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11results about How to "Improve operational adaptability" patented technology
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Pre-flash tower bottom oil diversion and emergency oil return system
PendingCN121846704Aflexible allocationRelieve load pressureDistillation regulation/controlFlash distillationChemical industryMultiplexing
The invention relates to the technical field of petrochemical engineering, in particular to a pre-flash tower bottom oil diversion and emergency oil return system which comprises a switching and shunting module, a pressure mixing module and a cooperative control module. Boosting the pressure of the slurry oil and then dividing the slurry oil into a first branch flow and a second branch flow; the first branch is communicated with a first conveying pipeline, the first conveying pipeline is communicated with a wax oil mixing part, and slurry oil and product wax oil from the vacuum tower are mixed at the wax oil mixing part; the second branch is communicated with a second conveying pipeline, and the second conveying pipeline is communicated with an emergency connector. According to the invention, integrated hardware multiplexing and cooperative control are carried out on the load optimization process and the blockage emergency oil return function of the vacuum tower, and embedded active safety protection is constructed while load reduction and efficiency improvement of the vacuum tower are realized, so that the processing load and operation continuity of the device are systematically improved.
Owner:ZHEJIANG OCEAN UNIV
Air pressure indication alarm method for environment-friendly gas insulated looped network switchgear
ActiveCN119394504AAvoid errorsavoid flexibilityFluid pressure measurementMachine learningData setElectric power equipment
The invention discloses an air pressure indication alarm method for an environment-friendly gas insulated looped network switch device, and particularly relates to the technical field of power equipment protection, comprising the following steps: periodically detecting the contact resistance and gas component change condition of the environment-friendly gas insulated looped network switch device, and generating a detection data set; performing feature extraction and feature analysis based on the data set, and inputting an analysis result into a pre-trained machine learning model to obtain an equipment operation quality division result; judging whether to optimize a static preset air pressure range or not according to the operation quality division result; finally, based on the static or optimized air pressure range, air pressure indication alarm operation is executed, and the safety and reliability of the equipment in different operation states are ensured. According to the method, the moisture content quality index and the contact resistance quality index are combined, the air pressure regulation factor based on the nonlinear regulation function is designed, the air pressure upper and lower limit range is dynamically adjusted through the optimization model, and the requirements of equipment in different operation states are better met.
Owner:ZHEJIANG XINYI POWER EQUIP CO LTD
Partial power converter-based modular UPS (Uninterrupted Power Supply) parallel operation SOC (System On Chip) equalization control method
PendingCN119154481Abalanced managementExtended service lifeBatteries circuit arrangementsDc-dc conversionBattery state of chargeElectrical battery
The invention discloses a partial power converter-based modular UPS parallel operation SOC equalization control method, and aims to solve the problem that the partial power converter-based modular UPS parallel operation lacks the SOC equalization control method, so that the charging / discharging current or power difference of a UPS backup battery is large, and local hot spots or local downtime is caused. The overall utilization rate of parallel operation of the UPS is improved, and the service life of a backup battery in the UPS is prolonged. When the MPPC-UPS adopts battery constant-current charging control, an SOCcharge equalization control scheme is adopted, and a charging current reference value is changed according to the real-time SOC change of the backup battery, so that SOC equalization of the backup battery in a charging state is realized; when the MPPC-UPS adopts load constant-voltage control, an SOCIDCharge balance control scheme is adopted, a load voltage reference value is changed according to the real-time SOC change of the backup battery, and the discharge current of the backup battery is indirectly changed so as to realize SOC balance in the discharge state of the backup battery.
