42results about How to "Increase oxygen concentration" patented technology

The invention discloses a wastewater ozone catalytic oxidation treatment process and device, and relates to the technical field of wastewater treatment.According to the wastewater ozone catalytic oxidation treatment process and device, oxygen-enriched gas exhausted by a tail gas destructor is purified and then reused for an ozone generator, the scale of an oxygen preparation system such as an air compressor and an oxygen generator is reduced, and the production efficiency is improved. Therefore, the equipment investment and the operation cost are reduced, and the pollution of harmful gases such as volatile organic compounds (VOCs) in the tail gas to the environment is effectively avoided; meanwhile, carbon dioxide is removed in the tail gas treatment process, and carbon emission is further reduced; besides, through the chemical reaction of treating carbon dioxide by sodium peroxide, not only is harmful gas successfully removed, but also oxygen is additionally generated and is used for supplementing the oxygen concentration which is reduced due to ozone reaction consumption in the mixed gas; while the tail gas recycling efficiency is improved, the dependence on external oxygen is remarkably reduced, and the energy consumption of oxygen production equipment and ozone generation is reduced.

The invention provides a novel compressed air and hydrogen energy storage coupling system and a working method thereof. The system comprises an air and hydrogen coupled energy storage circulating system, an air and hydrogen coupled energy release circulating system and a waste heat multi-stage recycling heat storage circulating system. The energy storage cycle of the coupling system converts electric energy into hydrogen energy and pressure energy of air for storage, the energy release cycle converts the pressure energy and the hydrogen energy of the air into electric energy for release, the heat storage cycle system recycles and utilizes heat in the system operation process in a multi-stage mode through heat conduction oil and cooling water, and tight coupling of compressed air energy storage and hydrogen energy storage is achieved. According to the coupling system, cooling water and heat conduction oil are used as heat exchange media, heat energy generated in the energy storage process of the system is recycled in a multi-stage mode, the stored heat energy is used for heating air and hydrogen in the energy release process, and therefore the power capability of high-pressure air and hydrogen is improved. The system mixes the exhaust gas of the air expansion machine with oxygen, and the mixed gas is depressurized by the pressure stabilizing valve and then supplied to the hydrogen fuel cell, so that the oxygen concentration in the mixed gas is increased, and the power generation performance of the hydrogen fuel cell can be effectively improved.

The invention relates to the technical field of sewage treatment, and discloses a subsurface wetland system and a method for relieving wetland blockage. According to the subsurface wetland system provided by the invention, the wetland unit blockage monitoring system is additionally arranged, and the water inlet and outlet operation conditions of the blockage unit are automatically controlled, so that when the blockage unit operates at a low position, the degradation of organic matters among fillers is accelerated, the endogenous respiration of microorganisms is promoted to consume extracellular polymers or intracellular components, and blockages are dispersed when the water level rises; oxygen exchange and circulation of nutrient substances in the wetland are facilitated, a better environment is provided for growth of microorganisms, the activity of the microorganisms is conveniently improved, the purification capacity of the wetland is correspondingly enhanced, and pollutants in water can be better removed; blockages are dispersed by water flow, so that the wetland can be prevented from being degraded due to blockage, and the ecological health and sustainability of the wetland are kept; and as the wetland blockage is relieved, the service life of the wetland filler is prolonged, and the requirement of manual cleaning can be reduced to a certain extent, so that the maintenance cost is reduced.

The invention discloses a hydrogen fuel cell cathode gas supply system which comprises a hydrogen fuel stack, and a gas separator, a gas-liquid separator and a circulating fan are sequentially connected between a cathode inlet of the hydrogen fuel stack and a cathode outlet of the hydrogen fuel stack to form a residual oxygen circulation loop; a layer of oxygen separation membrane is arranged in the gas separator to divide the gas separator into a compressed gas cavity and an oxygen gas cavity; the gas-liquid separator and a cathode inlet of the fuel stack are respectively connected to two sides of the oxygen gas cavity; an exhaust electromagnetic valve is arranged on one side of the compressed gas cavity, and the other side of the compressed gas cavity is sequentially connected with a gas compressor and an air filter to form a fresh air inlet path; the method has the advantages that the membrane electrode can be kept moist, the reaction time can be prolonged, and the oxygen concentration and the utilization rate can be improved.

