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98results about How to "Guaranteed consistency" patented technology

Battery management and control system for underwater vehicle

The invention discloses a battery management and control system for an underwater vehicle. The battery management and control system comprises a main control unit, a plurality of battery blocks and charge circuits, wherein the plurality of battery blocks are sequentially connected with one another in series; each battery block comprises a management control unit; each management control unit comprises a sampling circuit, a short circuit protection circuit, a temperature detection circuit, a battery balance circuit, an over-charge and over-discharge protection circuit, an anti-backflow circuit and a voltage collection circuit; and the charge circuit, the sampling circuit, the temperature detection circuit and the voltage collection circuit in each management control unit all are connected with the main control unit. In the process that an autonomous underwater vehicle enters a docking station for charging, parameters of a voltage, a current, a temperature and the like of a battery are transmitted to the main control unit; the main control unit transmits the parameters to the docking station through a wifi signal; the docking station transmits a feedback signal to a shore-based upper computer for carrying out monitoring and operation. The system disclosed by the invention carries out secondary protection on the battery, and is safe and reliable; normal use of equipment in the underwater vehicle is ensured; and the lifetime of the battery can be prolonged.
Owner:ZHEJIANG UNIV

Multi-stage compression cooling system of natural gas compressor and method for controlling same

The invention discloses a multi-stage compression cooling system of a natural gas compressor. The multi-stage compression cooling system of the natural gas compressor comprises a natural gas low-pressure inlet, at least two stages of natural gas compressing and cooling devices and a natural gas high-pressure exhaust outlet which are sequentially connected through pipelines in the flowing direction of natural gas. The invention further provides a method for controlling the system. The method includes the steps that the natural gas compressor is started through a frequency converter and subjected to process control, the frequency converter is used for adjusting and controlling the flow amount of a compressor motor and a cooling fan in a proportion integration differentiation (PID) mode, and therefore the internal temperature of a skid is controlled. The natural gas compressor is started through the frequency converter, so that a power grid is not affected, and the changes of loads can be responded in real time. PID rotary speed adjustment is carried out on a motor of the cooling fan according to needs by comparing the internal temperature of a skid with the environmental temperature, multi-stage full control is carried out on the temperature of the skid of the compressor, and noise is reduced correspondingly.
Owner:安姆达清洁能源技术(苏州)有限公司

Metal-to-metal adhesive with stable size

The invention discloses a metal-to-metal adhesive with a stable size. The metal-to-metal adhesive comprises the following raw materials: water-borne epoxy resin, deionized water, triethylene tetramine, phthalic anhydride, isopropyl trititanate, nanometer calcium carbonate, fatty alcohol polyoxyethylene ether, isophorone, dibutyltin dilaurate and polypropylene polyoxyethylene glycerol ether. The metal-to-metal adhesive with a stable size in the invention is simple to prepare and has a stable cured size, good bonding performance, water resistance and corrosion resistance; since the water-borne epoxy resin is used as a main raw material, the metal-to-metal adhesive has good hardness, elasticity and weatherability; since water is used as a solvent, the environment is protected, and cost is reduced; the modified nanometer calcium carbonate enables the adhesive to be uniformly dispersed and to maintain rheological properties and certain viscosity; the dibutyltin dilaurate allows the drying time of the adhesive to be shortened, the adhesive to be saved, work efficiency to be improved, and cost to be reduced; and due to addition of normal temperature and high temperature curing agents, the adhesive can be stored at 4 DEG C, has long shelf life, exerts curing effect in different environments and has a wide application scope.
Owner:HEFEI CITY TENVER PRECISION CASTING

