44 results about "Hydroelectric generation" patented technology

The present invention relates to an eco-friendly small hydro power generation device, comprising: a main clutch unit configured such that first and second seesaw arms, installed on both sides of a first rotating shaft extending from a water turbine, are separated from the first rotating shaft when rotated upward and are coupled to the first rotating shaft when descended; a motor for rotationally driving a second rotating shaft; upper and lower pulleys installed so as to be able to rotate in conjunction with the movement of first and second wires having one end coupled to the first and second seesaw arms, respectively; a swing motion support unit for applying the rotational force of the second rotating shaft using the other ends of the first and second wires by, while the first seesaw arm performs a first swing motion, performing a second swing motion in a pattern in which the second seesaw arm descends when the first seesaw arm ascends; and a generator for generating electric power by receiving the rotational force of the water turbine.

The application discloses a method for determining the elevation of a giant mixed-flow type hydro-generator set during overall replacement of a stator, and belongs to the technical field of installation of hydroelectric generation equipment. The method is characterized by the following steps: arranging laser displacement and inclination sensors on the stator lifting lugs and in the circumferential direction, collecting multi-source heterogeneous data and aligning the data based on millisecond-level timestamps; uniformly mapping the data to a global coordinate system with the center line of the fixed guide vane of the ring as a reference to construct a unified spatial posture framework; dynamically inhibiting displacement fluctuations caused by interference such as elongation of the steel wire rope and deformation of the crossbeam by using Kalman filtering; fusing the filtered displacement and inclination data to determine the tilting state of the stator as a whole by weighted average; further combining particle filtering to estimate the influence of the deformation of the crossbeam on the trajectory of the center of mass, and fitting the trajectory of the center of mass by using the least square method to calculate the elevation value in real time; when the elevation deviation is out of limit, the fusion parameters are optimized through a feedback loop to realize closed-loop regulation and control of the elevation and the posture. The application significantly improves the precision and stability of the determination of the elevation of the center of mass during the hoisting of a kiloton-class stator, and guarantees the safety and efficiency of the overall replacement operation.

The present application relates to the field of hydropower facilities, in particular to a cooling tower circulating water recycling, energy saving and consumption reducing and environment-friendly cooling tower hydropower device. At present, the cooling tower is like a natural reservoir, and the circulating water of the cooling tower is wasted day after day in circulation. It is not acceptable, energy is wasted, and energy consumption is high, which increases the operating cost of enterprises. The technical scheme of the present application is to transform the existing cooling tower structure, install guide plates at the appropriate position of the water and air exchange layer like the rainstorm layer under extreme weather, so that the water droplets are concentrated and gathered to form water flow. The water flow impacts the water turbine to rotate, and the water turbine drives the generator to generate electricity. Secondly, install guide plates in the water collecting pool to make the water flow concentrate and gather to form water flow like a flood in a rainy day. The water flow moves violently in the water collecting pool to increase the contact time with air to cool down, and can also impact the water turbine to rotate, and the water turbine drives the generator to generate electricity.

A novel closed-loop hydroelectric power generation device includes a frame, characterized by: an upper main shaft and a lower main shaft mounted on the frame; upper and lower sprockets correspondingly mounted on the upper and lower main shafts; roller chains wound around the upper and lower sprockets; connecting plates mounted on the roller chains; water storage hoppers mounted on the connecting plates; and flow guiding devices mounted on the water storage hoppers. A water source for filling the water storage hoppers is installed above the frame; a drive gear for power output is mounted at one or both ends of the lower main shaft, meshing with a pinion of an auxiliary power starting and parking device; the drive gear meshes with the input pinion of a gearbox, and the output shaft of the gearbox is connected to the input shaft of a generator; a water storage tank is installed at the lower part of the frame, serving as a circulating water source or directly connected to a drainage pipe. This invention has advantages such as low water consumption, high efficiency, no terrain limitations, and high output power, and is suitable for distributed new energy power generation.

