650 results about "Hydrogen tank" patented technology

The present application relates to hydrogen production technology field, especially to a kind of methanol hydrogen production method, comprising the following steps: S10: methanol water is heated and vaporized to obtain methanol water vapor;S20: methanol reforming reaction obtains hydrogen mixture gas;S30: after cooling treatment to hydrogen mixture gas, through water washing tower absorption unreacted methanol water, then, adjust the relative humidity and temperature of hydrogen mixture gas;S40: hydrogen mixture gas is input into carbon dioxide absorption tower to remove carbon dioxide;S50: after removing carbon dioxide, product hydrogen is obtained and input hydrogen tank storage to supply user end.The above-mentioned methanol hydrogen production method, by methanol water vapor reforming hydrogen treatment, obtains hydrogen mixture gas.Again, hydrogen mixture gas is purified to obtain product hydrogen with very low carbon monoxide content, with raw material easy to transport, the hydrogen purity of output is high, equipment construction cost is low, and energy consumption is low and the like advantages, reach the purpose of expanding hydrogen application range.

System and associated methods relate to detecting and responding to hydrogen leakage in an aircraft. The system includes a hydrogen tank and a fuel pipeline surrounded by an enclosed chamber. The system further includes one or more vacuum pumps fluidly coupled to the enclosed chamber to create the control volume vacuum. The system further includes vacuum sensors mounted within the control volume vacuum, configured to sense a vacuum pressure value. The system further includes hydrogen detectors fluidly connected downstream of the one or more vacuum pumps, configured to sense the hydrogen concentration of the exhaust from the one or more vacuum pumps. The system further includes a controller and an emergency vacuum. The controller is configured to evaluate whether an emergency hydrogen leak condition exists based upon the vacuum pressure value and the hydrogen concentration. The controller can then open a valve to operate emergency vacuum if necessary.

Systems and methods for integrating hydrogen fueled power generation systems with a refuse collection vehicle include a refuse collection vehicle including a chassis; a refuse collecting body supported by the chassis; and a power generating assembly supported by the chassis. The power generating assembly includes at least one hydrogen tank; a fuel cell fluidly coupled to the at least one hydrogen tank; and at least one battery electrically connected to the fuel cell. Alternatively, the power generating assembly includes a hydrogen engine coupled to the at least one hydrogen tank; and a generator coupled to the hydrogen engine and the at least one battery.

A hydrogen aircraft includes: an airframe including a fuselage and a wing; at least one propulsion system fixed to the airframe; a pressurized chamber disposed inside the fuselage; a pressure bulkhead that is disposed at a rear part of the pressurized chamber and has strength to withstand pressurization of the pressurized chamber; a hydrogen tank that is disposed in an accommodation section and stores liquid hydrogen, the accommodation section being installed behind the pressure bulkhead, outside the pressurized chamber, and inside the fuselage; and a supply line that supplies the liquid hydrogen stored in the hydrogen tank to the propulsion system.

The invention discloses a hydrogen energy unmanned aerial vehicle nest outdoor inspection energy complementing platform, and mainly relates to unmanned aerial vehicle nest energy complementing. Comprising a nest body, a lifting platform is installed on the upper surface of the nest body, a closing plate is installed in the nest body, adjusting rods are installed on the two sides of the two ends of the nest body, a shell is installed at the ends, away from the nest body, of the adjusting rods, and a hydrogen tank is arranged in the nest body; an unmanned aerial vehicle body is placed on the upper surface of the lifting platform, supplementing structures are arranged on the two sides of the unmanned aerial vehicle body, each supplementing structure comprises two connecting pipes, and the two connecting pipes are both fixedly connected with the unmanned aerial vehicle body. The device has the beneficial effects that hydrogen energy can be automatically supplemented to the unmanned aerial vehicle conveniently and can be recycled, the device can be prevented from being used on a nest in different environments, and the energy supplementing efficiency of the unmanned aerial vehicle is greatly improved.

