1810results about "Wind motors" patented technology

The invention belongs to the technical field of wind power equipment fault diagnosis, and relates to a wind turbine generator maintenance method based on multi-modal data fusion and a knowledge graph. Comprising the steps of obtaining text description data, component image data and equipment operation time sequence data of a wind turbine generator; predicting the residual life of the component based on the equipment operation time sequence data, and generating a residual life prediction value; performing feature extraction on the data to obtain corresponding features; performing fusion processing on the features to obtain joint feature representation; analyzing a fault evolution time sequence mode of the wind turbine generator based on the joint feature representation; performing matching retrieval in a historical case library according to a fault evolution time sequence mode; and inputting a matching retrieval result into the dynamic knowledge graph for reasoning, generating a fault traceability result, and generating a maintenance decision scheme including a maintenance priority list in combination with the residual life prediction value. According to the method, accurate fault diagnosis, automatic source tracing of root causes and dynamic optimization of maintenance strategies are realized, the operation and maintenance efficiency is remarkably improved, and the cost is reduced.

The invention discloses an electric heating deicing system and method based on machine learning prediction and adaptive adjustment, and belongs to the technical field of wind power generation. The system comprises a multi-physical sensor array and a dynamic heating execution module which are arranged on a blade. The multi-physical sensor array and the dynamic heating execution module are both connected with a CAN bus; the CAN bus is connected with an intelligent control module, a cloud collaboration platform and an edge computing node. The method comprises the following steps: acquiring historical operation data of an original unit, and preprocessing the historical operation data to obtain preprocessed data; the original unit historical operation data comprises environmental parameters and blade state monitoring data; analyzing the preprocessed data based on a machine learning algorithm, and establishing a blade icing prediction model; real-time environment parameters and blade state monitoring data are obtained, and the blade surface icing condition is predicted based on the blade icing prediction model; and determining the heating requirement of the blade based on the surface icing condition of the blade, and carrying out deicing.

The invention discloses an existing wind power blade electrothermal film deicing control method based on big data, and relates to the technical field of wind turbine generator operation control and ice prevention and removal. Frost ice / glaze ice probability output by an ice type discrimination model does not only give an alarm any more, but is directly converted into an increase / decrease coefficient constrained by boundary and monotonicity; energy can be fully put in a glaze ice scene, and overheating and over-consumption can be avoided in a frost ice scene; according to the method, the change trend of wind speed, temperature and relative humidity is introduced as modulation factors, the working condition of forming / turning glaze ice is responded in advance, and insufficient deicing caused by static threshold hysteresis is reduced; according to power deviation correction, a unit wind speed-power curve serves as a reference, a dead zone, segmented gain and accumulative saturation structure is adopted, on the premise of not depending on an external icing sensor, extrinsic performance of pneumatic degradation is closed into controlled quantity, sensitivity and stability are considered, and start-stop oscillation and duration drift are reduced.

The invention discloses a wind power generation system. The system comprises a ground device; the floating device comprises an adjusting air floating piece and a first annular air floating piece, the adjusting air floating piece is movably connected with the ground device, the first annular air floating piece is connected with the adjusting air floating piece, and a through duct is defined by the inner wall of the first annular air floating piece; the wind power generation device is arranged in the duct; and the position of the gravity center of the adjusting air floating piece in the extending direction of the duct is adjustable. According to the wind power generation system, the influence of airflow disturbance, temperature change and buoyancy lift gas leakage on the floating device can be reduced, the phenomenon that the pitching posture change amplitude is large is reduced, particularly, the included angle between the wind receiving face of the blade of the wind power generation device and the airflow direction is closer to the optimal value, the effective wind energy area flowing through the blade is increased, and the wind power generation efficiency is improved. And the fluctuation of the wind energy yield along with the posture is reduced, so that the wind energy utilization efficiency and the power generation output power are improved.

