21results about How to "Realize active regulation" patented technology

The application provides a design method of an adaptive milling cutter with adjustable curvature, and relates to the technical field of cutter design and manufacturing. The application defines a cutter radius and a fillet radius, constructs a transition curve from a peripheral edge part to an end edge bottom part through a Bezier curve, establishes a cutter rectangular coordinate system, determines a Bezier curve parameter equation based on control point coordinates, calculates a curvature and a change rate, and then finds a control parameter combination that makes a target function value maximum by discretizing the control point coordinates, calculating the target function value and optimizing and solving, so as to realize accurate regulation and control of the cutter curvature, optimize a blade edge geometric shape, and improve the adaptability and cutting performance of the cutter under complex machining conditions.

The application provides a steam turbine condenser system for realizing intensified heat exchange, wherein a condenser body adopts a tubular heat exchanger, a condensing tube group is arranged in a shell, an ultrasonic wave generating unit is installed on an inner wall of the shell and faces a contact area of the condensing tube group and exhaust steam, a working condition monitoring unit is used for collecting environmental temperature and condenser operation parameters, and an intelligent control unit is electrically connected or signal connected with the working condition monitoring unit and the ultrasonic wave generating unit. The application realizes real-time sensing of an actual operation state of the steam turbine condenser through the working condition monitoring unit, dynamically adjusts the frequency and power of the ultrasonic wave by using a load-power matching algorithm built in the intelligent control unit, and destroys a thermal boundary layer and inhibits scaling by using cavitation effect and acoustic streaming effect of the ultrasonic wave. The application can establish a dynamic adjustment mechanism of the condenser operation parameters and the environmental temperature, realizes active regulation and closed-loop optimization of a heat exchange process, and realizes engineering high-efficiency application.

This invention relates to the field of drainage flow data processing technology, specifically to an intelligent control method and system for drainage efficiency based on drainage flow monitoring data. The invention comprises a sampled data sequence and a predicted data sequence; it obtains multiple data segment groups from the sampled data sequence and the predicted data sequence based on the volatility of the data in the sampled data sequence; it obtains the prediction deviation of each data segment group based on the difference distribution characteristics and relative distance between the two data sequences in each data segment group; it obtains the relative prediction deviation difference at real time based on the difference between the prediction deviation of the data segment group at the real time and the prediction deviation of other data segment groups within the historical range; it obtains the weighted prediction data for the next time step; it further obtains the predicted gate opening degree; and it controls the drainage gate. This invention optimizes the gate opening degree and improves drainage efficiency by obtaining accurate drainage flow prediction data for the next time step.

This invention provides an ion-doped calcium oxalate thermochemical heat storage material and its preparation method, the chemical formula of which is Ca. 1‑ x M x C2O4·H2O, where M is a dopant ion and x is the mole fraction of the dopant ion; M includes Mg 2+ Co 2+ Zn 2+ 、Sr 2+ One or more of the following. This invention regulates the lattice parameters, local coordination environment, defect state, and microstructure of calcium oxalate by doping with ions. While maintaining the original reversibility and cycle stability of the calcium oxalate system, it further optimizes its dehydration thermal storage temperature range, thermal response boundary, structural evolution behavior, and application compatibility materials, thereby improving the thermochemical thermal storage performance of calcium oxalate from the internal structural level.

This invention belongs to the field of optoelectronic technology, specifically relating to a method for fabricating a controllable crystallization micron-scale perovskite light-emitting device based on solution pretreatment. The method includes the following steps: Step 1: Obtaining a patterned microporous substrate; Step 2: Pre-wetting and seed layer construction; Step 3: Deposition of the main perovskite layer; Step 4: Slow-release controllable crystallization; The spin-coated wet film is placed in a vapor atmosphere of a good solvent for treatment, followed by thermal annealing to form a perovskite thin film within the patterned micropores; Step 5: Fabrication of a controllable crystallization micron-scale perovskite light-emitting device based on solution pretreatment. This invention, using pre-wetting, seed guidance, slow-release crystallization, and vapor annealing on a patterned microporous substrate, achieves precise control over the entire process of film nucleation and growth kinetics within the confined space of the micropores, thereby achieving high-quality, uniform fabrication of perovskite thin films within micron-scale micropores, and ultimately obtaining a high-performance, highly uniform microarray perovskite light-emitting device.