Pure-natural pollution-free dry-mixed floor mortar

The invention relates to a pure-natural pollution-free dry-mixed floor mortar, which is prepared from the following raw materials in parts by weight: 200 to 250 parts of cement, 710 to 750 parts of yellow sand, 40 to 70 parts of pulverized fuel ash, 0.5 to 2 parts of additive, and 20 to 30 parts of natural thickening agent, wherein the additive is hydroxypropyl methyl cellulose; the natural thickening agent is a mixture prepared from the raw materials in parts by weight: 20 to 30 parts of glutinous rice flour, 15 to 35 parts of egg white powder, 25 to 30 parts of clay soil powder and 15 to 30 parts of straw meal. The pure-natural pollution-free dry-mixed floor mortar has the advantages that the natural thickening agent is adopted, so that on one hand, the overall viscosity of the mortar added with water can be improved, and a series of problems of shrinkage crack, water seepage, sand strip, peeling deformation, low strength level and the like of a surface layer of a floor at the later stage are prevented; on the other hand, the mortar is pollution-free to a human body, and the problem that straw stalks cannot be utilized can be effectively solved; the materials can be effectively smashed through a rotary cutter disc, and a filter effect of a filter box is effectively improved through horizontally swinging the filter box in a reciprocating way.
Owner:江苏中鼎建材集团有限公司

Iron oxide pigment production equipment capable of being used for removing particle impurities

The invention relates to the technical field of iron oxide pigment production equipment, in particular to iron oxide pigment production equipment capable of being used for removing particle impurities. The equipment comprises an iron oxide pigment production equipment main body, wherein the iron oxide pigment production equipment main body comprises a processing mixing box main body, a bottom plate, a conveying box, a second servo motor, a third servo motor, a first servo motor and a raw material feeding box main body, the processing mixing box main body is fixedly mounted at the top end of the bottom plate, and a discharging opening is fixedly formed in the bottom end of the processing mixing box main body; and a control valve is fixedly mounted in the discharge port. By arranging the screening mechanism, through the shape characteristics of the rotary arc cam and the arc cam, the threaded spring can be driven to do reciprocating motion up and down, raw materials can be rapidly filtered, the structure is simple, operation is convenient, meanwhile, impurity particles are easy to clean and convenient to put into production, and rectangular grooves in the two sides of the filtering screen plate body slide up and down on sliding blocks; the stability of the filter sieve plate main body in the vertical vibration process is ensured.
Owner:正太新材料科技有限责任公司

Injection molding device for processing educational toy

The invention discloses an injection molding device for processing an educational toy. The injection molding device comprises an injection molding machine body and a collecting bucket, wherein one side of a limiting block is provided with a first telescopic mechanism, the other side of the limiting block is provided with a second telescopic mechanism, a quantitative injection mechanism is fixedlymounted on the top of a fixing base, the collecting bucket is fixedly mounted on the top end of a connecting pipe, and a driving scraping mechanism is embedded and installed inside the collecting bucket. The injection molding device is provided with the quantitative injection mechanism, and quantitative water sources can be injected into the collecting bucket, so that the viscosity of materials attached to the collecting bucket is guaranteed, and the injection precision of the materials is improved; the driving scraping mechanism is arranged, the materials attached to the inner wall of the collecting bucket can be effectively scraped off, waste of the materials is reduced, and the production cost is reduced; and through combination of the first telescopic mechanism and the second telescopic mechanism, a user can conveniently and quickly install and detach the collecting bucket, and the user can conveniently overhaul and wash the inside of the collecting bucket in real time.
Owner:狼伙伴(苏州)影视产业有限公司

Environment-friendly flame-retardant paint for interior wall and preparation method thereof

The invention discloses environment-friendly flame-retardant paint for an interior wall. The environment-friendly flame-retardant paint is prepared from the following raw materials including water-borne epoxy resin, water-borne acrylic resin, xanthan gum, gelatin, ultrafine silicon dioxide, sodium dodecyl benzene sulfonate, ammonium sulphonate, ammonium polyphosphate, melamine phosphate, coloring agents, ultraviolet absorbers, anti-sedimentation agents, stabilizing agents, ethyl alcohol and water. A preparation method of the paint comprises the following steps of preparing a resin mixed solution; mixing sodium dodecyl benzene sulfonate and melamine phosphate; dissolving and mixing ammonium sulphonate and ammonium polyphosphate; dissolving and mixing xanthan gum and gelatin; mixing auxiliary agents; dispersing ultrafine silicon dioxide. The paint provided by the invention has the advantages of safety, environment-friendly performance, high drying speed, strong impact capability, good flame-retardant performance and excellent anti-aging performance; the operation process is simple; all raw materials are uniformly mixed; the preparation process achieves the pollution-free effect; the production efficiency is high; the paint is applicable to home interior walls.
Owner:六安三创建筑材料有限公司

