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249 results about "Hydro generator" patented technology
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Method, device and equipment for detecting regional quality of movable guide vane shaft sleeve
PendingCN119666985ASimulation is accurateImprove detection accuracyAnalysing solids using sonic/ultrasonic/infrasonic wavesProcessing detected response signalControl engineeringMechanical engineering
The invention provides a movable guide vane shaft sleeve area quality detection method, device and equipment, and belongs to the technical field of movable guide vane shaft sleeve detection. The method comprises the following steps: acquiring a target detection condition parameter; wherein the target detection condition parameters are obtained by optimizing detection condition parameters of a hydroelectric generating set movable guide vane simulation model determined by a simulation model constructed based on the hydroelectric generating set movable guide vane; and controlling the detection tool device to perform phased array detection on the shaft sleeve area of the movable guide vane of the hydroelectric generating set according to the target detection condition parameters, and identifying defects of the shaft sleeve area of the movable guide vane of the hydroelectric generating set. By optimizing the simulation model and the detection parameters, the precision, efficiency and reliability of shaft sleeve defect detection are remarkably improved.
Owner:GUODIAN SCI & TECH RES INST +2
Three-dimensional flow field load reconstruction method based on reinforcement learning of gated circulation unit
PendingCN119647242AAchieve integrated intelligent optimizationimprove unityGeometric CADBiological modelsComputational scienceAlgorithm
The invention relates to the technical field of hydroelectric generators, in particular to a three-dimensional flow field load reconstruction method based on reinforcement learning of a gated circulation unit, which comprises the following steps of: establishing a Python-based finite element secondary development platform, and realizing finite element simulation and obtaining a finite element simulation result; fusing a plurality of simulation characteristic indexes extracted from the finite element simulation result by using a multi-scale model fusion algorithm to obtain a finite element simulation result evaluation index, and optimizing simulation parameters; constructing an initial three-dimensional flow field load reconstruction model based on reinforcement learning of a gated circulation unit, and training the initial three-dimensional flow field load reconstruction model by using the optimized simulation parameters; and based on the trained three-dimensional flow field load reconstruction model, obtaining a reconstructed three-dimensional flow field load. By means of the reconstruction method, automatic simulation of finite element software and full-automatic optimization iteration of a parameter decision and reinforcement learning reconstruction network in the three-dimensional flow field load reconstruction process of the hydroelectric generating set component can be achieved.
Owner:DONGFANG ELECTRIC CHENGDU INTELLIGENT TECH CO LTD +1
Compressed air energy storage and water pumping energy storage combined energy storage power generation system
The invention relates to the technical field of water pumping energy storage, in particular to a compressed air energy storage and water pumping energy storage combined energy storage power generation system which comprises a high-point reservoir, a water pumping generator set and a low-point reservoir which are sequentially communicated from high to low. The high-point reservoir naturally stores water; water in the high-point reservoir can downwards flow into the hydroelectric generating set for power generation according to gravity; water flowing through the hydroelectric generating set for power generation can flow into the low-point reservoir according to gravity; the water pumping unit can pump water in the low-point reservoir into the high-point reservoir; the device further comprises a plurality of water-gas co-containing tanks. Water and air are contained in the water-air co-containing tank at the same time; the altitude of the water-gas co-containing tank is the same as that of the water pumping generator set; the water-gas co-containing tank is communicated with the high-point reservoir and the water pumping generator set simultaneously; water in the high-point reservoir can downwards flow into the water-gas co-containing tank according to gravity and compress air in the water-gas co-containing tank; and water in the water-gas co-containing tank can flow into the hydroelectric generating set under the extrusion of the compressed air to generate power.
Owner:QINGHAI UNIV OF SCI & TECH (UNDER PREPARATION) +2
Power distribution method, device and equipment of hydroelectric generating set, medium and product
The invention relates to the technical field of hydroelectric generation, and discloses a power distribution method, device and equipment of a hydroelectric generating set, a medium and a product, the power distribution method of the hydroelectric generating set comprises the following steps: determining a plurality of preliminary power distribution schemes according to the power grid demand power and the rated power of the hydroelectric generating set; determining a target damage index and a target efficiency index corresponding to each preliminary power distribution scheme according to the working condition data of the plurality of hydroelectric generating sets in each preliminary power distribution scheme; fusing the target damage index and the target efficiency index to obtain a health degree corresponding to each preliminary power distribution scheme; according to the health degree, a target power distribution scheme is selected from the multiple preliminary power distribution schemes, and power is distributed according to the target power distribution scheme, the health degree is obtained by fusing the target damage index and the target efficiency index, the target power distribution scheme is selected according to the health degree, and the accuracy of the target power distribution scheme is improved.
