252 results about "Hydrogen output" patented technology

The invention discloses a VPSA hydrogen production device control method and system, and relates to the technical field of hydrogen production machines.The method comprises the steps that methyl alcohol is fed into a cracking device and cracked through a catalyst to generate hydrogen-rich gas, the hydrogen-rich gas is fed into a VPSA decarburization device, and the decarburized hydrogen-rich gas is output; introducing into an adsorption bed I to obtain high-purity hydrogen, performing pulse back flushing on an adsorption bed II by using the high-purity hydrogen, and starting a microwave generator and a vacuum pump to perform desorption; after the adsorption bed II completes desorption, switching the direction of the adsorption bed, and performing the same desorption operation on the adsorption bed I to complete regeneration of the adsorption bed I; acquiring equipment operation data in real time by using a sensor, and dynamically adjusting set data; the adsorption bed I and the adsorption bed II alternately operate, and the operation mode is adjusted in real time. By introducing a comprehensive real-time monitoring and dynamic adjusting mechanism and accurately controlling the alternate operation state of the adsorption bed I and the adsorption bed II, efficient regeneration of the adsorption beds and continuous and stable high-purity hydrogen output are realized.

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.

A burner includes a first pulverized coal entrained fluid flow conduit; an inner hydrogen conduit; and a hydrogen oxidant conduit located between the first pulverized coal entrained fluid flow conduit and the inner hydrogen conduit; an outlet of the inner hydrogen conduit is located at a first distance from an outlet of the hydrogen oxidant conduit such that hydrogen output from the outlet of the inner hydrogen conduit reaches the outlet of the hydrogen oxidant conduit through a portion of the hydrogen oxidant conduit; the outlet of the hydrogen oxidant conduit is a second distance away from the outlet of the first pulverized coal entrained fluid flow conduit; the first pulverized coal entrained fluid flow conduit is configured such that the hydrogen and the hydrogen oxidant output from the outlet of the hydrogen oxidant conduit pass through a portion of the first pulverized coal entrained fluid flow conduit to be output from the burner.

The fuel cell system comprises a gas source, a heat exchange device and a galvanic pile, a hydrogen source is connected with the heat exchange device, hydrogen output by the hydrogen source flows through the heat exchange device, the heated hydrogen is input into the galvanic pile, air output by an air source is input into the galvanic pile, and the galvanic pile is connected with the heat exchange device. The hydrogen and the air are subjected to electrochemical reaction in the electric pile; the electric pile is connected with the heat exchange device, and tail gas of the electric pile flows through the heat exchange device. Before hydrogen and air are input into the galvanic pile according to the set volume ratio, the hydrogen flows through the heat exchange device to be preheated and then is input into the galvanic pile, the hydrogen and the air are subjected to an electrochemical reaction in the galvanic pile to generate tail exhaust fluid, and the tail exhaust fluid flows through the heat exchange device to be subjected to heat exchange and then is discharged. In the whole process, hydrogen and air are subjected to electrochemical reaction in the galvanic pile to generate tail exhaust fluid, and the tail exhaust fluid is used for preheating the hydrogen, so that the utilization of heat carried by the tail exhaust fluid is realized.

The invention discloses an isolated network green power-green hydrogen-green ammonia three-flexible coupling integrated system and an operation method. The system comprises a wind-light storage flexible power generation system, a renewable energy flexible water electrolysis hydrogen production system and a flexible low-temperature low-pressure ammonia synthesis system. The wind and light storage flexible power generation system is used for carrying out green energy power generation through wind power generation equipment and photovoltaic power generation equipment, and carrying out flexible adjustment on the output power generation amount according to a wind power and photovoltaic output curve coupled by electric energy storage equipment; the renewable energy flexible water electrolysis hydrogen production system is used for flexibly adjusting the hydrogen output quantity by starting and stopping the number of hydrogen production electrolytic cells in the hydrogen electrolysis hydrogen production device and the hydrogen energy storage equipment; the flexible low-temperature and low-pressure ammonia synthesis system is used for automatically reducing or increasing the load of the ammonia reactor and generating green ammonia according to the hydrogen output quantity of the renewable energy flexible electrolytic water hydrogen production system and the nitrogen output quantity of the air separation equipment. The problems that a stable power supply is needed for traditional ammonia hydrogen production and flexible production cannot be achieved due to the fact that traditional ammonia synthesis is limited by the narrow load application range are solved.

