81 results about "Hydro power" patented technology

A coordinated optimization method for VSC-HVDC Frequency Synchronization Control and primary frequency regulation of hydropower includes: obtaining optimal PI parameters of the VSC-HVDC Frequency Synchronization controller from a first layer output of a dual-layer optimization model for coordinated parameters of VSC-HVDC Frequency Synchronization and primary frequency regulation; and obtaining a target PID control parameters from a second layer output of the dual-layer optimization model. The coordinated optimization method further includes adjusting the optimal PI parameters of the synchronization controller based on the target selection range and updating the PID control parameters of the primary frequency regulation system of hydropower based on the target PID control parameters. This approach aims to address the challenge of balancing the frequency response speed between the VSC-HVDC synchronization system and the primary frequency regulation system of hydropower.

The invention relates to the technical field of hydroelectric power generation equipment structure reliability evaluation, and particularly provides a water turbine top cover bolt time-varying reliability evaluation method and device based on parameter sensitivity analysis. According to the technical scheme provided by the invention, key variables are highlighted through parameter sensitivity analysis, and the response surface method and Monte Carlo simulation are combined, so that the calculation efficiency is remarkably improved while the precision is ensured, and the reliability evolution rule of the bolt in the whole life cycle can be scientifically represented; and an important basis is provided for maintenance decision and structure optimization of the water turbine top cover bolt.

The utility model relates to the technical field of bathroom products, in particular to a water temperature digital display device for a bathroom shower head, which comprises a hydroelectric generation component arranged on the shower head, a battery, a temperature sensor, a microcontroller and a digital display component, according to the hydroelectric generation assembly, a pressurizing plate is arranged in a water inlet pipe of a shower head, a rotating coil is rotatably arranged in the water inlet pipe through a rotating shaft, the pressurizing plate is provided with a plurality of jet flow holes, the jet flow holes convert kinetic energy of water flow into pressure energy to pressurize water, and the flow speed of the water flow is increased after the water flow penetrates through the jet flow holes; therefore, the rotating coil rapidly rotates to generate electricity under the impact effect of water flow, the generating voltage of the hydroelectric generation assembly is kept stable, even if the water pressure is small and unstable, the digital display component can normally display the water temperature, and the problems that an existing digital display bathroom shower head on the market is unstable in water pressure and inconvenient to use are solved. And the digital display screen does not display the water temperature or splash screen at low brightness.

The utility model provides a symmetrical steel branch pipe spiral flow state elimination composite guide plate device, a spiral flow state elimination composite guide plate unit comprises four spiral flow state elimination composite guide plate subunits, and each spiral flow state elimination composite guide plate subunit comprises a composite guide plate and a plurality of parallel guide plates; the composite flow guide plate and the parallel flow guide plates are sequentially arranged in the direction from near to far away from the datum line; and moreover, the front ends of the composite flow guide plate and each parallel flow guide plate and the tail end of the crescent rib plate are kept on the same horizontal line vertical to the datum line. According to the device, the vortex eliminating effect of the guide plate in the pipe is utilized to cut the pressurized water flow in the incoming flow direction so as to eliminate vortexes in the pressurized water flow, so that the vortexes in the pressurized hydraulic pipeline are effectively eliminated or weakened on the basis of not changing the external structure of the branch pipe and not influencing the efficiency, and finally small head loss is contributed to the whole hydroelectric generation system; and the efficiency and the operation safety of the hydroelectric generation system are improved.

The invention relates to the technical field of hydroelectric power generation hub safety monitoring, and discloses a truss type plane steel gate health monitoring system based on a multi-dimensional coupling sensing network, the system is constructed with nine modules, and the structure response data of a truss type plane steel gate are collected in real time through a sensor monitoring module; a high-reliability communication link is constructed in a data transmission module, noise suppression and feature enhancement are completed in a data preprocessing module, a dynamic load reconstruction module inverts a water flow impact load based on a hydrodynamic theory, and a damage diagnosis module fuses multi-source sensing information to realize microdefect identification. An inclination angle-water pressure coupling model is established through a posture safety evaluation module to judge the operation risk level, when an early warning decision module recognizes abnormity, grading alarm is automatically triggered, starting and stopping equipment is controlled in a linkage mode, and all monitoring data is stored in a distributed database through a data management module to form a full-life-cycle file; and finally, a visual billboard and an interaction control function are provided for the PC terminal / mobile terminal through the user interface module.

