30 results about "Hydro power" patented technology

The application discloses an aluminum-UHPC combined bridge pier anti-collision device with a hydraulic power generation function, which comprises a plurality of energy absorption units, a plurality of power generation units, a sliding unit and a fixing assembly; the energy absorption unit comprises a first shell, a first strong magnet group, a second buffer layer, a corrugated plate, a first buffer layer and ultra-high performance concrete are arranged in the inner cavity of the first shell; the power generation unit is located on the inner side of the energy absorption unit; the power generation unit comprises a second shell and a second strong magnet group, the second strong magnet group is installed in the second shell, and an electric wire is wound on the second strong magnet group; the sliding unit comprises a plurality of annular guide rails, a plurality of horizontal rollers and a plurality of vertical rollers; the plurality of horizontal rollers are slidably connected along the plurality of annular guide rails; the fixing assembly comprises a plurality of flow resistance plates and a plurality of fastening parts. The application can effectively reduce the water pressure borne by the bridge pier, significantly reduce the risk of the bridge pier being seriously damaged by the ship collision, and has the advantages of multiple functions, outstanding energy consumption effect, strong adaptability, long service life and the like.

The application discloses a portable hoisting and positioning equipment for maintenance of a hydropower plant, which comprises a main frame and auxiliary frames symmetrically arranged on both sides of the main frame, parallel distance adjusting mechanisms are connected to each auxiliary frame, the main frame is connected with a driving member, the auxiliary frame is further connected with a supporting member, the supporting member comprises a wheel frame plate connected with the outer side surface of the auxiliary frame, a fixed wheel frame is mounted on the lower surface of the wheel frame plate, a load bearing wheel is arranged in the fixed wheel frame, a lifting member is mounted on the wheel frame plate, the axis of the lifting member is perpendicular to the axis of the load bearing wheel, a controller is further mounted on the main frame, and the controller is wirelessly connected with the horizontal distance adjusting mechanism, the driving member, the lifting member and an external communication device. The application solves the problem of time consumption in conversion of traditional cranes and forklifts, the driving member serves to drive displacement of the main frame, the supporting member ensures the stability of the auxiliary frame, and the hoisting and positioning convenience of the disc cabinet is improved.

A control device includes a prediction unit that predicts state data indicating a state of a run-of-river hydroelectric power generation system, based on operational data acquired from the run-of-river hydroelectric power generation system, an optimization unit that optimizes operation data indicating an operation with respect to the run-of-river hydroelectric power generation system, based on a prediction result of the state data, and a control execution unit that controls the run-of-river hydroelectric power generation system, based on the optimized operation data.

A harbour system (1) comprises a first harbour section (100) and a second harbour section (200), wherein the first harbour section (100) has at least one berth (4) for boats, at least one lock (5) having at least one lock chamber (5a, 5b) each having two lock gates, and a hydropower plant (2), wherein the hydropower plant (1) has at least one wave power plant (2a) having a pump module (16), which is driven by wave movements of a sea section (M), and a pumped storage means (6). The second harbour section (200) of the harbour system (1) has at least one container harbour basin (7) having at least one lock (8) with two lock chambers (8a, 8b), at least one container terminal (10) having at least one container crane unit (20) and at least one further pumped storage means (6a).

The utility model provides a kind of high-performance composite water delivery pipeline, the structure includes from inside to outside: inner fiber reinforced composite material (FRP) pipe, inner concrete layer, inner steel pipe, shear nail, inner ultra high performance concrete (UHPC) layer, prestressed reinforcement, outer UHPC layer and outer FRP pipe.The utility model has the advantages of high pressure-bearing capacity, excellent durability, long service life, low maintenance cost and strong extreme load resistance by the above multilayer composite structure design, especially suitable for urban pipe network, long-distance water delivery, water power generation water diversion system, submarine water delivery, corrosive medium transportation and other fields with strict performance requirements for pipeline.