The invention discloses a pressure swing adsorption device of a hydrogen production system. The pressure swing adsorption device comprises a first adsorption tower, a second adsorption tower, a waste gas emission unit, a hydrogen input pipe, a hydrogen output pipe, a program control valve group and a PLC (Programmable Logic Controller) control system, according to the device, a plurality of adsorption layers are respectively arranged in the first adsorption tower and the second adsorption tower, and the pressure change of each adsorption tower in different adsorption and regeneration stages is controlled, so that the intelligent control of the pressure swing adsorption hydrogen production process is realized, and the first adsorption tower and the second adsorption tower alternately perform adsorption and regeneration; compared with the traditional two independent steps of deoxidation and drying, the method has the advantages that the influence on the purification effect of hydrogen due to flow connection is avoided, the hydrogen purification flow is efficiently integrated, and the purification effect and efficiency of hydrogen are improved; by controlling the opening and closing time and sequence of the program control valve group, when one adsorption tower performs adsorption operation, the other adsorption tower performs regeneration operation, so that the overall efficiency and yield of the system are improved.

The utility model discloses a hydrogen filling connecting device, and belongs to the technical field of connecting structures. A hydrogen filling connecting device comprises an output connector rotationally connected with a hydrogen output pipe and an input connector fixedly connected with a hydrogen input pipe, the hydrogen output pipe is rotationally arranged in the output connector, and a screw joint clamping block is arranged on the inner wall of the output connector. A sealing gasket is arranged at the end, close to the hydrogen output pipe, of the input connector, threaded teeth are arranged on the outer wall of the input connector, the central angle corresponding to the threaded teeth ranges from 60 degrees to 180 degrees, the number of the threaded teeth is at least two, and the threaded teeth are evenly distributed on the outer wall of the input connector in the circumferential direction. The output connector is provided with a locking mechanism connected with the input connector in an inserted mode. The sealing device has the advantages of being convenient to operate manually and good in sealing effect.

The invention discloses a mobile standby power generation system based on a methanol-to-hydrogen fuel cell system and a control method thereof. The technical problems that a combustion heating system needs to be arranged for existing methanol hydrogen production, the structure is complex, the risk is high, and energy supply cannot be adapted to an outdoor mobile power generation scene are mainly solved. The system comprises a methanol material tank, a pure water material tank, an evaporator, a gasification superheater, a methanol water reforming reactor, an air cooler, a gas-liquid separator, a PSA (Pressure Swing Adsorption) tower for separating desorbed gas and pure hydrogen, a methanol part catalytic oxidation reactor and a hydrogen fuel electric pile taking hydrogen output by the PSA tower as a material source, wherein the evaporator, the gasification superheater, the methanol water reforming reactor, the air cooler and the gas-liquid separator are sequentially connected to the downstream of a mixing tank; the inverter and the storage battery pack are electrically connected with the hydrogen fuel electric pile in sequence; a first heat exchanger is arranged in a pipeline between the mixing tank and the evaporator, and a second heat exchanger is arranged in a pipeline between the evaporator and the gasification superheater. The power generation system has the advantages of high heat recovery efficiency, high raw material utilization rate, low system energy consumption and the like.

The utility model discloses an oxyhydrogen atomizing machine which comprises a water storage tank, an electrolytic bath, an oxygen water collector, a hydrogen water collector and two groups of gas path radiators, the water outlet end of the water storage tank is connected with the water inlet end of the electrolytic bath; the electrolyte enables water to be decomposed into oxygen and hydrogen under the action of direct current in the electrolytic bath; the oxygen output end of the electrolytic bath is connected with the water inlet end of the water storage tank through a group of gas path radiators, the oxygen output end of the water storage tank is connected with the oxygen water collector, and dried and cooled oxygen is obtained after separation by the oxygen water collector; the hydrogen output end of the electrolytic bath is connected with the hydrogen water collector through the other group of gas path radiators; and dry and cooled hydrogen is obtained after separation by the hydrogen water collector. The gas path radiator is additionally arranged at the gas output end of the electrolytic bath, gas electrolyzed by the electrolytic bath is pre-cooled and then separated through the water collector, finally, dry and pure hydrogen and oxygen are obtained, and influences on subsequent gas purity, the service life of equipment and safety are effectively avoided.

