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8832 results about "Tower" patented technology

A tower is a tall structure, taller than it is wide, often by a significant margin. Towers are distinguished from masts by their lack of guy-wires and are therefore, along with tall buildings, self-supporting structures.

Method for continuously and efficiently adsorbing and separating hydrogen isotopes

The invention discloses a method for continuously and efficiently adsorbing and separating hydrogen isotopes. The hydrogen isotopes are separated by adopting a multi-tower variable-temperature variable-pressure device operated in a simulated moving bed operation mode. When the device runs, each adsorption tower needs to sequentially execute the following steps: 1, adsorption; 2, replacement; 3, heating; 4, vacuumizing and desorbing; 5, carrying out vacuum purging; 6, pressurizing and cooling; the operation mode of the simulated moving bed is that an adsorption tower is frequently, sequentially and synchronously moved along the gas flowing direction in the tower through all gas input and output ports, so that an adsorbent phase and a gas flowing phase in the tower form countercurrent flow, and the hydrogen isotope adsorption separation efficiency is enhanced. The invention relates to a technological process of cyclic adsorption, replacement, heating, vacuum desorption, pressurization and cooling, continuous and efficient hydrogen and isotope adsorption separation is realized, multi-tower serial adsorption and replacement are adopted in the process, and separation of hydrogen isotopes (such as H2 / D2) is enhanced; and the desorption efficiency of heavy components is improved by adopting a heating and vacuumizing depressurization coupling mode.
Owner:SHANGHAI MORISEAL NEW MATERIAL TECHNOLOGY CO LTD

Pole climbing robot for wind power tower pole

The invention discloses a pole climbing robot for a wind power tower pole, which is characterized in that the robot mainly comprises a robot body, 4-8 pole climbing mechanisms, a snake-shaped swing arm and a movable studio, wherein the snake-shaped swing arm and the movable studio are mounted on one side of the robot body; the robot body is an annular body formed by combining two semicircular cambered bodies or three equal cambered bodies; the diameter of an internal ring of the circular body is matched with the diameter of the wind power tower pole; the pole climbing mechanisms mainly comprise upper foot wheels, lower foot wheels, connecting arms, driving gears, thrust screw rods, nut gears and supporting seats; the upper foot wheels are connected with the lower foot wheels by the connecting arms through wheel shafts; the connecting arms are connected with the thrust screw rods by connecting pin shafts on the connecting arms, and form movable hinges; the 4-8 pole climbing mechanisms are distributed in the circular robot body uniformly; the snake-shaped swing arm consists of three swing arm parts, namely a large arm, a middle arm and a small arm; and the movable studio comprises two paralleled linear guide rails, a walk driving device and an operation room.
Owner:HEBEI UNIV OF TECH

Safety monitoring system of high transverse supporting system for cable-stayed bridge man-shaped tower column construction

The invention discloses a safety monitoring system of a high transverse support system for cable-stayed bridge man-shaped tower column construction, and relates to the technical field of bridge construction monitoring, the system comprises a creeping formwork integrated sensing module used for generating a point cloud model by using a mechanical arm integrated on a hydraulic creeping formwork platform and a laser radar scanning tower column curved surface, combining with a preset building information model coordinate, adaptively adjusting the mounting posture of the sensor, and outputting the mounting coordinate position of the sensor; the optical fiber sensing network module is used for collecting original strain and temperature data by using a distributed optical fiber sensor deployed along a main stress path of the support truss; an inertial navigation fusion positioning module; a digital twinning early warning module; and an edge calculation relay module. According to the invention, a full-process monitoring chain from data acquisition to risk early warning is constructed through cooperation of multiple modules, full-period and multi-dimensional dynamic control of construction of the human-shaped tower column high transverse support system is realized, and timely perception and overall control of potential risks are ensured.
Owner:CHINA COMMUNICATIONS COMMUNICATIONS SECOND AVIATION ADMINISTRATION JILIN CONSTRUCTION CO LTD +1

Wind power tower group twinborn cooperative intelligent operation and maintenance method

