321 results about "Hydro power" patented technology

The invention discloses a machine learning correction forecasting method for wind and light elements of a new energy power station in a complex terrain, which relates to the technical field of data processing and comprises the following steps: acquiring a multi-source observation data set of a target area, and performing numerical forecasting assimilation on the multi-source observation data set of the target area; obtaining an output data set of the water-wind-light power station in the target area, and determining a forecasting factor through a statistical method based on the multi-source observation data set and the output data set assimilated by numerical forecasting; establishing and training a joint prediction model according to the prediction factors; and obtaining weather forecast data of the target area in the to-be-predicted time period, and predicting the hydroelectric power generation power, the wind power generation power and the photovoltaic power generation power of the water-wind-light power station in the target area in the to-be-predicted time period through the joint prediction model based on the weather forecast data of the target area in the to-be-predicted time period. According to the method, the initial field is improved through data assimilation, so that the numerical forecasting effect is improved.

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 discloses an impact type rotating wheel hollow water bucket structure and a manufacturing method thereof, and relates to the technical field of hydroelectric power generation, in particular to the manufacturing method of the impact type rotating wheel hollow water bucket structure, which comprises the following steps: S1, preparing an impact type rotating wheel hub and a water bucket root solid area through forging, milling, polishing and other process means; s2, calculating a water bucket hollow part model through the working stress of the rotating wheel; and S3, the prepared rotating wheel hub is clamped to a positioner, and according to the model calculated in the above steps, the additive manufacturing of the rotating wheel hollow water bucket is achieved by continuously and cooperatively adjusting the spatial position of the rotating wheel and the posture of a welding gun. The invention has the advantages of reducing the weight, improving the stability, reducing the inertia, prolonging the service life, saving the cost, promoting the sustainable development, optimizing the structural design, improving the performance, improving the efficiency, reducing the energy consumption, being convenient to manufacture and maintain and enhancing the adaptability.

The invention discloses vertical shaft hydroelectric power generation equipment which comprises a power generation module and a power output module, the power generation module comprises a floating platform, a power generator and a power input shaft, the power input shaft is vertically arranged and arranged on the floating platform in a swinging mode, the power generator is arranged on the floating platform, and a motor shaft of the power generator is in transmission connection with the power input shaft; the driving module comprises a water wheel assembly, the water wheel assembly comprises a plurality of blades, the blades are distributed around the rotating axis of the water wheel assembly, and the water wheel assembly is connected with the power input shaft; the counterweight assembly comprises a connecting rod, a rotating seat, a first anchor chain and a first counterweight part, the lower end part of the connecting rod is rotatably arranged on the rotating seat, and the first anchor chain is connected between the rotating seat and the first counterweight part; the upper end of the connecting rod is connected to the bottom of the water wheel assembly. The power generation efficiency of the hydroelectric power generation equipment is improved.

The invention relates to the technical field of power generation dispatching, and particularly discloses a water-light complementary joint optimized power generation dispatching system and method, which are used for solving the problem of how to improve on the basis of a fixed voltage method and a conductance increment method, combine the advantages of the two methods and improve the defects of the two methods. The system comprises a monitoring module, a feedback module, an adjusting module, a control module, an energy storage module and a communication module, an improved fixed voltage method and an incremental conductance method are provided, the fixed voltage method is improved by dynamically adjusting a coefficient, and the power generation scheduling problem of water-light complementation combination in a distributed energy system and a micro-grid is solved. Fourier transform and inverse Fourier transform are combined with a frequency response function to optimize an incremental conductance method; photovoltaic and hydroelectric power generation data and system load requirements are monitored in real time, power generation output is adjusted in real time by adopting an improved fixed voltage method and an improved conductance increment method, performance is optimized through a frequency response function, dynamic changes of a micro-grid are adapted, and power output is smoothed through an energy storage management function.

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 power generation system may include an impoundment structure at least partially defined by a plurality of precast segments. At least one of the precast segments may include a precast form and at least one precast infill block. The power generation system may include a powerhouse. At the powerhouse, a fluid conduit is coupled to an intake tube and a draft tube in respective transition regions to enable fluid to flow into a power generating module to produce electrical power, and transition collar(s) may be employed to secure connectivity between the fluid conduit and the intake tube and the draft tube. The power generating module may be arranged such that an intake port is elevated with respect to a draft port at the power generating module. Sensors may be employed to monitor integrity of elements of the power generation system.

