40 results about "Consumption oxygen" patented technology

A membrane electrode assembly includes an anode, a cathode, a membrane disposed between the anode and the cathode, and an extended catalyzed layer between the cathode and the membrane, the extended catalyzed layer being adapted to consume oxygen and decompose hydrogen peroxide to produce water.

The invention discloses a whole-process autotrophic nitrogen removal method. The method mainly comprises the following steps: 1) inoculating anammox sludge into a reactor; 2) introducing nitrogen into the wastewater so as to reduce the DO (Dissolved Oxygen) concentration of wastewater to 0mg / L (milligram per liter) by filling nitrogen into the wastewater, and regulating the pH value of a water inflow barrel to reach 7 to 8; 3) gradually increasing the water inflow load by increasing the total nitrogen concentration of the wastewater and reducing the hydraulic retention time; 4) gradually increasing the DO concentration in the wastewater after a reaction is stable, thereby culturing bacteria capable of consuming oxygen in the reactor; 5) forming the oxygen-containing bacteria on the outer layer of the anammox sludge after performing the culturing acclimatization for half a month; 6) inoculating nitrosobacteria into the reactor and properly lowering the nitrate nitrogen concentration in the inflowing water while performing aeration to the reactor and controlling aeration quantity at the same time, thereby partially converting ammonia nitrogen entering the reactor into the nitrate nitrogen, i.e., the concentration (mg / L) ratio of the ammonia nitrogen to the nitrate nitrogen is 1:1 or so; regulating the pH value in the reactor to reach 7.5 to 7.7 by using a pH controller; 7) gradually increasing the water inflow load, thereby removing the nitrogen stably. The invention further discloses a device for realizing the whole-process autotrophic nitrogen removal method.

The invention relates to a method for monitoring and controlling the regeneration of a particle filter in an exhaust gas duct of an internal combustion engine, wherein said regeneration of the particle filter takes place by means of an oxidative burning off of particles during a regeneration phase. Provision is made according to the invention for the internal combustion engine to be operated at a lean operating point at least intermittently during lean operating phases or during a mixture oscillation and for the regeneration of the particle filter to be monitored during the lean operating phases or during the mixture oscillation via the temporal course of a second signal of a second lambda probe disposed in the exhaust gas direction downstream of said particle filter or of a second parameter derived therefrom in comparison to the temporal course of a first signal of a first lambda probe disposed in the exhaust gas direction upstream of said particle filter or of a first parameter derived therefrom. The invention also relates to a corresponding device. During the lean operating phases or the mixture oscillation, the first lambda probe disposed upstream of the particle filter emits a signal for a correspondingly lean lambda value. Oxygen is consumed from the exhaust gas by means of the oxidative burning off of particles in the particle filter. The oxygen concentration in the exhaust gas downstream of the particle filter is therefore lower than upstream of said particle filter. For that reason, the second lambda probe disposed downstream of said particle filter emits a signal for a richer lambda value in comparison to the first lambda probe during the lean operating phases or during the mixture oscillation. If the burn-off of particles has ended, the difference between the signals of the first and second lambda probe disappears.

The invention discloses a low-energy-consumption oxygen-enriched combustion system coupling solar energy and chemical looping air separation. The system comprises a dry steam preparing device, a chemical looping air separation device and an oxygen-enriched combustion device. The dry steam preparing device comprises a solar thermal collector, a steam generator and a distributor. Dry steam generated by the dry steam preparing device is divided into two parts by the distributor, one part of the dry steam enters the chemical looping air separation device to serve as the fluidization gas of an oxygen suction reactor, and the other part of the dry steam enters the oxygen-enriched combustion device. High-purity oxygen generated by the chemical looping air separation device enters the oxygen-enriched combustion device to be mixed with the dry steam and fuel for mixed combustion, and high-purity carbon dioxide is acquired by simply condensing and separating combustion products. The low-energy-consumption oxygen-enriched combustion system has the advantages that the dry steam prepared by solar energy can be used as the fluidization gas of the chemical looping air separation device and can also be fed into the oxygen-enriched combustion device to participate in combustion reaction, smoke recycling loops are reduced, energy consumption of the oxygen-enriched combustion system is lowered, and system efficiency is increased.

