653 results about "Oxygen storage" patented technology

The invention relates to the technical field of engines, and provides a three-way catalyst fault diagnosis method and device and electronic equipment. Comprising the steps of entering a fault diagnosis mode under the condition that a fault diagnosis condition is met; the air-fuel ratio is adjusted, and signal changes of the front oxygen sensor and the rear oxygen sensor are monitored; based on the signal change, acquiring an oxygen storage amount measurement parameter; calculating a three-way catalyst performance monitoring index based on the oxygen storage amount measurement parameter; and if the three-way catalyst performance monitoring index is not lower than the preset diagnosis threshold value, it is determined that the three-way catalyst is normal. Fault diagnosis can be carried out on the three-way catalytic converter, so that whether the purification performance of the three-way catalytic converter meets the requirement or not can be judged, and emission performance control of an engine is facilitated.

The invention provides an oxygen production control method of an oxygen generator and an oxygen generator system, and relates to the technical field of oxygen generators, and the oxygen production control method comprises the following steps: obtaining the maximum pressure value of an oxygen storage barrel after stable oxygen output of the oxygen generator under the state of a preset compressor rotating speed and a preset molecular sieve maximum pressure value; judging whether the maximum pressure value of the oxygen storage barrel within a preset duration is continuously smaller than a preset pressure threshold value of the oxygen storage barrel or not; if the maximum pressure value of the oxygen storage barrel within a preset time length is continuously smaller than a preset pressure threshold value of the oxygen storage barrel, obtaining a first inflation time length when the pressure value of the molecular sieve reaches the preset maximum pressure value of the molecular sieve; whether the first inflation duration exceeds a preset inflation duration threshold value or not is judged; and if the first inflation duration does not exceed the preset inflation duration threshold, compensating operation parameters of the oxygen generator. Whether the molecular sieve needs to be subjected to aging compensation or not is automatically judged, meanwhile, the judgment accuracy of aging compensation of the molecular sieve is improved, the use cost of the oxygenerator is reduced, and the practicability of the oxygenerator is improved.

The invention discloses a hydrogen supply system suitable for a fuel cell, and relates to the technical field of hydrogen supply, the hydrogen supply system comprises a gas supply device and a controller, the gas supply device comprises a hydrogen production assembly, an oxygen storage tank, a hydrogen storage tank, a distribution assembly and a plurality of groups of power generation devices, the hydrogen production assembly is connected with the oxygen storage tank and the hydrogen storage tank, and the distribution assembly is connected with the controller. The oxygen storage tank and the hydrogen storage tank are connected with the distribution assembly, and the distribution assembly is connected with the multiple sets of power generation equipment, so that when the device is used, hydrogen can be prepared through the hydrogen production assembly so as to be supplied to the power generation equipment, and the power generation equipment can stably generate power; according to the oxygen and hydrogen generation device, the acid medium in the hydrogen production assembly can be automatically supplemented according to the content of the generated oxygen and hydrogen, so that electrolysis can be better carried out during electrolytic hydrogen production, power generation equipment can generate sufficient electric energy, and the whole power station can generate stable electric energy all the time.

The invention discloses a vehicle-mounted oxygen generation system, a vehicle system, a vehicle-mounted oxygen generation control system and a control method.The vehicle-mounted oxygen generation system comprises a shell, a molecular sieve and an oxygen storage tank, and the molecular sieve and the oxygen storage tank are arranged in the shell; the air inlet is configured to be connected with an air suspension air tank in a vehicle air suspension system outside the shell so as to provide air for the molecular sieve; one end of the air pipe is communicated with an outlet of the oxygen storage tank, the other end of the air pipe is configured to be communicated with a vehicle cab outside the shell, and a controllable electronic valve is arranged on the outlet of the oxygen storage tank or the air pipe. New configuration optimization is made based on an air compressor and an air storage tank of an existing vehicle air suspension system, the oxygen generation function is achieved on the basis that the original air suspension function of the system is protected, and the adverse effects on the available space and the loading capacity of a vehicle are greatly reduced.