The invention discloses a twinborn cooperative intelligent operation and maintenance method for a wind power tower group, and relates to the technical field of wind power generation towers, and the method comprises the following steps: S1, sensor deployment and real-time data collection; the method comprises the following steps: acquiring operation state data and environmental parameters through a sensor network deployed in each wind power generation tower in a wind power plant; s2, digital twinborn body construction and early warning are carried out; constructing a corresponding digital twinborn body for each wind power generation tower, wherein the digital twinborn body integrates a physical mechanism model and a prediction module driven by real-time data; generating a fault early warning signal and a health degree evaluation result based on the deviation between the simulation output of the digital twin and the sensor data; s3, multi-agent collaborative decision making is carried out; step S4, performing closed-loop optimization; according to the twinborn cooperative intelligent operation and maintenance method for the wind power tower group, the fault early warning precision is improved, the service life prediction error is compressed, the maintenance efficiency is improved, and the wake flow loss is remarkably reduced.
Owner:SICHUAN UNIV

Dynamic monitoring method and system for settlement and inclination of tower drum of wind generating set

The invention discloses a dynamic monitoring method and system for settlement and inclination of a tower drum of a wind generating set, and relates to the technical field of safety monitoring of wind power generation infrastructure, the method comprises the following steps: synchronously collecting inclination data and positioning data of each monitoring point, and carrying out space-time alignment to obtain a fusion data set; decoupling the dynamic elastic response of the tower drum and the steady-state deformation of the foundation from the fused data through frequency domain analysis, and further calculating the overall inclination rate, the settlement amount and the non-uniform settlement rate of the tower drum; performing safety assessment based on the calculated parameters and a preset safety threshold, and determining a basic safety state and a risk mode; and finally, generating graded early warning information and decision information including risk positioning and trend prediction according to an evaluation result. Through the above mode, the method achieves the precise separation and monitoring of the dynamic deformation characteristics of the tower drum, improves the accuracy of safety evaluation and the timeliness of early warning, and provides an effective data support for the operation and maintenance decision of a wind generating set.
Owner:HUANENG JILIN CLEAN ENERGY POWER GENERATION CO LTD TONGYU BRANCH +2

Wind power tower drum health monitoring method and system

ActiveCN121111632AMachines/enginesWind motor monitoringMaterial DegradationData ingestion
The invention relates to the technical field of wind power tower monitoring, and discloses a wind power tower health monitoring method and system. The method comprises the following steps: acquiring structural vibration signals and environmental load data of a wind power tower drum, extracting dynamic response characteristics of the tower drum, and establishing a basic monitoring data set of the running state of the tower drum in combination with the environmental load data; performing multi-dimensional decomposition processing on the basic monitoring data set, separating an inherent frequency component, a damping characteristic parameter and an external excitation coupling component of the tower drum, and constructing a first evaluation index of tower drum structure health according to the relevance between the inherent frequency component and the damping characteristic parameter; historical damage records and material degradation data of the tower drum are obtained, the historical damage records and the external excitation coupling component are subjected to time sequence alignment analysis, and a second evaluation index of tower drum damage evolution is generated; and fusing the first evaluation index and the second evaluation index, establishing a comprehensive scoring model of the health state of the tower drum, dividing the health level of the tower drum, and outputting a real-time monitoring report.
Owner:QINGDAO WUXIAO GRP

Collaborative optimization analysis method for multi-station tower drum welding

The invention relates to the technical field of process optimization, in particular to a collaborative optimization analysis method for multi-station tower drum welding. In order to solve the problem that cooperative control of tower drum multi-station welding is difficult, firstly, multi-mode sensing data of welding seam vision, arc sensing, thermal field distribution and welding voiceprint are loaded, a fusion evaluation model is constructed to obtain a welding seam deviation value and a sensor confidence score, and the health state of a sensor is judged according to a threshold value; and a corresponding fault-tolerant reconstruction control mode is triggered to obtain welding tracking control parameters, then a multi-station welding heat source model is loaded, thermal interference is decoupled in combination with the control parameters and thermal field data, multiple stations are cooperatively regulated and controlled, a cooperative control instruction is output and executed, and welding process optimization is achieved.
Owner:CHINA MCC22 GROUP CORP LTD +1

