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33results about How to "Promote technological progress" patented technology

Fault risk sensing and early warning method for high-low voltage switchgear assembly

The invention relates to the technical field of electric power system safety early warning, and discloses a fault risk sensing early warning method for a high-low voltage switchgear assembly, and the method carries out the data preprocessing and feature extraction through collecting the state monitoring data, environmental parameters and basic attribute information of a device in historical operation. And based on the feature data sets, constructing a fault risk prediction model to predict the fault risk probability of the equipment in a period of time in the future, obtaining the operation state data and environmental parameters of the equipment in real time, and inputting the prediction model to obtain the fault risk probability. Meanwhile, the equipment is monitored in real time, original monitoring data is cleaned, abnormal values are removed, real-time monitoring data is compared with prediction data, whether the difference exceeds a threshold value or not is judged according to a preset risk threshold value, and risk points are marked. And evaluating the equipment fault risk according to the risk point and the evaluation strategy, and sending a result to related personnel to take prevention measures.
Owner:BEIJING YANENG ELECTRIC EQUIP CO LTD

Intelligent system integrating medical staff workload monitoring and patient psychological support

The invention provides an innovative integrated system which aims at monitoring the workload of medical staff and providing psychological support for patients at the same time. The system collects physiological and behavioral data of medical staff and physiological and psychological state information of a patient in real time through a multi-modal data acquisition technology. And by utilizing an advanced machine learning algorithm, the system can intelligently evaluate the workload of the medical personnel and predict the overwork risk. Meanwhile, according to individual requirements of the patient, the system generates customized psychological support schemes including emotion recognition, psychological education, social support and professional consultation. In addition, the system has the real-time feedback and intervention functions, and it is ensured that medical workers and patients get attention and help in time. The intelligent user interface design improves the user experience, and strict data security and privacy protection measures guarantee the security of user information. According to the design of the system, the efficiency and quality of medical care work are improved, the overwork risk of medical staff is reduced, comprehensive psychological care is provided for patients, the psychological welfare of the patients is enhanced, and overall rehabilitation of the patients is promoted.
Owner:THE FIRST AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV

Intelligent temperature-control self-repairing aluminum-based composite material and preparation method thereof

The invention relates to the technical field of aluminum-based composite materials, in particular to an intelligent temperature control self-repairing aluminum-based composite material and a preparation method of the intelligent temperature control self-repairing aluminum-based composite material. 5-15 parts of shape memory alloy microwires; 4.3 to 11.8 parts of epoxy resin prepreg containing microcapsules; wherein the epoxy resin prepreg containing microcapsules is composed of the following components: 3-8 parts of epoxy resin; 0.3 to 0.8 part of a curing agent; according to the invention, the advantages of a metal material, a composite material and an intelligent material are ingeniously combined. The aluminum alloy matrix provides excellent specific strength and specific stiffness, the shape memory alloy microwires endow the material with intelligent response capability, and the microcapsule system realizes a chemical repair function.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Ultrafast heat switching device and design method thereof

The invention discloses an ultrafast heat switching device and a design method thereof. The ultrafast heat switch device comprises a first polariton layer, a fixed near-field gap and a second polariton layer which are sequentially arranged from top to bottom. According to the design method, an external ultrafast light pulse is utilized to excite a first polariton layer, and mid-infrared transient polaritons are generated. Time-varying coupling occurs between the transient polaritons and polaritons of the second polariton layer, opening or closing of a near-field thermal radiation channel is dynamically controlled, and a thermal switch function is realized. Based on the synergistic effect of heterostructure terminal pairing and transient polaritons, the picosecond-level response speed and the switch ratio exceeding four orders of magnitude are achieved. Under the optimal design, the device can achieve the laser cooling effect on the emitting electrode in a single switching period, and an innovative solution is provided for nanoscale dynamic thermal management.
Owner:SHANGHAI JIAOTONG UNIV