The invention discloses a high-pressure combustion combined heat and power generation energy storage system and method for hydrogen and oxygen production through electrolysis, and relates to the field of hydrogen energy storage. After the electrolytic cell produces high-pressure hydrogen and oxygen, the high-pressure hydrogen and oxygen are stored in the hydrogen / oxygen storage tank, the system can operate in a hydrogen / oxygen mode, and in the oxygen mode operation, the hydrogen and oxygen steam mixed gas from the oxygen storage tank and the hydrogen / oxygen evaporation compressor are combusted in the high-pressure combustion chamber to generate superheated steam, and then the superheated steam enters the expansion turbine to do work; due to excessive oxygen, dead steam after acting is separated into two working media through a gas-liquid separator, that is, gas enters a cooler to be cooled and then returns to a combustion chamber through a hydrogen / oxygen evaporation compressor, drainage water generated after liquid enters a heat supply heat exchanger is pressurized through a water pump and then enters a high-temperature combustion chamber, and therefore clean utilization of hydrogen energy and cyclic regeneration of the working media are achieved. The system can realize high power generation efficiency and excellent environmental protection performance, and is suitable for regions requiring stable consumption of fluctuating renewable energy sources, power and heat supply and the like.

The invention discloses an intelligent altitude-adaptive pressure swing adsorption oxygen generator and a control method thereof.The intelligent altitude-adaptive pressure swing adsorption oxygen generator comprises a shell, an oil-free compressor is arranged in the shell and connected with an electromagnetic switching valve through a pipeline, and the electromagnetic switching valve is connected with a double-molecular-sieve adsorption tower through a pipeline; the double-molecular sieve adsorption tower is connected with the oxygen storage tank through a pipeline, an output port is formed in one side of the oxygen storage tank, a main control board is arranged in the shell, a control panel is arranged on the outer surface of the shell, a power switch is arranged on the control panel, and a pressure sensor, an altitude sensor and a CPU processing center are arranged on the main control board; according to the altitude sensor technology, the altitude of the working environment of the oxygenerator is intelligently identified, and the parameter configuration of the oxygenerator is automatically adjusted to correspondingly match the current altitude, so that the oxygenerator can generate oxygen with the concentration meeting the standard requirement at each altitude.

The invention relates to the technical field of Internet of Things sensing, in particular to a medical oxygen storage and distribution method and system based on the Internet of Things. The method comprises the following steps: acquiring use process data of the recycled medical oxygen storage container; analyzing a pressure decline curve and a use frequency mode of each container when oxygen is taken by using the use process data, and establishing use behavior characteristics; comparing the stability differences of the use behavior characteristics of different containers to obtain container stability grading data; counting accumulated use times and load intensity change of each container according to the container stability grading data; calculating a fatigue cumulative value of each container based on the cumulative number of uses and the load intensity change; and combining the fatigue accumulated value with the container stability grading data to evaluate the container reliability, and generating a container reliability sorting table. According to the invention, by analyzing the use behavior characteristics and the fatigue accumulation value of the container, the container with potential risk can be identified.

A dimethyl sulfoxide synthesis system and a synthesis method, the system comprising: a fixed bed reactor (2) used to synthesize dimethyl sulfide, and an oxidation reactor (4) used to synthesize dimethyl sulfoxide. An external intensification unit (9) is disposed outside the oxidation reactor (4), the external intensification unit (9) comprising a first intensification reactor (901) and a second intensification reactor (902), the first intensification reactor (901) being disposed above the second intensification reactor (902), the first intensification reactor (901) being connected to a discharge port at a bottom end of the fixed bed reactor (2), the second intensification reactor (902) being connected to a nitrogen dioxide or oxygen storage tank (13), a connecting pipe (903) being disposed between the first intensification reactor (901) and the second intensification reactor (902), and a static mixer (904) being disposed in the connecting pipe (903).