This invention discloses an anti-condensation and heat-insulating superhydrophobic aerogel coating, its preparation method, and its application in industrial thermal equipment. The method includes: segmentally modifying silica aerogel with reactive silane and hydrophobic silane in an alcohol-water mixture to obtain a bifunctional modified aerogel containing both resin-binding groups and low surface energy groups; emulsifying a phase change core material into droplets to obtain dew-point responsive bifacial breathing microcapsules; grafting polysiloxane onto the microcapsules; mixing waterborne silicone-modified film-forming resin, sheet-like shielding filler, flame-retardant filler, dispersant, defoamer, rheology modifier, film-forming aid, and water to obtain a base slurry; and performing leveling, pre-curing, and post-curing of the anti-condensation and heat-insulating superhydrophobic aerogel coating to enrich it, thereby obtaining an anti-condensation and heat-insulating superhydrophobic aerogel coating layer. This significantly reduces the wet thermal conductivity, ensuring the long-term heat-insulating effect of the coating under condensation conditions.

This invention relates to the field of polymer compound technology, specifically to an antibacterial food-grade plastic product for sealing and preservation and its preparation method, comprising an outer support layer and an inner antibacterial layer. The outer support layer is prepared by melt blending raw materials such as PBAT, PLA, and modified nano-calcium carbonate, wherein the mass ratio of PBAT to PLA is 90-100:10-20. The inner antibacterial layer is composed of nano-chitosan, tea polyphenols, essential oil microcapsules, glycerol, and agarose, composited on the surface of the outer support layer. The essential oil microcapsules have a core-shell structure, loading plant essential oils onto mesoporous silica as a carrier, and are coated with calcium alginate on the outer layer. The antibacterial food-grade plastic product prepared by this invention possesses long-lasting antibacterial properties, excellent mechanical properties, and heat-sealing strength, and has broad application prospects in the food packaging field.

The application is suitable for the field of heparin sodium crude product production, and provides a continuous drying and smashing integrated machine for heparin sodium crude product production, which comprises a secondary drying and smashing box, a drying and smashing cylinder assembly is arranged in the secondary drying and smashing box, the drying and smashing cylinder assembly is used for receiving heparin sodium wet solid introduced by a primary drying and smashing box; the drying and smashing cylinder assembly comprises a feeding pipe, a power shaft and a drying and smashing cylinder structure; the drying and smashing cylinder structure comprises a drying and smashing outer cylinder and at least two drying and smashing inner cylinders which are sequentially sleeved; the feeding pipe is communicated to the innermost drying and smashing inner cylinder of the at least two drying and smashing inner cylinders through a hose; the power shaft is used for synchronously driving the drying and smashing outer cylinder and the drying and smashing inner cylinders to rotate; the heparin sodium wet solid can be fully guaranteed to be in full contact with the heating body of the cylinder mesh in the sequentially graded smashing process, which is beneficial to linkage and cooperation of the two processes of drying and smashing, and reduces equipment investment cost and maintenance cost.

