31 results about "Oxygen gas" patented technology

Herein is disclosed a modified ethylene vinyl alcohol polymer (EVOH) comprising an oxygen scavenging functional group. Preferably, the modified EVOH comprises structures IV, V, and VI:

wherein x is an integer greater than or equal to 1, y is an integer greater than or equal to 1, z is an integer greater than or equal to 1, and R comprises a cycloalkenyl group.

The modified EVOH is useful in oxygen barrier applications, such as a forming an oxygen barrier layer of a packaging article.

Also disclosed are methods of modifying ethylene vinyl alcohol polymers, and using the modified EVOH to make packaging articles with a superior barrier to entry by atmospheric oxygen.

The invention discloses an oxygen-fluorine liposome microbubble therapeutic agent which consists of microbubbles, and oxygen and at least one perfluocarbon existing in the microbubbles, wherein the gas nucleus takes oxygen as a principle component and takes perfluocarbon as an auxiliary component, and the microbubble mainly consists of phospholipid and polyethylene glycol derivative. According to the oxygen-fluorine liposome microbubble therapeutic agent, oxygen can be controlled to be released in a human body through veins delivery and targeted hypoxia tissue under ultrasound wave irradiation, the hypoxia disease is treated, and the therapeutic agent serves as a contrast agent used for ultrasonic enhanced imaging. Therefore, the microbubble is a developing agent and an oxygenating therapeutic agent.

The invention discloses a device and method for measuring the contents of oxygen, nitrogen and part of organic gas in mixed gas. The method comprises the following steps: a mixed gas is introduced into a sample through a six-way valve; organic gas is detained through a Q column, residual oxygen and nitrogen are detected through a thermal conductivity cell (TCD) detector, a spectrogram is obtained,then the organic gas detained through the Q column is detected through a hydrogen flame (FID) detector, the spectrogram is obtained, and finally the peak areas of all components in the two spectrograms are measured through gas chromatography, so that the content of all the gases is obtained. The method disclosed by the invention is high in precision and accuracy, good in repeatability and simple,convenient and rapid to operate.

The invention discloses a device for producing magnetized high-dissolved-oxygen water and belongs to the field of medical care. The device comprises a closed tank body and a motor arranged on the tank body, wherein an open cylinder body is arranged at the internal bottom of the tank body, high-magnetism rods are arranged in the open cylinder body, a high-speed stirrer is arranged above the interior of the tank body and is connected with the motor, an oxygen gas inlet, a water inlet, a vacuumizing port and a feeding port are formed in the top of the tank body, a magnetized high-dissolved-oxygen water outlet is formed in the bottom of the tank body, and refrigerating coils are further arranged in the open cylinder body. According to the device, through increasing oxygen pressure and activating water molecules by using magnetic energy of magnetic fields, the oxygen content of filtered water can reach 120PPM, and thus the industrialized production of the high-dissolved-oxygen water is achieved.

A chemical looping combustion (CLC) process for sour gas combustion includes a number of reaction zones and is configured to provide in-situ oxygen production and in-situ removal of S02 from a product gas stream by reacting the SO2 with a calcium-based sorbent at a location within one reaction zone. The CLC process is also configured such that the in-situ oxygen production results from the use of a metal oxide oxygen carrier which is purposely located such that it does not directly contact the sour gas, thereby eliminating the generation of undesirable sulfur-based metal oxides.

The invention discloses a mine acidic iron-containing wastewater treatment method and system. Limestone macadam with a low price is used for pre-adjusting a pH value, then the pH value is adjusted tobe more than 6 through a coal ash filter material, the oxygen content in the wastewater is increased through a multi-stage ecological drop channel, and then a catalytic oxidation reaction is carried out through manganese sand contact to remove iron in the water. An interval is formed between a regulating filter tank and a contact filter tank, and an S-shaped circuitous water flow direction is formed in the regulating filter tank and the contact filter tank, so that wastewater is in full contact with fly ash and manganese sand filter materials, and neutralization reaction and catalytic oxidation reaction effects are further improved. The consumption of electric power and external consumables is extremely low, the daily operation is unattended, only sludge in the sedimentation tank needs tobe periodically cleaned, and the mine acidic iron-containing wastewater treatment method and system are particularly suitable for unattended field environments with inconvenient traffic. Compared withthe existing sewage treatment facilities, the overall investment and the later operation and maintenance cost can be greatly reduced, and good popularization values are achieved on the standard discharge of the coal mine well wastewater and the environmental protection.

