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Steam-electricity double-drive multi-shaft compressor unit connected through double clutches and control method of steam-electricity double-drive multi-shaft compressor unit
PendingCN121854441AMaximize direct utilizationavoid wastingPump componentsPump controlElectric machineDrive shaft
The invention relates to a multi-shaft compressor unit and a control method thereof, in particular to a steam-electricity double-drive multi-shaft compressor unit connected with double clutches and a control method of the steam-electricity double-drive multi-shaft compressor unit. The technical problems that in the prior art, a pure electricity mode, a pure steam mode and a steam-electricity double-drive mode cannot be switched on line, and when steam is sufficient, a motor cannot be disengaged, so that energy is wasted are solved. The system comprises a multi-shaft compressor, a steam turbine, a motor, a first clutch, a second clutch, a steam flow sensor, a controller and a rotating speed sensor. The multi-shaft compressor comprises a driving shaft; the driving shaft is provided with two driving ends which are respectively a first driving end and a second driving end; the output shaft of the steam turbine is coaxially connected with the first driving end through a first clutch; an output shaft of the motor is coaxially connected with the second driving end through the second clutch; and rotating speed sensors are arranged on the first driving end, the second driving end, the steam turbine and the output shaft of the motor.
Owner:XIAN SHAANGU POWER CO LTD
Ice falling prevention device for surface of cross tie beam of bridge tower
ActiveCN224148545UReduced risk of slippageblock slide outBridge structural detailsSnow trapsIce bindingTower
The utility model relates to an anti-ice-falling device for the surface of a cross tie beam of a bridge tower, which comprises a plurality of anti-ice-falling devices arranged on the surface of the cross tie beam, each anti-ice-falling device comprises an anti-ice-falling clamp, a plurality of raised fixing pieces and a plurality of extended connecting pieces, and the anti-ice-falling clamps comprise a first anti-ice-falling clamp and a second anti-ice-falling clamp. The first anti-ice-falling clamp and the second anti-ice-falling clamp are fixedly arranged on the edges of the left side and the right side of the cross tie beam respectively, and the first anti-ice-falling clamp and the second anti-ice-falling clamp are connected into a whole through the extending connecting pieces and the protruding fixing pieces and fixed to the upper surface of the cross tie beam. The limiting baffles arranged at certain intervals prevent solid accumulated ice from sliding on the upper surface of the bridge tower cross tie beam, meanwhile, lateral drainage of the upper surface of the cross tie beam cannot be hindered, the phenomenon that a traditional drainage channel becomes a'water blocking channel 'due to icing is avoided, and the size of a single block of ice accumulated on the upper surface of the cross tie beam is limited within a safety threshold value as much as possible.
Owner:WUHAN UNIV OF TECH +2
Method and system for precise active reserve control of grid-connected photovoltaic power station
The application discloses a network-constructed photovoltaic station precise active reserve control method and system, relates to the photovoltaic power generation and power system control technical field, and the method comprises the following steps: in the MPPT mode, a global iterative search is carried out on the power-voltage curve of the photovoltaic array by using an intelligent optimization algorithm, and the maximum power point of the photovoltaic array is located; whether the intelligent optimization algorithm converges to the maximum power point is judged by using a multi-index convergence monitoring condition, and the target reserve power is calculated in the case that the intelligent optimization algorithm has converged; the network-constructed photovoltaic station enters a weighted soft switching transition period, and the duty cycle is adjusted based on a dynamic weight; after the weighted soft switching transition period ends, the network-constructed photovoltaic station is switched to an active reserve mode, and in the case that the environment mutates, the network-constructed photovoltaic station is switched back to the MPPT mode. The application realizes precise reservation, stable tracking and fast frequency modulation response of the active reserve of the network-constructed photovoltaic unit.