To provide a hydroelectric power generation mechanism that can utilize energy with high efficiency. [Solution] The hydroelectric power generation mechanism comprises a first-shaft turbine having a first rotor with first rotor blades on its outer surface and a hollow first rotor connected thereto, a second-shaft turbine having a second rotor with second rotor blades on its outer surface and a second rotor connected thereto and arranged coaxially with the first-shaft turbine, and a generator. In this hydroelectric power generation mechanism, the first rotor blades are positioned upstream of the second rotor blades in an annular flow path, the generator is positioned upstream of the first-shaft turbine, a planetary gear mechanism is positioned between the generator and the first-shaft turbine, the gear at the end of the first rotor meshes with an internal gear, the second rotor is connected to a planetary carrier, and the input shaft of the generator is connected to a sun gear. During operation, the first and second rotors rotate in the same direction, and the second rotor rotates at a lower rotational speed than the first rotor.

This invention discloses an adaptive load-based method and system for temperature regulation of a hydro-generator, relating to the field of hydropower control technology. It involves real-time acquisition of multi-source operating data, time alignment, and feature fusion. The fusion result is input into a physically constrained thermal state prediction model to obtain the generator's predicted thermal state and instantaneous heat generation information, generating an advanced cooling regulation amount based on the heat generation mechanism. The system employs a control architecture that parallels baseline safety versions and candidate strategy versions. Candidate strategies are updated online in the background, and control commands to be verified are output. Before issuance, all control commands undergo an online safety verification mechanism to assess command consistency and condensation risk. If the verification fails, the system automatically blocks and triggers strategy rollback or switches to a degraded control mode. This invention overcomes the temperature regulation lag problem caused by thermal inertia, balancing regulation advancement, model physical consistency, and operational safety under complex operating conditions, and is suitable for the safe operation of large hydro-generator units.

The application discloses a kind of river with axial flow constant speed power output device and hydroelectric generator unit, belong to the technical field of hydroelectricity generation.A kind of river with axial flow constant speed power output device, including mutually connected constant speed adjusting assembly and axial flow drive assembly.Axial flow drive assembly first output shaft is connected with constant speed adjusting assembly.Constant speed adjusting assembly includes the second output shaft end portion is worn to the speed regulating box body outside and is connected with third connecting flange.A kind of hydroelectric generator unit, including generator, and the power input end of generator is connected with third connecting flange.The application can adapt to river flow variation and realize constant speed power output, and at the same time solve the problem of impurity blockage and mechanical loss, finally guarantee the stable and efficient operation of generator unit.

The application relates to the technical field of hydroelectric power generation, in particular to an impulse water turbine, a water bucket and a pin column distribution parameter determination method. The water bucket is a double-bowl structure symmetrical along a water distribution blade, the water bucket has a water-facing surface for bearing water flow impact and a backwater surface opposite to the water-facing surface, a plurality of pin columns are embedded along the normal direction of the backwater surface, the end of the pin column is matched with the surface of the water-facing surface to form a continuous smooth curved surface of the water-facing surface. In the condition of high water head and much silt, the damage of water bucket deformation cracking and even broken bucket is avoided, and the service life of the water bucket is prolonged.

The application discloses a kind of reservoir water resource optimal allocation method based on multi-stage multi-objective belonging to water resource management technical field, comprising the following steps: A, predict the water resource demand, water resource available quantity, social economy and other basic data in basin;B, with the maximum unit water resource utilization benefit as target, with reservoir water balance, irrigation and power generation water demand, salinity leaching and so on as constraint condition, construct water resource optimal allocation model;C, coupling fixed combination stochastic programming and fractional programming method is solved to model, according to the water resource shortage obtained under different probability level arrangement production to reach maximum unit allocation water benefit.The application fully considers the necessity of joint management of upstream hydropower generation and downstream agricultural irrigation in reservoir management system, reasonably allocates water resources, land resources and energy in the basin, obtains the maximum unit allocation water benefit, so as to relieve water contradiction and improve the utilization efficiency of resources.

This invention provides a well-type hydroelectric power generation device, comprising a vertically arranged well, with a water turbine fixedly mounted at the lower end of the well via multiple brackets. A generator set is mounted above the water turbine and connected thereto. The water turbine has a flow channel with a vertically upward opening. A flow regulating component, extending vertically and having a downwardly convex arc at its lower end, is vertically mounted and movable within the well. An inlet pipe is fixedly connected to the upper end of the well, and a tailrace pipe is fixedly connected to the lower end. The inlet pipe is located above the flow channel opening, and the tailrace pipe is located below the flow channel opening. This invention solves the problem in existing technologies where all drainage water enters the water turbine, resulting in an inability to adjust the power generation.

