75 results about "Oxygen distribution" patented technology

The invention discloses a sewage biological reaction tank treatment method based on plant root filler, and relates to the technical field of environmental engineering and water treatment.The sewage biological reaction tank treatment method comprises the following steps that a unified event time base line is constructed, an inflow fluctuation frequency spectrum is extracted, nutritive salt layering fingerprints are generated, and a layering risk field in a reaction tank is quantified; under the constraint of layered fingerprints of nutritive salt, the three-dimensional gradient of dissolved oxygen distribution is reconstructed, an oxygen debt threshold value is calculated, and micro-area space coordinates of the suffocation area are positioned. By constructing a uniform event time baseline, time sequence identification and response control of inflow disturbance are realized, a precise positioning suffocation area is reconstructed in combination with nutritive salt layered fingerprints and oxygen distribution, a root zone physiological signal is introduced to identify a fragile layer, and aeration and inflow are cooperatively regulated and controlled, so that synchronous destructive intervention is realized; finally, a layered structure is controlled and cut off through the time reversal flow state, a dynamic closed-loop regulation and control mechanism is constructed, and the stability of the reaction tank under the fluctuating working condition and the consistency of the effluent quality are effectively improved.

The utility model discloses dragging equipment for a fishpond aerator. The dragging equipment comprises a driving device, a transmission device, a hanging assembly and a limiting block set. The driving device is arranged at one end of the fishpond, and the transmission device is arranged at the other end of the fishpond relative to the driving device; the two ends of the mounting assembly are slidably connected to the driving device and the transmission device, the aerator and the limiting block sets are connected to the mounting assembly, and the aerator is arranged between the limiting block sets. The driving device and the transmission device are arranged at the two ends of the fishpond respectively, the hanging assembly can slide in the whole fishpond range, and therefore the aerator can flexibly move in the needed time and place. Therefore, the efficiency of oxygenation operation is improved, and the uniformity of oxygen distribution in each area of the fishpond is ensured.

The invention relates to an aeration device, and relates to the technical field of aeration, the aeration device comprises an oscillator, the oscillator comprises a plurality of jet flow groups, the jet flow groups are symmetrically arranged, each jet flow group comprises a main jet flow channel and a feedback channel, the main jet flow channels are obliquely arranged, the plurality of main jet flow channels share one air inlet, and the main jet flow channels are provided with independent air outlets; an aeration disc is mounted at the air outlet and comprises a disc surface, micropores are formed in the disc surface, one end of each feedback flow channel is communicated with the air inlet of the corresponding main jet flow channel, and the other end of each feedback flow channel is communicated with the corresponding main jet flow channel. The oxygen distribution device has the advantage of being good in oxygen distribution effect.

An oxyhydrogen baking lamp holder comprises a supporting plate, an oxygen distribution pipe and a hydrogen distribution pipe. The oxygen distribution pipe is connected with the supporting plate, the oxygen distribution pipe is communicated with the oxygen inlet pipe and the oxygen outlet pipe, and the oxygen outlet pipe is communicated with the glass lamp; the hydrogen distribution pipe is connected with the supporting plate, the hydrogen distribution pipe is communicated with the hydrogen inlet pipe and the hydrogen outlet pipe, and the hydrogen outlet pipe is communicated with the glass lamp. During application, oxygen and hydrogen are firstly introduced into the oxygen inlet pipe and the hydrogen inlet pipe, and then the oxygen sequentially passes through the oxygen distribution pipe and the oxygen outlet pipe and then reaches the glass lamp; the hydrogen sequentially passes through the hydrogen distribution pipe and the hydrogen outlet pipe and then reaches the glass lamp, and then the hydrogen burns in the oxygen to complete the polishing effect; a hollow structure is formed among the supporting plate, the oxygen distribution pipe and the hydrogen distribution pipe, so that the baking lamp holder is light in weight; after the light baking lamp holder is fixed to the air cylinder, the air cylinder can be overturned up and down conveniently, and the machining efficiency is improved. Therefore, the baking lamp holder is light in weight, and the processing efficiency of the baking lamp is improved.