Owner:NANJING NORMAL UNIVERSITY
A control method and device of a rod wire loop accumulator and a storage medium
The embodiment of the application provides a control method and device of a rod wire loop device and a storage medium, the control method comprises the following steps: determining a loop starting time of the loop device according to a rolling piece running speed of a target rolling piece and a downstream rack biting time; determining a real-time loop height value according to the loop starting time, a loop starting initial height, a steady-state target loop height and a ramp rising time, and controlling the loop device to start the loop according to the real-time loop height value; acquiring a real loop height value of the loop device, and correcting an upstream rack running speed according to the real loop height value and the real-time loop height value; and when a tail of the rolling piece leaves the upstream rack, the loop device is controlled to fall back according to a tail loop closing target height. The method realizes adaptive control of the rod wire loop.
Owner:CERI DIGITAL TECHNOLOGY (BEIJING) CO LTD +1
Motor control method and motor control system for construction machinery
PendingCN121799172AGuarantee current demandAvoid unexpected circuit breakerSpeed controllerElectric devicesElectrical batteryTotal current
The invention relates to the technical field of engineering machinery, and provides a motor control method and system for engineering machinery, and the method comprises the steps: determining a total current allowable value of a DC side of a whole vehicle according to the fusing current of a battery fuse; calculating the total current budget of all walking motor controllers based on the total current allowable value and the real-time working current of the oil pump motor controller; and distributing a direct current side current limit value corresponding to each walking motor controller according to the total current budget, and issuing the direct current side current limit value to the corresponding walking motor controller, so that the walking motor controller controls the output torque according to the direct current side current limit value. According to the invention, when the total current is limited, the current demand of the oil pump motor is guaranteed preferentially, so that the continuity of core operation actions such as excavation and lifting is ensured, smooth intervention can be carried out before the total current is close to a safety threshold, fundamental protection jump from passive fusing to active prevention is realized, and the safety of the oil pump motor is ensured. And the operation safety and reliability of the whole vehicle under complex working conditions are improved.
Owner:NANJING HENGLI INTELLIGENT TECH CO LTD
Steel pipe pile support structure
The utility model discloses a kind of steel pipe pile supporting structures, mainly include side slope, concrete layer, two pipe pile row groups and protective layer, the water surface of side slope and backwater surface are supported and reinforced by pipe pile row group, and prevent direct impact of water flow, simultaneously, by protective structure and concrete layer on the bottom and both sides waist surface of side slope are covered and protected, further improve the stability of side slope structure, and prevent soil layer from being impacted by water flow, thereby the overall of supporting structure is relatively stable, not easy to be affected by water flow, and the laying equipment of steel pipe pile is relatively mature, operation is relatively simple, without more artificial simultaneously, to improve the efficiency of construction.
Owner:SINOHYRDO ENG BUREAU 3 CO LTD
Quick and movable gangue blocking wall for filling gangue behind support
ActiveCN224161755Ureduce the overall heightquick installationMining devicesMaterial fill-upProcess engineeringMechanical engineering
The utility model relates to the technical field of coal mine filling mining, in particular to a fast and movable waste rock blocking wall for filling waste rock behind a support, and mainly solves the technical problems that an existing waste rock blocking wall is poor in structural stability, time-consuming and labor-consuming to build and poor in flexibility. The fast and movable type waste rock blocking wall comprises a bottom plate used for being attached to the ground of a roadway; the wall body assembly comprises a fixed wall body and spliced wall bodies, the bottom of the fixed wall body is hinged to the bottom plate, a hinged shaft is arranged in the width direction of the bottom plate, the number of the spliced wall bodies is at least one, the spliced wall bodies are detachably fixed to the upper portion of the fixed wall body, and the fixed wall body and all the spliced wall bodies form a complete wall body used for blocking waste rock; the supporting assembly comprises a telescopic rod and a locking piece, the telescopic rod is perpendicular to the width direction of the bottom plate, one end of the telescopic rod is hinged to the bottom plate, the other end of the telescopic rod is hinged to the fixed wall, and the locking piece is used for locking the length of the telescopic rod. The device is high in structural stability, easy and rapid to build and high in flexibility.
