57 results about "Oxygen mixture" patented technology

This utility model discloses an oxygen denitrification treatment device for aquaculture water, including a treatment tank. The treatment tank is equipped with a filtration zone, an aerobic biological zone, an anoxic biological zone, and a degassing zone. The filtration zone is filled with quartz sand filter media. The aerobic biological zone contains biological packing material and has a jet aeration ring on its outer wall, which is connected to an ozone-oxygen mixture generator. The anoxic biological zone is filled with porous ceramsite packing material. The degassing zone has a guide plate inside. In this utility model, the aquaculture water can be filtered for suspended particulate matter through the quartz sand filter media. The jet aeration ring can introduce ozone-oxygen mixture gas, which, together with the honeycomb biological packing material, can complete ammonia nitrogen oxidation. The denitrifying bacteria on the surface of the porous ceramsite packing material can convert nitrates into nitrogen gas. Finally, the gas is separated by the guide plate, and the purified water can be discharged from the outlet. Thus, through the above structure, efficient denitrification, oxygenation, and purification of aquaculture water can be achieved, improving water quality treatment efficiency and stability.

The invention discloses application of a cobalt-based catalyst in preparation of ethylene by photocatalytic ethane dehydrogenation with participation of lattice oxygen, the cobalt-based catalyst is Co3O4 with a spinel structure, and due to the coexistence characteristic of Co < 2 + > / Co < 3 + > in the structure and the migration ability of the lattice oxygen, the cobalt-based catalyst can be used as a photocatalyst and an oxygen storage tank; therefore, under the environment-friendly and low-energy-consumption photocatalytic reaction condition, lattice oxygen can be used as a mild oxidizing agent for high-selectivity photocatalytic ethane dehydrogenation to prepare ethylene. Direct participation of oxygen molecules is avoided through utilization of lattice oxygen in the catalyst, generation of COx by-products caused by excessive oxidation can be prevented, ethylene selectivity is improved, the lattice oxygen consumed in the catalyst after the reaction can be regenerated through reaction with air or oxygen, the safety problem that ethane and oxygen are mixed and combustible is solved, and the catalyst is suitable for industrial production. And the feasible photocatalytic oxidation-reduction cycle is realized.

The invention relates to medicine, in particular to gerontology and therapy and can be used for treating sarcopenia in elderly patients.Summary of the invention consists in alternating for 1…2 days the intravenous administration of ozonized 0.9% NaCl solution and major autohemotherapy, namely 500 mL of a 0.9% NaCl solution ozonized with an ozone-oxygen mixture, with an ozone concentration of 5…10 µg / mL, are administered, and major autohemotherapy consists in collecting 300…400 mL of venous blood from the patient, which is ozonized, with an ozone concentration of 15 µg / mL and transfused to the patient, the treatment course includes 8…10 consecutive procedures, then it is extended with minor autohemotherapy, which consists in collecting 5…10 mL of venous blood, which is ozonized, with an ozone concentration of 15 µg / mL and administered intramuscularly every 10th day of alternation and includes 3 consecutive procedures, and the ozonized 0.9% NaCl solution is administered for up to 6…8 weeks.

FIELD: neurology; psychiatry.SUBSTANCE: used as a non-pharmacological therapy for autism spectrum disorders in children. The method includes a set of procedures: interval hypoxic-hyperoxic training (HHT), hyperbaric oxygenation and ozone therapy. HHT consists of alternating inhalations of a hypoxic mixture with an oxygen content of 9 to 16 vol.% and a hyperoxic mixture with an oxygen content of 32 to 40 vol.% for a total duration of 45-50 minutes under the control of cardiovascular system parameters. Hyperbaric oxygenation is performed in a pressure chamber under a pressure of 1.3 atmospheres of 100% oxygen mixture, flow of 10 liters per minute, for 45 minutes using a mask. Ozone therapy is performed by rectal insufflation with an ozone-oxygen mixture with an ozone concentration of 85 μg / ml in a volume of 20–30 ml or by intravenous administration of a physiological solution enriched with ozone with an ozone concentration of 85 μg / ml at a rate of 200 ml per 100 ml of physiological solution. The procedures are carried out daily for 12 days.EFFECT: method is effective and has a positive impact on the patient’s condition.1 cl, 1 dwg, 3 ex