The invention provides a remote non-contact photo-thermal deicing method for the surface of a fan blade, and the method comprises the steps: carrying out the ice condition data collection of the surface of the fan blade, and obtaining multi-modal data; performing feature recognition on the multi-modal data to obtain ice condition features; constructing a three-dimensional thickness distribution model by combining natural illumination factors based on the ice condition characteristics, and generating a deicing strategy; laser deicing is carried out according to the deicing strategy, and a laser beam is adjusted and controlled through a bee colony focusing algorithm; monitoring the temperature change of the coating on the surface of the fan blade in real time so as to adjust the laser power; and carrying out deicing rate detection on the surface of the de-iced fan blade, and if the deicing rate does not reach the standard, carrying out deicing operation again until the deicing rate reaches the standard. According to the method, through fusion of multispectral imaging, millimeter wave radar, a double-flow neural network and a dynamic environment modeling technology, accurate identification of ice conditions and adaptive laser deicing control are realized, and dependence on natural illumination is removed while energy consumption is reduced.

The invention discloses an intelligent temperature control wind turbine generator blade electric heating deicing system and method, and belongs to the technical field of wind power generation. The system comprises an electric heating film arranged on a blade, a thermal infrared imager and a plurality of sensors, the electric heating film, the thermal infrared imager and the plurality of sensors are all connected with an intelligent control unit; the intelligent control unit is connected with an unmanned aerial vehicle carrying a laser radar and is used for regularly scanning ice layer distribution on the surface of the blade; and the electric heating film adopts zone control. The method comprises the following steps: acquiring environmental parameters and blade state monitoring data, and starting a deicing system; the method comprises the following steps: collecting deicing data from a deicing system in real time and preprocessing the deicing data to obtain preprocessed deicing data; establishing an intelligent temperature control model based on the environmental parameters and the blade state monitoring data; and inputting the pre-processed deicing data into an intelligent temperature control model, calculating to obtain dynamic adjustment data of the heating power, and transmitting the dynamic adjustment data to a deicing system for deicing.

The invention relates to the technical field of wind driven generator control, in particular to a thermal management system and method for a wind driven generator, and the system comprises a data collection layer, a prediction module, a digital twin model, an intelligent control and diagnosis engine, and a heat dissipation execution mechanism. In the prior art, an open-loop or simple feedback control scheme based on a real-time temperature threshold value is mainly adopted, the problem of response lag exists, and all heat dissipation parts always work independently and lack cooperation, so that the energy efficiency is low; according to the invention, a closed-loop intelligent thermal management scheme based on a digital twin model is adopted, and real-time simulation and future state prediction are carried out by constructing virtual mapping of a generator thermal system, so that a control system can actively and cooperatively manage all heat dissipation resources according to a simulation result; the method has the core advantage of converting passive into active, and can intervene in advance before excessive accumulation of heat, so that collaborative optimal control of all parts of the system is realized, and the accuracy, timeliness and overall energy efficiency of heat management are remarkably improved.

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.

The invention provides a method for replacing a bearing on a wind driven generator tower. The method comprises the following steps that S1, accessories at the N / D end of a motor are disassembled; s2, air gap filler strips are cushioned between the stator and the rotor; s3, mounting a tower bearing replacement tool, leveling and tensioning the axle suspension bush through a screw rod of the tool, adjusting the transverse position of the rotor, jacking the axle suspension bush together with the rotor by using a jack, adjusting the transverse and vertical positions of the rotor, and detecting the uniformity of air gaps; s4, disassembling an end cover of the N / D end of the motor, installing an inner side tool, disassembling an outer side tool, lifting out the end cover, and replacing a bearing; and S5, after the N / D end cover of the motor is reinstalled according to requirements, the air gap filler strip is drawn out, and the N / D end accessory is installed. According to the method, the overall tower descending cost of the motor is saved, the maintenance efficiency of motor bearing replacement and the like is improved, the safety risk possibly existing in the overall tower descending overturning disassembly process of the motor is avoided, and the product quality in the maintenance process of motor replacement and the like is better guaranteed.