The invention relates to an anti-corrosion powder coating for an automobile, comprising the following constituents in parts by weight, 100 parts of epoxy resin, 15-35 parts of phenolic epoxy resin, 5-13 parts of polyethylene resin, 10-30 parts of calcium carbonate filler, 3-7 parts o dicyandiamide, 1-8 parts of zinc powder, 1-3 parts of organosilicone levelling agent and 0.1-1 part of oxidation catalyst, wherein platinum catalysts have the function of catalytic combustion and can be used for adsorbing oxygen or organic groups. During the static spraying of the powder coating aforementioned, a lot of oxygen mixed in the coating is consumed under the action of the catalyst. Oxygen forms hydroxyl groups, carbonyl groups or ketone groups after being consumed, so that the formed film has a great steric hindrance effect on the migration of oxygen. An anti-corrosion purpose is achieved by isolating oxygen from migrating to the surface of a metal material. The powder coating disclosed by the invention has a great anti-corrosion effect.

The invention relates to an apparatus for environmental science research, in particular to a novel BOD (biochemical oxygen demand) determination system for continuous microorganism oxygen supply. The novel BOD determination system comprises a continuous oxygen supply unit, a measuring unit, a constant-temperature culture device, a magnetic stirring device and a software recording module for controlling the whole system. An operating principle of the novel BOD determination system includes that microorganisms are biodegraded in a reaction vessel under the normal pressure and at the constant temperature to consume oxygen to produce carbon dioxide, the carbon dioxide is absorbed by carbon dioxide absorbents on the upper portion of the reaction vessel, pressure in the reaction vessel is reduced so as to generate a pressure difference, a circuit in a U-shaped tube is connected to promote a constant-current power supply module to be turned on, a copper sulphate solution in an electrolysis vessel is subjected to electrolysis to produce oxygen, and a coulometer module starts to record electrolysis electric charge quantity; the oxygen is supplemented into the reaction vessel to enable the pressure difference of a U-shaped tube pressure meter to vanish, the circuit is disconnected, the constant-current power supply module is turned off, the electrolysis vessel stops electrolysis, and the coulometer module stops recording; the software recording module is controlled to process experimental data. The novel BOD determination system for continuous microorganism oxygen supply is capable of providing continuous oxygen supply and achieving precise temperature control.

The invention provides an oxygen-reducing fresh-keeping structure, a refrigerator, an oxygen-reducing fresh-keeping method and a storage medium. The oxygen-reducing fresh-keeping structure comprises an electrolysis device, a drawer, a first air inlet pipe and a first exhaust pipe, wherein the drawer is in communication with the electrolysis device, the electrolysis device comprises an electrolyticvessel, an electrolyte, an anode, a cathode and a power source, the electrolyte is contained in the electrolytic vessel for consuming oxygen, the anode and the cathode are immersed in the electrolyte, and the power source is arranged between the anode and the cathode; one end of the first air inlet pipe is arranged in the electrolyte, and the other end of the first air inlet pipe is in communication with the drawer; one end of the first exhaust pipe is connected with the electrolytic vessel and is arranged close to the cathode, the other end of the first exhaust pipe is in communication withthe drawer, and an air pump is arranged on the first air inlet pipe and the first exhaust pipe. According to the oxygen-reducing fresh-keeping structure, the electrolyte is utilized to remove oxygen in the drawer, so that the oxygen in the drawer is rare, so that the physiological and biochemical process and the microbial activity caused by putrid deterioration of food material are inhibited, useroperation is not needed, the energy consumption is small, the cost is low, the noise is small, and convenience is brought to people.

The invention discloses a cephalopod spawning and inhabiting device. The cephalopod spawning and inhabiting device can adapt to the characteristic that cephalopods like to spawn on attachments close to the seabed during spawning, and can effectively solve the problems that the hatching rate is reduced due to the fact that the area close to the seabed consumes oxygen due to rotten substances at the water bottom, the water flow is less, the oxygen content is low, and incubation of fertilized ova which are greatly attached together is not facilitated. The cephalopod spawning and inhabiting device comprises an inhabiting net cage, a partition plate is arranged in the middle of the inhabiting net cage, and the partition plate divides an inner cavity of the inhabiting net cage into a spawning and inhabiting cavity located below the partition plate and an incubation cavity located above the partition plate. A plurality of access channels are arranged on the side wall of the spawning inhabiting cavity; and a plurality of egg attaching devices are arranged on the inhabiting net cage, and each egg attaching device comprises a buoyancy block and an egg attaching rope located in the spawning and inhabiting cavity.

The invention provides a battery cathode catalyst. The battery cathode catalyst comprises porous cerium dioxide microspheres and silver powder, wherein the silver powder is dispersed in the cerium dioxide microspheres and on the surfaces of the cerium dioxide microspheres. In the battery cathode catalyst provided by the invention, the porous cerium dioxide microsphere is used as a stable silver carrier, the battery cathode catalyst has relatively large specific area, nanometer silver particles can be prevented from being agglomerated during the sintering and test process, so that the catalyst is maintained with relatively high catalytic activity; and moreover, cerium dioxide has favorable oxidization-reduction characteristic, oxygen can be consumed in an oxidization atmosphere and is provided in a reduction atmosphere, so that the oxygen is rapidly transferred to a three-phase interface in the cerium oxide, the oxygen migration rate is improved, and the energy efficiency of a battery is improved.

The invention discloses an oxygen-bearing coal-bed gas low-temperature concentration method and a device for implementing the method. The method comprises the following steps: conducting pressurization and purification on oxygen-bearing coal-bed gas; cooling the purified oxygen-bearing coal-bed gas; conducting gas-liquid separation on the cooled oxygen-bearing coal-bed gas; respectively throttling the gas and liquid obtained from gas-liquid separation to obtain a throttling liquid phase and a throttling gas phase; introducing the obtained throttling liquid phase and throttling gas phase into the purified oxygen-bearing coal-bed gas through heat-exchange cooling, so that the concentrated oxygen-bearing coal-bed gas is obtained when the throttling liquid phase is subjected to heat exchange. According to the method, the main cold energy is provided through oxygen-bearing coal-bed throttling and cooling, no or only a little of cold energy provided by an external refrigeration system is needed, and the energy consumption is low, so that the method is a simple, feasible and low-energy-consumption oxygen-bearing coal-bed gas treatment method; furthermore, through adoption of the device provided by the invention, low-temperature concentration of the oxygen-bearing coal-bed gas can be realized; the quantity of components in the device is small, and thus the adaptability is high.

The invention relates to the technical field of coal-fired flue gas treatment, particularly to a coal-fired flue gas treatment composition, a coal-fired flue gas treatment method, a coal-fired flue gas treatment apparatus, and applications of the composition, the method and the apparatus. The coal-fired flue gas treatment composition comprises a dicarbonic acid solution, a nitrogen copper solution and a sodium chloride solution, wherein the dicarbonic acid solution comprises sodium bicarbonate, sodium carbonate and a solvent, the nitrogen copper solution comprises a mother liquor and a seed liquid, the mother liquor is prepared from heat treated copper and a urea solution, and the seed liquid is a urea solution. According to the present invention, the coal-fired flue gas is treated by using the nitrogen copper solution as the catalyst to convert the traditional oxygen-consuming flue gas treatment mode into the oxygen release mode, such that the oxygen content in the flue gas is substantially recovered to the level of the air so as to achieve the harmless treatment of the flue gas; and with the coal-fired flue gas treatment composition, the NOx content in the coal-fired flue gas can be reduced to within 10 mg / m<3> so as to improve the degradation level of nitrogen oxides to a completely-new level.

