130 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 utility model discloses a water wheel driving module and hydroelectric power generation equipment, the water wheel driving module comprises two mounting discs and a plurality of blades, and the two mounting discs are arranged up and down; each blade comprises a mounting frame and a plurality of baffles, a plurality of through holes are formed in the mounting frame, and the baffles are hinged to the mounting frame and arranged at the corresponding through holes; the baffle is configured to be located on the incident flow face of the blade to close the through opening, and the blade is further configured to be located on the back flow face of the blade to open the through opening. The multiple blades are distributed around the axis of the installation discs, and the installation frame is vertically arranged and fixedly arranged between the two installation discs. The use reliability and the power generation efficiency are improved, and the manufacturing cost is reduced.

A hydro power generation system may include a powerhouse and an entrance region structure. The powerhouse may include an intake port, a draft port, and a power generator disposed therebetween, the power generator configured to generate electrical power. The entrance region structure may be coupled to the powerhouse and define a portion of a boundary of an entrance region and the natural run-of-the-river portion of a waterway. The entrance region may be distinct from the natural run-of-the-river portion of the waterway and fluidically adjacent to the intake port.

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.

A modular pumped storage hydropower system may include a shaft having a first end located opposite a second end. A reservoir is connected to the first end of the shaft. The second end of the shaft is configured to be located under a surface of ground. The second end of the shaft has a first compartment and a second compartment. The first compartment retains a pump assembly having an inlet in hydro communication with the second compartment. The second compartment is configured to retain water. A pipe has a first end connected to the pump assembly located opposite a second end extending through a cover of the first end of the shaft. The second end of the pipe is in hydro communication with the reservoir. The pipe of the pump assembly transfers water from the second compartment of the second end of the shaft to the reservoir.

The invention discloses an infrared monitoring jet device and method for removing limnoperna fortunei in a pipeline, and belongs to the technical field of pipeline maintenance and cleaning. The breeding of the limnoperna fortunei on the inner wall of the water conveying pipeline causes high cost, low efficiency, environmental pollution and the like; by arranging the infrared monitoring system, the growth condition of limnoperna fortunei on the inner wall of the pipeline can be accurately monitored in real time, and data can be transmitted to the control system in time; the control system performs deep analysis on the received data, and immediately controls the clearing execution system to start the high-pressure water jet device once judging that the scale of the limnoperna fortunei reaches a preset threshold value, so that the limnoperna fortunei is strongly scoured, and efficient clearing is realized; meanwhile, a hydroelectric generation system is ingeniously utilized, water flow power in the pipeline is converted into electric energy, and continuous and stable electric power support is provided for the whole device; the pipeline limnoperna fortunei cleaning device achieves automatic and environment-friendly cleaning of the pipeline limnoperna fortunei, has the remarkable effects of being efficient, energy-saving, safe, reliable and the like, and can be widely applied to maintenance work of various water conveying pipelines.

The disclosure relates to a hydropower equipment with graded utilization of kinetic energy of flowing water, including three steps on the inclined surface of the triangular base from top to bottom, wherein support rods are provided on the vertical surface of each step, runner one, runner two and runner three arranged in sequence from high to low are respectively and rotatably supported on the corresponding support rods through the shaft, all the three shafts are horizontally arranged and connected to the corresponding shaft of the generator; horizontal flow channels are set inside the lower part of the triangular base for guiding water to flow toward downstream direction, and the outlets of the horizontal flow channels directly face runner three.

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.

Retrofitting a hydroelectric power plant (4) with a waterway (2), an electric machine (6), an impeller (5) arranged in the waterway (2) and a cylinder gate, wherein the impeller (5) has an axis of rotation by which an axial (z) and a radial (r) direction are defined, and wherein the cylinder gate comprises a ring (1) and a gate chamber (3) with a housing, and wherein the ring (1) can be moved in an axial direction, and wherein the ring (1) has a projection which is designed to modify a secondary flow in such a way as to suppress unstable states of the cylinder gate at opening degrees below 30%.

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.

A hydro power generation system may include a powerhouse and an entrance region structure. The powerhouse may include an intake port, a draft port, and a power generator disposed therebetween, the power generator configured to generate electrical power. The entrance region structure may be coupled to the powerhouse and define a portion of a boundary of an entrance region and the natural run-of-the-river portion of a waterway. The entrance region may be distinct from the natural run-of-the-river portion of the waterway and fluidically adjacent to the intake port.