The invention belongs to the technical field of air conditioner oxygen production control, and discloses an oxygen production rate control method and system, an air conditioner, computer equipment, a medium and a terminal. The oxygen production rate control method includes the steps that according to collected different data of the room area, the direction, the number of people in a room and the active condition, after the data are fed back, a controller adjusts the opening proportion of an oxygen supply valve through multiple different oxygen production rate modes, so that the oxygen concentration in the room meets a preset value. Before the controller adjusts the opening proportion of the oxygen supply valve through multiple different oxygen production rate modes, the operation needs to be carried out as follows: after the air conditioner is started to enter the oxygen production mode, whether the indoor oxygen concentration meets the standard human body oxygen demand value or not is judged. According to the oxygen production rate control method and system, the air conditioner, the computer equipment, the medium and the terminal, the oxygen production rate is controlled according to the influence of different parameters in the oxygen production mode of the air conditioner; the opening degree of the oxygen supply valve under the control of five different oxygen production rates is provided; and the oxygen production rate mode is correspondingly adjusted, and it is ensured that the oxygen concentration in the room meets the user requirements in the oxygen production mode.

The invention relates to the technical field of chemical tail gas treatment, and discloses a catalyst and a catalytic oxidation deoxidation method for unsaturated hydrocarbon-containing gas by using the catalyst. The catalyst contains a carrier, and an active component, a first auxiliary agent component and a second auxiliary agent component which are loaded on the carrier, wherein the active component is selected from one or more of oxides of Pt, Pd, Ru, Rh, Ag and Ir; the first auxiliary agent component contains one or more of rare earth metal elements, IVB group metal elements and VIII group metal elements, and the second auxiliary agent component contains one or more of alkali metal elements and alkaline earth metal elements. According to the deoxidation method using the catalyst, reducing gas such as H2 does not need to be added, hydrocarbon and oxygen directly react to generate CO2 and H2O, the purpose of deoxidizing hydrocarbon-containing tail gas is achieved, and carbon deposition can be prevented.

The invention relates to the technical field of mine air measurement, in particular to a tungsten ore underground air quality measurement device. The tungsten ore underground air quality measurement device comprises a shell body, a dust-proof mechanism is fixedly connected to the shell body, a reinforcing plate is fixedly connected to the outer side of a sealing plate, fixing frames are correspondingly connected to the two sides of the outer part of the reinforcing plate, a supporting plate is fixedly connected to the reinforcing plate, a telescopic air cylinder is fixedly connected to the upper end of the supporting plate, a bracket plate is connected to the telescopic end of the telescopic air cylinder through a connecting block, a fixing box is fixedly connected to the upper end of thebracket plate, a fixing mechanism is connected into a first through hole, the fixing mechanism is connected with a detector, and an oxygen concentration sensor and a gas concentration sensor are connected to the upper end of the detector. The invention further provides a tungsten ore underground air quality measurement method. According to the tungsten ore underground air quality measurement method and device, the oxygen concentration sensor and the gas concentration sensor are pushed to move upwards through the telescopic air cylinder, the oxygen and the gas concentration content of differentheights can be detected, and thus the detection accuracy of the underground air is higher.

The invention relates to a vacuum gas replacement crushing and continuous packaging processing device for preventing food oxidation, and more particularly, the device can prevent quality degradation caused by inhibition when coming to processing fruits and the like. Since oxidation and browning reactions may occur during the process of processing, packaging and food distributing, nitrogen is introduced into a vacuuming chamber, so that a sample such as fruit is ground in a state where oxygen is blocked, and then vacuum packaging can be achieved.