The invention relates to a device for safely actuating a gaseous oxygen supply container in an aircraft for dispensing oxygen to a user, the container (1) being intended to store pressurized oxygen at a first oxygen pressure and having an opening (2) sealed by a seal (9). The apparatus comprises: a manifold (4) connected in fluid communication with the seal (9) and configured to receive a flow of oxygen from the opening (2) when the seal (9) is pierced, the manifold (4) comprising an oxygen flow circuit (11), an oxygen flow circuit connected in fluid communication with the seal (10) and having an outlet (14) at a second oxygen pressure lower than the first pressure and a pressure reducer (13) having means (12, 15, 16) for regulating the oxygen pressure between the opening (2) and the outlet (14) during flow; and an actuator (7) located in the opening (2), the actuator being configured to pierce the seal (9) when triggered to allow oxygen to flow from the container (1) through the opening (2) to the outlet (14), the oxygen flow circuit (11) comprising a calibration aperture (17) provided at the outlet (14), the calibration aperture is configured to prevent any accumulation of oxygen at a third pressure between the first pressure and the second pressure without triggering the actuator (7) in the event that oxygen flows to the outlet (14).

The application discloses an aeration dynamic balance digital control method and system for coping with flow state distortion, relates to the technical field of sewage treatment, and comprises the following steps: constructing a sewage treatment aerobic tank multi-point dissolved oxygen and flow state synchronous monitoring system, continuously collecting spatial distribution data of dissolved oxygen, water flow velocity and density in the tank, and generating a flow state distribution graph reflecting the flow state distribution characteristics in the tank; based on the flow state distribution graph, the collected water flow velocity gradient and dissolved oxygen difference are subjected to collaborative feature extraction, and an abnormal area with flow state distortion is identified. Through multi-point monitoring and dynamic weighted control, the application realizes real-time identification of the flow state of the aerobic tank and accurate regulation of the air quantity, maintains the balance of the dissolved oxygen distribution, improves the oxygen transfer efficiency and the operation stability; by introducing a fluid correction factor and a time sequence prediction model, a control closed loop with self-learning and energy-saving optimization capabilities is established, and the intelligence and economy of the aeration process are improved.

The invention provides a power system power compensation method based on oxygen distribution and an oxygen distribution system, and relates to the technical field of vehicle-mounted oxygen production, and the method comprises the following steps: determining the oxygen production amount and the oxygen demand amount of a passenger compartment; judging whether redundant oxygen exists or not according to the oxygen production amount and the oxygen demand amount; if it is determined that the redundant oxygen exists, the redundant oxygen is distributed to the air inlet end of the power system, so that power compensation of the power system is achieved; and if it is determined that no redundant oxygen exists, the oxygen production amount is increased based on the oxygen consumption amount of the power system. Oxygen supply can be carried out by considering overall operation of a vehicle power system and physiological needs of people.

The application discloses a sewage collection system for dispersed emission sources 2 O processing linkage system and processing method, the linkage system comprises: sewage pretreatment and pipe network collection system, A 2 O processing system and discharge system. The application solves the sewage collection problem caused by complex terrain in the sewage collection range by adopting negative pressure collection technology, improves the sewage collection efficiency, creatively applies the air stripping technology, the Venturi technology and the siphon technology to the sewage process, and only needs a self-priming pump to realize the sewage collection and A 2 O process of sewage lifting, sludge and water backflow and oxygenation; the Venturi jet device directly performs jet aeration on the aerobic tower, reduces the dependence on high-energy consumption mechanical aeration blower, avoids resource waste and material loss; meanwhile, the water flow and dissolved oxygen distribution of the reaction tank are optimized, natural circulation is formed between the aerobic tower and the anoxic tower through the density difference, no additional power is needed, the energy consumption is reduced, the denitrification and phosphorus removal process is promoted, and the treatment efficiency is significantly improved.

The invention discloses dragging equipment for a fishpond aerator and a dragging method of the dragging equipment. The dragging equipment comprises a driving device, a transmission device, a hanging assembly and a limiting block set. The driving device is arranged at one end of the fishpond, and the transmission device is arranged at the other end of the fishpond relative to the driving device; the two ends of the mounting assembly are slidably connected to the driving device and the transmission device, the aerator and the limiting block sets are connected to the mounting assembly, and the aerator is arranged between the limiting block sets. The driving device and the transmission device are arranged at the two ends of the fishpond respectively, the hanging assembly can slide in the whole fishpond range, and therefore the aerator can flexibly move in the needed time and place. Therefore, the efficiency of oxygenation operation is improved, and the uniformity of oxygen distribution in each area of the fishpond is ensured.

