17results about How to "Big cost advantage" patented technology

The invention provides an oxychloride solid electrolyte as well as a preparation method and application thereof, and belongs to the technical field of all-solid-state lithium battery materials. The chemical general formula of the oxychloride solid electrolyte disclosed by the invention is xLi2O-(1-y) ZrCl4-yAlCl3, wherein 0 lt; x is less than or equal to 3, 0lt; y < = 1. Compared with other solid electrolytes such as sulfides, halides, oxides and the like (the Young modulus mostly exceeds 20 GPa and even is higher than 100 GPa), the oxygen chloride solid electrolyte has lower Young modulus (not higher than 4 GPa); the all-solid-state lithium battery assembled by using the oxychloride solid electrolyte disclosed by the invention has excellent surface capacity and long cycle stability.

The invention relates to the field of electrochemical oxidation, and particularly discloses a preparation method of a co-doped modified Ti4O7 electrode, and the preparation method comprises the following steps: 1, mixing Ti4O7 powder, a metal source and a non-metal source, and carrying out ball milling to obtain mixed powder; and 2, adding a binder and an organic dispersant into the mixed powder, and carrying out ultrasonic treatment, heating and stirring, drying and sintering to obtain the co-doped modified Ti4O7 electrode. The co-doped modified Ti4O7 electrode prepared by the invention has excellent chlorine evolution and sterilization performance, and can be applied to purification treatment of wastewater containing ammonia nitrogen pollutants and long-acting maintenance of disinfection and sterilization of small water bodies such as circulating water, landscape water, ballast water and the like.

The invention provides an ultra-thin meta-aramid fibrid and a preparation method and application thereof, the preparation method comprises the following steps: (1) preparation of a meta-aramid resin solution: adding isophthaloyl dichloride and m-phenylenediamine into a solvent for polymerization reaction, neutralizing, filtering and diluting to obtain the meta-aramid resin solution; (2) preparation of meta-aramid fibrid: coating a substrate with the prepared meta-aramid resin solution to obtain an ultra-thin resin coating, allowing the ultra-thin resin coating to enter a coagulating bath along with the substrate to be coagulated and separated out to obtain an ultra-thin fiber layer, allowing the ultra-thin fiber layer to go out of the coagulating bath and then to be subjected to high-pressure hydraulic impact crushing, and then washing to obtain the meta-aramid fibrid. The ultra-thin meta-position aramid fiber fibrid is obtained. By adopting the preparation method provided by the invention, the ultra-thin meta-position aramid fibrid can be prepared, the thickness of the ultra-thin meta-position aramid fibrid is as low as 0.3-2 microns, the thickness and shape of the fibrid are regular and uniform, the membranous structure is rich, and the thickness size of the ultra-thin meta-position aramid fibrid can be accurately controlled.

The invention discloses a high-power electrochemical energy storage system, which comprises a two-layer physical architecture and a three-layer software architecture, and is characterized in that the two-layer physical architecture comprises a station control layer and an in-place layer; the station control layer comprises an intranet switch, a control network switch, and a prepositive server, an EMS server and a coordination controller which are respectively connected with the intranet switch; the in-situ layer comprises a plurality of energy storage units. Each energy storage unit comprises a box-type transformer, an in-situ switch, a data network switch, a BMS and a PCS, wherein the BMS and the PCS are connected with each other. The BMS, the PCS and the box-type transformer are respectively connected with the local switch; the local switch is connected with the data network switch; the coordination controller is connected with the PCS through the control network switch; the three-layer software architecture comprises a first layer, a second layer and a third layer; the BMS and the PCS are in the first layer, the prepositive server is in the second layer, and the EMS server is in the third layer. The method has the advantages of being low in complexity, high in real-time response speed, large in cost advantage, easy to maintain and the like.