The invention relates to the field of gas-fired boilers, and specifically relates to a three-return-stroke vertical gas-fired boiler. The three-return-stroke vertical gas-fired boiler comprises a base, a boiler body, a combustion-supporting structure, a protection structure, an alarm structure, a moving structure and an angle adjusting structure. By installing the combustion-supporting structure at one end of the boiler body, gas can be introduced into the boiler body to be combusted and heated, oxygen can also be introduced into the boiler body to support combustion, so that gas combustion ismore sufficient, and then the gas utilization rate can be greatly increased; the on-off of the oxygen entering the boiler body is controlled by the on-off of the gas entering the boiler body, that is, the oxygen is introduced only when the gas enters the boiler body, so that the simultaneous introduction for the oxygen and the gas can be realized through a simple structure, the operation is simple, convenient and practical, and the on-off of the oxygen can be realized without complex control programs and control parts, so that the sufficient combustion of the gas can be ensured, the waste ofthe oxygen can also be avoided; and the protection structure is installed at one end of the boiler body.

The invention discloses a hot flue gas treatment device and method for an industrial furnace. The hot flue gas treatment device comprises a bottom plate directly placed on the ground. Meanwhile, the right end of the first smoke inlet pipe is mounted at the left upper end of the connecting cylinder; the box body is fixedly connected to the right upper end of the industrial furnace body; the filter frame of which the front-view longitudinal section is of a concave structure is placed in the middle end of the connecting cylinder; the mounting mechanism is arranged on the filtering frame; and the anti-blocking mechanism is arranged on the connecting cylinder. According to the hot flue gas treatment device for the industrial furnace and the treatment method, the filter screen can be conveniently cleaned, the filter screen is prevented from being blocked during purification, the purification speed is increased, the purification assembly is easily mounted and dismounted, meanwhile, condensed water can be conveniently collected and recycled during flue gas waste heat recovery, and the environment-friendly effect is achieved. And pure oxygen or liquid oxygen can be heated during waste heat recovery.

The invention provides a method for avoiding the pollution of a rapid heat treatment by oxygen, which is carried out before the rapid heat treatment. The rapid heat treatment is carried out in rapid heat treatment equipment which is provided with at least one heat treatment chamber and an oxygen exceeding alarm. A pad supporter, a supporting probe vertically arranged under the pad supporter and a containing groove used for containing the supporting probe are arranged at the bottom part of the chamber, and the supporting probe can pop up from the containing groove. In the prior art, only nitrogen gas is used for simply cleaning the heat treatment chamber and then the rapid heat treatment is carried out, which is easy to result in the pollution by the oxygen. As to the method of the invention, the setting of preset parameters is firstly carried out to the heat treatment chamber; and then a standard value is set as an abnormal alert value and the oxygen exceeding alarm is started, and then the chamber stands for a preset time; afterwards, the supporting probe is driven to pop up from and retract to the containing groove for a plurality of times; finally, the standard value of the oxygen exceeding alarm is adjusted to a normal alert value. By adopting the method of the invention, the pollution of the rapid heat treatment by the oxygen can be avoided.

The invention discloses passivation equipment, which comprises an isolation box, a passivation box located in the isolation box, a carrier device and a heating device, wherein the carrier device and the heating device are located in the passivation box, the carrier device bears a slice battery, the heating device controls the temperature in the passivation box, a spraying device is arranged between the carrier device and the heating device, and thespraying device sprays oxygen or sprays passivation gas on the section of slice battery. The invention further provides a passivation method. According to the passivation method, passivation treatment is conducted on the section of the slice battery through the passivation equipment, the passivation treatment comprises the step that the passivation gas makes contact with the section of the slice battery. According to the technical scheme, the spraying device is adopted to spray ozone to the section of the slice battery for passivation treatment, operation is easy, industrialized and large-scale development can be formed, the spraying pipe of the spraying device is adopted to spray passivation gas to the section of the slice battery, what is guaranteed is that the passivation gas is evenly sprayed, and the passivation effect is guaranteed.

The invention discloses a high-safety power machine for an electric vehicle, the high-safety power machine comprises a power machine case, a protective shell is fixedly arranged in the power machine case, and the interior of the protective shell is used for fixedly placing the power machine. The electric connection between the conductive moving plate and the upper and lower sides of the working connecting plate is cut off, so that the effect of instantly cutting off the power supply is achieved, the power output of the power machine is stopped, and the electric leakage caused by the collision damage of the automobile is prevented; the high-pressure carbon dioxide gas stored in the storage cavity enters the protection cavity through the communicated protection pipeline, so that the effect of isolating air at the impact point is achieved, the air at the impact point loses oxygen, the device is further prevented from burning, and more serious conditions such as explosion, spontaneous combustion and the like caused by the fact that the device is impacted and burnt are prevented.