The invention provides an innovative design of a corrugated pipe damper integrated on a sliding main bearing aiming at the problems of transmission system abrasion and fatigue damage caused by vibration energy accumulation of the wind power main bearing under a complex wind load, and belongs to the technical field of wind power generation equipment. A traditional main bearing damping structure is low in energy absorption efficiency, insufficient in dynamic response and difficult to effectively suppress vibration. Through collaborative design of a corrugated pipe multi-stage laminated structure and a fluid energy dissipation channel, a composite mechanism for dynamically dissipating vibration energy is formed. The core of the damping device is composed of a corrugated pipe assembly, damping cavities and a main shaft adaptive structure, impact energy is absorbed through axial flexible deformation of the corrugated pipe, vibration attenuation is achieved in combination with reciprocating flowing of damping fluid in the multiple cavities, and low-frequency swing and high-frequency harmonic waves of a main bearing are synchronously restrained. According to the design, the bearing capacity is guaranteed, vibration transmission is remarkably reduced, the service life of the main bearing is effectively prolonged, the operation reliability of a unit is improved, and the damping requirement of a core transmission system of a high-power wind turbine generator is met.

The invention relates to a blade decommissioning tool for decommissioning an installed wind turbine blade. The blade decommissioning tool comprises cutting means for cutting through the wind turbine blade in a transversal direction perpendicular to a longitudinal direction L of the wind turbine blade to form a proximal and distal part of the wind turbine blade; lowering means for lowering the distal part of the wind turbine blade relative to the proximal part; support means for supporting the cutting means and the lowering means; and clamping means for clamping the support means to wind turbine blade.

The invention relates to the technical field of wind turbine generator maintenance, and discloses a wind turbine generator blade unmanned aerial vehicle deicing assembly and method.The wind turbine generator blade unmanned aerial vehicle deicing assembly comprises an unmanned aerial vehicle, and a laser radar and an installation shell integrating an ultrasonic transducer, a pulse nozzle and a hydraulic pump are installed at the bottom of the unmanned aerial vehicle. The deicing control system obtains focus space coordinates and interface resonance frequency of the blade surface by using a space state sensing module; the stress field focusing module calculates the phase delay amount of the ultrasonic transducer, compensates the pose deviation of the unmanned aerial vehicle by adjusting the emission time sequence, and drives the ultrasonic transducer to generate resonance stress on an ice layer-skin interface; and the sound stream synchronous control module determines a jet flow triggering moment according to synchronous phase locking solution, drives a pulse nozzle at an instantaneous negative pressure phase point of a sound wave period to inject a small amount of deicing fluid into an interface crack, and generates shear stress to induce the interface crack to expand and peel off an ice layer. Accurate throwing of deicing energy is achieved, and the icebreaking efficiency is improved on the premise that the safety of the blade structure is guaranteed.

Disclosed is a spherical roller bearing comprising: at least an outer ring and an inner ring; two groups of spherical rollers; and at least one cage configured to retain the spherical rollers, the cage comprising at least one axially inner cage ring, a first axially outer cage ring and a second axially outer cage ring extending in a circumferential direction of the spherical roller bearing, the first axial outer retainer ring and the second axial outer retainer ring are respectively separated from the axial inner retainer ring and are connected to the axial inner retainer ring through a plurality of retainer rods to form a closed cavity; each pocket is configured to receive one spherical roller and has an axially inner pocket side face and an axially outer pocket side face configured to restrain the spherical roller in the axial direction, each cage bar has a curved portion extending in the axial direction in the circumferential direction, the curved portion is at least partially concave, and in the axial direction, the curved portion is at least partially concave. The distance between the vertex of the bending part and the side face of the axial inner cavity lattice is different from the distance between the vertex of the bending part and the side face of the axial outer cavity lattice.