This utility model discloses a cleanable hydroelectric power generation control box. The technical field it belongs to is faucet control boxes. The technical problem it aims to solve is that existing faucets with hydroelectric power generation functions suffer from issues such as water impurities clogging the generator, scale buildup affecting power generation efficiency, and increased maintenance costs. The key technical points are that the control box includes a body with an inlet and an outlet, a solenoid valve and a miniature hydroelectric generator inside the box, and a chamber connecting the outlet of the solenoid valve and the inlet of the miniature hydroelectric generator. A filter device is detachably installed in the chamber through a mounting hole, located in the water flow path between the two. Its main purpose is to be installed in faucets and other equipment to generate electricity using water flow, while simultaneously filtering impurities through the filter device for easy cleaning and maintenance, ensuring power generation efficiency.

This utility model discloses a temperature measurement and monitoring device for the lower guide bearing of a hydro-generator, relating to the field of condition monitoring and fault diagnosis technology for large-scale hydropower equipment. It includes a bearing base, multiple bearing supports, a tray, a lower guide bearing, a distributed temperature sensing layer, and intelligent acquisition units. It also includes an external monitoring host and a reliable data transmission network module. The reliable data transmission network module is a highly interference-resistant communication link connecting each intelligent acquisition unit to the monitoring host. This design can significantly improve monitoring accuracy and coverage. By densely deploying monitoring points to capture localized overheating, it completely solves the problem of missed detections caused by sparse temperature measurement, truly reflecting the overall temperature field of the bearing and bearing. Furthermore, it reduces the number of fragile long analog signal lines, and the sensors and communication links designed to withstand harsh environments greatly reduce the risk of false alarms and missed detections caused by sensor failure and signal interference.

This invention discloses a steel-structured sheet pile silt-promoting dam capable of outputting clean energy, belonging to the field of water conservancy and hydropower engineering technology. It includes a dam body and a power generation component. The dam body comprises a sheet pile enclosure and a precast cage, with the precast cage positioned on the side of the sheet pile enclosure opposite the water body. The middle and both sides of the sheet pile enclosure are filled with soil and rock. The power generation component includes a floating body disposed within the precast cage, a water discharge culvert buried at the bottom of the dam body, a telescopic pipe, and a power generation unit for hydroelectric power generation. The floating body, telescopic pipe, water discharge culvert, and power generation unit are sequentially connected end-to-end. The floating body has an opening communicating with the telescopic pipe. The floating body is equipped with dredging components around its perimeter that abut against the precast cage. The floating body can move up, down, and rotate relative to the precast cage under the action of water flow, automatically clearing blockages in the precast cage. This invention can effectively reduce the sediment content of the water entering the generator set, extending the lifespan of the generator set.

The utility model discloses a kind of water turbine nozzle rectifiers, it is related to the technical field of hydroelectric generation, including blade assembly, it is used to rectify water, it includes mounting plate and rectification blade, mounting plate is the plate structure made of stainless steel, the water side of rectification blade is processed into continuous sawtooth structure, the present application is provided with rectification blade, rectification blade is progressively increasing, front end is smaller and the water flow that just enters nozzle contacts, the tooth of rear end is larger, and the water flow that is buffered by front end sawtooth structure contacts, at this time, water flow impact force is smaller, larger sawtooth structure is further rectified to water, realize progressively rectifying, avoid the impact of water flow to rectification blade overall cause greater damage, the rectification block of the present application and water flow contact first, the strength of its trapezoidal structure increases overall, solve the problem that the flow guide vane of existing water turbine nozzle rectifier lacks buffer, is easily damaged after long-term use, affect overall rectification efficiency.

The invention relates to a Vortex Micro Hydropower Plant (HPP) designed to address irregularities in water supply to turbines, enabling efficient electricity generation from small rivers. The vortex micro HPP comprises a vertical pressure cell with upper conical and lower cylindrical parts, an inlet channel peripherally connected to the upper edge of the pressure cell, and an outlet tube channel connected to the cylindrical part of the pressure cell, a hydro turbine placed in the cylindrical part of the pressure cell, while in the conical part of the pressure cell, the wings are located at equal intervals along the wall, which are rigidly attached to radial joints placed in the wall of the pressure cell, to which the telescopic levers with loads are rigidly connected from the outside of the cell.

