456 results about "Gas release" patented technology

The invention relates to the technical field of material testing, and particularly discloses an intelligent quality detection method and system for a micro-mineral bio-organic fertilizer, local thermal excitation is applied to a fertilizer sample through a micro-area thermal pulse excitation device, a gas release kinetic curve and a spectrum change track are synchronously collected, and a gas spectrum coupling data cube is constructed; performing differential transformation and modal decomposition on the time sequence feature set, extracting transient response feature vectors and generating an activity response distribution diagram; establishing component-activity correlation analysis, and decoupling biological metabolic activity and matrix background interference through feature separation and a comparative learning strategy to obtain a dynamic metabolic fingerprint; constructing a multi-dimensional feature space by using the dynamic metabolic fingerprints and the apparent characteristic parameters, and performing information aggregation and feature reconstruction by using a graph convolutional network to generate a comprehensive quality index; and finally, realizing quality grade judgment based on a quality characteristic pyramid structure, and establishing a dynamic early warning mechanism by analyzing time sequence evolution characteristics of the activity response distribution diagram.

The invention discloses an intelligent cold-chain logistics monitoring method and system, and relates to the technical field of cold-chain logistics monitoring, the system comprises a data acquisition module, a data processing module, a monitoring evaluation module and a management analysis module, and the monitoring evaluation module comprises an external influence sub-module, a comprehensive influence sub-module and a cargo comprehensive risk analysis sub-module. Temperature and humidity, vibration strength and loading and unloading times are included in environmental influence indexes output by the external influence sub-module, potential influence of a transportation environment on cargo quality can be evaluated in real time, and on the basis of the environmental influence indexes, comprehensive effects of cargo release gas concentration, pressure values and the like in various cold chain transportation processes are combined, so that the cargo quality can be evaluated in real time. According to the method, the gas pressure influence factors are output through the environmental influence indexes, sensitive goods are accurately monitored, the gas pressure influence factors and the environmental influence indexes are combined, the goods comprehensive risk coefficient is output in combination with factors such as moisture loss, comprehensive risk indexes are provided for enterprises, and a cold-chain logistics risk assessment system is perfected.

The invention belongs to the field of buccal nicotine bags, and particularly relates to a buccal nicotine bag capable of releasing gas and a preparation method of the buccal nicotine bag. The buccal nicotine bag capable of releasing the gas comprises a bag body, nicotine powder and a gas releasing body, the nicotine powder and the gas releasing body are arranged in the bag body; the nicotine powder is in a pharmaceutically acceptable form suitable for oral delivery; the gas releaser releases gas when the buccal nicotine pouch is placed in the oral cavity. The gas release body releases gas in the oral cavity to give people a feeling similar to a jumping feeling, so that a sound similar to a crisp feeling is generated, and wonderful experience of taste and hearing is brought to consumers.

The application discloses a heat pipe heat sink welding process based on heat conduction and belongs to the technical field of welding. The welding equipment is composed of a vacuum box, a control box, an electromagnetic device, a heating plate, a control box, a vacuum straight-through pipe with a water cooling jacket, a water pipe, a vacuum variable-diameter cross pipe, a gas release valve, a vacuum valve, a condenser, a vacuum bellows, a vacuum pump, a baffle valve, a gas collecting pipe, a smoke hood, a liquid cooling source and a smoke purifier. The application has the advantages that the problems of product performance decline and even scrapping caused by the floating of the heat pipe in the traditional welding process are perfectly solved, the welding quality is improved, the vacuum pump is protected and the service life of the vacuum pump is prolonged, the process is simple and easy to implement, and the production cost can be greatly reduced.

