improved, the structural safety is enhanced, the energy consumption is reduced, and good application prospects are achieved in the field of hydrogen production through alkaline electrolysis of water.

The invention relates to the technical field of hydrogen storage, in particular to a hydrogen storage tank hydrogen absorption and desorption simulation analysis method based on a JMAK model, and is mainly used for optimizing evaluation and improvement of performance of a hydrogen storage tank in the hydrogen adsorption and release process. Compared with a traditional simulation method, the method has the advantages that the physical model of the hydrogen storage tank is constructed, thermodynamic and dynamic characteristics in the hydrogen absorption and desorption process are combined, particularly, a PCT result curve obtained through a PCT performance test of a hydrogen storage material is utilized, a JMAK model is combined, and experimental data are subjected to fitting processing through origin drawing software; and on the basis of data measured by an experiment, a COMSOL simulation software is used for carrying out detailed modeling and analysis on the absorption and release process of the hydrogen, so that the simulation precision of the hydrogen storage and release process is optimized, and the dynamic behavior and thermodynamic behavior of the hydrogen in the hydrogen storage tank are captured. According to the invention, accurate simulation of key factors such as hydrogen absorption and release rate, temperature distribution, pressure change and the like in the hydrogen storage tank can be realized.

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

The invention relates to the technical field of PSA (Pressure Swing Adsorption) hydrogen extraction, in particular to a hydrogen purification process based on a PSA device, which comprises the following steps: raw material gas is firstly decompressed and enters the PSA device, a product hydrogen after impurity removal is sent to the outside, desorbed gas of the PSA device is pressurized by a desorbed gas compressor and is sent to a first-section shift converter, the raw material gas enters an adsorption tower in an adsorption state, and the desorbed gas enters a second-section shift converter; under the action of a special adsorbent, CO, N2, CH4O, CH4, AR and other components in the raw material gas are adsorbed, and high-purity H2 flows out of the tower top, is subjected to pressure stabilization metering through a regulating valve and then is sent out. According to the hydrogen purification process based on the PSA device, residual impurities can be deeply removed by using two-stage pressure swing adsorption, additionally arranging a two-stage adsorption tower and performing post-treatment detection on hydrogen, the impurity content required by high-purity hydrogen needs to be controlled at a ppm level, the purity of the hydrogen can stably rise to 99.99% or even higher through two-stage PSA, and the purity of the hydrogen is greatly improved. The use standard of ultra-high-purity hydrogen in the production of semiconductors and photovoltaic cells is met, and the process stability and the yield of products are guaranteed.

The invention relates to the technical field of water electrolysis hydrogen production, and discloses a method and system for evaluating the operation performance of an alkaline water electrolysis hydrogen production device, and the method comprises the steps: 1, deploying a distributed sensor network, collecting the operation data of an electrolytic cell, building a multi-physical field coupling model, and calibrating a model parameter matrix; and step 2, constructing an electrode damage evolution model based on the model parameter matrix, processing acoustic emission signals acquired by the sensor network, extracting crack characteristic parameters, calculating real-time damage degree, and generating graded early warning signals. According to the technical scheme, the distributed sensor network is adopted to collect the multi-physical field data, and the coupling model is established to calibrate the parameter matrix, so that the technical effect of a multi-dimensional parameter dynamic coupling relation is achieved; the defects of large energy efficiency evaluation deviation and low reliability caused by neglecting of multi-field interaction in a traditional method are overcome.

The invention belongs to the technical field of solid hydrogen storage, and provides a solid alloy hydrogen storage device with high heat transfer performance and application thereof, and is characterized in that the device comprises a hydrogen storage container, a hydrogen storage alloy and a heat exchange structure assembly; a fin structure and a layering partition plate are arranged in the hydrogen storage container, by optimizing the layering partition plate and the fin structure, displacement and agglomeration of hydrogen storage alloy in a moving or vibrating environment are effectively prevented, the mass transfer and heat transfer performance in the hydrogen storage tank is remarkably improved, hydrogen and heat can be rapidly transferred to the hydrogen storage alloy, and the hydrogen storage effect is improved. Therefore, the hydrogen absorption and desorption efficiency is improved. The method is suitable for AB2 type alloys, AB5 type alloys, BCC type alloys, superlattice hydrogen storage alloys and the like, the hydrogen absorption and desorption process can be efficiently completed at a certain temperature and pressure, and the high efficiency and stability of the hydrogen absorption and desorption process are ensured. And the catalyst can be widely applied to various scenes such as traffic, hydrogen refueling stations, industrial processes and hydrogen energy storage.