Pricing method based on AIGC service and related equipment

The embodiment of the invention provides an AIGC service-based pricing method and related equipment, which are used for determining an efficient prompt pricing algorithm for an AIGC service platform. Comprising the steps of obtaining a generative artificial intelligence (GAI) model set, and determining all GAI sub-models and model prompt information in the GAI model set; obtaining a user prompt set and the prompt ambiguity of each user prompt intention; determining expected utility mapping according to the GAI model set and the user prompt set; according to the expected utility mapping, the model prompt information, all the GAI sub-models and the prompt ambiguity, determining a target GAI model, and determining a target prompt strategy; and determining isomorphic pricing information corresponding to the prompt pricing information under the same prompt ambiguity, thereby determining a target association relationship between the target prompt strategy and prompt cost information under the target GAI model according to the isomorphic pricing information, and determining target pricing information corresponding to the prompt pricing information under different prompt ambiguity according to the target association relationship.
Owner:SHENZHEN INST OF ARTIFICIAL INTELLIGENCE & ROBOTICS FOR SOC +1

Battery early warning detection system and method based on power supply side energy storage system

The invention relates to the technical field of batteries, and discloses a battery early warning detection system and method based on a power supply side energy storage system, and the method comprises the steps: obtaining the state data of a battery, and obtaining the electrochemical impedance and thermal diffusion coefficient according to the state data; obtaining a charge state change rate according to the electrochemical impedance; obtaining chemical component data according to the gas release condition; comprehensively evaluating the health condition of the battery according to the thermal diffusion coefficient, the charge state change rate and the chemical component data; and performing early warning according to the comprehensive evaluation result. The health condition of the battery can be monitored in real time, and potential problems can be found in advance, so that sudden faults and safety accidents are avoided. Through accurate analysis of electrochemical impedance, thermal diffusion coefficient and chemical component data, the early warning detection system and method can timely discover tiny change of battery performance, and provide scientific basis for battery maintenance and replacement.
Owner:新疆立新能源股份有限公司 +1

Demulsification washing process for PVDF (Polyvinylidene Fluoride) emulsion

The invention discloses a PVDF emulsion demulsification washing process, and relates to the technical field of polymer modified materials. The process aims at effectively removing the residual additive in the polyvinylidene fluoride emulsion so as to improve the purity and the performance of the final product. The process comprises the following steps: firstly, mixing PVDF emulsion with a pre-prepared nano demulsifier, and conveying the mixture to a condensation tower through a screw pump; in the condensation tower, demulsifying the mixed solution at a set temperature, and mechanically stirring by adopting a frame type stirrer to promote the emulsion to be demulsified and form snowflake-shaped particles; and then, the demulsified material is discharged from the bottom of the condensation tower and enters a washing tower, and the residual auxiliary agent is removed by using deionized water in a countercurrent washing manner. And finally, dehydrating and drying the washed material. The method has the advantages that the demulsification and washing processes are optimized, so that the production efficiency is improved, the resource consumption is reduced, and meanwhile, the high purity and excellent performance of the PVDF product are ensured.
Owner:INNER MONGOLIA WANHAO FLUOROCHEM +2

Wavelength calibration device and method for injection type locking optical comb

The invention relates to the technical field of optical comb wavelength calibration, in particular to a wavelength calibration device and method of an injection type locking optical comb, which can be used for optical comb wavelength calibration of an injection type locking method. According to the femtosecond laser frequency comb, injection type locking is adopted, complex optical and electrical locking needed by a traditional femtosecond laser frequency comb is avoided, and the system structure is greatly simplified. The cost of the system is reduced, and the reliability and the stability of the system are improved. The beat frequency process is realized by using the narrow linewidth laser and the photoelectric detector, and the wavelength change of the mid-infrared light frequency comb can be monitored in real time.
Owner:BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH

Section abnormity judgment method based on settlement observation

The invention relates to the technical field of railway surveying and mapping, and provides a section anomaly judgment method based on settlement observation, which comprises the following steps: acquiring section surveying and mapping requirements of settlement observation and settlement observation terminal equipment information, matching equipment parameters, performing state detection, then analyzing the surveying and mapping requirements, generating coordinate information of a to-be-observed point, and judging whether the to-be-observed point is abnormal or not. Establishing a database to store related data, utilizing the database and historical data to construct a section settlement observation point prediction model, outputting a settlement prediction result, comparing the settlement prediction result with a preset abnormity reminding threshold value, if the prediction result is abnormal, obtaining real-time settlement observation section data, comparing the real-time settlement observation section data, and optimizing the prediction model until the prediction model accords with an error range. According to the method, automatic reminding and level-to-level management of abnormal settlement or upheaval are achieved, safe operation of railway engineering is achieved, the accuracy of settlement observation data is effectively improved, section abnormal data can be found in advance, and powerful support is provided for maintenance of the railway engineering.
Owner:INST OF COMPUTING TECH CHINA ACAD OF RAILWAY SCI +2