Owner:CHINA THREE GORGES CORPORATION
Hydroelectric generator output circuit, shower and electric energy conversion method
PendingCN119602444AImprove conversion efficiencyBatteries circuit arrangementsEmergency protection detectionOvervoltageAlternating current
The invention discloses a hydroelectric generator output circuit, a shower and an electric energy conversion method, and belongs to the technical field of bathroom accessories. The hydroelectric generator output circuit comprises a rectification module, an overvoltage protection module, a voltage stabilization module, a channel identification switching module, a high-voltage channel module, a low-voltage channel module, a charging management module and a load interaction module. The rectifier module is used for rectifying alternating current power output by the hydroelectric generator into direct current power; the overvoltage protection module is used for detecting the DC power supply so as to output the DC power supply in a preset voltage range. The voltage stabilization module is used for outputting reference voltage to the channel identification switching module; the channel identification switching module is used for respectively controlling the on-off states of the high-voltage channel module and the low-voltage channel module according to the reference voltage and the direct-current power supply output by the overvoltage protection module; the low-voltage channel module is used for supplying power to the charging management module and the load interaction module. According to the invention, the electric energy conversion efficiency can be effectively improved.
Owner:GUANGDONG LEHUA HOME FURNISHING CO LTD +2
Overhead digital display wash basin faucet
The utility model provides an overhead digital display wash basin faucet which comprises a main body, a water outlet support arm is arranged at the upper end of the main body, a water outlet nozzle is arranged at the tail end of the water outlet support arm, a concave containing cavity is formed in the upper end of the main body, and a water outlet channel is formed in the center of the bottom of the containing cavity. The water outlet support arm is formed by stamping and welding a thin-wall pipe or a metal plate and is welded and fixed with the main body, an opening is formed in the upper end face of the water outlet support arm, and a mounting cylinder extending towards the accommodating cavity is arranged in the opening; the hydroelectric generator and the temperature adjusting device are mounted in the mounting cylinder. The utility model has the advantages of simple structure, light weight, low production cost and attractive integral appearance.
Owner:WENZHOU YISHENG SANITARY WARE CO LTD
Method, apparatus and system for monitoring ultra-high frequency partial discharge of hydro-generator
The present disclosure provides a method, apparatus and system for monitoring ultra-high frequency partial discharge of a hydro-generator, and belongs to the technical field of hydro-generator partial discharge monitoring. The method includes: cleaning a partial discharge pulse sequence using a cleaning threshold to obtain a valid pulse sequence; performing redundant data filtering on each data unit divided from the valid pulse sequence to obtain a first target pulse sequence for short-period partial discharge monitoring; determining sub-sequences that are partial discharge events from the valid pulse sequence, forming a second target pulse sequence after associating an amplitude statistical feature of the sub-sequences, and storing the second target pulse sequence. The aforementioned method combines data cleaning, redundant data filtering, and partial discharge event identification, which enhances the real-time performance of partial discharge monitoring and records the long-period partial discharge change trend. The corresponding system adopts a multi-buffer zone and multi-processor architecture, thus further improving the real-time performance of partial discharge monitoring.