The utility model relates to the technical field of ventilation treatment, and discloses an oxygen mixing treatment system which comprises an oxygen generator (1), an oxygen storage tank (2) and ventilation treatment equipment (3), and the oxygen storage tank (2) and the ventilation treatment equipment (3) are respectively connected with an oxygen outlet of the oxygen generator (1), so that an air-oxygen mixture can be conveyed to a patient (4) through the ventilation treatment equipment (3). And when the patient (4) exhales, oxygen generated by the oxygen generator (1) is stored in the oxygen storage tank (2). According to the oxygen mixing treatment system, the oxygen storage tank is connected to the oxygen outlet of the oxygen generator, when a patient inhales, a warm and humid air and oxygen mixture can be conveyed through the ventilation treatment equipment, when the patient exhales, oxygen generated by the oxygen generator is stored in the oxygen storage tank, and the stored oxygen can be conveyed to the patient together with the patient when the patient inhales; the oxygen flow supplied to a patient is increased, and the treatment effect is improved.

The present application relates to a low-temperature high-performance oxygen storage material, a preparation method, and an automobile tail gas purification catalyst. The preparation method comprises: preparing a solution A1, wherein the solution A1 contains cerium, zirconium, and a metal modified doping element; preparing a solution A2, wherein the solution A2 contains ammonium carbonate and ammonia water; using a silane coupling agent to modify nanoparticles to obtain a slurry A3; jointly titrating and precipitating the solution A1, the solution A2, and the slurry A3, and when titration is completed, adding concentrated ammonia water and stirring to obtain a slurry B; sequentially performing low-temperature aging treatment and high-temperature aging treatment on the slurry B to obtain a slurry C; heating the slurry C to a set temperature, then adding concentrated ammonia water and a surfactant into the slurry C, and performing a stirring reaction to obtain a slurry D; and performing suction filtration and washing on the slurry D, and drying and roasting a filter cake obtained by suction filtration and washing, to obtain a low-temperature high-performance oxygen storage material. The present application can solve the problems in the related art of relatively poor low-temperature reaction activity of an oxygen storage material, and the incapability of dealing with low-temperature ignition when a hybrid vehicle type frequently starts and stops.

The utility model discloses a precise control device for oxygen pulse quantity of an oxygen generator, which comprises a controller, sensors, an air compressor, a molecular sieve adsorption tower and an oxygen storage tank, the air compressor, the molecular sieve adsorption tower and the oxygen storage tank are sequentially connected, a control valve is mounted at an oxygen outlet of the oxygen storage tank and connected with a nasal oxygen tube, and the sensors comprise a pressure sensor and a breathing pressure sensor. The pressure sensor is connected with the oxygen storage tank and used for detecting the pressure value in the oxygen storage tank, the breathing pressure sensor is connected with the nasal oxygen tube and used for detecting the breathing condition of a user, and the controller is electrically connected with the air compressor, the control valve, the pressure sensor and the breathing pressure sensor and controls the rotating speed of the air compressor to adjust the single-time pulse oxygen supply amount of the oxygen generator. According to the device, the pressure value in the oxygen storage tank is kept stable in a feedback mode, so that the pulse oxygen supply precision can still be ensured when the oxygen generator is used for a long time, and the oxygen uptake requirement of a user is better met.

The utility model discloses an underwater water storage and oxygen storage device, which comprises a high-pressure gas cylinder and a pair of end socket water tanks buckled at two ends of the high-pressure gas cylinder, and is characterized in that the underwater water storage and oxygen storage device also comprises a mounting capacity expansion box, the mounting capacity expansion box is matched with a guide assembly and a connecting assembly, and the guide assembly is matched with the connecting assembly. The guiding assembly comprises a limiting block arranged on the end socket water tank and a positioning clamping groove formed in the mounting capacity expansion box, the positioning clamping groove is matched with the limiting block, and the connecting assembly comprises a water path connector communicated with the end socket water tank, a gas path connector communicated with the high-pressure gas cylinder and a communication quick connector communicated with the mounting capacity expansion box. When the positioning clamping groove and the limiting block are arranged in a matched mode, the communicating quick connector can be communicated with the water path connector or the air path connector.