Owner:SHANXI JINCHENG ANTHRACITE COAL MINING GRP CO LTD
A high-efficiency and energy-saving crushing chamber structure for a stone crusher
PendingCN122076555AEffectively absorb impact energyGuaranteed movement trackGrain treatmentsElectric machineWorking environment
This application relates to the field of stone crusher technology, specifically disclosing a high-efficiency and energy-saving stone crusher crushing chamber structure, including a crushing chamber body, a power mechanism, and a return spring. The power mechanism includes a drive motor, belt, pulley, drive rod, eccentric wheel, and eccentric shaft. The power mechanism is arranged on the outer surface of the crushing chamber body, and the return spring is arranged in the inner cavity of the crushing chamber body. This invention uses protective components to buffer and intercept high-speed flying stone materials, preventing stone materials from flying out of the machine and effectively absorbing the impact energy of the stone materials. It can issue an alarm when a large-force splash occurs, facilitating maintenance by operators. The anti-clogging component can actively guide and assist the discharge of materials in the crushing chamber, disturbing the accumulated materials from different angles. Smooth discharge can also reduce the frequency of manual unclogging, improve the working environment, and enhance production safety and automation levels.
Owner:HEBEI JIARUI NEW BUILDING MATERIALS TECH CO LTD
An AI-based DDR5 memory interface chip adaptation method and system
The application relates to the technical field of chip design, in particular to an AI-based DDR5 memory interface chip adaptive method and system.The method comprises the following steps: obtaining a configuration instruction stream, extracting current and historical configuration instructions, and predicting target pins, switching time and target modes.Before the switching time, target electrical parameters are calculated according to pin electrical characteristics, historical switching records and channel load characteristics.During the switching, the target parameters are loaded and the temporary impedance matching network is switched in.After the switching, a fine-tuning increment is generated according to the deviation of the signal quality and the threshold value, and the updated electrical parameters are obtained by superposition, and the matching network is disconnected after the updated electrical parameters are written back to the register.According to the timing error and the fine-tuning increment generated by multiple switching, the weight parameters are updated and deployed back to the chip.Through AI prediction and the dynamic switching and fine-tuning of the temporary impedance matching network, seamless, stable and low-delay mode switching of the memory interface chip in the reconfigurable computing system is realized.
Owner:GUANGDONG QIMINGXIN STORAGE TECHNOLOGY CO LTD
Workover treatment efficient dismounting device based on hydraulic boosting system and operation method
PendingCN121875628AImprove work efficiencyEliminate operational safety hazardsDrilling rodsDrilling casingsSet screwHydraulic pump
The invention discloses a workover treatment efficient dismounting device based on a hydraulic boosting system and an operation method. The workover treatment efficient dismounting device comprises a supercharger and a back striking wrench. The supercharger comprises a shell, an oil way core, a throttling valve, an overflow valve, a control valve and a filter are installed in the shell, a supercharging module, an operating handle, an input inlet, an input outlet, a pressure measuring connector, an output inlet and an output outlet are installed outside the shell, the operating handle is connected with the control valve, and the supercharging module is connected with the filter. The back beating wrench comprises a bent handle, and the head of the bent handle is connected with a jackscrew. According to the invention, the function of dismounting rusted screws by using the low-pressure hydraulic pump of the workover rig in a manner of driving liquid with liquid is realized, the operation construction efficiency is improved, and the potential safety hazard of operation is eliminated.