Owner:GUODIAN SCI & TECH RES INST
Green and low-carbon constructed wetland heat preservation system capable of realizing intelligent control
PendingCN120208427AWater treatment parameter controlBiological treatment apparatusConstructed wetlandHeat conservation
The invention discloses a green and low-carbon constructed wetland thermal insulation system capable of realizing intelligent control. The system comprises a modular wetland unit, a hydroelectric generation module, a thermal insulation heating module, an intelligent control module and an energy storage and standby power supply module, the modularized wetland unit comprises a modularized shell as well as a plant covering layer, a water inlet layer, a wetland bed layer and a water outlet layer which are positioned in the shell and are sequentially arranged from top to bottom; the hydroelectric generation module is mounted on one side of the modularized wetland unit and comprises a water power module shell and a turbine pipeline type hydroelectric generator; electric energy output by the turbine pipeline type hydroelectric generator is supplied to the heat preservation heating module or stored in the energy storage and standby power supply module for standby application; the heat preservation heating module comprises a heat conduction layer arranged at the bottom of the modular shell and located below the water outlet layer, and an electric heating plate located below the heat conduction layer. The intelligent control module is used for analyzing the running state of the wetland in real time and dynamically optimizing the power generation and heating modes. The energy consumption can be reduced, and efficient and stable operation can be achieved.
Owner:POWERCHINA HUADONG ENG CORP LTD
Axial-flow type constant-rotating-speed power output device for river channel and hydroelectric generating set
The invention discloses an axial-flow type constant-rotating-speed power output device for a river channel and a hydroelectric generating set, and belongs to the technical field of hydroelectric generation. An axial-flow type constant-rotating-speed power output device for a river channel comprises a constant-speed adjusting assembly and an axial-flow driving assembly which are connected with each other. And a first output shaft of the axial flow driving assembly is connected with the constant-speed adjusting assembly. And the end part of a second output shaft of the constant-speed adjusting assembly is arranged outside the speed adjusting box body in a penetrating manner and is connected with a third connecting flange. A hydroelectric generating set comprises a generator, and the power input end of the generator is connected with a third connecting flange. The self-adaptive constant-speed power output device can be self-adaptive to river water flow changes to achieve constant-speed power output, meanwhile, the problems of impurity blockage and mechanical loss are solved, and finally stable and efficient operation of a generator set is guaranteed.
Owner:SHANDONG LIANHUI STEEL STRUCTURE CO LTD
Float-type hydraulic power generation device
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
Owner:NUMEROUS FORMS CO LTD +1
Water delivery door positioning structure for water conservancy ship lock
The utility model relates to the technical field of water conservancy ship locks, and discloses a water delivery door positioning structure for a water conservancy ship lock, which comprises a water delivery door body and a remote controller, and a drainage mechanism is arranged in the water delivery door body. According to the water delivery door positioning structure for the water conservancy ship lock, by arranging the drainage mechanism, when water needs to be drained to raise the ship water level, information is sent to the controller through a remote controller, the controller enables an electric hydraulic telescopic rod to contract, a water blocking plate ascends along a sliding groove, water flow on the side with the high water level enters a filter screen, and impurities are filtered by the filter screen; the anti-collision rod prevents heavy objects from smashing the filter screen, water flow enters the straight pipe from the bent pipe and passes through the two hydroelectric generators, the two hydroelectric generators generate electric power and then transmit the electric power to the outside through wires to store the electric power, and after the water level rises, the water blocking plate moves downwards to be clamped in the clamping groove through the electric hydraulic telescopic rod. And environment-friendly power generation is achieved by facilitating water resource power generation.
Owner:SHAOGUAN CITY ZHONGGANG MASCH & EQUIP CO LTD
PID (Proportion Integration Differentiation) parameter setting method for inhibiting conflict between primary frequency modulation and secondary frequency modulation of hydroelectric generating set
ActiveCN119602309ASolve Oscillation ProblemsSingle network parallel feeding arrangementsHydro energy generationFrequency modulationSquare error
The invention discloses a PID parameter setting method for suppressing conflict between primary frequency modulation and secondary frequency modulation of a hydroelectric generating set, and belongs to the technical field of hydroelectric generating set adjustment. Comprising the following steps: S1, calculating an initial value of a PID (Proportion Integration Differentiation) parameter according to a water diversion system water flow inertia time constant and a hydroelectric generating set mechanical inertia time constant; s2, taking the PID parameter initial value of the speed regulator as a PID parameter value, solving the root of the characteristic equation in the S1, and calculating a unit power dynamic analytical expression during frequency unit step disturbance according to a Fisher method of a quartic equation; s3, calculating an analytic expression of the hydroelectric generating set power square error integral quantity based on the unit power dynamic analytic expression; and S4, calculating a speed regulator PID parameter formula for suppressing the conflict between the primary frequency modulation and the secondary frequency modulation of the hydroelectric generating set according to the analytic expression of the unit power square error integral quantity and the initial value of the speed regulator PID parameter. The problem that the dynamic process of primary frequency modulation and the dynamic process of secondary frequency modulation conflict is solved, and the adjusting capacity of the hydroelectric generating set can be brought into full play.