Internet switch with fireproof arc breaking function

The utility model discloses an internet switch with a fireproof arc breaking function, relates to the technical field of internet switches, and aims to solve the problems that a traditional internet switch has defects in the aspect of electrical safety protection, and particularly, a combustion risk is easy to occur under the condition that a circuit is overheated, so that potential safety hazards are caused. The device comprises a device body, a switch arc breaking mechanism and a fireproof mechanism, the upper end of the device body is provided with the switch arc breaking mechanism, and the lower end of the device body is provided with the fireproof mechanism; a bimetallic strip is arranged in the fireproof mechanism, when the temperature rises, the bimetallic strip is bent to drive the plug-in to move, and the circuit is disconnected; meanwhile, an elastic piece is arranged and used for resetting the plug-in when the bimetallic strip recovers the shape, so that the circuit is reconnected; according to the utility model, automatic disconnection and recovery of the circuit are realized through the thermal deformation characteristic of the bimetallic strip, fire hazards caused by overheating are effectively prevented, the safety and stability of the circuit are improved, and the circuit is suitable for various circuit control places requiring safety protection.
Owner:CHINA THREE GORGES UNIV

A continuous extrusion and electroplating integrated preparation method for aluminum bars

PendingCN122503919Aavoid surface defectsavoid accumulation
The present application relates to the technical field of aluminum strip electroplating, and particularly relates to a continuous extrusion and electroplating integrated preparation method for aluminum strip. The present application is characterized by the following aspects: a full-process continuous process design is adopted, including continuous extrusion, continuous electroplating pretreatment, continuous electroplating of composite coating, and continuous post-plating treatment; a differentiated process connection scheme is set for 1 series and 6 series aluminum alloy substrates; a nickel functional layer deposition thickness quantitative regulation and control model is adopted, in which a turbulence correction coefficient is introduced; and a copper-nickel composite coating structure, segmented current density control, plating solution temperature matching concentration matching regulation and control technology are adopted. The present application realizes integrated continuous production of aluminum strip forming and surface modification, greatly improves the adhesion, thickness uniformity and corrosion resistance of the coating, and balances the production efficiency and product performance, and can be widely applied to the preparation of conductive aluminum strips in high-end fields such as new energy vehicles.
Owner:SHANGHAI AINUO METAL MATERIALS CO LTD

WEEE recycling inventory optimization method based on evolutionary reinforcement learning

The invention relates to a WEEE recycling supply chain inventory optimization method based on evolutionary reinforcement learning, and belongs to the technical field of supply chain management and artificial intelligence. According to the method, a multi-level inventory cooperative control model is constructed, an inventory optimization problem is modeled as a Markov decision process, and an evolution reinforcement learning algorithm is utilized to train an intelligent agent to learn an optimal strategy. Core innovations include design state space capture inventory dynamics, action space processing continuation to discrete decision mapping, and cost-based minimization of reward functions. According to the algorithm, a population evolution mechanism and experience playback optimization are fused, and the learning efficiency and stability are improved through parallel exploration and sample screening. According to the method, the uncertainty of the recovery amount and demand can be effectively dealt with, the inventory cost is reduced, the supply chain robustness and sustainability are enhanced, and a self-adaptive intelligent solution is provided for WEEE management.
Owner:QINGDAO HAIQI SOFTWARE CO LTD

Clamp for transmission gear of fuel injection pump

The invention belongs to the field of machine tool machining, and relates to a fuel injection pump transmission gear clamp, a key groove in a supporting seat is matched with a workpiece boss to ensure the phase, a taper sleeve and an inverted taper centering hole are matched with a disc spring to achieve accurate centering, an upper pull rod is connected with a pull claw to be stably clamped with a pull rod, and an automatic feeding and discharging mechanism achieves automatic machining. The clamp is exquisite in design, the double precision of workpiece phase and centering is guaranteed, and the machining quality of the fuel injection pump transmission gear is improved; manual intervention is reduced through automatic feeding and discharging, and the machining efficiency is remarkably improved; the structure is stable and reliable, maintenance is easy, and production cost is reduced; the method is suitable for batch machining, meets the urgent requirements of the modern manufacturing industry for high precision and high efficiency, provides powerful support for precise manufacturing of the fuel injection pump transmission gear, and promotes technical progress and upgrading of related industries.
Owner:CHONGQING MACHINE TOOL GROUP