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.

A start-up architecture for a fuel cell includes a fuel cell having a hydrogen input and an oxygen source input and a hydrogen output for outputting residual hydrogen not used in the fuel cell reaction. The hydrogen output is connected to the hydrogen input via a mixer in a hydrogen loop. The architecture also includes a bypass loop, bypassing the mixer, between the hydrogen output and the hydrogen input and a control valve (CV1) in the bypass loop between the hydrogen output and the hydrogen input. A hydrogen start-up stored energy source is connected to the hydrogen input via a hydrogen start-up line and an oxygen source start-up stored energy source is connected to the oxygen source input via an oxygen source start-up line. During a fuel cell start up process, the architecture is configured to provide hydrogen and oxygen to the startup lines.

The utility model discloses a methanol reforming and electrolyzed water complementary hydrogen production system capable of balancing wind-solar power fluctuation, which relates to the technical field of hydrogen production and comprises a water tank, the water tank is connected with electrolytic bath hydrogen production equipment through a first pipeline, and a first proportional valve and a first flowmeter are arranged on the first pipeline; the methanol fuel tank is connected with the methanol steam reforming hydrogen production equipment through a second pipeline, and a second proportional valve and a second flow meter are arranged on the second pipeline; the two ends of the third pipeline are connected with the first pipeline and the second pipeline respectively, and a third proportional valve, a third flow meter and a first one-way valve are arranged on the third pipeline; and a hydrogen storage tank. According to the methanol reforming and electrolyzed water complementary hydrogen production system capable of balancing the wind-light power fluctuation, the electrolytic bath hydrogen production equipment and the methanol steam reforming hydrogen production equipment are intelligently controlled to work cooperatively according to the input wind-light power fluctuation, so that the stable hydrogen output quantity is ensured.

The PEM water electrolysis hydrogen production system comprises a hydrogen storage tank, a PEM electrolytic bath, a water supply system and a power conversion device, the pure water input end of the PEM electrolytic bath is connected with the water supply system, the power input end of the PEM electrolytic bath is connected with the power conversion device, and the hydrogen output end of the PEM electrolytic bath is connected with the hydrogen storage tank; and the power conversion device is configured to adjust the output current based on the real-time pressure of the hydrogen storage tank, so that the hydrogen production load of the PEM electrolytic bath is controlled, and the pressure of the hydrogen storage tank is stable. The PEM water electrolysis hydrogen production technology is applied to the hydrogen production, storage and adding integrated hydrogen energy supply station, the real-time pressure of the hydrogen storage tank is collected, the output current of the power conversion device is adjusted through the PID algorithm, the hydrogen production load of the PEM electrolytic cell is controlled, the pressure of the hydrogen storage tank is stable, and meanwhile frequent starting and stopping of the electrolytic cell are avoided.

A wind turbine is provided including a generator, a base, a nacelle, a tower having a first end mounted to the base and a second end supporting the nacelle, an electrolytic unit electrically powered by the generator to produce hydrogen from an input fluid, in particular water, and a fluid supply assembly for supplying the input fluid from a fluid inlet arranged below a water level to the electrolytic unit arranged above the water level, wherein the hydrogen produced can be taken out of the wind turbine by the hydrogen output.