Owner:CHINA NAT PETROLEUM CORP +1
Intelligent integrated power supply system based on multi-source cooperation and control method
PendingCN122092481Alow cycle lifeImprove dynamic response performanceBatteries circuit arrangementsElectric powerElectric capacityHigh energy
This invention relates to the field of power management technology, and particularly to an intelligent integrated power system and control method based on multi-source collaboration, including a main power module, a backup power cluster, an energy management unit, a voltage adaptation module, a status monitoring unit, a communication module, and a load interface. Compared to existing technologies that typically use a single type of battery pack as a backup power source, which suffers from slow response speed and difficulty in withstanding instantaneous high-power surges, this invention employs a heterogeneous energy storage system composed of parallel lithium battery packs and supercapacitor modules as the backup power cluster, and uses a bidirectional DC / DC converter for intelligent control. This solution fully leverages the different advantages of lithium batteries (high energy density) and supercapacitors (high power density and rapid response), enabling the system to provide both long-term backup power support and instantaneous high-power discharge, thereby significantly improving the dynamic response capability, power support reliability, and overall service life of the backup power source.
Owner:YANTAI HAIFA ELECTRIC SCI CO LTD
Brush assembly and photovoltaic cleaning robot
The utility model provides a brush assembly and a photovoltaic cleaning robot. The brush assembly comprises a robot body, a camera and a plurality of brushes. The robot body is provided with a bottom plate, and a gap is formed between the bottom plate and the external photovoltaic surface. The camera is mounted on the bottom plate, and the camera shooting end of the camera is used for downwards shooting the photovoltaic surface; the plurality of brushes are mounted on the same bottom plate and arranged on the peripheral side of the camera, each brush comprises a mounting part and a brush part, and the mounting part is detachably mounted on the bottom plate; the brush part extends downwards from the mounting part, and the lower end of the brush part is close to the photovoltaic surface and is used for preventing foreign matters on the photovoltaic surface from getting close to the camera; the plurality of brush parts are arranged in the annular direction or the square direction to form an outer side protection area of the camera, so that the periphery of the camera is protected, the plurality of brush parts can conveniently prevent external foreign matters from impacting the camera, the camera is prevented from being damaged, and the use performance of the camera of the photovoltaic cleaning robot is ensured.
Owner:SHENZHEN XIAOWAN INTELLIGENT CO LTD
滤筒清洗设备
Owner:BEIJING 21VIANET DATA CENT
An adaptive constant current control method and system for a DC-DC converter power supply
The application relates to the technical field of power supply circuits, and particularly discloses a self-adaptive constant-current control method and system for a DC-DC direct-current conversion power supply, wherein the output voltage is acquired in real time and compared with a plurality of preset voltage thresholds, the interval where the output voltage is located is identified, the input current constant-current given value is reduced according to a first step value in response to the output voltage rising in the voltage limiting zone, the input current constant-current given value is reduced according to a second step value in response to the output voltage rising in the current sharing zone, and the first step value is greater than the second step value, so that the voltage overshoot caused by load shedding is quickly inhibited, the stable control of the output voltage is brought, the dynamic response capability of the system is improved, and the risk of damage of power devices due to overvoltage is reduced.
Owner:SICHUAN INJET ELECTRIC CO LTD
A semi-automatic coffee machine extraction pressure maintaining mechanism
The application discloses a kind of semi-automatic coffee machine extraction pressure keeping mechanism including powder pressing handle, transmission gear, lifting frame with vertical rack and fixed ratchet disc;Brewing powder pressing head is installed at the lower end of lifting frame;Powder pressing handle is connected with transmission gear, and transmission gear is engaged with vertical rack, so that when powder pressing handle drives transmission gear, brewing powder pressing head moves up and down with lifting frame;Ratchet disc is provided with one-way ratchet by blocking surface and inclined sliding surface, and lock slot is formed between adjacent one-way ratchet;Control key and lock pin are provided on powder pressing handle, and control key controls lock pin to enter or exit lock slot;During the rotation of powder pressing handle, lock pin enters lock slot and jumps on continuous multiple inclined sliding surfaces with rotation;Blocking surface prevents reverse rotation of powder pressing handle to complete self-locking;It can be rotated smoothly in positive direction, and direction is automatically locked without additional operation, and individualized accurate selection of pressure can be realized.