The invention provides a zero-emission power circulation and fuel gas supply system and method for an LNG power-driven ship. The system comprises an internal combustion engine, a nitrogen membrane separation device, a heat regenerator, a water separator, a liquid CO2 storage tank, a liquid oxygen pump, an LNG pump, an LNG storage tank, a liquid oxygen storage tank, a CO2 condenser, a circulation compressor, a gas buffer tank, a CO2 separator, a first-stage water cooler and a second-stage intermediate heat exchanger. According to the internal combustion engine, LNG serves as fuel, an argon and oxygen mixture serves as a circulating working medium to replace air and natural gas to be combusted and push a piston to move, water vapor and gas CO2 in waste gas generated by the internal combustion engine are condensed and separated after being subjected to stepped cooling, and CO2 is liquefied through a circulating compressor and recycled to a liquid CO2 storage tank. According to the invention, argon is used for replacing air to realize waste heat recovery of the internal combustion engine, so that the energy efficiency of the system is improved, and meanwhile, CO2 capture and zero emission of gaseous pollutants are realized.

This invention discloses a process for producing dilute nitric acid using a tail gas oxygenation cycle, belonging to the field of nitric acid preparation. First, the nitrogen-oxygen ratio is controlled to heat the nitrogen-oxygen mixture before it enters an ammonia mixer. The mixture undergoes ammonia oxidation in an oxidation furnace to produce NO. After recovering heat through a waste heat boiler, economizer, and demineralized water preheater, the mixture is cooled by a rapid cooler and then enters a dilute acid separator. The condensed dilute acid from the bottom of the separator is transported to an oxidation absorption tower. At the bottom of the oxidation absorption tower, NO is further oxidized to NO2 in the mixed gas. The remaining NO at the bottom of the oxidation absorption tower... x The mixed gas enters the upper part of the oxidation absorption tower through a baffle plate, where oxidation and absorption occur simultaneously. In the lower part of the absorption section, 55-60% dilute nitric acid is formed and flows to the upper part of the bleaching tower. After treatment in the bleaching tower, the finished acid flows out. The tail gas from the top of the oxidation absorption tower is pressurized by a booster and then enters an oxygen mixer for recycling. This invention solves the problem of tail gas pollution in nitric acid production, with low investment costs, high finished acid concentration, and low energy consumption.

A method and apparatus for diffusing a dopant within a semiconductor device is described. The method includes performing a dynamic surface anneal in which a substrate is placed inside of a process volume with a mixture of an inert gas and a small amount of oxygen gas. The surface of the substrate is then exposed to one or more rapid laser pulses. The rapid laser bursts diffuse dopant from a doped layer into the substrate. The doped layer is formed during a previous process operation. The temperature and number of laser pulses control the amount of diffusion of the dopant into the substrate. Other dynamic surface anneal operations may be optionally performed before or after the oxygenated dynamic surface anneal operation.

The utility model discloses a dry-type anti-backfire device for hydrogen-oxygen mixed gas, which relates to the technical field of anti-backfire devices and comprises a shell, a cover body is in threaded connection with the inside of the shell, a fire stopping sheet is placed in the shell, a first sealing ring matched with the fire stopping sheet for use is placed in the shell, and a second sealing ring matched with the fire stopping sheet for use is placed in the shell. The surface of the shell communicates with a sleeve, and the interior of the sleeve is slidably connected with a piston rod. According to the anti-backfire device, the fire stopping sheet is mounted in the shell, so that after the anti-backfire device is mounted at one end, far away from an external pipeline, of a pipeline in equipment through the air inlet connector and the pipeline in the equipment is subjected to backfire, flames can be effectively blocked after passing through the fire stopping sheet, and the flames are prevented from entering the hydrogen-oxygen generator; the anti-backfire device can effectively protect the interior of equipment, and the whole anti-backfire device is simple in structure and small in size, can be installed in the equipment for the last fire prevention work of the equipment, and improves the practicability.