The invention discloses a test device and method for simulating an ultra-high-speed penetration ground impact effect, and the device employs a static load loading system to apply a static load to the periphery of a sample so as to simulate a ground stress environment, and employs a dynamic load loading system to apply an impact dynamic load to the top of the sample so as to simulate ground impact. In the dynamic loading system, a phase change reaction kettle is used for heating liquid CO2 to a supercritical high-pressure state; the liquid filling module is used for filling liquid CO2 into the phase change reaction kettle; the gun barrel is used for receiving high-pressure gas released by the phase change reaction kettle and forming ground shock waves similar to a plane; the stress wave lens module is used for adjusting the width of shock waves through a stress wave lens combination and acting the shock waves on the sample; the control module can control the shock wave peak pressure by regulating the heating power of the phase change reaction kettle, and can control the duration time of shock waves by regulating the bore diameter of the gun barrel. According to the invention, controllable and high-fidelity simulation of the ultra-high-speed penetration impact effect is realized.

The invention discloses a preparation method and application of a high-density iron-nitrogen-carbon monatomic catalyst. The method specifically comprises the following steps: S1, uniformly mixing nitrogen-doped carbon and ferrous oxalate; s2, in an inert atmosphere, carrying out a first pyrolytic reaction at 340-360 DEG C to obtain an intermediate, and meanwhile, carrying out etching on the carbon carrier by using CO2 gas generated by the reaction, so that a plurality of microporous structures are formed on the carbon carrier; s3, the intermediate continues to be subjected to a second pyrolytic reaction in the inert atmosphere at the temperature of 850-950 DEG C, the FeOx nano-particles are converted into Fe-N4 active sites, and a pyrolytic product is obtained; and S4, naturally cooling to room temperature to obtain the high-density iron-nitrogen-carbon monatomic catalyst. Superfine ferric oxide (FeOx) nano-particles are generated through a precursor to serve as intermediates, carbon defects are created through CO2 gas released in the decomposition process of the FeOx nano-particles, and therefore the oxygen reduction reaction performance of the catalyst is remarkably improved, and the catalyst is applied to fuel cells.

According to the quantitative evaluation method for the dynamic output of the adsorbed gas and the free gas of the deep coal bed gas, the gas released by the coal bed rock core sample in the experiment process and the corresponding rock core experiment data are firstly obtained, and a basic data source fitting the actual reservoir characteristics of the deep coal bed is provided for subsequent evaluation. Then isotope value testing is conducted on the gas, a first methane carbon isotope value is obtained, and the fractionation characteristics of the methane gas in matrix holes and cracks are accurately reflected. First gas pressure and first core temperature of the coal bed gas in the matrix hole are calculated, second gas pressure and second core temperature of the coal bed gas in the fracture are obtained through calculation, and accurate characterization of the temperature and pressure field in the reservoir is achieved. Finally, the gas quantity of the adsorbed gas and the free gas of the coal bed gas is obtained through calculation by means of the gas state equation and the isothermal adsorption equation, and the accuracy of quantitative evaluation of the output of the adsorbed gas and the free gas of the coal bed gas is greatly improved through multi-source fitting of simulation experiment data and preset control equation calculation data.

The invention relates to the technical field of coal mine safety mining and rock stratum control, and discloses a deep roadway surrounding rock multi-parameter dynamic regulation and control method which comprises the following steps: firstly, dividing a monitoring area and collecting gas pressure, surrounding rock displacement, gas release amount and stress data in real time; then calculating a gas pressure influence index and a surrounding rock stress response coefficient representing multi-field coupling characteristics based on the collected data; inputting the characteristic indexes into a pre-trained multiple regression model, and calculating to generate a surrounding rock stability evaluation coefficient of each region; and finally, dynamically dividing the monitoring area into a stable area, an early warning area or an unstable area according to a comparison result of the evaluation coefficient and a set threshold interval, and respectively executing differentiated support regulation and control measures such as current situation maintenance, support strength increase or grouting reinforcement. According to the method, dynamic accurate evaluation and active fine management of the stability of the surrounding rock of the deep roadway are realized by quantifying the coupling effect of a gas field, a stress field and a displacement field.

