14826 results about "Inert gas" patented technology

The invention belongs to the technical field of polyester recycling, and relates to a method for efficiently producing terephthalate by depolymerizing waste polyester through carbonic ester, which comprises the following steps: depolymerizing waste polyester, carbonic ester and a catalyst under the protection of nitrogen or inert gas and solvent-free conditions, a is more than one of zinc acetate, sodium acetate, potassium chloride, lithium chloride, potassium carbonate, sodium carbonate, ethylene glycol antimony, antimony trioxide, antimony acetate, ethylene glycol titanium and titanium dioxide, and B is sodium ethoxide. The method solves the problems of limited conversion of the waste polyester chemical recovery monomer and long production process in the prior art, obviously improves the catalytic efficiency and the depolymerization speed through the compound catalyst, simplifies the depolymerization process, reduces the energy consumption, and is beneficial to industrial application.

The invention relates to the technical field of lithium ion battery diaphragm preparation, in particular to modified aramid diaphragm coating slurry, a battery diaphragm and a preparation method thereof.The preparation method of the modified aramid diaphragm coating slurry comprises the steps that under protection of inert gas, a cosolvent is dissolved into a polymerization solvent, and a solvent-cosolvent mixed system is obtained; adding p-phenylenediamine into the solvent-cosolvent mixed system, and dissolving to obtain a mixed solution; adding paraphthaloyl chloride into the mixed solution in batches, controlling the temperature of the system, and carrying out polymerization reaction, so as to obtain the modified aramid diaphragm coating slurry after the polymerization reaction is finished, in the preparation method, a third monomer is also added to participate in the polymerization reaction, and the third monomer is at least one of an amine third monomer and an acyl chloride third monomer. The modified aramid diaphragm coating slurry can be used for preparing a battery diaphragm with heat resistance and air permeability, and the process is simple.

The invention relates to the technical field of aero-engine welding, in particular to a clamp and method for a combustion chamber casing welding mounting base. The clamp comprises a bottom plate and a positioning ring arranged on the top surface of the bottom plate; a positioning spigot is formed in the top surface of the positioning ring and is used for positioning an inner hole of a flange edge at the lower end of the combustion chamber casing; a plurality of pressing hooks are uniformly distributed on the positioning ring close to the edge; a plurality of supporting columns are arranged on the top face of the bottom plate, and a jacking air injection device is arranged on the top of each supporting column and used for jacking an inner molded surface, corresponding to the welding portion of the mounting base, of a barrel of the combustion chamber casing and injecting inert gas to the inner molded surface of the jacking portion. By means of the clamp and the method, deformation of the combustion chamber casing welding installation base is effectively controlled, the stability of the product welding quality is improved, the welding clamp is easy and convenient to operate, the welding method is efficient, and the labor intensity of operators is relieved.

The invention relates to the technical field of lithium iron phosphate production, and discloses a carbon-coated titanium-doped lithium iron phosphate positive electrode material and a preparation method thereof.The preparation method comprises the following steps that 1, a ferrous solution and a phosphorus source solution are mixed in proportion, dopamine hydrochloride is added, a pH regulator is dropwise added in the stirring state, the pH of the solution is adjusted to 4.0-5.5, a reaction is conducted, a titanium source solution is added, and a reaction solution is obtained; after uniformly stirring, continuously dropwise adding a pH regulator to regulate the pH value of the solution to 5.5-6.5; the iron phosphate octahydrate coated with the titanium-embedded polydopamine is obtained; 2) calcining the titanium-embedded polydopamine-coated ferrous phosphate octahydrate in an inert gas atmosphere to obtain carbon-coated titanium-doped anhydrous ferrous phosphate; 3) mixing the carbon-coated titanium-doped anhydrous ferrous phosphate with lithium phosphate and a carbon source, ball-milling, mixing, spray-drying and calcining to obtain a carbon-coated titanium-doped lithium iron phosphate positive electrode material; the synthesis process is simple, and energy consumption is reduced.