The invention discloses an organic fertilizer fermentation device. The organic fertilizer fermentation device is characterized in that the top of a fermentation shell is rotatably connected with a fermentation door plate through a hinge; a first sliding groove is formed in one side of the fermentation door plate; the inner wall of the first sliding groove is slidably connected with a telescopic supporting rod through a sliding block; the end, away from the first sliding groove, of the telescopic supporting rod is rotatably connected with the fermentation shell through a rotating base; a placement groove is formed in the side, close to the telescopic supporting rod, of the fermentation shell; an oxygen supply support box is fixedly connected to one side of the fermentation shell; a startingmechanism is slidably connected to the lower portion of the side face of the inner wall of the fermentation shell; an oxygen supply mechanism is rotatably connected to one side of the starting mechanism; and the oxygen supply support box comprises an oxygen supply box body. The invention belongs to the field of fertilizer processing technologies. According to the organic fertilizer fermentation device, oxygen can make full contact with a fermented fertilizer, fermentation efficiency is improved, the fermented fertilizer can be prevented from entering the telescopic air pipe, the cleaning workload of workers is reduced, and the utilization rate of the fermentation device is increased.

The invention belongs to the technical field of argon recovery, and particularly relates to an argon recovery device for removing carbon monoxide through a rectification method and an operation method. The argon recovery device comprises an argon compressor, a deoxidizing reaction furnace, a cooler, an argon precooling and purifying system, and a rectification cold box; and a heat exchanger, an argon tower reboiler, a pure argon tower, a crude liquid argon throttle valve V2, a pure liquid argon throttle valve, a circulating liquid argon throttle valve V5 and an argon tower condensation evaporator are mounted in the rectification cold box. The device has the advantages that liquid argon can be conveniently provided by recycling the liquid argon in the field, and the liquid argon is used for providing cooling capacity; the mixed oxygen is removed by using hydrogen produced by water electrolysis hydrogen production, and nitrogen, carbon monoxide and excess hydrogen are removed by using the low-temperature rectification method, such that the greatest advantage is that a carbon monoxide removing device is omitted, the tolerance of raw material gas to the oxygen content is substantially improved, the argon gas recovery rate is improved, the low-temperature rectification process and operation are simplified, and the operation energy consumption is reduced.

Real-time data from cells is recorded during operation of an electrolyzer. Synthetic data is generated based on historical data of the electrolyzer and the cells, the synthetic data comprising synthetic cell voltages and synthetic product output flow, synthetic anolyte pH, feed brine pH, or oxygen in chlorine gas concentration of the electrolyzer. Cell-specific k-factors or U₀ are determined from the historical data. A slow contamination is detected when a difference between the synthetic product output flow, synthetic anolyte pH, feed brine pH, or oxygen in chlorine gas concentration and a real-time product output flow, anolyte pH, feed brine pH, or oxygen in chlorine gas concentration exceeds a first threshold. A fast contamination is detected when cell-specific k-factors or U₀ exceed a second threshold and a trend of a difference between the synthetic cell voltages and real-time cell voltages or a derivative of the difference meets or exceeds a conditional logic rule.

The invention discloses a high-temperature and high-pressure double-seal double-adjustment needle valve which comprises a valve body, a valve rod and a valve deck. The outer surface of the valve rod is coated with an anti-corrosion coating, and the anti-corrosion coating is prepared from, by weight, 25-30 parts of acrylate modified epoxy resin dispersion liquid, 10-15 parts of a curing agent, 6-8parts of a lubricant, 1-2 parts of a coupling agent, 2-3 parts of a wetting agent, 0.5-1 part of a leveling agent, and 40-50 parts of deionized water. After the anti-corrosion coating forms a film, capillary micropores do not exist, so that the corrosion of water, oxygen and chemicals to metals can be prevented, and a good anticorrosive effect is achieved; the adhesiveness of the anti-corrosion coating to the valve rod is good, and stripping of a paint film can be reduced; and in addition, the paint film of the anti-corrosion coating is tough and wear-resistant, has favorable strength, toughness and wear resistance, can prolong the service life of the anti-corrosion coating, and enhances the anticorrosive effect.

