9 results about "Oxygen distribution" patented technology

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.

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 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 present invention relates to a facility for raising animals, particularly poultry and pigs, comprising means for supplying water to the animals for drinking, the supply means comprising: - a syringe (7, 8) that enables the injection of gas into the water; - a water inlet line (20) and an air inlet line (3, 4, 5, 6) leading to the syringe; and - a source (1) of oxygen or an oxygen-containing gas mixture, such as an oxygen reservoir capable of distributing oxygen to the gas line; - a water tank (17) at atmospheric pressure, the syringe being supplied with water from the water tank located therein, the water tank also being able to be supplied with fresh water (20); - a coil (10) capable of receiving dissolved oxygen-laden water from the syringe, the water reaching the coil by means of a pump (9), the coil enabling a water / oxygen contact time; - water leaving the coil passing through an outlet (12) so as to be directed entirely to the drinking area or partially to the drinking area and partially to the water tank (17). The invention is characterized by performing two simultaneous injections of oxygen or an oxygen-containing mixture in water: one (3, 5, 7) upstream of the pump and another (4, 6, 8) downstream of the pump (9), wherein the flow rate of the injection performed upstream of the pump is lower than the flow rate of the injection performed downstream of the pump.

The application discloses a method and equipment for distributing oxygen in an oxygen-coal gun and blast, which comprises the following steps: establishing a geometric model of the oxygen-coal gun, a direct blowing pipe, a tuyere and a revolving zone, determining a gas phase basic control equation and a control equation between the gas phase and particles, defining equation iteration parameters based on current distribution data of oxygen in the oxygen-coal gun and the blast, and iterating the two equations, and then screening a first fly ash mass fraction before combustion, a second fly ash mass fraction after combustion, a high-temperature heat flow temperature and a tuyere surface temperature of the revolving zone from the converged calculation results; determining a pulverized coal burnout rate according to the first fly ash mass fraction and the second fly ash mass fraction, and determining a heat flow density according to the high-temperature heat flow temperature and the tuyere surface temperature; and determining whether the current distribution data is optimal distribution data according to the pulverized coal burnout rate and the heat flow density. Production according to the optimal distribution data can not only improve fuel utilization rate, but also avoid tuyere melting loss and erosion, and thus yield and income are increased.

The utility model discloses a kind of transport oxygenation devices for fish aquatic products, including transport box body, the fixed platform is equipped in transport box body upper portion, the top cover is equipped in the opening of transport box body upper portion, further include micro-nano bubble unit, the micro-nano bubble unit includes premixing cavity fixed in the upper portion of fixed platform, the premixing cavity side is communicated with Venturi tube, the pipeline that Venturi tube is communicated with by gas pump air supply, gas is primarily mixed to form gas-liquid two-phase flow in the premixing cavity by Venturi tube and high-pressure water flow, the cyclone shear cavity is communicated with in the lower portion of premixing cavity by a pipeline that penetrates fixed platform, the outlet lower portion of cyclone shear cavity is communicated with ultrasonic transducer. The utility model belongs to the technical field of oxygenation device, effectively solve the problem that oxygen distribution is uneven when using transport oxygenation devices for fish aquatic products, affect the survival rate of fish aquatic products transportation.

This invention relates to the field of aquaculture technology and discloses a large-scale silver carp and bighead carp seedling cultivation equipment, including a cultivation net cage. A support frame one is installed near the top of the inner wall of the cultivation net cage, and a support frame two is installed near the bottom of the inner wall of the cultivation net cage. A partition net is installed between the inner wall of the support frame two and the inner wall of the cultivation net cage. An oxygen distribution mechanism for uniform oxygen distribution is provided inside the cultivation net cage. The oxygen distribution mechanism includes an oxygenation drive component and an oxygen distribution component. This invention, by setting a differentially rotating oxygen delivery main pipe and a fan-shaped blocking plate, can intermittently block the first oxygen delivery nozzle, causing the internal air pressure of the oxygen delivery branch pipe to periodically increase. This significantly increases the air output rate of the second oxygen delivery nozzle and the nozzle branch pipe, effectively enhancing the oxygen supply intensity near the outer water area of ​​the cultivation net cage. It specifically compensates for the low dissolved oxygen in the outer water body due to its distance from the air source, greatly improving the uniformity of oxygen distribution throughout the entire net cage area.

This utility model discloses a reaction tank structure with a shaft-core through-type stirring impeller for oxygen supply, relating to the fields of hydrometallurgy and stirring technology. It includes: a reaction tank body, with a hollow shaft nested in the middle of the tank body; a turbine impeller is fixedly sleeved in the middle of the hollow shaft; and a radial flow impeller is connected to the bottom end of the hollow shaft. The radial flow impeller includes a hollow disk, with multiple hollow oxygen supply blades fixed at equal intervals on the sidewall of the hollow disk. Multiple air holes are opened on the side of the hollow oxygen supply blades facing away from the direction of rotation. This utility model uses the radial flow impeller to spray bubbles near the bottom of the tank, generating a radial jet. The bubbles are immediately sheared and broken up at high speed upon exiting through the micro-holes, preventing bubble merging and deposition. The turbine impeller generates a large-scale circulating axial flow in the upper part of the liquid layer, rapidly entraining and evenly distributing the refined bubbles throughout the entire liquid volume, resulting in uniform oxygen distribution.

This invention relates to an insulating plate structure for an AEM electrolyzer, belonging to the field of hydrogen production technology. Based on the optimization requirements of fluid distribution, gas collection, and sealing performance, this invention designs multi-regional symmetrical water-oxygen distribution zones with precise parameters on the top surface of a cuboid insulating plate, sets a hydrogen collection zone with turbulence-dispersing columns and reinforcing ribs on the bottom surface, and constructs a sealing zone composed of multiple sets of sealing grooves and sealing rings of specific materials. Simultaneously, 40% glass fiber reinforced polyphenylene sulfide (PPS) is selected as the substrate. This achieves uniform distribution of the reaction medium, efficient collection and separation of hydrogen, and overall sealing reliability and structural stability of the electrolyzer under a high-pressure operating condition of 1.6 MPa, providing crucial structural support for the high-performance operation of the AEM electrolyzer.