The utility model relates to the technical field of precision mould cooling, and disclose a kind of precision mould cooling device, including support block, firm crosspiece, lower mould and upper mould, the inside of support block is equipped with the installation cavity for storing coolant, sliding vertical pole is sealingly slidably installed in installation cavity, the top of sliding vertical pole passes through lower mould and is connected at the bottom of upper mould, water inlet pipe is fixedly installed on the left and right ends above the rear side inner wall of installation cavity respectively, the export end of two water inlet pipes is fixedly installed with micro circulating pump respectively, the other end of two micro circulating pumps is fixedly installed with electromagnetic flow regulating valve respectively, water outlet pipe is fixedly installed on the left and right ends below the rear side inner wall of installation cavity respectively, the export end of two water outlet pipes is fixedly installed with micro radiator respectively, extruding plate is fixedly installed on the bottom of sliding vertical pole, two water inlet pipes are all located above extruding plate, two water outlet pipes are all located below extruding plate.The utility model improves cooling effect.

The invention discloses an axial vibration isolation device of an underwater glider attitude adjusting motor based on an acoustic metamaterial, and belongs to the technical field of underwater equipment noise reduction, and the axial vibration isolation device comprises a vibration isolation piece made of an elastic damping material, and a periodic geometric structure is arranged on a body of the vibration isolation piece and is used for forming an elastic wave band gap for a vibration signal of a specific frequency band; the structural supporting piece is used for installing and supporting the vibration isolation piece; and the flexible transmission part is used for being connected with the transmission shaft and has a secondary vibration absorption function. The vibration isolation piece, the structure supporting piece and the flexible transmission piece are integrated, and efficient vibration isolation is achieved through the band gap characteristic of the vibration isolation piece and cooperative dissipation of the flexible transmission piece on vibration energy. The device is compact in structure, has the functions of torque bearing and vibration reduction, can effectively suppress vibration at the frequency band of 600Hz-1500Hz through parameterization design, has the maximum deformation not exceeding 0.5 mm, is suitable for the axial vibration isolation requirements of posture adjusting motors of underwater gliders of multiple models, and improves the signal acquisition precision of an acoustic sensor.

This invention belongs to the technical field of additive manufacturing technology and discloses an in-situ oxygen-controlled composite scraper and a laser selective melting device equipped with the in-situ oxygen-controlled composite scraper. The bottom of the composite scraper includes a second scraper (16), an air jet unit, and a first scraper (18) arranged sequentially along the powder spreading direction. It has an internal gas storage chamber (15) and a powder drop chamber (19). The first scraper is used to evenly spread the powder raw material to form an initial powder layer. The air jet unit performs in-situ oxidation treatment on the surface of the initial powder layer by spraying oxygen-containing gas. The second scraper is used to level and compact the powder layer after the in-situ oxidation treatment. This invention improves the composition and structure of the composite scraper and utilizes the overall cooperation of the first scraper, the air jet unit, and the second scraper to generate a synergistic mechanism of powder spreading, in-situ oxidation, and secondary compaction, breaking through the process limitation that it is difficult to construct oxide dispersion-strengthened structures in-situ during additive manufacturing.

The application relates to a distributed photovoltaic output control method, device, equipment, medium and program product. The method comprises the following steps: collecting the running state data of a current time window of a transformer area and a distributed photovoltaic access point; calculating a transformer area safety budget value in a next time window; performing consistency constraint processing on the transformer area safety budget value to obtain a final safety budget value; obtaining a final predicted safety margin of a preset future time range according to a historical running state data sequence; determining a safety control parameter according to the relationship between the final predicted safety margin and a preset safety margin threshold; and generating a control instruction according to a preset safety budget allocation rule, the final safety budget value, the safety control parameter and the final predicted safety margin, and instructing a transformer area side terminal to control the output of a distributed photovoltaic unit in the transformer area based on the control instruction. The method can control the output of the distributed photovoltaic unit in a timely manner.