Owner:GUIZHOU WUJIANG HYDROPOWER DEV
Water turbine blade structure with bionic inner and outer ridges
The invention relates to a bionic water turbine blade and a three-dimensional structure thereof, which are suitable for an efficient hydroelectric generating set. According to the blade, the hydrodynamic performance is optimized through the outer ridges and the inner ridges which are evenly distributed on the outer contour and the inner contour respectively, the five outer ridges refer to geometric arrangement of fish scales, the stability of a boundary layer is improved, and fluid separation is reduced; the three inner ridges imitate a wing middle shaft framework, and the fluid guiding efficiency is enhanced. The overall shape of the blade simulates the curved surface of a fin, and microstructure bionic optimization is carried out on the surface to reduce water flow resistance and enhance self-cleaning capacity. The blade is made of a high-strength corrosion-resistant alloy material, and a waterproof coating is added on the surface of the blade to adapt to a complex underwater environment. According to the bionic design, the energy capture efficiency, the structural strength and the environmental adaptability of the water turbine are remarkably improved. And by adjusting geometric parameters of the blade and the distribution density of the ridges, different hydroelectric generation working conditions are adapted, and the wide and practical application value is achieved.
Owner:SOUTHWEST JIAOTONG UNIV
Hollow waterway type digital display basin faucet
The utility model provides a hollow waterway type digital display wash basin faucet which comprises a main body, a water outlet support arm is arranged at the upper end of the main body, a water outlet nozzle is arranged at the tail end of the water outlet support arm, the main body is formed by cutting a thin-wall pipe, and the water outlet support arm is formed by stamping and welding a thin-wall pipe or a metal plate and is fixedly welded with the main body; the upper end of the main body is also provided with an isolation cylinder positioned in the water outlet support arm; the outer wall of the isolation cylinder and the inner cavity of the water outlet support arm form a water outlet cavity communicated with the water outlet nozzle; the water outlet pipe penetrates through the main body from bottom to top to reach the isolation cylinder, is fixedly welded with the inner wall of the isolation cylinder and is communicated with the water outlet cavity; the top of the isolation cylinder extends to the top of the water outlet support arm and is provided with an opening, and a display screen is arranged in the opening; a hydroelectric generator and a temperature measuring head connected with the hydroelectric generator are arranged below the main body, and a water outlet of the hydroelectric generator is connected with a water outlet pipe; the device further comprises a temperature adjusting device. The utility model has the advantages of simple structure, light weight, low production cost and attractive integral appearance.
Owner:WENZHOU YISHENG SANITARY WARE CO LTD
Water-drive gas-storage energy-storage power station transformed from abandoned mine
The invention discloses a water-drive gas-storage energy storage power station transformed from a waste mine, relates to the technical field of long-time large-scale energy storage power stations, and aims to construct the long-time large-scale energy storage power station by taking gas such as carbon dioxide as an energy storage medium and water as an energy conversion medium and by virtue of underground space resources of the existing mine. The underground space of the abandoned mine is divided into a reservoir, a water sump and a gas sump, and the gas sump is filled with high-pressure gas such as carbon dioxide and connected with the water sump through a communicating pipe; a water inlet pipe and a water return pipe are respectively communicated between the water sump and the reservoir, a hydroelectric generating set and a valve are arranged on the water inlet pipe, and a water pump is arranged on the water return pipe. The system is charged through the water pump, the power grid is discharged through the hydroelectric generating set, and the function of a long-time large-scale energy storage power station is achieved. Liquid carbon dioxide is adopted as an energy storage medium, and the national dual-carbon policy is met. The system is an extension of a pumped storage power station and air energy power generation, and the efficiency is better.