The invention provides a farmland irrigation water body suspended matter capturing device and a using method, the farmland irrigation water body suspended matter capturing device comprises a hydroelectric generator and a capturing device which are arranged in a ditch in the water flow direction, the bottom of the capturing device is provided with a low-position water passing channel, the end of the low-position water passing channel is provided with a valve plate moving along with rising of the water level, and the valve plate is used for blocking the low-position water passing channel; a plurality of rotating capturing frames are arranged at the top of the capturing device, and the rotating unfolding direction of the capturing frames is the same as the water flow direction; a plurality of electrode plates are arranged on the two sides of the capturing device, and each electrode plate comprises a positive electrode and a negative electrode which are arranged on the two sides of the capturing device respectively and used for adsorbing suspended solids in water. Through comprehensive utilization of hydroelectric generation, electrode plate electrostatic adsorption, mechanical filtration and automatic adjustment technologies, the problem that existing irrigation water is high in sand content is effectively solved, cleanliness of the irrigation water is ensured, and the efficiency and quality of farmland irrigation are improved. The technical scheme is simple and convenient to operate, low in maintenance cost, environment-friendly, energy-saving and wide in application prospect.

A process and apparatus for producing biofuel from biorenewable feedstock is disclosed. The process comprises hydrotreating the biorenewable feed stream in a hydrotreating reactor to hydrodeoxygenate a biorenewable feed stream to provide a hydrotreated effluent stream. The hydrotreated effluent stream is separated in a hot separator into a hot separated vapor stream and a hot separated liquid stream. A hydroisomerization feed stream is taken from the hot separated liquid stream and hydroisomerized in a hydroisomerization reactor to provide a hydroisomerized stream. All or a portion of a return stream taken from the hot separated vapor stream is recycled to the hydroisomerization reactor. The disclosed process and apparatus minimize the carryover of the normal C16 to the biofuel and maximizes the hydroisomerization of n-paraffin hydrocarbons in the hydrotreated effluent stream to produce a biofuel which meets the biofuel specification without affecting or compromising the biofuel yield.

An improved electrical generation system explained herein is a method and equipment whereby nuclear reactors are used to directly propel water pumps to lift water from a lower-elevation body of water to a higher-elevation body of water, where it is stored as potential energy.In one application of this method, one or more water pumps, each powered directly by heat from a nuclear reactor, lift water from down-stream of a river, stream, or pond to upstream of a dam at which a hydro-power plant is installed. The nuclear reactor may be of the pressurized-water, boiling-water, liquid metal cooled, or molten salt-cooled type. Small modular reactors (SMRs) are ideally suited to provide pumping heat in an incremental manner in such a method. Reactor heat output may be proportionally diverted to pumping or desalination loads to maintain the reactor core power level at a constant optimized steady state. Upon demand, the lifted water is used to generate electricity utilizing the hydro-power plant. A weir or small dam may be constructed across the river or stream downstream of the heat powered pump, the function of which is to create a reservoir or pool from which water can be pumped.This way, water can be recycled and used more than once to generate electricity, and the reactor can be operated at a steady state power level in conjunction with a preexisting hydro-power plant, thus allowing generation of electricity year-round despite lower water flow conditions.

A process and apparatus for producing biofuel from biorenewable feedstock is disclosed. The process comprises hydrotreating the biorenewable feed stream in a hydrotreating reactor to hydrodeoxygenate a biorenewable feed stream to provide a hydrotreated effluent stream. The hydrotreated effluent stream is separated in a hot separator into a hot separated vapor stream and a hot separated liquid stream. A hydroisomerization feed stream is taken from the hot separated liquid stream and hydroisomerized in a hydroisomerization reactor to provide a hydroisomerized stream. All or a portion of a return stream taken from the hot separated vapor stream is recycled to the hydroisomerization reactor. The disclosed process and apparatus minimize the carryover of the normal C16 to the biofuel and maximizes the hydroisomerization of n-paraffin hydrocarbons in the hydrotreated effluent stream to produce a biofuel which meets the biofuel specification without affecting or compromising the biofuel yield.

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 power generation system may include an impoundment structure at least partially defined by a plurality of precast segments. At least one of the precast segments may include a precast form and at least one precast infill block.