Owner:宁波爱佳电器有限公司
An automatic over-the-wire deployment sled
The application discloses an automatic overline pay-off trolley and relates to the technical field of cable overhead installation. The automatic overline pay-off trolley comprises a frame body arranged on a pay-off trolley body, a plurality of pulleys rotatably connected to the frame body, two groups of protection mechanisms arranged on the two sides of the pulleys and fixed to the side walls of the frame body, and can protect the pulleys when a walking plate is pulled by a traction rope and a cable passes through the pulleys. Each group of the protection mechanisms comprises a mounting frame fixed to the side wall of the frame body through a connecting frame. The automatic overline pay-off trolley can avoid the impact of the walking plate on the pulleys, and can make the walking plate pass above the pulleys without contacting the pulleys, so that the pulleys are protected, the service effect and the service life are ensured, and after the cable is conveyed on the pulleys, the cable on the pulleys is limited, so that the cable is prevented from deviating or even separating from the pulleys, and the service effect is ensured.
Owner:LIAONING POWER TRANSMISSION & TRANSFORMATION PROJECT +3
A power equipment mounting rack facilitating maintenance of power equipment
ActiveCN224289021Ureduce shockavoid shockSubstation/switching arrangement detailsSubstation mounted on poleGear wheelElectric power equipment
This utility model relates to the field of power equipment mounting bracket technology, and provides a power equipment mounting bracket that facilitates the maintenance of power equipment. It includes: a utility pole; a main positioning plate, which is fixedly mounted on the surface of the utility pole; a first movable groove, which is formed on the front side of the main positioning plate; and a driven gear, which is movably mounted on the outer end of the first movable groove and has a first ladder fixedly connected to its right side. Compared with the prior art, the beneficial effects of this utility model are: during use, by setting an elastic buffer structure, the impact generated when the second and first ladders are closed is reduced, and the pulling force generated when the second and first ladders are opened is also weakened, thus allowing the second and first ladders to open and close slowly, thereby avoiding the impact generated between the second and first ladders during operation.
Owner:烟台东源投资有限公司
A photovoltaic inverter layered distributed installation layout optimization method facilitating operation and maintenance and upgrading
PendingCN122225528ASave inspection timeAnnual operation and maintenance labor costs reducedSingle network parallel feeding arrangementsEmergency power supply arrangements
The application discloses a photovoltaic inverter layered distributed installation layout optimization method convenient for operation and maintenance and upgrading, constructs a three-layer linkage architecture of a centralized management layer, a regional control layer and a device execution layer, the regional control layer automatically scans a photovoltaic inverter NFC electronic tag through a dynamic topology identification mechanism, realizes plug-and-play of the device and second-level topology updating, a master and standby regional control unit adopts an incremental snapshot synchronization technology, completes non-perception switching within millisecond-level time, and ensures continuity of control instructions, the system adopts an operation and maintenance efficiency index dynamic optimization algorithm, forms an adaptive optimal layout scheme, a five-dimensional health degree evaluation model is constructed by combining DC side attenuation and MPPT deviation, early warning and pre-maintenance of device failure are realized, a time-space separation gray upgrade strategy combined with power generation power prediction is deployed, batch upgrading is realized, and automatic function verification and rollback are realized, and zero risk in the upgrading process is ensured. The application solves the technical problems of static rigidity of a traditional layout and concentrated upgrading risks.