The invention relates to the technical field of wind turbines, and particularly provides a sliding bearing system and a maintenance method thereof.The sliding bearing system comprises a pair of radial sliding bearings located at the hub end and the gearbox end of a main shaft respectively, and the main shaft is rotatably connected to a cabin through the pair of radial sliding bearings; the axial sliding bearing is located on the opposite outer side of the gear box end of the main shaft, and the axial sliding bearing is connected with the cabin and the main shaft; the axial sliding bearing includes an annular plate detachably connected to the gearbox end of the main shaft and a number of caliper slider modules arranged spaced apart from each other along a circumferential direction of the annular plate and detachably connected to the nacelle and each releasably clamping the annular plate. Through the configuration, the caliper type sliding block module can loosen and clamp the annular plate, so that the caliper type sliding block module can be loosened and further pulled out from the annular plate, and the axial sliding bearing with the replaceable sliding blocks on the two sides is realized.

A vibration absorber arrangement (1) is provided, in particular for tall slender structures, comprising a supporting structure (8), an absorber mass (2) which comprises a center of mass (3), and at least one wheel (4, 5) by means of which the absorber mass (2) is movable on a concavely curved rail arrangement (6), which is connected to the supporting structure (8), from a stable central position in two opposite directions, wherein a friction damper device (9) is provided. One wants to be able to adapt such a vibration absorber arrangement in a simple manner to different operating requirements. For this, it is provided that the friction damper device (9) is adjustable between a first state, in which it does not interact with the absorber mass (2) or only dampeningly, and a second state, in which it controlledly brings a movement of the absorber mass (2) to a standstill.

The utility model provides an I-shaped thrust cylindrical roller bearing isolation block. The I-shaped thrust cylindrical roller bearing isolation block comprises a support column, a first cross beam and a second cross beam, arc-shaped grooves matched with the cylindrical rollers are formed in the large side faces of the supporting columns; one end of the strut is vertically connected with the first cross beam, two ends of the first cross beam protrude out of the strut and are planes, and the surface, connected with the strut, of the first cross beam is a plane; the other end of the strut is vertically connected with a second cross beam, two ends of the second cross beam protrude out of the strut and are planes, and the surface, connected with the strut, of the second cross beam is a plane; the supporting columns, the first cross beam and the second cross beam form an I-shaped structure; the material utilization rate can be improved, the machining difficulty is reduced, the machining efficiency is improved, the batch production cost is reduced, rolling body abrasion can be reduced, the bearing failure risk is reduced, and the service life of the bearing is prolonged.

An anti-abrasion and limiting structure for a twisted cable of an offshore wind turbine generator aims to solve the problem that a power cable is prone to abrasion in the yaw or vibration process of the offshore wind turbine generator, and effective protection and limiting of the power cable are achieved by designing a comprehensive protection structure comprising a cable fixing assembly, a limiting assembly and a protection layer. The cable fixing assembly is made of a high-strength and corrosion-resistant material and can be customized according to the outer diameter of the power cable, so that the cable can be stably fixed; the limiting assembly is arranged between the adjacent fixing clamps, and the relative displacement of the cable is effectively limited through the limiting effect of the limiting block and the limiting spring; the protective layer is made of a wear-resistant and corrosion-resistant high-performance material and covers the surface of the cable to form a protective layer so as to isolate direct contact between the cable and the external environment; the power cable is simple in structure and convenient to install, the wear rate of the power cable can be obviously reduced, the service life of the cable is prolonged, and the operation stability and reliability of an offshore wind turbine generator are improved.

The utility model belongs to the technical field of wind power generation equipment, and relates to a main shaft device of a wind generating set, which comprises a front main shaft body, a middle main shaft body, a rear main shaft body, a front bearing outer ring, a rear bearing outer ring, a bearing seat, a front roller and a rear roller, the rear bearing outer ring is mounted at the other end of the bearing seat; the front roller is arranged in an annular space formed between the front bearing outer ring and the front main shaft body, and the rear roller is arranged in an annular space formed between the rear bearing outer ring and the rear main shaft body; the two ends of the middle spindle body are connected with the front spindle body and the rear spindle body respectively. The outer surfaces of the front main shaft body and the rear main shaft body are directly used as bearing raceways, and the bearing raceways, the corresponding front bearing outer ring, the corresponding rear bearing outer ring, the corresponding front roller and the corresponding rear roller form an inner-ring-free bearing system, so that the ring running phenomenon is avoided, and the stability of the main shaft in the running process is enhanced; and by splitting the main shaft, the overall size of the main shaft is reduced, and the manufacturing cost is reduced.