Combined truncated cone type gas-liquid redistributor

The invention relates to a combined truncated cone type gas-liquid redistributor. The combined truncated cone type gas-liquid redistributor comprises a conical wall and a connecting bottom plate. Theconnecting bottom plate is fixedly arranged at the bottom of the conical wall, and is provided with a plurality of strip-shaped folding plates; the strip-shaped folding plates are of inverted-V structures; a plurality of air holes are formed at equal intervals in both sides of each strip-shaped folding plate; a stop plate is fixedly arranged on the lateral side of the strip-shaped folding plate above each air hole, and an angle is formed between each stop plate and the lateral side of the corresponding strip-shaped folding plate; the angles between the stop plates and the lateral sides of thestrip-shaped folding plates are proportional to the distances from the stop plates to the center of the connecting bottom plate. The combined truncated cone type gas-liquid redistributor has the advantages that the strip-shaped folding plates and the stop plates are adopted to achieve a good distribution effect of washing liquid, and accordingly, the area and time of contact between gases and liquid can be increased and prolonged; the included angles between the stop plates and the lateral sides of the strip-shaped folding plates are proportional to the distances from the stop plates to the center of the connecting bottom plate, so that the differences among the flowing speeds of gases from each air hole are small, the gas distribution effect is good, poor gas-liquid distribution in a packing tower is reduced, and the gas-liquid mass transfer efficiency is improved.
Owner:湖北远春石化设备制造有限公司

Thin film tank pump tower base device

The invention discloses a thin film tank pump tower base device, and belongs to the technical field of LNG storage and transportation, the thin film tank pump tower base device comprises a base main body, the base main body is cylindrical, the periphery of the base main body is provided with a first connecting part, and the first connecting part is connected with a first shielding layer; wherein the first connecting part is annular, the first shielding layer is formed by splicing two corrugated plates, the two corrugated plates are integrally formed, a circular through hole is formed in the connected end face of the two corrugated plates, and the two corrugated plates are directly connected with the first connecting part. According to the pump tower base, the corrugated plate is integrally formed, the base body is directly connected with the specially-made corrugated plate, the problem that a conventional pump tower base needs to be in transition connection through a connecting plate is solved, the problem that the connecting plate and the corrugated plate are not smoothly connected is solved, the installation procedure of the pump tower base can be simplified, and the preparation efficiency of a thin film tank is improved.
Owner:SINOTECH ENERGY CO LTD +1

Ultrahigh bridge tower safety regulation and control method and system based on concrete time-varying effect

The invention provides an ultrahigh bridge tower safety regulation and control method and system based on a concrete time-varying effect, and relates to the technical field of bridge tower regulation and control systems. Aiming at the problems that in the prior art, the prediction accuracy of long-term internal force redistribution caused by concrete shrinkage and creep is insufficient, the coupling effect of multiple risk factors and bridge tower concrete shrinkage and creep is insufficiently considered, so that the prediction accuracy of the state of a bridge tower is low, and a maintenance regulation and control guidance basis is lacked, multi-source heterogeneous data are fused, and the prediction accuracy of the state of the bridge tower is improved. Concrete shrinkage and creep, dynamic ice impact, static ice pressure, concrete freeze thawing and ice wedging influence indexes are calculated respectively, a comprehensive risk assessment model based on machine learning is adopted for fusion, and a comprehensive risk report containing risk levels and regulation and control suggestions is generated; according to the method, the accuracy of single risk factor assessment is remarkably improved, the comprehensive prediction precision of complex coupling risks is improved, and the decision robustness and maintenance efficiency of the system in a multi-risk concurrent complex scene are enhanced.
Owner:CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP CO LTD +3

Angle steel tower bolt and double-nut mounting robot

The invention relates to the field of electric power, in particular to an angle steel tower bolt and double-nut mounting robot which comprises a climbing platform crawling along an angle steel tower, and a material supplementing device is fixed to the climbing platform and synchronously advances along with the climbing platform; a mechanical arm is further fixed to the climbing platform, a fastening device is fixed to the driving end of the mechanical arm, and the material supplementing device is located in the moving range of the mechanical arm. The fastening device comprises a fixing base fixed to the mechanical arm, a guide rail is vertically arranged on the fixing base, and a bolt fastening base and a nut fastening base are both in sliding fit with the guide rail. The nut fixing sleeve and the bolt fixing sleeve are arranged on the bolt fastening base and the nut fastening base respectively and are coaxial, and openings of the nut fixing sleeve and the bolt fixing sleeve are opposite. One-time continuous fastening operation of bolts and double nuts on a plurality of bolt hole positions of a flange plate on an angle steel tower can be achieved in one-time tower climbing operation, and the installation efficiency is high.
Owner:STATE GRID FUYANG POWER SUPPLY COMPANY +1