Battery pack active equalization method based on center drift clustering analysis

The invention discloses a battery pack active equalization method based on center drift clustering analysis. The battery pack active equalization method comprises the steps of charge state distribution estimation, clustering analysis based on center drift, clustering algorithm optimization for different working conditions and equalization ending conditions based on consistency judgment. The methodis suitable for a battery pack active equalization system, by controlling the uniform distribution of the SOC in an equalization manner, the consistency degree of each single battery in a battery pack is ensured, and the overall performance of the battery pack is optimized. The clustering analysis based on center drift ensures that the number of the single batteries needing to be equalized is minimum, meanwhile, ensures the effect of equalization ending consistency, and improves the efficiency of an equalization process. In consideration that the reasons limiting the performance of the battery pack under different working conditions are different, an objective function and as central point updating probability function are optimized in a targeted manner, the clustering process is simplified, and the improvement effect of equalization on the performance of the battery pack is optimized.
Owner:NANJING UNIV OF SCI & TECH

Processing method of freeze-dried figs

The invention discloses a processing method of freeze-dried figs. The freeze-dried figs have balanced nutrition, does not contain any additive, can be eaten by both old people and children and can beautify the face, protect the skin, nourish the liver, protect the stomach, enhance immunity, protect heart and cerebral vessels and resist oxidation, senility and cancers. The method compries the steps that figs are subjected to three treatments of blanching with a hot dietary alkali solution, lycopene fermentation and Kefir fermentation, peeling is conducted rapidly, oxidase is inhibited, browning is prevented, bright red is kept, the nutrient content is increased, and the treated figs are slightly sour and palatable; oat beta-glucan is added, the taste and fragrance of the figs cannot be affected, the viscosity of fig pulp is properly increased, and it is guaranteed that in the freeze-drying process, breaking cannot occur, and the shape is kept complete; meanwhile, rich dietary fibers are provided, proliferation of intestinal beneficial bacteria is promoted, the health-care function is enhanced, and growth of miscellaneous bacteria is inhibited; the freeze-dried figs are loose, free of pore, crispy at the beginning of chewing, capable of achieving chewiness later and special in mouthfeel, taste requirements of consumers are increased, and the economic income is increased by 13.2%.
Owner:安徽省怡果生态科技有限公司

Gas metal arc welding flux-cored wire used for ultralow-temperature high-manganese steel

The invention relates to a gas metal arc welding flux-cored wire used for ultralow-temperature high-manganese steel. According to the technical scheme, the gas metal arc welding flux-cored wire used for the ultralow-temperature high-manganese steel is composed of 65-70 wt% of a steel strip and 30-35 wt% of flux core powder; the steel strip comprises the following chemical components: 0.10-0.20 wt% of C, 0.01-0.05 wt% of Si, 3-7 wt% of Mn, less than or equal to 0.002 wt% of P, less than or equal to 0.001 wt% of S, and the balance Fe and inevitable impurities; and the flux core powder comprises the following chemical components: 28-34 wt% of rutile, 2-4 wt% of zircon sand, 2-4 wt% of potassium titanate, 20-25 wt% of electrolytic manganese, 8-15 wt% of nickel powder, 8-12 wt% of high-carbon ferro-chrome, and the balance iron powder. According to the gas metal arc welding flux-cored wire used for the ultralow-temperature high-manganese steel, all-position welding can be achieved, and the welding efficiency is high; and formed weld metal is good in forming, low in pore sensitivity and excellent in low-temperature toughness, and the strength matches that of the ultralow-temperature high-manganese steel.
Owner:浙江鸿途焊接科技有限公司 +2
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