The invention relates to the technical field of hydrogen exchange robots, and discloses a hydrogen fuel heavy truck movable hydrogen exchange robot which comprises a movable truss, movable tables are fixed to the two ends of the movable truss, first movable wheels are installed below the movable tables, a sliding rail is arranged below the movable truss, the first movable wheels are located on the sliding rail, and the first movable wheels are located on the sliding rail. The movable truss is provided with a [-shaped seat, the two sides of the [-shaped seat are each provided with a second movable wheel, the movable truss is provided with two strip-shaped grooves, and the second movable wheels are located in the strip-shaped grooves; in the hoisting and replacing process of the hydrogen tank module, rain and snow attached to the top of the hydrogen tank module can be blown to the two sides through the first blowing nozzles fixed to the mounting plate in rainy and snowy weather, so that the replaced hydrogen tank module can reduce the problems of short circuit and damage caused by contact between the rain and snow and electronic equipment in the hydrogen charging equipment in the charging process of the hydrogen charging equipment.

The utility model discloses a flow regulating device for hydrogen doping of natural gas, which belongs to the technical field of hydrogen doping of natural gas and comprises a protective box, a support table is placed at one end in the protective box, a hydrogen tank and a natural gas tank are placed on the support table, and the hydrogen tank and the natural gas tank are respectively communicated with a hydrogen pipe and a natural gas pipe. Through cooperation of a first electromagnetic valve and a second electromagnetic valve, a manual switch can be replaced to control circulation of hydrogen and natural gas, a detection assembly is arranged in mixed gas, and starting of the first electromagnetic valve, the second electromagnetic valve and a gas detector can be controlled through a controller; the mixing proportion concentration of hydrogen and natural gas is accurately controlled, the natural gas hydrogen doping flow adjusting efficiency is improved, the ventilation effect can be provided for the interior of the protection box through the arranged ventilation grooves, and the air flowing speed in the protection box can be increased through the fan designed at the top of the protection box.

The present application provides a photovoltaic storage and hydrogen sharing system and photovoltaic storage and sharing device, in which photovoltaic panels are installed on or next to the atmospheric pressure hydrogen tank, and the photovoltaic panels and the atmospheric pressure hydrogen tank constitute a photovoltaic storage and sharing device with complementary functions and integration; when there is sufficient sunlight, the photovoltaic panels supply power to the hydrogen generator to produce hydrogen, and the hydrogen is stored in the atmospheric pressure hydrogen tank; when there is no sunlight, the hydrogen fuel cell receives hydrogen to generate electricity. The present application reduces the energy storage cost of the entire life cycle, opens up a new low-cost technical path for photovoltaic power generation to replace thermal power, and provides a possibility for hydrogen to replace biogas.

A hydrogen tank includes a tank body, a boss connected to at least one end of the tank body and having a skirt extending radially with respect to an axial direction of the tank body, and a nozzle installed inside the tank body via the boss and configured to spray hydrogen gas at a predetermined angle with respect to the axial direction of the tank body. The nozzle includes a connector coupled to the boss, an extension portion extending from the connector parallel to the axial direction of the tank body, an inclined portion connected to an end portion of the extension portion and inclined with respect to the axial direction of the tank body, and an injection member provided at an end portion of the inclined portion.

A work vehicle includes a chassis having frame rails, a cargo bed disposed along the chassis, an electric motor disposed on the chassis, one or more fuel cell enclosures disposed under the cargo bed, and a hydrogen tank disposed above the one or more fuel cell enclosures. The one or more fuel cell enclosures include a plurality of fuel cells configured to be inserted into the one or more fuel cell enclosures, and one or more leak-free valves configured to couple the plurality of fuel cells with the work vehicle.