The invention discloses a test method for a high-load heating tube for a mold, and belongs to the technical field of single-head electric heating tube detection. The method specifically comprises the following steps: S1, historical data acquisition: acquiring cold-state electrical performance data of single-head electric heating tubes with different specifications and under different working conditions; s2, historical data preprocessing: performing preprocessing including data cleaning, data normalization and data standardization on historical data to obtain a standardized data set; the test process design covers a full-period closed loop of cold state detection, hot state leakage current test, reliability test, secondary hot state leakage current test and secondary cold state detection, the electrical safety (leakage current control) under a high-load working condition is verified through the hot state test, and the reliability of an actual use scene is simulated through a rapid on-off test. Meanwhile, the appearance, temperature, gas release and other states of the heating pipe are monitored in real time, abnormal testing is terminated in time, safety risks are avoided, and it is ensured that the detection result can comprehensively reflect the actual use performance of the heating pipe.

The application discloses a test device and method for simulating the impact effect of super-high-speed penetration into the ground, wherein a static load loading system is used to apply static load to the periphery of a sample to simulate the ground stress environment, and a dynamic load loading system is used to apply impact dynamic load to the top of the sample to simulate the ground impact, wherein in the dynamic load loading system, a phase change reaction kettle is used to heat liquid CO2 to a supercritical high-pressure state, a liquid charging module is used to charge the phase change reaction kettle with liquid CO2, a barrel is used to receive the high-pressure gas released by the phase change reaction kettle and form an approximately planar ground shock wave, a stress wave lens module is used to adjust the width of the ground shock wave through a stress wave lens combination and act on the sample, and a control module can control the peak pressure of the ground shock wave by regulating the heating power of the phase change reaction kettle and can control the duration of the ground shock wave by adjusting the aperture of the barrel. The application realizes controllable and high-fidelity simulation of the impact effect of super-high-speed penetration into the ground.

This invention belongs to the field of gas sensor technology and discloses a method for preparing europium ferrite nanosensors and their applications. This method utilizes electrospinning technology combined with a specific low-temperature confined-domain calcination process (550℃~700℃) to prepare EuFeO3 nanotubes with a hollow structure and rough surface by taking advantage of the thermal decomposition kinetics differences of poly(p-v) magnets (PVP). This process effectively suppresses excessive repair of lattice oxygen while forming a unique tubular morphology, effectively "freezing" oxygen vacancies (O2) accounting for up to 34.44% on the material surface in situ. v This invention addresses the shortcomings of traditional solid fiber materials by constructing a sensor using a grinding, dispersion, and coating process. Utilizing the dual reactive surfaces of hollow nanotubes and high-concentration oxygen vacancy active sites, it achieves highly sensitive and selective detection of low-concentration ethylene gas released during fruit ripening. This invention solves the problems of small specific surface area and insufficient active sites in traditional solid fiber materials.

This invention discloses a non-invasive method, system, device, and storage medium for monitoring student attention based on gas sensing, belonging to the field of non-invasive sensing technology. The method includes: calculating a net physiological gas signal based on environmental baseline data and initial gas concentration data of the target student; calculating physiological characteristic indicators of the target student based on the net physiological gas signal, and determining the target student's metabolic rate level based on the physiological characteristic indicators; obtaining a state time-series signal based on the net physiological gas signal according to a preset discrimination criterion; inputting the net physiological gas signal and the state time-series signal into a pre-trained attention monitoring model to obtain the probability distribution of the target student's attention state; and determining the target student's attention state based on the target student's metabolic rate level and the probability distribution of the attention state. This invention assesses the cognitive state by capturing the gas released by the student, achieving non-invasive monitoring.

The utility model relates to the technical field of food processing, in particular to a shrimp meat putting device which is characterized in that a plurality of through holes are formed in a conveying belt at equal intervals in the length direction, a fan is fixedly connected to a rack, an outlet of the fan is communicated with a dispersing pipe through a connecting pipe, and the dispersing pipe is located below the through holes; air holes are formed in the upper end of the dispersing pipe at equal intervals in the length direction, baffles are fixedly connected to the two sides of the upper end of the dispersing pipe, and the air holes are located between the two baffles. Gas is sucked after the fan is started, the sucked gas is guided into the dispersing pipe through the connecting pipe, the gas in the dispersing pipe is released through the gas holes, the released gas is located between the two baffles, the baffles guide the gas to the lower surfaces of the two conveying belts, and the guided gas is released from the through holes. Gas released from the through holes impacts the shrimp meat, so that an air cushion layer is formed to isolate the shrimp meat, and adhesion between the shrimp meat and the conveying belt is avoided.