The invention provides an asphalt-based closed-pore carbon material, a preparation method thereof and a sodium ion battery, the preparation method of the asphalt-based closed-pore carbon material comprises the following steps: S1, pre-oxidizing an asphalt-based carbon source in an oxidizing gas atmosphere at 200-350 DEG C to obtain a pre-oxidized product; s2, carrying out low-temperature carbonization on the pre-oxidized product in an inert atmosphere at 300-800 DEG C to obtain a first precursor; s3, performing gas activation on the first precursor in an activated gas atmosphere to obtain a second precursor; s4, performing chemical activation on the second precursor by adopting a chemical activating agent to obtain a porous carbon material; s5, dipping the porous carbon material in an asphalt solution, and then separating and drying to obtain a blank; and S6, carbonizing the blank under the protection of inert gas to obtain the asphalt-based closed-cell carbon material. The asphalt-based closed-cell carbon material has the advantages of high capacity, high first efficiency and high stable circularity.

The invention discloses a box-type energy storage substation operation control method and system, a product and a medium. The method comprises the following steps: collecting gas concentration data in the box-type energy storage substation, comparing the gas concentration data with a preset threshold value, and judging whether gas leakage exists or not; if yes, recording related data, and detecting an insulation resistance value of the electrical contact component; based on the gas concentration data and the leakage time of the leakage area, judging whether a chemical reaction triggering condition is met or not; if yes, inert gas is sprayed to the leakage area; if the insulation resistance value is lower than a safety threshold value, electromagnetic isolation is carried out on the leakage area, and distribution of the electric load to the related energy storage unit is stopped; then, current is applied to the electrical contact component at a preset frequency, and an insulating property value is detected; when the insulating property is restored to within the safe range, the electrical load is redistributed to the leakage region. By implementing the technical scheme, the safety of the fault area after the insulation performance is reduced due to gas leakage in the operation process of the box-type energy storage substation is improved.

The invention discloses a direct-current flame-retardant tensile cable for a charging pile, and relates to the technical field of cables, the direct-current flame-retardant tensile cable comprises a conductor, the outer side of the conductor is wrapped with an insulating layer, the outer side of the insulating layer is wrapped with a shielding layer, the outer side of the shielding layer is provided with a protective layer, the direct-current flame-retardant tensile cable further comprises a flame-retardant assembly and a tensile assembly, and the flame-retardant assembly comprises a plurality of fixing pieces; a fire extinguishing chamber is formed by every two adjacent partition pieces, the fixing piece, the protective layer and the shielding layer, and the tensile assembly comprises a plurality of tensile pieces. Through arrangement of the flame-retardant pieces, when a fire breaks out in the fire extinguishing chamber, a fire breakout point can be covered to form a sealed space, and therefore the good flame-retardant effect is achieved; and through cooperation of the tensile member, the flame-retardant member, the telescopic air bag and inert gas in the fire extinguishing chamber, the tensile capability of the tensile member can be enhanced, so that the problem of poor flame-retardant and tensile capability of the existing charging pile cable is effectively solved.

The invention discloses an SF6 degradation device and method based on gas-liquid two-phase dielectric barrier discharge plasma. The device comprises a gas inlet control module, a dielectric barrier discharge reaction module, an alkaline solution tank and an alkaline solution supply module, the gas inlet control module comprises a gas distributing and mixing unit, an SF6 gas cylinder and an inert gas cylinder, wherein the SF6 gas cylinder and the inert gas cylinder are connected with the gas distributing and mixing unit. The dielectric barrier discharge reaction module comprises a dielectric barrier reactor and a plasma power supply externally connected to the dielectric barrier reactor, and the dielectric barrier reactor is used for exciting inert gas in the mixed gas into plasma by using an electric field and degrading SF6 gas in the mixed gas based on the electric field and the plasma to obtain low-fluorine sulfide. The plasma is utilized to excite the alkaline solution to generate hydroxyl ions, the low-fluorine sulfide is degraded based on the hydroxyl ions, and degraded tail gas is obtained; and the alkaline solution tank is connected with a gas outlet of the dielectric barrier reactor. According to the invention, efficient harmless degradation of SF6 can be realized.