Owner:SHIJIAZHUANG FEIHU ENTERPRISE MANAGEMENT CONSULTING CO LTD
Oil tank cooling system of hydroelectric generator
PendingCN121140347ALighting and heating apparatusDomestic cooling apparatusPlate heat exchangerElectric machine
The invention solves the problem that when a filter in an oil tank cooling system is replaced, oil flowing needs to be suspended, and relates to the field of oil tank cooling, in particular to a hydroelectric generator oil tank cooling system which comprises a cooling oil tank motor installed on an oil tank tank and used for circularly feeding oil into a generator, and a plate heat exchanger is installed at the top of the oil tank tank. An oil return pipe connected with the generator is arranged above the plate heat exchanger, a filter used for filtering oil liquid in the stage that the oil liquid in the oil return pipe is conveyed into the plate heat exchanger is installed on the oil tank, the filter comprises a support plate installed on the oil tank, and a flow dividing box in butt joint with the oil return pipe is installed on the support plate. Two filtering assemblies are installed at the bottom of the flow dividing box, and a plugging assembly used for guiding backflow oil liquid to flow into one filtering assembly is installed in the flow dividing box. The two filter assemblies are alternately used, replacement and cleaning are facilitated, and meanwhile the system can work uninterruptedly.
Owner:安徽众鑫科技股份有限公司
Hydroelectric generator with anti-winding function
ActiveCN222513550Uachieve disassemblyDifficult to clean upHydro energy generationMachines/enginesMarine engineeringTurbine blade
The utility model relates to the technical field of hydroelectric generators, and discloses a hydroelectric generator with an anti-winding function, which comprises a generator rotor, a support column, an outer shell and a turbine blade, the top end of the turbine blade is connected with a rotating shaft, the outer part of the rotating shaft is connected with a connecting rod, and the outer part of the connecting rod is sleeved with an intercepting sleeve. According to the hydroelectric generator with the anti-winding function, the intercepting sleeve is arranged on the front side of the turbine, the effects of blocking and collecting filiform impurities such as aquatic plants can be achieved, the problem that the filiform impurities are wound on turbine blades and are not easy to clean is solved, a plurality of burrs are arranged outside the intercepting sleeve, the intercepting efficiency can be improved, and the practicability is high. And meanwhile, through cooperation of a connecting rod and an intercepting sleeve, the intercepting sleeve can be detached, so that convenience is provided for cleaning of the intercepting sleeve, and manual operation is facilitated.
Owner:XIAMEN SHUIJIN ENERGY TECHNOLOGY CO LTD
Multi-energy complementary energy system
ActiveCN223680752UBatteries circuit arrangementsLoad balancing in dc networkElectric capacityPhotovoltaic arrays
The utility model relates to a multi-energy complementary energy system, which comprises a multi-energy power generation part, a multi-energy complementary converter, an energy storage system and a power grid, the multi-energy power generation part comprises a wind driven generator, a photovoltaic array and a hydroelectric generator; the multi-energy complementary converter comprises two AC / DC rectifiers, a photovoltaic MPPT controller, a bidirectional DC / AC inverter and a DC bus, the two AC / DC rectifiers are electrically connected with the wind driven generator and the hydroelectric generator respectively, the photovoltaic MPPT controller is electrically connected with the photovoltaic array, the energy storage system comprises a bidirectional DC / DC module and a super capacitor, and the super capacitor is connected with the DC bus through the bidirectional DC / DC module; the power grid is connected with the direct current bus through the bidirectional DC / AC inverter; when the system is used for supplying power to the electric equipment, energy conservation and emission reduction can be realized, meanwhile, the power operation cost is greatly reduced, and great economic benefits are brought.
Owner:WUHAN FENGHUO FUHUA ELECTRIC CO LTD
Method and system for evaluating working state of hydroelectric generator
The invention discloses a hydroelectric generator working state evaluation method and system, and the method comprises the steps: obtaining and analyzing the operation monitoring parameter data of a hydroelectric generator, and determining key operation parameters which affect the safe operation of the hydroelectric generator; analyzing and evaluating the operation safety state of the hydroelectric generator based on the data corresponding to the key operation parameters to obtain an operation safety state evaluation value; obtaining performance index data of the hydroelectric generator, and analyzing and evaluating the performance index data to obtain a performance evaluation value; determining a working state evaluation value of the hydroelectric generator based on the operation safety state evaluation value and the performance evaluation value, and determining a working state grade according to the working state evaluation value; and judging whether the working state of the hydroelectric generator is normal or not according to the working state grade, and sending out an early warning prompt after judging that the working state is abnormal. Operation of the hydroelectric generator is guided by comprehensively evaluating the working state of the hydroelectric generator, the safety, reliability and efficiency of equipment can be improved, and continuous and stable operation of the equipment is ensured.