The invention belongs to the technical field of water electrolysis hydrogen production, and particularly relates to an electrolytic hydrogen production electrolytic bath. Comprising a composite electrode assembly; the composite electrode assembly comprises an electrode frame, a bipolar plate, an electrode conductive frame, an oxygen evolution electrode and a hydrogen evolution electrode, the electrode frame is arranged on the outer side of the bipolar plate, the electrode frame and the bipolar plate are both made of plastic materials, the electrode conductive frame is arranged in the electrode frame, and the oxygen evolution electrode and the hydrogen evolution electrode are arranged on the two sides of the bipolar plate respectively and both connected with the electrode conductive frame. By adopting the plastic-based bipolar plate, a sealing effect can be achieved, a sealing gasket part of a traditional electrolytic cell is removed, and the cost of the electrolytic cell is greatly reduced; and the plastic-based bipolar plate, the electrode and the electrode conductive frame are integrated into a whole, so that the assembling and integrating process of the electrolytic cell is greatly simplified.

The invention belongs to the technical field of ocean engineering and water electrolysis hydrogen production. In order to solve the problems that a traditional water cooling system is large in size and low in heat dissipation efficiency, a multi-scale thermal sensing network is deployed to collect data; establishing a multi-phase-change cross-scale heat transfer model; constructing a two-stage gradient composite cooling module; constructing and optimizing a cooling decision algorithm; designing a cooperative control loop; deep reinforcement learning control is implemented; creating a functional surface; and constructing a dynamic optimization system. The characteristics of part of the steps are limited, efficient heat management can be achieved, and stable operation of the floating type offshore hydrogen production platform cooling system is guaranteed.

The invention relates to the technical field of water electrolysis hydrogen production, in particular to a closed modular electrolytic cell for water electrolysis hydrogen production, which comprises an electrolytic hydrogen production cell, a partition structure, an electrolysis module and a second lifting structure, the electrolytic hydrogen production tank comprises a tank body and a cover body; the partition structure comprises an ion diaphragm, and the ion diaphragm divides the internal space of the tank body into a cathode chamber and an anode chamber; the electrolysis module comprises a hoisting plate, an electrolysis piece assembly, a plurality of clamping structures and a first lifting structure, the lower end of the hoisting plate abuts against the upper end of the ion diaphragm, the electrolysis piece assembly comprises a plurality of cathode pieces and a plurality of anode pieces, the clamping structures are arranged on the hoisting plate, and the first lifting structure is arranged between the cathode pieces and the anode pieces. The clamping structure clamps the cathode plate and the anode plate on the hoisting plate, and the first lifting structure is used for changing the height of the hoisting plate in the tank body; the second lifting structure is used for opening and closing the tank body and the cover body; according to the invention, the hoisting plate, the electrolytic sheet assembly, the clamping structure and the first lifting structure are arranged, so that the electrolysis efficiency is maintained.

The invention relates to the technical field of water electrolysis hydrogen production, and discloses a water quality control method and device, electronic equipment, a medium and a water electrolysis hydrogen production system.According to the scheme, dynamic data of the water electrolysis hydrogen production system are input into a prediction model, and the prediction model determines the conductivity of water according to the change rule of the conductivity of water along with dynamic influence factors; the change trend of the conductivity of the water in the water storage unit is predicted, and the path switching threshold value is determined based on the predicted change trend of the conductivity, so that the path switching threshold value is dynamically adjusted, and the change of the conductivity caused by power supply fluctuation, temperature change and the like of the PEM electrolytic cell can be coped with; and the switching frequency of the waterway switching unit is reduced while the standard-reaching rate of the water quality is improved. Moreover, the prediction model is obtained through training based on the output constraint condition, the condition that the conductivity of water in the water storage unit meets the preset water quality requirement and the switching frequency of the waterway switching unit is minimized, higher robustness is achieved for complex working conditions, and the accuracy of the conductivity change trend prediction result is improved.

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

The invention belongs to the technical field of ocean engineering and water electrolysis hydrogen production. In order to solve the problem that a traditional model is difficult to deal with dynamic sea conditions, a platform-environment coupling digital twin model is constructed, multi-source monitoring data is fused, and platform motion response is predicted through deep reinforcement learning. And generating anti-storm strategies such as ballast water regulation based on a prediction result, and realizing real-time optimization. According to the method, the evaluation accuracy is improved by 25%, and the strategy response time is lt; under the conditions of 8-level wind and 1.2 m wave height, the motion amplitude of the platform is reduced by 28%, the shutdown frequency of a hydrogen production system is reduced by 75%, and operation and maintenance of the floating platform are promoted to be upgraded to intelligent.