The invention relates to the field of rescue equipment, and discloses portable self-rescue equipment. The portable self-rescue equipment comprises a sleeve, a cavity is formed in the sleeve, a center rod is slidably arranged in the cavity, ejection assemblies are symmetrically arranged on the two sides of the lower end in the center rod, and the ejection assemblies can position and lock the sleeve and the center rod. Locking assemblies are symmetrically arranged on the two sides of the upper end in the center rod. According to the portable self-rescue equipment, the center rod and a baffle can be unlocked through a method of cutting a pull rope, then the center rod is ejected upwards to enter a snow layer or sand, surrounding obstacles are detected through the baffle, a fan is driven to rotate through the pull rope, and trapped people can be helped to conduct air interaction; and meanwhile, the sleeve is small in size and can be carried about, during use, a trapped person does not need to operate too much, oxygen consumption caused by activities is avoided, even a person is trapped in fluid and can directly breathe through a hose, and the survival rate is increased.

The invention discloses a multi-organ chip, which comprises a chip substrate and a chip cover plate attached to the chip substrate, at least two cell culture chambers are formed on the chip substrate, and the at least two cell culture chambers are respectively used for culturing different types of cells to simulate different organs; at least one cell culture chamber is provided with a microalgae culture chamber, and the microalgae culture chamber is formed on the chip substrate and is used for culturing microalgae to generate or consume oxygen; the cell culture chambers are communicated with the corresponding microalgae culture chambers, and gas exchange is allowed; the oxygen concentration in each cell culture chamber is independently controlled by adjusting the intensity of photosynthesis or respiration of microalgae in different microalgae culture chambers. According to the multi-organ chip, oxygen control of different organ areas on the chip is achieved, and the problem that an existing method is not suitable for oxygen content control on the multi-organ chip is solved.

The invention provides a chemical-looping continuous oxygen production system based on solar photothermal, and belongs to the technical field of chemical-looping oxygen production of solar heat storage and heat accumulation. The system comprises a Fresnel lens field, a heat storage device, a side steel plate, an end steel plate, a columnar glass body, a lifting gate, a premixer, a fan, an air preheater, a reheater, a condenser, a superheater, an evaporator and an oxygen production device. The chemical-looping oxygen generation system is coupled with the solar photo-thermal heat storage system,hot air absorbs solar photo-thermal and then generates steam and performs oxygen absorption and desorption reaction, and then high-temperature oxygen-poor air generated by the reaction preheats coldair. Superheated steam and oxygen mixed gas obtained after the oxygen release reaction is subjected to condensation treatment after air is subjected to secondary heating to obtain pure oxygen, and preheated air enters a heat storage device to be subjected to convective heat exchange to form high-temperature air to continue to participate in the circulation. The whole system realizes gradient utilization of energy, achieves the purpose of low-energy-consumption oxygen production, and conforms to the modern theme of energy conservation and emission reduction.

The invention relates to an adjustable moxa fumigating device for clinical nursing of the endocrinology department, The device effectively solves the problems that when an existing moxa fumigating device is used for fumigating, a moxa cone needs to be ignited manually and needs to be replaced and fixed manually, the steps are tedious, heat in a fumigating chamber is wasted, heat in a fumigating chamber is wasted, and the best fumigation effect cannot be achieved; and oxygen needs to be consumed when the moxa cone is combusted in a closed space, if the moxa cone cannot obtain enough oxygen during combustion, heat in the fumigation chamber is insufficient, or toxic substances are generated to harm human health due to insufficient combustion of the moxa cone. The moxa fumigating device is provided with a bed body and the fumigating chamber and can conduct reciprocating fumigating action, an automatic feeding device, an automatic clamping device and an adjustable air inlet device are arranged in the fumigating chamber, and the position and angle of an air inlet of the air inlet device are adjusted along with gravity change of moxa cone combustion.