This application discloses a die-casting equipment and its processing technology. The die-casting equipment includes a mounting plate, a fixed template, a moving template, a mold closing drive assembly, an injection mechanism, and an exhaust valve. A cavity is formed between the fixed template and the moving template. The injection mechanism is used to transport molten metal to the cavity and guides the flow through an injection channel structure. The injection channel structure includes an injection plate and its internal injection channel. A guide vane assembly is provided inside the channel, which includes spiral guide vanes and a guide core, causing the molten metal to form a spiral flow field. A gas gathering chamber is provided inside the guide core and is connected to the swirling center through an opening slot, allowing gas to enter the gas gathering chamber and achieve gas-liquid separation. The gas gathering chamber is connected to a side exhaust branch and a vacuum pump to improve exhaust efficiency. The injection channel also has a buffer flow stabilizing channel for flow shaping. This structure can reduce porosity, looseness, and air inclusion defects, and improve the die-casting quality.

The utility model discloses a kind of water cooling liquid circulation mechanisms for pipe turning equipment, it is related to machining cooling technical field, including coolant storage tank, delivery pump and temperature regulating device, further including the shunt pipe being communicated with the delivery pump export;The end of the shunt pipe is equipped with multiple nozzles, and each nozzle is connected with shunt pipe by independent flow regulating valve;The valve core of the flow regulating valve is driven by stepper motor, and stepper motor receives signal from controller to adjust valve core opening degree;The liquid outlet direction of the nozzle is towards the working area of turning tool.The utility model provides a kind of water cooling liquid circulation mechanisms for pipe turning equipment, by flow regulating valve and stepper motor, and stepper motor adjusts valve core opening degree according to the signal of controller, to realize the accurate control of coolant flow;This design is suitable for the cooling demand under different working conditions, avoids the fluctuation of cooling effect due to unstable flow.

This invention discloses a method and apparatus for removing redundant points in robotic arm path planning. The method includes: acquiring a sequence of original points for the robotic arm's path planning; calculating the shortest distance between each intermediate point in the original path planning sequence and a reference straight line based on the start and end points of the original path planning sequence; constructing a key point set from all original path planning points whose shortest distance values ​​are greater than a preset residual threshold; if the key point set is empty, retaining the endpoints of the current path sequence as feature points; if it is not empty, selecting the optimal segmentation point based on weight parameters, segmenting the current path sequence into subsequences and recursively processing them until all subsequences can no longer be segmented, retaining their endpoints as feature points; and obtaining a set of retained path planning points after removing redundant points based on all feature points. This significantly optimizes the spatial distribution of path points while preserving the original path's key features, providing well-distributed path point input for trajectory planning methods such as multinomial interpolation.

This invention relates to the field of insulator optimization technology, specifically providing an insulator optimization method based on dielectric constant gradient modulation of the spatial electric field. The method includes: establishing a geometric model of the GIS equipment's cavity, central conductor, grounding tank, and insulator working together in a two-dimensional axisymmetric coordinate system; constructing a gradient power function of the dielectric constant varying radially based on the insulator's geometric and material parameters; defining the electric field calculation region; solving the electric field equations using this function and preset boundary conditions to obtain potential and electric field intensity distribution data; optimizing the dielectric constant gradient parameters with electric field coverage and average tangential field strength as dual optimization objectives and maximum field strength along the surface as a constraint, thus completing the insulator optimization. This invention provides an insulator optimization method based on dielectric constant gradient modulation of the spatial electric field, which solves the problem that insulator optimization methods fail to actively modulate the spatial electric field, making it difficult to fundamentally eliminate insulation faults caused by metal particles.

This application relates to the field of batteries, providing a battery cell and its preparation method, a battery device, an electrical device, and an energy storage device. The preparation method of the battery cell includes: providing a cell assembly, wherein the cell assembly is formed by stacking or winding a positive electrode sheet, a separator, and a negative electrode sheet; providing a housing, and placing the cell assembly inside the housing; providing an electrolyte and injecting the electrolyte into the housing; and performing a formation step; wherein the negative electrode sheet includes a current collector, a negative electrode active material, a conductive agent, and a binder, and the binder includes a functional polymer, wherein the functional polymer is formed by chemically bonding a first reaction unit, a second reaction unit, and a third reaction unit to form a molecular network structure. This application can significantly improve the cycle life of the negative electrode, significantly improve the cycle stability and structural integrity of the silicon negative electrode, and provide effective technical support for the practical application of high-capacity lithium-ion batteries.