The application discloses a kind of based on multi-modal perception's combustion equipment adaptive control system and method, belong to equipment control technical field.The application gathers air duct and fan parameter, constructs air duct flow mapping model of primary air and secondary air independence, and is calibrated to form the benchmark control parameter table of each combustion stage under standard condition;Real-time acquisition equipment operation data calculates fuel supply amount, based on energy conservation principle combined with extended Kalman filter algorithm backstepping current particle actual low calorific value;Based on real-time calorific value, predict the trend of furnace temperature change, calculate the optimal flow sequence of primary air and secondary air by multi-objective optimization and back solution as damper and fan instruction;Establish the mapping relationship between flue oxygen content and furnace oxygen gradient, deduce the optimal secondary air injection interval and correct execution instruction.The application realizes the accurate control of combustion process, significantly improves the combustion efficiency and fuel adaptability, optimizes the oxygen distribution of furnace, effectively reduces pollutant emission.

The invention relates to a coal-fired unit denitration inlet and air preheater outlet parameter control system and method, and the system comprises a denitration inlet measurement module which is used for carrying out the uniform sampling of flue gas at a plurality of flue gas sampling ports preset on a plurality of measurement supports, and carrying out the measurement coupling of a temperature field; the air preheater outlet measuring module is used for obtaining temperature field data and oxygen field data at the section of an outlet flue according to the temperature field and the oxygen distribution; the data processing and analyzing module is used for analyzing flue gas components at a denitration inlet of the coal-fired unit and an outlet of an air preheater; and the control execution module is used for adjusting the operation parameters of the denitration system according to the temperature meeting the preset lowest point condition and adjusting the operation parameters of the air preheater. According to the application, high-precision measurement of temperature fields and flue gas components at a denitration inlet and an air pre-heater outlet is realized, and safe, efficient and environment-friendly operation of a coal-fired unit under a novel power system is guaranteed.

The utility model discloses a health-care oxygen tank oxygenating device, and belongs to the technical field of gas filling facilities. Comprising a left frame body and a right frame body, and the opposite sides of the front lower portions and the rear lower portions of the left frame body and the right frame body are connected through frame body lower portion supporting and fixing beams respectively. The oxygenating conveying pipe is arranged between the left frame body and the right frame body, a pressure transmitter is arranged on a pipeline of the oxygenating conveying pipe, and oxygen leading-out connecting nozzles are connected to the pipeline of the oxygenating conveying pipe in an extending mode at intervals; the introduction oxygen distribution pipe is connected with the electromagnetic valve through an oxygen diversion transition pipe; the health-care oxygen tank oxygenation positioning control mechanism is fixed on the health-care oxygen tank oxygenation fixing frame connecting beam; the electrical cabinet is arranged on the lower portion of the left frame body, the man-machine interface operation controller is arranged on the upper portion of the left frame body and connected with the electrical cabinet, and the pressure transmitter and the electromagnetic valve are electrically connected with the man-machine interface operation controller. The device has the advantages that the stability, reliability and safety of oxygen supply are guaranteed; a good intensive effect is achieved; management and monitoring are facilitated, and safety is fully guaranteed.

The utility model relates to the technical field of aquaculture, and discloses salmon culture circulating water oxygenation equipment, a circulating pump is connected with a water inlet tee joint, and water inlet pipes are arranged on two sides of the circulating pump. The tail end of the water outlet pipe is provided with a water outlet tee joint, and the two sides of the water outlet pipe are connected with flow dividing pipes. The tail end of the shunting pipe is provided with a secondary tee joint, two sides of the shunting pipe are connected with circulating pipes, and the tail ends of the circulating pipes are connected with water and gas joints. And the tail end of the gathering pipe is connected with an oxygenation head. The micro air pump is arranged, so that distributed oxygenation of the water body can be realized, and the problem of uneven oxygen distribution caused by centralized oxygenation is effectively avoided. By arranging the circulating valve on the circulating pipe, the distribution of water flow and oxygen can be flexibly controlled, so that different requirements of different culture areas on dissolved oxygen are met. Besides, the oxygen can be uniformly dispersed into water due to the design of the oxygen increasing head with a porous structure, so that the oxygen increasing efficiency is further improved, and a more suitable growth environment is provided for salmons.

