49 results about "Oxygen diffusion" patented technology

The invention belongs to the field of fuel cell structures, and particularly relates to a blocking type pin-fin fuel cell flow field plate and a fuel cell, the blocking type pin-fin fuel cell flow field plate comprises a bipolar plate and a flow channel, one end of the bipolar plate is provided with a gas inlet, and the other end is provided with a gas outlet; a plurality of rows of blocking structures are arranged in the flow channel, a plurality of supporting columns are arranged in each row of blocking structures, the supporting columns are connected through blocking walls, the supporting columns in every two adjacent rows of blocking structures are arranged in a staggered mode, and the blocking walls are lower than the supporting columns. By adjusting the distribution of reactants in the fuel cell, the oxygen concentration at two corners far away from the diagonal line and the gas inlet / outlet is improved, so that the oxygen concentration of an anoxic region under a low-voltage working condition is effectively improved. The blocking wall is periodically arranged to interfere the flowing of reaction gas, so that the flow velocity change which is periodically vertical to the bottom surface of a flow field is brought, the mass transfer of oxygen is promoted, the drainage capacity is improved, and the negative influence of excessive accumulation of liquid water on oxygen diffusion is effectively avoided.

The utility model discloses an oxygen dispersion equipment and oxygen production plant, the oxygen dispersion equipment comprises a first shell, a turbocharger and a gas purification unit, the turbocharger and the gas purification unit are arranged in the first shell, the shell wall of the first shell is provided with a first oxygen inlet, a first air inlet and a first air outlet; the first oxygen inlet is used for introducing oxygen into the first shell, the first air inlet is used for introducing air into the first shell, the gas purification unit is used for purifying the oxygen and the air introduced into the first shell, and the turbocharger can be controlled to mix and pressurize the oxygen and the air in the first shell; and the air is exhausted out of the first shell through the first air outlet. According to the turbocharger, oxygen and air can be mixed and pressurized to form mixed gas, the mixed gas can be quickly dispersed into the indoor environment, and the oxygen content in the indoor environment is increased. The gas purification unit can purify oxygen and air, kill viruses in the oxygen and the air and improve the air quality of the environment in the oxygen chamber.

The present disclosure describes intravascular oxygenation systems and methods with one or more of improved oxygen diffusion flux, improved resistance to bubble formation on the surface of non-porous hollow fibers, and reduced size. The systems and methods include a pneumatic inlet coupled to a pneumatic source that provides a gas containing oxygen at a high pressure. A plurality of hollow fiber membranes (HFM) are in pneumatic communication with the pneumatic inlet to receive the gas containing oxygen and with an outlet to exhaust a partially deoxygenated gas. An electronic controller drives the motor to oscillate the plurality of HFMs to cause a diffusive flux of the gas containing oxygen from the plurality of HFMs into a region of interest of a subject. The electronic controller may drive the motor according to an oscillation pattern, which may include a macro-oscillation with superimposed micro-oscillations.

The invention discloses a method for simulating diffusion of oxygen in a CMCs structure based on transient heat conduction. The method comprises the following steps that 1, a finite element model of the CMCs structure is established; 2, establishing an internal oxygen diffusion control equation of the CMCs structure; 3, a finite element numerical model of oxygen diffusion in the CMCs structure is established by analogy of the transient heat conduction equation; and step 4, based on the oxygen diffusion finite element numerical model, oxygen diffusion simulation is carried out in the finite element platform, and an internal oxygen diffusion result of the CMCs structure is obtained. According to the method, the diffusion behavior of an oxygen concentration field is equivalently converted into a transient heat conduction problem by utilizing the similarity of oxygen diffusion and heat conduction in a mathematical form, rapid simulation of the oxygen diffusion process in a complex structure is realized by virtue of a mature finite element thermal analysis tool, and the method can be used for predicting the oxygen concentration field in the structure. Necessary initial boundary conditions are provided for subsequent oxidation product evolution analysis, strength degradation modeling and life prediction, and the method has good engineering practical value and popularization prospects.