A hydropower generation system includes a hydropower turbine with both adjustable wicket gates and adjustable runner blades. The hydropower turbine can receive water flow with a head of up to 110 feet. The runner hub of the hydropower turbine can have 8 runner blades that can rotate at a speed of at least 700 revolutions per minute to produce about 500 kW of power from the corresponding generator of the hydropower generation system. In addition, the hydropower turbine can be coupled to the generator with a belt drive that transfers the torque from the hydropower turbine to the generator.

This utility model discloses a V-blade turbine runner structure, belonging to the field of hydropower generation. It includes: a runner disc, a runner water-blocking ring, and several V-shaped blades. The runner disc is mounted on the inner wall of the runner water-blocking ring. The several V-shaped blades are arranged around the center line of the arc surface of the outer circumference of the runner water-blocking ring, with one end of each V-shaped blade connected to the outer wall of the runner water-blocking ring. Compared with the prior art, the V-shaped blades of this application have a "V"-shaped opening, which can both catch the water flow ejected from the nozzle, improving the water flow utilization rate, and reduce the airflow friction resistance generated during high-speed rotation by utilizing the "V"-shaped tip, thereby reducing energy loss and improving energy utilization. When the V-shaped blades rotate to the bottom of the runner disc, they can also unload water, reducing the load on the runner disc and improving the power generation efficiency of the turbine.

The application relates to the technical field of hydroelectric power generation, in particular to an impulse water turbine, a water bucket and a mortise-and-tenon connection structure for the water bucket and a wheel hub. The water bucket comprises a water bucket blade and a tenon head arranged at the root of the blade; the shape of the tenon head is configured to be movably assembled with a mortise groove arranged on the wheel hub of the water turbine in a manner with a matching gap. The structure can realize the movable assembly manner with the matching gap, can make the water bucket have limited displacement in the gradually changing gap under different jet impact load conditions, and thus changes the original traditional rigid connection into a flexible movable connection. The water bucket can be reliably connected with the wheel hub without relying on welding or bolt fixation, and the problem that the water head and the wheel hub weld seam are easily broken under high-strength water impact force in the original mode is solved.

The present application relates to the technical field of intelligent control of hydroelectric power generation, in particular to a water turbine speed regulation adaptive control system based on multi-source data, comprising: data acquisition, feature extraction, coupling relationship analysis, water head prediction, state fusion and instruction generation module. The system collects multiple types of real-time monitoring data of the water turbine, extracts the unit operation stability features by using the harmonic analysis algorithm adaptive to the tracking optimization of the water turbine frequency and its multiple frequency, constructs the hydraulic-mechanical dynamic coupling feature matrix and generates the short-term water head prediction sequence. The multiple features and the prediction sequence are fused to form a comprehensive control state representation, and the speed regulation control instruction is output by the deep reinforcement learning control strategy generator. The system can accurately identify the unit vibration state, match the hydraulic-mechanical coupling change law, adapt to the water head fluctuation trend, make the speed regulation instruction more suitable for the unit real-time working condition, and improve the dynamic adaptation effect of speed regulation.

The utility model discloses a water -turbine generator bearing bush's heat radiation structure belongs to hydroelectric generator technical field, including pumping component, pumping component fixed mounting is in the base side wall, pumping component includes linkage assembly and reciprocating pumping assembly, and linkage assembly is rotatably connected with the base, and linkage assembly is fixedly connected with water turbine axle, and linkage assembly is fixedly connected with reciprocating pumping assembly, and the water inlet end of reciprocating pumping assembly is located hydroelectricity storage reservoir, and the water outlet end of reciprocating pumping assembly is connected with the drainage component for filtering, and the water outlet end of filter component is connected with the liquid outlet component for spraying, and the liquid outlet end of liquid outlet component is located in the bearing bush, and the liquid outlet end of liquid outlet component is located in the base inner top, and the base inner bottom is fixedly connected with the drainage component for drainage, and the drainage component is connected with the water outlet end of filter component, the utility model discloses the bearing bush carries out water cooling under the condition of no additional power, and the use cost is low, and it is favorable to actual use.