The invention relates to the field of fuel cells, in particular to a bipolar plate-gas diffusion layer structural body and a fuel cell. The structural body comprises a bipolar plate and a gas diffusion layer; the bipolar plate is composed of a first polar plate, a third polar plate and a second polar plate which are stacked in sequence, the first polar plate is a flat plate, the second polar plate is a flat plate with a lug boss, and the third polar plate is a polar plate with a runner; the first polar plate is connected with the anode gas diffusion layer; the second polar plate is connected with the cathode gas diffusion layer; grooves are formed in one side, close to the first polar plate, of the anode gas diffusion layer and one side, close to the second polar plate, of the cathode gas diffusion layer; the convex part of the second polar plate is embedded into the groove of the cathode gas diffusion layer; and a cavity formed by the second polar plate and the cathode gas diffusion layer is an air flow channel. The oxygen content under the ridge of the fuel cell can be improved, the drainage capacity under the ridge is enhanced, the power density of the fuel cell is improved, and the specific power of a fuel cell stack can be greatly improved.

The invention discloses an agricultural irrigation water circulation system, and relates to the technical field of water treatment.The agricultural irrigation water circulation system comprises a water pumping device, a first-layer filtering device, a dirt scraping device, a purifying device and a water collecting tank, the water pumping device pumps sewage into the first-layer filtering device, and the first-layer filtering device is composed of four sets of filtering plates and a water passing pipe; the four groups of filter plates are respectively mounted in four different directions of the water pipe, a partition plate is mounted between every two groups of filter plates, impurities in sewage are filtered out by the filter plates, the dirt scraping device scrapes the impurities on the filter plates, the water pipe is connected with the upper and lower filter plates to flush out the impurities in the filter holes, and the sewage enters the purification device from the lower filter plate. The purification device is composed of two layers of ultraviolet lamp panels, sewage is purified through ultraviolet rays, the purified water flows into the water collecting tank, the work of replacing a filter plate is omitted, harmful substances in water are purified through the ultraviolet rays, and the harmful substances in water are prevented from harming crops when farmland is recharged.

The invention belongs to the field of preservatives, and particularly relates to a starch-based sodium percarbonate green oxygen release agent as well as a preparation method and application thereof. According to the technical scheme, the sodium percarbonate-starch composite crystal comprises a V-shaped crystal structure cavity formed by hydrophilic modified starch and fatty acid, and the V-shaped crystal structure cavity and sodium percarbonate form a stable composite crystal structure. The invention provides a novel green composite fresh-keeping oxygen slow-release agent, namely a sodium percarbonate-starch composite crystal, which can be used in multiple fields of food processing, medical treatment, environmental protection and the like, and is particularly suitable for application environments needing continuous and controllable high-concentration oxygen release.

The invention relates to the technical field of plasma electric flame stoves, in particular to a system for supplying nitrogen through centralized air separation for an electric flame stove and a working method. The system comprises an air compression and pretreatment unit, a pressure swing adsorption separation unit, a nitrogen buffer pressure stabilization unit, a nitrogen distribution conveying pipe network, a user side regulation and control unit and at least one electric flame stove which are sequentially connected in the gas flow direction. According to the invention, through centralized nitrogen generation and pipeline distribution, the problem of large-flow nitrogen supply of dispersed users is solved, and the emission of nitrogen oxides is greatly reduced due to the use of oxygen-free nitrogen by the electric flame stove. According to the system, indoor oxygen supplementation of oxygen-enriched gas and domestic hot water recovery of compressed waste heat are achieved at the same time, and the comprehensive utilization efficiency of resources is improved; by adopting the carbon steel pipe net, the construction cost is reduced, and nitrogen with different purities can be flexibly produced to meet multiple requirements; and real-time matching of nitrogen supply and stove power is realized through intelligent flow control of a user side, and stable and efficient operation is guaranteed.

