16 results about "Oxygen extraction" patented technology

A regolith oxygen extraction system that extracts oxygen and produces molten regolith by processing and heating a continuous regolith feed. The system feeds regolith through a vertical hopper to a reaction chamber, the regolith itself sealing the inlet to the reaction chamber while maintaining continuous flow. The heated regolith reacts within the reaction chamber to produce oxygen and processed regolith. The processed regolith is removed from the reactor chamber through an extrusion nozzle, the processed regolith itself sealing the produced gases within the reactor chamber while maintaining continuous flow of processed regolith. The system employs non-contact reaction temperature measurement and rapid oxygen content measurement in the regolith upstream and downstream of the reaction zone, and may be integrated with multiple oxygen extraction methods.

The invention provides a living guarantee system for an underwater building, and relates to the technical field of underwater buildings. An oxygen extraction unit of the system is used for extracting oxygen from water; the air detection unit is used for detecting air quality parameters, determining fresh air information in the underwater building according to the air quality parameters and the current number of personnel, and sending a fresh air generation instruction and a circulation instruction based on the fresh air information; the air purification unit is used for removing carbon dioxide in air, generating first air and mixing oxygen extracted by the oxygen extraction unit with the first air to generate fresh air based on a fresh air generation instruction; and the first circulation unit is used for transmitting the recycled air to the air purification unit and feeding fresh air into the underwater building according to the received circulation instruction. According to the embodiment of the invention, the mode of extracting water from water through a pipeline can be effectively avoided, the method is not easily influenced by water depth, storm and external environment, and the reliability of survival guarantee provided by the underwater building is improved.

The invention relates to the technical field of deep learning, in particular to an extracorporeal circulation data analysis method and system based on deep learning, and the method comprises the following steps: collecting pump rotating speed, pump flow, arterial perfusion pressure, arteriovenous blood oxygen saturation, hemoglobin and lactic acid, carrying out the time alignment, completing the time sequence coding, and forming state characterization; the method comprises the following steps: correcting a state evolution direction by combining a relationship between oxygen delivery and oxygen extraction, introducing a lactic acid change trend to constrain time sequence consistency, constructing a circulating resistance matching perfusion capability according to flow and pressure, continuously correcting a state change direction, and generating an operation state analysis result. Oxygen delivery and oxygen extraction constraints are introduced to correct state evolution, a lactic acid trend is combined to strengthen time sequence consistency, resistance constraints are formed by perfusion pressure and flow, perfusion capacity changes are continuously corrected, and nonlinear state expression stability and overall interpretation coherence are improved.

The utility model belongs to the technical field of PEM water electrolysis hydrogen production, and particularly relates to a device for preventing an air outlet of an oxygen extraction fan from condensing and returning water, which comprises a double-pipe heat exchanger, a water inlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe, a water outlet pipe, a water outlet pipe, a water outlet pipe and a water outlet pipe, and is characterized in that the double-pipe heat exchanger comprises an inner pipe communicated with the air outlet of the oxygen extraction fan and an outer pipe spirally sleeved on the outer wall of the inner pipe and used for allowing a cooling medium to pass through; and the automatic drainage device is communicated with the bottom of the inner pipe and is used for collecting and draining condensate water flowing down from the inner pipe. According to the utility model, the risk that equipment is damaged due to the fact that oxygen is rich in moisture and dew flows back to the fan under the high-temperature condition when the oxygen extraction fan works in a low-temperature environment is avoided, and the system safety is improved; meanwhile, the device is simple in structure and convenient to install, equipment cost and maintenance difficulty are reduced, and the device is suitable for differential pressure PEM water electrolysis hydrogen production systems of different standard parties and has wide application prospects.

This invention provides a method, device, and computer storage medium for obtaining cerebrovascular function compensation indicators. The method includes: acquiring four-dimensional image data of a subject's brain, including dynamic magnetic susceptibility contrast-enhanced MRI data or CT perfusion imaging data; inputting the four-dimensional image data into a physical information neural network model, which outputs cerebrovascular function compensation indicators, including cerebrovascular reactivity as a first indicator and oxygen extraction fraction as a second indicator; wherein the physical information neural network model includes a compensation mapping component, which generates the first and second indicators and introduces a nonlinear inverse proportional relationship to correct the first and second indicators. This invention provides a safe, efficient, accurate, and comprehensive method for obtaining cerebrovascular function compensation indicators.

A regolith oxygen extraction system that extracts oxygen and produces molten regolith by processing and heating a continuous regolith feed. The system feeds regolith through a vertical hopper to a reaction chamber, the regolith itself sealing the inlet to the reaction chamber while maintaining continuous flow. The heated regolith reacts within the reaction chamber to produce oxygen and processed regolith. The processed regolith is removed from the reactor chamber through an extrusion nozzle, the processed regolith itself sealing the produced gases within the reactor chamber while maintaining continuous flow of processed regolith. The system employs non-contact reaction temperature measurement and rapid oxygen content measurement in the regolith upstream and downstream of the reaction zone, and may be integrated with multiple oxygen extraction methods.