The utility model discloses a kind of gradient porosity MABR membrane silk assembly structures, including tube sheet, the bottom of the tube sheet is fixedly installed with hydrophobic layer, the inner wall of the hydrophobic layer is fixedly attached with vertical support layer, the hydrophobic layer and vertical support layer are all perforated with air hole, the inside of the vertical support layer is perforated with through hole, the diameter of the straight hole of the one end of tube sheet close to through hole is larger by being set, the one end of tube sheet is gas inlet end, so the gas pressure of the one end of tube sheet close is smaller, the diameter of the through hole of far away gas inlet end is smaller, so the passage cross-sectional area of the one end of tube sheet close is reduced, gas compression leads to gas pressure greater than gas inlet end, so the oxygen content dissolved into external water in unit time will rise, compensate terminal biofilm due to biofilm thickening leads to dissolved oxygen content low Problem, the air hole density of gas outlet end is larger, enhance the oxygen diffusion capacity of terminal, compensate oxygen transfer attenuation due to biofilm thickening, avoid terminal anoxia, promote outer layer denitrifying bacteria enrichment.

A solid electrolyte assembly includes a substrate, a solid electrolyte, and a first electrode and a second electrode. The solid electrolyte has oxide ion conductivity, and the first electrode is located under the solid electrolyte and contains a porous material. The first electrode has only one oxygen diffusion path that is formed overlapping the substrate and the solid electrolyte. When Sr represents the smallest cross-sectional area that is a cross-sectional area of the oxygen diffusion path at a location where the area of a cross section of the first electrode taken perpendicularly to an oxygen diffusing direction is smallest in a portion of the oxygen diffusion path where the oxygen diffusion path overlaps the substrate and the solid electrolyte in a plan view of the solid electrolyte assembly, and Sp represents the area of a region where the first electrode and the second electrode overlap each other in a plan view of the solid electrolyte, Sr / Sp is from 1×10−7 to 6.9×10−4.

A strain gauge (10) according to one embodiment of the present invention is provided with: a first laminate (LB1); the first laminate (LB1) has a Cr-based strain resistance layer (13) that is provided on the resin-based substrate (30) and has a body-centered cubic structure, a first layer (11) that is provided between the resin-based substrate (30) and the strain resistance layer (13), and a second layer (12) that is provided between the strain resistance layer (13) and the first layer (11) and serves as a base layer when the strain resistance layer (13) is formed. The first layer (11) suppresses the diffusion of oxygen from the resin-based substrate (30) to the strain resistance layer (13), and the second layer (12) suppresses the crystal growth of the strain resistance layer (13) caused by the crystal structure of the first layer (11), thereby maintaining the strain coefficient and having high adhesion to the resin-based substrate.

The invention relates to a method of oxygen hardening of a Group IV metal, comprising the steps of: providing a workpiece of a Group IV metal in its final shape; oxidizing the Group IV metal in an oxidizing atmosphere at a first temperature using a gaseous oxidizing species having an upper temperature limit of up to 800°C for an oxidation duration of at least 10 minutes to provide a non-delaminated Group IV metal oxide on the surface of the workpiece, wherein the first temperature is in the range of 500°C and the upper temperature limit of the gaseous oxidizing species; diffusing oxygen from the non-delaminated Group IV metal oxide into the Group IV metal in an inert atmosphere at a second temperature in the range of 500°C to 800°C and at a partial pressure of the gaseous oxidizing species of up to 10"4mbar for a diffusion duration of at least 0.1 hour to provide a surface diffusion zone comprising oxygen in solid solution. In another aspect, the invention relates to a Group IV metal component comprising a material core having a core hardness and a surface hardness of at least the core hardness + 200 HV 0.025 The component is obtainable in the method of the invention.