A scrubber for geothermal power generation, includes a treatment container, a drainage pipe, and a cooling mechanism. The treatment container separates geothermal steam into a separated gas and a separated liquid by treating the geothermal steam with a treatment liquid and has a steam supply opening to which the geothermal steam is supplied, and a gas release opening from which the separated gas is released. The drainage pipe is placed below the treatment container to discharge the separated liquid. The cooling mechanism cools a portion of the treatment container between the steam supply opening and the drainage pipe.

The present application relates to the technical field of marine engineering geology research, and particularly relates to a deep-sea cold spring system methane gas release simulation device and method based on PIV. The device comprises a stable pressure gas supply module, a simulation reaction module, a control collection module and a visual and PIV synchronous observation module. The stable pressure gas supply module comprises a bubble generation reaction kettle and a membrane gas-liquid pressure stabilizing device, and the membrane gas-liquid pressure stabilizing device is connected in parallel on the gas supply pipeline connecting the bubble generation reaction kettle and the simulation reaction module. The simulation reaction module comprises a flexible airbag valve system and a cold spring environment reaction cabin system, and the flexible airbag valve system is located at the air inlet of the cold spring environment reaction cabin system. The control collection module is used for controlling the bubble generation and directional release, and the visual and PIV synchronous observation module is located outside the cold spring environment reaction cabin system. The device can synchronously obtain the flow field structure, hydrate generation process, and inversion vorticity, shear rate, turbulence statistics, pressure field and acceleration, and provide a reliable experimental platform for revealing the bubble-hydrate-fluid coupling mechanism in the cold spring environment.

The application discloses a catalytic combustion heater principle prototype, which comprises an air tank, a methane tank, a mixed gas tank and a combustion chamber, the air tank is connected with the mixed gas tank through a connecting pipeline, the gas outlet of the mixed gas tank is connected with the methane tank and the combustion chamber through two connecting pipelines respectively, the top of the combustion chamber is provided with a mixed gas inlet, and a blower is arranged outside the combustion chamber, the application simulates the operation state of the underground catalytic combustion heater, high-temperature tail gas released by catalytic combustion mixed gas is used for heating oil shale layers, so that the oil shale is pyrolyzed to obtain the purpose of exploiting oil and gas, the simulation reference result of the experimental prototype can be understood as the actual operation result, the application not only reduces the exploitation cost of the oil shale in-situ conversion exploitation, but also improves the oil and gas exploitation efficiency, reduces the exploitation cost and reduces the harm of the toxic tail gas generated by incomplete combustion to animals, plants and the environment caused by direct release of the toxic tail gas into the atmosphere.

The invention belongs to the field of nuclear fuel, and particularly discloses a metal material for fuel rod gap filling and a preparation method of the metal material. The metal material comprises the following components in parts by mass: 0.01 to 44.5 parts of lead, 0.01 to 56.5 parts of bismuth, 0.01 to 61.9 parts of tin, 0.01 to 5 parts of magnesium and 0.01 to 5 parts of zirconium; and the melting point of the metal material is less than 300 DEG C. The metal material disclosed by the invention has a lower melting point and a higher heat conductivity coefficient, is applied to the in-pile service process of the fuel rod of the advanced reactor, is molten at a loop temperature to be in a liquid state, fills a gap, immerses and seals a fuel core block section, and serves as an excellent heat-conducting medium, so that heat transfer between the fuel rod core block and a cladding is realized, and the heat transfer efficiency is improved. The core block and the cladding are combined to reduce the temperature of the nuclear fuel, meanwhile, the gasification phenomenon does not exist, the phenomenon of irradiation swelling-fission gas release does not occur, the contact force between the core block and the cladding is reduced, and the service life of the fuel rod is prolonged.

