112results about "Oxygen preparation" patented technology

The invention discloses a molecular film type automotive nitrogen and oxygen separation device which comprises a turbocharger, a nitrogen and oxygen separator, a gas inlet valve, a gas outlet valve, a negative pressure pump and an electric control throttling valve. The turbocharger is driven by a turbine in an automobile turbocharger, so that the air is compressed to be conveyed to two paths of the nitrogen and oxygen separation device, the nitrogen and oxygen separation device can separate oxygen from the air, the air with high oxygen content is output, and the air is supplied to an engine for use through the gas outlet valve. The two paths of the nitrogen and oxygen separation device work alternately, when the temperature of the two paths of the nitrogen and oxygen separation device is too high to influence oxygen production efficiency, a main air inlet pipeline is opened to provide air normally by controlling the opening degree of the electric control throttling valve, and thus the phenomena of gas circuit plugging and engine stalling are avoided. According to the automotive nitrogen and oxygen separation device, the two branch paths work alternately, high concentration oxygen can be supplied to the engine continuously so that fuel can burn and act, and the burning utilization rate of the fuel is improved.

This utility model relates to an automatic switching device between a backup oxygen supply system and an oxygen generator, belonging to the field of oxygen supply assurance technology. An intake valve B is installed at one end of the backup oxygen supply main pipe connected to a four-way connector. A connecting pipe A connects the main oxygen supply main pipe and the backup oxygen supply main pipe. Intake valves C and D are installed on the connecting pipe A. The third interface of the four-way connector is connected to the connecting pipe B. The other end of the connecting pipe B is connected to the connecting pipe A between intake valves C and D. A first gas pressure sensor is installed on the oxygen supply pipe. This utility model has the following advantages: it provides two different oxygen sources. When the oxygen generator malfunctions, it can automatically switch to the backup oxygen supply system. When the oxygen generator returns to normal, it can automatically switch back to the main oxygen generator. The backup oxygen supply system can guarantee daily oxygen use, ensuring a stable oxygen supply and meeting the hospital's oxygen needs.

This application provides an oxygen generator system, belonging to the field of oxygen generator technology. The oxygen generator system includes: a molecular sieve module, comprising an air inlet, a nitrogen outlet, and an oxygen outlet; a compressor for supplying compressed air to the molecular sieve module; a first valve group including a first one-way valve located at the air inlet and a second one-way valve located at the nitrogen outlet, the first one-way valve including a state that maintains the flow of air to the molecular sieve module and a closed state that blocks the flow, the second one-way valve including a state that maintains the flow of nitrogen discharge from the molecular sieve module and a closed state that blocks the flow; and an intelligent delayed shutdown module for controlling the oxygen generator system to reach a shutdown state after shutdown by a predetermined time to discharge residual moisture, wherein when the oxygen generator system reaches the shutdown state, the compressor is turned off and both the first and second one-way valves are closed. This application can solve the problems of external moisture being difficult to block and internal moisture residue existing in the prior art.

A kind of multilayer adsorption tower oxygen generator, including adsorption tower tank body and connecting pipeline, multiple molecular sieve trays are arranged in vertical direction in adsorption tower tank body, molecular sieve tray is equipped with multiple vertical direction extension micro air flow channel, the micro air flow channel of adjacent molecular sieve tray is aligned, and molecular sieve particle is arranged in the upper end and lower end of micro air flow channel.Multiple molecular sieve trays can form multilayer structure, and the multilayer adsorption tower oxygen generator can be adjusted after a certain period of use, for example, the lowermost molecular sieve tray is moved to the upper side, or the uppermost molecular sieve tray is moved to the lowermost end, effectively avoiding the problem of reducing nitrogen adsorption efficiency when the lower molecular sieve fails.This structure design makes a large amount of nitrogen be adsorbed before entering the adsorption tower, reduces the gas flow resistance, significantly improves the nitrogen adsorption capacity, thereby solving the technical problems that the molecular sieve will fail in the prior art, and the oxygen concentration decreases with the change of use time.