The invention relates to the technical field of hydroelectric power generation equipment state monitoring and intelligent operation and maintenance, and particularly provides a pumped storage unit shafting digital twinborn visualization method and device, and the method comprises the steps: taking the data collected by a physical sensor of a pumped storage unit as the input of a pre-constructed POD-BP neural network agent model; obtaining an intrinsic mode and a time coefficient matrix corresponding to the intrinsic mode, wherein the intrinsic mode is output by a pre-constructed POD-BP neural network agent model and represents shafting dynamic response characteristics; obtaining global physical field data of the pumped storage unit through reconstruction based on the intrinsic mode and the corresponding time coefficient matrix; and mapping the global physical field data to a shafting three-dimensional geometric model corresponding to the pumped storage unit, and performing real-time rendering by using a visualization engine. According to the technical scheme provided by the invention, decision support is provided for predictive maintenance of the equipment, the cognitive depth and efficiency of personnel on the equipment state are greatly improved, and a powerful tool is provided for intelligent operation and maintenance.

The invention relates to the technical field of sewage treatment, and aims to solve the problems that an existing sewage treatment device depends on external power grid power supply, so that application scenes are limited, deployment and application are difficult, environment adaptability is poor, energy consumption loss is serious, and operation cost is high. The invention provides an integrated self-power-generation type sewage treatment device. According to the device, a hydroelectric generation module and a sewage treatment unit are deeply coupled ingeniously through a four-in-one innovative design of structure fusion, energy conversion, process optimization and capacity self-use, sewage is treated in order by adopting a partition series connection type structure, and the power generation device is driven by water flow kinetic energy in the treatment process; closed-loop energy supply is formed in cooperation with an energy storage and intelligent regulation and control system, and the power constraint of traditional equipment is fundamentally broken through. The system is especially suitable for rural areas without power grid coverage, islands, field operation campsites, emergency relief and other scenes with unstable power supply, and the technical breakthrough of'sewage treatment energy self-supply, low carbon and no energy consumption 'is achieved.

The invention relates to the technical field of hydroelectric generation, and discloses a drum-type power generation and water pumping system for intercepting river or ocean current. Comprising a roller, a flange, a blade, a front end cover, a rear end cover, a bolt, a screw, an oil filling hole countersunk head screw, a mechanical seal, a framework oil seal, a hollow stator axis, a spline, a screw thread, a spline sleeve, a nut, a movable pin, a transmission shaft, a cable and a movable pin hanging ring. At the same time, a level difference is formed between the upstream water surface and the downstream water surface of the roller, the water flow pushes the blades below the roller to promote the roller to continuously roll, and then the generator or the water pump connected to the two ends of the roller is driven to operate, and meanwhile the lever-like principle is utilized to counteract the counter-acting force of the generator hollow stator axis rotating along with the rotor through the transmission shaft connected with the spline housing. Only the rotor of the generator rotates while the stator is kept static, so that stable power generation is realized.

The utility model belongs to the technical field of direct-drive hydroelectric power generation devices, particularly relates to a horizontal-flow type permanent magnet direct-drive hydroelectric power generation device, and aims to solve the problem that the installation of the hydroelectric power generation device is unstable due to the fact that an existing horizontal-flow type permanent magnet direct-drive hydroelectric power generation device cannot fix a fixed supporting seat. The device comprises a fixed supporting seat; the fixing device is arranged on the fixed supporting seat; the limiting device is arranged on the fixing device; the lifting device is arranged on the fixed supporting seat; the rotating device is arranged at the bottom of the lifting device; the filtering device is arranged on one side of the rotating device; the conversion power generation mechanism is arranged on the rotating device; according to the hydraulic power generation device, the fixed supporting seat can be fixed, so that the purpose of improving the installation stability of the hydraulic power generation device is achieved.

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.

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 present invention provides a diffuser, power generation device, and hydroelectric power generation system that can increase power generation by accelerating the flow of water. [Solution] A diffuser in which a water flow entering from a first opening is discharged from a second opening that is larger than the first opening, comprising: an enlarged diameter portion connecting the edge of the first opening and the edge of the second opening; an intake portion having an arc-shaped lip formed on the outer edge of the first opening; and a flange extending outward from the outer edge of the second opening, perpendicular to the central axis connecting the centers of the first and second openings, a diffuser for water flow power generation, a power generation device using the same, and a power generation method.