The invention discloses dust removal equipment for dust explosion prevention and a dust removal method thereof, and relates to the field of dust removal equipment.The dust removal equipment comprises a dust removal box, a plurality of dust removal cloth bags in the dust removal box and a treatment mechanism for dust explosion prevention, the treatment mechanism is composed of a gas mixing assembly, a scraping assembly and a vibration assembly, and a filter bag top frame is connected with a vibration pipe frame through the vibration assembly; the gas mixing assembly is communicated with the dust removal box through a gas inlet pipe, the gas mixing assembly is used for mixing dusty gas and inert gas and preliminarily removing large-particle dust, and the scraping assembly is arranged below the gas mixing assembly and scrapes the filtered large-particle dust; and the vibration assembly is used for periodically vibrating the dust removal cloth bag after the scraping assembly is detached so as to remove fine dust attached to the inner wall of the dust removal cloth bag. Inert gas is introduced and fully mixed before entering the dust removal box, and primary large-particle dust is filtered, so that the oxygen concentration is reduced, and dust explosion is effectively prevented.

A molten salt reactor system may produce fission products, such as molybdenum-99, which may be extracted by an extraction system. The extraction system may be configured to sparge the molten fuel salt with an inert gas to dislodge gaseous fission products from the molten fuel salt, so that the gaseous fission products flow through an off-gas outlet into a gas transfer assembly. The example extraction system may also include introducing a gaseous halogenating agent to prevent the fission products from depositing on a pipe surface of the gas transfer assembly. The gaseous fission products may flow from the gas transfer assembly to a carboy containing an aqueous solution, to process and / or filter the fission products. The resulting solution containing processed fission products in the carboy may be further distilled into final, usable products.

The invention discloses a vacuum cup laser welding device, and belongs to the technical field of laser welding, the vacuum cup laser welding device comprises a processing table, the top of the processing table is connected with a base box, and the top of the base box is provided with a synchronous clamping assembly. According to the device, the air curtain assembly is arranged, a continuous and uniform annular laminar flow air curtain is formed by means of the nozzle array evenly distributed in the circumferential direction, a stable inert gas protection environment is formed in a welding area, the oxidation probability of a molten pool is remarkably reduced, meanwhile, the air curtain structure optimally designed through fluid dynamics can effectively disperse welding smoke dust, and the welding quality is improved. By means of a mechanical structure, the angle of the direction adjusting pipe can be accurately adjusted, the coverage range of the air curtain can be flexibly adjusted, accordingly, the vacuum cup body with different specifications can be adapted, possible protection blind areas are eliminated, and the service life of the vacuum cup body is prolonged. And the optimal action angle between the welding protection airflow and the workpiece surface is always kept.

Systems, assemblies, and methods to enhance extraction of pyrophoric materials from a refinery apparatus may include supplying a pressurized fluid to a plurality of vacuum generators, and generating, via the plurality of vacuum generators using the pressurized fluid, a vacuum flow. A manifold may provide a flow path for the vacuum flow, and pyrophoric material may be extracted from the refinery apparatus via the vacuum flow to a material collector through which the vacuum flow passes, depositing at least a portion of the extracted pyrophoric material in the material collector. One or more of inert gas or a cooling medium may be supplied to the material collector.

The invention belongs to the technical field of oil and gas field development, and particularly relates to a CO2 thickening agent for supercritical CO2 oil displacement and a preparation method of the CO2 thickening agent. The preparation method of the CO2 thickening agent for supercritical CO2 oil displacement comprises the following steps: (1) mixing a maleic anhydride compound and a styrene compound, dissolving in water, introducing inert gas, and heating; (2) slowly dropwise adding a mixed solution of a vinyl acetate compound and an initiator, and cooling after the reaction is finished; and (3) filtering, washing a solid phase by using an anhydrous alcohol substance, drying, and grinding to obtain a thickening agent product. The supercritical CO2 thickened by the thickening agent prepared by the invention can effectively slow down the viscous fingering phenomenon in the displacement process and improve the CO2 sweep efficiency, thereby improving the crude oil recovery rate.