Owner:郑州祥和电力设计有限公司
Bending device and bending equipment
ActiveCN224210533UHigh forming precisionAvoid the cumbersome process of secondary correctionsPrinted circuit manufactureDomestic articlesFlexible circuitsElectrical battery
Owner:SUNWODA ELECTRONICS CO LTD
A fork assembly for a handling apparatus
The present application provides a kind of carrying equipment's fork assembly, it includes: lifting module, fork unit, connecting rod mechanism, gyro wheel unit, the backboard of the fork unit is equipped with linkage arm, the connecting rod mechanism includes: lifting connecting rod, swing bar, pull rod, the swing bar is equipped with P, N, B angle position end, the first end of the lifting connecting rod is connected with lifting module transmission, the second end is rotatably connected with the P angle position end of swing bar, the first end of the linkage arm and pull rod is rotatably connected with the N, B angle position end of swing bar respectively, to make N angle position end as the fulcrum of rotatable lifting, is lifted / descends and is swung by P angle position end traction, to lift / descend fork unit, and linkage B angle position end is swung with N angle position end as the fulcrum, to make pull rod stretch / contract, the rotatable fulcrum end of the gyro wheel unit is rotatably connected with the fork tooth of fork unit, and the linkage end is rotatably connected with the second end of pull rod, the gyro wheel unit is linked by pull rod, to be collected / dispersed at fork tooth.By this means, gyro wheel unit and fork unit are integrally linked in structure.
Owner:SHANGHAI SEER INTELLIGENT TECHNOLOGY CO LTD
A drawing coiling and unloading device
PendingCN122078954Areduce tensionStable tensionArticle deliveryWebs handlingStructural engineeringNonwoven fabric
This invention discloses a traction winding and unloading device, belonging to the field of roll material production technology. The device includes a traction device, a floating fly knife device, a dual-shaft alternating winding device, and an unloading device. The traction device has edge trimming and tension adjustment functions. The floating fly knife device is equipped with a floating roller assembly and an L-shaped flipping guide groove to achieve clamping traction during cutting and automatic knife lifting after cutting. The dual-shaft alternating winding device realizes alternating winding of the two air-expanding shafts at two workstations through a flipping disc and a clamping assembly, and is equipped with a moving pressure roller that adjusts with the roll diameter. The unloading device consists of a moving trolley, a shaft pulling device, and an unloading trolley, which can automatically complete full roll grabbing, shaft pulling, air release unloading, and transfer. This invention realizes full-process automation from traction, edge trimming, fixed-length cutting, continuous winding to automatic unloading, and has the advantages of high production efficiency, good cutting and winding accuracy, stable operation, and wide applicability. It is suitable for the continuous production of roll materials such as film, non-woven fabric, paper, and aluminum foil.
Owner:ZHEJIANG JWELL SHEET FILM EQUIP MFG CO LTD
Physical perception dynamic topology reconstruction method for large model hybrid parallel training
The application belongs to the technical field of data center network and distributed computing system optimization, and discloses a physical perception dynamic topology reconstruction method for large model hybrid parallel training, comprising the following steps: collecting training phase signals and network topology physical state variables, and constructing comprehensive effective bandwidth for the current training phase signal task; establishing a quantitative mapping relationship between the network topology physical state variables and the end-to-end delay, obtaining a logical hop number sensitivity parameter and a bandwidth sensitivity parameter, constructing a topology state index based on the comprehensive effective bandwidth, the logical hop number sensitivity parameter and the bandwidth sensitivity parameter, combining the topology state index to perform forward-looking evaluation on candidate actions, performing network topology reconstruction, recording the measured delay and network state after network topology reconstruction, and updating the parameters. The application significantly reduces the end-to-end communication delay and suppresses the long tail delay under the premise of ensuring the hardware physical deployability and control stability, thereby improving the large model training efficiency and stability.
Owner:NANJING UNIV OF POSTS & TELECOMM
Urban domestic sewage treatment device
This invention relates to the field of wastewater treatment technology, and more particularly to an urban domestic wastewater treatment device including a treatment pump station. The top of the outer arc surface of the treatment pump station is provided with a flange inlet, and the bottom of the inner arc surface of the treatment pump station near the flange inlet is connected to a conical flow guide plate. The upper surface of the conical flow guide plate is provided with an inlet in the middle. The conical flow guide plate is a double-layered structure with an arched end inside. Through a special structural design, the water flow is guided to form a slow flow state, providing sufficient reaction time for the coalescence of tiny oil droplets. This promotes the fusion of emulsified oil droplets and dispersed oil droplets to form large oil droplets. Utilizing the physical property that the density of oil is less than that of water, the oil droplets can naturally float to the surface and form a stable floating oil layer. The entire oil-water separation process does not require additional power and can be completed solely by gravity, effectively improving the oil-water separation efficiency while reducing the energy consumption and maintenance costs of the device.