The invention discloses a hydraulic turbine set diagram neural monitoring and maintenance planning optimization system, belongs to the technical field of intelligent operation and maintenance of hydraulic power generation equipment, and aims to solve the technical problem that the intelligent degree of maintenance planning of a hydraulic turbine set is insufficient. The system comprises a data acquisition module, a graph structure modeling module, a graph neural network processor, a maintenance optimization calculation module and a man-machine interaction output module. Compared with a traditional method, the maintenance decision accuracy can be effectively improved, the unplanned shutdown time is shortened, and the service life of key components is prolonged.

The disclosure relates to a hydropower device with its operation driven by a combination of lift and drag forces. The device comprises a shaft, a lift-type runner, a first-stage drag-type runner, and a second-stage drag-type runner, wherein the lift-type runner, the first-stage drag-type runner, and the second-stage drag-type runner are coaxially installed on the shaft. The shaft is rotatably installed on a supporting frame. The first-stage drag-type runner and the second-stage drag-type runner are mounted in series on the shaft. A disc generator is installed on the shaft and meanwhile in the middle of the first- and the second-stage drag-type runners. A lift-type runner is connected to the shaft through struts, and the blades of the lift-type runner are oriented in the periphery of the first-type and the second-type runners.

The invention discloses a water gate power generation device with a trash holding function for a water conservancy project, and relates to the technical field of hydroelectric power stations. The water gate power generation device comprises a power generation flow channel formed in a dam body, a water gate main body used for opening and closing the power generation flow channel and a power generator set located at the downstream of the power generation flow channel; a first trash holding assembly and a second trash holding assembly are sequentially arranged at the water inlet end of the power generation flow channel in the water flow direction. The first trash holding assembly comprises a trash holding grid and a conveying belt, and the conveying belt is used for taking trash held by the trash holding grid away from the water surface; the second trash holding assembly comprises a plurality of trash cleaning roller sets which are vertically arranged side by side, each trash cleaning roller set comprises a trash cleaning roller which is vertically and rotationally arranged, the surface of each trash cleaning roller is provided with a spiral trash cleaning strip in the axis direction of the trash cleaning roller, and the conveying belt drives the trash cleaning roller sets to rotate through a transmission mechanism; and the spiral cleaning strip is used for upwards conveying and cleaning tiny floating objects. The generator set has the effect of reducing the probability that the generator set is damaged due to invasion of dirt.

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 invention discloses a method for storing and releasing energy and obtaining geothermal energy through artificial stratum cracks. The method comprises the steps that an energy storage geothermal layer containing geothermal resources and not containing oil gas is recognized; high-pressure fluid is injected into a target shaft, so that a target artificial stratum fracture is generated, or a target original stratum fracture in a closed state in the target shaft in the energy storage geothermal layer is opened; normal-temperature high-pressure fluid is injected into the target wellbore, so that the width of the stratum fracture is increased, stratum rock is elastically deformed to store energy, and the fluid in the stratum fracture exchanges heat with the energy storage geothermal layer; when the width of the ground layer crack reaches the target width, the reverse exhaust pipeline is closed to enable the fluid to continuously exchange heat with the energy storage geothermal layer so that the fluid can store heat; and high-temperature and high-pressure fluid reversely discharged in the stratum fracture closing process is used for driving hydroelectric power generation equipment and geothermal power generation equipment to generate power, so that the obtained geothermal energy and the stratum rock elastic deformation energy are converted into electric energy to be released.

The present application relates to the technical field of hydroelectric power generation, and discloses a method and system for optimizing economic operation of cascade hydropower stations, comprising the following steps: establishing a hydraulics relationship model of the cascade hydropower stations and a dynamics characteristic model of the cascade hydropower stations according to the hydropower topological relationship of each hydropower station in a river basin; determining a target function of the cascade hydropower stations in the river basin by using a water-determined power or power-determined water operation mode according to the hydraulics relationship model and the dynamics characteristic model of the cascade hydropower stations in the river basin; and optimizing and solving the target function of the cascade hydropower stations in the river basin determined by the water-determined power operation mode or the target function of the cascade hydropower stations in the river basin determined by the power-determined water operation mode to obtain a target function value of the cascade hydropower stations in the river basin, i.e. the optimal economic operation efficiency of the cascade hydropower stations in the river basin. The present application has the characteristics of high model precision and good optimization effect, and can optimally distribute the loads of the units of each hydropower station in the cascade hydropower stations.