Lifting type powder electroplating or electrolysis impurity removal device

ActiveCN222574828UImprove the plating effectincrease contact areaElectrolytic agentElectrochemistry
The utility model discloses a lifting type powder electroplating or electrolysis impurity removal device, which relates to the technical field of electrochemistry, a first connecting mechanism and a second connecting mechanism are fixedly mounted, a filter cartridge is positioned in a first electrode chamber, the top of the filter cartridge is mounted and connected with the output end of the first connecting mechanism, and the bottom of the filter cartridge is immersed into the liquid level in the first electrode chamber; the top of the movable electrode is connected with the output end of the second electrode chamber; and the filter cartridge and the movable electrode are electrically connected with a metal electrode of the power supply respectively. According to the utility model, the powder material in the filter cartridge is rotationally dispersed in the filter cartridge due to the rotary motion of the filter cartridge, so that the collision frequency and the contact area of the powder material and the metal electrode are increased or the full contact of the powder material and electrolyte is ensured, further the electroplating or electrolysis effect is improved, and the electroplating or electrolysis efficiency is improved; and the lifting motion of the filter cartridge can conveniently realize electroplating or purification of the powder material and collection of the powder material, so that the material collecting efficiency of electroplating or electrolysis is improved.
Owner:HEFEI UNIV OF TECH

Method for separating and purifying oleuropein from olive leaves

The invention discloses a method for separating and purifying oleuropein from olive leaves. Olive leaves are used as a raw material, and instantaneous high-temperature steam is used for treating the raw material by referring to the idea of a tea fixation technology to prevent enzymatic reaction; the solvent ratio of high-purity ethanol to ethyl acetate is respectively selected in the enriching and refining processes, so that the enzyme loses catalytic action, the degradation of oleuropein is reduced and eliminated, the yield of oleuropein is improved, the extraction cost is reduced, the productivity of oleuropein is effectively improved, and the industrial development is promoted.
Owner:HUNAN A-PLUS BIO-TECH CO LTD

Target platform system performance test method and device and storage medium

The invention discloses a target platform system performance test method and device and a storage medium, and belongs to the field of intelligent computing. According to the test method, code line granularity monitoring of system performance key indexes is achieved. According to the testing method, data visualization is achieved based on key operation steps of the intelligent model, a clear view of the system resource use condition is provided, the system resource occupation condition and changes of the system resource occupation condition can be visually displayed through the testing method, specific code lines causing sudden increase or sudden decrease of the resources are marked, and a user is helped to rapidly position performance bottlenecks and optimization points. According to the method, important reference is provided for intelligent model optimization on a domestic platform, and the technical progress and application development of the domestic intelligent computing platform can be promoted.
Owner:NAT UNIV OF DEFENSE TECH

Building waste separating device

The utility model relates to the technical field of building waste treatment, and provides a building waste separating device which comprises a transversely-distributed long-strip-shaped bottom support, a transversely-distributed vibration feeding plate is installed on the bottom support, and a metal adsorption mechanism is arranged on the bottom support and over the vibration feeding plate. The metal adsorption mechanism comprises side fixing plates symmetrically distributed on the two sides, an adsorption belt distributed between the side fixing plates on the two sides, five tensioning driving rollers installed between the side fixing plates on the two sides and tensioning the whole adsorption belt into an inverted right trapezoid shape, and two plate-shaped electromagnets installed in the side fixing plates on the two sides. The device can quickly and accurately separate metal substances and building waste residues in the crushed building waste, improves the efficiency and quality of building waste treatment, and has important environmental protection significance and economic value.
Owner:葛君

An OPGW cable galloping monitoring noise reduction method based on matched grating sensing

ActiveCN115540994BPromote technological progressgood signal to noise ratioSubsonic/sonic/ultrasonic wave measurementUsing wave/particle radiation meansPattern recognitionGrating
The application provides an OPGW cable galloping monitoring noise reduction method based on a matching grating sensor, comprising the following steps: using a matching grating array to perform distributed monitoring on a cable, and collecting a galloping signal on a monitoring line; selecting a sensing unit in the middle of a pair of gratings in the matching grating array as a reference sensor, using an interference demodulation algorithm to demodulate an optical phase change amount caused by environmental changes as an input end 1 of an adaptive noise cancellation algorithm; using the interference demodulation algorithm to demodulate an optical phase change amount caused by galloping as an input end 2 of the adaptive noise cancellation algorithm; and performing adaptive noise cancellation based on the input end 1 and the input end 2 signals through the adaptive noise cancellation algorithm. The application can obtain a sensing result with a better signal-to-noise ratio, improve the monitoring result, help to improve the technical progress of the optical fiber sensing technology in the power monitoring industry, and has important engineering value.
Owner:ELECTRIC POWER SCI RES INST OF STATE GRID XINJIANG ELECTRIC POWER CO LTD +2