The invention relates to the technical field of medical instruments, in particular to a mask support with an oxygenation function, which comprises a support frame, two fixing buckles, a fixing block, a transmission pipe, a connector and a regulating valve, the conveying pipe is provided with a plurality of first air outlet holes, the supporting frame is provided with a plurality of second air outlet holes, and the mask support achieves even distribution and efficient conveying of oxygen through the supporting frame, the adjustable fixing buckle, the stable fixing block, the flexible silica gel conveying pipe, the sealed connector and the precise adjusting valve. And the oxygen distribution effect is further optimized through a second air outlet hole and a first air outlet hole which are formed in the supporting frame and the conveying pipe respectively. The oxygen delivery efficiency is improved, the wearing comfort is enhanced, the mask can be installed and replaced through the two fixing buckles, the use cost is reduced, and meanwhile operation and maintenance are convenient. The oxygen mask is particularly suitable for patients needing to use oxygen masks for a long time, and the use experience and economical efficiency of the patients can be remarkably improved.

The present invention discloses an oxygen sub-packaging manifold detection and alarm device and an alarm method, and the following solutions are now proposed. It includes an oxygen sub-packaging manifold body and an alarm structure, and a sealing structure and a closing structure are provided on the alarm structure; by setting a driving structure and a closing structure, if there is a gas leakage, oxygen will leak into the inside of the first protective cover and the second protective cover, causing the alarm body to give an alarm. As the oxygen concentration inside the first protective cover and the second protective cover becomes higher and higher, the second connecting frame pushes the closing block to move into the connecting cylinder. Under the action of the guiding base, the closing block automatically flips, and the oxygen gas flowing inside the connecting cylinder can push the collecting cover, so that the rubber sleeve fits with the inner wall of the connecting cylinder. Not only is double-channel alarm processing performed, but also the connecting cylinder can be automatically blocked and closed to hinder the continuous leakage of oxygen, thereby improving the safety of the device.

The utility model discloses a production device of polymeric ferric chloride sulfate, which comprises a pressure-resistant tank body, a main / auxiliary liquid inlet pipe orifice, an exhaust pipe orifice and an upper gas inlet pipe orifice are arranged at the top of the pressure-resistant tank body, a liquid outlet pipe orifice is arranged at the bottom of the pressure-resistant tank body, and three lower gas inlet pipe orifices are uniformly distributed in the circumferential direction of the tank body; the main ejector is connected with a main liquid inlet pipe opening and exhausts circularly, and the auxiliary ejector injects liquid into the position below the liquid level through an extension pipe. According to the utility model, the design of an under-liquid gas distribution pipe is canceled, and a three-dimensional gas supply layout is adopted, so that the problems that the traditional structure is easy to corrode and perforate and the gas distribution is non-uniform are solved; the lower gas inlet pipe opening and the upper gas inlet pipe opening which are circumferentially symmetrical form a spiral gas-liquid mixed flow, the gas diffusion uniformity is improved, and oxidation dead angles are reduced; the main ejector and the auxiliary ejector work cooperatively, the long throat structure of the main ejector strengthens turbulent mixing, the short throat design of the auxiliary ejector generates deep microbubbles, the gas-liquid contact area is increased, and the reaction efficiency is improved; the oxygen distribution proportion and the injection mode can be flexibly adjusted to adapt to the raw material concentration fluctuation of + / -20%.

The invention relates to an oxygen distribution switch and an intelligent gas path distribution system thereof in the technical field of gas flow distribution control. The oxygen distribution switch comprises a distribution body and two control mechanisms, an inlet C and an inlet B are formed in the two sides of the distribution body, cavity grooves are formed in the two end faces of the distribution body, the groove walls of the two cavity grooves are communicated with a D1 through opening and an E outlet, a first top protruding part is arranged at the groove bottom of each cavity groove, and first vent holes are formed in the top faces of the two first top protruding parts; each control mechanism comprises a valve body, an inlet A and a port D2 are formed in the outer end face of each valve body, the ports D2 are communicated with the ports D1, a sliding groove is formed in the inner end face of each valve body, a containing groove is formed in the groove bottom of each sliding groove, second top protruding parts are arranged at the groove bottom of each containing groove, second vent holes are formed in the top faces of the two second top protruding parts, and a movable iron core is arranged in each sliding groove in a sliding mode; a third vent hole is formed in the movable iron core, an elastic element is arranged in the containing groove, and the valve body is sleeved with an electromagnetic coil. The distribution switch is compact in layout and small in occupied space, and the system can automatically distribute oxygen gas path flow according to requirements.