The utility model relates to the technical field of ventilation devices, in particular to an automatic ventilation device for a deep well, which comprises a well body, the outer wall of one side of the top of the well body is fixedly connected with a support, the outer wall of the top end of the support is provided with a fan, the inner wall of the support is provided with a controller, and the output end of the fan is connected with a ventilation hose in an inserted mode. An annular pipe is slidably connected to the inner wall of the bottom of the well body, a connecting hole is formed in the outer wall of one side of the top end of the annular pipe, the ventilation hose is inserted into the inner wall of the connecting hole, an oxygen concentration sensor is installed on the outer wall of one side of the top end of the annular pipe, and limiting plates are fixedly connected to the outer walls of the two sides of the top end of the annular pipe. The deep well ventilation device can detect the oxygen concentration at the bottom of the well body, so that the fan is automatically controlled to conduct ventilation treatment according to the detection structure, the ventilation structure is annularly arranged, air inlet is more uniform, the height of the air inlet structure can be adjusted according to actual requirements, and the use efficiency of the deep well ventilation device is improved.

The invention discloses a two-stage gas producer and a coal gasification method, the gas producer comprises: a gas producer provided with a feed inlet, an upper-stage gas outlet, a lower-stage gas outlet, a second gasifying agent inlet, and a first gasifying agent inlet; the fire grate is arranged in the gas producer and is positioned below the second gasifying agent inlet; and a phenol water vapor outlet of the phenol water vapor stripping tower, which is communicated with the first gasifying agent inlet and the second gasifying agent inlet, is formed in the phenol water vapor stripping tower. The heat of the lower section coal gas is respectively used for heating phenol water in the reboiler and superheated steam in the superheater, the sensible heat of the lower section coal gas is recovered, the temperature of the lower section coal gas is reduced, the heat efficiency is high, meanwhile, the phenol water obtained after purification treatment of the upper section coal gas is recycled, and the resource utilization rate is improved.

The application provides a method and device for treating wastewater by combining a suspended filler floating bed and a soil infiltration system, and the method comprises the following steps: S1, breeding wastewater is treated by the suspended filler floating bed after passing through a hydrolysis tank, and effluent is treated in a sedimentation tank, and wastewater of the suspended filler floating bed is returned to the suspended filler floating bed for secondary treatment; S2, wastewater of the sedimentation tank is returned to the hydrolysis tank; and S3, effluent of the sedimentation tank is introduced into a soil underground infiltration system. The system provided by the application is beneficial to further strengthening the effects of denitrification, phosphorus removal and removal of suspended solids, and solves the problems of low dissolved oxygen content of influent and wastewater in the system, which is not conducive to the growth of nitrifying bacteria, and low effective volume utilization rate. In the use process, the filler does not need to be replaced, and mechanical aeration equipment does not need to be added, and the system has the advantages of low investment cost, no need to add chemical agents for treatment, obvious effect, not easy to breed mosquitoes, simple operation and management, and beautification of the environment, and has remarkable ecological and economic benefits for promoting deep purification of breeding wastewater.

This utility model discloses a micro hyperbaric oxygen chamber and its highly integrated micro hyperbaric oxygen chamber main unit, relating to the field of micro hyperbaric oxygen chamber technology. The highly integrated micro hyperbaric oxygen chamber main unit includes: a shell; an oxygen generation and pressurization device, which includes an air compressor for pressurizing air to a set pressure and a molecular sieve for oxygen generation, the air compressor being connected to the chamber body via an air supply pipe; a pressure regulating and filtration device, which is used to regulate the concentration and pressure of oxygen, the molecular sieve being connected to the pressure regulating and filtration device, the pressure regulating and filtration device being connected to the chamber body via an oxygen supply pipe; a water treatment device, which includes a collection tank and a water processor located in the collection tank, the shell having a guide pipe for guiding the condensate generated by the chamber's air conditioning system and the pressure regulating and filtration device into the collection tank, the water processor being used to vaporize the condensate in the collection tank; and a control device. This device can effectively treat the chamber's air conditioning water and the main unit's condensate, integrating oxygen generation, pressurization, and condensate treatment functions into one unit.

This utility model relates to an oxygen-enriched burner structure, including a burner body and a nozzle connected to the jet end of the burner body. An oxygen-enriching component is connected to the nozzle, comprising a rotating sleeve rotatably connected to the nozzle and an oxygen-enriching drive connected to the rotating sleeve. The oxygen-enriching drive drives the rotating sleeve to pump external oxygen into the nozzle. The technical solution of this application offers the following advantages: the oxygen-enriching component is connected to the nozzle, and the oxygen-enriching drive drives the rotating sleeve to rotate, precisely pumping external oxygen into the nozzle. This design significantly increases the oxygen concentration in the combustion zone, ensuring thorough mixing of fuel and oxygen, resulting in a more intense and rapid combustion reaction. The oxygen-enriching drive can flexibly adjust the rotation speed of the rotating sleeve according to actual combustion needs, thereby precisely controlling the amount of oxygen pumped into the nozzle. Under different operating conditions such as changes in combustion load and fuel type, it ensures that the burner receives the appropriate oxygen supply. This oxygen supply method guarantees the stability and efficiency of the combustion process.

The utility model relates to the technical field of garbage collaborative treatment equipment, concretely is a kind of green garbage and kitchen garbage fermentation mixing mechanism, including two support frames, the support frame upper end fixed connection of rear side is equipped with kitchen garbage buffer group, the support frame upper end fixed connection of front side is equipped with green garbage buffer group, the right side of kitchen garbage buffer group and the right side of green garbage buffer group are equipped with driving motor, the left side of kitchen garbage buffer group and green garbage buffer group left side are commonly equipped with double helix mixing group, the constant temperature fermentation mechanism is equipped in the lower side of double helix mixing group, this green garbage and kitchen garbage fermentation mixing mechanism, through kitchen garbage buffer group and green garbage buffer group and in the cooperation of two driving motors and control box, so that device can accurately control feed quantity, and through the cooperation of driving part, belt and double helix mixing group, green garbage and kitchen garbage can be fully stirred, accurate mixing ratio is ensured.

The utility model provides an active oxygen generating device with a long service life, which comprises a lower shell, an upper shell, a lower shell and an upper shell, and the impeller cover is arranged on the inner side face of the lower shell and the inner side face of the upper shell, an impeller is fixedly installed at the bottom of the impeller cover, and a cleaning brush is arranged on one side of the impeller. According to the active oxygen generating device with the long service life, the impeller, the cleaning brush and other structures are matched with one another, when the active oxygen generating device is used, the impeller is driven by water flow to rotate, the cleaning brush fixed to the impeller is driven to clean an area, prone to scaling, between the two conducting strips, the scaling risk of the main reaction chamber is reduced, and the service life of the active oxygen generating device is prolonged. Meanwhile, ion exchange is better achieved, the reaction efficiency is improved, the active oxygen concentration is increased, the service life of the product is greatly prolonged, and large-scale application is facilitated.

This utility model discloses a rice seed storage device, including a storage tank and a cover plate disposed above the opening at the top of the storage tank. A ring is fixedly connected to the bottom of the cover plate, and the lower end of the ring is inserted into the opening, abutting against the inner wall of the opening. The surface area of ​​the cover plate is larger than the surface area of ​​the opening. Multiple circumferentially distributed vents are provided on the cover plate. Multiple circumferentially distributed driven gears are rotatably inserted into the bottom of the cover plate via a rotating shaft. In this utility model, a gas detector and a temperature and humidity meter are used to periodically monitor the data inside the storage tank. When the data exceeds the standard, a knob can be turned to drive the drive gear, which in turn drives multiple driven gears to rotate. The driven gears then drive corresponding baffles to rotate, causing the baffles to move away from the vents. This allows carbon dioxide and heat to be removed from the inside of the storage tank. Furthermore, a stainless steel filter screen prevents adult insects from entering the storage tank.

The invention relates to the technical field of soilless culture, and particularly discloses a plant hydroponic device which comprises a box body with an opening in the top and a hydroponic box with an opening in the top, the hydroponic box is fixedly connected with the inner wall of the box body, and an oxygen supply opening is formed in the side wall of the box body; the cylindrical pipe is arranged in the water culture box, the oxygen supply mechanism is arranged in the cylindrical pipe, the side holes are formed in the water culture box, and the driving assembly is used for driving the cylindrical pipe to rotate. The cylindrical pipe is rotationally connected with the side hole; the oxygen supply mechanism comprises an oxygen supply pipe, an annular hollow pipe, a guide pipe, a movable pipe, a plurality of oxygen supply holes formed in the circumferential direction of the oxygen supply pipe, an oxygen through hole formed in the inner wall of the annular hollow pipe, an auxiliary hole formed in the cylindrical pipe and a power assembly used for driving the movable pipe to reciprocate in the length direction of the guide pipe. The problem that oxygen supply to roots of hydroponic plants is insufficient due to the fact that an existing hydroponic device cannot provide oxygen for the hydroponic plants in time is solved.

This utility model provides a self-regenerative oxygen-enriched burner, belonging to the technical field of combustion equipment. The self-regenerative oxygen-enriched burner includes a combustion chamber; side plates, which are bolted to the left and right ends of the combustion chamber; L-shaped tubes, which are fixedly connected to the left and right ends of the side plates; a heat storage body, which is fixedly connected inside the two L-shaped tubes; and a support, which is fixedly connected to the lower end of the combustion chamber. A reversing valve is connected to the support, and a connecting pipe connects the reversing valve to the L-shaped tubes. In this design, the heat storage body receives and stores heat transferred from high-temperature flue gas during combustion, and then uses this heat to subsequently heat the cold air or gas entering the combustion chamber, achieving efficient heat recovery and reuse, reducing energy waste, and improving combustion energy utilization efficiency.

The invention discloses a miniature unmanned ship and a water quality detection and oxygenation method thereof, and the miniature unmanned ship is used for water quality detection. Comprising a ship body, a jet device, an oxygenation device and a water quality detection device, the water quality detection device is used for detecting the oxygen concentration in water after arriving at a set point, and comparing the oxygen concentration with the set normal oxygen concentration for analysis; the jet device is connected with the oxygenation device, the oxygenation device is used for mixing and micronizing air, and the treated air is jetted into water through the jet device to form a large number of bubbles so as to increase the oxygen concentration in the water; according to the unmanned ship, air can be efficiently mixed and micronized, the treated air is jetted into water through the jet device, and a large number of fine bubbles are formed; the bubbles can be quickly dissolved in water, so that the oxygen concentration in the water is improved, and the water quality is effectively improved; and efficient and accurate detection and oxygenation treatment of water quality are realized.

The utility model discloses an aerator for fish and shrimp culture, which comprises an upper plate, the top of the upper plate is fixedly connected with an oxygen extraction device, the top of the oxygen extraction device is fixedly connected with an air suction pipe, one side of the oxygen extraction device is fixedly connected with a bendable hard pipe, the bottom of the upper plate is fixedly connected with a connecting long block, and the connecting long block is fixedly connected with an air suction pipe. The bottom of the connecting long block is fixedly connected with a floating plate, and the top of the floating plate is fixedly connected with a side plate. The aerator is more convenient to use, can float on the water surface to work, and can perform aeration at the central part of a culture area, so that the oxygen content of the culture area is balanced, the oxygen concentration of the central part of the culture area is improved, and the survival rate of fishes and shrimps in the central area is improved; workers do not need to carry an aerator to the center of a breeding area for oxygenation work, the workload of the workers is reduced, the working efficiency of the workers is improved, and long-term use of the aerator is facilitated.

The invention relates to the technical field of oxygen enrichment treatment, and discloses an oxygen cabin which comprises an outer frame, a cabin body, a cabin door, an oxygen generation pressurizing device, an electromagnetic lock, an adjustable seat, a separation mechanism, an air purification mechanism, an oxygen concentration sensor and a pressure intensity sensor. The outer side of the cabin body is provided with an oxygen generation pressurizing device communicated with the cabin body, a plurality of adjustable seats are arranged in the cabin body, a plurality of separation mechanisms are arranged at the top end in the cabin body, and an air purification mechanism is arranged in the cabin body. According to the invention, air in the closed cabin body is convenient to purify; the interior of the cabin body can be divided into a plurality of areas, so that privacy can be protected when different people use the cabin at the same time.

The utility model discloses a dispersion oxygen generator and system, which comprises a power supply unit, a control unit connected with the power supply unit, an oxygen generation unit and a compressor, the compressor extracts gas through a gas taking unit and provides pressure gas; and the oxygen generation unit is used for receiving the pressure gas to prepare oxygen and dispersing the oxygen into the aerobic space. According to the technical scheme, gas is completely or partially extracted from the aerobic space at the same time, so that circulating gas exchange in the aerobic space is ensured, harmful gas such as carbon dioxide is prevented from being accumulated, in addition, the oxygen concentration in the aerobic space is prevented from being continuously accumulated and increased, and the oxygen concentration in the aerobic space is within a safe interval.

The invention discloses an in-situ layered repair device and method for groundwater in a chlorinated hydrocarbon contaminated site. The device comprises a repair well, an injection assembly and an adjusting motor. A plurality of injection holes of different heights are arranged on the side wall of the repair well. The injection assembly is used to inject an external repair agent into the groundwater in the chlorinated hydrocarbon contaminated site at different depths through the injection holes of different heights. The adjusting motor is used to drive the injection assembly to move up and down inside the repair well. The repair device of the invention has a reasonable structural design. By arranging the injection assembly that can move up and down inside the repair well, it is convenient to inject the repair agent into the groundwater in the chlorinated hydrocarbon contaminated site in layers, which not only improves the diffusion efficiency of the repair agent in the groundwater in the contaminated site, but also can adjust the injection amount of the repair agent according to the contamination degree of the groundwater in the contaminated site, thereby improving the scientific nature of the repair of the groundwater in the chlorinated hydrocarbon contaminated site and being suitable for popularization and use.

The utility model provides a composite current collector, a pole piece, a new energy battery and an electric device. A membrane material of the composite current collector comprises a macromolecule base membrane layer, an active metal layer, a first conductive metal layer, a second conductive metal layer and an anti-oxidation protection layer, the molecules of the high-molecular base film layer only contain carbon atoms and hydrogen atoms, and the molecules of the active metal layer contain metal atoms; the active metal layer has a preset oxygen concentration and is used for oxidizing metal atoms of the active metal layer so as to react with atoms of the macromolecular base film layer; the active metal layer is suitable for adding carbon atoms and is used for increasing the carbon content adjacent to the first conductive metal layer; in the direction of the first conductive metal layer, the metal atom concentration of the active metal layer is gradually reduced in a gradient manner; the prepared active metal layer correspondingly improves the binding force of the macromolecule base film layer and the first conductive metal layer, so that the conductive metal layer is prevented from being torn off and delaminated; moreover, the arrangement in the active metal layer can be directly formed, and no additional process is needed.

The utility model provides an ozone sterilization device for rural drinking water, which relates to the field of drinking water sterilization devices, and comprises a first treatment tank and a second treatment tank, the upper side of the first treatment tank is provided with a water inlet, the right side of the first treatment tank is connected with a stirring component, and the upper side of the first treatment tank is provided with an air pump; an ozone generator is installed on the left side of the first treatment tank, the exhaust end of the ozone generator is connected with an aeration pipe, the aeration pipe is inserted into the first treatment tank, the second treatment tank is connected to the lower side of the first treatment tank, and the upper side of the second treatment tank is connected with the first treatment tank through a water outlet pipe; an ultraviolet germicidal lamp is arranged in the second treatment tank, and meanwhile, a water outlet and a control box are arranged on the lower side of the second treatment tank. The drinking water ozone sterilization device solves the problems that an existing drinking water ozone sterilization device is inconvenient to be used for sterilization operation of continuously flowing drinking water, and meanwhile oxygen and ozone are wasted.