The present invention relates to a modular device for grouping individual 5- to 9-sided polygonal modules (100) for harnessing wind or hydrokinetic power, comprising a wind or hydrokinetic unit (10) with a vertical axis and a cage (20) in the form of a right prism with a 5- to 9-sided polygonal base, wherein the two bases (21a, 21b) are connected to one another at their respective vertices (23a, 23b) by uprights (24) arranged in such a way that each face (22) forms a panel perforated at its center for passage of air through the face (22); and wherein the unit (10) comprises a stage (11) formed by lower (12a) and upper (12b) plates that can be superposed in pairs, the plates (12a, 12b) of circular shape being parallel to one another and rigidly connected by blades (13), the unit (10) being rotatably mounted inside the cage (20) such that the fluid exerts on each of the blades (13) a force causing the unit (10) to rotate on itself.

The invention relates to a pumped-storage power plant for storing and feeding electrical energy back into the grid and for adjusting the grid load in a power grid (9) connected to the pumped-storage power plant, wherein the pumped-storage power plant comprises a plurality of lifting modules (4), and wherein each of the lifting modules (4) includes a double winch arranged at ground level, a lifting weight (4.2) suspended therefrom by two winch cables (4.3), cable guides for guiding the winch cables (4.3) and the lifting weight (4.2), and an electronic unit for control and power conversion. The individual lifting modules (4) are controlled as required via a central control unit (5). Due to its modular design, the pumped-storage power plant enables highly efficient, flexible energy buffering and is particularly suitable for integration into decentralized energy supply systems.

A horizontal, vertically movable, watertight paradoxical membrane is vertically raised and lowered in the lower part of a combined container. The combined container has a characteristic shape and consists of a lower and an upper section. The lower section of the container has a much larger diameter or cross-section and a much lower height than the upper section. The upper section of the combined container is a long, vertical pipe with a small diameter. The lower and upper sections of the combined container are connected to each other. A control valve is located on the long vertical pipe near the connection point with the lower section of the combined container. When the control valve opens, a continuous column of combined water is formed in the combined container. The raising of the paradoxical membrane forces water above the membrane out of the lower section of the combined container. Water enters the long vertical pipe from the lower section. Water flows out of the combined container at the top of the long vertical pipe. The water raised to a higher level is primarily used for power generation in hydroelectric power plants. Secondly, the water raised to a higher level can be used for another useful purpose. The paradoxical membrane is an integral part of every closed-loop hydroelectric power plant, rising and lowering within the lower section of the combined container. Circulating closed-loop hydroelectric power plants can be classified according to their structural design. Another important classification method is based on the method of raising the paradox membrane. A circulating closed-loop hydroelectric power plant is a closed system in which a finite amount of water circulates in a process that is repeated cyclically.

The application belongs to the technical field of power supply, and discloses a water storage system, which comprises a hydraulic power generation water tank, a cooling water tank, an energy storage water tank and a hydraulic power generation assembly; the cooling water tank is connected with the hydraulic power generation water tank and a passive containment cooling system, and is configured to provide cooling water for the passive containment cooling system; the energy storage water tank is connected with the hydraulic power generation water tank and the cooling water tank, and the water in the energy storage water tank, the hydraulic power generation water tank and the cooling water tank can flow into each other; the hydraulic power generation water tank and the energy storage water tank are respectively connected with the hydraulic power generation assembly, and the water in the hydraulic power generation water tank and the energy storage water tank is configured to drive the hydraulic power generation assembly to start. The water storage system can provide sufficient water source for a passive nuclear power plant after an accident, and can provide a cooling water source for a safety shell, and can improve the emergency reliability of the passive nuclear power plant.

The utility model relates to automatic pump flow regulation technical field especially a kind of water power plant automatic pump flow regulating device, including centrifugal pump and pump body power source, the left side input shaft of centrifugal pump is fixedly connected with the output shaft of pump body power source, the upper end of centrifugal pump is installed with float ball valve, the front side of centrifugal pump is installed with electronic flow regulating valve, the front side of electronic flow regulating valve is installed with connecting assembly. Through the cooperation between collar, bellows, elbow and electronic flow regulating valve, when using, the water flow discharged by electronic flow regulating valve enters round pipe, then makes water flow flow to the inside of collar through round hole, and is transported to elbow by bellows to be transported to external pipeline, effectively avoid the problem that existing automatic pump is prone to error between electronic flow regulating valve drain port and external pipeline connection position when installing, so that the position of overall water pump needs to be moved to meet connection, so that connection process is very inconvenient.