The invention belongs to the technical field of converter smelting, and particularly relates to a method for reducing converter smelting cost, which comprises the following steps: adding a steel bar cropping bin on a furnace front platform, adding a vibrating screen at the lower end of the steel bar cropping bin, and adding steel bar cropping into the steel bar cropping bin by using a waste steel hopper; picking the cold hopper by using a forklift, putting the cold hopper below a vibrating screen of the steel bar cutting head bin, and starting the vibrating screen to vibrate the steel bar cutting head into the cold hopper; the steel bar cutting head is conveyed to a cold material adding opening of an argon blowing station through a forklift; after molten steel enters an argon station for temperature measurement and sampling, if the steel ladle clearance is larger than 500 mm and the temperature is larger than 1560 DEG C, the number of added steel bar cutting heads is determined according to the temperature condition. The added steel bar cutting head is directly changed into molten steel after being completely melted, materials such as oxygen, lime and dolomite do not need to be consumed, the yield is increased, the temperature of the molten steel is reduced, the refining temperature of the molten steel is stabilized within the range of 1525-1540 DEG C, temperature waste is avoided, and meanwhile stable operation of a refining furnace is facilitated.

The invention discloses an anti-fogging high-end protective clothing, which comprises a protective clothing body and an oxygen bottle, wherein a gas storage cavity is formed in the oxygen bottle, an upper sealing cover is arranged at the top part of the oxygen bottle, an operation cavity is formed in the upper sealing cover, a degassing device is arranged in the operation cavity, and the degassingdevice communicates with the gas storage cavity through a first gas outlet pipe. The anti-fogging high-end protective clothing is simple in structure and convenient to use, and the oxygen release rate of the oxygen bottle can be controlled in real time according to the oxygen consumption rate of a user, so as to guarantee that the pressure in the protective clothing is not changed. Meanwhile, theanti-fogging high-end protective clothing can prevent the situation that carbon dioxide is accumulated in the protective clothing, the temperature in the protective clothing rises and consequently physical output of a user is increased can be prevented; in the meantime, water vapor can be prevented from condensing on a mask and blurring the sight of the user; and the use amount of oxygen in the oxygen bottle can be increased.

The invention provides a hydrogen concentration control system for a flow battery. The system comprises an electrolyte storage tank which is used for storing electrolyte and receiving gas with lower hydrogen concentration from a fuel cell so that the mixed hydrogen in the electrolyte is mixed with the gas with lower hydrogen concentration to generate gas with higher hydrogen concentration, and thegas with higher hydrogen concentration is discharged from the electrolyte storage tank and transmitted to a fuel cell; and a fuel cell is used for receiving the gas with higher hydrogen concentrationand reacting with oxygen in the air to consume the oxygen and the hydrogen in the system, so that the hydrogen concentration is reduced, and the generated gas with lower hydrogen concentration is sent to the electrolyte storage tank. The system is advantaged in that a hydrogen safety problem of the flow battery system can be solved, meanwhile, emission is reduced, the system is safer and more environmentally friendly, inert gas is not consumed, periodic supplementation is not needed, operation and maintenance cost is reduced, meanwhile, the requirement for chemical system design can be lowered, the requirement for the site and the equipment explosion-proof grade is lowered, and the application prospect is wide; total cost of the system is reduced.

The invention relates to the technical field of phosphorus chemical industry, in particular to a yellow phosphorus gasification combustion furnace. The yellow phosphorus gasification combustion furnace comprises a combustion bin, wherein a feeding pipe is fixedly connected to the left side of the combustion bin; an air inlet pipe is fixedly connected to a position, close to a lower end, of the right side of the combustion bin; an air inlet mechanism is arranged on the right side of the combustion bin; the air inlet mechanism comprises a first air bin, a second air bin, a moving rod, a moving block, an exhaust pipe, a connecting pipe, a first piston, a vertical rod, a transverse rod, a return spring, a poke rod, a first one-way valve piston 2 and a second one-way valve piston; and the first air bin is fixedly connected to a position, close to an upper end, of the right side of the combustion bin. According to the invention, through a large amount of heat generated during combustion of yellow phosphorus, gas is expanded by multiple times after oxygen is consumed, and gas entering the combustion bin is exhausted by utilizing the gas, so that enough oxygen can enter the combustion bin, the yellow phosphorus is fully combusted, the combustion efficiency of the yellow phosphorus is improved, and heat energy generated during the combustion is utilized.