The present invention relates to a low-loss MnZn ferrite material for 500kHz and a preparation method thereof. The method comprises the following steps: (1) adding MnZn ferrite particles and CaTiO3 powder to ethanol, stirring for 1.5 to 2.5 hours in a water bath at 45 to 55°C, and drying to obtain a mixed powder; (2) pressing the mixed powder into a magnetic ring, keeping the temperature at 1100 to 1200°C in a nitrogen-oxygen mixture for 45 to 75 minutes, and then cooling to 180 to 220°C to obtain a low-loss MnZn ferrite material for 500kHz. In the preparation method provided by the present invention, CaTiO3 is used as an auxiliary component to modify the MnZn ferrite, thereby increasing the magnetic permeability and improving the temperature coefficient of magnetic permeability, reducing eddy current loss and hysteresis loss, and achieving a minimum loss of 128mW·cm at 500kHz and room temperature. ‑3 Compared with the conventional MnZn ferrite material without adding CaTiO3, the loss is reduced by 42.1%, which greatly reduces the use loss of MnZn ferrite material and improves the performance of MnZn ferrite material.

The present invention relates to a face mask (also called full face) for respiratory therapy, in particular for non-invasive mechanical ventilation, with a low value of CO2 rebreathing. The mask according to the invention is of the type comprising a shaped shell (11) configured so as to cover at least the mouth, the nose and the eyes of a patient when the mask is worn, and is characterised in that it comprises, on said shaped shell (11) an inlet fitting (17) for the connection to a pipe through which a ventilation apparatus supplies the mask with a mixture of air and oxygen, and an outlet fitting (15), separate from said inlet fitting (17), for the discharge of air exhaled by the patient. With this arrangement, the mask according to the invention allows drastically reducing the phenomenon of carbon dioxide rebreathing, very harmful for the patient subjected to ventilation.

1. Name of the product in this design: Multipurpose oxygen concentrator. 2. Application of this design: This design is used to produce oxygen or an air-oxygen mixture and to monitor specific gas content, temperature, humidity and other indicators in the environment in which it is used. 3. The key design features of this product are its overall shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention relates to the technical field of medical instruments, and discloses an anesthetic gas anti-inhalation device special for an anesthetist in an operating room, the anesthetic gas anti-inhalation device comprises a hard tube, a baffle is arranged in the hard tube, a sealing strip is fixedly connected to the outside of the baffle, the outside of the sealing strip is arranged in the hard tube, a first liquid inlet hole is formed in the hard tube, and a second liquid inlet hole is formed in the hard tube. The outside of the hard tube is fixedly connected with a branch tube, one end of the hard tube is fixedly connected with a main tube, one end of the main tube is fixedly connected with a mask, a blocking assembly is arranged in the hard tube, the outside of the blocking assembly is arranged outside the baffle, and the blocking assembly comprises a supporting frame. The air bag is extruded through a mixture of anesthetic gas and oxygen, so that the anti-inhalation effect is achieved, the air bag is naturally opened by means of gas pressure, spring pre-tightening force does not need to be overcome, the flow resistance coefficient is far lower than that of a traditional one-way valve, and the gas flow and concentration in a pipeline almost have no deviation from a set value of an anesthesia machine.