Owner:HUANENG HUALIANGTING HYDROPOWER CO LTD
Control method for performing primary frequency modulation in power dead zone range of hydroelectric generating set
ActiveCN119765500ASingle network parallel feeding arrangementsHydro energy generationFrequency modulationTime constant
The invention discloses a control method for performing primary frequency modulation in a power dead zone range of a hydroelectric generating set, and belongs to the technical field of hydroelectric generating set adjustment. Comprising the following steps: S1, calculating H1 and H2 of a water diversion system according to a water flow inertia time constant and a unit mechanical inertia time constant of the water diversion system; s2, calculating a unit power dynamic analytical expression during frequency unit step disturbance; s3, calculating a first-order differential link coefficient decomposed by a second-order correction link based on the unit power dynamic analytical expression; and S4, calculating the output quantity of the PID speed regulator in the current sampling period. According to the scheme, the oscillation link transfer function parameters in the dynamic process are calculated, the second-order system correction transfer function with the given frequency value is designed on the basis, it is guaranteed that the unit power does not oscillate when the unit frequency is given to change, the problem that the power exceeds a power dead zone in the dynamic process is prevented, and the power efficiency is improved. And meanwhile, an amplitude limiting link is arranged at the frequency deviation value so as to ensure that the power steady-state value exceeds the power dead zone range.
Owner:GUIZHOU WUJIANG HYDROPOWER DEV
Water meter power supply device based on hydraulic pressure difference
The invention relates to the technical field of water meters, in particular to a water meter power supply device based on hydraulic pressure difference, which comprises a high-pressure water supply pipeline, a normal-pressure water supply pipeline and an electric cabinet, a connecting pipe is fixedly connected between the high-pressure water supply pipeline and the normal-pressure water supply pipeline, and a hydroelectric generator and an electromagnetic valve are arranged on the connecting pipe; compared with the prior art, the water meter power supply device can depend on a water supply pipeline system where the remote water meter is located, water flow is generated through the water pressure difference between the high-pressure water supply pipeline and the normal-pressure water supply pipeline, stable and reliable electric power is provided under the action of the micro hydroelectric generator to drive a remote water meter reading system, and electric power supply is stable and reliable. Compared with the prior art that an electricity meter is installed by a power supply company, the limited area is small, the cost is low, the provided power is direct current 12V power, and compared with the mode that 220V alternating current is converted into direct current 24 / 12V power, the safety coefficient is higher, and the problem that part of meter reading stations have no power can be solved.
Owner:ANHUI GUANLONG INTELLIGENT MANUFACTURING TECHNOLOGY CO LTD
Electric speed regulation system and speed regulation control method for water wheel power generation and pumped storage unit
The invention relates to the technical field of hydroelectric generating sets, and discloses an electric speed regulation system and a speed regulation control method for a water wheel power generation and pumped storage unit. The electric speed regulation system comprises a power supply mechanism, a driving mechanism, a transmission mechanism, a stroke detection mechanism and a control mechanism. The transmission mechanism comprises a rotary motion body, a limiting body and a linear motion body, the driving mechanism is connected with one end of the rotary motion body, the linear motion body is slidably arranged in the limiting body, one end of the linear motion body is connected with the rotary motion body, the other end of the linear motion body is connected with a water turbine movable guide vane control ring, and the limiting body is used for limiting rotary motion of the linear motion body. The linear motion body linearly moves in the limiting body; the stroke detection mechanism is suitable for detecting the stroke of the linear motion body; the control mechanism is connected with the power supply mechanism, the driving mechanism and the stroke detection mechanism. The electric speed regulation system is driven by electric power, the unit can be controlled more quickly and more accurately, and the electric speed regulation system is simple in structure, few in fault point and low in maintenance cost.