The invention belongs to the technical field of methane catalytic cracking hydrogen production, and particularly relates to a catalyst continuous cyclic regeneration methane catalytic cracking hydrogen production device and a hydrogen production system. The hydrogen production device comprises a methane catalytic cracking reactor, a steam reforming regeneration reactor and a spiral conveyor, and the bottom of the methane catalytic cracking reactor is communicated with the steam reforming regeneration reactor through the spiral conveyor. A steam distributor is arranged in the steam reforming regeneration reactor, and the top of the steam reforming regeneration reactor is communicated with the top of the methane catalytic cracking reactor. Along with the catalytic cracking reaction, the deactivated catalyst settles to the bottom of the methane catalytic cracking reactor and is conveyed to the steam reforming regeneration reactor by the spiral conveyor, and steam upwards blown by the steam distributor is in contact with the deactivated catalyst, is regenerated and enters the catalytic cracking reactor again; a continuous cycle process of catalysis, inactivation, regeneration and catalysis is completed; the deactivated catalyst is regenerated through water vapor, so that potential safety hazards caused by oxygen entering are avoided.

The invention relates to the technical field of water electrolysis hydrogen production, in particular to a self-supporting hollow carbon membrane electrode and a preparation method and application thereof.The preparation method comprises the following steps that a self-supporting hollow carbon nanofiber membrane with metal M and metal M compound heterojunction is prepared through a coaxial electrostatic spinning technology; the self-supporting electrode with a high specific surface area and a rapid mass transfer channel is formed by regulating and controlling the flow rate of the spinning solution of the outer layer and the inner layer and a high-temperature carbonization process, the metal M is selected from one of iron, cobalt, nickel, manganese and molybdenum, and the metal M compound is one of oxide, hydroxide, carbide, nitride, phosphide and chalcogenide. Compared with the prior art, the self-supporting hollow carbon membrane electrode disclosed by the invention has good mechanical stability, good hydrophilic and hydrophobic properties and excellent HER and OER bifunctional catalytic activity, and can be used for efficiently and completely decomposing water.

The invention relates to a water electrolysis hydrogen production technology, and aims to provide a super-hydrophilic nickel-based electrode with a two-stage array structure and a preparation method of the super-hydrophilic nickel-based electrode. According to the nickel-based electrode, a three-dimensional net-shaped nickel felt made of micron-sized pure nickel fibers serves as a base material, and micron-sized second-stage array structures are periodically arranged on the first-stage surface of the nickel felt; the secondary array structure is any one or two of a ridge-shaped array or a square column array formed on the surface of the nickel felt by using a femtosecond laser etching process. The preparation method of the electrode is simple in preparation step, has super-hydrophilic and super-aerophobic characteristics, is excellent in electrochemical performance and low in cost, and is very suitable for industrial production and application; a femtosecond laser one-step method is used for processing, subsequent treatment is not needed, and the method is simple, easy to operate and suitable for being amplified to an industrial production scale; the surface wettability of the electrode is greatly enhanced, the hydrophilic and aerophobic properties are excellent, and water transmission and bubble desorption in the electrolysis process are facilitated.

The invention discloses a storage medium, a hydrogen catalyst life cycle management method, device and equipment, and the method comprises the steps: before a process reaction, through a preset catalyst performance analysis model, respectively determining the optimal pore diameter, the optimal surface area and the optimal pore volume of each hydrogenation catalysis single agent, and the corresponding optimal use temperature; respectively constructing a catalyst activity simulation model corresponding to each single catalytic agent, and constructing a nonlinear catalyst filling optimization model of a maximized objective function; the method comprises the following steps: in a process reaction process, taking current data of a first preset working condition as input, and determining an optimal value of a preset controllable variable when a balance limit value of vulcanization time is reached through a preset catalyst pre-vulcanization simulation model; and determining a time point when the catalyst activity is lower than a preset threshold value through a preset catalyst reaction simulation model by taking the current data of the second preset working condition as input. According to the method, the technical operation can be guided, so that the heavy oil hydrogenation technical level is improved.

The present invention discloses a Ni‑Se‑C hydrogen evolution electrode and a preparation method thereof, belonging to the technical field of electrocatalytic hydrogen evolution. The Ni‑Se‑C hydrogen evolution electrode is composed of a conductive substrate and a Ni‑Se‑C coating electroplated on the surface of the conductive substrate. First, the conductive substrate is pretreated in the present invention; then, Ni, Se, and C elements are deposited on the pretreated conductive substrate by electroplating to form a Ni‑Se‑C hydrogen evolution electrode with excellent hydrogen evolution performance. The synthesis method of the present invention is simple and the catalytic layer structure is stable. The synthesized Ni‑Se‑C hydrogen evolution electrode can be widely applied to the industrial production of hydrogen by electrolyzing water, and has significant practical value and economic value.

The invention relates to the technical field of hydrogenation, and discloses a hydrogenation system and method suitable for small solid hydrogen storage, and the hydrogenation system comprises an emergency cut-off system, a scram button, an emergency switch-off system and a control system, the emergency cut-off valve is electrically connected with the emergency stop button and the PLC control system and is used for cutting off a hydrogen passage when an abnormality occurs; and the PLC control system is electrically connected with the emergency cut-off system, is electrically connected with the hydrogen leakage and flame detection system and the process equipment system, and is used for receiving signals and controlling the operation of each module. According to the invention, hydrogenation is carried out on a large batch of small solid hydrogen storage tanks in the form of a hydrogenation tank changing machine. The machine is connected with the solid hydrogen storage tank in a quick-plug connector mode, when hydrogenation is needed, the empty tank only needs to be inserted into equipment, plug-and-play is achieved, and the empty tank is pulled out after being filled up. The problem of filling efficiency of a large batch of solid hydrogen storage tanks can be solved, the service efficiency of a hydrogen refueling station is improved, the requirements for the working conditions and the number of operators are not high, human intervention is little, and the automation degree is higher.

The invention relates to the technical field of natural gas hydrogen doping, and provides a multi-stage natural gas hydrogen doping device and a natural gas hydrogen doping method.The multi-stage natural gas hydrogen doping device comprises a natural gas pipeline, a hydrogen pipeline, a gas mixing pipeline and a PLC control system; a mixer is arranged on the gas mixing pipeline; one end of the natural gas pipeline is connected with the mixer, and the other end is a natural gas inlet end; one end of the hydrogen pipeline is connected with the mixer, and the other end of the hydrogen pipeline is a hydrogen inlet end; the natural gas pipeline comprises multiple stages of natural gas pipelines which are arranged in parallel, and first flow transmitters are arranged on the multiple stages of natural gas pipelines; the hydrogen pipeline comprises multiple stages of hydrogen pipelines which are arranged in parallel, and second flow transmitters are arranged on the multiple stages of hydrogen pipelines. According to the multi-stage natural gas hydrogen doping device, multi-stage flow distribution can be achieved, so that the effect of accurately controlling the hydrogen doping proportion is achieved, hydrogen-doped natural gas can be evenly mixed, and the system can be comprehensively and integrally controlled.

The invention relates to a hydrogen exchange method and a control system, and belongs to the technical field of hydrogen exchange. Coordinate information of a to-be-replaced hydrogen tank bag of the replaceable vehicle is obtained, and automatic hydrogen replacement is controlled to be completed in the X, Y and Z three-dimensional directions; outputting completion information, generating hydrogen exchange order information and settling the total cost; wherein the coordinate information of the to-be-exchanged hydrogen tank bag is calculated by the following steps of: calibrating a reference coordinate position of a standard hydrogen tank bag; the scanning device is driven to the middle position of the standard hydrogen tank bag, and the distance between the scanning device and the standard hydrogen tank bag and the distance from the initial position to the middle position of the scanning device are obtained; scanning the two ends of the to-be-exchanged hydrogen tank bag by using scanning equipment to obtain a second distance and a third distance from the scanning equipment to the to-be-exchanged hydrogen tank bag, and obtaining two moving positions of the scanning equipment; when the position of the to-be-replaced hydrogen tank bag is inconsistent with the position of the standard hydrogen tank bag, the deviation and the inclination angle of the to-be-replaced hydrogen tank bag in the X-axis direction and the Y-axis direction are calculated, and actual coordinates are obtained. According to the invention, the hydrogen supplementing time is shortened, and the convenience and efficiency are improved.

The invention belongs to the technical field of pressure type water electrolysis hydrogen production, and particularly relates to a concave-convex flange type high-pressure water electrolysis hydrogen production electrode frame and an electrolysis unit.The concave-convex flange type high-pressure water electrolysis hydrogen production electrode frame comprises an electrode frame body and a bipolar plate, the bipolar plate and the electrode frame body are integrally formed in an injection molding mode, and a first boss is arranged on the outer edge of the front face of the electrode frame body; the electrolysis unit comprises two end pole plates and a plurality of concave-convex flange type high-pressure water electrolysis hydrogen production electrode frames, and each concave-convex flange type high-pressure water electrolysis hydrogen production electrode frame is located between the two end pole plates and is aligned and stacked together in the axial direction. The bipolar plate and the electrode frame are formed into an integrated structure through an injection molding process, and the bipolar plate is accurately embedded in the electrode frame in the injection molding process, so that the overall structural strength of the electrolysis unit is improved, and gas or liquid leakage possibly generated in the electrolysis process is effectively prevented; therefore, safe and efficient electrolytic reaction is ensured.

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 an operation control method of an electrolytic bath, and belongs to the technical field of water electrolysis hydrogen production. According to the method, the driving model based on the historical operation data is constructed, so that the operation data change trend of the electrolytic cell in the future time range can be accurately predicted. Meanwhile, the method can identify the time period in which the running data of the electrolytic cell may be abnormal, so that measures are taken in advance, potential equipment failure or performance reduction is avoided, and the risk of accidental shutdown is reduced.

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