The utility model discloses an oxygen-enriched air supply device in an automobile, which comprises an oxygen-enriched membrane component, the air outlet end of the oxygen-enriched membrane component is connected with a negative pressure pump, the air outlet end of the negative pressure pump is connected with an exhaust mechanism, one side of the oxygen-enriched membrane component is provided with a monitoring control mechanism, and the oxygen-enriched membrane component comprises an air outlet seat. A fan is connected to the end of the air outlet seat, an air outlet is formed in the other end of the air outlet seat, a plurality of vertical adjusting air plates are rotatably connected to the interior of the air outlet seat, and first rotating shafts are fixedly connected to one ends of the vertical adjusting air plates. According to the oxygen-enriched air supply device in the automobile, oxygen-enriched air is generated through the oxygen-enriched membrane assembly, the first motor drives the vertical adjusting air plate to rotate for vertical adjustment, the second motor drives the transverse adjusting air plate to rotate for transverse adjustment, the oxygen-enriched air is blown to a driver, the oxygen concentration in the automobile is effectively improved, and driving fatigue is relieved.

The utility model belongs to the technical field of cell culture, and relates to a grating type cell culture bottle with a breathable top. The grating type top-breathable cell culture bottle comprises a bottom wall, a side wall formed by extending upwards from the bottom wall, and a top wall for sealing the top of the side wall, the top wall comprises a plurality of ventilation parts arranged at intervals, the two ends of each ventilation part are connected with the two opposite side walls, each ventilation part comprises a plurality of ventilation holes formed in the extending direction of the ventilation parts at intervals, and hydrophobic filter membranes are arranged on the ventilation holes in an attached mode. The ventilation part connected with the two side walls is arranged on the top wall, the length of the ventilation part is increased, the ventilation amount is increased, and therefore it is guaranteed that the concentration of gas in the container from top to bottom is uniform. And the air holes in the top wall are arranged in a grating manner, so that the stability of the structure is enhanced. The hydrophobic filter membrane on each air hole effectively prevents liquid and pollutants from invading, and meanwhile, necessary gas exchange is promoted, so that the functionality and the safety of the culture bottle are improved.

The utility model discloses a magnetized ion oxygen supply device which comprises a fan assembly, a magnetized air assembly and a switch assembly, an air outlet is formed in one side of the fan assembly, and a suction opening is formed in the other side; the magnetized air assembly comprises a conical pipe and a mounting frame, an oxygen-enriched outlet is formed in the narrow end of the conical pipe, the other end of the conical pipe is connected with the mounting frame, the mounting frame is of a hollow structure, an air inlet is formed in the side wall of the mounting frame, a plurality of mounting plates are arranged on the mounting frame, and a plurality of permanent magnets are arranged on each mounting plate; the switch assembly comprises a control panel and a driving mechanism, the control panel is arranged between the suction opening and the oxygen-enriched outlet, a conducting hole is formed in the control panel, and the driving mechanism can drive the control panel to move so as to drive the conducting hole to be connected or disconnected with the suction opening and the oxygen-enriched outlet. According to the utility model, the oxygen concentration in air flowing into the fan can be improved; and the mechanical switch assembly is adopted to control oxygen supply, so that the overall manufacturing cost of the equipment is reduced, and the maintenance difficulty of the equipment can also be reduced.

The embodiment of the invention provides a device for improving the oxygen concentration in lead-bismuth alloy, and the device comprises a housing which is arranged to form a containing cavity, and the bottom and the top of the housing are respectively provided with a fluid inlet and a fluid outlet which are communicated with the containing cavity; the containing cavity is filled with the oxide particles, when the lead-bismuth alloy flows through the oxide particles, the oxide particles can be dissolved to generate oxygen, and therefore the oxygen concentration in the lead-bismuth alloy is increased; the isolation cover is arranged in the containing cavity and used for forming an independent space in the containing cavity, and the portion, outside the isolation cover, of the containing cavity is filled with the oxide particles; and the fluid driving part extends into the isolation hood from the outside of the shell and is used for providing power for the lead-bismuth alloy to enter the accommodating cavity from the fluid inlet and flow out from the fluid outlet. The isolation cover is arranged, the fluid driving piece extends into the isolation cover from the outside, the lead-bismuth alloy can be driven to make contact with the oxide particles, the flow speed can be adjusted, and the oxygen concentration in the lead-bismuth alloy can be effectively improved.