The invention discloses a low-oxygen drainage treatment method for a mine return air corner, which comprises the following steps of: carrying a flexible air duct through a small-wheel vehicle platform, and realizing movement and alignment of an air duct opening by utilizing differential drive and a positioning sensor; a buffer chamber is arranged between the flexible air duct and the drainage pump, air flow entering the drainage pump is temporarily stored and stabilized, and air flow pulsation and pressure fluctuation are reduced; an air inlet of the drainage pump is communicated with the buffer chamber, an air outlet of the drainage pump is communicated with the drainage pipeline, and the drainage pump is used for guiding drainage gas to a centralized treatment system or a ground treatment device. On the control level, a drainage pump motor control model and a small-wheel vehicle control model are constructed and are used for achieving self-adaptive adjustment of the rotating speed of a drainage pump and intelligent control over movement of a small-wheel vehicle and the angle and height of an air duct correspondingly, and therefore precise treatment on a low-oxygen area is achieved. Under the complex mine pressure and ventilation conditions, stable operation can be kept, and the oxygen concentration recovery efficiency of the upper corner area of the mine is improved.

The invention relates to a gill type underwater breathing device, and belongs to the technical field of underwater breathing. The breathing device comprises a dissolved oxygen extraction membrane device, a gas storage device, a breathing device, a carbon dioxide removing device, a gas guide pipe and a one-way valve, wherein the dissolved oxygen extraction membrane device, the gas storage device, the breathing device and the carbon dioxide removing device are sequentially connected through the gas guide pipe and form a gas one-way circulation path under the action of the one-way valve; the dissolved oxygen extraction membrane device comprises a micro-fluidic chip assembled by a super-hydrophobic monomolecular porous membrane and a gas purging device, and the gas purging device is used for maintaining the partial pressure difference of gas on the two sides of the super-hydrophobic monomolecular porous membrane.

The underwater breathing device comprises a main body, and a liquid channel penetrating through the main body is formed in the main body; a plurality of groups of first dissolved oxygen extraction films are arranged in the liquid channel and are used for extracting dissolved oxygen in water; the liquid channel is also provided with a first gas channel, and the first dissolved oxygen extraction film is communicated with the first gas channel; an air outlet pipe is arranged on the first air channel, one end of the air outlet pipe is communicated with the first air channel, and the other end of the air outlet pipe penetrates out of the surface of the body. The defects that a traditional diving device is heavy, poor in sustainability, limited in movement range and the like are overcome, the two-in-one fusion mode of the dissolved oxygen extraction film and the semi-submersible type sliding plate is applied, underwater breathing gets rid of constraint of a compressed air bottle, and the purposes of improving flexibility, duration and safety of underwater diving are achieved.

The invention relates to the field of oxygen analysis devices, in particular to a trace oxygen analyzer oxygen extraction device which comprises a machine shell, a U-shaped detection pipeline is fixedly connected into the machine shell, an exhaust pipe is fixedly communicated with the side wall of the end of an exhaust channel above the U-shaped detection pipeline, and an electrochemical sensor is arranged on the inner wall of the other end of the U-shaped detection pipeline and used for detecting the oxygen concentration. An air inlet pipe is fixedly communicated with the side wall of the end of the air inlet channel below the U-shaped detection pipeline, and a sealing assembly is arranged in the air inlet pipe and used for sealing the air inlet pipe after detection is finished. By arranging the piston, the sealing rod, the pushing mechanism, the guiding inclined plane and the collecting pool, water vapor in residual gas can be automatically compressed after each time of detection, the water vapor is accelerated to be condensed into liquid water, and the liquid water is collected through the collecting pool, so that the water vapor is prevented from polluting the sensor, and the detection accuracy is improved. Meanwhile, cross contamination of next sample measurement is avoided, and the accuracy and the stability of a detection result are guaranteed.

The invention provides a multi-contrast parameter photoacoustic microscopic imaging data integrated processing system and method, and the system comprises a preprocessing module which is used for obtaining a preprocessed multispectral photoacoustic microscopic image; the morphological data processing module is used for calculating morphological parameters; the functional data processing module is used for calculating functional parameters; the metabolic data processing module is used for calculating metabolic parameters; wherein the metabolic parameters comprise an oxygen extraction rate and an oxygen metabolic rate; the blood vessel complexity calculation module is used for carrying out fractal dimension and Lacunity parallel calculation to obtain the blood vessel complexity and the blood vessel clearance degree; and the fusion display module is used for fusing and displaying the calculation results of the morphological parameters, the functional parameters, the metabolic parameters, the blood vessel complexity and the blood vessel clearance degree. According to the technical scheme, the problem of inconsistency during independent calculation of all parameters in a traditional distributed processing method is solved, and a comprehensive and accurate quantitative analysis tool is provided for comprehensive evaluation and scientific research application of the blood vessel function.