The invention relates to the field of water circulation, in particular to a water circulation system applied to long-time hydrogen energy storage, which comprises a pressurizing water catching unit for receiving environmental moisture; an airflow inlet of the deep dehydration unit is communicated with a gas outlet of the pressurized water catching unit; a liquid water inlet of the water purification treatment unit converges with a liquid water outlet of the pressurized water catching unit and a liquid water outlet of the deep dehydration unit; a pure water inlet of the hydrogen production purification unit is communicated with the water purification treatment unit. The device and the method have the beneficial effects that a water-oxygen mixture and a water-hydrogen mixture in the electrolytic hydrogen production process are recovered by capturing environmental moisture, and wet air and hydrogen side exhaust gas generated by hydrogen fuel cell power generation are subjected to cooling separation and deep dehydration treatment, so that liquid water is converged into the raw material water tank and is purified; and long-time cyclic utilization of water resources in the hydrogen energy storage system is achieved, dependence on external water replenishing is remarkably reduced, and the system is suitable for remote unattended areas lacking of water resources.

The invention relates to a method for calibrating a flame monitoring device (10) for a burner device that can be operated at a predetermined power output, in which fuel is supplied to the burner device (12) to generate a flame (14) and in which an ambient air flow (16) is supplied to the burner device (12) to generate a fuel-oxygen mixture, wherein in at least one calibration step (38, 40) a combustion maximum (20) of the flame (14) is exceeded, in which a rich fuel-oxygen mixture is generated at least in the calibration step (38, 40) for a predetermined calibration duration (84) and / or a pulse duration (44). A change in power output during calibration, limited over a predetermined duration (82), is proposed.The invention also relates to a burner device (12) which is at least configured to calibrate the flame monitoring device (10) using the method according to one of claims 1-6.

The application relates to the technical field of gas mixing, and discloses a device and a method for preparing breathing helium-oxygen mixed gas, which comprises a tank body, an inner cylinder, a helium gas inlet element, an oxygen gas inlet element, a drainage channel and a flow control assembly. The helium gas inlet element and the oxygen gas inlet element are used for respectively draining the helium gas and the oxygen gas, so that the helium gas and the oxygen gas are preliminarily mixed in a large range in a primary mixing cavity. Under the control of the intermittent opening and closing of the channel mouth of the drainage channel by the flow control assembly, the preliminarily mixed helium-oxygen mixed gas enters a secondary mixing cavity in batches, and the mixing is further completed. The device realizes the preparation of the helium-oxygen mixed gas, improves the mixing effect, and guarantees the quality of the helium-oxygen mixed gas.

The invention relates to the field of smelting, in particular to a heating burner structure and a combustion control method, and discloses a heating burner structure and a combustion control method in order to solve the problems that most of existing melting furnaces, especially steel melting furnaces, are used for coking furnace melting and metal material melting, are low in heat efficiency and pollute the environment, and the heating burner structure comprises a combustion chamber and a mixing chamber connected with the combustion chamber, the mixing chamber is sequentially provided with a compressed air inlet pipe, an oxyhydrogen mixed air inlet pipe and a liquefied gas inlet pipe in the gas flow direction, the compressed air inlet pipe extends into the bottom of the mixing chamber, and the oxyhydrogen mixed air inlet pipe extends into one end of the mixing chamber and extends into the combustion chamber; compared with the prior art, the novel energy-saving gas stove has the advantages that new energy is fully utilized, the energy storage effect is achieved, combustion heat is high, products are free of pollution, environment-friendly equipment does not need to be additionally arranged in the production process, and the production and manufacturing cost is further reduced.

The present application belongs to the technical field of rubber vulcanization accelerator production, and relates to a novel environment-friendly process for synthesizing accelerator MBTS by oxidizing mixed gas of nitrogen oxide and oxygen. Dry MBT is put into water, wet grinding is performed by a wet grinding pump, and then the MBT is punched into a high-pressure kettle with a wind ring. Mixed gas generated by decomposition of concentrated nitric acid is punched into the high-pressure kettle, and the circulation is performed until the pressure in the high-pressure kettle is no longer reduced and the material reaches the end point. The material in the high-pressure kettle is filtered, left standing, drained, dehydrated and dried to obtain MBTS finished product and reaction liquid. The mixed gas and the reaction liquid are recycled. The present application is a novel environment-friendly process, which does not need to use metal catalyst and does not generate three wastes, has low production cost, and has a relatively broad industrial prospect. The reaction is sufficient, the product has high melting point, high purity and good quality.