The application provides an aluminum alloy cored foaming welding wire and a preparation method thereof, and belongs to the technical field of aluminum alloy welding wire production. The application utilizes the principle of thermal decomposition and gas release of the foaming agent in the aluminum alloy foaming welding wire to generate uniform bubbles in the aluminum alloy molten pool, and obtains a porous welding seam with uniform pores through rapid cooling of the molten pool, thereby realizing wide-gap welding repair foaming filling and functional strengthening effect. Compared with the existing aluminum alloy welding wire, the application can realize rapid filling and connection of the welding seam area after aluminum alloy material welding, and the welding seam filling area presents a typical porous morphology; the application can realize direct welding of lightweight porous aluminum alloy material, avoids solidification of the welding seam area, and is helpful to lightweight design; the application can realize welding foaming filling of a metal component cavity, can greatly improve the cavity filling efficiency due to the molten pool foaming, and endows the formed metal component with damping and vibration reduction functions; and the application can be used as an additive manufacturing welding wire, and can directly perform additive preparation forming of the porous aluminum alloy material.

A nitrogen-based gas discharge device 100 according to one aspect of the present invention includes: a green compact 111 containing a powder of a layered double hydroxide in which nitrite ions (NO2 -) are included between layers, and a powder of a reducing agent or a precursor thereof; and a gas discharge module 110 disposed so as to cover the green compact 111 and composed at least of a film 112 that is waterproof and has water vapor permeability and gas permeability. The solubility of the reducing agent in water at room temperature is 1 g / 30 mL or more and the pH of a 0.1 (w / v)% aqueous solution of the reducing agent at room temperature is 5.1 or less. The nitrogen-based gas discharge device 100 may also include a water-containing body 120 for supplying water vapor to the nitrogen-based gas discharge module 110.

The utility model provides a top cutting blasting CO instantaneous collecting and eliminating system which comprises an energy gathering pipe and an energy gathering pipe CO eliminating agent placed in the energy gathering pipe. A water curtain pipe; a CO eliminating agent spraying device; a CO instantaneous collection and elimination device; a CO monitoring device; during blasting, the energy gathering pipe CO eliminating agent can perform in-situ elimination on part of CO; the rest CO passes through the water curtain pipe and the CO eliminating agent spraying device, and is collected and released in the CO instantaneous collecting and eliminating device; the CO monitoring device monitors the release concentration of the gas treated by the CO instantaneous collecting and eliminating device, and it is guaranteed that the concentration of harmful gas in the roadway is within a safe range. According to the system, CO generated after energy-gathered top cutting blasting in the gob-side entry retaining project can be reduced to a safe range, it is guaranteed that the CO concentration in a roadway does not exceed the limit after blasting, monitoring and early warning can be conducted on the CO concentration in the roadway in real time, and potential safety hazards of workers are greatly reduced.

The invention discloses a wearable safety protection airbag suit system for low-altitude flight personnel, and relates to the field of safety protection equipment. Comprising a garment body which is of a wearable structure in the form of a vest or jacket with an interlayer; the air bag module is stored in the interlayer of the garment body in a folded state; the gas generation and supply module comprises a gas cylinder for storing high-pressure inert gas and a triggering device for controlling gas release; the intelligent trigger and control system comprises a sensing unit used for monitoring the motion posture and the height change rate of the wearer in real time, a control unit used for running a falling detection algorithm, judging an accident state according to monitoring parameters and generating a trigger signal, and a trigger execution unit used for receiving the trigger signal and starting the trigger device; the control unit is electrically connected with the sensing unit and the trigger execution unit. The system has the advantages of omnibearing active protection, scene adaptive intelligent triggering, high integration and friendly wearing.