The invention relates to the technical field of exhaust and noise elimination, and discloses a wind power cabin exhaust silencer which comprises an exhaust pipe and a noise elimination pipe which are communicated with each other, an exhaust fan for driving gas to move towards the noise elimination pipe is arranged in the exhaust pipe, and multiple sets of sound absorption assemblies rotating synchronously are arranged in the noise elimination pipe. A gap for air to flow is formed between every two adjacent sound absorption assemblies, and an acute included angle is formed between the plane of each sound absorption assembly and the airflow direction; the sound absorption assembly comprises a first rotating frame and a second rotating frame which are sequentially arranged in the airflow direction and hinged to each other, and sound absorption plates are arranged on the side faces, making contact with airflow, of the first rotating frame and the second rotating frame. According to the silencer, by arranging the included angle adjusting assembly, the included angle between the first rotating frame and the second rotating frame in the silencing pipe is dynamically adjusted, linkage control is conducted on the included angle and the rotating speed of the exhaust fan, and the silencing performance of the silencer can be adaptively optimized according to the actual thermal load of a wind power cabin.

The embodiment of the invention provides a fan blade electric heating deicing control method, device and system. The method comprises the steps that when the blade is coated with ice, electric heating films in all heating areas are started for heating, the electric heating films are laid on the surface of the blade and comprise the multiple independent heating areas, and each heating area comprises high-power heating films located on the periphery and a low-power heating film located in the center; the high-power heating film and the low-power heating film of each heating area can be independently controlled; the ice layer falling state of each heating area is judged through monitoring equipment every preset time, at least one piece of monitoring equipment is arranged at the position, close to a blade, of a fan tower barrel, and the monitoring equipment has the laser fog penetrating and lens heating functions and is used for monitoring the blade icing state; and the heating power of the corresponding heating film is adjusted according to the ice layer falling state of each heating area.

The invention discloses a new energy fan tower drum cleaning device which comprises a supporting plate, mounting seats are symmetrically and fixedly connected to the top of the supporting plate, a rotating shaft is rotationally connected between the two mounting seats, supporting rods are fixedly connected to the two ends of the rotating shaft, and a brushing roller used for cleaning a fan tower drum is arranged between the two supporting rods. Moving wheels are installed at the four corners of one side of the supporting plate correspondingly, a first adsorption mechanism used for being tightly adsorbed to the surface of a fan tower cylinder is arranged at the position, located at the bottom end of one side of the moving wheels, of the supporting plate, a mounting groove is formed in the position, located above the first adsorption mechanism, of the surface of the supporting plate, and a moving seat is arranged in the mounting groove in a liftable mode. The fan tower drum cleaning device has the beneficial effects that the device can automatically climb and rise, in the climbing process of the device, in cooperation with rotation of a brushing roller, deep cleaning of the fan tower drum can be achieved, and the cleaning efficiency of the fan tower drum is improved.

The spindle sliding bearing comprises a radial pad, a thrust pad and a bearing main body, the middle of the bearing main body is columnar, and the two sides of the bearing main body are conical tables; the radial pads are uniformly arranged in the middle of the through hole in the bearing main body in the circumferential direction, and the thrust pads are uniformly arranged on the conical tables at the two ends of the bearing main body in the circumferential direction. Compared with the prior art, the segmented sliding bearing is adopted, the conical surface radial pads and the inclined plane thrust pads are distributed in an array mode in the axial direction to form a multi-pad structure, and the pad replacement efficiency can be improved. The thrust pad installed in an inclined mode can bear radial loads and axial loads at the same time, and the overall bearing capacity of the bearing is enhanced while axial impact is borne.