The air control breathing machine comprises a main machine and a breathing mask, the main machine is communicated with an air source port and a communication port, the communication port is divided into a suction port, an expiration port, an inspiration port, an atomization port and an exhaust port, the suction port is communicated with a liquid collection bottle, the expiration port is communicated with the breathing mask, and a humidification tank is communicated between the inspiration port and the breathing mask. An atomizing cup is communicated between the atomizing opening and the breathing mask; compressed air or medical oxygen is used as power, a pneumatic control mechanism is used for working, a power source is not needed, and the device can be used under the power-source-free conditions such as emergency treatment, transfer and field. The breathing machine has the functions of intermittent mechanical ventilation IPPV of the breathing machine, synchronous intermittent instruction ventilation SIMV, positive airway pressure ventilation CPAP, positive end expiratory pressure PEEP, airway inspiration negative pressure triggering, airway expiration positive pressure protection, airway atomization humidification, suction, air and oxygen mixing and manual ventilation, can be used in normal pressure departments, can reach 0.3 MPa in a hyperbaric oxygen chamber, can reach 0.3 MPa in a hyperbaric oxygen chamber, can reach 0.3 MPa in a hyperbaric oxygen chamber, can reach 0.3 MPa in a hyperbaric oxygen chamber, can reach 0.3 MPa in a hyperbaric oxygen chamber, can reach 0.3 MPa in a hyperbaric oxygen chamber, can reach 0.3 MPa in a hyperbaric oxygen chamber, can reach 0.3 MPa in a hyperbaric oxygen chamber, can reach 0.3 MPa and long-time stable and reliable use can be realized.

The invention relates to the technical field of blast furnace oxygen enrichment, and particularly discloses a blast furnace oxygen enrichment device and an oxygen enrichment energy-saving technology.The blast furnace oxygen enrichment device comprises industrial oxygen production equipment, a ventilation pipe, a first oxygen concentration sensor and a first air blower, the ventilation pipe is arranged on one side of the industrial oxygen production equipment, and the first oxygen concentration sensor is arranged in the ventilation pipe; the device at least has the following beneficial effects that by arranging the homogenizing mechanism and the first air blower, the first air blower can be used for manufacturing air flow, then the homogenizing mechanism can be driven to adjust the hole diameter of the ventilation through hole, and when the first air blower is larger, the ventilation hole diameter is smaller; therefore, oxygen can be mixed more uniformly; through the arrangement of a first oxygen concentration sensor, a first air blower, a concentration adjusting mechanism and a compensation mechanism, the concentration of mixed oxygen can be detected through the first oxygen concentration sensor, and a second oxygen concentration sensor is installed in air exhausted during combustion.

This invention discloses a diving bell gas system and its gas supply method. The gas system includes a diving bell body, a diving bell umbilical cord, a diver's umbilical cord, and a bell-mounted gas supply unit. The diving bell umbilical cord includes a supply gas pipeline and a breathing gas pipeline, which respectively provide high-pressure ambient gas to the diving bell body and breathing gas to the divers. The bell-mounted gas supply unit includes a helium-oxygen cylinder, a liquid nitrogen Dewar flask, and a liquid oxygen Dewar flask. The helium-oxygen cylinder contains a high-pressure helium-oxygen mixture. The outlet pipelines of the liquid nitrogen Dewar flask and the liquid oxygen Dewar flask are connected in parallel to the breathing gas supply pipeline. The nitrogen and / or oxygen supplied are adjusted according to the diving bell's operating depth. The breathing gas supply pipeline and the breathing gas supply pipeline are connected in parallel to the inlet of a manifold. The inlet of the manifold is also connected to the breathing gas pipeline, and the outlet of the manifold is connected to multiple diver's umbilical cords. This invention can flexibly adjust the helium-nitrogen-oxygen ratio according to the diving bell's current operating depth, effectively adapting to the breathing needs of divers at different water depths.