Multi-objective optimization design method for corrosion-resistant offshore wind power FRP-steel composite tower drum structure

The invention discloses a corrosion-resistant offshore wind power FRP-steel composite tower tube structure multi-objective optimization design method. The method comprises the following steps that a composite tower tube structure in an outer layer GFRP-steel tube-inner layer GFRP composite section form is adopted below the sea level and in a splash zone; mapping the coupling load time history to a parameterized finite element model of the composite tower tube structure; constructing a multi-objective optimization function by taking the minimization of the total manufacturing cost of the composite tower drum structure, the minimization of the total mass of the composite tower drum structure and the maximization of the total volume proportion of the GFRP material of the composite tower drum structure as objectives; and establishing a constraint evaluation system, carrying out iterative optimization on the multi-objective function by adopting a fast non-dominated sorting genetic algorithm with an elitist retention strategy, outputting a Pareto optimal solution set, and selecting a final implementation scheme. The problems that a traditional pure steel tower drum is large in corrosion loss and the design is difficult to balance multiple performance targets in the severe ocean environment can be solved.
Owner:SHENYANG UNIVERSITY OF TECHNOLOGY +1

Concrete-filled steel tube arch bridge cable-stayed buckling construction monitoring and control method based on digital twinborn system

The invention provides a method for monitoring and controlling cable-stayed buckling construction of a concrete-filled steel tube arch bridge based on a digital twin system, and the method comprises the steps: collecting the monitoring data, such as wind speed and wind direction, arch rib stress displacement, tower bottom stress, tower deviation and cable force, through a sensor; establishing a concrete filled steel tube arch bridge construction digital twinning system based on a three-dimensional model, real-time monitoring, data analysis and a visual platform; time sequence data is decomposed into different frequency components through variational mode decomposition (VMD), a bridge construction stage prediction model is established through a long short-term memory network (LSTM), and real-time accurate prediction of the construction progress and state is achieved. And secondly, based on the prediction model and on-site real-time monitoring conditions, an intelligent load adjustment construction control method based on a digital twin system is provided, and high-precision control over automatic load adjustment of cable hoisting and real-time rectification of tower displacement is achieved. The problems that in a traditional monitoring and control method, early warning is not timely, the assembling precision is insufficient, and the arch axis shape control difficulty is large are solved.
Owner:GUANGXI UNIV

Rectification mechanism and carbon disulfide production system comprising same

The invention discloses a rectification mechanism and a carbon disulfide production system containing the same. The rectification mechanism comprises an integrated rectification tower, and an inner cavity of a shell of the integrated rectification tower is sequentially divided into a function-integrated pre-separation and sulfur removal area, a main rectification and hydrogen sulfide removal area and a condensation reflux area from bottom to top in the vertical direction; the pre-separation and sulfur removal area comprises a settling tank arranged at the lower part of the shell, a gathering cover arranged above the inner wall of the settling tank, and a gas rising pipe I arranged above the gathering cover; the invention belongs to the technical field of chemical separation, and achieves the technical effects that multi-stage functions of pre-separation, main rectification, precise purification, final condensation and the like are innovatively integrated in a single tower, so that the fundamental simplification and compactness of the equipment structure are realized; in the traditional process, separate coarse removal, fine removal and finished product towers are replaced by unique expanded settling tanks in the towers, filler layers of integrated plate heat exchangers, tower tops with spiral condensation channels and side-draw systems.
Owner:SHANGHAI BAIJIN CHEM GROUP