Owner:HEBEI UNIV OF TECH
A power distribution network operation state monitoring system and method based on digital twinning
The application relates to the technical field of intelligent power distribution network digital twinning and operation state monitoring, and discloses a power distribution network operation state monitoring system and method based on digital twinning, which comprises a collection module, a modeling module, an evaluation module, a synchronization module, a topology module, a calibration module, a verification module and an output module. The collection module acquires and synchronizes multi-source operation data, and the modeling module establishes a digital twinning model; the evaluation module compares a predicted state generated based on the model with an actual measured state, obtains residual data and twinning consistency indexes, and determines an abnormal area when the indexes are lower than a preset threshold; the synchronization module performs high-frequency synchronization and device-level modeling on the abnormal area; the topology module screens a target topology; the calibration module corrects device parameters; the verification module corrects the reliability of a measurement link through a safe perturbation; and the output module updates the digital twinning model and outputs a monitoring result. The application can improve the accuracy and reliability of power distribution network state monitoring.
Owner:ZHEJIANG YOUNENG ELECTRIC POWER DESIGN CO LTD
Horizontal passage inner wall glass installation trolley and installation method
ActiveCN121044496BImprove installation efficiencyShorten the construction periodVehicle frameAssistive equipment
Owner:CHINA ERZHONG GRP DEYANG HEAVY IND
A new milling mechanism
The utility model discloses a novel milling curve mechanism relates to part processing technical field, the utility model discloses a processing groove and workpiece, and the inside installation of processing groove has workpiece, and the upper surface of processing groove is provided with slide rail, and the upper end of processing groove is installed with mounting bracket, and one side of mounting bracket is installed with driving motor, and the output of driving motor is installed with milling cutter, and the other side of mounting bracket is installed with movable plate, and the inside connection of movable plate has connecting rod, and one end of connecting rod is connected with driving motor, and the bottom of mounting bracket is connected with sliding plate, and sliding plate and slide rail slide fit, and one side of processing groove is connected with horizontal push rod, the utility model discloses a novel milling curve mechanism, through to the milling cutter increase multi -angle adjusting mechanism and the mechanism of cooperation, can make each adjusting part in whole milling curve mechanism cooperate with each other, and the milling curve operation of horizontal, vertical and circumferential of workpiece is carried out, and single operation degree of completion is high, and the adaptability is strong.
Owner:YANTAI TIANCHENG NEEDLE MFG CO LTD
Sodium ion halide solid electrolyte composite membrane material and preparation method and application thereof
PendingCN119447438ASimplify the assembly processImprove operational adaptabilitySecondary cellsSolid state electrolyteHalogen
The invention relates to a sodion halide solid electrolyte composite membrane material as well as a preparation method and application thereof, and belongs to the technical field of solid electrolyte materials. The sodion halide solid electrolyte composite membrane material comprises sodion halide, a binder, sodium salt and a plasticizer, wherein the sodion halide is NaaMObXc, (a is greater than 0, b is greater than 0, and c is greater than 0), M is selected from transition metal elements, rare earth metal elements and the like, and X is halogen elements; based on the mass percentage of the sodium ion halide, the content of the binder is 0.5-2%, the content of the sodium salt is 5-12%, and the mass of the plasticizer is 0.1-0.3% of the mass of the sodium salt. The composite membrane material disclosed by the invention has high room-temperature ionic conductivity, is low in cost and simple to prepare, greatly simplifies the assembly process of a solid-state battery, and has very high application value in the field of secondary batteries.
Owner:GUANGDONG POWER GRID CO LTD +2
Rotatable automobile sheet metal repair bench
ActiveCN224601600UImprove the defect of being unable to moveAvoid frequent handling
The utility model provides a rotatable automobile sheet metal maintenance platform belongs to automobile sheet metal technical field, including rotating component, including base, fixedly connected in the base center's bottom pivot, the platform pivot of rotation connection in the bottom pivot top, fixedly connected in the platform pivot lateral wall's platform and fixedly connected in the platform top's support column. The utility model discloses through the setting of clamping pivot, vertical rod and clamping block, need not frequently change fixture, can adapt to multiple vehicle type maintenance demand, greatly reduce the time and cost of model change adjustment, utilize clamping pivot, bottom pivot and platform pivot to solve the problem of fixed clamping angle when large -area repair, can flexible adjustment clamping angle, easily cope with complex deformation part's repair, improved the defect that traditional maintenance platform cannot move, can be moved to the suitable operation position flexibly, avoid the repair process frequently carries the work piece, improved overall work efficiency.
