99 results about "Hydrogen output" patented technology

A burner including a first pulverized coal entrained fluid flow conduit; an inner hydrogen conduit; and a hydrogen oxidant conduit positioned between the first pulverized coal entrained fluid flow conduit and the inner hydrogen conduit; an outlet of the inner hydrogen conduit positioned a first distance from an outlet of the hydrogen oxidant conduit such that hydrogen output from the outlet of the inner hydrogen conduit passes through a portion of the hydrogen oxidant conduit to the outlet of the hydrogen oxidant conduit; and the outlet of the hydrogen oxidant conduit being a second distance from an outlet of the first pulverized coal entrained fluid flow conduit such that the hydrogen and the hydrogen oxidant output from the outlet of the hydrogen oxidant conduit passes through a portion of the first pulverized coal entrained fluid flow conduit for being output from the burner.

The utility model discloses a hydrogen production and power generation coupling system based on methanol concentration difference, which relates to the technical field of methanol electrolysis hydrogen production and comprises a methanol electrolysis hydrogen production reactor, a methanol water supply unit, a direct methanol fuel cell and an energy storage cell, the methanol water supply unit provides methanol water required by hydrogen production for the methanol electrolysis hydrogen production reactor, and a water outlet of the methanol electrolysis hydrogen production reactor is communicated with a water inlet of the direct methanol fuel cell, so that low-concentration methanol water output by the methanol electrolysis hydrogen production reactor is input into the direct methanol fuel cell for power generation; the direct methanol fuel cell, the energy storage cell and the methanol electrolysis hydrogen production reactor are sequentially in circuit connection. According to the methanol electrolysis hydrogen production reactor, the high-concentration methanol aqueous solution is used for electrolysis hydrogen production, the output low-concentration methanol aqueous solution serves as a raw material for power generation of the direct methanol fuel cell, the direct methanol fuel cell generates power and then supplies the power for hydrogen production of the methanol electrolysis hydrogen production reactor, an external power source is not needed for power supply, and the system efficiency is high.

The invention discloses a hydrogen storage tank pressure control system of a hydrogen production, hydrogen storage and power generation closed-loop system, and relates to the technical field of hydrogen production, hydrogen storage and power generation, and the hydrogen storage tank pressure control system comprises a pressure data acquisition module which is used for acquiring internal pressure data of a hydrogen storage tank so as to monitor the internal pressure data change of the hydrogen storage tank in real time; the hydrogen output line is used for outputting hydrogen in the hydrogen storage tank, the hydrogen input line is used for inputting hydrogen into the hydrogen storage tank, the control execution module is used for controlling in and out of the hydrogen in the hydrogen storage tank, and the compression module is used for compressing the hydrogen in the hydrogen input line and increasing the pressure. The hydrogen flow rate monitoring module is used for monitoring the flow rate of hydrogen in the hydrogen output line and monitoring the flow rate of hydrogen in the hydrogen input line. The execution module and the compression module are controlled based on the stepped control model, so that the hydrogen flow rate in the hydrogen output line and the hydrogen flow rate in the hydrogen input line are changed until the pressure in the hydrogen storage tank is balanced.

The invention belongs to the technical field of hydrogen storage, and particularly relates to a solid hydrogen storage tank and an explosion suppression control method thereof. The solid hydrogen storage tank comprises a tank body, at least one monitoring module, at least one explosion suppression device and a control module, the tank body comprises a tank shell and an airflow speed limiter, an inner cavity is formed in the tank shell, and the airflow speed limiter is arranged in the tank shell. The monitoring module is arranged on the peripheral wall of the tank shell and used for collecting pressure and temperature in the inner cavity. And the at least one explosion suppression device is arranged on the peripheral wall of the tank shell and can spray an explosion suppression material towards the inner cavity. The control module is connected with the monitoring module and the explosion suppression device and controls the explosion suppression device according to monitoring information sent by the monitoring module. Wherein the airflow speed limiter is connected with a hydrogen output pipeline and is used for adjusting the flow of hydrogen entering the hydrogen output pipeline according to the pressure in the inner cavity. According to the solid-state hydrogen storage tank provided by the invention, the safety level of the solid-state hydrogen storage tank is greatly improved in a mode of combining active safety defense and passive safety adjustment.

The utility model discloses a healthy water nourishing machine with an electrolytic hydrogen production water and membrane wire hydrogen mixing system. The healthy water nourishing machine comprises a water purifier module, an electrolytic hydrogen production water module and a membrane wire hydrogen mixing module, the alkaline electrolytic bath and the pressure membrane filament gas mixing unit are arranged on the water outlet main channel; the water outlet auxiliary channel conveys water to the membrane wire water tank; the proton membrane electrolytic bath, the membrane filament water tank and the membrane filament water pump are communicated through a membrane filament electrolysis water path; a hydrogen output gas path is arranged at the hydrogen generation end of the proton membrane electrolytic cell; and the hydrogen output gas path is connected with the pressure membrane wire gas mixing unit and can dissolve hydrogen into the water outlet main channel. According to the utility model, the technical bottleneck of the traditional single process is successfully broken through by innovatively integrating electrolytic hydrogen production water and membrane wire hydrogen mixing double systems, the stability of the core physical and chemical indexes of the electrolytic water is ensured by the double-channel shunting waterway design, and the hydrogen content is greatly increased through physical hydrogen mixing, so that healthy water which conforms to the indexes and is sterilized by ultraviolet rays is formed.

The utility model discloses an electrolytic cell polar plate of rainbow shape runner and hydrogen generator, electrolytic cell polar plate of rainbow shape runner includes electrolytic polar piece body, and the opposite two sides of electrolytic polar piece body are provided with first recess and second recess respectively, the second recess is connected with hydrogen output channel, the first recess is connected with electrolyte input channel and electrolyte output channel, and is provided with first main stream groove, second main stream groove and a plurality of first branch stream groove in the first recess, and the first main stream groove is surrounded in the periphery of a plurality of first branch stream groove, and the second main stream groove penetrates first branch stream groove, and both ends are communicated with first main stream groove, be provided with fourth main stream groove, fifth main stream groove and a plurality of second branch stream groove in the second recess, and the fourth main stream groove is surrounded in the periphery of a plurality of second branch stream groove, and the fifth main stream groove penetrates second branch stream groove, and both ends are communicated with fourth main stream groove. The utility model can reduce the flow resistance of electrolyte, and make hydrogen gas bubble in branch runner fast discharge, reduce bubble stagnation risk.

The invention discloses a control method and device of a hydrogen production system, the hydrogen production system and electronic equipment, and belongs to the technical field of hydrogen production. The method comprises the steps that information of hydrogen using stations and hydrogen using requirements of all the hydrogen using stations are obtained; dividing each hydrogen production unit in the hydrogen production station according to the information of the hydrogen use station and the hydrogen use demand of each hydrogen use station to obtain a plurality of hydrogen production groups, and setting the state of a valve between the hydrogen output end of each hydrogen production unit in each hydrogen production group and hydrogen output buffer equipment, by setting the state of the valve between the hydrogen output end of each hydrogen production unit in each hydrogen production group and the hydrogen output buffer equipment, different hydrogen use scenes can be selected, the resources of the hydrogen production station are fully utilized, the fluctuation influence between different hydrogen use scenes is avoided, the efficient and flexible operation of the hydrogen production station is facilitated, and the hydrogen production efficiency is improved. And the control freedom degree and practicability of the hydrogen production station are improved.

The utility model relates to a kind of pipeline arrangement system of multiple vertical hydrogen storage bottles of vehicle, multiple hydrogen storage bottles are provided with bottle mouth valve and bottle tail valve, bottle mouth valve is connected with bottle mouth discharge pipeline and hydrogen inlet and outlet pipeline, bottle tail valve is connected with bottle tail discharge pipeline, bottle tail discharge pipeline is connected after being summarized with discharge main pipeline, hydrogen inlet and outlet pipeline is also connected with hydrogen outlet pipeline after being summarized, two groups of pressure regulating combination valves are connected in parallel on hydrogen outlet pipeline, end is connected with the interface to the battery pack of vehicle battery pack engine, the downstream hydrogen supply pipeline of two pressure regulating combination valves is connected with discharge main pipeline by needle valve. The discharge port of bottle mouth discharge pipeline and bottle tail discharge pipeline makes the orderly centralized discharge of hydrogen of overall pipeline, avoid excessive internal pressure of pipeline, hydrogen outlet pipeline is connected in parallel with two groups of pressure regulating combination valves, the hydrogen output of two groups of pressure regulating combination valves is simultaneously regulated to stable hydrogen flow by pressure reduction, ensure the hydrogen pressure and flow of output, meet the requirement of vehicle combustion.

The application provides a hydrogen circulation system offline calibration device and method for a fuel cell, which comprises a hydrogen circulation system of a fuel cell to be calibrated, a hydrogen flow consumption device, a pressure sensor, a first flow meter and a controller. The first flow meter is used for measuring the hydrogen output of the hydrogen circulation system of the fuel cell to be calibrated, and the pressure sensor is used for measuring the inlet pressure of the hydrogen circulation pump of the hydrogen circulation system of the fuel cell to be calibrated. The hydrogen flow consumption device is used for simulating the hydrogen consumption. The controller calculates the hydrogen output demand, the hydrogen consumption demand and the anode inlet pressure value corresponding to each discrete current value according to the stack parameters of the fuel cell. In the calibration process, the parameter calibration value of the hydrogen circulation system under each discrete current value is obtained. The offline map can be quickly and accurately calibrated, and the calibration efficiency is effectively improved. The application is suitable for the technical field of fuel cells.

The invention discloses an alkaline electrolytic cell regulation variable priority determination method and a related device, the correlation between different state variables is considered through a correlation matrix, through a first-order variance contribution matrix and a total variance contribution matrix, the influence of a regulation variable on a single state variable is considered, and the priority of the regulation variable is determined through the first-order variance contribution matrix and the total variance contribution matrix. The interaction of each regulation and control variable in a plurality of state variables is also considered, correlation and variance contribution are incorporated into a sensitivity analysis framework, and the sensitivity of each preset moment regulation and control variable to the state variables can be determined, so that the priority of each preset moment regulation and control variable can be determined, and a proper regulation and control strategy can be conveniently formulated and implemented; the operation efficiency and the control precision of the alkaline electrolytic cell are remarkably improved, the hydrogen output is optimized, and the overall performance is enhanced.

The utility model discloses a kind of hydrogen production devices of cylindrical hydrogen fuel cell, including upper rotary cover and lower rotary seat in the shape of cylinder;Upper rotary cover and lower rotary seat are connected using the mode of rotary clamping;Upper rotary cover is equipped with hydrogen output port;Lower rotary seat is built into baffle seat;Baffle seat is made of baffle and several mounting seats, and the baffle on the bottom of mounting seat is equipped with through-hole;Space between lower rotary seat and baffle seat is equipped with battery and pump;Water tank, hydrogen reactor and dryer are respectively installed in mounting seat;The input end and output end of pump are connected water tank and hydrogen reactor by pipeline;The gas outlet of hydrogen reactor is connected dryer by pipeline, and dryer is connected hydrogen output port by pipeline.The utility model aims at providing a kind of hydrogen production devices of cylindrical hydrogen fuel cell, which adopts cylindrical shell, is convenient for holding and carrying, and baffle seat makes internal structure distribution compact, effectively improves safety.

The utility model discloses a human body hydrogen absorption machine respiration sensing control system which comprises a hydrogen production machine, a circuit control module, a hydrogen output port and a pressure sensor are arranged on the hydrogen production machine, the pressure sensor is connected to an output pipeline, connected with a human body, of the hydrogen output port, and the circuit control module is in signal connection with the pressure sensor. According to the breathing sensing control system of the human body hydrogen absorption machine, the pressure sensor is arranged to detect the pressure of hydrogen on the pipeline connected with the human body in real time, the circuit control module obtains the pressure value detected by the pressure sensor, when the human body is separated from the equipment, the hydrogen production machine is stopped from outputting hydrogen in time, and the safety coefficient of the use environment is improved.

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 discloses a mobile hydrogen booster device, comprising: a chassis; a two-stage booster pump; a hydrogen output module for connecting to a gas cylinder; a hydrogen module including a hydrogen interface, a hydrogen inlet pipe, and a hydrogen outlet pipe; and a compressed air module including a compressed air interface, a compressed air inlet pipe, and a compressed air outlet pipe. The compressed air inlet pipe includes a compressed air three-way valve and a pneumatically controlled three-way valve. A pilot air check valve, a pilot air pressure reducing valve, a pilot air three-way valve, and a pilot valve are sequentially arranged on the first pipe, with the pilot valve connected to the front end of the hydrogen output module. A compressed air pressure reducing valve and a compressed air speed regulating valve are sequentially arranged on the second pipe. This invention, by setting up a multi-functional compressed air module, automatically controls the pilot valve to open when the pressure in the hydrogen outlet pipe reaches the rated pressure, cutting off the flow of driving air into the two-stage booster pump, thus achieving automatic gas supply cut-off. This results in a high degree of automation and high safety.

The invention relates to a solid-state hydrogen storage device and method, and the device comprises a solid-state hydrogen storage unit which comprises a solid-state hydrogen storage module, a solid-state hydrogen storage hot water unit and a solid-state hydrogen storage cold water unit; the water electrolysis hydrogen production unit comprises an electrolyte tank and a discharge electrode, and the discharge electrode is electrically connected with the power supply unit; the heat removal unit is used for transferring the heat of the electrolytic hydrogen production reaction in the electrolyte in the electrolyte tank to the solid hydrogen storage hot water unit; the hydrogen output end of the solid hydrogen storage module is connected with the hydrogen utilization unit; and the control unit is electrically connected with the solid-state hydrogen storage module, the solid-state hydrogen storage hot water unit, the solid-state hydrogen storage cold water unit, the water electrolysis hydrogen production unit and the heat removal unit, and is used for dynamically regulating and controlling the hydrogen absorption process and the hydrogen desorption process of the solid-state hydrogen storage module and the electrolysis hydrogen production reaction of the water electrolysis hydrogen production unit. The method has the advantages of being low in energy consumption, safe and green, and the problem that the fluctuation characteristic of new energy power generation contradicts with the stability requirement in the operation process of the hydrogen utilization unit is solved.

This application discloses a green hydrogen coupled coal chemical integrated scheduling and control method and system. The method includes: outputting control commands for wind farms, photovoltaic farms, and energy storage systems, and generating real-time commands for total hydrogen production load; generating power commands and start / stop commands for each electrolyzer; forming APC control commands for the electrolyzers and green hydrogen output optimization setting commands; optimizing the internal control loops of each electrolyzer using APC control; and forming hydrogen-to-carbon ratio control commands based on the green hydrogen output optimization setting commands and real-time status feedback from the coal chemical methanol synthesis unit. Using the scheme in this application, a full-chain, multi-level intelligent scheduling and advanced control system is constructed, encompassing renewable energy forecasting, source-grid-load-storage coordination, fine control of the electrolyzer cluster, and downstream coal chemical hydrogen-to-carbon ratio optimization. This achieves deep coupling and efficient collaboration between the green energy production end and the coal chemical application end.

The application discloses a carbon dioxide hydrogenation synthesis methanol system and method, relates to the technical field of methanol synthesis, and comprises a PEM electrolysis hydrogen production unit, a hydrogen pressure reducing valve, a direct air carbon capture unit, a carbon dioxide pressure reducing valve, a first buffer tank, a pressure increasing unit, a second buffer tank and a reaction unit. The hydrogen output end of the PEM electrolysis hydrogen production unit is connected with the input end of the hydrogen pressure reducing valve, the output end of the hydrogen pressure reducing valve is connected with the inlet of the first buffer tank, the carbon dioxide output end of the direct air carbon capture unit is connected with the input end of the carbon dioxide pressure reducing valve, the output end of the carbon dioxide pressure reducing valve is connected with the inlet of the first buffer tank, the outlet of the first buffer tank is connected with the input end of the pressure increasing unit, the output end of the pressure increasing unit is connected with the inlet of the second buffer tank, and the outlet of the second buffer tank is connected with the reaction unit. The application can realize the cooperation of stable pressure of a gas source, uniform mixing, efficient pressure increasing and stable reaction, reduces equipment investment and energy consumption, and is suitable for a green electricity driven operation scene.