Iron tower operation safety early warning system and method

The invention discloses an iron tower operation safety early warning system and method, and relates to the technical field related to intelligent safety early warning, and the system comprises a data obtaining unit which is used for obtaining Beidou three-dimensional coordinate data and an operation site panoramic image in real time; the operation scene model establishing unit is used for establishing a dynamic three-dimensional operation scene model; the prediction model building unit is used for tracking the motion trail of each operation target based on the coordinate data and building a prediction model fusing kinematics rules and machine learning; and the risk level judgment unit is used for carrying out risk level judgment according to the spatial position and the attribute characteristics of the intersection area and generating operation early warning information. The technical problems of insufficient safety early warning accuracy and timeliness caused by insufficient high-altitude operation target dynamic track monitoring precision and risk early warning lagging in the prior art are solved, and the purposes of accurately identifying the movement track intersection risk in real time, dynamically evaluating the safety level and improving the safety early warning efficiency are achieved. And the early warning accuracy and timeliness of the operation safety of the iron tower are improved.
Owner:TIETA ZHILIAN HEBEI CO LTD +3

Temperature effect modeling method and system for concrete tower drum

The invention relates to the technical field of data processing, and discloses a temperature effect modeling method and system for a concrete tower drum. The method comprises the steps of establishing a finite element model considering joint grading thermal resistance and prestress correction material parameters, adaptively adjusting a time step length according to a solar altitude change rate to calculate a radiation load, obtaining a convergence temperature field through bidirectional coupling iteration of a temperature field and a stress field, and extracting characteristic temperature to train a neural network to realize rapid prediction. According to the invention, the precision and efficiency of temperature effect analysis of the fabricated concrete tower drum are improved.
Owner:CHINA RAILWAY 15TH BUREAU GROUP CORPORATION LIMITED +2

Dock gate lower hinged support maintenance device and construction method thereof

The invention belongs to the technical field of underwater operation, and relates to a maintenance device for a lower hinged support of a dock gate and a construction method thereof. The device comprises a waterproof cover box, a diving barge, a hoisting system and a drainage assembly, the waterproof cover box comprises a cover body and a channel well, openings are formed in the bottom and the top of the cover body, the bottom face of the cover body is in sealed compression joint with the surrounding structure of the lower hinged support to be maintained, the channel well is connected to the opening in the top of the cover body in a sealed mode, and the top face of the channel well is higher than the water surface. The diving barge is provided with a plurality of hydraulic supporting legs capable of ascending and descending so that the diving barge can be supported in the horizontal door pit. The hoisting system comprises a tower frame and an arm frame which are arranged on the diving barge, and one end of the arm frame is located above the cover body and connected with the cover body in a pressing mode; the drainage assembly comprises a submersible pump and a drainage pipe, the submersible pump is arranged in the cover body, one end of the drainage pipe is connected with the submersible pump, and the other end is led to the water surface through the channel well. According to the method, a stable dry operation environment can be rapidly constructed at the dock gate lower hinged support to be maintained, rapid maintenance is achieved, pollution to a sea area is avoided, and operation safety is improved.
Owner:CCCC FIRST HARBOR ENGINEERING CO LTD +1

An automatic assembly and welding device for steel pipe tower components and its welding method

The present application relates to the technical fields of welding device, and discloses a kind of steel pipe tower component automatic assembly welding device and welding method thereof, comprising: V-shaped base, the V-shaped base is used to place the tower barrel to be welded;Two limiting mechanisms, two The limiting mechanism is symmetrically installed at the top of V-shaped base, for clamping and limiting the tower barrel to be welded;Pushing mechanism, the pushing mechanism is installed at one end of V-shaped base, for pushing tower barrel moves in V-shaped base;Welding mechanism, the welding mechanism is installed on V-shaped base, and located between two limiting mechanisms setting, for the butt joint between two tower barrels is welded around welding head swings back and forth, so that welding head swings and welds the butt joint of tower barrel, increase the welding width at butt joint, so as to increase the welding firmness of butt joint of tower barrel, improve the welding quality of tower barrel.
Owner:QINGDAOHAOMAIQILIN STEEL STRUCTURE CO LTD

Multi-dimensional sensing and AI combined fan blade defect detection system and method thereof