The application discloses a kind of intelligent gap-adjusting magnetic non-contact flywheel transmission response supervision method and system, belong to flywheel transmission technical field.The method is compared with the preset magnetic force transmission parameter type domain value by sensor acquisition flywheel transmission target response parameter, and abnormal parameter and corresponding time stamp node stage are marked;Response parameter sample cluster is constructed based on parameter type and time stamp, and gap-adjusting characteristic sample cluster is formed by screening;Parameter type and time stamp coding construct gap-adjusting feature, and response error coefficient is evaluated;According to the error coefficient change of adjacent stage, judge the gap-adjusting trend, through the dynamic adjustment of speed regulator flywheel speed, parameter is normal when interrupting speed regulation.The application realizes intelligent gap-adjusting under non-contact transmission, improves transmission accuracy and response real-time, solves the problems such as traditional gap-adjusting lag, depends on artificial, is applicable to flywheel power generation, industrial transmission, new energy equipment and other fields.

The invention relates to the technical field of biological coating preparation, in particular to a calcium-phosphorus coating preparation method and system.The method comprises the steps that a to-be-treated base body in a coating preparation environment is pretreated, a pretreated base body is obtained, a coating base material set is used for obtaining calcium-phosphorus precursor slurry, and the calcium-phosphorus precursor slurry is prepared; the method comprises the following steps: carrying out laser melting on a pretreated matrix and calcium-phosphorus precursor slurry to obtain a molten calcium-phosphorus layer, carrying out cooling crystallization on the molten calcium-phosphorus layer to obtain a target coating, carrying out quality detection on the target coating to obtain a detection result, if the detection result is unqualified, obtaining an abnormal type, and carrying out adjustment preparation on the target coating based on the abnormal type. And if the detection result is qualified, taking the target coating as the qualified coating. According to the invention, the high efficiency and stability of preparation of the calcium-phosphorus coating can be improved.

This invention discloses a sintering control process for improving the lead and cadmium leaching rate of ceramic glazes, relating to the field of daily-use ceramic manufacturing technology. The process includes: determining the characteristic dielectric frequency of the glaze to be fired at its critical melting temperature, where the characteristic dielectric frequency corresponds to the frequency of synergistic polarization between lead or cadmium ions and glass network forging ions; heating the product to the critical melting temperature and holding it at that temperature, applying an intermittent pulsed electric field with a frequency equal to the characteristic dielectric frequency; after stopping the electric field, subjecting the glaze melt to temperature cycling treatment, applying periodic temperature fluctuations at a reference temperature; and after the last half-cycle of cooling, rapidly cooling through the glass transition temperature zone, followed by slow cooling to room temperature. This invention, through the synergistic control of characteristic frequency electric field writing, temperature cycling screening, and gradient rapid freezing, significantly reduces the lead and cadmium leaching rate of the glaze surface without changing the glaze formulation, increasing the maximum firing temperature, or extending the production cycle.

This invention discloses a high-carbon, low-silicon, shrinkage-resistant ductile iron. The chemical composition of the ductile iron, by weight percentage, is: C: 3.9%-3.95%, Si: 1.9%-2.1%, Mn: 0.5%-0.6%, P < 0.04%, S ≤ 0.02%, residual Mg: 0.04%-0.06%, residual RE < 0.03%, with the balance being Fe and unavoidable impurities. This invention, through high-carbon, low-silicon composition design and controlling the carbon-silicon ratio ≥ 1.85, significantly reduces the amount of primary graphite precipitation from the conventional 15%-20% to 3%-5%, achieving active control of the graphitization expansion sequence, delaying graphitization expansion to the later stage of solidification, and effectively improving the self-feeding effect.