The application provides an energy consumption optimization system and method based on a hydrogen purification process, and relates to the technical field of hydrogen production by water electrolysis.The energy consumption optimization system based on the hydrogen purification process comprises a crude hydrogen input pipeline, a first waste heat recovery pipeline, a second waste heat recovery pipeline, a deoxidization cooling unit, a first hydrogen cooling and drying unit, a second hydrogen cooling and drying unit, a third hydrogen cooling and drying unit, a hydrogen conveying pipeline before cooling, and a pure hydrogen output pipeline.The crude hydrogen input pipeline is in communication with the deoxidization cooling unit.The first waste heat recovery pipeline and the second waste heat recovery pipeline are both in communication between the deoxidization cooling unit, the first hydrogen cooling and drying unit, the second hydrogen cooling and drying unit, and the third hydrogen cooling and drying unit.The application has the beneficial effect of reducing the energy loss of the hydrogen purification process and improving the energy utilization efficiency.

The invention discloses a multi-electrolytic-bath annular direct-current bus and self-heating green alcohol reaction system which comprises a wind-light direct-current power supply system, the wind-light direct-current power supply system is connected with a plurality of electrolytic baths in parallel through an annular direct-current bus topology module, and an inner cavity of a self-heating shared pressure container is divided into an electrolytic hydrogen production cavity and a methanol synthesis cavity through a heat conduction partition plate. The electrolytic cells are arranged in the electrolytic hydrogen production cavity, the hydrogen output ends of the electrolytic cells are connected with the input end of the buffer airbag, the air carbon capture module is connected to the input end of the buffer airbag, and the ultrasonic microchannel reactor is arranged in the methanol synthesis cavity and connected with the output end of the buffer airbag. An annular direct-current bus topology is developed, millisecond-level autonomous current distribution of multiple electrolytic cells is achieved, and a shared pressure vessel integrated electrolysis and reaction unit is constructed to enable electrolysis waste heat to directly drive methanol synthesis.

The application relates to the field of fuel cell technology and discloses a fuel cell water washing system, wherein a water washing cooling device is provided with a water washing air inlet, a water washing air outlet, a water supplement inlet and a water outlet; a fuel cell stack is provided with an anode air inlet, a cathode water outlet and an internal cooling pipeline; the cathode water outlet is communicated with the internal cooling pipeline; the internal cooling pipeline is provided with a circulating water inlet and a circulating water outlet; a first water tank is provided with a first water inlet, a first water outlet and a first overflow port; a second water tank is provided with a second water inlet and a second water outlet; a hydrogen output port of a reforming hydrogen production module is connected with the water washing air inlet; the water washing air outlet is connected with the anode air inlet; the circulating water outlet is connected with the first water inlet through a first water pump; the first water outlet is connected with the circulating water inlet; the first overflow port is connected with the second water inlet; and the second water outlet is connected with the water supplement inlet through a second water pump. The application carries out water washing on hydrogen produced by reforming hydrogen production, and external water sources are not needed.

The utility model discloses a hydrogen production and power generation system which comprises a cabinet body, a water treatment module, a hydrogen production module and a power generation module, and the water treatment module is arranged in the cabinet body; the hydrogen production module is arranged in the cabinet body, is communicated with the water treatment module and is used for electrolyzing water output by the water treatment module to output hydrogen; the power generation module is arranged above the water treatment module and is communicated with the hydrogen production module so as to generate electric energy through hydrogen output by the hydrogen production module. According to the utility model, the injected tap water is treated by the water treatment module, and the treated tap water is conveyed to the hydrogen production module for electrolytic hydrogen production, so that the output hydrogen can be stored or conveyed to the power generation module, and the power generation module can convert chemical energy generated by reaction of the hydrogen serving as fuel and oxygen in the air into electric energy; therefore, integration of hydrogen energy power generation is achieved, the overall occupied space is reduced, and the cost is reduced.

A method of operating an electrolyzer includes changing a current density associated with operation of the electrolyzer based on one or more electricity input factors, or one or more hydrogen output factors, or both.

The utility model provides a clean energy power generation system applied to an island environment, the power output end of a hydrogen gas turbine unit is connected with an independent power grid of an island, the hydrogen input end of the hydrogen gas turbine unit is connected with the hydrogen output end of a hydrogen energy storage device, and the hydrogen gas turbine unit supplies hydrogen to the island based on hydrogen supplied by the hydrogen energy storage device. The hydrogen output end of the PEM hydrogen production device is connected with the hydrogen input end of the hydrogen energy storage device, the PEM hydrogen production device prepares hydrogen resources through water around the island and supplies the hydrogen resources to the hydrogen energy storage device, and the hydrogen energy storage device comprises a plurality of high-pressure hydrogen storage tanks. The high-pressure hydrogen storage tank is arranged in a high-terrain and well-ventilated area in the island environment, and the main control unit is used for controlling the electric energy supply efficiency of the power generation system according to the power utilization requirement of an independent power grid of the island and the natural environment condition of the island. According to the utility model, the stable and clean power supply function of the power generation system in the island environment can be realized, and the power generation system can adapt to the extreme natural environment.

The present application relates to the technical field of solid hydrogen storage, and particularly relates to a solid hydrogen storage device management system and method. The present application discloses a solid hydrogen storage device management system and method, wherein the solid hydrogen storage device management method comprises a hydrogen charging control method, and the hydrogen charging control method comprises the following steps: step S1, inputting cold hydrogen with a temperature not higher than 20 DEG C into the solid hydrogen storage device to charge hydrogen, and simultaneously recovering hot hydrogen output from the solid hydrogen storage device after heat exchange; step S2, detecting the pressure and temperature in the solid hydrogen storage device and the cold hydrogen flow and hot hydrogen flow in real time, and when the pressure and temperature in the solid hydrogen storage device and the cold hydrogen flow and hot hydrogen flow reach the optimal hydrogen charging balance state of the solid hydrogen storage device, the cold hydrogen inlet and the hot hydrogen outlet are closed, and the hydrogen charging is completed. In the present application, the cold hydrogen is used to cool the solid hydrogen storage device, the cold hydrogen has large specific heat capacity, high heat exchange efficiency and fast hydrogen charging speed, and the system structure is simple, convenient to use and beneficial to commercial use.

The invention discloses a combined cooling heating and power system based on biomass gasification hydrogen production and PEMFC and a working method, and belongs to the technical field of energy engineering, the combined cooling heating and power system comprises a biomass gasification subsystem used for producing synthesis gas and then treating the synthesis gas to obtain hydrogen-rich gas; the fuel cell subsystem comprises an anode and a cathode, hydrogen-rich gas is input through the anode, air is input through the cathode, and power generation is carried out; the power generation subsystem is used for receiving waste heat generated in the synthesis gas production process of the biomass gasification subsystem for power generation; the refrigeration subsystem is used for receiving waste heat of the hydrogen-rich gas input to the anode for refrigeration; and the heat supply subsystem is used for receiving the waste heat of the hydrogen-rich gas output by the biomass gasification subsystem to prepare hot water, receiving the waste heat of the hydrogen output by the anode to prepare hot water, and receiving the waste heat of the water generated by the fuel cell to prepare hot water. According to the invention, through an energy system integrating biomass gasification, a fuel cell and waste heat gradient utilization, combined cooling heating and power generation and zero carbon emission are realized.

The utility model belongs to the technical field of water electrolysis hydrogen production and hydrogenation, and discloses a water electrolysis hydrogen production and hydrogenation integrated device which comprises a hydrogen production device, a compression device, a sequence control device, a hydrogen storage device and a hydrogenation device which are arranged in a box body, the hydrogen output end of the hydrogen production device is connected with the hydrogen input end of the compression device, the compression device is connected with a hydrogen conveying device located outside the box body, and the hydrogen output end of the compression device is connected with the hydrogen input end of the sequence control device. The hydrogen output end of the sequence control device is respectively connected with the hydrogen input end of the hydrogen storage device and the hydrogen input end of the hydrogenation device, and the hydrogen output end of the hydrogenation device is connected to a hydrogenation vehicle located outside the box body; according to the utility model, the compactness and the integration level of the device can be improved, and the system efficiency and the hydrogen energy production capacity are improved.