The invention relates to a hardware current-limiting switching circuit and a dual-voltage output system. The dual-voltage output system comprises a main circuit and the hardware current-limiting switching circuit. The hardware current-limiting switching circuit comprises a current sampling unit, a current detection unit, a main control unit and a switching unit. The current sampling unit is configured to perform current sampling on the main circuit to obtain a current sampling value; the current detection unit is configured to trigger a protection signal according to a current sampling value; the main control unit is configured to trigger the control signal according to the protection signal; wherein two kinds of corresponding protection signals and control signals exist; the switching unit is configured to switch the current limiting output according to the control signal. Therefore, a set of hardware current limiting circuit and a peripheral circuit thereof are reduced, the hardware cost and the corresponding PCB area can be effectively reduced, the layout wiring is optimized, much interference is reduced, and the cost advantage is great. Meanwhile, compared with a scheme of detecting two current limiting signals, the scheme provided by the invention is simpler and more efficient, and the data processing is direct.

This invention relates to an industrial preparation method for 2-methylphenylacetic acid, comprising the following steps: under an inert solvent, 2-methylhalobenzene and malonate diester undergo a coupling reaction in the presence of a catalyst and base A to obtain compound one; compound one is hydrolyzed and decarboxylated under the presence of base B to prepare 2-methylphenylacetic acid; the chemical structural formula of compound one is: [formula missing], where R is a C1-C8 alkyl group. Compared with existing technologies, this invention uses inexpensive raw materials, is simple to operate, can react under normal pressure, has relatively mild conditions, is safe and environmentally friendly, and is easy to industrialize.

The present application belongs to the field of oil and gas field ground engineering, and discloses a new energy consumption method based on an electrically heated molten salt energy storage steam injection system. The method comprises obtaining real-time power data and predicted power data of photovoltaic and wind power generation, accessing the data to a molten salt electric heater control system, judging whether grid valley time electricity needs to be supplemented and performing corresponding processing, judging whether the existing power of the grid can achieve new energy consumption and performing corresponding processing, and can realize exploitation after new energy consumption. Compared with conventional technology, the present application has a great cost advantage. When the wind and light new energy generation capacity is strong, the green electricity generated by wind and light can be fully utilized to heat the molten salt without consuming grid electricity. At the same time, the carbon emission intensity of the heavy oil thermal recovery process can be effectively reduced, and the green transformation of heavy oil production is facilitated.

The present invention discloses a one-time cabling device and method for two or more pairs of shielded cables, wherein the cabling device comprises a flat longitudinal wrapping mold and a mold fixing block, the flat longitudinal wrapping mold comprises a mold base plate, a shielding tape curling guide mold and a forming tube, the end face of the mold base plate is fixedly connected with a shielding tape curling guide mold, the shielding tape curling guide mold comprises a straight base plate at the inlet end, a semicircular arc plate in the middle and a circular arc base plate at the outlet end, the two sides of the straight base plate are bent and extended with side guide plates, a straight side guide groove is formed between the side guide plate and the straight base plate, and the side guide plate is twisted and bent toward the outlet end to form a circular arc side guide plate integrated with the semicircular arc plate. The present invention has high production efficiency, and can complete twisting, longitudinal wrapping and cabling in one process, saving labor time cost, reducing the cost of cables, having great cost advantages, saving equipment investment, and the outer diameter of the finished cable can be made smaller and lighter.

The utility model provides a universal module high-voltage protection base, which belongs to the technical field of new energy automobile batteries, and is characterized in that on the basis of an original integrated injection-molded high-voltage protection base, the original integrated injection-molded high-voltage protection base is divided into an injection-molded high-voltage protection base body and a connecting piece of which the back is spot-welded with a welding nut; the number and the model of the welding nuts on the connecting piece can be changed according to actual conditions, the problems that an original high-voltage protection base on a new project cannot be used universally, a mold needs to be opened again, the mold cost and the product development cycle time are increased are avoided, meanwhile, the original mold development cost can be shared by the universality of the high-voltage protection base body, and a larger cost advantage is achieved.