Owner:THE FOURTH ENG CO LTD OF CHINA RAILWAYNO 20 BUREAU GRP +2
Vacuum bag packaging closure device
The utility model provides a kind of vacuum bag type packaging sealing device, comprising: support;Workbench, it is fixedly installed on support upper end;Positioning plate, it is fixedly installed on support one side;Sealing group, it is set in workbench upper end;Limiting group, it is set in positioning plate one side.This kind of vacuum bag type packaging sealing device, by setting limiting group and the like structure, limiting group is conveniently operated by hydraulic rod, cooperate through-hole and connecting pipe, improve the efficiency of air extraction and connection stability, also have strong versatility;Heating plate can be detached in sealing group, it is convenient to maintain replacement, heating pipe and sealing plate cooperation realize reliable heat sealing, support rod guarantee pressing plate stability, electric telescopic rod realizes automatic sealing, reduce labor intensity, overall device is efficient, convenient, stable, can guarantee vacuum packaging quality, suitable for a variety of vacuum bag, improve the efficiency and reliability of packaging work.
Owner:GUANGDONG ZHONGYUAN PACKAGING IND CO LTD
A conveying pipe for titanium dioxide production
ActiveCN122083211BEliminate the drawbacks of downtime maintenanceContinuous deliveryProcess engineeringMechanical engineering
The application discloses a conveying pipe for titanium dioxide production and relates to the technical field of pipes.The conveying pipe for titanium dioxide production comprises a pipe body, and a rotating switching mechanism for online switching and replacement of pipe function components is arranged on the side wall of the pipe body.The conveying pipe for titanium dioxide production can realize online maintenance and replacement of pipe function components without stopping and depressurizing and emptying, completely eliminates the stopping maintenance defects caused by the traditional fixed installation structure, guarantees the continuous, stable and efficient conveying of titanium dioxide wastewater, and simultaneously, the conical filter screen which can rotate with the fluid in the pipe is arranged at both ends of the mounting hole, the impact of large particle gypsum crystals and metatitanic acid particles can be effectively blocked, dynamic anti-blocking and anti-fouling protection is realized, the pipe function components are prevented from being wrapped, abraded or corroded, the service life of the heating / aeration type function components is remarkably prolonged, and the long-term stable operation of the pipe conveying system is ensured.
Owner:TIANTAI (FUJIAN) NEW MATERIAL TECH CO LTD
Address data intelligent identification system based on cloud collaboration
ActiveCN121996992Bincrease valuequality improvementTransmissionInstrumentsData streamAddress resolution
The application relates to the technical field of data processing, and specifically discloses an address data intelligent identification system based on cloud cooperation, which collects original address data from multiple terminals and forms a data stream, carries out time-dimension value decay simulation and content-dimension semantic dispersion analysis on each terminal data, respectively generates time sequence urgency and content credibility characteristic values, then maps the two to a unified space for correlation calibration, constructs a dynamic cooperation coefficient, and based on the coefficient, performs differentiated asynchronous scheduling on the data stream in the cloud: high-coefficient data immediately triggers an identification core update, and low-coefficient data is buffered and iteratively purified; the differentiated results are integrated, a mainstream change direction is identified by using density-based clustering, address resolution rules are adaptively corrected, and finally, the optimized rules are applied to output structured addresses; the method effectively unifies the real-time performance and robustness of cooperative processing, and significantly improves the accuracy and efficiency of address identification in complex scenarios.