To provide an electrically-driven type work machine such that a hydrogen gas hardly stagnates in a vehicle body even when a fuel battery is mounted.SOLUTION: An electrically-driven type work machine comprises: a fuel battery 21; an electric motor driven with electric power supplied from the fuel battery 21; a hydrogen tank 50 reserving hydrogen to be supplied to the fuel battery 21; and a hydrogen tank-side exterior cover 90A covering the fuel battery 21, electric motor, and hydrogen tank 50, wherein the fuel battery 21 and electric motor are partitioned off from the hydrogen tank 50 by a partition member 95, and the hydrogen tank-side exterior cover 90A is provided with an opening above the hydrogen tank 50.SELECTED DRAWING: Figure 5B

System and associated methods relate to detecting and responding to hydrogen leakage in an aircraft. The system includes a hydrogen tank and a fuel pipeline surrounded by an enclosed chamber. The system further includes one or more vacuum pumps fluidly coupled to the enclosed chamber to create the control volume vacuum. The system further includes vacuum sensors mounted within the control volume vacuum, configured to sense a vacuum pressure value. The system further includes hydrogen detectors fluidly connected downstream of the one or more vacuum pumps, configured to sense the hydrogen concentration of the exhaust from the one or more vacuum pumps. The system further includes a controller and an emergency vacuum. The controller is configured to evaluate whether an emergency hydrogen leak condition exists based upon the vacuum pressure value and the hydrogen concentration. The controller can then open a valve to operate emergency vacuum if necessary.

A hybrid plug-in battery, rooftop “magazine” type swappable hydrogen tank package, and outboard “magazine” type swappable battery bank Electric Vehicle comprises: 1) a plug-in full electric vehicle; 2) a rooftop “magazine” type swappable hydrogen tank package; 3) a outboard “magazine” type swappable battery bank; wherein the rooftop “magazine” type swappable hydrogen tank package is electrically connected to the battery bank of the plug-in full electric vehicle the second power source, and the outboard “magazine” type swappable battery bank is electrically connected to the battery bank of the plug-in full electric vehicle the third power source, so that the vehicle can be charged by using any existing charging stations through the plug-in full electric vehicle, get energy replenished by exchanging the hydrogen tanks through the rooftop “magazine” type swappable hydrogen tank package, and get energy replenished by exchanging the battery modules through the outboard “magazine” type swappable battery bank.

This invention provides a fuel cell system that can estimate the nitrogen concentration of gases emitted from the fuel cell at low cost. [Solution] The fuel cell system 1 comprises a fuel cell 2 that generates electricity through an electrochemical reaction between hydrogen gas and oxygen gas and discharges hydrogen off gas containing unreacted hydrogen gas together with nitrogen gas and moisture; a hydrogen supply channel 40 that supplies hydrogen gas from a hydrogen tank 41 to the fuel cell 2; a recirculation channel 50 that recirculates the hydrogen off gas back into the hydrogen supply channel 40; a gas-liquid separator 51 that separates moisture from the hydrogen off gas to obtain dehumidified hydrogen gas and stores the separated moisture; an exhaust valve 54 that exhausts the dehumidified hydrogen gas from the recirculation channel 50; a pressure sensor 52 that detects the pressure in the recirculation channel 50; and a control device 6 that controls the exhaust valve 54. The control device 6 estimates the concentration of nitrogen gas contained in the dehumidified hydrogen gas based on the value detected by the pressure sensor 52, and controls the exhaust valve 54 to an open state when the concentration of nitrogen gas exceeds a predetermined value.

The invention relates to the technical field of vehicles, and particularly discloses a hydrogen fuel cell vehicle braking energy recovery method and system and a vehicle. A10, the state of the vehicle is monitored in real time; a20, whether the vehicle is braked or not is judged, if yes, A30 is executed, and if not, A10 is returned; a30, the brake regeneration module is started and charges the power battery; and A40, according to the electric quantity of the power battery, the brake regeneration module is adjusted to supply power to the power battery or the hydrogen production module, and the hydrogen produced by the hydrogen production module is filled into the hydrogen tank. Whether a vehicle is in a braking state or not is judged by detecting the state of the vehicle, if the vehicle is in the braking state, a braking regeneration module is started to convert braking energy of the vehicle into electric energy, the electric energy is provided for a battery, meanwhile, the electric quantity condition of the vehicle is monitored, excessive electric energy is provided for a hydrogen production module while the power battery is prevented from being overcharged, and the hydrogen production efficiency is improved. And the hydrogen generator is used for enabling the generated electric energy to generate water electrolysis reaction so as to generate hydrogen for the fuel cell to react to generate electric energy.