The invention discloses a multi-dimensional sensing and AI combined fan blade defect detection system and method, and relates to the technical field of fan blade detection.The system comprises a wind driven generator body and further comprises a multi-dimensional sensing module, an edge calculation module and a cloud AI module, and the wind driven generator body comprises a tower base, a generator head, a flow guide cover and blades; the generator head is installed at the top of the tower base, the flow guide cover is installed at the front end of the generator head, the blade is fixed to the flow guide cover, a fixing bolt is arranged between the blade and the flow guide cover, the multi-dimensional sensing module comprises a voiceprint sensor, an ultrasonic bolt axial force detection sensor and a temperature and vibration integrated sensor, and the voiceprint sensor is installed in the blade and on the tower base. The system has the advantages of multi-dimensional data acquisition, real-time monitoring, automatic cleaning and intelligent diagnosis, and solves the problems of single sensing dimension, poor environmental adaptability, slow fault response and lack of bolt axial force monitoring in the prior art.
Owner:HEBEI HUADIAN GUYUAN WIND POWER CO LTD

Crane assemblies and methods for erecting towers and wind turbines

A crane assembly for erecting a tower from a plurality of tower sections includes a first telescopic mast connected to a second telescopic mast. A crane is mounted on top of the first telescopic mast. The first telescopic mast is configured to increase in length from a retracted state in a first direction and includes a first clamp assembly that selectively grips portions of the tower. The second telescopic mast is configured to increase in length from a retracted state in a second direction opposite to the first direction and includes a second clamp assembly that selectively grips portions of the tower.
Owner:GE VERNOVA INFRASTRUCTURE TECHNOLOGY LLC

A method for automatically correcting deviation of a cable tower in a bridge construction process

The application belongs to the technical field of bridge construction, and provides a cable tower automatic deviation rectification method in a bridge construction process. In the bridge construction process, the deformation of the cable tower is detected in real time, and the extension and contraction states of the buckling cables on both sides of the cable tower are adjusted in real time according to the deformation, so that the deformation value of the cable tower is always within a preset deformation range, the perpendicularity of the cable tower and the force balance on both sides of the cable tower in the bridge construction process are ensured, and the problem of construction risk caused by the deviation of the cable tower is solved. Meanwhile, in the process of adjusting the extension and contraction of the buckling cables on both sides of the cable tower, the force conditions of all the buckling cables are detected and controlled in real time, so that the forces of all the buckling cables are within the corresponding preset force range, the problem of large deviation between the actual force and the design force of the buckling cables is avoided, and the problem of premature failure of the buckling cables in the later bridge use process is solved. The whole adjustment process is integrated into the bridge construction process, the construction period is reduced, and the construction progress is ensured.
Owner:SHANDONG HI SPEED CONSTRUCTION MANAGEMENT GROUP CO LTD +4

Pile foundation deformation distributed test method and system

The invention relates to the technical field of pile foundation deformation measurement, in particular to a pile foundation deformation distributed test method and system, and the method comprises the steps: obtaining a time sequence strain value sequence of sampling points of a tower pile foundation, calculating a dynamic disturbance index, extracting a quasi-static signal, and determining a long-term strain value increment through time domain trend analysis; through space-time decoupling operation, correlation between time evolution behaviors of a sampling point and a physically adjacent sampling point is compared, and a space localization index is determined; taking the spatial localization index as a confidence coefficient weight, and performing weighted distribution on the long-term strain value increment to respectively determine an adaptive global trend component and a local abnormal component; and finally, performing spatial integral operation on the global trend component and the local abnormal component to obtain two decoupled deformation curves so as to determine the deformation state. The method improves the accuracy of the deformation test.
Owner:CHINA TOWER CO LTD

Iron tower foundation safety analysis method considering dry-wet cycle effect

The invention relates to an iron tower foundation safety analysis method considering the dry-wet cycle effect. The method comprises the following steps that 1, a soil body strength degradation constitutive model is established; 2, determining iron tower foundation structure parameters and soil body parameters; 3, establishing an iron tower foundation-soil body three-dimensional geometric model by utilizing three-dimensional modeling software and rock-soil finite element simulation software; 4, applying a load transmitted to the iron tower foundation by the power transmission iron tower in the iron tower foundation-soil body three-dimensional geometric model, defining initial parameters, and establishing a rainwater seepage and dry-wet cycle coupling effect analysis model; 5, analyzing and predicting the cycle index when the safety coefficient of the iron tower foundation is reduced to a threshold value from the two aspects of tower foundation ultimate bearing performance and iron tower foundation-soil body interaction on the basis of a rainwater seepage and dry-wet cycle coupling effect analysis model; according to the method, an efficient and accurate numerical analysis means can be provided for safety assessment of the power transmission tower foundation in the collapsible loess area.
Owner:SANMENXIA POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER +1