The utility model relates to the technical field of gas separation, in particular to an air separation device extending coarse krypton xenon, high-purity oxygen, nitrogen circulation and oxygen recovery device which comprises an air separation device which is connected in parallel with a 50m < 3 > vertical liquid oxygen storage tank and a 2000m < 3 > liquid oxygen storage tank through pipelines. The 50m < 3 > vertical liquid oxygen storage tank is sequentially connected with the coarse krypton and xenon extraction device and the coarse krypton and xenon product tank through pipelines, the coarse krypton and xenon extraction device is connected with the valve I and the valve II in parallel through pipelines, the valve I is connected with the 2000m < 3 > liquid oxygen storage tank in series through a pipeline, the valve II is connected with the high-purity oxygen extraction device through a pipeline, and the high-purity oxygen extraction device is connected with the coarse krypton and xenon product tank through a pipeline. And the high-purity oxygen extraction device is sequentially connected with the valve III and the 2000m < 3 > liquid oxygen storage tank through pipelines. The coarse krypton and xenon extraction device is arranged to obtain coarse krypton and xenon products, residual liquid oxygen enters the high-purity oxygen extraction device to obtain high-purity oxygen products, and finally the residual liquid oxygen returns to the 2000m < 3 > liquid oxygen storage tank.

The present invention relates to a system for monitoring the physiological variables of a patient who is supplied with oxygen through an oxygen concentrator. It contains a central control device which makes the concentrator's operating process controlled by the oxygen extraction device. This device also controls the monitoring of three fundamental variables of a patient: the first measurement is the electrical activity of the heart through an electrocardiogram, another measurement is body temperature, and finally the oxygen saturation level and pulse rate for real-time display.All of this is aimed at streamlining essential patient measurements to reduce costs for additional medical devices, and to ensure the patient is adequately monitored for their medical condition. Furthermore, these measurements were the most requested during the SARS-CoV-2 virus pandemic, and having them under control could save lives.

The utility model provides a kind of micro-resistance breathing regulator, including upper shell, lower shell, valve piece, soft glue valve piece and support column, upper shell is hollow inside, top is equipped with oxygen extraction mouth, side is equipped with air inlet pipe, air inlet pipe is equipped with the buffer area and air inlet area separated by sealing plate, the middle part of sealing plate is equipped with air inlet passage, lower shell bottom is equipped with air supplement hole, inside is equipped with placement ring, soft glue valve piece is located above placement ring, support column is placed in the middle part of soft glue valve piece, push rod is connected in the side surface of valve piece, the rod of push rod is equipped with limit piece, spring is equipped between limit piece and valve piece, valve piece is arranged in air inlet area, push rod is arranged in the top of support column after passing through air inlet passage, one end of spring is against the sealing plate of buffer area side, the other end is against the side surface of limit piece. The utility model utilizes the gravity effect of support column itself and the effect of spring to exert the pressure of push rod under pressing, so that support column can be quickly reset to cut off oxygen passage after stopping oxygen absorption, avoid too much oxygen to be inhaled.

A regolith oxygen extraction system that extracts oxygen and produces molten regolith by processing and heating a continuous regolith feed. The system feeds regolith through a vertical hopper to a reaction chamber, the regolith itself sealing the inlet to the reaction chamber while maintaining continuous flow. The heated regolith reacts within the reaction chamber to produce oxygen and processed regolith. The processed regolith is removed from the reactor chamber through an extrusion nozzle, the processed regolith itself sealing the produced gases within the reactor chamber while maintaining continuous flow of processed regolith. The system employs non-contact reaction temperature measurement and rapid oxygen content measurement in the regolith upstream and downstream of the reaction zone, and may be integrated with multiple oxygen extraction methods.

The utility model discloses an oxygen-enriched sintering roller way kiln which comprises a supporting base, a roller way shell, an oxygen pumping mechanism and an oxygen supply mechanism, the oxygen pumping mechanism and the oxygen supply mechanism are installed on one side of the roller way shell, the oxygen pumping mechanism comprises an isolation net, a flow guide fan, a flow guide pipe, a flow pipe, a compressor and a screening isolation cylinder, and the isolation net is installed on one side of the flow guide fan; the flow guide fan is installed on one side of the roller way shell, a compressor is connected to the flowing pipe in an inserted mode, the screening isolation barrel is installed on the side, away from the compressor, of the flowing pipe, and the oxygen supply mechanism comprises a heating oxygen supply pipeline, a preheating oxygen supply pipeline and a cooling position. The flowing pipe is communicated with the heating oxygen supply pipeline and the preheating oxygen supply pipeline at the same time, and a check valve is arranged in the middle of the flowing pipe. And under the condition that oxygen in cooling air is purified and reused by the oxygen pumping mechanism and under the support of the oxygen supply mechanism, the stability and the energy-saving effect of the device during oxygen-enriched operation are ensured.