The application provides a high-temperature pressure swing adsorption pure oxygen production equipment, which comprises a filter, an inlet of the filter is connected with an air pipeline, an outlet of the filter is connected with an inlet of a blower, an outlet of the blower is connected with an inlet of an air buffer tank, the blower is connected with a frequency converter, an outlet of the air buffer tank is connected with a first inlet of an adsorption tower, a second inlet of the adsorption tower is connected with an outlet of an oxygen back flushing tank, an outlet of the adsorption tower is connected with an inlet of a vacuum pump, an inlet of the oxygen back flushing tank is connected with an outlet of an oxygen buffer tank, the oxygen buffer tank is connected with an oxygen analyzer or a chromatograph and an oxygen flow meter, an outlet of the oxygen buffer tank is connected with an air outlet pipeline, and an outlet of the vacuum pump is connected with the air outlet pipeline. The application uses the principle of pressure swing adsorption, proposes a novel pressure swing adsorption process and equipment, breaks through the limitation of product oxygen purity, and obtains oxygen with a purity of ≥99.5%, thereby expanding a new application field of the pressure swing adsorption oxygen production process.

The application discloses a kind of recovery device for nitrogen making machine, it is related to nitrogen making machine technical field, including processing table, the top of the processing table is fixedly installed with nitrogen making mechanism, the surface of nitrogen making mechanism is fixedly penetrated with inlet pipe, the surface of inlet pipe is fixedly installed with fixed pipe, the top of fixed pipe is rotatably penetrated with inlet valve, the surface of fixed pipe is fixedly installed with round pipe, knock plate is rotatably installed on the inner wall of round pipe, the surface of knock plate is fixedly installed with elastic sheet, the inner wall of round pipe is fixedly installed with clamping plate, the inner and outer walls of round pipe are rotatably penetrated with baffle, by triggering the rotation of baffle, avoid the situation of leakage when inlet pipe continues to discharge oxygen-rich waste gas, realize the effective management of oxygen-rich waste gas leakage, effectively reduce the waste of resources when leakage occurs.

The application discloses an oxygen supply device, which comprises a device body, a pre-filter, an air compressor, a heat exchanger, an electromagnetic valve, a control circuit, an air adsorption device, an oxygen storage tank and an oxygen supply mechanism which are sequentially connected in the device body. The air adsorption device comprises an air conveying structure, an oxygen conveying structure, a nitrogen output structure and at least two molecular sieve towers which are connected in series. The molecular sieve towers have a first working state of adsorbing oxygen and a second working state of backwashing and discharging nitrogen. The oxygen supply device further comprises a gas pressure sensing detection member and a gas pressure elastic detection member which are arranged in an air inlet cavity. With the gradual increase of the air pressure in the air inlet cavity, the gas pressure sensing detection member and the gas pressure elastic detection member are triggered in sequence to switch the molecular sieve towers from the first working state to the second working state. The oxygen supply device can quickly discharge nitrogen in the air adsorption device, thereby improving the efficiency and quality of air oxygen production.

The application relates to the technical field of oxygen flow control of an oxygen generator, and discloses an oxygen generator flow automatic control method and system, an oxygen generator flow automatic control method, which comprises the following steps: configuring a target oxygen configuration flow and a target oxygen concentration required by target personnel; acquiring actual oxygen flow and actual oxygen concentration in real time; calculating an effective oxygen uptake deviation; when the effective oxygen uptake deviation is not lower than a specified oxygen uptake, dynamically acquiring a short-time oxygen configuration flow; generating a flow control signal through a preset PID control algorithm based on the deviation between the short-time oxygen configuration flow and the actual oxygen flow; and driving a flow adjustment actuator to output oxygen according to the flow control signal; a first parameter group is adopted during an inhalation phase of the target personnel, and a second parameter group is adopted during an exhalation phase of the target personnel, wherein, and, the response delay of the patient during a rapid inhalation phase is reduced, the oxygen waste during the exhalation phase is reduced, and the method is especially suitable for irregular breathing modes of COPD patients.