The invention relates to the field of gypsum production, in particular to a gypsum refining device. The lower part of the premixing reaction kettle is communicated with the total reaction kettle through an oxygen supplementing part, the upper part of the premixing reaction kettle is provided with a liquid adding assembly, the premixing reaction kettle is connected with the conveyor assembly through the liquid adding assembly, and the gypsum material is premixed in advance through the liquid adding assembly; an oxygen supplementing part is arranged between the premixing reaction kettle and the total reaction kettle; the oxygen supplementing part is of a double-layer bottle-shaped hollow structure, a flow passing channel is formed in the middle of the oxygen supplementing part, an oxygen storage cavity is formed in the oxygen supplementing part, an oxygen dividing frame is fixedly arranged in the flow passing channel, the oxygen dividing frame is of a hollow three-dimensional structure and is communicated with the oxygen storage cavity, and the oxygen storage cavity is communicated with the oxygen conveying pipe; and the problems of overlarge bubbles, non-uniform mixing and reaction lag in the traditional one-step method are avoided.

This invention discloses a numerical evaluation method for the aeration efficiency of a pumping aerator based on multi-field coupling, belonging to the field of in-situ water quality remediation technology for water sources and reservoirs. The method includes: establishing a three-dimensional computational model of the pumping aerator and completing network partitioning and regional densification; using an iterative coupling calculation with a gas-liquid two-phase flow model, an interphase mass transfer model, and an oxygen component transport model to obtain the target cross-sectional velocity and the dissolved oxygen concentration distribution throughout the water area; performing area-weighted averaging on the target cross-sectional velocity to obtain its average velocity; calculating the corresponding flow rate based on the target cross-sectional area and average velocity, and combining this with the increase in oxygen concentration to complete the numerical evaluation of aeration efficiency. This invention, through multi-field coupling calculation, simulates the entire process of oxygen dissolution and diffusion, obtaining a dissolved oxygen distribution consistent with on-site measurements. It solves the problem of difficult measurement of dissolved oxygen at the bottom of deep-water reservoirs, enabling accurate quantitative evaluation of aeration efficiency without extensive underwater monitoring, and significantly reducing evaluation costs.

The invention provides a wet garbage compost peculiar smell control method based on a synergistic effect of biochar and ozone, which comprises the following steps: S1, preparing biochar from garden wastes under an anoxic condition at the preparation temperature of 350-700 DEG C; s2, the biochar and the wet garbage are filled into a reactor, the biochar accounts for 6.5%-26% of the total solid mass, and a wet garbage mixed solution is obtained; s3, the wet garbage mixed liquid is pretreated with ozone, and the use amount of the ozone is 2-8 mg O3 / kg TS; s4, the ventilation quantity is adjusted to be 0.1 L / min / kg DM to 0.4 L / min / kg DM, so that oxygen distribution is improved, and microbial metabolic activity is promoted.

The invention discloses an intelligent matching system and a control method, and belongs to the technical field of ship power and intelligent control, and the control method comprises the following steps: collecting and resolving ship attitude data in real time through an inertial measurement unit; modeling the historical time series data by using a long short-term memory network, and predicting a future short-term hull attitude sequence; constructing a dynamic fluid distribution model by combining attitude prediction and the working condition of the cell stack, predicting the oxygen concentration of each region and identifying the risk level of gas shortage; dynamically generating an optimal control instruction of partition flow allocation and global pressure coordination by adopting a model prediction control framework; and multi-source feedback signals are fused, extended Kalman filtering and an online parameter identification mechanism are combined, real-time correction and incremental learning are performed on a prediction model, and prospective accurate matching and adaptive optimization are realized. According to the method, prospective accurate matching of oxygen supply and fuel cell requirements under the dynamic sea condition is realized, the oxygen distribution uniformity, the cell stack operation stability and the overall energy efficiency of the system are remarkably improved, and the method has strong self-adaption and robustness.

