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243results about How to "System stability" patented technology

Preparation method of micro-emulsion absorption liquid used for processing organic exhaust gas

The invention relates to a preparation method of an organic exhaust gas micro-emulsion absorption liquid, and a method for applying the micro-emulsion absorption liquid for cleaning industrial organic exhaust gas comprising benzene, toluene, xylene, and the like. The invention belongs to the technical field of atmosphere pollution control. The absorption liquid is prepared from the components of, by mass, 80-90% of water, 0.5-3% of a surfactant, 7-19.5% of a coupling agent, and 0.02-0.06% of an auxiliary agent. The surfactant is sufficiently mixed with water, such that a surfactant solution is obtained; the auxiliary agent is dissolved in water, such that an auxiliary agent solution is obtained; the two solutions are combined and uniformly mixed; and the coupling agent is added, and the obtained solution is stirred, such that the organic exhaust gas micro-emulsion absorption liquid is obtained. The organic exhaust gas micro-emulsion absorption liquid is suitable to be used for controlling exhaust gas containing benzene-series volatiles, and has the advantages of convenient raw material source, low cost, mild and stable property, low toxicity, environment-friendliness, no absorption tower corrosion or blocking phenomena, no severe influence to human health, high removal rate to organic exhaust gas, no need of pretreatment upon exhaust gas, and low investment and running cost. Saturated absorption liquid and absorbed organics can be recycled, such that waste can be turned useful.
Owner:GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI

Graphene-modified conductive silver paste and preparation method thereof

The invention provides a graphene-modified conductive silver paste and a preparation method thereof. The graphene-modified conductive silver paste mainly comprises silver nanowires, graphene materials, a binder and a solvent. The graphene materials comprise one or a combination of at least two materials selected from graphene, a graphene nanosheet, biomass graphene or graphene oxide. According to the technical scheme of the invention, the silver nanowires and the graphene materials are adopted together as an electrically conductive agent, and the silver nanowires are filled into gaps among graphene material sheet layers. Therefore, the graphene material sheet layers are connected in series through the silver nanowires, and the above two parts play a synergistic effect to realize the conductive performance. Meanwhile, the graphene materials are covered on the surfaces of the silver nanowires, so that the oxidation of the silver nanowires is avoided. The system stability and the stable exertion of the conductive performance are better ensured. Moreover, by means of the binder and other components, the adhesive force of the system is improved obviously. The printability of the conductive silver paste is improved.
Owner:SHANDONG SHENGQUAN NEW MATERIALS CO LTD

Copper-manganese aqueous secondary battery based on deposition/dissolution reaction on positive and negative poles

The invention belongs to the technical field of electrochemistry and particularly provides a copper-manganese aqueous secondary battery based on deposition/dissolution reaction on positive and negative poles. The battery system specifically comprises a negative current collector, a positive current collector, an aqueous electrolyte containing bivalent copper ions and bivalent manganese ions as well as a porous separator for separating the positive and negative poles. When the battery is charged, the bivalent manganese ions in a positive pole area lose electrons and are oxidized into solid manganese dioxide, solid manganese dioxide is deposited on the positive current collector, and the copper ions in a negative pole area gain electrons and are reduced into metal copper, and metal copper isdeposited on the negative current collector; during discharging, manganese dioxide on the positive pole gain the electrons and is reduced into bivalent manganese ions, the bivalent manganese ions aredissolved in the electrolyte, meanwhile, copper on the negative pole releases electrons and is oxidized into bivalent copper ions, and the bivalent copper ions are dissolved in the electrolyte. The battery has the advantages of ultrahigh power density, ultra-long cycle life, high safety and low toxicity, and can be widely applied to the fields of large energy storage and the like.
Owner:FUDAN UNIV

Control method and system for opening degree of electronic expansion valve, and electrical equipment

The invention relates to a control method and system for the opening degree of an electronic expansion valve, and electrical equipment. The control method comprises the following steps: the opening degree of the electronic expansion valve is obtained according to compressor performances and required working conditions of operation; the electronic expansion valve is opened according to pre-opening degree, and a preset time is kept; when the preset time is reached, whether pre-opening degree adjusting conditions are met or not is judged, if the pre-opening degree adjusting conditions are met, adjustment and control are performed on the pre-opening degree of the electronic expansion valve according to preset rules until a pre-opening degree exit condition is met, and the electronic expansion valve is controlled for automatic adjustment; if the pre-opening degree adjusting conditions are not met, the electronic expansion valve is directly controlled for automatic adjustment. According to the method provided by the invention, in the starting of a machine set, the system is enabled to be stable as fast as possible, and unnecessary fluctuations are reduced, so as to enable the machine set to be transited into a stable state smoothly.
Owner:CHONGQING MIDEA GENERAL REFRIGERATING EQUIP +1

Inorganic-organic hybrid super-hydrophilic self-cleaning coating and production method thereof

The invention discloses an inorganic-organic hybrid super-hydrophilic self-cleaning coating and a production method thereof. The inorganic-organic hybrid super-hydrophilic self-cleaning coating is prepared from the following raw materials in percentage by weight: 60-90% of a solvent, 5-20% of a compound binder, 3-10% of a curing agent and 1-10% of a functional material. By adopting an inorganic-organic hybrid process, the inorganic-organic hybrid super-hydrophilic self-cleaning coating which is excellent in various performances such as hydrophilicity, dust resistance, pollution prevention, mildew resistance, weather resistance and durability is prepared. The coating is coated on the surface of a base material to form a concave-convex film of a micro-nano structure, so that the surface of the base material obtains the functions of hydrophilicity, dust resistance, pollution prevention, self-cleaning property and the like. The coating disclosed by the invention is suitable for large-area construction, has the advantages of high film forming hardness, high self-cleaning property, good wear resistance and good durability, and can be applied to surfaces of building external walls, glass, tiles, marbles, artificial stones, plastic, aluminum sheets, displays, walls and the like.
Owner:NANJING MISURFACE NEW MATERIAL TECH