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 provides a bulkhead gate system for a tail water outlet, which adopts two gate units which are respectively arranged on the side close to a unit and the side close to tail water of the tail water outlet of a power plant; wherein the gate unit close to the unit side is arranged in a one-hole one-door one-machine mode, the gate unit close to the tail water side is arranged in a multi-hole one-door one-machine mode, the function reliability of the tail water bulkhead gate can be remarkably improved through the double-gate structure, and the situation that the gate cannot be closed to stop water can be basically avoided. The tail water outlet bulkhead gate system comprises a first gate unit arranged on the side close to a unit and a second gate unit arranged on the side close to tail water. Wherein the first gate unit comprises a plurality of first gate modules in one-to-one correspondence with water outlet holes of the hydroelectric power plant; the second gate unit comprises a second hoist, second bulkhead gate grooves in one-to-one correspondence with the tail water side hole sites and a plurality of second bulkhead gates.

To provide a float-type hydraulic power generation device that can be easily transported to and installed at a desired location suitable for small hydraulic power generation, can be operated without interruption by dusts flowing in a water passage, and does not require external motive force.SOLUTION: A float-type hydraulic power generation device includes: a hydraulic turbine-type dust removal unit 2 which removes dust from water flowing in an open-channel water passage 6 such as a middle or small river and an agricultural water channel; a hydraulic power generation unit 3; and a float 4. The hydraulic turbine-type dust removal unit 2 and the hydraulic power generation unit 3 are integrally assembled into a unit assembly 5, with the former on an upstream side of the water passage 6 and the latter on a downstream side of the water passage 6. A duct 24, inside of which a hydraulic turbine of the hydraulic power generation unit 3 is disposed, is coupled and connected to a flow outlet which is provided in the hydraulic turbine-type dust removal unit 2 and through which clean water from which dust has been removed flows. The clean water flows through the flow outlet into the duct 24 to rotate the hydraulic turbine. The float 4 is coupled to the unit assembly 5 to hold the float in the flow passage 6 in a floating manner.SELECTED DRAWING: Figure 1

Processes and apparatuses for hydrotreating a feed stream comprising a biorenewable feedstock. The process comprises hydrotreating the feed stream in the presence of hydrogen and a hydrotreating catalyst to provide a hydrotreated stream and isomerizing an isomerization feed stream in the presence of a hydrotreating catalyst to provide an isomerized stream. The isomerization feed stream includes at least a portion of the hydrotreated stream. Electric heaters are provided for one or both recycle vapor streams.

A multi-fluid blending system employing low-energy static mixing provides efficient mechanical blending process for mass-producing thermodynamically stable hydro-fuels, eliminating the need of high-energy mixing equipment, and maintaining a compact, cost-effective design. Suitable for small to large-scale production, the system produces microemulsions following Hydrophilic-Lipophilic Difference (HLD) surfactant formulations. Modular design allows for scalable applications, from equipment installations to trailer-mounted units and onboard ships. The system ensures the production of hydro-fuel microemulsions using precise metering, dosing systems and low-energy static mixing. Hydro-fuels produced reduce engine combustion emissions and harmful pollutants, hydrocarbons, particulate matter, black carbon and smoke opacity, benefiting the environment and human health.

A hydroelectric power generation and energy storage device based on water level variation, comprising: a floating unit, a submerged component, and a waterborne power generation component. The waterborne power generation component comprises a waterborne reservoir (1); the submerged component comprises a submerged pumping assembly, a submerged containment cylinder, and a submerged support frame structure (17), and the containment cylinder is provided with a first one-way valve (19050) and a second one-way valve (19060). When the tide rises and the water level increases, the floating unit ascends, so that the submerged pumping assembly is driven to move upwards, the pressure in the submerged containment cylinder is reduced, and then seawater or river water is pumped into the submerged containment cylinder by means of the first one-way valve (19050). When the tide falls or the water level decreases, the floating unit descends, so that the submerged pumping assembly is driven to move downwards, and then seawater or river water in the submerged containment cylinder is pumped into the waterborne reservoir (1). According to the device, a waste ship is used, kinetic energy of water flow is converted into potential energy of water by means of water level variation, and then the potential energy is converted into electric energy, thereby achieving the objective of power generation or energy storage.