This invention relates to an oxygen generator with a pressure balancing device, comprising a molecular sieve tower, a base, and a top seat. The base has a main air inlet, a main nitrogen outlet, and three molecular sieve tower mounting positions, each with an air inlet and a nitrogen outlet. A magnetic coupling control mechanism at the center of the base controls the connection between the base and the main air inlet and nitrogen outlet. The top seat has a main oxygen exhaust pipe and three mounting positions, each with an oxygen exhaust port. A magnetic coupling control mechanism at the center of the top seat controls the connection between the top seat and the pressure equalization pipe. The oxygen exhaust ports are connected to the main oxygen exhaust pipe via flexible hoses. The molecular sieve tower comprises an outer cylinder, a honeycomb inner cylinder, and molecular sieve particles. The honeycomb inner cylinder is composed of hexagonal permeable small cylinders with gaps between adjacent cylinders. The pressure equalization port on the side wall of the outer cylinder is connected to the pressure equalization pipe. This invention uses a magnetic coupling control mechanism instead of multiple solenoid valves, simplifying the structure, reducing the size, and adapting to small oxygen generators. The honeycomb structure and pressure equalization port design achieve rapid pressure equalization, mitigate molecular sieve impact, prevent pulverization, and extend its service life.

This invention provides a method for preparing a wood-based monolithic carbon molecular sieve and its application in nitrogen and oxygen separation. The wood-based monolithic carbon molecular sieve is obtained by primary carbonization, impregnation modification, and secondary carbonization of natural wood. The modifier includes a rigid nitrogen-containing heterocyclic aromatic compound. The process follows a simple route of "primary carbonization to construct the framework – organic molecule impregnation – secondary carbonization deposition to adjust the pore size," requiring no external binder. The carbon deposition generated by the pyrolysis of the modifier at high temperature effectively and controllably reduces the micropore size of the wood-based porous carbon, adjusting it to a size range with ideal kinetic sieving effect for nitrogen and oxygen molecules. The resulting monolithic carbon molecular sieve exhibits a significant difference in diffusion rates for oxygen and nitrogen, demonstrating high oxygen / nitrogen kinetic separation selectivity, making it suitable for efficient pressure swing adsorption (PSA) nitrogen and oxygen separation processes. It offers potential advantages such as low energy consumption, high efficiency, good material strength, and long service life for air separation for nitrogen production or oxygen enrichment.

This invention relates to an RGO-CaTiO3 composite material for photocatalytic water splitting, its preparation method, and its applications, belonging to the field of photocatalytic materials technology. This invention utilizes a high-temperature molten salt medium to synthesize cubic phase ACTO nanoparticles, and then grows RGO in situ on the ACTO surface via hydrothermal methods to obtain R / ACTO nanoparticles, which can be applied to photocatalytic water splitting. The R / ACTO photocatalyst of this invention exhibits good controllability and strong stability. The cubic phase CTO nanoparticles with their unique morphology possess spatially separated redox sites, and the high conductivity of RGO further enhances its advantages. 2 Carbon frameworks, acting as electron storage and rapid charge transport channels, significantly accelerate surface reduction reactions, effectively suppress reverse reactions in photocatalytic processes, reduce the recombination rate of photogenerated electrons and holes, and improve carrier separation efficiency, thus achieving simultaneous water splitting for hydrogen production and oxygen evolution. This invention is environmentally friendly, simple, easy to operate, and low-cost, possessing broad market prospects.

The present invention relates to an industrial dust mask including an oxygen generating element, and more particularly, to an industrial dust mask including a mask body, a fixing band for fixing the mask body to a face of a wearer, an exhaust unit formed in an outer surface area of the mask body and provided with an exhaust port for discharging exhaled air of the wearer to the outside, and an oxygen generating element inserted into an area of the exhaust unit, which receives water vapor and carbon dioxide generated by breathing of the wearer and generates oxygen by a chemical reaction. A through hole is formed in the mask body and the exhaust unit so that a part of the exhaled air of the wearer discharged to the outside through the exhaust port of the exhaust unit is transferred to the oxygen generating element inserted in the exhaust unit through the through hole to generate oxygen. The oxygen generated by the oxygen generating element is supplied to the wearer through the through hole when the mouth and nose of the wearer inhale.