The invention discloses an intelligent safety monitoring method and system for coal mine excavation, and belongs to the technical field of coal mine safety, and the method specifically comprises the steps: deploying a plurality of adaptive sensing nodes in an excavation area, each node comprising an environment state collection unit and an equipment vibration collection unit, and collecting environment data and mechanical vibration waveforms respectively; then, according to the position of the mining machine and the tunnel structure change, node physical connection is adjusted to form a dynamic topology network, and when mechanical movement exceeds a threshold value, adjacent nodes are subjected to high-density monitoring; then, synchronously generating a coupling data stream according to the collected data timestamps, inputting the coupling data stream into a pre-constructed model, and predicting the overlap ratio of mechanical vibration abnormity and a target gas accumulation area space; when the overlap ratio exceeds a critical value, an emergency response is triggered, the speed is reduced firstly, inert gas is released, and power is cut off if set duration is continued; and finally, reversely correcting surrounding rock stress parameters in the model according to emergency data. According to the invention, the accuracy and response timeliness of early warning of coal mine disasters are improved.

The invention discloses a preparation method and a production system of phosphorus trifluoride, and belongs to the technical field of preparation of phosphorus trifluoride. Phosphorus trichloride and first mixed gas are continuously introduced into a reactor, the first mixed gas comprises anhydrous hydrogen fluoride and inert gas, phosphorus trichloride and anhydrous hydrogen fluoride in the first mixed gas are subjected to a double decomposition reaction in the reactor, and intermediate gas containing phosphorus trifluoride is generated. Collecting intermediate gas discharged from the reactor, and rectifying and purifying the intermediate gas to obtain a phosphorus trifluoride product. The inert gas carries anhydrous hydrogen fluoride and phosphorus trichloride to generate double decomposition reaction to generate phosphorus trifluoride, and the inert gas can dilute the concentration of the raw material gas anhydrous hydrogen fluoride participating in the reaction and also can take away heat generated by the reaction, so that the temperature of the reactor is more stable, and continuous production of phosphorus trifluoride is realized.

The invention provides a low-concentration chemical-physical coupling intelligent continuous porous carbon production method and system. The method comprises the following steps: pretreatment: crushing a carbon source to obtain a carbon precursor; carbonizing: heating and carbonizing the carbon precursor in a fluidized bed reactor to obtain a carbonized product; chemical activation: dipping the carbonized product in a chemical activator solution to obtain a chemical activated product, and drying the chemical activated product; physical activation: mixing a reaction gas and an inert gas as an activation gas, placing the chemical activation product in the activation gas, and performing gas activation at a preset temperature to obtain a physical activation product; and post-processing. By coupling chemical activation with physical activation, the concentration of a chemical activation reagent can be reduced, and the wastewater amount and the pollutant concentration after reaction are reduced by reducing the dosage of the reagent, so that the wastewater treatment process is simplified, the treatment agent and energy consumption is reduced, and the treatment cost is reduced.

The invention belongs to the technical field of titanium alloy materials and additive manufacturing, and relates to a high-performance titanium-based composite material based on additive manufacturing and a preparation method of the high-performance titanium-based composite material. The preparation method comprises the following steps that titanium alloy powder subjected to vacuum drying treatment and titanium-coated reinforced phase nanoparticles are added into a ball mill to be subjected to ball milling treatment in the inert gas atmosphere, and evenly-mixed composite powder is obtained; and after the composite powder in the first step is subjected to vacuum drying, the composite powder is evenly laid on a forming base plate through additive manufacturing equipment, the composite powder is molten layer by layer through a heat source, and the high-performance titanium-based composite material is obtained after solidification. According to the titanium-based composite material and the preparation method thereof, TiB generated by the in-situ reaction of the B element in the titanium-coated reinforced phase nanoparticles and the Ti element in selective laser melting forming is adopted, the TiB is uniformly dispersed and distributed in a titanium alloy matrix, the prepared titanium-based composite material has good density, the strength, hardness and other properties of the material are obviously improved, and the comprehensive mechanical property is excellent.