The invention relates to the technical field of spaceflight rockets, in particular to a motor Weishi rocket engine three-view PD-3S rocket passive propeller power generation system and method, by arranging the passive propeller power generation system, a large amount of residual energy generated in the rocket launching process can be effectively recycled, and then the energy utilization efficiency is improved; in addition, due to the fact that the passive propeller power generation system does not need extra fuel, resources can be saved, environmental pollution can be reduced, the concept of sustainable development is met, meanwhile, the passive propeller power generation system has the advantages of being simple in structure, high in reliability, long in service life and the like, and therefore the passive propeller power generation system can work in various environments and has wide application prospects. In addition, the passive propeller power generation system can also be applied to other fields such as wind power generation and hydroelectric generation, jet flow energy of a rocket engine is used for driving a wind power generator or a hydroelectric generator to rotate, and energy conversion and utilization are achieved.

This invention provides hydroelectric power generation equipment that can generate electricity more efficiently than conventional methods by utilizing the flow of water in rivers, irrigation canals, and other waterways. [Solution] The present invention relates to a hydroelectric power generation facility that generates electricity by water power while being moored in the middle of a water flow, comprising: a float 1 forming a hull that floats on the water; a channel 2 provided in the shape of a groove in the float 1 that is open in the direction of the water flow when the float 1 is moored and whose bottom surface is submerged below the waterline; a water turbine 3 mounted on the float 1 to rotate in response to the water flow through the channel 2; and a generator 6 mounted on the float 1 to generate electricity using the rotational force of the water turbine 3, wherein the width and depth dimensions of the water intake 2a of the channel 2 are formed to gradually expand toward the upstream side.

The utility model relates to the technical field of hydroelectric generation, in particular to a hydropower station water inlet stoplog gate state monitoring system which comprises a counting mechanism and an in-situ control unit. Wherein the counting mechanism is arranged at the top of the door groove and is composed of a trigger component and an induction component, the induction component is electrically connected with the local control unit, one end of the trigger component extends into the track groove, and the trigger component is configured to be in a closed state. And when the stop log small door in the track groove corresponding to the trigger component is hoisted out / in, the trigger component is in contact with the side edge of the stop log small door and triggers the sensing component. According to the utility model, the counting mechanism is arranged at the top of the gate groove, and the sensing component is triggered through the contact between the triggering component and the side edge of the small stop log gate, so that the hoisting-out or hoisting-in times of the small stop log gate in each track groove can be accurately recorded, and accurate stoplog gate state information and stoplog gate hoisting-in / hoisting-out quantity information are provided for operators; and the real-time state of the stoplog door can be mastered.

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 discloses an adjustable lighting system for a sewage treatment plant, and relates to the technical field of hydroelectric generation, the adjustable lighting system comprises a lighting module and a power generation module, the power generation module comprises two water wheels used for generating power and a sewage pipe arranged above the water wheels, the sewage pipe is located between the two water wheels, and the sewage pipe is connected with the lighting module. And the sewage drives the two water wheels to rotate reversely when flowing downwards. According to the adjustable lighting system for the sewage treatment plant, sewage in the sewage pipe can impact the two water wheels at the same time when being discharged, so that a sewage flowing path is far away from the centers of the water wheels as much as possible, and meanwhile, the situation that the sewage is not in contact with the water wheels and is directly discharged is avoided as much as possible; therefore, power of sewage is effectively utilized to enable the two water wheels to rotate so as to generate electricity, and then power is provided for the lighting module.

The present invention provides a system for generating electricity comprising a drum having an inlet and an outlet, a lower frustro-conical portion, and preferably an upper frustro-conical portion; a pump in operative connection with the inlet for supplying a fluid to the drum at a desired velocity; and a turbine located within the drum adjacent the outlet, and in operative connection to a generator; wherein the fluid supplied by the pump to the drum is subjected to centrifugal force before passing through the outlet and returning to the pump.

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.

The objective is to provide a hydroelectric power generation device that generates electricity by rotating a water turbine using the energy of flowing wastewater, with a simple configuration that can be installed relatively easily and at low cost, and can be installed not only in new buildings but also in existing buildings. [Solution] In a multi-story building such as a high-rise building or high-rise apartment building, a water turbine power generation device is provided that generates electricity by rotating a water turbine 13 using the flow energy of domestic wastewater that is drained from the upper floors and flows down a drainage vertical pipe 21. A portion of the lower floor portion of the drainage vertical pipe 21 is cut off, and a box-shaped case 2 equipped with a power generation water turbine 13 is placed in the cut-off portion 22, and the domestic wastewater flowing down from the drainage vertical pipe 21 hits the end of the power generation water turbine 13 and drives it to rotate.

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.