The utility model discloses a novel bearing for a fan blade main shaft of a wind power generator, which relates to the technical field of generator bearing equipment, and comprises a bearing seat, a bearing seat base, a bearing cover, a sectional bearing bush, an upper bushing and a lower bushing, the top end of the bearing seat is provided with a circular-truncated-cone-shaped mounting groove, and the bottom end of the bearing cover is a circular-truncated-cone-shaped surface matched with the circular-truncated-cone-shaped mounting groove. A first gap is reserved between the outer wall of the upper bushing and the top wall of the circular-truncated-cone-shaped mounting groove and a first gap is reserved between the outer wall of the lower bushing and the bottom wall of the bearing cover, and a plurality of sectional bearing bushes are movably arranged in the first gaps at equal angles. Compared with the prior art, the service life of the bearing is prolonged, stable and long-acting operation of the wind driven generator is effectively guaranteed, smaller bearing bush segments are adopted, the difficulty in manufacturing, mounting and transporting the bearing bush is reduced, and only a small number of bearing bush segments which break down need to be replaced during maintenance.

The invention provides a method for repairing a wind power blade, which comprises the following steps: carrying out polishing treatment on a region, with a damaged site, of a wind power blade to be repaired to form one or more regions to be filled, and covering the damaged site corresponding to each region to be filled; filling bodies are placed in the to-be-filled areas for filling treatment, and each filling body is of a grid structure; and under the negative pressure condition, an adhesive is injected into the to-be-filled area where the filling body is placed, curing and polishing treatment are conducted, and therefore the to-be-repaired wind power blade is repaired. According to the repairing method, the repairing mode that the filling body with the grating structure is combined with the adhesive is adopted, the advantages of the grating structure in the aspects of mechanical property improvement, light weight, energy absorption and the like are fully played, meanwhile, the bonding and curing effects of the adhesive are utilized, repairing of the damaged site of the wind power blade is achieved, and the repairing efficiency is improved. And the mechanical property and reliability of the repaired wind power blade are remarkably improved, the repairing cost is reduced, and good application prospects and economic benefits are achieved.

The invention provides a multi-component resource recovery method and device for retired wind power equipment. The method comprises the steps that the component remaining life of each component in the wind power equipment is obtained according to the design life, the real-time damage amount and the failure damage amount of each component in the wind power equipment; the unit residual life of the wind power equipment is obtained according to the assembly residual life of each component in the wind power equipment, and when the unit residual life of the wind power equipment is lower than a preset value, the wind power equipment is decommissioned; all parts of the retired wind power equipment are treated and dismantled; quality detection is conducted on the disassembled part, when the quality of the part does not reach the standard, cutting route planning and cutting parameter determination are conducted on the part, and cutting decomposition is conducted on the part according to the planned cutting route and the determined cutting parameters; and the decomposed materials are sorted and recycled. According to the multi-component resource recycling method and device for the retired wind power equipment, high-quality recycling of multi-component resources in the retired wind power equipment is achieved.

The application belongs to the technical field of wind power generation equipment maintenance, and particularly relates to a kind of unmanned aerial vehicle cooperative inspection laser deicing system and method, unmanned aerial vehicle cluster, the unmanned aerial vehicle cluster includes master unmanned aerial vehicle and slave unmanned aerial vehicle, the master unmanned aerial vehicle is equipped with binocular camera for taking pictures and laser radar for ranging, for constructing blade three-dimensional icing map, the slave unmanned aerial vehicle is equipped with pulse laser generator for heating ice layer and thermal infrared camera, the resolution of the thermal infrared camera is 640x512 pixels, and the temperature measurement accuracy is ±0.5 DEG C, and the thermal infrared camera is used for real-time acquisition of blade surface temperature field;The communication delay of the 5GMesh network is less than 100ms, supports dynamic node access and real-time data synchronization;The application is equipped with binocular camera and laser radar, which realizes three-dimensional accurate modeling of the icing area, has small positioning error, improves the detection efficiency compared with manual detection, and avoids the risk of high-altitude operation for workers.