The utility model discloses a composite biological organic bacterial fertilizer production fermentation tank, relates to the technical field of fermentation, and aims to solve the technical problems of oxygen diffusion blocking, fermentation efficiency reduction and peculiar smell gas generation caused by floating foam accumulation due to non-uniform aeration and insufficient stirring when high-moisture materials are fermented, and the composite biological organic bacterial fertilizer production fermentation tank comprises a tank body, a stirring mechanism is arranged at the lower end in the tank body, an aeration mechanism is arranged on the side surface of the stirring mechanism, and a defoaming mechanism is arranged at the upper end in the tank body. The floating foam removing efficiency is optimized through the collaborative design of the guide groove and the bucket, the guide groove adopts an inward inclined slope structure for directional flow guide, floating foam captured by the bucket slides into the temporary storage basin body, the liquid level retention amount is reduced to improve the oxygen diffusion condition, the front end of the bucket is open, the side wall is gradually expanded in a trapezoidal structure, the floating foam gathering range is enlarged, and the floating foam removing efficiency is improved. According to the combination, the local anaerobic risk is reduced through physical diversion, and the problems of fermentation efficiency reduction and peculiar smell caused by floating foam accumulation are relieved through cooperative operation of a stirring mechanism and an aeration mechanism.

The application relates to an oxygen diffusion kinetic energy and expansion cold energy cascade coupling recovery device and method, and relates to the technical field of energy recovery and utilization. The device comprises a diffusion tower pipeline side, a turbine expansion generator set, a safe diffusion system, a post-treatment and tail gas emission system and an instrument control interlocking system. The application has the effects of high-efficiency recovery of pressure energy, improvement of cold energy cascade utilization and realization of noise reduction and environmental protection.

A kind of low-carbon cold region natural air admission aerobic fermentation tank device, including air inlet, fermentation tank, the upper portion of the fermentation tank is connected air inlet, air inlet outside has air inlet lip, air inlet inside has air guide pipeline, air guide pipeline inside is connected dust screen, air guide pipeline lower portion is connected air supplement pump, by preheating, the temperature of air admission is promoted to the suitable range of microorganism, improves the decomposition rate of organic matter;Preheating reduces the relative humidity of air, avoids material to be blocked due to excessive wet, and dry hot air promotes material loose, maintains porosity, ensures oxygen diffusion efficiency;By using tank heat preheating, energy self-sufficiency is realized, and operating cost is reduced;Heat production peak is preheated sufficiently, avoid overheating when heat production trough, reduce manual intervention, and carbon footprint is reduced.

The invention discloses an oxidation-thermal mechanical fatigue life prediction method based on a crystal plasticity theory. The method comprises the following steps: generating a representative volume unit with a grain boundary characteristic, importing the representative volume unit into abaqus software, and applying a boundary condition; based on a crystal plasticity constitutive theory and an oxygen diffusion control equation under thermal mechanical fatigue, corresponding UMAT and UMATHT subprograms are written; taking the UMAT subprogram and the UMATHT subprogram as abaqus calculation files, combining the abaqus calculation files with representative volume elements with grain boundary characteristics, and carrying out crystal plasticity finite element simulation under thermal mechanical fatigue; according to the finite element simulation result, fatigue damage and oxidative damage parameters under different working conditions are obtained respectively, the obtained parameters are substituted into the thermal mechanical fatigue life prediction model under the heat-force-oxygen coupling effect, and the predicted life is obtained. According to the method, the mechanical damage and the oxidative damage of the turbine disc under the service condition can be accurately simulated, and the prediction precision of the thermal mechanical fatigue life is improved.

The invention discloses a gradient hot melt adhesive spraying process for anti-oxygen permeability of a can opening seaming. According to the process, a hot-melt sealant containing a three-phase system is sprayed on the inner wall of the turned edge of the can cover, a phase A is a low-viscosity wetting polymer, a phase B is a high-barrier polymer, and a phase C is a microencapsulation oxygen consumption component. The glue layer is preheated through steam flushing and discharging or hot air before seaming, a first seaming roller induces a phase B to be subjected to microfibrillating orientation and enrichment in the middle of the glue layer under the tightening and micro-eccentric conditions, and a phase A permeates into a metal interface; the second rolling and sealing roller locks the orientation structure under the effect of cooling airflow, meanwhile, lubricating oil induces the A phase to be enriched to the outer layer, and in the cooling process, the C phase is gradually released and consumes residual oxygen. Therefore, a wetting layer-barrier layer-buffer layer gradient structure along the thickness direction is formed in situ in the seaming seam, the oxygen diffusion path is effectively prolonged, and the permeation rate is reduced.

A phosphorescent structure (200) has a multitude of spatially separate cells, each having a functional material system (204), wherein each cell of the multitude of cells is selectively convertible from a first phosphorescent state to a second phosphorescent state in a contactless manner by reducing the oxygen content present in the cell, wherein the respective cell has lower phosphorescence in the first phosphorescent state than in the second phosphorescent state; and one or more oxygen diffusion barrier materials (212) that at least partly enclose the cells in order to reduce oxygen diffusion into the respective cell.

The invention discloses an edible mushroom liquid submerged fermentation device, and relates to the field of edible mushroom fermentation devices.The edible mushroom liquid submerged fermentation device comprises a fermentation box body, a partition plate is fixedly installed on the inner wall of the fermentation box body, a supporting frame is fixedly installed on the upper surface of the partition plate, and a driving assembly is fixedly installed at the top of the partition plate; and one end of the driving assembly is fixedly connected with a stirring assembly. A first stirring rod and a second stirring rod are arranged in a staggered and inclined state, in the process that the stirring structure is separated from a culture medium, the stirring structure can mark an opening in the culture medium, air in the device can enter the culture medium from the opening, the effect of improving the oxygen solubility is achieved, and the oxygen solubility is improved. In this way, the problems that the oxygen diffusion speed is low and the oxygen diffusion range is small due to the fact that the viscosity of the culture medium is high are solved, the stirring structure in the culture medium can stir the culture medium at a low speed, and oxygen can be diffused to all positions of the culture medium.

The utility model discloses an oxygen dispersion equipment and oxygen production plant, the oxygen dispersion equipment comprises a first shell and a turbocharger arranged in the first shell, the shell wall of the first shell is provided with a first oxygen inlet, a first air inlet and a first air outlet, the turbocharger is provided with a second oxygen inlet, and the first air inlet and the first air outlet are communicated with each other. The first oxygen inlet is communicated with the second oxygen inlet through a pipeline and used for introducing oxygen into the turbocharger, the first air inlet is used for introducing air into the first shell, and the turbocharger can be controlled to mix and pressurize the oxygen in the turbocharger and the air in the first shell and discharge the oxygen out of the first shell through the first air outlet. According to the turbocharger, oxygen and air can be mixed and pressurized to form mixed gas, the mixed gas can be rapidly dispersed into the indoor environment after being exhausted into the indoor environment, the oxygen content in the indoor environment is increased, and oxygen is prevented from being distributed around an oxygen source in a concentrated mode.

The invention discloses a high-efficiency aeration device for sewage treatment, relates to the technical field of sewage treatment, and aims to solve the technical problems that an existing aeration device is single in aeration mode and difficult to consider basic oxygen supply and enhanced mixing requirements, the high-efficiency aeration device comprises a plurality of aeration discs, each aeration disc comprises an aeration pipe and a supporting assembly, the supporting assembly comprises a lower supporting pipe and an upper supporting pipe, a plurality of control rods are movably arranged at the top of the upper supporting pipe, the tops of the control rods are movably connected with an aeration cover, a plurality of aeration holes are formed in the top of the aeration cover, a lifting cylinder is slidably arranged on the circumferential outer wall of the upper supporting pipe, and the top of the lifting cylinder is connected with a gas collecting cover through a plurality of fixing rods; the aeration hoods are rotationally arranged between every two gas collecting hoods, the plurality of aeration hoods and the plurality of gas collecting hoods can be combined to form an umbrella-shaped hood body or an explosive hood body, and the output end of the aeration pipe is arranged below the umbrella-shaped hood body. The device has the advantages that continuous basic aeration is realized, oxygen is provided for microorganisms in sewage, and sewage disturbance and oxygen diffusion efficiency are enhanced.

The invention belongs to the technical field of medical instruments, and particularly relates to an oxygen generating device for an oxygen therapy system, which comprises a shell, an application is connected to the bottom of the shell, a lens is arranged at the top of the shell, a surface cover is fixedly arranged in the shell, a display screen is embedded in the surface cover, a circuit board is connected to the bottom of the surface cover, and the circuit board is electrically connected with the display screen. A rechargeable battery is fixedly arranged in the shell, an oxygen production assembly is arranged in the shell, and the oxygen production assembly comprises an upper conductive substrate, a lower conductive substrate, a silicon rubber case and an oxygen production plate. According to the oxygen generating device for the oxygen therapy system, the oxygen outlet is directly aligned to the center of the navel, a complex conveying pipeline is not needed, oxygen directly acts on the navel part in a natural diffusion mode, the direct action mode of natural diffusion of the oxygen is combined, loss of the oxygen in the conveying process is reduced, and the local oxygen absorption rate is remarkably increased; limited oxygen can be accurately conveyed to an efficient absorption area, resource waste is avoided, and light weight and portability of equipment are achieved.

This invention relates to the field of water treatment technology and discloses an environmentally friendly water treatment aeration device. The device includes a treatment tank, a rotating shaft rotatably connected to the inner wall of the tank, an air pipe fixedly connected to the inner wall of the rotating shaft, an air pipe 2 fixedly connected to the inner wall of the air pipe 1, an air pipe 3 fixedly connected to the circumferential surface of the air pipe 2, a gear rotatably connected to the circumferential surface of the air pipe 2, blades fixedly connected to the circumferential surface of the shaft, and an aerator fixedly connected to the top of the shaft. This device agitates the water and injects oxygen, effectively increasing the oxygen distribution range and the contact area between oxygen and wastewater. Simultaneously, it can heat the wastewater comprehensively when the temperature is too low, preventing the water viscosity from increasing due to low temperatures, thus reducing the resistance to oxygen diffusion from air bubbles to the water and consequently significantly decreasing aeration efficiency. Furthermore, the activity of aerobic bacteria decreases due to the low-temperature environment, leading to a decrease in wastewater treatment efficiency.

A solid electrolyte assembly includes a substrate, a solid electrolyte, and a first electrode and a second electrode. The solid electrolyte has oxide ion conductivity, and the first electrode is located under the solid electrolyte and contains a porous material. The first electrode has only one oxygen diffusion path that is formed overlapping the substrate and the solid electrolyte. When Sr represents the smallest cross-sectional area that is a cross-sectional area of the oxygen diffusion path at a location where the area of a cross section of the first electrode taken perpendicularly to an oxygen diffusing direction is smallest in a portion of the oxygen diffusion path where the oxygen diffusion path overlaps the substrate and the solid electrolyte in a plan view of the solid electrolyte assembly, and Sp represents the area of a region where the first electrode and the second electrode overlap each other in a plan view of the solid electrolyte, Sr / Sp is from 1×10-7 to 6.9×10-4.

1. Name of the product in this design: Diffuse Oxygen Supply Controller. 2. Application of this design: This design is used to control oxygen diffusion and humidification. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. Other situations requiring explanation: Other explanation: Area A is made of transparent material.

The utility model discloses an oxygen supply device for agricultural and sideline aquatic product transfer, which belongs to the technical field of aquatic product oxygen supply and comprises a breather pipe and an air outlet plate box, vent holes are formed in the periphery of the top and the side face of the air outlet plate box, and a connecting piece is arranged at the top of the air outlet plate box. A plurality of groups of air outlet plate boxes are connected and communicated through the connecting pieces, then oxygen is introduced into the communicated air outlet plate boxes through the connectors installed at the ends of the ventilation pipes, the air outlet plate boxes are communicated through the ventilation pipes, and the air outlet plate boxes are communicated through the connectors installed at the ends of the ventilation pipes. Oxygen is diffused in the multiple sets of air outlet plate boxes and then diffused outwards from the ventilation holes, the situation that the multiple ventilation pipes occupy space is avoided, meanwhile, the air outlet plate boxes are flatly laid at the water bottom, the occupied space is small, oxygen is evenly distributed, and the phenomenon that aquatic products die locally due to uneven oxygen distribution is avoided.

The present application proposes a method for determining the oxidation rate of a flue gas wet desulfurization oxidation reaction and its application, wherein the method for determining the oxidation rate of a flue gas wet desulfurization oxidation reaction comprises: mixing sulfite with a reaction medium and reacting in an oxygen-deficient environment to obtain a reaction liquid; extracting a first volume of the reaction liquid at a first time interval during the reaction process, and determining the concentration of sulfite in the reaction liquid; drawing a scatter plot of the reaction time and the sulfite concentration in the reaction liquid, and performing a linear fit, and taking the absolute value of the slope of the fitted straight line as the oxidation reaction rate. The method for determining the oxidation rate of a flue gas wet desulfurization oxidation reaction described in the present application controls the reaction system in an oxygen-deficient state, controls the rate-limiting step of the oxidation reaction in the oxygen diffusion process, and obtains the oxidation reaction rate of sulfite by linear fitting by measuring the sulfite content of the reaction liquid at different reaction times. The method is simple to operate and has strong feasibility.

The utility model provides an aerobic stirring device for Badam vegetable oil fermentation, which comprises a tank body, a liquid collecting pipe arranged at the bottom of the tank body, a liquid inlet and outlet pipe communicated with the bottom of the liquid collecting pipe, a top cover arranged at the top of the tank body, a vertical stirring shaft arranged in the middle of the top cover, and two pairs of stirring paddles arranged up and down on the part of the stirring shaft extending into the tank body, the inner walls of the two end surfaces of the stirring paddle are respectively provided with a waterproof breathable film; the part, extending out of the top cover, of the stirring shaft is sleeved with a transmission gear; a motor is arranged on the top surface of the top cover and is in driving connection with a rotating shaft; the top end of the rotating shaft is connected with a driving gear; a rotating joint is arranged at the top end of the stirring shaft, and a breather pipe is connected to the top of the rotating joint. According to the utility model, the flat cylindrical stirring paddle is arranged, and a plurality of vent holes are formed in the end surface of the stirring paddle, so that the oxygen diffusion path can be enlarged, and the stirring contact range can be enlarged.

The invention provides an accelerated test method for simulating the corrosion condition of a part in a marine atmospheric environment. The accelerated test method comprises the following steps: putting a test part in a simulation environment for a periodic corrosion test; the periodic corrosion test comprises a damp-heat test, a drying test and a salt spray test, the damp-heat test and the salt spray test are alternately carried out, and the drying test is arranged after each damp-heat test and each salt spray test. Therefore, a periodic corrosion test with alternate wetting and drying is introduced, and a plurality of stages such as wetting, electrochemical corrosion, drying crystallization and the like in the natural corrosion process are simulated more truly. A humid heat test and a salt spray test simulate a corrosion environment with high humidity and salt deposition, and a key drying test promotes conversion of corrosion products and diffusion of oxygen, which is more consistent with a formation process of a corrosion layer in a natural environment; therefore, the corrosion mechanism generated by the accelerated test and the microstructure of the corrosion product have better consistency with the corrosion condition in the real natural environment, and the accuracy of the test result is improved.

The invention relates to the technical field of microbial agent preparation, in particular to microbial agent preparation-based fermentation equipment which comprises an equipment shell, a fermentation cavity is formed in the equipment shell, and a shake culture mechanism used for bottom aeration to improve the oxygen dissolving efficiency and a splash-proof auxiliary mechanism are arranged in the fermentation cavity. The equipment shell is provided with an automatic control mechanism for adjusting the growth environment of thalli, the lower end of the equipment shell is provided with an anti-skid damping mechanism for leveling the equipment, and the splash-proof auxiliary mechanism can adjust the aeration rate of the shake culture mechanism by detecting the dissolved oxygen content in the culture bottle. By arranging the shake culture mechanism and utilizing mutual cooperation between the rectangular shaking table and the oxygen supply assembly, vortex can be generated through horizontal circular motion of the rectangular shaking table, oxygen transfer of a gas-liquid interface can be enhanced, microbubbles can be directly injected from the bottom of a culture bottle, oxygen diffusion limitation during high-density culture is broken through, and the culture efficiency is improved. The aeration efficiency and the thallus growth synchronism can be effectively improved.