The utility model provides a burner and a gas cooker comprising the same, the burner comprises a burner cap and a base, the burner cap is provided with a positioning shaft, and the base is provided with a gas channel and a positioning structure matched with the positioning shaft. A plurality of protruding limiting structures are arranged on the inner wall of the gas channel in the radial direction, up-down communicating structures are arranged on the two sides of the protruding limiting structures, and the opening width of the up-down communicating structures is smaller than the minimum width of the positioning shaft. The shortest distance from the center of the base to the protruding limiting structure is smaller than or equal to the shortest distance from the center of the base to the inner wall of the positioning structure. The upper end of the protruding limiting structure is higher than the bottom end of the positioning shaft in the vertical insertion direction of the positioning shaft. And a convex limiting structure is arranged, so that the positioning shaft cannot be arranged in an up-down communicating structure, the distance between the center of the base and the positioning shaft during misplacement is reduced, radial misplacement of the fire cover and the base is increased, and the misplacement condition is convenient to identify. The gas outlet sectional area is increased through the up-down communicating structure, and the visual effect of radial dislocation when the combustors are placed in a staggered mode is amplified while the gas release performance is not affected.

The application provides a self-driven BCG-nanoparticle complex and a preparation method thereof, and belongs to the fields of biological medicine and nanomaterials. The complex is a composite of BCG and cerium oxide nanoparticles with urease activity, the cerium oxide nanoparticles are coupled to the surface of the BCG in an asymmetric distribution through modified polyethyleneimine, and specifically, the surface of the BCG is connected to several modified polyethyleneimine derivatives through chemical bonds and electrostatic adsorption, and the polyethyleneimine derivatives wrap the cerium oxide nanoparticles through electrostatic adsorption. The complex can be self-driven by using the gas release and ion concentration change caused by the catalytic decomposition of urea in the environment, significantly enhances the adhesion and retention of BCG on the bladder wall, effectively overcomes the defects of low delivery efficiency and insufficient immune activation of traditional BCG therapy, simultaneously improves the tumor immune microenvironment, and can be used for preparing high-efficiency and low-toxicity bladder cancer treatment drugs.

The utility model discloses a battery box and a battery pack. The battery box comprises a box body, a waterproof breathable film and a protective cover, a through hole is formed in the box body, and an accommodating cavity for accommodating a battery is formed in the box body; the waterproof breathable film is arranged on the side, away from the containing cavity, of the box body and covers the through hole. The protective cover is connected with the box body and presses the waterproof breathable film, a pressure relief channel communicated with the through hole is formed between the protective cover and the box body, and the pressure relief channel forms an included angle with the axis of the through hole and penetrates through the protective cover. When the battery works normally, the waterproof breathable film ensures that only air is exchanged between the accommodating cavity and the outside, and water vapor is not allowed to enter the accommodating cavity. When the battery works abnormally, gas released by the battery breaks through the waterproof breathable film through the through hole and is discharged along the pressure relief channel. The arrangement of the pressure relief channel has the advantages that when sundries fall down by gravity and hit the protective cover, the protective cover can bear impact in the axis direction of the through hole, and the waterproof breathable film is prevented from being punctured and losing efficacy.

This invention provides a method for preparing a lithium-rich manganese-based cathode material, comprising the following steps: D1: Lithium nitrate, manganese nitrate, nickel nitrate, and cobalt nitrate are dissolved in deionized water at a molar ratio of 1.2:0.54:0.13:0.13 to prepare a metal salt solution. 1.2 Mn 0.54 Ni 0.13 Co 0.13 O2 is co-precipitated with a precipitant and a complexing agent in a solvent to generate a lithium-rich manganese-based core; D2: The lithium-rich manganese-based core is mixed with an interfacial bridging agent in an organic solvent and stirred for 2-4 hours. After drying, an interfacial bridging agent layer is formed on the lithium-rich manganese-based core; D3: The material obtained after step S2 is mixed successively with three metal salt solutions of different concentrations, and different NCM shells are coated on the outside of the interfacial bridging agent layer; D4: After high-temperature sintering, a lithium-rich manganese-based cathode material is obtained. In this invention, the LMRO core, Li2ZrO3 bridging agent, and gradient NCM shell work synergistically to greatly enhance the inhibition of lattice oxygen migration, improve structural stability, and thus significantly improve the first-time efficiency and suppress the cumulative gas release.