The present invention relates to a hydroelectric power generation system. Disclosed is a hydroelectric power generation system comprising: a waterwheel installed in a waterway and having a lower portion submerged in flowing water to rotate by receiving kinetic energy from the flowing water to generate electric energy through a generator installed on a rotary shaft; a vane module which is provided on the outer circumferential surface of the water wheel and is folded / unfolded as same moves into / out of the flowing water; and a water storage tank which stores the flowing water having passed through the water wheel and supplies water to the front of the waterway in which the vane module is submerged, when the amount of flowing water in the waterway is insufficient.

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 hydroelectric power generation equipment, in particular to a novel hydraulic turbine set which comprises a bottom ring, a base ring is fixedly welded to the outer side surface of the bottom ring, fixed guide vanes are welded to the top face of the base ring, a top seat ring is arranged above the base ring, and the tops of the fixed guide vanes are fixedly welded to the bottom face of the top seat ring. A foundation ring is fixedly welded to the bottom face of the bottom ring, a movable guide vane bearing hole is formed in the top face of the bottom ring, a limiting cavity is formed in the inner side surface of the bottom ring, and balls are arranged in the limiting cavity. According to the novel hydraulic turbine set, the bearing structure is arranged in the bottom ring, and the bearing in the bottom ring is connected with the rotating wheel through connecting structures such as the connecting channel steel and the inserting groove, so that the vortex rotating wheel of the hydraulic turbine can be in direct butt joint with the bottom ring, auxiliary rotation is achieved under the effect of the bearing, stress sharing of the rotating wheel is achieved, and the bottom ring does not only have the limiting effect any more; the rotating wheel can rotate more smoothly and stably, and the structural strength and the power generation stability are improved.

The invention discloses hydraulic engineering concrete conveying equipment based on hydroelectric power plant construction, and relates to the technical field of concrete transportation, the hydraulic engineering concrete conveying equipment comprises a body arranged in an inclined tubular shape, and the body is arranged in a coaxial double-barrel shape; the spiral conveying blade is coaxially and rotatably arranged in the body so as to convey the concrete from the low end to the high end; the anti-segregation units are arranged in the direction of the central axis of the body at equal intervals, and each anti-segregation unit comprises an elastic piece which is in an arc-shaped plate shape and is evenly distributed on the inner wall of the body in the circumferential direction. According to the invention, through the arrangement of the elastic piece and the grading gas circuit unit, a composite force field of axial propulsion and radial extrusion is formed through the spiral blade to forcibly mix and compact aggregate and cement paste again on concrete at a corresponding position, so that the influence on the quality of the concrete due to separation of the aggregate and cement is effectively avoided, and the transportation effect is improved.

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.

A Pelton turbine comprising a rotor with a horizontal axis of rotation and a supply system with at least four nozzles which surround the rotor in a uniformly distributed manner in the circumferential direction, and wherein the supply system comprises a first arm (1) and a second arm (2), and wherein the first arm (1) is connected to at least two adjacent nozzles, and wherein the second arm (2) is connected to the remaining nozzles, and wherein each arm (1, 2) comprises a strand which partially wraps around the rotor, from which at least one first pipe branches off to a first nozzle, and wherein a further nozzle forms the end of the strand, and wherein each arm (1, 2) comprises a bend (1.1, 2.1) and a connecting pipe section (1.2, 2.2), and wherein the axes of the connecting pipe sections (1.2, 2.2) are aligned parallel to the axis of rotation of the rotor, and wherein each connecting pipe section (1.2, 2.2) is connected to the turbine via the associated bend (1.1, 2.1) is connected to the corresponding strand.

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 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 present invention relates to the technical field of hydroelectric power generation equipment, and discloses a turbine-type hydroelectric power generation equipment and a power generation method based on a pressurized water inlet pipe. In the present invention, after water flows through each liquid inlet channel and is guided by each guide vane, the arrangement of each liquid inlet channel of the vortex spiral flow channel ensures that the water flow can be evenly divided by the guidance of each guide vane, and output to the driving rotor at the same flow rate, thereby impacting and driving the driving rotor to rotate. The driving rotor rotates and simultaneously drives the generating rotor to rotate within the magnetic power generation mechanism to generate electricity. The input water flow is finally collected by the bottom drainage mechanism and then divided into several water flows for separate output. This can stably utilize the water flow energy input from each liquid inlet channel, ensure the stability of the generated power, and at the same time, avoid fluctuations in the generated power that affect the stability of the power grid.