The present invention relates to a small hydroelectric power generation system utilizing water flow, wherein the system comprises: a pair of helical turbines (100) having a plurality of helical rotating blades that rotate in opposite directions to enable stable rotation even with resistance and lift caused by water currents and turbulent currents; a support frame (200) that stably supports the pair of helical turbines (100) underwater and can be fixedly mounted with one or more of them; a pair of guides (300) fixedly mounted on the support frame (200) that filter out the attachment of sludge flowing along currents or water flow, divide the fluid flow to allow it to flow into and out of the pair of helical turbines (100), and simultaneously increase rotational inertia to help the stable rotation of the turbines; and a gearbox (400) that matches the high torque of the pair of helical turbines (100) with the high rotational speed of the generator. By implementing a small hydroelectric power generation system using water flow characterized by including a power generation module (500) having a control means (510) that produces and controls alternating current (AC) electricity by the continuous and stable rotation of the above pair of helical turbines (100); and an air-floating body (600) that floats the power generation system to the upper part of the floating body when installing the power generation system underwater or during repair and maintenance, it has the effect of high energy conversion efficiency utilizing both drag force from the water current and lift force from the vortex, and stable power generation and repair and maintenance are possible even in turbulent and rapid currents.

The utility model discloses a kind of multifunctional emergency life-saving rings, it includes sealed upper ring body, lower ring body and middle layer aluminum plate;The lower ring body is provided with energy storage device and water power generation mechanism, the upper ring body inner circle surface is provided with solar photovoltaic panel, the water power generation mechanism is suitable for generating electricity to energy storage device energy storage by water flow wave, the solar photovoltaic panel is suitable for absorbing solar energy to energy storage device energy storage;The upper ring body both sides are provided with water making component, the middle layer aluminum plate is provided with heating mechanism, the upper ring body is also provided with integrated control module;The heating mechanism is suitable for middle layer aluminum plate heating conduction heat to supply overall temperature rise and keep warm and give water making component heating distillation water making, the water making component can distill emergency drinking water and store to supply people use.The utility model can natural power generation to keep temperature and manufacture emergency drinking water, and stability and bearing capacity are higher, and rescue range is wider.

The present application relates to the technical field of hydroelectric power generation and discloses a water turbine power generation system, wherein a wind tunnel is connected with a water turbine chamber through a foundation pit, a water turbine is connected with a generator located in the wind tunnel to drive the generator to generate electricity. An air cooler is arranged in the wind tunnel, the air cooler is connected with a cooling water pipe, and the cooling water pipe is connected with the water turbine through the foundation pit. A condensate water collecting device is arranged in the wind tunnel, the condensate water collecting device is located below the air cooler, the condensate water collecting device is provided with a through hole, the cooling water pipe is arranged in the through hole, the condensate water collecting device is provided with a water collecting tank, and the outer side wall of the air cooler is located between the outer end wall and the inner end wall of the water collecting tank. The water turbine power generation system can collect condensate water, avoid moisture in the wind tunnel and prevent the condensate water from flowing into the water turbine chamber, so as to increase the insulation performance and service life of the electric appliance and avoid abnormal shutdown of the water turbine unit. After the water turbine power generation system stops running, the water in the cooling water pipe is emptied, and the safety hazard is eliminated.

This utility model discloses a speed-adaptive variable pitch vertical axis hydroelectric power generation device for pipelines, including a generator, a transmission output shaft, a counterweight adjustment mechanism, and an impeller mechanism. The generator is coaxially connected to the transmission output shaft. The transmission output shaft is equipped with a counterweight adjustment mechanism and an impeller mechanism. When the transmission output shaft rotates, the counterweight adjustment mechanism generates a suitable centrifugal force to control the blades of the impeller mechanism to adaptively extend outward and retract inward, thereby automatically regulating the speed of the impeller mechanism. Therefore, by adopting this solution, the speed of the impeller mechanism can always be maintained within a preset range, thus effectively solving the problem that the speed of existing water turbines cannot be maintained within the rated speed range of the generator.

This invention discloses a method for controlling the active power of hydropower units based on electrochemical energy storage-assisted regulation, comprising: acquiring an external power input signal, calculating the power deviation between the signal and a preset bundled active power setpoint, and using the power deviation as a target active power regulation command for the joint operation system; inputting the target active power regulation command to a dual PID controller, wherein the dual PID controller allocates corresponding regulation tasks to the turbine regulation system and the electrochemical energy storage regulation system respectively; and dynamically adjusting the allocation weights of the turbine regulation system and the electrochemical energy storage regulation system through the dual PID controller. This invention achieves a constant total bundled output of the integrated energy base by real-time regulation of the active power outside the hydropower station and the electrochemical energy storage station; and provides power regulation compensation performance for the hydropower-electrochemical energy storage joint operation system through an optimized joint operation method.