The invention belongs to the technical field of hydroelectric power stations, and discloses a submersible hydroelectric power station with a reservoir tail desilting function, which comprises a dam body arranged at the river reach of the reservoir tail of a built reservoir, a liftable gate, a drain hole, a power generation assembly and a desilting structure, the dam body encloses the reservoir tail area of the built reservoir to form a first reservoir, the dam body encloses the secondary area to form a second reservoir, and the drainage hole is formed in a water outlet of the dam body; at least more than 25% of surplus water energy of the built reservoir can be reused through the arranged dam body, full load in the dry season and adjustable stable power generation in the wet season are achieved, the problem of waste of fall water energy in the full-dry season of the original reservoir is solved, the bottom of the submersible power plant is communicated with the second reservoir, and the water head can be directly used for driving the unit. The liftable gate accurately controls the water level difference, it is ensured that power can be generated in the full and dry periods, and the limitation that traditional secondary power generation is only available in the dry period is avoided. And the desilting problem is fundamentally solved, and the environment is protected.

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.

A kinetic hydroelectric energy pumped apparatus (KHEPA) motor for charging electric vehicles (EVs) or providing an off-grid power supply includes a robine in a housing; a battery; an inverter; a transformer; a voltage regulator; a pump-motor; a fluid tank; a fluid; a nozzle; a stator; a wiring harness; a relay; a fluid filler intake hose; pump hoses; a robine outtake hose; and a rectifier, with an optional starter pump. The KHEPA motor may include a central processing unit (CPU) operably connected to the battery, which incorporates the inverter, the transformer, the voltage regulator, and the relay. The robine includes a rotor water wheel, and a plurality of magnets configured to fit inside the stator. The pump conveys the fluid for delivery through the nozzle, rotating the robine and revolving the stator, thereby converting mechanical energy into electricity which may be used or stored in the battery for later use.

The invention discloses a vegetation construction scale optimization method, system and device for reservoir area carbon reduction and a storage medium, and relates to the technical field of reservoir area vegetation construction carbon reduction benefit optimization, and the method comprises the steps: building a correlation model between reservoir area water yield and climate and land utilization based on reservoir ecological environment basic data; constructing a vegetation construction scale scene set based on reservoir area land utilization and climate factors; based on the correlation model and the vegetation construction scale scene set, simulating the water yield and the carbon sequestration amount, and calculating the carbon reduction benefit; on the basis of the carbon reduction benefit, comprehensive benefits under different vegetation construction scale scenes are calculated, and an optimal scheme is determined; according to the method, a scientific and systematic decision-making basis is provided for reservoir vegetation construction in the aspect of carbon reduction benefits, and maximization of the reservoir carbon reduction benefits is achieved on the basis of considering the balance of the two benefits of vegetation carbon sequestration and hydroelectric generation carbon reduction.

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 relates to the technical field of hydroelectric generation, in particular to a fluid speed increasing and pressurizing device, power generation equipment and a water pump, the fluid speed increasing and pressurizing device comprises a main body pipe, a paddle assembly, a drainage pipe, a boosting part and a transmission assembly, a liquid passing hole and an avoiding hole are formed in the side wall of the main body pipe, and the paddle assembly is installed at the position, corresponding to the avoiding hole, of the outer wall of the main body pipe; the lyophobic pipe can rotate around the axis of the main body pipe and is arranged in an inner cavity of the main body pipe, and the boosting piece is installed at the liquid inlet end of the lyophobic pipe; the transmission assembly is arranged at the receding hole and used for transmitting rotating power of the paddle assembly to the boosting piece so as to push fluid to flow towards the liquid outlet end of the liquid drainage pipe. Water flow pushes the paddle assembly to rotate so as to drive the boosting piece at the liquid inlet end of the lyophobic pipe to rotate, and the rotating speed of the boosting piece is increased by utilizing the transmission ratio of the paddle assembly to the boosting piece, so that the water flow entering the lyophobic pipe is accelerated and pressurized, and the kinetic energy of the water flow flowing out of the lyophobic pipe is improved; and the conversion efficiency of converting water flow kinetic energy into mechanical energy is improved.

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 application discloses a kind of drilling hole bottom transient electromagnetic water disaster real-time detection device, using hydraulic drive rotating coil mode to realize to the hidden water disaster in the radial certain range of drilling hole bottom is inquired, using hole bottom relay and cable drilling rod internal signal transmission line etc. Conventional method can be realized with the connection of detection device, realize the real-time transmission of hole bottom data, provide timeliness guidance for drilling, break through the drawbacks of the increase of secondary push workload, timeliness is not enough. At the same time, the power supply component driven by the principle of hydroelectric power is arranged in the detection device, which can meet the power supply of the equipment under long-term use, and the two independent battery charging, power supply periodic switching mode continuously supports the rotating transmitting rotating coil work, breaks through the battery capacity limit, and provides guarantee for real-time detection.