This utility model belongs to the field of oxygen generation technology and discloses an oxygen generation device, including a chassis, an air compressor unit, a filter assembly, a cooling assembly, and an oxygen generation component. The chassis includes an outer chassis and an inner chassis. The inner chassis is located inside the outer chassis and is inverted against the bottom wall of the outer chassis. The bottom wall of the outer chassis has an exhaust port, and the side walls of the outer chassis have an intake port and an oxygen exhaust connector. The top of the inner chassis has a cold air vent. The air compressor unit is located in the inner chassis. The filter assembly includes a primary filter and a secondary filter. The primary filter is located at the intake port, and the secondary filter is located on the outer side wall of the inner chassis, and the secondary filter is connected to the air inlet of the air compressor unit. The cooling assembly includes a radiator and a cooling fan. The radiator is connected to the air compressor unit. The oxygen generation component is located inside the outer chassis. The air inlet of the oxygen generation component is connected to the radiator, and the air outlet is connected to the oxygen exhaust connector. This oxygen generation device has good heat dissipation, high operational stability, a compact structure, high utilization of the internal space of the chassis, and a long service life.

The application discloses a kind of multi-point adjustable servo drive for pressure swing adsorption equipment, belong to oxygen preparation adsorption equipment technical field.Multi-point adjustable servo drive for pressure swing adsorption equipment, including adsorption equipment body, bottle neck and the sealing cover of installation in bottle neck top surface.The multi-point adjustable servo drive for pressure swing adsorption equipment, according to the pressure of gas into, pressure gauge detects the change of pressure in real time, control the size of coil current in upper iron block, so that the electromagnetic force between upper iron block and lower iron block changes according to the change of gas pressure, so that F 电 +F 弹 =F 气 +F 破 Realize that the position of separation plate in adsorption equipment body is stable, reduce the displacement of separation plate in adsorption equipment body, reduce the displacement of filler, avoid the problem that the granularity is smaller or broken caused by friction between fillers, improve the separation ability of filler to impurities in gas, further improve the preparation efficiency of gas.

This invention discloses a non-uniform segmented hollow fiber membrane for oxygen generation in high-altitude trains. Specifically, the fiber membrane is divided into a front section and a rear section along the axial direction, and the front and rear sections are integrally formed. The front section uses a high-permeability material, while the rear section uses a low-permeability, high-selectivity material. The segmentation ratio, i.e., the percentage of the front section length to the total membrane length, is 30%-70%. This invention solves the problem of traditional homogeneous membranes being limited by the upper limit of the "permeability-selectivity" trade-off, achieving increased oxygen-enriched gas flow rate, concentration, and oxygen generation rate. It meets the synergistic requirements of high flow rate and high purity for oxygen supply systems in high-altitude trains, and can directly replace existing membrane modules, featuring low energy consumption and strong adaptability.

The present invention provides embodiments of a shoe sole for capturing CO2 and converting it to O2, comprising at least one sorbent configured for adsorbing CO2 from an intake air provided to at least one sorbent zone comprising the at least one sorbent, wherein the at least one sorbent comprises at least one surface configured for converting the adsorbed CO2 to O2; a plurality of air intake means configured for providing the at least one sorbent zone with the intake air comprising CO2; a plurality of air outlet means configured for evacuating an outlet air from the at least one sorbent zone, wherein the outlet air comprises less CO2 by concentration than the intake air; at least one first one-way valve configured for regulating a flow of the intake air from the air intake means to the at least one sorbent zone; and, at least one second one-way valve further configured for regulating a flow of the outlet air from the at least one sorbent zone to the air outlet means.