The utility model provides a bridge expansion joint. The bridge expansion joint comprises two main bodies, a rubber strip and two strip-shaped air bags, wherein the two main bodies are fixed to the two sides of a bridge preformed groove correspondingly; the rubber strip is arranged between the two main bodies; the adjacent side faces of the two main bodies are each provided with an upper protruding part and a lower protruding part, so that a groove structure is formed. The two strip-shaped air bags are respectively arranged in the two groove structures; moreover, the two sides of the rubber strip are inserted into the two groove structures respectively, located on the lower side of the strip-shaped air bag and provided with extension parts, and the extension parts extend upwards and are bent towards the openings of the grooves so as to wrap the outer side of the strip-shaped air bag. And when the adhesive tape needs to be replaced, the air in the strip-shaped air bag is released, so that the strip-shaped air bag can be folded, and the pressure borne by the adhesive tape is eliminated. According to the bridge expansion joint, the adhesive tape can be rapidly replaced, and the bridge maintenance efficiency is improved.

The application discloses a device and a method for generating nanobubble fuel oil by using a rotating flow and a particle bed, wherein the device comprises a rotating flow generator and a particle bed in the rotating flow generator; a tangential liquid inlet is arranged on the upper end of the shell wall of the rotating flow generator; a top particle filter screen and a bottom particle filter screen are arranged below the tangential liquid inlet; the particle bed is contained in an area surrounded by the shell side wall of the rotating flow generator, the top particle filter screen and the bottom particle filter screen, and is filled with at least two kinds of oil-repellent particles with different particle sizes at a volume filling rate of 50%-70% to form the particle bed; and the method is characterized in that fuel oil with a gas pre-dissolved therein is injected into the rotating flow generator through the tangential liquid inlet, then flows into the particle bed to form nanobubbles, and finally flows out together with the fuel oil to obtain nanobubble fuel oil. The device has a compact structure, and nanobubbles with high concentration and small D50 can be prepared without using external high-energy-consumption equipment, so that the combustion efficiency is improved.

The application discloses a kind of quick detection device of gas content in transformer oil, it is related to the technical field of power transformer;Quick detection device of gas content in transformer oil includes first air pump, second air pump, gas separation structure, booster oil pump, circulation structure and gas detection device;First air pump forms negative pressure environment above the oil surface in heating inner bag, and carries out atomization spray to oil by circulation structure, can be fully released from dissolved gas in oil, greatly speeds up the gas release speed in oil liquid;After enrichment by pressurization, the gas concentration of the gas after release is improved, to avoid the detection deviation caused by too low gas concentration even missed detection;The application also designs laser detection structure based on photoacoustic effect and heat cleaning structure for removing residual water vapor;The device provided by the application shortens the overall time consumption of gas release and detection in transformer oil, and guarantees the accuracy of oil release gas detection.

The invention provides a method and a device for intelligently repelling mosquitoes in a seat, and the method comprises the steps: obtaining video data and audio data in a cabin, and judging whether mosquitoes exist in the cabin or not based on the video data and the audio data; if yes, determining a mosquito position based on the video data, and extracting and collecting mosquito trapping gas in a preset range of the mosquito position; the cabin is controlled to be in a closed state, an air conditioner in the cabin is started to be in a refrigeration and dehumidification mode until the temperature and humidity in the cabin reach target threshold values, and the air conditioner is closed; releasing the insect trapping gas at a window of the cabin, and acquiring a mosquito movement track at the window in real time; and starting a gas release device based on the mosquito movement track so as to repel mosquitoes out of the vehicle. Therefore, efficient and accurate targeted mosquito trapping is achieved, full automation and intelligence of the mosquito repelling process are achieved, and user experience and driving safety are remarkably improved.