The invention relates to a dendrobium nobile preservation method which comprises the following steps: providing low-oxygen gas into an airtight enclosure, and controlling the oxygen concentration of the low-oxygen gas to be 2%-10%; maintaining the temperature in the airtight enclosure, wherein the temperature in the airtight enclosure is -10-10 DEG C; and maintaining the environment in the airtight enclosure for a preset time. According to the dendrobium nobile preservation method, the phenomena of mildewing, taste changing and water loss of the dendrobium nobile are reduced, the current storage situation that the dendrobium nobile is serious in water loss and prone to rotting is improved, and the storage and preservation period of the dendrobium nobile is prolonged.

The invention discloses a steelmaking continuous casting cutting torch with good cooling effect on the cutting nozzle, high cutting quality, fast cutting speed, low energy consumption, long service life, simple structure and small volume. It includes a torch body with an air distribution seat, a cutting nozzle located in the air distribution seat, and a water jacket on the outer wall of the air distribution seat. The cutting nozzle includes a core rod, a core seat connected with the core rod and its surrounding wall The core head is provided with several grooves, and the nozzle core sleeve is matched with the core head veneer. The core head is composed of a cylindrical section and a circular platform section. Several gas holes and preheating oxygen holes are respectively provided on the core seat, corresponding to several gas mixing holes connected to the corresponding gas holes and preheating oxygen holes. There is a high pressure oxygen hole composed of a frustum-shaped converging section, a cylindrical expansion section and an accelerating section.

The invention discloses an oxidation absorption system of NOx gas, solves the problems of serious environment pollution of exhaust gas generated by the prior art, and the like, and is characterized inthat an oxygen inlet pipe (10), a mixed gas inlet pipe (9) and a gas outlet pipe (2) are arranged on an absorption tank (5), a gas mixing and reaction chamber (1) is arranged between a reaction kettle and the absorption tank (5), and two Y-shaped gas pipes are respectively connected to the exhaust port of the reaction kettle and a gas inlet pipe of the absorption tank. The oxidation absorption system according to the invention has the advantages of reasonable structure, convenient installation, safe use, environmental protection, and high wide application and promotion values.

The invention provides a multi-layer medical oxygen device suitable for different altitudes. The multi-layer medical oxygen device comprises an oxygen device body; the oxygen device body comprises a box body, box doors, a breathing mask, an air guide pipe, a rotating shaft, a sleeve, silicone tubes, a shelf and oxygen bags; two ends of the box body are connected with shoulder straps; one side of the box body is provided with a convex plate; a first magnet is attached to the bottom of the convex plate; the box doors are arranged on the front face of the box body; a lock catch is installed on one side of each box door; hinges are arranged on the other side of each box door; sliding grooves are formed in the bottom end of the box body; a dial gauge is engraved on the front face of the box body; a rotating shaft is installed in the middle of the front face of the box body; and a handle is arranged on the surface of the rotating shaft. The multi-layer medical oxygen device suitable for different altitudes is convenient to carry, the medical oxygen bags are fast and convenient to install, the multi-layer medical oxygen device suitable for different altitudes has a good dustproof effect and a good sealing effect, and the operation of switching to oxygen bags with different concentrations at different altitudes can be fast achieved.

A method for hair straightening comprising the steps of heating a hair plate (20) at a working temperature (T), applying to the hair a gas flow that changes the gas environment around the hair, and simultaneously passing the plate (20) slowly over one lock at a time carrying out a plurality of passages. In particular, the gas environment around the hair is composed of air wherein the chemical components have been varied (for example, it is hydrogen enriched), or the oxygen percentage has been varied, or a gas compound normally not present has been added. The relative straightening device comprises a gas flow generator (10) connected, through a conduit (14), to a dispensing plate (20) heated by heating means (21); the generator (10) comprises a hydrogen generator (11) connected to dispensing means (24) provided on the dispensing plate (20) at the heating means (41).