The utility model belongs to the technical field of water treatment relates to a kind of domestic ceramic membrane purifier, including filter element, filter drum and two end caps, and the end cap of two ends is respectively provided with water inlet and water outlet and is connected with the porous channel in filter element, water outlet connected with the water purification channel outside filter element is provided on the filter drum, the both ends of the filter drum are fixed with connecting ring, the inner wall end portion of the connecting ring away from filter drum is provided with first taper surface, the inner wall end portion of the end cap close to filter drum is provided with second taper surface, the first taper surface, second taper surface and filter element outer wall form sealed cavity, O-ring is provided in the sealed cavity, the contact surface of O-ring and first taper surface, second taper surface and filter element outer wall all form sealing structure.The domestic ceramic membrane purifier provided by the utility model has the advantages of simple structure, small pollution, high flux, long service life and low use cost.

The present invention provides a method for preparing a copper nanoparticle catalyst and its application. The copper metal nanocatalyst is in the form of dispersed particles. The preparation thereof comprises the following steps: heating copper salt, oleylamine and oleic acid at 20 to 60 degrees Celsius under nitrogen or other inert atmosphere, stirring and uniformly mixing, heating to 160 to 220 degrees Celsius at a certain rate for full reaction for 2 to 4 hours, obtaining a mixture of copper particles and other reaction products, cooling, centrifuging, washing and drying to obtain nanostructured copper particles. The copper nanoparticle catalyst obtained by the present invention can be applied to the electrocatalytic reaction of reducing nitric oxide to produce ammonia. Through the structural design of the catalyst copper, the nanometer size of the catalyst copper increases the specific surface area of ​​the electrode, promotes the diffusion of nitric oxide and ammonia, and achieves a high catalytic rate and single selectivity of nitric oxide to ammonia.

The water inlet device comprises a water inlet connector and an outer pipe, the first end of the outer pipe is connected with the water inlet connector, an inner pipe is arranged in the outer pipe in a sleeved mode, a gap between the inner wall of the outer pipe and the outer wall of the inner pipe forms an outer flow channel, and an outer cavity water outlet is formed in the side wall of the outer pipe. An inner flow channel communicated with the water inlet connector is formed in an inner cavity of the inner pipe, a water inlet port is formed in the end, close to the water inlet connector, of the inner pipe, an inner cavity water outlet is formed in the end, away from the water inlet connector, of the inner pipe, the water inlet port and the inner cavity water outlet are communicated through the inner flow channel, and the inner cavity water outlet is communicated with the inner flow channel and the outer flow channel. The flow slowing structure in the flow channel of the integrally arranged water inlet structure is provided with a plurality of micro steps, unnecessary parts such as a water retaining structure of the whole machine can be reduced, and meanwhile the hot water amount of the electric water heater can be greatly increased.

The present invention discloses a trimethyl chitosan-modified sodium alginate multivesicular liposome and a preparation method and application thereof. The preparation method comprises: (1) dissolving a lipid component in an organic solvent as an oil phase; dissolving sodium alginate in an aqueous solution containing an osmotic pressure regulator as an inner aqueous phase; (2) adding the oil phase to the inner aqueous phase, and ultrasonically forming colostrum; (3) adding the colostrum to an outer aqueous phase containing an osmotic pressure regulator and an auxiliary emulsifier, and homogenizing to form a double emulsion; (4) rotary evaporating the double emulsion to remove the organic solvent, centrifuging to remove the free drug, and dispersing the precipitate in a solvent to obtain sodium alginate multivesicular liposome; (5) synthesizing trimethyl chitosan, and uniformly coating to obtain trimethyl chitosan-modified sodium alginate multivesicular liposome. The liposome prepared by the present invention has a high drug encapsulation rate, and the use of trimethyl chitosan modification can further promote oral absorption, improve the oral bioavailability of the drug, reduce the number of drug use times, and improve patient compliance. Furthermore, the trimethyl chitosan-modified sodium diester alginate multivesicular liposomes have uniform particle size and stable morphology, so as to exert anticoagulation and platelet aggregation inhibition effects and be applied to the treatment of thrombosis-related diseases.