A H2 defueling system for automating defueling of a hydrogen tank is disclosed. The H2 defueling system comprises: a hydrogen storage tank containing hydrogen; a plurality of electronic valves configured for regulating hydrogen discharge of hydrogen from the hydrogen tank; at least one pressure sensor and at least one temperature sensor; a hydraulic circuit interconnecting the hydrogen tank, the plurality of electronic valves, the at least one pressure sensor and the at least one temperature sensor; and a control unit configured to: receive input from the at least one pressure sensor and the at least one temperature sensor; automatically adjust the flow rate of gaseous hydrogen from the storage tanks based on the input from the sensors to maintain the gaseous hydrogen within pressure limits; modulate operations of the plurality of electronic valves to control hydrogen discharge to control the flow of hydrogen from the hydrogen tank.

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 invention provides a light storage and co-hydrogen energy access method, which is characterized in that a photovoltaic cell panel is mounted on or beside a normal-pressure hydrogen tank, and the photovoltaic cell panel and the normal-pressure hydrogen tank form a light storage and co-hydrogen device with complementary functions and integrated functions; when sunlight is sufficient, the photovoltaic cell panel supplies power to the hydrogen production machine to produce hydrogen, and the hydrogen is stored in the normal-pressure hydrogen tank; and the hydrogen fuel cell receives hydrogen to generate power without sunlight. The energy storage cost per kilowatt hour in the whole life cycle is reduced, a new low-cost technical path is developed for replacing thermal power by photovoltaic power generation, and the possibility is provided for replacing biogas by hydrogen.

A hydrogen supply system includes a detachable hydrogen tank, a hydrogen consumption apparatus that consumes hydrogen in the hydrogen tank, and a control device. The hydrogen consumption apparatus includes a detachment and attachment mechanism that detaches the hydrogen tank from the hydrogen consumption apparatus and attaches the hydrogen tank to the hydrogen consumption apparatus. The detachment and attachment mechanism includes a motor that controls detachment and attachment of the hydrogen tank from and to the hydrogen consumption apparatus. When a torque value of the motor exceeds a threshold during the control of the detachment and attachment of the hydrogen tank from and to the hydrogen consumption apparatus, the control device returns the hydrogen tank to a position where a moving process in which the threshold being exceeded is detected is started.

The invention discloses a method for controlling the choking state of an ejector in a hydrogen supply system of a hydrogen fuel cell, which comprises the following steps of: constructing an SIMULINK model containing a hydrogen tank, a pressure reducing valve, a proportional valve, the ejector, a hydrogen supply pipeline, an anode stack and a circulating pump, exciting the proportional valve by a PRBS signal, acquiring the output of a back pressure ratio (pion = Pb / P), acquiring a dynamic model of the ejector through system identification, and calculating the choking state of the ejector in the hydrogen supply system of the hydrogen fuel cell. A fuzzy PID algorithm is adopted to control the opening degree of the proportional valve; the method specifically comprises the steps that in a hydrogen supply system, a model is updated by replacing proportional valve parameters with PRBS signals; the pi deviation and the change rate of the pi deviation serve as input, the opening degree of a proportional valve is adjusted through fuzzification, rule reasoning and defuzzification, and the ejector is kept in a choked state; the method is suitable for choking state control of the fuel cell hydrogen supply system, through cooperation of dynamic modeling and a control algorithm, in the typical power range of the fuel cell, the system stability and the hydrogen recovery efficiency are remarkably improved through the control method, and an efficient solution is provided for variable working condition operation of the fuel cell.

The invention discloses an exhaust system emission reduction device and emission reduction method. The system comprises a vehicle-mounted computer, an exhaust aftertreatment system connected with an internal combustion engine, and a heat collection power generation module and a water electrolysis system which are connected with the exhaust aftertreatment system. The water electrolysis system comprises a storage battery connected with the heat collection power generation module, a power generator and a water electrolysis device which are connected with the storage battery, and a main oxygen tank, a standby oxygen tank, a main hydrogen tank and a standby hydrogen tank which are respectively connected with the water electrolysis device and the vehicle-mounted computer; the exhaust aftertreatment system comprises a diesel engine oxidation catalyst and a diesel particle filter which are sequentially arranged in the exhaust gas flow direction, the reaction efficiency is improved through an emission reduction method, and the tail gas treatment efficiency is improved.

The invention relates to a shut-off valve (1) for hydrogen tank systems, comprising a housing (2) in which an annular solenoid (3) is accommodated for acting on a magnetic armature (4) of a control valve (5) in the form of a flat armature and a magnetic armature (6) of a main valve (7) in the form of a plunger-type armature, wherein the two magnetic armatures (4, 6) are arranged coaxially and together they border a control chamber (8) formed within the solenoid (3), which is pneumatically connected to a control valve chamber (9) on one side and to a main valve chamber (10) on the other side, and wherein at least one spring (11, 12) is accommodated in the control chamber (8) for restoring the two magnetic armatures (4, 6).The invention also relates to a hydrogen tank system comprising a shut-off valve (1) according to the invention.

The present invention relates to the technical field of natural gas hydrogen doping, and discloses a natural gas hydrogen doping-based hydrogenation apparatus, which comprises: a hydrogen tank for storing hydrogen, one end of a connection pipe of the hydrogen tank is provided with a pressure reducing valve through a flange, and one end of the pressure reducing valve far away from the connection pipe is provided with a conveying pipe through a flange; the turbulent flow mechanism is used for optimizing the flow characteristic in the hydrogen conveying process; the hydrogen accelerating mechanism is used for accelerating the hydrogen flow rate; the nitrogen mechanism is used for providing a nitrogen barrier for the conveying pipe; the pressure relief mechanism is used for automatically releasing nitrogen when the nitrogen mechanism is too high; the hydrogen accelerating mechanism comprises a fixing ring, and the fixing ring is fixedly connected to the end, away from the connecting pipe, of the interior of the conveying pipe. The flow characteristic of hydrogen is optimized through the turbulent flow mechanism, the flow speed is increased through the hydrogen acceleration mechanism, the nitrogen mechanism forms an isolation barrier, automatic pressure relief is achieved through the pressure relief mechanism, and the hydrogen mixing efficiency and the conveying safety are overall improved.

To provide a hydrogen filling control method capable of appropriately selecting a combination of a provision tank and a filling tank of hydrogen when performing filling of hydrogen between vehicles.SOLUTION: A hydrogen filling control method includes: a first vehicle hydrogen information acquisition process of acquiring first hydrogen tank information including pressure in a first hydrogen tank provided in a first vehicle and second hydrogen tank information including pressure in a second hydrogen tank provided in the first vehicle and having internal pressure different from that of the first hydrogen tank; a second vehicle hydrogen information acquisition process of acquiring third hydrogen tank information including pressure in a third hydrogen tank provided in a second vehicle different from the first vehicle; and a filling tank pair determination process of determining a combination of hydrogen tanks between which filling of hydrogen is performed out of the hydrogen tanks provided in the first vehicle and the second vehicle on the basis of the hydrogen tank information acquired in the first vehicle hydrogen information acquisition process and the second vehicle hydrogen information acquisition process.SELECTED DRAWING: Figure 1

This patent discloses a powerplant for an aerial vehicle comprised of Perovskite-Silicon tandem photovoltaic solar cells covering the wings and fuselage, a lithium-sulfur battery, a high-pressure unitized regenerative proton exchange membrane (“PEM”) device, and hydrogen tanks. The PEM device has a fuel-cell mode and an electrolysis mode. During level flight, the PEM device operates in fuel-cell mode, converting hydrogen into electricity. The electricity is used to run a plurality of pairs of permanent magnet synchronous motors, coupled to propellers, and mounted in a coaxial rotor configuration. During level flight, the array of solar cells re-charges the Li—S battery pack. During takeoff and landing, the Li—S battery pack supplements the electricity generated by the PEM device in fuel-cell mode. On the ground, the solar cells provides electricity to the PEM device, which operates in electrolysis mode, converting water into hydrogen gas, which is then stored in the hydrogen tanks.