The invention discloses a handheld oxygen generator in the field of oxygen generation equipment, which comprises an air pump assembly, an air inlet assembly, an air outlet assembly, molecular sieve tanks and an oxygen storage tank, a pressure preparation gas tank is arranged on a gas path structure between the two molecular sieve tanks and the oxygen storage tank, and oxygen-enriched gas adsorbed by the molecular sieve tanks firstly enters the pressure preparation gas tank to be stored and then enters the pressure preparation gas tank to be stored; and after the gas in the pressure preparation gas tank reaches the required pressure, the gas enters the oxygen storage tank. In the oxygen production process, gas can generate standby pressure in the standby pressure gas tank, so that the pressure of the molecular sieve tank is kept in a high-pressure range, the adsorption capacity of the molecular sieve on nitrogen in air is improved, the oxygen content of the oxygen production gas is improved, and the oxygen production amount can still be met under the condition that the filling amount of the molecular sieve is reduced; therefore, the sizes of the molecular sieve tank and the whole oxygen generator are reduced. In addition, oxygen is collected through the pressure preparation gas tank, oxygen is conveyed to the oxygen storage tank after certain pressure preparation is achieved, oxygen in the oxygen storage tank can be promoted to be collected, the pressure is increased, and the oxygen output requirement in the oxygen using state is met.

A deep and far sea aquaculture system based on photovoltaic-salinity difference coupling power generation hydrogen production is characterized in that solar energy is converted into electric energy through an arranged photovoltaic power generation module, and the photovoltaic power generation module is connected with a storage battery to realize energy storage; the arranged seawater desalination and electrolysis module is combined with a heliostat field and a deep sea low-temperature environment, low-energy-consumption seawater evaporation and electrolysis hydrogen production are achieved, and it is guaranteed that electric energy of photovoltaic power generation can be stably used for hydrogen production; the salinity difference power generation module is used for generating power by utilizing the concentration difference between strong brine generated in the seawater desalination process and common seawater, so that extra electric energy is provided for the system, and the influence of direct emission of the strong brine on the environment is reduced; the arranged breeding module is provided with an automatic feeder and a dissolved oxygen monitor which are connected with an oxygen storage device, so that the dissolved oxygen concentration of the water body is kept stable, and the breeding conditions are further optimized. According to the system, the energy conversion efficiency can be improved, the seawater desalination energy consumption can be reduced, and an efficient and ecological solution is provided for the combination of renewable energy sources and fishery.

The embodiment of the utility model provides a portable oxygen generator, the portable oxygen generator comprises a barrel-shaped shell arranged along the axial direction, an oxygen generation part and a compressor located at one axial side of the oxygen generation part are accommodated in the shell, the oxygen generation part comprises an upper end cover, an oxygen generation cavity and a lower end cover which are sequentially connected from top to bottom along the axial direction, gas path channels communicated with the oxygen generation cavity are arranged in the upper end cover and the lower end cover; an oxygen storage part is further contained in the shell, the oxygen storage part is arranged on the radial outer side of the oxygen generation cavity, the oxygen storage part is connected with an air outlet of the upper end cover, and an air outlet of the compressor is connected with an air inlet of the lower end cover. Therefore, each part of the oxygen generator is accommodated by the cylindrical shell, so that the oxygen generator is easy to take, and the upper end cover and the lower end cover are utilized to form the gas path channel, so that the structure of the oxygen generator is more compact, the overall size is further reduced, and the requirements of compactness and easiness in carrying can be met.

The invention discloses a cerium-zirconium-based high-entropy oxide as well as a preparation method and application thereof. According to the cerium-zirconium-based high-entropy oxide, cerium and zirconium serve as main bodies, and meanwhile rare earth elements (lanthanum, praseodymium, neodymium and samarium) and transition metal elements (manganese, iron, cobalt, nickel, copper and zinc) are introduced to form a high-entropy solid solution with the equal molar ratio and containing 3-8 kinds of metal. In the cerium-zirconium-based high-entropy oxide, the cerium element and the zirconium element respectively account for 20%-40% of the total amount, and the other elements are respectively 10%-30% in an equimolar ratio. The cerium-zirconium-based high-entropy oxide catalyst prepared by the invention has excellent oxygen storage and release capacity and CO oxidation capacity, and the CO complete conversion temperature is 181 DEG C. The method adopts a simple coprecipitation process, is mild in condition and low in cost, and is suitable for large-scale application in the field of tail gas purification.