The application discloses a kind of gas production devices, including air inlet and exhaust unit, fan unit, molecular sieve adsorption unit, oxygen buffer unit and control unit;The air inlet and exhaust unit includes filter for filtering air and silencer;The fan unit includes fan motor and fan driven by fan motor, the air inlet of the fan is communicated with the air inlet and exhaust unit, and the air outlet is communicated with the molecular sieve adsorption unit.A kind of gas production device of the application maximally simplifies the process in air separation gas production process, effectively removes the number of components in the process, and the number of device components is only 40-60% of the current process device, the whole process is atmospheric state, more than 50% energy saving than existing process device, the reduction of component reduces the complexity of process control, low operating cost, while reducing maintenance difficulty.

The present application relates to a kind of load CoP / Bi4TaO8Cl composite material, the composite material is made of layered Bi4TaO8Cl and cobalt phosphide nanoparticles composite, the layered Bi4TaO8Cl is carrier, the cobalt phosphide nanoparticles are loaded on the surface of carrier, form CoP / Bi4TaO8Cl heterojunction structure.Compared with the prior art, the present application selects Cl ‑ Based Bi4TaO8Cl as carrier.Compared with Br ‑ , Cl ‑ With stronger electronegativity, and Ta 5+ , Bi 3+ In the lattice, it is more firmly combined, so as to give the carrier higher structural stability.More importantly, this change makes Bi4TaO8Cl have more positive potential valence band top, and the photo-generated hole has stronger oxidation ability, and provides more sufficient and fundamental driving force for high-energy barrier water oxidation reaction (OER) in thermodynamics.

This invention provides a silencing device and a portable oxygen concentrator. The silencing device includes: a chamber forming section having a defined gas inlet position and a defined gas outlet position, enclosing and forming a chamber connecting the gas inlet and outlet. The chamber forming section includes: a partition section dividing the chamber into a confluence region, a first air path, and a second air path, the first and second air paths running parallel, with the first air path having a shorter path than the second air path. A nozzle is defined by the partition section at the downstream end of the second air path. The partition section disperses the airflow entering the chamber into the parallel first and second air paths, ensuring the first air path has a shorter path than the second air path. The nozzle at the downstream end of the second air path allows the airflow from the second air path, after traveling a longer path, to exit from the nozzle and impact the first air path, creating airflow impact and turbulence, thereby effectively dispersing the airflow and consuming its energy, achieving silencing within a limited space.

The application discloses an oxygen generator with a mute structure and belongs to the technical field of gas separation equipment, comprising: a shell assembly, an internal main frame, a power-gas path core module, a multi-point elastic suspension system, a multi-stage composite exhaust silencing assembly and a control unit. The power-gas path core module is suspended in the internal main frame through the multi-point elastic suspension system, effectively isolating vibration; the exhaust silencing assembly suppresses gas discharge noise; the shell adopts a constraint damping laminated board and covers sound-absorbing cotton to block sound absorption; internal connections are all flexible; and the control unit adopts a valve slow opening and slow closing strategy. The application has the beneficial effects that: by adopting the above technical scheme, the application can greatly reduce the overall operation noise of the equipment, improve user comfort, and realize the balance between oxygen production performance and mute effect.

The application belongs to the technical field of photocatalytic materials, and particularly relates to a photocatalyst with a heterojunction of a carbon layer with adjacent Ni-Co double-site nitrogen coordination-SrTiO3, and preparation and application thereof. A nickel source, a cobalt source and a carbon precursor are mixed to form a precursor component; the precursor component is mixed with a nitrogen-containing precursor and heat-treated under an inert atmosphere to obtain a nitrogen-doped carbon material containing Ni-Co adjacent double sites; and then the nitrogen-doped carbon material is solvent-assembled with SrTiO3 to prepare a target photocatalyst. The photocatalyst comprises a SrTiO3 carrier and a nitrogen-doped carbon layer containing Ni-Co adjacent double sites loaded on the surface of the carrier, Ni and Co exist in a highly dispersed state and are coordinated with N, and a heterojunction coupling structure is formed between the nitrogen-doped carbon layer and the SrTiO3. The photocatalyst is used for overall decomposition of water, and has good photocatalytic activity and long-term stability. The application has good application prospects because raw materials are easy to obtain, the process is simple, and no noble metal is needed.