Fan tower drum double-liquid vibration-damping liquid shaking cabin oriented to source network load storage cooperation

A double-liquid vibration-damping liquid-shaking tank for a wind turbine tower drum oriented to source network load storage coordination belongs to the technical field of wind turbine vibration-damping equipment, is a liquid-shaking damping structure externally arranged on a wind turbine main body, and comprises a wind direction plate and a liquid-shaking tank structure consisting of an annular liquid-shaking tank, a liquid partition plate, upper-layer liquid and lower-layer liquid, and the turntable fixing structure consists of a rotor and a rotor flange plate. The annular liquid shaking cabin is provided with a central through hole, is sleeved on the tower drum, is internally provided with a liquid partition plate, and is filled with two-phase liquid which has density difference and is immiscible with each other; the wind direction plate is arranged on the outer side of the annular liquid shaking cabin; the liquid shaking damping structure is fixed to the wind turbine tower fixing section through the rotor flange plate. Single shaking liquid is replaced by stably layered immiscible double liquid, the vibration reduction effect of the shaking liquid damping structure is improved, and the shaking liquid damping structure is accurately adaptive to all working conditions; and through linkage of the wind direction plate and the liquid partition plate, the vibration reduction effect of the shaking liquid damping structure is improved, the resonance effect is restrained, and the stability of the vibration reduction effect of the shaking liquid damping structure is enhanced.
Owner:POWER ECONOMIC RESEARCH INSTITUTE OF JILIN ELECTRIC POWER CO LTD +2

Intercooling tower shutter control system and method

The intercooling tower shutter control system and method have the characteristics of self-adaption and high precision in the control strategy, the system can automatically adjust the control parameters in the actual operation, and the dependence on manual intervention is reduced. The complexity of operation and maintenance is reduced, and errors and faults caused by manual operation are reduced. And the problem of hysteresis or over-regulation possibly caused by a single controller is effectively avoided. By means of double-layer control, more stable control response can be provided when complex and changeable operation conditions are processed, and system instability caused by environment or load fluctuation is reduced. Through the double-layer fuzzy controller, more accurate temperature adjustment can be realized. The first-layer fuzzy controller is responsible for processing macroscopic temperature and wind speed changes, and the second-layer fuzzy controller is used for further finely adjusting the opening error and the change rate.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Welding device special for movable angle steel tower foot

The invention relates to the technical field of welding, in particular to a welding device special for a movable angle steel tower foot. Comprising a mounting platform, a to-be-welded tower foot is placed on the mounting platform, a positioning mechanism is arranged above the outer wall of the mounting platform, and a triggering mechanism for triggering the positioning mechanism is arranged on the outer wall of the mounting platform; the positioning mechanism comprises positioning frames fixedly arranged on the two sides above the outer wall of the mounting platform, first threaded rods are rotationally arranged above the outer walls of the positioning frames, positioning pieces are slidably arranged on the outer walls of the first threaded rods, and the positioning pieces are provided with cross-shaped grooves for containing the upper portions of the junctions of tower feet to be welded. The two ends of a to-be-welded tower foot are placed between the two positioning pieces for preliminary positioning, then the positioning piece located above is pressed by moving the triggering mechanism to trigger the two positioning pieces, and therefore the two ends of the to-be-welded tower foot are stably clamped at multiple angles, workers do not need to operate a plurality of clamping units one by one, and the working efficiency is improved. And the device is more convenient to use, so that the welding efficiency of the device on the tower foot of the angle steel tower is improved.
Owner:QINGDAO ZAILI ELECTRIC POWER EQUIP CO LTD