The utility model discloses a hydrogen fuel cell automobile high-pressure hydrogen storage tank pressure energy recovery device which comprises a first-stage hydrogen pressure reduction module, a second-stage hydrogen pressure reduction module, a third-stage hydrogen pressure reduction module and an electric energy storage module which are sequentially connected. The third-stage hydrogen pressure reduction module is communicated with the hydrogen output pipeline; a first hydrogen pressure regulation transmission pipeline is also communicated between the primary hydrogen pressure reduction module and the hydrogen output pipeline; the second-stage hydrogen pressure reduction module is communicated with the hydrogen output pipeline through a second hydrogen pressure regulation transmission pipeline; through the cooperation of the multi-stage hydrogen pressure reduction module and the electric energy storage module, the pressure energy of high-pressure hydrogen in the high-pressure hydrogen storage tank is converted into electrochemical energy to the maximum extent, and the electrochemical energy is stored in the storage battery, so that the waste of the pressure energy in the high-pressure hydrogen storage tank is avoided, and the energy utilization efficiency of the fuel cell automobile is improved; and the comprehensive energy consumption of the automobile is reduced.

The invention discloses an electric hydrogen and steam co-production system based on industrial fuel cell-steam heat pump coupling. The hybrid system mainly comprises a wind generating set, an alkaline electrolytic bath, a hydrogen tank, a proton exchange membrane fuel cell, a heat storage tank and a steam heat pump. The power generation output end of the wind driven generator is connected with the factory power grid and then connected with the alkaline electrolytic cell unit, the hydrogen output end of the alkaline electrolytic cell is connected with the hydrogen compressor and compressed into the hydrogen tank, the output end of the hydrogen tank is connected with the hydrogen input end of the fuel cell, and the power generation output end of the fuel cell is connected with the factory power grid. And industrial power energy scheduling is realized. According to the invention, heat control of the proton exchange membrane fuel cell and the alkaline electrolytic cell is realized by heat exchange between the circulating cooling water system and the heat exchanger, waste heat is upgraded by the steam heat pump and heated into saturated steam of more than 130 DEG C, and the saturated steam is connected into a chemical plant to meet steam requirements. According to the invention, unstable wind power is converted into chemical energy of hydrogen for storage.

The utility model discloses a water electrolysis hydrogen production device which comprises a combustion boiler, an alkali liquor circulation pipeline, a heat exchange circulation pipeline and a hydrogen output pipeline. The alkali liquor circulation pipeline is mainly used for leading alkali liquor obtained after hydrogen separation and oxygen separation back to the electrolytic bath; a first heat exchanger and a second heat exchanger located at the downstream of the first heat exchanger are arranged on the heat exchange circulation pipeline, the first heat exchanger and the combustion chamber are arranged in a heat exchange mode, and the second heat exchanger and the alkali liquor circulation pipeline are arranged in a heat exchange mode; the hydrogen output pipeline is arranged on the hydrogen production side of the electrolytic cell and is used for conveying crude hydrogen produced on the hydrogen production side to downstream process equipment; and a fuel inlet of the combustion chamber is connected with the hydrogen output pipeline through a fuel supply pipeline and can be switched into a connected state and a disconnected state. According to the water electrolysis hydrogen production device, the starting efficiency of the water electrolysis hydrogen production process can be greatly improved, and the operation efficiency of the whole device is improved.

The system comprises a coal-fired boiler power generation device, a new energy power generation device, a water electrolysis device and a storage device. The coal-fired boiler power generation device comprises a boiler, an oxygen-enriched burner and a hydrogen burner, wherein the oxygen-enriched burner and the hydrogen burner are arranged in a hearth of the boiler. The water electrolysis device is electrically connected with the coal-fired boiler power generation device and the new energy power generation device; the storage device comprises an oxygen storage tank and a hydrogen storage tank, the input end of the oxygen storage tank is connected with the oxygen output end of the water electrolysis device, and the output end of the oxygen storage tank is connected with the oxygen-enriched combustor; the input end of the hydrogen storage tank is connected with the hydrogen output end of the water electrolysis device, and the output end of the hydrogen storage tank is connected with the hydrogen combustor. The energy storage and peak regulation device has the advantages that the stable combustion capacity of a coal-fired boiler power generation device (particularly a boiler) is improved, and the energy storage and peak regulation capacity of a power plant is improved.