Owner:SHENZHEN JIUYIXING NEW ENERGY VEHICLE TECH CO LTD
Lever transmission type moment increasing drive motor with flywheel stability
PendingCN122660321AImprove torque increasing effectImprove compactnessPermanent magnet synchronous motorElectric machinery
The application provides a lever transmission type moment increasing driving motor with a flywheel for stabilizing moment, and relates to the technical field of permanent magnet synchronous motors. The lever transmission type moment increasing driving motor with a flywheel for stabilizing moment comprises a base, an inner stator fixed on the base, a coil structure arranged in a winding slot of the inner stator, an outer rotor rotatably sleeved on the outer side of the inner stator, a central output shaft and a flywheel, and further comprises a lever transmission mechanism, wherein the lever transmission mechanism comprises an inner core, an outer rotor right side plate and a transmission protruding column, the inner core is coaxially fixed at the central position of the inner stator, and the inner hole of the inner core supports the central output shaft through a bearing. In the application, the outer rotor drives the flywheel to rotate through the transmission protruding column, the lever principle that the power arm is greater than the resistance arm is used to realize speed reduction and moment increase, and the rotational inertia of the flywheel is used to suppress the dead point torque fluctuation, so that the stable output of large torque is realized under the premise of compact structure.
Owner:杨剑婷
Polysaccharide-antibacterial peptide co-assembled hydrogel as well as preparation method and application thereof
PendingCN121944252AReduce residual riskSimple preparation processSurgical adhesivesAntimicrobial peptidesAnti bacterial
The invention discloses polysaccharide-antibacterial peptide co-assembled hydrogel as well as a preparation method and application thereof. The preparation method comprises the following steps: respectively dissolving an antibacterial peptide Temporin-SHF (SHF) and hyaluronic acid in water to obtain an antibacterial peptide solution with the concentration of 1mg / mL-50mg / mL and a hyaluronic acid solution with the concentration of 1%-10wt%; and mixing the antibacterial peptide solution and the hyaluronic acid solution in equal volume, fully stirring and uniformly mixing, and standing for 5-30 minutes to obtain the polysaccharide-antibacterial peptide co-assembled hydrogel. Hydrophobic interaction is used as a main driving force for formation of the hydrogel, hydrogen bonds and pi-pi stacking interaction provide additional structural stability, and a robust physical cross-linked network is jointly constructed; besides, the introduced SHF antibacterial peptide enables the material to have strong and broad-spectrum antibacterial ability and is beneficial to hemostasis, a multifunctional platform is finally formed, and infection can be inhibited and tissue healing can be supported while postoperative adhesion is effectively prevented.
Owner:LANZHOU UNIV
Composite medium high temperature heat pump cycle system and method
PendingCN122258513Aachieve beneficial effectsImprove temperature riseMechanical apparatusCompression machinesComposite mediaNitrogen gas
The application provides a composite medium high-temperature heat pump circulation system and method. The composite medium high-temperature heat pump circulation system comprises: a regenerator connected with a separator; a primary compressor connected with a first outlet of the regenerator and used for preliminarily compressing a nitrogen-poor gas-phase working medium; an ejector, an injection inlet of which is connected with an outlet of the primary compressor, and a material inlet of the ejector is connected with a second outlet of the regenerator; a secondary compressor connected with an outlet of the ejector; and a condenser connected with an outlet of the secondary compressor and used for heat exchange, wherein high-temperature hot water or steam generated through heat exchange is directly delivered to a next device; and supercritical fluid discharged from the condenser is returned to the regenerator for heat exchange and then reenters the separator. By introducing appropriate nitrogen into carbon dioxide as an auxiliary component, the temperature rise amplitude of the mixed working medium in the compression process can be effectively improved.
Owner:INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI