23 results about "Hydrogen output" patented technology

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 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.

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.

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 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.

A hydrogen production system comprises a hydrogen pyrolysis reactor which has a hydrocarbon input, an electrical input and at least one hydrogen output. The hydrogen production system also comprises a hydrogen-fuelled generator. Means are provided to route part of the hydrogen from one of the at least one hydrogen outputs to the hydrogen-fuelled generator. The hydrogen-fuelled generator then generates an electrical output, which is routed to the electrical input of the hydrocarbon pyrolysis reactor. A related method of operating a hydrogen production system is also described.

This invention relates to a gas-solid hybrid hydrogen storage and refueling station system and its refueling control method, belonging to the field of solid-state hydrogen storage technology. It aims to provide a safe, economical, and high-performance hydrogen storage solution for medium-sized hydrogen refueling stations through an innovative solid-dominant gas-solid hybrid architecture. The system includes a gaseous storage module, a solid-state storage module, a buffer storage tank, a refueling device, an unloading station, and a control module. The control module includes a control unit and a monitoring unit. The monitoring unit monitors the refueling flow rate and refueling time of the refueling device in real time and transmits the detected signals back to the control unit. The control unit calculates the hydrogen demand during peak and / or off-peak periods based on the detection signals from the monitoring unit. Before the peak refueling period, it controls the solid-state storage module to release hydrogen into the buffer storage tank in advance and adjusts the hydrogen output ratio between the gaseous and solid-state storage modules. This significantly reduces the safety risks and safety distance requirements of the hydrogen refueling station.

This invention discloses a hydrogen liquefaction system powered by photovoltaic and wind power generation. The system includes: an electrolytic hydrogen production unit, a first cold box, a second cold box, and a third cold box. The hydrogen outlet of the electrolytic hydrogen production unit is connected to the inlet of a cooler, a compressor, and a hydrogen storage tank via a first pipeline. The hydrogen output from the hydrogen storage tank is cooled by the first, second, and third cold boxes and then stored in a liquid hydrogen storage tank. The system includes a propane circulation loop providing cooling for the first cold box, cooler, and compressor; a liquid nitrogen circulation loop providing cooling for the first and second cold boxes; and a low-temperature hydrogen circulation loop providing cooling for the first, second, and third cold boxes. This invention also discloses a hydrogen liquefaction process. This system uses solar and wind power to produce hydrogen energy and achieves energy storage through methods such as reservoir water storage and increasing the capacity of the hydrogen storage tank, overcoming the volatility of renewable energy sources and ensuring the normal and stable operation of the hydrogen liquefaction system.

The application discloses a reaction method of a hydrogen fuel cell, which comprises the following steps: (1) calculating the required number N of stacks for the reaction of the hydrogen fuel cell according to a formula, and determining the number of working stacks according to the calculated number N of stacks; (2) continuously inputting hydrogen into a hydrogen supply pipeline, and the hydrogen enters the N stacks for reaction after being decompressed by an ejector; and (3) continuously circulating the reacted hydrogen output from the stacks to the hydrogen supply pipeline through a reflux assembly, mixing the hydrogen with the hydrogen in the hydrogen supply pipeline, and then sending the hydrogen into the N stacks for reaction again. The reaction method can effectively match the required power of a user, ensure the uniform distribution of hydrogen in each stack, avoid the lack of hydrogen in the stacks, and ensure that the gas supply pressure of the system is not too low. Moreover, the reaction method can realize the recycling of hydrogen, avoid the waste of hydrogen, and improve the hydrogen utilization rate and the overall reaction efficiency of the system.

The utility model provides a hydrogen production system balance unit and a hydrogen production system, the hydrogen production system balance unit comprises: a first gas-liquid separator configured to be communicated with a hydrogen outlet of an electrolytic bath; the second gas-liquid separator is configured to be communicated with an oxygen outlet of the electrolytic bath; two ends of the first pipeline are respectively communicated with the first gas-liquid separator and the second gas-liquid separator; the first one-way valve is connected to the first pipeline in series, and the first one-way valve is configured to convey liquid from the first gas-liquid separator to the second gas-liquid separator in a one-way mode; the first valve is connected to the first pipeline in series. According to the hydrogen production system, the first one-way valve and the first valve are arranged on the first pipeline, so that hydrogen and oxygen can be effectively separated, the purity of the hydrogen and the purity of the oxygen are improved, the safety of the hydrogen production system is improved, the hydrogen output pressure and the oxygen output pressure can be independently controlled, and when the hydrogen production system is maintained or troubleshot, the safety of the hydrogen production system is improved. And the maintenance cost can be reduced.

This application proposes a water system comprising: a purification module; a hydrogen-rich module, the inlet of which is connected to the outlet of the purification module; a refrigeration module, the inlet of which is connected to the outlet of the purification module; a pure water jug, the inlet of which is connected to the outlet of the purification module; a hydrogen mixing module, the inlet of which is connected to the outlets of the pure water jug ​​and the refrigeration module, and the gas inlet of which is connected to the hydrogen outlet of the hydrogen-rich module. The hydrogen mixing module is used to mix the water output from the pure water jug ​​and the hydrogen output from the hydrogen-rich module to form room-temperature hydrogen-rich water, and also to mix the water cooled by the refrigeration module with the hydrogen output from the hydrogen-rich module to form hydrogen-rich chilled water; a control device; and a kettle, which is connected to the outlets of the refrigeration module and the hydrogen mixing module under the control of the control device. Its functions are more diversified.

This invention relates to the field of combined heat and power (CHP) energy system technology, and discloses a high-efficiency CHP system based on hydrogen-oxygen synergistic conversion. The system includes a housing with a water supply module inside, and further comprises: an electrolyzer with its inlet connected to the water supply module; a hydrogen production cabinet electrically connected to the electrolyzer; a solid hydrogen storage tank with its inlet connected to the hydrogen output of the electrolyzer; an oxygen cylinder with its inlet connected to the oxygen output of the electrolyzer; a chiller connected to the solid hydrogen storage tank; a fuel cell with its hydrogen input connected to the solid hydrogen storage tank; and a thermal management module composed of water pipes passing through the electrolyzer and the fuel cell. The housing also includes a control panel and an electrical cabinet for electrical control and connection between the various modules, thereby achieving a four-way energy closed loop of electrolytic hydrogen and oxygen production, hydrogen storage, fuel cell power generation, synergistic electrothermal output, and waste heat recovery.

This invention discloses a testing device and method for the high-frequency pulse characteristics and flow self-calibration of a hydrogen injection valve. The method includes the following steps: setting initial parameters and a target flow rate for the high-frequency pulse of the hydrogen injection valve, and constructing a nonlinear mapping model between the initial pulse duty cycle and the hydrogen output flow rate; performing a multi-gradient pulse frequency injection test; acquiring dynamic hydrogen flow rate data in real time, and simultaneously acquiring flow data during the pulse injection process; calculating the deviation between the actual flow rate and the target flow rate, and constructing a dynamic deviation evaluation model based on the stoichiometric ratio of the hydrogen fuel cell; iteratively correcting the pulse width parameter based on the deviation value, and applying a fuzzy PID control algorithm to achieve adaptive parameter optimization; outputting a calibration parameter set that meets the accuracy threshold, and generating a final parameter set containing a frequency-pulse width two-dimensional calibration matrix. This invention effectively solves the problems of flow deviation and response lag that easily occur in the hydrogen supply of the hydrogen injection valve under high-frequency pulse conditions in traditional hydrogen fuel cell systems.

This invention relates to a spiral-structured hydrogen blending combustion system, comprising a burner, a fuel passage, and an air passage. A vertical pipe is used for hydrogen input, and a horizontal pipe is used for hydrogen output, allowing hydrogen to be blended with natural gas. The horizontal pipe extends in the direction of natural gas flow, and rotating turbulence-inducing blades are arranged on the outer wall of the horizontal pipe. Hydrogen outlet holes are provided between the rotating turbulence-inducing blades. In this invention, hydrogen enters from the front with the blade structure, flowing perpendicular to the natural gas to initially turbulently mix it. After the hydrogen is drawn out at the inlet of the blade passage and mixed with the natural gas, the rotating blade structure causes the mixed gas to change its flow direction as it flows within, forming vortices to enhance turbulence and mixing. Natural gas is then allowed to enter the flow channel formed by the blades, further enhancing the turbulence effect and strengthening the hydrogen blending.

The utility model provides a kind of hydrogen filling connection tool, belong to pipeline connection field, including hydrogen output pipeline, hydrogen connecting pipeline, connecting assembly and anti-breaking assembly;Hydrogen output pipeline and hydrogen connecting pipeline butt joint connection one end;The utility model: the connecting block of plug-in connector two sides is inserted from the slot in the front end inner wall of connecting sleeve, by rotating plug-in connector so that connecting block spirally enters inside sliding slot, when connecting block slides to the inside of the accommodating cavity enlarged at one end of sliding slot, stop rotating, plug-in connector is fixedly connected with butt joint, since the inside movable installation of butt joint has push ring, plug-in connector is inserted to the inside of butt joint and moves when extruding push ring, push ring extrudes spring and slides back, when plug-in connector stops, spring reaction force is moved outward by push ring, plug-in connector surface connecting block is located in the accommodating cavity in one end of sliding slot at this time, so that butt joint is fixedly connected with plug-in connector, it is convenient to quickly connect and disassemble pipeline.

The application discloses a kind of control method and control system of fuel cell hydrogen pressure.It is controlled method includes: hydrogen release working condition is divided into hydrogen release sufficient and hydrogen release insufficient, and hydrogen pressure into stack is divided into overpressure dangerous area, overpressure area, working area, low pressure area and low pressure dangerous area;The linkage relationship of hydrogen release working condition and hydrogen pressure into stack is established, wherein, linkage relationship adapts hydrogen release output characteristic and power demand of electric pile;Real-time acquisition hydrogen release working condition and hydrogen pressure into stack, and based on linkage relationship, hydrogen supply valve opening and electric pile output power are cooperatively regulated.The technical scheme of the application can effectively alleviate the situation of hydrogen supply insufficient, improve electric pile operating efficiency and service life.

This application relates to the field of hydrogen production technology and discloses a co-production equipment for hydrogen production coupled with high-value biomass products via water electrolysis. The equipment includes: a liquid supply module, an electrolyzer, a gas treatment module, and a liquid treatment module. The electrolyzer is connected to the liquid supply module to receive an organic mixture supplied by the module. The gas treatment module includes a gas-liquid separator and a hydrogen output pipe. The inlet of the gas-liquid separator is connected to the cathode output side of the electrolyzer, and the exhaust port of the gas-liquid separator is connected to the hydrogen output pipe. The liquid treatment module includes a crystallization vessel and an organic product output pipe. The crystallization vessel is connected to the anode output side of the electrolyzer to mix the anode reaction solution with acid. The organic product output pipe is connected to the crystallization vessel to discharge the crystallized organic product from the vessel. This co-production equipment can achieve low-energy consumption, high selectivity, and high-efficiency synergistic production of hydrogen and high-value organic products.

The invention relates to the technical field of offshore energy conversion, in particular to an electricity-hydrogen-ammonia bidirectional conversion system of an offshore energy island and a debugging method. The electric hydrogen ammonia bidirectional conversion system comprises a volatility renewable energy source module, an energy medium bidirectional conversion module, a medium supply module, a power generation and energy routing module, an auxiliary module and an intelligent control module. The energy medium bidirectional conversion module is provided with a hydrogen production function unit, a synthesis function unit and a cracking function unit; the medium supply module is provided with a water production unit and a nitrogen production unit; and a hydrogen output end of a cracking function unit configured by the power generation and energy routing module is connected with a fuel input end of the power generation unit. Through the mode, the technical problem that in an offshore energy island scene in the prior art, renewable energy consumption and stable cooperative operation of system energy supply are difficult to consider at the same time is solved, and a key hardware system support is provided for subsequent efficient, stable and autonomous offshore energy supply.

This invention provides a hydrogen production and storage pipeline structure and energy system, relating to the technical field of hydrogen production and storage equipment. It includes: a hydrogen production pipeline connecting a water storage device to a hydrogen production device, providing inlet water to the hydrogen production device and / or receiving outlet water; a connecting pipeline connecting the hydrogen production device and a gas-liquid separator, allowing hydrogen output from the hydrogen production device to enter the gas-liquid separator for gas-liquid separation; a hydrogen storage pipeline sequentially connecting the gas-liquid separator, a drying and regeneration device, and a hydrogen storage tank with heating and cooling functions, allowing hydrogen to enter the hydrogen storage tank for storage after passing through the drying and regeneration device from the gas-liquid separator; and a hydrogen supply pipeline connecting the hydrogen storage tank and a hydrogen-using device, allowing hydrogen to be supplied from the hydrogen storage tank to the hydrogen-using device; the connecting pipeline is configured to partially pass through the hydrogen storage tank to cool the hydrogen entering the gas-liquid separator, solving the problem of complex pipeline layout in existing systems.

This invention discloses a liquid hydrogen storage tank system and its operation method using a hydrogen fuel cell for energy recovery. The system includes a liquid hydrogen storage tank and a hydrogen fuel cell. The liquid hydrogen storage tank has a liquid hydrogen inlet and outlet and a gaseous hydrogen outlet. The outlet of the liquid hydrogen storage tank is connected to a circulation pipeline and a gaseous hydrogen outlet pipeline, respectively. A circulation pump and a chiller are connected to the circulation pipeline, respectively. The gaseous hydrogen outlet pipeline is sequentially connected to the hydrogen fuel cell and the chiller. This invention recovers the heat of combustion from the evaporation of gaseous hydrogen during long-term storage in the liquid hydrogen storage tank. On the one hand, it effectively reduces heat leakage from the external environment into the liquid hydrogen storage tank; on the other hand, the hydrogen fuel cell efficiently recovers the heat of combustion of gaseous hydrogen and converts it into part of the electrical energy of the chiller, providing long-term cooling for the liquid hydrogen storage tank, reducing the internal temperature of the liquid hydrogen storage tank, reducing liquid hydrogen evaporation loss, improving energy utilization efficiency, and achieving full utilization of energy.