The invention relates to duplex stainless steel powder for laser additive manufacturing and a preparation method and application thereof, and belongs to the technical field of nitrogen-containing stainless steel powder preparation, the duplex stainless steel powder comprises, by mass, 0.09-0.20% of C, 5.00-15.00% of Mn, 1.00-5.00% of Mo, 5.00-15.00% of Ni, 10.00-30.00% of Cr, 0.10-0.40% of N, less than or equal to 0.02% of S, less than or equal to 0.02% of P, and the balance Fe. According to the method, vacuum induction melting and high-pressure inert gas atomization methods are utilized, the conditions such as the adding time of the mixture of the metal manganese particles and the nitrogen-containing alloy particles are controlled, and therefore the purpose of controlling the nitrogen content in the alloy powder is achieved.

The invention discloses a preparation method of a nitrogen-phosphorus-sulfur triple-doped hard carbon negative electrode material. The preparation method comprises the following steps: crushing biomass rich in protein, sieving and collecting; the crushed biomass is soaked with a phosphorus source solution, and solid matter is dried after separation; introducing small organic molecule gas into the dried biomass under the protection of inert gas, performing high-temperature pyrolysis to obtain a carbon material, and treating and replacing oxygen-containing functional groups by using nitrogen-containing, phosphorus-containing and sulfur-containing gas; and heating and washing the obtained carbon material by using a strong alkali solution to remove redundant phosphorus source, washing to be neutral, separating, and drying to obtain the nitrogen-phosphorus-sulfur triple-doped hard carbon negative electrode material. The material has an adjustable special hole structure due to cracking and carbonization of small organic molecule gas in pores, affinity of sodium ions and the material is improved due to doping of nitrogen, phosphorus and sulfur, hard carbon interlayer spacing is enlarged due to large atomic radiuses of phosphorus and sulfur, intercalation and deintercalation of the sodium ions are facilitated, sodium modification kinetics is improved, electrode reversibility is improved, and the performance of the electrode is improved. And higher coulombic efficiency is obtained.

The invention provides a novel method for synthesizing 1, 4-bis (4-fluorobenzoyl) benzene, which belongs to the technical field of aromatic halide production, and comprises the following steps: under inert gas, adding supported solid acid and fluorobenzene into a reaction container; the preparation method comprises the following steps: dropwise adding paraphthaloyl chloride into a reaction container, and reacting at 5-30 DEG C for 1-8 hours to obtain 1, 4-bis (4-fluorobenzoyl) benzene; carrying out purification treatment on the reaction system to obtain 1, 4-bis (4-fluorobenzoyl) benzene with the purity of 97.2% or above; the supported solid acid is composed of a carrier and Lewis acid; lewis acid is selected from any one of aluminum chloride, ferric chloride, titanium tetrachloride and zinc chloride; the carrier is selected from any one of an HY molecular sieve, an Hbeta molecular sieve, a ZSM-5 molecular sieve, acid-treated K10 montmorillonite, aluminum oxide and an MCM-41 molecular sieve. The reaction system condition is mild, the product purity is larger than or equal to 97.2%, after the condition is optimized, the purity is larger than 99.5%, the product and the catalyst can be separated through filtering, waste salt is avoided, the catalyst can be recycled, and the reaction is green and environmentally friendly.

An apparatus and method for cleaning or etching a molybdenum film or a molybdenum nitride film from an interior of a reaction chamber in a reaction system are disclosed. A remote plasma unit is utilized to activate a halide precursor mixed with an inert gas source to form a radical gas. The radical gas reacts with the molybdenum film or the molybdenum nitride film to form a by-product that is removed from the interior of the reaction chamber by a purge gas.

The invention belongs to but is not limited to the technical field of aluminum alloy preparation, and discloses a high-plasticity aluminum alloy prepared from secondary aluminum and a preparation method, high-quality secondary aluminum waste is selected, and obvious impurities are removed; carrying out chemical or mechanical cleaning on the secondary aluminum, and sorting; the pretreated secondary aluminum waste is added into a smelting furnace to be smelted; a purifying agent is added for melt purification; the melt is further purified through inert gas stirring and standing; adding a proper amount of alloy elements into the melt; under the protection of inert gas, uniformly stirring the melt; casting the melt into a cast ingot by adopting a semi-continuous casting or continuous casting process; controlling the cooling speed; carrying out homogenizing heat treatment on the cast ingot to eliminate composition segregation in the cast ingot; and extruding and rolling to obtain the high-plasticity aluminum alloy material. According to the method, the purity of the aluminum alloy is improved, the performance uniformity is enhanced, and the aluminum alloy material with high plasticity and excellent mechanical performance is obtained and is suitable for industrial application with high requirements.