The utility model discloses a positioning fixture for water power equipment maintenance, including frame, the top swing joint of frame has the fixture subassembly, the outside fixed connection of frame has the support mechanism, the support mechanism includes the support frame, the outside fixed connection of support frame in frame, the bottom fixed connection of support frame inner chamber has the motor, the output fixed connection of motor has the screw rod, the surface screw thread connection of screw rod has the transmission sleeve, the top of transmission sleeve penetrates to the top of support frame, the top fixed connection of transmission sleeve has the support plate. The utility model discloses through setting up the support mechanism, changed the traditional water conservancy power equipment maintenance positioning fixture when carrying out clamping operation, because the device is too big clamping device can not complete clamping operation to it, can cause the phenomenon of position deviation of the device after dismounting, can assist support to it, avoid its position deviation phenomenon.

This utility model relates to the field of hydropower technology, specifically to a protective cover for a proximity switch of a turbine unit in a hydropower station. The cover includes a main body and a top cover hinged to the top of the main body. The bottom of the main body has mounting screw holes, and the front center or upper part of the main body has mounting holes for fixing the proximity switch, allowing the proximity switch to be mounted above the bottom of the main body. The side or back of the main body has cable outlet holes. This utility model adopts a full-coverage protective cover design, which effectively prevents personnel from stepping on it, avoiding damage to the proximity switch and wiring. Furthermore, the sealed design isolates dust, debris, and other impurities, ensuring detection accuracy. In humid environments, it provides moisture protection, extending equipment life and reducing maintenance costs.

This invention belongs to the field of hydropower equipment operation and maintenance technology, specifically providing a method, system, electronic device, and storage medium for intelligent monitoring of the thrust head of a hydro-generator unit, including: collecting bolt stress and temperature, humidity, and vibration signals within the thrust head cavity; preprocessing the collected signals; and calculating a leakage characteristic index based on the humidity data and vibration signals. LFI This system is used for anomaly detection in the thrust head cavity environment; a dual-flow residual network is constructed to extract the time-frequency features of vibration signals and output the leakage probability; an adaptive graph neural network is introduced to perform spatial correlation modeling of multi-sensor features; and joint training is used to enhance the model's anti-interference capability in high-noise environments; the bolt health index is calculated. BHI According to the leakage characteristic index LFI Leakage probability and bolt health index BHI Triggering tiered early warning systems. This invention solves the problem of monitoring rotating bolts, enabling early identification of oil leaks and intelligent diagnosis of bolt health status, thereby improving the operational reliability of key components in hydro-generator units.

This invention discloses a method and device for predicting guide vane efficiency optimization in hydropower generation, relating to the field of hydropower technology. The method includes: real-time collection of key parameters required for hydropower turbine operation using an industrial internet platform; preprocessing these parameters by outlier removal, filtering, and normalization to form a standardized dataset; calculating real-time efficiency based on the dataset; constructing a multi-condition efficiency characteristic database and model; and building a three-dimensional fitting surface for efficiency-head-flow rate. A machine learning algorithm is then employed, using key parameters as input and the optimal guide vane opening as output, embedding unit safety constraints, and performing cross-validation to train and optimize the prediction model. Finally, the current operating condition parameters are input, and the optimal opening recommendation value is output, maximizing turbine efficiency. This invention can adapt to changes in unit operating characteristics under different head conditions, significantly improving hydropower utilization.

An apparatus, system and method to capture water power from head or pressure is provided utilizing pipes, inlets and outlets. The apparatus comprises a central bore having an internal diameter suitable for a fluid flow, the fluid flow moves inside the central bore through the apparatus, and at least one outlet, the fluid flow exits the apparatus through the at least one outlet, optionally, a plurality of inlets for flowing additional fluid to the central bore mix the fluid flow with the additional fluid from the plurality of inlets. The apparatus can further mix the fluid though additional mixing devices and additional devices can be used to recapture energy such as, hydroelectric power from the fluid flow. The system and method can capture water energy from the fluid flow.