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 relates to the technical field of oxygen generators, in particular to a nine-tower parallel type miniature pressure swing adsorption oxygen generator, which comprises: a shell, which is provided with an adsorption cavity and a valve cavity communicated with the adsorption cavity, the top surface of the shell is provided with an air outlet hole, and the side wall of the shell is provided with an exhaust hole communicated with the adsorption cavity; the adsorption oxygen production device comprises an adsorption tower, an oxygen storage tank and a control assembly, the adsorption oxygen production mechanism comprises an adsorption tower, an oxygen storage tank and a control assembly, and the control assembly comprises a valve body, a movable valve plate, a static valve plate and a driving part. Compared with the prior art, multi-channel airflow is adopted, the service life of the oxygen generation device can be prolonged, the oxygen generator is more stable, oxygen can be continuously prepared, and interruption of the oxygen generation device is avoided.

The utility model provides a concrete admixture production sewage treatment system which comprises sewage treatment equipment, a PLC (Programmable Logic Controller) and an oxygen storage tank, the sewage treatment equipment is arranged outside a concrete admixture processing plant, and a sealing cover is arranged at the top of the sewage treatment equipment; a plurality of reaction areas such as a grating tank, a regulating tank, a sludge tank, a clean water tank, an oxidation tank, a coagulation reaction tank, a coagulation sedimentation tank, a secondary reaction tank, a secondary sedimentation tank, an intermediate tank I and an intermediate tank II are arranged in the device. According to the system disclosed by the utility model, a partitioned module design is adopted, different module functions can be flexibly customized and designed according to different water qualities, the applicability of the system is improved, and sewage treatment equipment is simple in structure, small in occupied area and low in cost. The sewage treatment equipment with integrated design and the internal treatment units are mutually connected, so that the connection of pipelines is greatly reduced, communication can be realized only by punching holes in the inner wall, and the sewage treatment cost is greatly saved.

The utility model belongs to the field of renewable energy sources and energy conservation and environmental protection, and particularly relates to an integrated portable oxygen generation device which comprises a lithium ion battery, a PEM electrolytic tank, a hydrogen fuel cell, a photo-thermal interface evaporation device and an oxygen storage device. The lithium ion battery serves as a portable power source and supplies power to the electrolytic tank, a high-temperature water vapor inlet and an oxygen outlet are formed in one side of the electrolytic tank, water vapor comes from the photo-thermal interface evaporation device, and hydrogen generated on the other side of the electrolytic tank enters the fuel cell through the porous insulating spacer and the porous collector plate to serve as a raw material. And the water and the electricity react with oxygen in the air on the other side of the fuel cell to generate water and generate electric energy at the same time, and the generated water and electricity supply power and raw materials for the next electrolytic cell. According to the utility model, the coupling of the electrolytic tank and the fuel cell is fully utilized, and the photo-thermal interface evaporator is combined to generate high-temperature water vapor so as to improve the water electrolysis efficiency, so that the aim of obtaining oxygen from air in portable equipment is fulfilled, and the device can be used for supplying oxygen in a short time under special conditions such as outdoor activities and emergency treatment.

The invention discloses an intelligent oxygen generator for patients with chronic obstructive pulmonary disease, which comprises a household oxygen generator, and a portable oxygen generator is arranged on the household oxygen generator in a manner of being inserted and pulled out. The household oxygen generator comprises a main body shell, an air inlet, a display screen, a household oxygen outlet, a household humidifying water tank, a storage drawer, and a power supply, a central control module and an oxygen generation function module group which are positioned in the main body shell, the oxygen generation function module set comprises an air inlet module, an air compression module, a valve switching and control module, a separation module, an oxygen storage and buffer module and an exhaust module, the portable split type module design is adopted, so that the long-time oxygen inhalation requirement of a patient is met, meanwhile, the product supports intelligent operation, has the functions of intelligent monitoring, real-time adjustment and the like, and is suitable for popularization and application. Parameters such as oxygen concentration and flow velocity can be automatically adjusted according to different states of patients, and the problems that an existing oxygen generator is poor in environment adaptability, single in function, insufficient in portability and the like are solved.