Long-acting mixed fluorocarbon surfactant treating agent for improving condensate gas reservoir recovery efficiency and application of mixed fluorocarbon surfactant treating agent

The invention relates to a long-acting mixed fluorocarbon surfactant treating agent for improving the condensate gas reservoir recovery efficiency and application of mixed fluorocarbon surfactant treating agent. The mixed fluorocarbon surfactant treating agent comprises the following components in parts by weight: 0.05-0.3% of nonionic fluorocarbon surfactant, 0.05-0.3% of zwitter-ion fluorocarbon surfactant, 0.05-0.3% of nonionic hydrocarbon surfactant, 5-30% of alcohol, and the balance of water. The mixed fluorocarbon surfactant treating agent is capable of forming a compact adsorption film on the rock surface to construct a good airflow channel, the gas phase permeability of a stratum is improved, the displacement efficiency of the gas drive is obviously improved, and the validity is long. The invention further provides the application of the mixed fluorocarbon surfactant treating agent, the mixed fluorocarbon surfactant treating agent is applied to the condensate gas reservoir, the water blocking is prevented, the recovery efficiency is improved, the injection amount injected into rock core or stratum is 0.2-0.4PV, and the gas drive recovery rate can be improved to 40-78% under different temperature.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Production method and production system for vanadium pentoxide

The invention discloses a production method and a production system for vanadium pentoxide. The production method comprises the following steps of breaking industrial ammonium vanadate filter cakes and then continuously adding the industrial ammonium vanadate filter cakes into drying equipment and drying by using high-temperature gas; enabling the dried ammonium vanadate to enter calcinating equipment for deaminizing oxidation to obtain mixer of powder vanadium pentoxide or vanadium oxide; and enabling the mixer of the powder vanadium pentoxide or vanadium oxide to enter melting equipment for melting and casting pieces to obtain flaky vanadium pentoxide. According to the production method, drying for dehydration, calcinating for deaminizing and melting and piece casing processes of ammonium polyvanadate or ammonium metavanadate are respectively operated in three sets of equipment; the temperature, the furnace charge stay time and oxidation supply atmosphere (hot air) can be effectively controlled according to different function phases of drying, deaminizing and oxidizing and optimal conditions, and thus each function phase is operated under the optimal condition and further stability, high quality and high yield are achieved. The production method can be used for producing flaky and powder vanadium pentoxide and the yield of metal vanadium is respectively greater than 99 percent.
Owner:HEBEI IRON AND STEEL

Brain-computer integrated intelligent control method and technology of unmanned aerial vehicle

The invention discloses a brain-computer integrated intelligent control method and technology of an unmanned aerial vehicle. A brain-computer integrated system comprises a visual stimulation inductionmodule, a real-time picture back-transmission module, an electroencephalogram collecting device, multiple feature EEG processing modules, a brain-computer communication module, the unmanned aerial vehicle and an airborne single-chip computer module. No body gesture or language is needed by an experimental worker to achieve the control of multiple motions of the unmanned aerial vehicle. The EEG ofthe experimental worker is collected by using an electroencephalogram detecting device, electroencephalogram features comprise steady-state visual stimulation and imaging motions, and the steady-state visual stimulation and the imaging motions are switched by blinking eyes. The EEG is converted into a control instruction after preprocessing, feature extraction and classifying recognizing are conducted on the EEG in a processing module, the control instruction is transmitted to the airborne single-chip computer module of the unmanned aerial vehicle through a communication system, the flight situation of the unmanned aerial vehicle is observed by the experimental worker through a global camera, flight routes are planned autonomously, and the unmanned aerial vehicle is finally controlled tocomplete preset flight missions. By means of the multi-mode brain-computer integrated system, flexible control of the unmanned aerial vehicle by a brain is achieved, and the defects of existing unmanned aerial control manners are effectively compensated.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Preparation method of algal polysaccharides toner

The invention relates to a preparation method of an algal polysaccharides toner, comprising the following steps of: putting cleaned grateloupia filicina into an oven for baking, pulverizing by a universal pulverizer, sieving; then adding double distilled water according to a solid-to-liquid ratio, putting into a water bath of 100 DEG C, staying for a period of time in the boiled water bath; centrifuging by a high-speed centrifuge, taking the supernatant, performing rotary evaporation by a rotary evaporator until the supernatant is 1/4 of the original volume, adding absolute ethyl alcohol, standing in a refrigerator of 4 DEG C; then centrifuging by the high-speed centrifuge again, taking the precipitate, adding a proper amount of water for dissolving, evaporating by the rotary evaporator to remove the ethyl alcohol to obtain the algal polysaccharides extracting solution; and stirring the algal polysaccharides extracting solution, double distilled water, rose essence and a preservative imidazolidinyl urea uniformly to obtain the natural algal polysaccharides toner. The algal polysaccharides toner has the advantages of simple process, easiness of control, stable system, no toxic side effect, efficacies of moistening, anti-wrinkling, whitening, diminishing inflammation, promoting tissue regeneration, resisting aging and the like, and broad market prospect.
Owner:GUANGDONG OCEAN UNIVERSITY
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