This invention discloses a dual-needle, low-power fluctuation regulating impingement turbine nozzle, belonging to the field of hydropower technology. In this device, a nozzle orifice is provided at the axial front end of the nozzle housing; a main nozzle is axially movable within the nozzle housing; a main nozzle drive mechanism drives the main nozzle to move slowly axially to perform slow coarse adjustment of the annular flow area within the nozzle orifice; a small nozzle is coaxially and axially movable relative to the main nozzle within the main nozzle; a small nozzle drive mechanism drives the small nozzle to move rapidly axially to perform rapid fine adjustment of the annular flow area within the nozzle orifice. This invention enables rapid and precise fine-tuning of the unit's output power, improving the unit's frequency regulation capability and its support for the power grid.

1. The name of the design product: hydropower digital display (2512). 2. The use of the design product: for water flow hydropower temperature display. 3. The design points of the design product: in the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view 1.

The present invention relates to an ultra-deep well hydroelectric power generation method using a density difference between cold water and hot water in geothermal energy, solving the problems that conventional geothermal energy utilization mostly uses a water pump to extract underground hot water for use, and a water turbine cannot be used to generate power from geothermal energy. The method comprises the following steps: S1, drilling an exploration and extraction well; S2, generating a bottom hole crack; S3, deploying a central pipe; and S4, injecting cold water between the central pipe and a casing pipe, wherein after the cold water is heated by a hot dry rock formation at the bottom of the exploration and extraction well, hot water rises from the central pipe, a specific gravity difference between the hot water and the cold water is used to form a water head difference between the inside and outside of the central pipe, and the hot water conveyed by the central pipe to the ground surface impacts a water turbine to generate power. In the present invention, a heat extraction point is the hot dry rock formation, reducing the impact on groundwater, breaking through the inertial thinking that conventional power generation by water turbines requires using the gravitational potential energy of water flow, and providing a brand-new hydroelectric power generation manner of water flowing from bottom to top.

This invention belongs to the technical field of hydropower equipment, and specifically relates to a method for adjusting the clamping stroke of a turbine guide vane servo. The invention includes the following steps: placing the guide vane servo and control ring in the fully closed position; applying stepwise pressurization to the closed chamber of the guide vane servo, recording the chamber pressure and piston rod displacement values ​​after each pressurization until the piston rod displacement change rate significantly decreases and pressurization is stopped; plotting a pressure-displacement relationship curve based on the recorded chamber pressure and piston rod displacement values, identifying the inflection point on the curve, and determining the oil pressure value corresponding to the inflection point as the optimal clamping stroke adjustment oil pressure value; adjusting the piston position of the hydraulic locking servo and / or mechanical locking servo according to the optimal clamping stroke adjustment oil pressure value, so that the guide vane servo achieves the target clamping stroke. This invention provides a scientific, accurate, and repeatable method for adjusting the clamping stroke of a turbine guide vane servo, achieving precise control of the clamping stroke.

This invention discloses a special pulley fixture for disassembling and replacing the seal of a turbine governor relay, belonging to the technical field of hydropower equipment maintenance tools. The fixture includes a track assembly, a pulley assembly, a relay, and a special lifting tool. The track assembly consists of two sets of parallel I-beam rails and channel steel connecting beams. The pulley assembly is slidably mounted on the track assembly via heavy-duty pulleys at the bottom. The relay is placed on top of the pulley assembly and fixed by the special lifting tool, which is rigidly connected to the pulley assembly. The pulley assembly is equipped with side guard plates and pads for auxiliary protection. This invention transforms traditional vertical lifting into horizontal sliding, eliminating the risk of lifting injuries at the source, simplifying maintenance procedures, improving work efficiency, and simultaneously providing comprehensive protection for the relay. It is easy to assemble and disassemble and is compatible with different models of relays, meeting the needs of safe, efficient, and low-damage maintenance in the turbine pit.

A wheel housing shell for a vehicle having an underbody that faces a roadway, on which the motor vehicle travels during operation. During operation of the vehicle on a wet roadway, in particular when driving through shallow water, for example when aquaplaning, splash water is displaced from the wheels of the motor vehicle, which forms fountains that in turn generate at least one splash water force. To improve the wheel housing shell for the motor vehicle with respect to driving through shallow water, for example when aquaplaning, the wheel housing shell has a splash water drainage geometry in a rear region in relation to a forward driving direction, which is configured and arranged, such that the splash water in the rear region of the hydropower-optimized wheel housing shell is tangentially discharged downwards in the direction of the roadway by the splash water drainage geometry during operation of the motor vehicle.