Owner:CHINA THREE GORGES CORPORATION
Sustainable water utilization and disaster mitigation system
The present invention is a water collection and storage station system. The system comprises one or more water tanks embedded in terrain such as natural mountains for water containment, storage, and directed outflow without requiring energy-intensive pumping, while also producing electricity. A high-altitude catchment area collects water, which is filtered through zeolite beds before storage. The system includes multiple exits for water distribution, overflow management, and debris removal. Each exit is integrated with hydroelectric generators for electricity production. The system features a heliport for firefighting support, equipped with rapid-fill mechanisms for flexible water buckets, thermal cameras for fire detection, and water cannons for fire suppression. The multifunctional system provides sustainable solutions for water conservation, energy generation, and disaster management.
Owner:SMITH GREGORY KENT
Submersible hydroelectric generator apparatus and method of operating same
PendingCN119677948AEfficient dischargeavoid submersionMachines/enginesEngine componentsGenerators (Apparatus)Turbine
The invention relates to a submersible hydroelectric generator device (1) comprising a substantially upright body having an outer chamber (9) and an inner pressure chamber (7). The inner pressure chamber (9) has a pressurizable fluid supply therein, and the outer chamber (9) has a charge inlet (21) adjacent to the top of the upright body, a discharge outlet (11) adjacent to the bottom of the upright body, and a liquid passage having a turbine (25) and a flow regulator (27) mounted therein. An auxiliary pressurized fluid supply is provided to replenish the pressurizable fluid supply. A pressure regulator is provided that is operable to control delivery of the auxiliary pressurized fluid from the auxiliary supply to the inner pressure chamber to maintain the pressure of the pressurizable fluid supply at or above a predetermined pressure level during drainage of water from the apparatus. In this way, water will be discharged from the device in a rapid, repeatable manner.
Owner:STATIC HYDRO ENERGY S H E LTD
Hydroelectric generating set rotating speed fault monitoring system and method based on machine vision
The invention discloses a hydroelectric generating set rotating speed fault monitoring system and method based on machine vision, and relates to the technical field of fault monitoring. Analyzing water flow abnormity of the upstream set area based on the water flow data of the upstream set area; analyzing water flow abnormity of the water inlet setting area based on the water flow data of the water inlet setting area; based on the water wheel blade rotating speed abnormity, the upstream set area water flow abnormity and the water inlet set area water flow abnormity, water wheel blade rotating speed abnormity caused when the upstream set area water flow flows through the water turbine is estimated; performing early warning on the hydroelectric generating set with the rotating speed fault according to the comparison result; water wheel blade abnormity and water flow abnormity are combined to analyze the influence of water flow on the rotating speed, whether the rotating speed fault is caused when upstream water flow flows through the water turbine or not is judged according to the current water flow data and the rotating speed condition, and the accuracy and timeliness of fault judgment of the hydroelectric generating set are improved.
Owner:NANJING VOCATIONAL UNIV OF IND TECH
Large hydroelectric generating set sensor position positioning device and use method thereof
Owner:CHINA YANGTZE POWER +1
Double-in-and-out type shell for miniature hydroelectric generator
The utility model relates to the technical field of miniature hydroelectric generators, in particular to a double-in-and-out type shell for a miniature hydroelectric generator, which comprises a shell body and a sealing cap structure. At least six or more curved clamping grooves are formed in the top of the shell at equal intervals in the circumferential direction of the shell, the shapes of the at least six or more curved clamping grooves show a rotary effect in the unified orientation, annular protruding blocks are arranged at the top of the shell, and the annular protruding blocks are located between every two curved clamping grooves. The curved clamping grooves formed in the top of the outer shell at equal intervals in the circumferential direction and the curved clamping blocks on the sealing cap structure jointly form a double-in-and-out type water flow channel, water flow can enter the shell from the top and the side portion at the same time through the design, the water flow passing amount is increased, and the utilization rate of water flow energy is increased.