Owner:FUJIAN WUSE SHENNIU NETWORK TECH CO LTD
A throttle valve for a hydraulic excavator
ActiveCN224380251UEffective guidance for pressure reliefavoid shockServomotor componentsMultiple way valves
This utility model discloses a throttle valve for a hydraulic excavator. The valve body has a connecting cavity in the middle, and an open first flow channel on the left side of the valve body, connected to the connecting cavity. A first valve core cavity is located below the connecting cavity and is connected to the connecting cavity. An open second flow channel is located on the right side of the valve body, connected to the upper side of the first valve core cavity. A first valve core is housed within the first valve core cavity. By incorporating a third and fourth flow channel with pressure relief function, this utility model can effectively guide the hydraulic oil to release pressure when flowing through the throttle valve, especially when the hydraulic oil viscosity is high. This avoids high pressure impacting the connecting pipeline, prevents oil leakage at pipeline connections, and extends the service life of the pipeline, demonstrating good practicality.
Owner:SHANZHONG JIANJI CO LTD
Virtual power plant scheduling method and system based on regional power utilization activity prediction
PendingCN121965797Areduce uncertaintyprofit maximizationEnsemble learningSingle network parallel feeding arrangementsSystems managementPower usage
The invention relates to the technical field of power system management, in particular to a virtual power plant scheduling method and system based on regional power utilization activity prediction. The method comprises the following steps: collecting user load data and geographic information data of a target area; dividing users into different power utilization activity types based on the geographic information data and the user load data; for each power utilization activity type, utilizing a preset machine learning sub-model to predict a power change curve of the power utilization activity of the type in a future time period; and solving an optimal control sequence of a future time period based on a preset optimization target by using the power utilization activity prediction result, and generating a scheduling instruction for distributed energy, an energy storage system or a controllable load in the virtual power plant. According to the method, load prediction is converted into activity prediction, so that the scheduling decision of the virtual power plant is not based on a fuzzy aggregation value any more, but based on a clear portrait of a future power consumption behavior, and the scheduling precision and stability of the virtual power plant are improved.
Owner:NANJING TIANSU AUTOMATION CONTROL SYST CO LTD
Dovetail groove type sliding table air cylinder intelligent control system for surge protector manufacturing
PendingCN121993460AImprove intrinsic safetyimprove securityFluid-pressure actuator componentsLoop controlControl engineering
The invention discloses a dovetail groove type sliding table air cylinder intelligent control system for surge protector manufacturing, and belongs to the technical field of fluid pressure system control, and the dovetail groove type sliding table air cylinder intelligent control system comprises a data acquisition module, a state fusion module, a risk generation module, a mapping calculation module, a loading control calculation module and an execution feedback module. Risks are perceived through multi-source information fusion, closed-loop control is carried out by cooperatively driving pneumatic flexible damping and mechanical rigid preloading, and active prediction and stable intervention of falling risks can be realized while high response speed is guaranteed.
Owner:YUEQING TAIKE ELECTRONICS
Hydraulic braking system for rail trailer and working method of hydraulic braking system
PendingCN121799461AAvoid braking overshootavoid deficienciesBraking action transmissionElectrodynamic brake systemsControl engineeringBraking system
The invention provides a hydraulic braking system for a rail trailer and a working method of the hydraulic braking system, and the hydraulic braking system comprises a position sensing module which is used for sensing the position and the speed of the trailer in real time and generating different levels of braking signals; the central processing module is in communication connection with the position sensing module and is used for monitoring the brake signals of different levels and generating brake instructions of different levels based on the brake signals of different levels; and the instruction execution module is in communication connection with the central processing module and is used for executing corresponding braking operations based on the braking instructions of different levels. The safety, reliability, maintainability and operation efficiency of the rail trailer braking system are comprehensively improved through systematized architecture design, a software and hardware combined safety strategy, redundant integration of key components and a graded collaborative braking process.
Owner:SHANGHAI INVESTIGATION DESIGN & RES INST CO LTD +1