The application discloses a high-temperature spray gun mounting mechanism and a glass tank furnace, which comprises an oxygen distribution chamber, an oxygen distribution sheet, a connecting piece, a spray gun brick and a spray gun joint; the oxygen distribution chamber is a hollow frustum structure, a fifth through hole is formed in the small end of the oxygen distribution chamber, and the large end of the oxygen distribution chamber is open; an oxygen inlet is further formed in the side wall of the oxygen distribution chamber; the spray gun joint is detachably installed in the fifth through hole; a middle part of the connecting piece is provided with an embedded through groove, and the large end of the oxygen distribution chamber is detachably fixed with the connecting piece; the oxygen distribution sheet is clamped between the connecting plate and the large end of the oxygen distribution chamber, a third through hole and a plurality of fourth through holes arranged along the circumference of the third through hole are formed in the middle part of the oxygen distribution sheet; the middle part of the spray gun brick is provided with a first through hole penetrating along the axial direction of the spray gun brick, the spray gun brick is embedded in the embedded through groove and abuts against the oxygen distribution sheet, and the fourth through holes and the third through hole are both located in the range of the first through hole. The application can install different spray guns and ensure the combustion effect of the spray gun.

The invention provides a multi-interface air source device. The multi-interface air source device comprises a sealing shell, an external air inlet formed in the sealing shell, an oxygen supply interface, an oxygen supplementation interface and a plurality of output interfaces. A premixing cavity is formed in the sealing shell, the oxygen supplementing connector and the external air inlet are both communicated with the premixing cavity, a one-way air inlet valve is arranged at the external air inlet, the premixing cavity is further connected with a suction device used for sucking external air, an air processing assembly is arranged at the external air inlet, and the premixing cavity is connected with a plurality of oxygen supply branches; a main oxygen supply pipeline communicated with the oxygen supply connectors is further arranged in the sealing shell, a gas flow distributor is arranged on the main oxygen supply pipeline, one output connector is communicated with the gas flow distributor, and the gas flow distributor is further communicated with a plurality of oxygen distribution branches. The oxygen distribution branches are communicated with the corresponding oxygen supply branches and then communicated with the remaining output connectors, and the gas flow distributors are used for adjusting the flow and / or the air-oxygen ratio of all the output connectors.

The utility model discloses a wastewater treatment aeration device relates to wastewater treatment technical field, include: air pump, aeration pipe network, gas transmission seat are equipped with the installation through -hole and the air inlet channel of one end connection pump gas port of air pump, speed reducer motor, the rotation axis pipe, one end connection air inlet of aeration pipe network, and the other end is connected with the motor shaft of speed reducer motor through the shaft coupling, bearing seat, install rotation axis pipe, tubular shaft coupling, its outer tube wall is equipped with annular air inlet groove and is located air inlet groove and is connected with the air inlet hole of shaft coupling inside, wherein, the shaft coupling is through the installation through -hole, and is equipped with two sealing rings between shaft coupling outer wall and installation through -hole, and the air inlet groove is located between two sealing rings, and the other end of air inlet channel is connected with air inlet groove. The device is better in dissolved oxygen distribution uniformity, and the pollutant degradation efficiency is higher, and the structure is simple, and can bear long -term vibration and air pressure impact.

The utility model relates to the technical field of medical oxygen inhalation equipment, and provides an oxygen inhalation assembly of an oxygen generator, which comprises an oxygen guide tube connected with the oxygen generator, an oxygen inhalation tube arranged at the tail end of the oxygen guide tube and two oxygen outlet tubes arranged on the oxygen inhalation tube, the oxygen inhalation assembly further comprises an oral-nasal mask detachably arranged on the oxygen guide pipe, a guide pipe is arranged on the oral-nasal mask, an oxygen dividing opening is formed in the oxygen guide pipe, a sealing valve is arranged on the oxygen dividing opening, and a second connector used for being in butt joint with the oxygen dividing opening is arranged at the end, away from the oral-nasal mask, of the guide pipe. The oxygen uptake effect of a nose oxygen uptake mode during gastroscopy operation is guaranteed, the requirement for oxygen uptake of the mouth and the nose of a patient at the same time can be met quickly when the patient suffers from hypoxemia, the operation burden of medical staff is reduced, and meanwhile extra discomfort and trouble brought to the patient are avoided.