A boomerang hydro multiplier machine designed to enhance hydro power by providing a greater area for collection and containment of fluid thereby providing more power including a wheel device and a guide channel with an endless carrier unit secured extending around the wheel device and through the guide channel, and a series of containers provided on the endless carrier unit used in transferring a continuous fluid supply through the guide channel in order to rotate the wheel device to generate rotational energy. A fluid flow is directed at the containers entering the guide channel from near the top of the wheel device and is discharged near or under the bottom of the wheel device after being directed through the guide channel. An increased electrical energy may be generated without increasing the associated water flow.

This invention relates to the field of hydropower technology, specifically to a method for diagnosing acoustic faults in hydro turbines based on CRK-enhanced CNN-GRU and dual-channel self-attention. The method includes: S1 deploying noise sensors near the turbine runner to collect acoustic signals that avoid high-frequency interference; S2 segmenting the signal into 1024 data points per segment, analyzing the signal using Fast Fourier Transform (FFT) to extract time-frequency features such as peak amplitude and energy proportion in the 400-600Hz frequency band; S3 constructing CRK based on a Tent chaotic mapping-improved Runge-Kutta optimization algorithm to enhance global search capability and convergence speed; S4 constructing a CNN-GRU-dual-channel self-attention model to sequentially achieve local time-frequency feature extraction, temporal dynamic dependency modeling, and multi-dimensional feature enhancement; S5 optimizing model hyperparameters using CRK; and S6 training the model by dividing it into training and test sets, employing transfer learning when samples are scarce. This invention exhibits strong anti-interference capabilities, efficient hyperparameter optimization, and can accurately diagnose normal, early, and extended crack states of the turbine runner. It is suitable for scenarios with scarce samples and has high engineering practicality.

This utility model relates to the field of hydropower technology, specifically to a front-end filtration system and oil mist suction device for a water-guided bearing oil mist suction device. It includes a guide pipe, a front-end connecting flange at the first end of the guide pipe, and a rear-end connecting flange at the second end of the guide pipe. The front-end connecting flange is adapted to the oil mist overflow hole of the oil tank cover, and the rear-end connecting flange is adapted to the air inlet of the oil mist suction device. Several baffles are staggered along the axial direction inside the guide pipe. The first end of each baffle is connected to the inner wall of the guide pipe, and the second end of each baffle is inclined and extends towards the central axis of the guide pipe, forming an oil mist flow channel between the second ends of each baffle. This utility model utilizes a barrier baffle design, allowing oil mist to enter the oil mist suction device through the oil mist flow channel formed between the second ends of the baffles, while oil and impurities return to the oil tank due to the barrier effect of the baffles. This effectively reduces sludge accumulation and eliminates the need for regular cleaning of the filtration system.

This invention relates to a concentrated solar energy storage system and method, which uses solar thermal energy to convert water into water vapor, and then the water vapor drives a hydroelectric power generation system with a water storage device (or capsule) through repeated conversion processes.

The application provides a runner local additive topology optimization design method based on dynamic stress space-time distribution atlas, and relates to the technical field of hydropower equipment design. First, a complete operation cycle time-varying dynamic stress data set of the runner is obtained through bidirectional transient fluid-structure coupling simulation, and a four-dimensional dynamic stress space-time distribution atlas is constructed. Then, atlas data is operated to generate a spatial non-uniform fatigue damage sensitivity field. Then, taking the maximization of overall fatigue life and the minimization of total additive material as multiple targets, topology optimization iteration is carried out based on the fatigue damage sensitivity field to obtain a non-uniform material density distribution intermediate result. Then, the spatial three-dimensional reticular reinforcing rib geometric configuration is reconstructed according to the result and converted into numerical control machining path instructions. Finally, the numerical control machining path instructions are sent to an additive manufacturing equipment to complete the deposition and manufacturing of the reinforcing rib, and the manufactured runner is simulated and verified. The fatigue life and operation stability of the runner structure can be significantly improved.