The invention relates to the technical field of organic synthesis, and discloses a preparation method of bromo-pyrrole nitrile. The method comprises the following steps: (1) mixing p-chlorophenylglycine, acetonitrile, trifluoroacetic acid and a catalyst, then dropwise adding acyl chloride and carrying out acylation reaction, and after the reaction is completed, purging with an inert gas; (2) under the inert gas, mixing the mixture obtained in the step (1) with inorganic salt, then dropwise adding 2-chloroacrylonitrile, carrying out cyclization reaction, and separating a liquid phase from the obtained mixture; and (3) under the inert gas, mixing the liquid phase obtained in the step (2), hydrobromic acid and hydrogen peroxide, carrying out a bromination reaction, then extracting with acetonitrile to obtain an acetonitrile layer, then removing the acetonitrile, and then carrying out cooling crystallization to obtain the bromo-pyrrolenitrile. According to the technical scheme, the reaction yield is high, different solvents do not need to be frequently replaced, and the solvents can be recycled.

The invention discloses a chitosan modified lithium iron phosphate and carbon composite positive electrode material and a preparation method thereof.The preparation method comprises the steps that 1, lithium hydroxide, phosphoric acid and ferrous sulfate heptahydrate are mixed to prepare a uniform and stable solution, and a lithium iron phosphate precursor is prepared through a solvothermal method; step 2, dissolving chitosan in an acetic acid aqueous solution, and magnetically stirring under a water bath condition until the chitosan is completely dissolved to prepare a chitosan solution; and 3, adding the lithium iron phosphate precursor into a chitosan solution, uniformly mixing, carrying out ball milling and freeze drying, and carrying out high-temperature carbonization treatment in an inert gas to obtain the chitosan modified lithium iron phosphate and carbon composite positive electrode material. The method is simple to operate, low in cost and uniform in product particle size distribution.

The invention relates to the technical field of organic chemical synthesis, in particular to a preparation method of 3, 4 '-diaminodiphenyl ether.The preparation method comprises the steps that S1, under inert gas and in a first solvent, m-dinitrobenzene and p-acetamidophenol are subjected to a heating reaction under the condition of a weak base catalyst, and 3-nitro-4-acetamido diphenyl ether is prepared; s2, in a second solvent, the 3-nitro-4-acetamido diphenyl ether is subjected to a hydrogenation reduction reaction, and 3-amino-4-acetamido diphenyl ether is prepared; and S3, dissolving the 3-amino-4-acetaminodiphenyl ether in an alcohol solvent system, adding an aqueous solution of alkali, controlling the reaction temperature, carrying out a hydrolysis reaction, and after the reaction is finished, carrying out post-treatment to obtain the 3, 4 '-diaminodiphenyl ether. The preparation method provided by the invention has the advantages of easily available raw materials, low price, good selectivity and high product yield, and is more suitable for industrial production by comprehensively considering economical efficiency and safety.

The invention provides a method and system for detecting the content of platinum, palladium and rhodium in an automobile exhaust purification catalyst and application, and relates to the technical field of automobile exhaust purification, the method comprises the following steps: crushing, grinding, sieving, performing microwave acidolysis, neutralizing, washing and drying a catalyst sample to obtain dry filter residues; a trapping agent and a fluxing agent are added into the dry filter residues, constant-temperature heating is conducted in inert gas, then cooling forming is conducted, and an alloy button is obtained; blowing ash on the alloy, then adding mixed acid into the alloy, heating the alloy in a water bath at 95 DEG C for 25-35 minutes to obtain a dissolved solution, then adding a masking agent into the dissolved solution, and oscillating to obtain a solution to be detected; and filtering the liquid to be detected, fixing the volume and detecting. According to the method, precise quantification of trace platinum, palladium and rhodium in the complex matrix catalyst can be realized, and the method has a relatively high recovery rate; meanwhile, pollution elements are prevented from being used, and the method is green and efficient and better conforms to the concept of green chemistry.