The utility model discloses a water pushing device for mandarin fish culture and belongs to the technical field of mandarin fish culture. The device comprises a vertical moving mechanism, a mounting frame, a horizontal moving mechanism and a water pushing mechanism, a moving part of the vertical moving mechanism is fixedly connected with the mounting frame, and the vertical moving mechanism is used for being fixed to a to-be-mounted object; the horizontal moving mechanism is mounted on the mounting frame, the mounting frame is slidably connected with the water pushing mechanism, and a moving part of the horizontal moving mechanism is fixedly connected with the water pushing mechanism. In the device, the installation depth of the water pushing mechanism and the distance from the water pushing mechanism to the center of the fishpond can be adjusted, water flow distribution can be remarkably optimized, water quality management can be improved, the water circulation efficiency and oxygen distribution can be improved, and meanwhile the requirements of different breeding stages are met.

Disclosed is a laryngoscope arrangement that channels gas, such as oxygen, through a passageway and out through an exhaust port near or at a blade distal end of a laryngoscope blade of the laryngoscope to infuse a patient with the gas during an intubation procedure. The laryngoscope arrangement can either be a gas channeling laryngoscope or gas channeling sleeve that fits over a significant portion of a standard, non-gas carrying laryngoscope. In either case, the passageway is formed along a manufacturing seam of either the gas channeling laryngoscope or gas channeling sleeve. The passageway is configured to be connected to a gas source, such as a tank or compressor.

The utility model relates to the technical field of hot blast stoves, in particular to a novel portable particle burning hot blast stove which comprises a stove body, a burning cavity and a heat exchange cavity which are communicated with each other are arranged in the stove body, a hearth is arranged in the burning cavity, a burner is arranged in the hearth, and a plurality of oxygen distribution pipes communicated with the burning cavity are arranged on the hearth. A hopper is fixedly arranged at the top of the furnace body, the bottom of the hopper penetrates through the furnace body and communicates with the top of the hearth, a multi-return-stroke heat exchanger is fixedly arranged in the heat exchange cavity, one end of the multi-return-stroke heat exchanger communicates with the middle of the hearth through a communicating pipe, and a smoke guiding machine is fixedly arranged outside the furnace body. The other end of the multi-return-stroke heat exchanger communicates with the smoke inlet end of the smoke guiding machine, an air blower is fixedly arranged outside the portion, below the smoke guiding machine, of the furnace body, the air outlet end of the air blower communicates with the heat exchange cavity, an air outlet is formed in the side, away from the air blower, of the furnace body, and a controller is arranged at the top of the furnace body and electrically connected with the combustor, the smoke guiding machine and the air blower.

The utility model discloses an automatic oxygen distributing, adjusting and filling device. The device comprises a compressed air source unit; the input end of the gas pretreatment unit is connected with the output end of the compressed air source unit; the oxygen and nitrogen separation unit comprises an oxygen and nitrogen separation module, a first oxygen-enriched storage tank and a second oxygen-enriched storage tank; a first output end of the gas pretreatment unit is connected with an input end of a first oxygen-enriched storage tank through a first regulating valve; the first output end of the oxygen-nitrogen separation module is connected with the input end of the first oxygen-enriched storage tank through a second regulating valve, and the second output end of the oxygen-nitrogen separation module is connected with the input end of the gas separation bag through a third regulating valve; the control unit is used for automatically controlling the opening degrees of the first regulating valve, the second regulating valve and the third regulating valve according to the oxygen distribution purity; and the output end of the output unit is used for conveying the oxygen to various gas equipment. By means of the device, automatic adjustment and accurate control in the preparation process of oxygen with different purities are achieved.

The utility model relates to the technical field of non-ferrous metal metallurgy, in particular to a secondary air oxygen distribution system of a side-blown converter, which is characterized in that a gas component analyzer is arranged at a flue gas outlet of the side-blown converter, one end of a secondary air main pipeline is connected with an air feeder, and the other end is connected with a mixing pipe; the mixing pipe is arranged in a flue gas area of the side-blown converter, and a gas mixing device is arranged in the mixing pipe; a secondary air branch pipe is arranged on the secondary air main pipeline, the secondary air branch pipe is connected with an oxygen pipeline, and a first flow regulating valve is arranged on the oxygen pipeline; a second flow regulating valve is arranged on the secondary air main pipeline, and is arranged between the air feeder and the secondary air branch pipe; and the gas component analyzer, the first flow regulating valve and the second flow regulating valve are connected with a control system. The real-time combustion state and component information of flue gas can be accurately obtained, the flow ratio of oxygen to the air supply amount is accurately controlled, the oxygen distribution accuracy is improved, the combustion efficiency of the flue gas is improved, and emission of harmful substances is reduced.