Owner:QUANZHOU SHANGHUA KITCHEN & BATHROOM TECH CO LTD
Auxiliary driving device for cooling tower fan
ActiveCN222635308Ulow water pressurelow daily operating costsHydro energy generationMachines/enginesCooling towerPower grid
The utility model discloses an auxiliary driving device for a cooling tower fan. The auxiliary driving device comprises a cooling tower water inlet pipe, a hydroelectric generator, an inverter and the cooling tower fan, the cooling tower water inlet pipe is connected with a spraying pipe and a bypass flow pipe, the bypass flow pipe is connected with a hydroelectric generator and is provided with a valve, the hydroelectric generator is electrically connected with an inverter, the inverter is electrically connected with a power grid, and a cooling tower fan is electrically connected with the power grid; the hydroelectric generator is further connected with a water outlet pipe, the water outlet pipe is connected with an upward spraying pipe, the upward spraying pipe is arranged below the spraying pipe, spraying heads are correspondingly arranged on the spraying pipe and the upward spraying pipe, and a packing layer is further arranged in the cooling tower below the upward spraying pipe; part of circulating water is used for backwater power generation, the generated power can be used for driving the cooling tower fan, the water inlet pressure of the cooling tower is reduced, meanwhile, the daily operation cost of the cooling tower fan is reduced, in addition, due to the application of the upward spraying pipe, the downward spraying impact force of the spraying pipe can be further reduced through opposite flushing, and the packing layer is protected.
Owner:HEBEI FUYUE CHEM TECH CO LTD
Self-power-generating digital pressure reducing valve and pressure regulation method
PCT designated stageWO2026081310A1Operating means/releasing devices for valvesEqualizing valvesControl roomElectric devices
Disclosed is a self-power-generating digital pressure reducing valve, comprising a main valve (1), and further comprising an electric pressure reducing pilot valve (2). A water inlet port of the electric pressure reducing pilot valve (2) is connected to a water inlet end of the main valve (1) by means of a first pipe (3); a water outlet end of the main valve (1) is connected to a water outlet port of the electric pressure reducing pilot valve (2) by means of a second pipe (4); the water outlet port of the electric pressure reducing pilot valve (2) is connected to an upper diaphragm cavity of a main valve control chamber by means of a third pipe (5); a lower diaphragm cavity is connected to the outside by means of a fourth pipe (15); a fifth pipe (6) is further connected between the water inlet end and the water outlet end of the main valve (1); and a hydroelectric generator (7) is provided on the fifth pipe (6). The digital pressure reducing valve further comprises pressure detection devices (8) arranged before and after the main valve, and a controller for receiving detection signals of the pressure detection devices (8) so as to control the opening and closing of the electric pressure reducing pilot valve (2); and the hydroelectric generator (7) is connected to the pressure detection devices (8) and the electric pressure reducing pilot valve (2). The digital pressure reducing valve can achieve self-power generation to meet power utilization requirements of electric devices, and can be remotely regulated and controlled.
Owner:ZHUZHOU SOUTHERN VALVE +1
A control method for primary frequency modulation in a power dead zone range of a hydroelectric generating set
ActiveCN119765500BHydro energy generationAc network circuit arrangementsFrequency modulationTime constant
The application discloses a control method for primary frequency modulation in a power dead zone range of a hydroelectric generating set, and belongs to the technical field of hydroelectric generating set regulation. The method comprises the following steps: S1, calculating H1 and H2 of a water diversion system according to the water flow inertia time constant of the water diversion system and the mechanical inertia time constant of the generating set; S2, calculating a dynamic analytical expression of the generating set power when a frequency unit step disturbance occurs; S3, calculating a first-order differential link coefficient decomposed by a second-order correction link based on the dynamic analytical expression of the generating set power; and S4, calculating the output of a PID speed regulator in a current sampling period. The scheme calculates the oscillation link transfer function parameters in a dynamic process, and a second-order system correction transfer function of a frequency given value is designed on the basis, so that the oscillation phenomenon of the generating set power does not occur when the frequency given value of the generating set changes, the problem that the power exceeds the power dead zone in the dynamic process is prevented, and a limiting link is arranged at the frequency deviation value to ensure that the power steady-state value exceeds the power dead zone range.
Owner:GUIZHOU WUJIANG HYDROPOWER DEV