The utility model discloses a water-gas separator for an electrolytic hydrogen production system, which comprises a separator, a partition plate is arranged in the separator, the partition plate is longitudinally distributed in the separator, the upper space of the separator is divided into an oxygen gas-phase space and a hydrogen gas-phase space by the partition plate, and the oxygen gas-phase space is communicated with the hydrogen gas-phase space. A suspension height is formed between the partition plate and the bottom of the separator, a liquid phase space is formed in the lower portion of the separator, liquid is injected into the separator, the partition plate is inserted below the liquid level, so that the oxygen gas phase space and the hydrogen gas phase space are isolated from each other, the position of the partition plate deviates to one side of the separator, and the oxygen gas phase space is larger than the hydrogen gas phase space. The device has the beneficial effects that a hydrogen water-gas separator and an oxygen water-gas separator are combined into one, so that the number of parts of a hydrogen production system is reduced; the design of the separator is simplified, hydrogen and oxygen are separated through an internal structure, and the hydrogen and oxygen are prevented from being mixed to form explosive gas; liquid water contained in the hydrogen and the oxygen is collected by the same container.

The invention discloses a preparation method of a diode P + protection ring and a diode, and the preparation method of the diode P + protection ring comprises the steps: coating a layer of latex boron source on a wafer, and drying the latex boron source; putting the wafer and the latex boron source into a diffusion furnace tube with mixed gas of nitrogen and oxygen, and heating and decomposing the latex boron source to form a three-layer stacked structure comprising the wafer, a silicon oxide layer and a borosilicate hydrochloric acid layer; and etching the silicon oxide layer, and stripping the borosilicate hydrochloric acid layer to complete the preparation of the diode P + protection ring. Through the above design, the technological process of removing the BSG can be reduced, and the wafer circulation efficiency of a production line is improved.

The application discloses a kind of hydrogen-oxygen mixed gas explosion experiment quick-open explosion-proof tank, it is related to pressure vessel technical field, it solves the problem of complex structure, high manufacturing cost, complex process of tooth meshing type structure.The present application includes clamp, flat cover, flange, cylinder and oval head;The upper end of cylinder is provided with flange, and the lower end is provided with oval head;Cylinder is provided with gas injection and gas extraction port and ignition port;Flat cover is buckled on flange and is fastened together by clamp;Clamp is annular structure, including two articulated half rings;Pressure gauge port and monitoring port are provided on flat cover;High-temperature-resistant buffer pad and several inner lining plates are provided on the inner wall of explosion-proof tank, and inner lining plates are spliced into a whole by cover plate, forming the protective lining structure of steel plate+high-temperature-resistant buffer pad+container inner wall.The present application can carry out explosion experiment in which medium is hydrogen and oxygen mixture in a safe and controllable environment, abandon the traditional tooth meshing type quick-opening structure, simple structure, easy to manufacture.

Methods and reactor systems are provided for extracting metals, such as nickel, cobalt, and iron, from reduced, activated metal compounds (“feed materials”). Feed materials may be derived from mixed hydroxide precipitate. Feed materials and carbon monoxide gas are delivered into an extraction reactor of a reactor system, such as a shell tube heat exchanger. A flow path therein directs the feed material downward and the carbon monoxide gas upward, enabling contact therebetween, forming at least one metal carbonyl gas and a solid residue therein. The flow path further directs the upward flow of metal carbonyl gases, and the downward flow of the residue. Methods and reactor systems may further purge the residue: using nitric oxide to convert any remaining dicobalt octacarbonyl therein to cobalt tricarbonyl nitrosyl gas; using an inert gas to removing any cobalt tricarbonyl nitrosyl therein; and using an inert gas-oxygen mixture, to form a passivated residue.