The invention provides a combined heat and power methanol preparation system, comprising: a hydrogen production system for preparing hydrogen by using renewable energy; a working medium input end of the methanol synthesis system is connected with a hydrogen output end of the hydrogen production system, and a steam output end of the methanol synthesis system is connected with a steam input end of the steam utilization system; the working medium input end of the gas combined power generation system is connected with the unreacted gas output end of the methanol synthesis system, and the power output end of the gas combined power generation system is connected with the power input end of the hydrogen production system and the power input end of the power utilization system; and the dead steam output end of the gas combined power generation system is connected with the steam input end of the steam utilization system. According to the combined heat and power methanol preparation system disclosed by the invention, steam and unsynthesized gas in the preparation process of methanol are utilized, and energy gradient and full utilization of the system are realized, so that the comprehensive efficiency of the system is effectively improved.

The utility model discloses a ship power hydrogen storage and energy supply device which comprises a hydrogen storage module, a reaction module, a power supply end group, a switching module and a control module, the reaction module at least comprises a first electric pile assembly and a second electric pile assembly, and the first electric pile assembly and the second electric pile assembly are both connected with the power supply end group. The switching module is in butt joint with a hydrogen output port of the hydrogen storage module, a hydrogen input port of the first galvanic pile assembly and a hydrogen input port of the second galvanic pile assembly, the control module is connected with the switching module to control the switching module to be at least switched between a first state and a second state, and in the first state, the hydrogen storage module is in butt joint with the hydrogen input port of the first galvanic pile assembly and the hydrogen input port of the second galvanic pile assembly. In the first state, the hydrogen output port of the hydrogen storage module is communicated with the hydrogen input port of the first electric pile assembly, and in the second state, the hydrogen output port of the hydrogen storage module is communicated with the hydrogen input port of the second electric pile assembly; the design ensures the durability of the galvanic pile assembly, and the continuous operation meets the power demand of the ship.

The utility model discloses an electric flame stove capable of producing hydrogen and eliminating ozone. The electric flame stove comprises a stove body, a panel, a hearth arranged on the panel, a burner and a plurality of plasma ejectors which are arranged in the hearth, and a small hydrogen production device arranged in the stove body, the hydrogen production device comprises a cathode bar and an anode bar which are positioned on the left side and the right side in the hydrogen production device; a diaphragm is arranged between the cathode bar and the anode bar and divides an inner cavity of the hydrogen production device into a hydrogen cavity and an oxygen cavity which are in a sealed state; and a hydrogen output port and an oxygen output port are respectively formed in the hydrogen cavity and the oxygen cavity on the shell of the hydrogen production device. The small hydrogen production device is arranged in the stove body, a small amount of hydrogen is provided for the hearth through the combustor, ozone is diluted through combustion, and harm of ozone to the human body is prevented; meanwhile, potential safety hazards of a hydrogen tank in the prior art are eliminated.

The invention provides a combined heat and power methanol and hydrogen combined cycle preparation system, comprising: a hydrogen production system for preparing hydrogen by using renewable energy; a working medium input end of the methanol synthesis system is connected with a hydrogen output end of the hydrogen production system; a working medium input end of the gas combined power generation system is connected with an unreacted gas output end of the methanol synthesis system; the working medium input end of the methanol cracking system is connected with the methanol output end of the methanol synthesis system, and the carbon dioxide output end of the methanol cracking system is connected with the working medium input end of the methanol synthesis system. According to the methanol and hydrogen combined cycle preparation system with combined supply of heat and power disclosed by the invention, steam and unsynthesized gas in the preparation process of methanol are utilized, and the methanol cracking system is utilized to prepare hydrogen, so that energy gradient and full utilization of the system are realized, and the comprehensive efficiency of the system is effectively improved.