The invention discloses a system and a method for realizing limit denitrification and efficient removal of antibiotics. The system comprises an MBBR (Moving Bed Biofilm Reactor) and a sulfur-based biological filter which are connected in series, the method comprises the following steps: S1, system construction; s2, starting the system; s3, running the system; and S4, system monitoring. According to the present invention, the split type reactor design and the independent dissolved oxygen control means are adopted to achieve the efficient synergy of the nitrification unit and the denitrification unit and the flora activity protection, the aerobic MBBR and the sulfur-based biological filtration tank are physically separated, and the dissolved oxygen in the MBBR and the oxygen-deficient environment in the sulfur-based biological filtration tank are respectively controlled so as to achieve the high-efficiency denitrification effect; the inhibition of dissolved oxygen diffusion on denitrifying bacteria of the sulfur-based biological filter is avoided, and meanwhile, the efficient ammonia nitrogen conversion capability of the nitrifying bacteria is guaranteed, so that the denitrification efficiency of the system is improved by 20-30%, and a foundation is laid for realizing extreme deep denitrification.

A B.A.W.P.S. multi tower sump filter w / c.o.d. and bioskimmer is formed of glass, plastic, acrylic, or other semi-translucent material. It includes a system of filtration that will render any aquatic environment “cycleless” and has connections for internal plumbing as well as compressed oxygen diffusion or “c.o.d.”, wet / dry biologic bacteria generation and storage, lighting, protein bioskimmer filter, wet / dry trickle biologic filter, sponge prefilter, carbon prefilter, dosing system, in-sump top surface skimming, in-sump vac pipe top water skimming with skimbob, water top-off and fill feeding port with separate submerged food, water, additive and / or water treatment release port, manual or electronic feeding system, flow control manifold powerhead / (s), thermostatic system control interface, diodes, probes and sensors. The unit can stand freely on its own, or stand on its own in a separate tank. Use includes the transfer of system water be it fresh, brackish or salt, from any habitat containment chamber or area and into the filter unit for processing, and then the return of the newly treated and processed water back into the main habitat containment chamber again.

The invention discloses a gas diffusion device for a microbial fermentation tank, which relates to the field of microbial engineering technology, comprising a base, characterized in that: a bracket is arranged on the base, a fermentation tank is arranged in the bracket, the bracket is a metal frame, a drain valve is arranged at the lower part of one side of the fermentation tank, an opening is arranged on the upper side of the fermentation tank, the opening is square, and the opening matches a sealing component; an oxygen gas diffusion module is arranged at the bottom of the fermentation tank; the oxygen gas diffusion module comprises a U-shaped base, a U-shaped plate, a U-shaped slide groove, an arc-shaped slider, a connecting rod, a swing rod, a moving block, a slide rail, a screw, a motor cavity, a nozzle and a pipeline. The invention realizes oxygen gas diffusion through the synergistic effect of the oxygen gas diffusion module, the sealing component and the oxygen breaking component, and uniformly spreads a plurality of nozzles along the circumferential direction at the bottom of the fermentation tank, breaks up and aerates the bubbles after the oxygen enters the culture solution, and can effectively improve the utilization rate of oxygen and the fermentation efficiency.

The utility model discloses a diffuse type oxygen supply hanging machine which comprises an indoor control machine body, an oxygen diffusion device is arranged below the indoor control machine body, the oxygen diffusion device comprises an oxygen supply cavity, an oxygen diffusion pipe, a tension spring and a sealing disc, and the oxygen supply cavity is fixed to the bottom of the indoor control machine body. The outer side face of the oxygen supply cavity is fixedly and hermetically communicated with a plurality of oxygen diffusion pipes, a tension spring is further fixed to the center of the outer side face of the oxygen supply cavity, the outer end of the tension spring is connected with a sealing disc, and a plurality of penetrating holes corresponding to the oxygen diffusion pipes in position are formed in the sealing disc. And the center of the back surface of the oxygen supply cavity is also hermetically communicated with an oxygen supply pipe. According to the diffuse type oxygen supply hanging machine, when the machine is shut down and oxygen supply is stopped, the sealing disc is pulled outwards and rotated again, and the sealing disc is used for blocking the end opening of the oxygen emission pipe, so that the end opening is sealed, dust and other impurities are prevented from entering the end opening, cleanliness in the oxygen emission pipe can be guaranteed, and blocking can be effectively avoided.