According to examples, an optical lens assembly for head-mount display (HMD) devices may include an optical lens configuration with a first optical element and a second optical element. The first optical element and the second optical element may be affixed together along a peripheral edge to form a gap between the two optical elements and may compensate chromatic dispersion characteristics. The optical lens configuration may also include a reflective polarizer layer, a quarter wave layer, and a semi-transparent mirror provided on selected surfaces of the optical elements. In some examples, the gap may be filled with air or an inert gas.

The invention relates to the technical field of safety and environmental protection, in particular to a negative-pressure circulating explosion-control dust removal method suitable for combustible dust places, which comprises the following steps: firstly, sealing a bin body and injecting carbon dioxide-nitrogen inert gas to generate a low-oxygen environment; then, a flow guide angle-adjustable cyclone separator, a dielectric barrier discharge plasma reactor and a waste heat thermo-acoustic transducer are driven to cooperatively capture dust, and sound node amplitude synthesis capture data are obtained through compressed sensing of a microphone; inputting the environment data and the capture data into a reinforcement learning process containing a micro-thermochemistry model, and outputting instructions for adjusting negative pressure pulse, inert flow, sound field intensity and cyclone geometry; in combination with distributed radio frequency imaging data, an adversarial digital twinborn model is generated to predict explosion free energy, and automatic rollback or shutdown is carried out when the explosion free energy exceeds a threshold, so that a safe, efficient and low-energy-consumption closed loop is formed.

The invention discloses a high-temperature and high-pressure multifunctional integrated shock tube test system, belongs to the technical field of explosion and impact dynamics tests, and aims at solving the problem that an existing shock tube is usually single in function and is only used for a simulation test of a certain function. The high-pressure section and the low-pressure section of the shock tube are both made of high-temperature-resistant nickel-based alloy, an induction heater is adopted for heating, high-pressure inert gas is filled into the high-pressure section through pressure gradients of diaphragm sets with different layers of diaphragm clamping sections, high temperature and high pressure of the high-pressure section at the temperature of 20-900 DEG C and the pressure of 0.1-50 MPa are obtained, and the high-pressure shock tube has the advantages that the high-pressure shock tube is compact in structure and low in cost. The multifunctional integrated shock tube test system can be used for researching the crushing characteristics of rock materials under the conditions of different pressures, temperatures, water contents and the like, the damage characteristics of explosion shock waves in the air to a target piece and the impact damage characteristics of a high-speed projectile body. Effective methods and means are provided for related research, and the shock tube test technology and engineering application capability are expanded. The test system is easy to implement, low in cost and multipurpose.

The invention relates to the technical field of battery materials, in particular to a method for regulating and controlling a biomass-based hard carbon microstructure through vapor deposition, a biomass-based hard carbon negative electrode material and application of the biomass-based hard carbon negative electrode material. The method comprises the steps that biomass-based shells are subjected to pre-oxidation treatment to obtain pre-oxidized shells, and the pre-oxidized shells are subjected to heat treatment in an inert atmosphere containing organic molecules to obtain the biomass-based hard carbon negative electrode material. A hard carbon material precursor is obtained; and finally carrying out carbonization treatment on the hard carbon material precursor. Inert gas is used as carrier gas to be mixed with gaseous organic molecules, the atmosphere of high-temperature sintering of hard carbon is changed, and the organic molecules are deposited on the surface of a hard carbon precursor, so that a relatively ordered surface structure is controllably formed in the carbonization process of a lignin-rich fruit shell biomass base; hard carbon surface defects are modified to obtain the biomass-based hard carbon negative electrode active material, so that a solid electrolyte interface generated by the biomass-based hard carbon negative electrode active material in contact with an electrolyte in a charging and discharging process is thinner and has stable chemical properties, and the first-circle coulombic efficiency is improved on the premise of keeping high capacity.