This invention provides an oxygen-generating component and an air conditioner. The oxygen-generating component includes: a shell structure having an exhaust port, an oxygen-generating inlet, and a ventilation inlet; the exhaust port is connected to the outside, and both the oxygen-generating inlet and the ventilation inlet are connected to the indoor unit; an oxygen-enriched membrane structure disposed within a cavity of the shell structure; and a fan blade rotatably disposed within the cavity of the shell structure. The oxygen-generating component has an oxygen-generating mode and a ventilation mode. In the oxygen-generating mode, the ventilation inlet is closed, the oxygen-enriched membrane structure operates, and the intake air undergoes oxygen and nitrogen separation through the oxygen-enriched membrane structure. Nitrogen is output to the outside through the exhaust port, while oxygen is delivered to the indoor unit. In the ventilation mode, the ventilation inlet is open, the oxygen-enriched membrane structure stops operating, and the intake air is output to the outside through the exhaust port. This solution integrates oxygen generation and ventilation functions in a space-constrained air conditioner, avoiding the increased structural complexity caused by separate oxygen-generating and ventilation structures, and reducing the energy consumption of the air conditioner.

This utility model relates to the field of cold box devices and discloses an oxygen-generating cold box structure, including a main structure. The main structure includes an outer shell, a top plate snapped onto the upper surface of the outer shell, a condensing structure fixedly mounted on one side of the inner wall of the outer shell, the condensing structure including a condenser, a vent valve fixedly mounted on one side of the upper surface of the top plate, a safety valve fixedly mounted at the center of the upper surface of the top plate, upper positioning plates fixedly mounted around the lower surface of the top plate, a connecting post threadedly connected to the upper positioning plate on the other side of the lower surface of the top plate, a mounting seat slidably connected to the outer surface of the connecting post, and an observation window fixedly mounted at the center of one side of the outer shell. In this utility model, the condenser and condensing box in the condensing structure work together to effectively convert gaseous substances into liquids, improve condensation efficiency, ensure that the working medium can quickly and fully complete the phase change process, and meet the working requirements of the equipment.

This utility model provides a coaxial tube counter-current oxygen generation system heat exchange device, comprising: a first coaxial tube, inside which is a second coaxial tube, and an outer casing tube wrapped around the first coaxial tube, which is composed of two sets of semi-casing tubes. Connecting components are fitted on both sides of the semi-casing tubes, and recovery components are fitted on both the inner and outer walls of the first coaxial tube; and an insulation box, which is placed on one side of the first coaxial tube. This utility model enhances heat exchange through counter-current heat exchange and spiral coils: the spiral coils enhance turbulent heat exchange; and the combined operation of double-layer spiral recovery effectively improves the overall heat exchange effect compared to straight-tube heat exchangers. Assembled by two semi-casing tubes connected by quick-release components with rubber gaskets, maintenance does not require disassembly of the main pipeline, and the bolted connection structure shortens assembly and disassembly time.

The present application relates to a kind of oxygen production module and chemical oxygen self-rescuer of enhancing oxygen production efficiency, belong to respiratory protection technical field, solve the problem of low oxygen production efficiency, short oxygen supply time of chemical oxygen self-rescuer in prior art.The present application includes air intake gradual expansion soft mouth and slot type medicine jar, the air intake gradual expansion soft mouth is located in the upper end of the slot type medicine jar;The air intake gradual expansion soft mouth includes air intake nozzle and arc gradual expansion part, the air intake nozzle is located in the middle of the arc gradual expansion part, gradually expands to form arc gradual expansion part from the air intake nozzle downwards and outwards, the arc gradual expansion part is connected with the top of the slot type medicine jar.The inlet of the air intake gradual expansion soft mouth of the present application is relatively narrow, gradually expands to outlet outwards, it is helpful to gas to pass through an acceleration section first when entering, then gradually reduces in gradual expansion section Speed, can effectively reduce the flow velocity in slot type medicine jar, reduce the flow velocity of reaction gas flowing through the surface of oxygen production agent medicine particle, so that reaction is more uniform, and then improve oxygen production efficiency.