The invention relates to an island energy system based on deep reinforcement learning. The island energy system comprises an energy device, an electrolysis device, an energy storage battery, a hydrogen storage device, an oxygen storage device, a pressure swing adsorption device, an ammonia synthesis device, a seawater desalination device and a scheduling device, the energy device inputs electric energy to the electrolysis device, the energy storage battery, the pressure swing adsorption device and the seawater desalination device; the electrolysis device is used for decomposing water provided by the seawater desalination device into hydrogen and oxygen; the pressure swing adsorption device provides nitrogen; the hydrogen storage device stores hydrogen, and then the hydrogen and nitrogen are input into the ammonia synthesis device; the oxygen storage device stores oxygen; the scheduling device constructs the real-time operation state of the system into a multi-dimensional state vector, forms an electricity-hydrogen-oxygen-ammonia-water multi-energy flow coupled balance constraint system, makes a decision on the multi-dimensional state vector based on a near-end strategy optimization algorithm, and outputs an optimal strategy parameter. According to the system, the electrolysis device serves as a hub, the global relation between electrolysis hydrogen production and multi-energy combined supply is optimized, and the low-carbon energy supply, ecological restoration and load requirements are met.

The invention discloses a high-temperature energy storage and air separation system and method for s-CO2 cycle power generation under oxygen-enriched combustion. The high-temperature energy storage and air separation system comprises a heat storage and release and air separation subsystem and a cycle power generation subsystem. The heat storage and release and air separation subsystem comprises a heat storage reactor, a heat exchanger, an oxygen storage tank, a nitrogen storage tank and a heat exchange and storage tank; the cycle power generation subsystem comprises an oxygen-enriched combustion unit and a supercritical CO2 Brayton cycle power generation unit; the oxygen-enriched combustion unit comprises an oxygen storage tank, a combustion chamber, a denitration device, a dust remover, a desulfurization device, a compression purification device and a CO2 trapping device; the supercritical CO2 Brayton cycle power generation unit comprises a turbine unit, a heat regenerator, a power generator, a condenser and a compressor; according to the invention, a novel heat and energy storage and air separation technology is matched with a supercritical CO2 cycle power generation system under oxygen-enriched combustion, and a power generation system design scheme capable of realizing oxygen self-supply, CO2 separation and high system efficiency is formed.

The invention relates to a continuous wet oxidation device for enhanced mass transfer treatment of high-salinity organic wastewater. The continuous wet oxidation device comprises a wastewater storage tank, a liquid inlet system, a high-pressure oxygen storage tank, a gas inlet system, a mass transfer enhanced reactor, a gas-liquid separation system and an oxygen recovery system, the mass transfer enhanced reactor is of a shell-and-tube structure and comprises a reactor shell and a built-in ceramic distributor; a tube pass is formed in the ceramic distributor, and a shell pass is formed between the ceramic distributor and the reactor shell; the tube pass is provided with a liquid feeding port and a liquid discharging port, and the shell pass is provided with a gas feeding port. Oxygen is distributed to a tube pass through the ceramic distributor and is quickly dispersed into micron-sized bubbles, so that the contact area between gas and liquid is increased, and the oxygen utilization rate and the reaction efficiency are improved.

The utility model discloses an oxygen generator structure with replaceable molecular sieves, comprising a casing, a molecular sieve tower, a battery valve, a bacterial filter, an air intake cover, a partition, an air intake filter, an air intake louver and other components. The molecular sieve tower adopts a modular structure in which a molecular sieve tower A tube, a molecular sieve tower B tube and an oxygen storage tube are integrated. When replacing the molecular sieve tower, it is only necessary to open the air intake cover, remove the air intake filter and the partition, and open the molecular sieve tower cover, and the entire molecular sieve tower can be inserted into the main cavity of the casing from the molecular sieve tower installation port at the bottom of the casing. After that, the air pipe of the molecular sieve tower can be quickly connected to the electromagnetic valve and the bacterial filter without the partition blocking. The utility model has a simple structure and a reasonable design, and can facilitate users to quickly and easily install and replace the molecular sieve tower.