A work vehicle includes a vehicle body, a driver's seat, an electric motor, and a fuel cell module each installed on the vehicle body, a cabin around the driver's seat, a hydrogen pipe and a hydrogen tank through and from which hydrogen is supplied to the fuel cell module, and a tank case above the cabin and accommodating the hydrogen tank. The tank case includes a lower plate covering a lower surface of the hydrogen tank, side plates covering side surfaces of the hydrogen tank, and an upper plate covering an upper surface of the hydrogen tank, and includes a first vent that is open in the lower plate.

The present invention is a self-charging battery-powered electric vehicle (EV) that integrates a dual traction battery system and a hydrogen fuel cell to enhance driving range and efficiency. The EV features a first traction battery pack and a second traction battery pack, wherein a power controller automatically switches between battery packs and enables the hydrogen fuel cell to recharge the inactive pack while driving. A hydrogen fuel cell system, coupled with swappable (i.e., selectively removable) and fixed hydrogen tanks, generates electricity for battery charging and direct propulsion. Additionally, a hydrogen tank swapping station provides secure and automated hydrogen refueling. The system optimizes energy distribution based on driving patterns, terrain, and climate conditions.

The present invention provides an inner tank support system for a spherical liquefied hydrogen tank, which exerts a stable supporting force against horizontal, vertical, and torsional loads of an inner tank from the side of an outer tank, suppresses the generation of concentrated load of a support connection portion, and minimizes thermal loss from an inner tank support means. According to a preferred embodiment of the present invention, the inner tank support system for a spherical liquefied hydrogen tank, for supporting an inner tank in an outer tank supported on the ground via support pillars, comprises: inner tank upper and lower pin brackets which are located respectively on upper and lower portions on the basis of the equator of the spherical liquefied hydrogen tank and are circularly arranged with certain intervals on the outer surface of the inner tank in a circumferential direction; outer tank upper and lower pin brackets which are located on upper and lower portions on the basis of the equator line of the spherical liquefied hydrogen tank and are circularly arranged and fused on the inner surface of the outer tank with the same arrangement interval as the inner tank upper and lower pin brackets in the circumferential direction; vertical tie bars which each have one end coupled to the outer tank upper pin bracket via a pin and the other end coupled to the inner tank lower pin bracket via a pin and are arranged in the longitudinal direction and circularly arranged in the circumferential direction; upper horizontal sway bars which each have one end coupled to the inner tank upper pin bracket via a pin and the other end coupled to the outer tank upper pin bracket via a pin and are connected in the shape of a polygonal closed curve; and lower horizontal sway bars which each have one end coupled to the inner tank lower pin bracket via a pin and the other end coupled to the outer tank lower pin bracket via a pin and are connected in the shape of a polygonal closed curve.

A vehicle is equipped with a hydrogen tank that stores hydrogen, a fuel cell that generates electricity from the hydrogen in the hydrogen tank, a filling device 4 that fills a fuel cell vehicle with the hydrogen stored in the hydrogen tank, and a charger with which electricity generated by the fuel cell is charged to an electric vehicle. Using the vehicle, hydrogen and electricity are delivered to the home of a user.

The application discloses an electric flame stove capable of inhibiting ozone, which comprises a stove head, a stove box, and an ejector. The stove head comprises an upper casing, a plurality of negative fire spraying tubes arranged on the upper casing, a lower casing, a plurality of insulating cyclones arranged on the lower casing, and a positive needle arranged between the single insulating cyclones. The stove box comprises a panel and a base. The base is provided with a driving circuit, a voltage transformation circuit, and a rectifier circuit electrically connected with the positive needle. The ejector is arranged on the stove head. The ejector is connected with an electric valve and a hydrogen tank through a pipeline. The ejector is further provided with a plurality of spraying holes for spraying hydrogen. The ozone is effectively eliminated or inhibited by adding hydrogen to mix and burn with the ozone.