Windproof high-stability communication iron tower

The invention discloses a windproof high-stability communication iron tower, and relates to the technical field of communication iron towers, the windproof high-stability communication iron tower comprises an iron tower body, a lifting assembly and a supporting assembly, in gale weather, a limiting unit relieves limiting of a lifting limiting block, a lifting mounting column vertically moves downwards, and a second tower body is driven to move downwards; the height of the second tower body is reduced, wind force borne by a signal communication device on the second tower body is reduced, the signal communication device is prevented from being damaged by wind blowing, the gravity center of the iron tower body is lowered due to lowering of the position of the second tower body, and the stability of the iron tower body is improved; when a lifting mounting column moves downwards, a lifting annular plate moves upwards, and when the lifting annular plate moves to the highest position, a locking unit can limit and fix the position of a movable connecting rod, so that the movable connecting rod is fixedly connected with a rotary supporting sleeve, the position of a supporting annular plate is fixed, and a plurality of supporting units support a first tower body; the anti-wind capacity of the first tower body is improved, and the anti-wind stability of the iron tower body is improved.
Owner:峻江建设有限公司

Health state assessment method and system for rock anchor rod foundation of wind turbine generator

The invention provides a health state evaluation method and system for a wind turbine generator rock anchor rod foundation, and relates to the technical field of health monitoring and intelligentization of wind turbine generator foundation structures, and the method comprises the steps: obtaining multi-source monitoring time sequence data of a target wind turbine generator rock anchor rod foundation, including anchor cable axial force, tower cylinder strain, concrete strain, environment temperature and wind load; carrying out data preprocessing on the multi-source monitoring time sequence data; based on the preprocessed multi-source monitoring time sequence data, key influence factors of the health state are analyzed and recognized, and feature time sequence data are constructed; inputting the characteristic time sequence data into a time sequence prediction model, and performing spatial-temporal characteristic extraction and anchor cable axial force trend prediction; based on the prediction result of the anchor cable axial force trend, the uncertainty is quantified through Monte Carlo simulation, and the basic health state is evaluated; according to the method, high-precision and real-time basic health state prediction and evaluation are realized through a multi-modal fusion architecture and random uncertainty quantification.
Owner:SHANDONG JIANZHU UNIV

Wind power generation and gravity energy storage combined power supply system and power supply method

The invention discloses a wind power generation and gravity energy storage combined power supply system and method, and the system comprises a wind power generation unit, a gravity energy storage unit and an intelligent control unit. The gravity energy storage unit is dynamically controlled to store or release energy according to the difference value between the wind power generation real-time power and the threshold value, so that the combined output power is stable. The gravity energy storage unit adopts a symmetrical double-slope supporting tower and double-energy-storage structural design, and bidirectional conversion between electric energy and gravitational potential energy is achieved through a clutch mechanism. And the intelligent control unit dynamically adjusts the floating threshold by combining the predicted wind speed and the historical power fluctuation rate, so that the adaptability of the system to different wind fields is improved. The intermittent problem of wind power generation is solved through cooperative control of power generation and energy storage, the fluctuation amplitude of output power is reduced, peak clipping and valley filling can be achieved through a two-way energy conversion mechanism, energy release and power supply are achieved in the power demand peak period, energy storage is achieved in the valley period, the overall energy efficiency of a power grid is improved, and waste of energy in the power generation peak period is avoided.
Owner:BEIJING YINGDONG DATA TECH CO LTD

Vibration monitoring and displacement identification method for towering steel structure based on machine vision

The invention discloses a vibration monitoring and displacement identification method for a towering steel structure based on machine vision, and relates to the technical field of towering steel structures. Comprising the following steps: S1, visual acquisition and reference calibration: arranging visual acquisition equipment in the height direction and the circumferential direction of the towering steel structure according to mechanical characteristics of a vertical stiffness mutation region and a dynamic response sensitive part of a geometric asymmetric distribution characteristic of the structure; a three-dimensional coordinate system is established based on a structure installation reference surface, fixed reference monitoring points are arranged in a tower foot symmetric area and a mast antenna root, three-dimensional coordinate data of the reference points are synchronously collected, the collection range completely covers a node concentration area and a key stress part of a structure transparent area, and a continuous image sequence of the structure surface is captured in real time; the resolution and the sampling frequency of the visual acquisition equipment are determined according to the inherent frequency of the structure and the vibration response characteristics, and calibration is completed through reference point coordinates after the equipment is installed; s2, carrying out image preprocessing and feature enhancement; S3, carrying out feature point extraction and trajectory tracking; S4, carrying out vibration displacement calculation and twin fusion; and S5, carrying out multi-source verification and structural state linkage treatment.
Owner:中建三局集团西北有限公司 +1