The invention discloses a PEM electrolytic bath test system and method, and is applied to the technical field of water electrolysis hydrogen production, the PEM electrolytic bath test system is characterized in that a water outlet of a water storage and exhaust unit is connected with a deionized water inlet of a PEM electrolytic bath, and a gas inlet of the water storage and exhaust unit is connected with an oxygen outlet of the PEM electrolytic bath; the water supply test unit is arranged at the bottom of the water storage exhaust unit; a gas inlet of the gas water content testing unit is connected with a gas outlet of the water storage and gas exhaust unit; a gas inlet of the hydrogen output test unit is connected with a hydrogen outlet of the PEM electrolytic cell; the test data recording unit is respectively connected with the water supply test unit, the gas water-containing test unit and the hydrogen output test unit. Therefore, the operation time and the working current of the PEM electrolytic cell, the supply amount of the deionized water, the residual amount of the deionized water, and the water content and the hydrogen content in the mixed gas can be measured and recorded, so that the accurate measurement of the anode water seepage amount and the cathode hydrogen seepage amount can be realized.

The utility model belongs to the technical field of bathing machines, and particularly relates to a hydrogen-rich water machine with a water drinking and bathing integrated structure, which comprises a water supply system, a water purifier, a water heater, a water temperature adjusting device, a booster water pump, a hydrogen-rich water machine and a bathtub, the water purifier, the water heater and the water temperature adjusting device are connected with the water supply system; the water temperature adjusting device and the water purifier are connected with the input end of the booster water pump, and the booster water pump is connected with the hydrogen-rich water machine; the hydrogen-rich water machine is provided with a hydrogen output port and further provided with a three-way electromagnetic valve, one end of the three-way electromagnetic valve is connected with a molecular pump pipeline, and the other end of the three-way electromagnetic valve is connected with a faucet pipeline. The faucet is arranged on the bathtub, and the bathtub is further provided with a control panel; the bathtub is further provided with a hydrogen absorption device, and the hydrogen absorption device is connected with the hydrogen output port. The hydrogen-rich water machine with the water drinking and bathing integrated structure can achieve the functions of bathing, water drinking and hydrogen absorption, and the requirements of users are met.

The utility model discloses a green hydrogen supply system with a hydrogen storage branch, which comprises a hydrogen production unit, the hydrogen output end of the hydrogen production unit is connected with the input end of a buffer tank through a main pipeline and a branch pipeline which are connected in parallel, the buffer tank is connected with a buffer tank pressure gauge, and the output end of the buffer tank is connected with an outlet compressor. The output end of the outlet compressor is connected with a system outlet; the branch pipeline comprises a storage tank inlet regulating valve, a hydrogen storage tank, an auxiliary valve group and a storage tank outlet compressor which are sequentially arranged in the hydrogen conveying direction; the hydrogen storage tank and auxiliary valve group comprises a plurality of hydrogen storage tanks which are connected in parallel; the input end and the output end of the storage tank outlet compressor are further connected with a storage tank outlet compressor bypass pipeline, and the storage tank outlet compressor bypass pipeline comprises a bypass adjusting valve and a bypass check valve which are connected in series. According to the scheme, under the condition that the hydrogen production amount fluctuates, it is guaranteed that the flow of downstream hydrogen supply is stable, the pressure of upstream hydrogen is utilized to the maximum extent, and compression power consumption is reduced.

This application relates to the field of hydrogen production, and specifically discloses a hydrogen production drying and regeneration system, which includes a water electrolyzer, a gas-water separator, a cooler, a drying tower, a hydrogen storage cylinder, and a fuel cell; during the water electrolysis process, the water electrolyzer electrolyzes water to form hydrogen and outputs a mixture containing hydrogen to the gas-water separator. The gas-water separator separates the gas in the mixture and inputs the separated gas into the cooler. The cooler cools the gas from the steam-water separator and outputs a gas containing water vapor and hydrogen to the drying tower. The drying tower absorbs the water vapor and outputs hydrogen to the hydrogen storage cylinder; during the power generation process, the hydrogen storage cylinder outputs hydrogen to the drying tower. The drying tower releases the water vapor absorbed during the water electrolysis process. The water vapor and hydrogen output by the drying tower are input into the fuel cell through the cooler, and the fuel cell generates electricity using the water vapor and hydrogen. The purpose of this application is to provide a hydrogen production drying system with a cyclic regeneration function.

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.

A hydrogen production system is disclosed comprises a hydrogen pyrolysis reactor which has a hydrocarbon input, an electrical input and at least one hydrogen output. The hydrogen production system als