Cleaning equipment for semiconductor processing

The invention discloses a cleaning device for semiconductor processing, the cleaning device for semiconductor processing is used for cleaning wafers, the cleaning device for semiconductor processing comprises a machine body, a first cleaning assembly, a placing box, a clamping assembly and a second cleaning assembly, the first cleaning assembly is used for cleaning fine particles on the surfaces of the wafers, and the first cleaning assembly comprises a pair of mounting plates; the pair of mounting plates are symmetrically and fixedly connected to an upper panel of the machine body, rotating wheels are rotationally connected to the mounting plates, a first transmission belt is arranged on the rotating wheels, a plurality of fixing blocks are fixedly connected to the side wall of the first transmission belt, and wafers are placed on the pair of fixing blocks. Compared with the prior art, the cleaning equipment for semiconductor processing has the advantages that assembly line type cleaning of wafers can be achieved, the cleaning efficiency is greatly improved, the production time and cost are reduced, particles and organic pollutants on the surfaces of the wafers can be effectively removed at the same time, the cleaning quality is remarkably improved, and the service life of the wafers is prolonged. Therefore, the technical progress and development of the semiconductor industry are effectively promoted.
Owner:SUZHOU GRANI VISION TECH CO LTD

Road and bridge surface crack defect detection method

The invention relates to the technical field of road and bridge detection, and particularly discloses a road and bridge surface crack defect detection method, which comprises a moving assembly used for carrying out moving detection on road and bridge surface crack defects, according to the method, the thermal imager is adopted to detect the crack defects on the surface of the road bridge, and compared with a traditional detection method, the thermal imager is less affected by the external environment, so that the thermal imager can keep higher detection precision and stability in a complex and changeable environment; correspondingly, the method has the advantages of high detection precision, wide detection range, non-contact detection, high detection speed, data visualization, small influence of external environment and the like on the surface crack defects of the road and the bridge, so that the working efficiency of detecting the surface crack defects of the road and the bridge by workers is improved; and workers can conveniently and accurately position and maintain the crack defects on the surfaces of the roads and the bridges.
Owner:WEIHAI BOYU ENGINEERING CONSULTING CO LTD

A geological drilling rotary drilling rig coring auxiliary device

ActiveCN224396441Uquick tightenQuick operabilityDrilling rodsDrilling casingsRock coreMechanical engineering
The utility model relates to a kind of geological drilling rotary drilling rig coring auxiliary equipment, including drill pipe knob ware and core tube auxiliary car, the drill pipe knob ware can continuously whole circle rotation and tighten or loosen drill pipe, the core tube auxiliary car can realize the automatic drilling of core tube and downhole function.The utility model is innovated by drill pipe knob ware and core tube auxiliary car, realizes the efficient collaborative operation of both, from the installation and disassembly of drill pipe in geological drilling operation and the transport of core tube these two key links, successfully solves the problem of low efficiency, many security risks under traditional operation mode, improves the efficiency, security and fluency of geological drilling operation in all directions.
Owner:鹤庆北衙矿业有限公司

A multifunctional measuring device for construction engineering management

The present invention discloses a multifunctional measuring device for construction engineering management, which belongs to the technical field of building wall measurement, and comprises a driving mechanism, a point marking mechanism, a defect self-checking mechanism and a multifunctional control system. The present invention can realize accurate identification of uneven positions on the surface of building walls and locate the specific positions of the uneven positions. Compared with traditional measuring tools, it can capture the changes in unevenness and can effectively improve the measurement accuracy. Secondly, the operation of the device is simple and fast, which can significantly shorten the measurement time and improve the measurement efficiency, save precious time and manpower costs for construction engineering management, and provide strong support for the digitalization and intelligent development of the construction industry. With the continuous advancement of technology and the continuous promotion of its application, the device is expected to become one of the standard measuring tools in the construction industry in the future, and promote the technological progress and development of the entire industry.
Owner:JUSTICE ENG MANAGEMENT CONSULTING CO LTD