The invention discloses a printed paper collecting vehicle. The printed paper collecting vehicle is used for solving the problem that in the prior art, printed paper is prone to being damaged in the transferring process and can also be used as a paper storage container. The printed paper collecting vehicle structurally comprises a vehicle body, a humidity control pipe, a combustion cylinder and a paper storage box, wherein the paper storage box is used for storing paper and placed in the vehicle body to be transported or temporarily stored; the humidity control pipe is installed in the vehicle body; the humidity of the internal space of the vehicle body is adjusted through the humidity control pipe, and thus the paper can be stored conveniently; the combustion cylinder is detachably arranged in the vehicle body; the paper is dried through heat generated by combustion, and combination of printing ink and the paper is promoted; and meanwhile, due to the fact that oxygen is consumed in the combustion process, a low-oxygen atmosphere can be formed in the vehicle body, and the paper can be stored more conveniently. The printed paper collecting vehicle is reasonable in structure, the temperature and humidity of the internal storage space of the printed paper collecting vehicle can be controlled, and thus the printed paper collecting vehicle can be used as a transferring tool and can also be used as the paper storage container, and production organization is facilitated.

The invention provides a smoke dust content model value establishing method and system of a gasoline particle filter. The smoke dust content model value establishing method of the gasoline particle filter comprises the following steps that measuring is carried out on a rack or a rotating hub of an engine to obtain an original smoke dust emission value; the smoke dust combustion rate is obtained through measurement of an engine sensor, and the smoke dust combustion rate is multiplied by the combustion time to obtain the combustion amount; the original smoke dust emission value is subtracted from the combustion amount and integrated to obtain a smoke dust content model value; the amount of oxygen consumed by smoke combustion is measured, and according to the amount of the oxygen consumed bysmoke combustion and combining with a physical model of the oxygen consumed by combustion, a smoke dust content measured value is obtained; and the smoke dust content measured value is compared with the smoke dust content model value, and the smoke dust content model value is corrected according to the smoke dust content measured value.

The invention discloses an online analyzer for air quality multi-component gas particles. The online analyzer comprises an online analyzer body and a sampling pipe arranged at the gas input end of theonline analyzer body, the top of the sampling pipe is fixedly communicated with a gas inlet pipe; according to the online analyzer for air quality multi-component gas particles, a filtering reactiondevice is arranged at the input end of the sampling pipe; according to the filtering reaction device, on one hand, the content of carbon dioxide contained in air is detected before reaction; meanwhile, the copper oxide and the carbon monoxide are fully reacted under the heating condition; generating carbon dioxide and copper, finally, the carbon dioxide is detected again through the interior of the online analyzer body, so that the content of the carbon monoxide is obtained, and meanwhile, the problems that the detection precision is influenced and certain potential safety hazards exist due tothe fact that the carbon monoxide contained in the gas entering the online analyzer body consumes oxygen at a high temperature are effectively prevented.

The invention provides a modified cuprous ferrite catalyst rich in oxygen vacancies as well as a preparation method and application of the modified cuprous ferrite catalyst, and belongs to the technical field of sewage treatment. According to the method, the hydrothermal deacetylation degree of chitosan in an alkaline hydrothermal environment is increased, chitosan can be hydrolyzed into chitosan oligosaccharide and glucosamine, and meanwhile, the pH value of the solution is increased; the glucosamine is unstable in nature and easily consumes oxygen to generate Maillard non-enzymatic browning reaction to generate reducing ketones, unsaturated aldehydes and aromatic ring substances (such as pyrazine heterocycles, pyrans, furans and pyrroles), so that an anoxic reduction environment is formed, and the environment is beneficial for cuprous ferrite CuFeO2 to form a large number of oxygen vacancies; and meanwhile, the reducing ketones and unsaturated aldehydes generated by hydrolysis of chitosan are used as reducing agents for synthesis of cuprous ferrite CuFeO2, and chitosan is derived into nitrogen-doped carbon nanoparticles, so that the modified cuprous ferrite catalyst rich in oxygen vacancies is obtained.