The utility model relates to the technical field of oxygen generation equipment, and discloses a modularized oxygen generator, which comprises a main frame module, a main support, an oxygen storage tank and a control assembly, the compressor module is located on one side of the main support and detachably connected with the main support in a sliding mode through a first detachable structure. The molecular sieve module is positioned on the other side of the main bracket and is detachably connected with the main bracket in a sliding manner through a second dismounting structure; and the battery module is positioned on the lower side of the main bracket and is detachably connected with the main bracket in a sliding manner through a third detachable structure. According to the modularized oxygen generator, through the modularized design, the compressor module, the molecular sieve module and the battery module can be independently mounted and quickly dismounted, so that the independence of each functional module is improved, and the maintenance and replacement operation of the oxygen generator is greatly simplified.

The invention belongs to the technical field of first-aid equipment, and particularly relates to a first-aid platform with an oxygen uptake function, the first-aid platform comprises a main control module and an oxygen supply module, the oxygen supply module comprises a chemical oxygen generation unit, and a peroxide reaction cavity is arranged in the chemical oxygen generation unit; the oxygen supply module further comprises an adsorption oxygen storage unit; the master control module is provided with a standardized interface. In the invention, a chemical oxygen generation unit of a peroxide reaction cavity is arranged in the oxygen supply module, the dependence of a traditional molecular sieve on an external gas source and electric power is avoided, a rapid oxygen release reaction is triggered through an iron powder catalyst, the oxygen generation speed is higher than that of molecular sieve oxygen generation, and the first-aid golden time requirement can be met; meanwhile, in extreme scenes such as plateau and power failure, the oxygen production rate is automatically adjusted through an air pressure compensation valve, it is guaranteed that the oxygen flow is stably larger than or equal to five liters per minute when the altitude is 5000 m, and the oxygen production amount is attenuated in the low-pressure environment according to the patent; meanwhile, the peroxide reaction cavity is independently sealed, so that the risk of oxygen supply interruption caused by faults of a molecular sieve air compressor is avoided.

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 utility model provides a kind of fresh seafood transportation intelligence, including transport cabin, supply unit, the supply unit is used to provide clean water and oxygen to transport cabin, the supply unit includes mixing cylinder, the mixing cylinder two sides are provided with water storage tank and oxygen storage tank respectively, the water storage tank and oxygen storage tank are connected with mixing cylinder by feeding assembly, the mixing cylinder is connected with transport cabin by pumping component;Mixing assembly is provided in the mixing cylinder, and the mixing assembly is used to mix the substance in the mixing cylinder.The utility model utilizes mixing cylinder, feeding assembly and pumping component and other structures can send clean water into transport cabin, and utilize mixing assembly can mix the water body in the mixing cylinder, and cooperate temperature control component can deliver different oxygen content, temperature water body into transport cabin, can satisfy the survival needs of different seafood, ensure the survival rate of seafood in the process of transportation, reduce the cost of seafood transportation.

The invention provides a bean product freshness-locking manufacturing process using liquid nitrogen. The bean product freshness-locking manufacturing process comprises the following steps: (1) pretreatment; (2) liquid nitrogen rapid cooling; (3) temperature balancing; and (4) packaging and refrigerating. The bean products are treated through the composite fresh-keeping liquid in the pretreatment stage, surface microorganisms of the bean products can be effectively inhibited, a foundation is laid for follow-up steps, in the follow-up treatment process, the bean products are quickly frozen through liquid nitrogen, the bean products can be quickly cooled, and glassy ice layers are formed on the surfaces of the bean products, so that the bean products are quickly preserved. Oxygen is physically isolated, moisture is locked, and meanwhile, the cooling rate is accurately controlled, so that tiny and uniformly distributed ice crystals and fixed microstructures are formed in the bean product, and a protein network structure in the bean product is not damaged, so that the problems of juice loss and texture collapse after unfreezing are solved; finally, a stable and low-oxygen storage environment is provided, long-acting preservation of bean products can be achieved, and the quality can be kept.