The utility model provides an integrated valve group, a radiator assembly, a lubricating and cooling system and a wind generating set, the integrated valve group is used for the radiator assembly, the radiator assembly further comprises a radiating core body and a bypass channel, the bypass channel is connected with a radiating channel in the radiating core body in parallel, and the integrated valve group is arranged at an inlet of the bypass channel; the integrated valve group comprises a temperature control valve group and a pressure valve group which are integrated into a whole, and an inner cavity of the temperature control valve group is communicated with an inner cavity of the pressure valve group. By integrating the temperature control valve group and the pressure valve group, the integrated valve group can be opened under the condition that at least one of the opening temperature condition of the temperature control valve group and the opening pressure condition of the pressure valve group is met, so that the overall opening condition of a single valve body is widened, the problem of oil trapping of a radiator assembly can be solved, and the damage risk is reduced.

A dual-liquid vibration damping sloshing chamber for wind turbine towers, oriented towards source-grid-load-storage synergy, belongs to the technical field of wind turbine vibration damping equipment. It is a sloshing damping structure externally mounted on the wind turbine body, including a wind vane, a sloshing chamber structure consisting of an annular sloshing chamber, liquid baffles, upper liquid, and lower liquid, and a turntable fixing structure consisting of a rotor and rotor flange. The annular sloshing chamber has a central through hole, is fitted onto the tower, contains liquid baffles, and is filled with two immiscible liquids with different densities. The wind vane is arranged outside the annular sloshing chamber. The sloshing damping structure is fixed to a fixed section of the wind turbine tower via the rotor flange. This invention improves the vibration damping effect of the sloshing damping structure by replacing a single sloshing liquid with a stable, layered, immiscible dual liquid, accurately adapting to all operating conditions. Through the linkage of the wind vane and liquid baffles, the vibration damping efficiency of the sloshing damping structure is improved, the generation of resonance effects is suppressed, and the stability of the vibration damping effect of the sloshing damping structure is enhanced.

The invention relates to the technical field of wind power generation, in particular to a blade deicing device and method and a wind generating set, and the blade deicing device comprises heating modules which are arranged on the front edge, the rear edge, the pressure surface and the suction surface of a blade and used for heating an ice layer on the surface of the blade; the monitoring module is mounted on the surface of the blade and is configured to monitor the ice layer thickness, the environment temperature and the humidity of the surface of the blade; the control module is electrically connected with the heating module and the monitoring module, and the control module is configured to start the heating module to deice if the thickness of the ice layer is larger than or equal to a first threshold value and the environment temperature and humidity meet the icing condition. The icing state of the blade can be intelligently monitored, efficient deicing is achieved, and energy conservation and environmental protection are achieved.

The invention belongs to the technical field of wind power generation equipment maintenance, and particularly relates to an unmanned aerial vehicle cooperative inspection laser deicing system and method and an unmanned aerial vehicle cluster, the unmanned aerial vehicle cluster comprises a master control unmanned aerial vehicle and slave unmanned aerial vehicles, the master control unmanned aerial vehicle carries a binocular camera used for photographing and a laser radar used for distance measurement, and the slave unmanned aerial vehicle carries a laser radar used for distance measurement. The slave unmanned aerial vehicle is used for constructing a blade three-dimensional icing map, the slave unmanned aerial vehicle is provided with a pulse laser generator for heating an ice layer and a thermal infrared camera, the resolution ratio of the thermal infrared camera is 640 * 512 pixels, the temperature measurement precision is + / -0.5 DEG C, and the thermal infrared camera is used for collecting a blade surface temperature field in real time; the communication delay of the 5GMesh network is less than 100ms, and dynamic node access and real-time data synchronization are supported; the unmanned aerial vehicle carries the binocular camera and the laser radar to achieve three-dimensional precise modeling of the icing area, the positioning error is small, the detection efficiency is improved compared with manual detection, and the high-altitude operation risk brought to workers is also avoided.