The invention belongs to the technical field of hydrogen-oxygen combustion mixed emission, and discloses a closed container transient high-temperature pressure hydrogen-oxygen premixed combustion numerical model construction method, which comprises the following steps: establishing a geometric model in simulation software according to the actual structure size of a closed container, and then establishing a transient high-temperature pressure hydrogen-oxygen premixed combustion numerical model on the basis of the constructed physical model. Setting a control equation, a turbulence model, a combustion model, a solver algorithm and initial conditions, finally operating the models to carry out transient calculation, evaluating the mixing uniformity of the hydrogen-oxygen mixed gas by utilizing spatial mixing unevenness SMD, and evaluating the filling accuracy by utilizing a filling quality error. According to the method, by constructing the high-precision numerical model, the mixing and combustion mechanism can be deeply explored, and a theoretical basis and method support are provided for optimization design, DDT inhibition and realization of accurate injection and safe and efficient combustion of oxyhydrogen gas.

The invention relates to the field of semiconductor manufacturing, in particular to a semiconductor device and a production method thereof. The semiconductor substrate comprises a plurality of ion implantation regions; sequentially performing injection processing on the plurality of ion injection regions according to a preset execution sequence; the process of single-time injection treatment comprises the steps of setting a patterned photoresist layer, performing ion injection and removing photoresist; wherein the photoresist removal of the non-last ion implantation region is dry-method photoresist removal carried out by using hydrogen and oxygen mixed gas; the non-last ion implantation region is the ion implantation region which is not located at the last position in the execution sequence. In the photoresist removing process, hydrogen and oxygen are introduced at the same time, hydrogen surface treatment and oxygen surface treatment of the semiconductor substrate are achieved while photoresist removing is completed, and in other words, the problems of chamfering and unfilled corners of the graphical photoresist layer are solved at the same time on the premise that cost and process complexity are not increased.

The invention relates to the technical field of PEM water electrolysis hydrogen production, in particular to an off-grid wind power PEM electrolytic cell hydrogen production process, which comprises the following steps: monitoring the real-time power of a wind power generation unit and acquiring short-time wind power prediction data, and evaluating the fluctuation risk level according to the power change rate and the fluctuation amplitude; when it is judged that the fluctuation is mild or severe, the management and control system generates a control instruction, the load rate or the operation state of the PEM electrolytic cell set is adjusted, and meanwhile the energy storage unit is managed to conduct charging and discharging so as to stabilize power fluctuation; after the PEM electrolytic cell set utilizes stable electric power to electrolyze and produce hydrogen, high-purity hydrogen is obtained through gas-liquid separation, catalytic deoxidation and adsorption drying, and finally stable-pressure storage is achieved through the pressure buffer container. According to the invention, the risk of hydrogen-oxygen mixed explosion in the process of producing hydrogen by using the fluctuating renewable energy is effectively solved, and the system safety and the operation stability are improved.

A compact portable oxyhydrogen generator has a housing, an end cover fastened on the upper end of the housing for discharging gas, and a bottom cover fastened at the lower end of the housing. A battery module for supplying power, an electrolytic cell module for generating hydrogen / oxygen mixture, a water filtration cell for filtering moisture, and a multi-stage filter baffle for further filtering the gas are sequentially arranged in the housing from bottom to top. A flame retardant core is provided between the filter baffle at the top layer and a gas outlet provided in the end cover. The multi-stage filter baffle is provided according to requirements of a gas filtering index. Water is used as a reaction raw material and an inorganic salt can be used as an electrolyte, such that a normal-pressure hydrogen / oxygen mixture may be to directly generated, and can be produced when needed.