Lightweight high-temperature-ablation-resistant thermal insulation material and preparation method thereof

The invention belongs to the technical field of composite materials, and particularly relates to a lightweight high-temperature-ablation-resistant thermal insulation material and a preparation method thereof, and the formula of the lightweight high-temperature-ablation-resistant thermal insulation material comprises 100 parts of hollow glass beads, 30-60 parts of phenolic resin, 10-30 parts of alumina powder, 10-30 parts of anhydrous borax, 10-30 parts of alumina fibers and 5-10 parts of an accelerant. The thermal insulation material has the characteristics of light weight, high strength, thermal insulation and ablation resistance, and can be directly used for preparing special-shaped parts with complex shapes through autoclave molding, compression molding and the like.
Owner:BAODING KAIBORUI MACHINERY MFG

Metal-oxygen vacancy dual-site synergistic catalyst, preparation method and application thereof

The present invention discloses a metal-oxygen vacancy dual-site synergistic photocatalyst, a preparation method and an application thereof for driving ammonia and methanol to construct a carbon-nitrogen bond. The preparation method of the photocatalyst comprises the following steps: (1) dispersing the catalyst in deionized water; (2) preparing a solution A; (3) taking an appropriate amount of the solution A and adding it to the catalyst dispersion, stirring it fully to obtain a yellow precursor solution; (4) placing the obtained precursor solution in an oven for drying to obtain a yellow precursor powder; (5) reducing and heat-treating the yellow precursor powder to obtain a metal-oxygen vacancy dual-site synergistic photocatalyst. The present invention develops a metal-oxygen vacancy dual-site synergistic photocatalyst and is used to drive ammonia and methanol to mildly generate formamide. This strategy can not only reduce energy consumption and improve product synthesis efficiency, but also turn waste into treasure and achieve high-value conversion.
Owner:CHENGDU YALIAN TECH CO LTD

Intelligent extraction method and system for drilling cost parameters based on natural language processing technology

The invention provides a drilling cost parameter intelligent extraction method based on a natural language processing technology, and relates to the technical field of artificial intelligence and natural language processing, and the method comprises the steps: building a cost parameter standardized form, and carrying out the standardized definition of the form according to the requirements of a drilling project cost file; establishing a mapping relationship between the standardized parameters and scheme design contents, and forming a standardized form database model; an identification rule for data extraction is formulated, wherein the identification rule comprises inclusion relation matching and complete matching; keyword definitions are extracted, and professional keywords including well drilling, well logging, well logging, well cementation and the like are defined and recognized; performing traversal identification in the document; and carrying out framework extraction by adopting a keyword extraction model to realize extraction of cost parameters. According to the invention, through efficient and high-precision acquisition of estimation and budget calculation parameters, digital and intelligent development of cost business is promoted.
Owner:PETROCHINA CO LTD

Aromatic hydrocarbon preparation system and method

The invention provides an aromatic hydrocarbon preparation system and method. The aromatic hydrocarbon preparation system comprises a methane aromatization unit, a first aromatic hydrocarbon separation unit, a CO2 hydrogenation aromatization unit, a second aromatic hydrocarbon separation unit and a CO2 production and heating unit; a product gas outlet of the methane aromatization unit is connected with a feeding hole of the first aromatic hydrocarbon separation unit, a tail gas outlet of the first aromatic hydrocarbon separation unit is connected with a hydrogen inlet of the CO2 hydrogenation aromatization unit, and a product gas outlet of the CO2 hydrogenation aromatization unit is connected with a feeding hole of the second aromatic hydrocarbon separation unit; a tail gas outlet of the second aromatic hydrocarbon separation unit is connected with a feed port of the CO2 production and heating unit, and a product gas outlet of the CO2 production and heating unit is connected with a CO2 inlet of the CO2 hydrogenation aromatization unit. According to the aromatic hydrocarbon preparation system provided by the invention, by effectively realizing the combination of aromatic hydrocarbon preparation through methane aromatization and aromatic hydrocarbon preparation through CO2 hydrogenation aromatization, the energy utilization efficiency is improved, and the yield and selectivity of aromatic hydrocarbon are remarkably improved.
Owner:PETROCHINA CO LTD +1