The invention relates to the technical field of beauty instruments, in particular to a hydrogen-rich beauty instrument based on solid hydrogen storage, which comprises a massage assisting mechanism, a hydrogen filtering feeding mechanism mounted on the massage assisting mechanism, and a massage pressure face cleaning mechanism mounted on the massage assisting mechanism and communicated with the hydrogen filtering feeding mechanism, the hydrogen filtering feeding mechanism comprises a hydrogen making pipe, a sealing cover installed at the outer end of the hydrogen making pipe and a guide pipe connected to the inner end of the hydrogen making pipe. The solid hydrogen raw material is adopted as a base material for preparing hydrogen, after the solid hydrogen raw material mixed water continuously generates hydrogen in the hydrogen filtering and feeding mechanism, the generated hydrogen is in a controllable state, and trace alkaline substances can be removed after the hydrogen in the state is filtered by three filter elements; and finally, pure hydrogen output from the hydrogen filtering feeding mechanism can diffuse on the skin of the user under the guidance of the end cover and the annular bag cushion, so that the skin of the user can be brightened and darkness can be improved, and meanwhile, irritation to the skin of the user can be reduced through small-area beauty treatment.

The invention relates to a small water electrolysis hydrogen production single-tower drying system which comprises a drying tower, the top of the drying tower is connected with a hydrogen buffer tank through a hydrogen conveying pipe, the hydrogen buffer tank is connected to the upper portion of one side wall of the drying tower through a hydrogen purging pipeline, and to-be-dried hydrogen and a flame arrester are connected to the lower portion of the other side wall of the drying tower. The bottom of the drying tower is connected with the water seal tank and the top of the drying tower through regeneration pipelines, the hydrogen buffer tank is connected with a gas unit through a hydrogen output pipeline, and a blow-down valve is arranged at the bottom of the hydrogen buffer tank. According to the small-sized water electrolysis hydrogen production single-tower drying system, the single-tower structural design is adopted, the number of valves, pipelines and related accessories is remarkably reduced, the equipment structure is more compact, the occupied area is small, and therefore the equipment investment cost and the installation and maintenance cost are effectively reduced; complex on-line, time sequence synchronization and on-line coordination control in a multi-tower process are not needed, the control system is simpler and more reliable, and operation complexity, potential fault points and maintenance difficulty are reduced.

The invention discloses a self-powered in-situ hydrogen production plant maintenance device which comprises a container body, an in-situ hydrogen production module, an energy supply module and an energy storage module. Wherein the container body is used for containing liquid and supporting plants; the in-situ hydrogen production module is arranged in the liquid cavity of the container body and is used for producing hydrogen by electrolyzing water; the in-situ hydrogen production module is provided with a hydrogen output end and an oxygen output end, the hydrogen output end is communicated with the liquid cavity of the container body, and the oxygen output end is communicated with the atmosphere; the energy supply module is used for providing electric energy for the device; the energy storage module is electrically connected with the energy supply module and the hydrogen production module and used for storing electric energy and supplying power to the in-situ hydrogen production module. According to the device, hydrogen can be continuously and stably generated and dissolved in water in the container body to form a hydrogen-rich water environment, so that the fresh-keeping time of fresh flowers is effectively prolonged or the growth and flowering phase regulation of potted plants are promoted, and the device is green, environment-friendly, safe and reliable.

The application discloses a kind of control method, system, device and storage medium of fuel cell system, the control method includes: obtaining the temperature of fuel cell stack in the process of power generation;Obtain the temperature of new hydrogen output by buffer tank;Obtain the ambient temperature of fuel cell system;Determine whether the stack temperature meets the first preset temperature range, obtain the first determination result;Determine whether the new hydrogen temperature meets the second preset temperature range, obtain the second determination result;Determine whether the ambient temperature meets the third preset temperature range, obtain the third determination result;Based on the first determination result, the second determination result and the third determination result, adjust the heat dissipation capacity of fuel cell system and liquid hydrogen heating mode.The embodiment of the application can improve the heat dissipation capacity of air cooling system in air-cooled fuel cell system using liquid hydrogen supply and the utilization rate of liquid hydrogen cold energy, and can be widely applied to fuel cell technology.