The visual charging device comprises a charger body, a charging wire, a charging gun head and an LED display lamp, the charging wire is electrically connected with a circuit board in the charger body, the charging gun head is arranged at the end portion of the charging wire, the LED display lamp is arranged on the charging gun head, the LED display lamp comprises a lampshade, an LED lamp ring and a lampshade end cover, the lampshade is an annular transparent lampshade, and the LED lamp ring is arranged on the lampshade end cover. The lampshade is fixedly arranged on the charging gun head, an annular groove is formed in the lampshade, the LED lamp ring is arranged in the lampshade along the annular groove, a lead of the LED display lamp is electrically connected with the charging wire, and the lampshade end cover is fixedly connected with the lampshade. According to the visual charging device, the LED display lamp is arranged on the charging gun head, the LED display lamp is an annular LED display lamp, multi-angle visualization can be achieved, the charging state does not need to be observed close to the charger body, the LED display lamp on the charging gun head and the LED lamp on the panel of the charger display synchronously, and the charging state can be displayed according to the charging state of the charger.

This invention belongs to the field of steelmaking furnace maintenance technology, specifically relating to a rapid hot-state furnace repair method for converters using thick plate trimmings as the repair material. Under the specific high-temperature, multi-slag hot environment after converter tapping, this invention utilizes thick plate trimmings with specific specifications and optional pretreatment as the structural framework. Residual high-temperature liquid slag serves as a natural high-temperature binder and heat transfer medium. Through precisely controlled feeding and furnace shaking, the two are driven to fully mix, impregnate, and spread. Finally, through a static thermal process, the mixture is sintered and solidified at the target furnace lining location, forming a composite ceramic-metal protective layer with interlocked microstructures, where the metal trimmings are the reinforcing phase and the condensed slag is the continuous binder phase. Furthermore, the resulting composite sintered layer exhibits superior erosion resistance and spalling resistance compared to traditional refractory material layers, resulting in more durable and safer furnace protection.

The invention provides a method for recycling metal in a positive electrode by using calcium sulfate sulfating roasting. The method comprises the following steps: pretreating a mixture composed of a positive electrode material and carbon by using an alkaline solution; mixing the NCM material with calcium sulfate or gypsum slag, and then roasting; adding water into the roasted product to carry out water leaching treatment, then carrying out suction filtration to obtain a lithium sulfate solution and water leaching residues, and carrying out evaporation treatment on leachate; and drying the water leaching slag, mixing the water leaching slag with a slag former, and then smelting to obtain high-grade matte nickel and manganese-rich slag. According to the method, the recovery rate of Li can reach 97%, the recovery rate of Co can reach 95% or above, the recovery rate of Ni can reach 96% or above, and compared with an existing wet recovery process, the method has the great cost advantage.

The utility model provides a kind of top-mounted electric mixer with Morse connection chuck, it is related to electric mixer technical field, including shell, drive shaft, chuck, stirring paddle, the drive shaft includes shaft body, the shaft body is equipped with the through-hole of shaft that can be passed by stirring paddle, the shaft body is rotationally arranged in shell by bearing, the lower part of the shaft body is provided with outer Morse taper, the chuck is used to fix stirring paddle, the inner sleeve of the chuck is equipped with the inner Morse taper that is compatible with outer Morse taper.The top-mounted electric mixer with Morse connection chuck, chuck is connected between drive shaft by Morse taper, and the two are pressed together by Morse taper, compared with the mode of traditional screw fixation, chuck and drive shaft are connected closely, without gap, and coaxiality is good.No special custom-made parts are needed, the price is low, the cost advantage is big, and the product application range is wide.