A cleaning apparatus for semiconductor processing

ActiveCN119634286BEfficient removalPromote technological progressWaferProcess engineering
The application discloses a kind of semiconductor processing cleaning equipment, for cleaning wafer, semiconductor processing cleaning equipment includes machine body, further include: first cleaning component, placement box, clamping component and second cleaning component, first cleaning component is used to clean the fine particle on wafer surface, first cleaning component includes a pair of mounting plate, a pair of mounting plate is fixedly connected on the upper panel of machine body, rotationally connected with rotating wheel on mounting plate, rotating wheel is equipped with first transmission belt, a plurality of fixed blocks are fixedly connected on the side wall of first transmission belt, wafer is placed on a pair of fixed blocks.Compared with prior art, a kind of semiconductor processing cleaning equipment of the application can realize the flow line type cleaning of wafer, not only greatly improve the cleaning efficiency, reduce production time and cost, but also can effectively remove the particle and organic contaminant on wafer surface simultaneously, significantly improve the cleaning quality, to effectively promote the technical progress and development of semiconductor industry.
Owner:SUZHOU GRANI VISION TECH CO LTD

High-durability tree windproof and anti-toppling plastic-coated steel pipe fixing support applicable to multiple fields

The utility model relates to the technical field of fixing supports, in particular to a high-durability tree windproof and anti-toppling plastic-coated steel pipe fixing support suitable for multiple fields, which comprises a fixing rod and a connecting belt, the fixing rod comprises a supporting rod, a fixing sleeve cup and a connecting wedge block, the fixing sleeve cup is fixedly mounted at the upper end of the supporting rod, and the connecting wedge block is fixedly mounted on the fixing sleeve cup. The connecting wedge block is fixedly connected with the fixing sleeve cup in an inserted mode, the connecting wedge block is provided with a fixing wedge face used for abutting against an object to be fixed, an included angle is formed between the fixing wedge face and the axis of the supporting rod, the connecting belt is used for binding the connecting wedge block and the object to be fixed, environment protection is facilitated, and the fixing support can effectively prevent trees from falling down and is convenient to use. The fixing support reduces damage to trees, protects the environment, improves economic benefits, promotes technical progress and innovative development, adapts to market requirements, is convenient to produce and manufacture, low in manufacturing cost, good in structural rigidity, not prone to damage, firm in connection and capable of stably supporting an object to be fixed.
Owner:JIANGSU HENYUAN GARDEN SUPPLIES GROUP CO LTD

Machining method for long-journal centrifugal impeller of aero-engine

The invention relates to a machining method for a long-journal centrifugal impeller of an aero-engine, and relates to the field of centrifugal impeller machining. Through detailed preparation procedures before welding, hot pressing assembly, electron beam welding and subsequent finish machining and special treatment steps, high accuracy and reliability of the impeller assembly are ensured. According to the method, the mass of the impeller is reduced as much as possible on the premise that enough strength is guaranteed, the inertia and fuel consumption of a whole engine system are reduced, the smoothness of the blades is improved through a strict surface treatment process, and therefore the friction loss in the running process is reduced. Particularly, the double-disc clamping type welding clamp is adopted for electron beam welding, the precision and stability of the long-journal centrifugal impeller in the machining process are effectively guaranteed, and the quality of a final product is improved. In addition, the welded impeller assembly is subjected to X-ray inspection and vacuum destressing treatment, and finish machining after welding is carried out, so that the durability and safety of the impeller are further enhanced.
Owner:JIANGSU JITRI HUST INTELLIGENT EQUIP TECH CO LTD

A kind of di-o-chlorodiphenylamine methane modified castor oil polyol and preparation method thereof

ActiveCN115975162Bshorten drying timePromote technological progressSide chainRoad surface
The invention discloses a dichlorodiphenylamine modified castor oil polyol, which is prepared from 730-750 parts by weight of castor oil, 160-180 parts of triol with side chain, 40-60 parts of dichlorodiphenylamine, 60-80 parts of trimellitic anhydride, and 0.8-1.5 parts of a color reducing agent. The invention screens various reaction raw material compositions and specific reaction steps through a large number of experiments, and the prepared modified castor oil polyol is matched with an isocyanate curing agent to make a road anti-skid coating, which can greatly shorten the non-stick tire drying time and improve the bonding strength, and has achieved good technical progress.
Owner:JIANGSU SANMU GRP CORP +1