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405 results about "Water energy" patented technology

Water energy is energy derived from the power of water, most often its motion. Energy sources using water have been around for thousands of years in the form of water clocks and waterwheels. A more recent innovation has been hydroelectricity, or the electricity produced by the flow of water over dams.

State detection method for water energy storage unit

The invention relates to the technical field of pumped storage, and discloses a state detection method for a water energy storage unit, which comprises the following steps: S1, deploying vibration, temperature, electrical and pressure sensors on the water energy storage unit, collecting multi-dimensional operation data, and carrying out noise reduction, standardization and time sequence alignment; s2, multi-dimensional features of the data are extracted through tensor decomposition, local space information is acquired by using a convolutional neural network, and a time sequence relation is modeled in combination with a Transform model; and S3, constructing a sensor topological structure through the graph convolutional network. The multi-source data fusion technology is adopted, data of vibration, temperature, electrical and pressure sensors are processed in a unified mode, time sequence prediction and an intelligent fault detection algorithm are combined, comprehensive health monitoring of the water energy storage unit is achieved, the detection precision is improved, meanwhile, potential faults can be found in time, and compared with data monitoring of a single sensor in a traditional method, the method has the advantage that the monitoring accuracy is improved. And the problem of inaccurate identification caused by large and complex data volume is obviously solved.
Owner:BEIJING HENGDING YIHE ENERGY SAVING TECH CO LTD

Island energy system optimization scheduling method considering electricity-to-ammonia waste heat power generation

The invention provides an island energy system optimization scheduling method considering ammonia-to-electricity waste heat power generation, and the method employs an independent island integrated energy system containing an ammonia-to-electricity system to execute a weekly-day-intra-day multi-stage operation optimization scheduling strategy, and the independent island integrated energy system is a system considering the ammonia supply demand. Wind energy and solar energy are used as energy input, energy is supplied to seawater desalination equipment and an electricity-to-ammonia system, and the electric load requirements of island residents are met; meanwhile, seawater desalination equipment is used as a power demand response resource to increase the water-energy coupling relationship of the system model, and cross-time storage and utilization of fresh water resources are realized through a reservoir, so that an ammonia-hydrogen power ship which is used for meeting daily travel demands of island residents is used as an ammonia load; an electricity-to-ammonia system and an ammonia storage tank are adopted to realize effective consumption of island wind and light resources; according to the invention, the long-period energy supply reliability of the island can be improved, and the problem of uncertainty of wind energy and light energy resources of the island can be effectively solved.
Owner:FUZHOU UNIV

Self-generating ultrasonic remote water meter and water supply management system

The invention relates to the technical field of water supply management, in particular to a self-generating ultrasonic remote water meter and a water supply management system, and aims to enhance automatic water supply adjustment and water energy optimization adjustment of the self-generating ultrasonic remote water meter water supply management system through an intelligent analysis process of user water consumption information. Comprising the steps that a remote transmission module sends a real-time user water volume data signal to a remote water supply control center through a wireless communication technology; the water supply module performs multi-dimensional data analysis according to the real-time user water volume data signal and judges the user water consumption change condition, and the remote water supply control center starts an automatic water supply strategy; the monitoring module obtains user water consumption conditions in a preset time period under the control of the automatic water supply strategy for monitoring and analysis, and user water consumption level information in the preset time period is obtained; and the judgment module judges whether water consumption of the user is abnormal or not according to the water consumption grade information of the user, generates a second early warning signal and pauses water supply treatment.
Owner:JINING WUKEXING METER

Hydropower station income risk measurement method based on hydroenergy value

The invention discloses a hydropower station income risk measurement method based on hydraulic energy value, which comprises the following steps: S1, constructing a hydraulic energy value dynamic evaluation model, calculating the hydraulic energy available amount under different space-time scenes by combining a distributed hydrological model, converting the hydraulic energy available amount into an economic value, and obtaining a dynamic hydraulic energy value; s2, establishing a multi-risk factor coupling network, and calculating a synergistic effect weight between risk factors; s3, constructing an income risk dynamic prediction model, updating and predicting a power generation income probability distribution curve in a future preset time period in real time, and identifying a key risk source; s4, constructing a risk-income tradeoff decision matrix through a prediction result and a key risk source output by the income risk dynamic prediction model, and generating income optimization schemes under different risk coping strategies; and S5, displaying the dynamic water energy value, the income risk prediction result and the income optimization scheme by using a visual interface. Accurate evaluation of the dynamic water energy value and real-time prediction of the power generation income risk are achieved.
Owner:GUANGDONG UNIV OF PETROCHEMICAL TECH +1

Low-water-head water turbine with flow guide wing bionic blades

The invention discloses a low-water-head water turbine with a flow guide wing bionic blade, which is provided with a variable pitch system for adjusting an included angle between a runner blade and an incoming flow direction, and a deflection control system for adjusting an included angle between a guide vane arranged on a bulb body and the incoming flow direction, the water flow impact acting force on the blades can be changed through the water flow impact acting force, the water flow impact acting force on the blades can be changed through the water flow impact acting force, and the water flow impact acting force on the blades can be changed through the water flow impact acting force. In addition, the blade of the runner of the hydraulic turbine set is the blade with the wave-shaped front edge, and a section protruding outwards is arranged in a pipeline for containing the bulb body and the runner, so that the water energy utilization rate of the hydraulic turbine set is further increased. The blade adopts a sine curve-shaped waveform front edge, and the structure simulates a convex shape on a fin-shaped limb of an underwater organism, so that the resistance in water is reduced, and the water energy utilization rate of a water turbine set is increased.
Owner:HOHAI UNIV

Flushing system and closestool

The flushing system comprises a water tank, a first water pump, a water inlet device used for supplementing water to the water tank and a spraying nozzle, the water inlet end of the first water pump is communicated with the water tank, and the water inlet device is connected with a water supplementing pipe; the spraying nozzle is provided with a first spraying channel and a second spraying channel which are mutually independent, the first spraying channel is supplied with water by the first water pump, and the water inlet end of the second spraying channel is communicated with a water supplementing pipe of the water inlet device, so that when water enters the water inlet device, part of water can flow into the second spraying channel along the water supplementing pipe. High-pressure water generated by the first water pump during normal flushing can be prevented from flowing backwards along the water replenishing pipe, and the water replenishing mode is simple in structure, high in reliability and low in cost.
Owner:XIAMEN JIUMU R & D CO LTD

Control method for intelligent circulating water energy-saving optimization system of thermal power plant

The invention discloses a thermal power plant intelligent circulating water energy-saving optimization system control method, relates to the technical field of thermal power plant automatic control, and aims to solve the technical problems of low control precision and large energy consumption of a traditional thermal power plant cold end system and realize optimization control by constructing an intelligent control system based on a Transform deep learning architecture. An intelligent weather data acquisition network is established, meteorological data, satellite meteorological data and a local microclimate sensor network are integrated, and high-precision space-time meteorological information is obtained; according to the method, a Transform encoder-decoder architecture is adopted, multi-source data is converted into a standardized token for representation, and complex association analysis is realized through a multi-head self-attention mechanism; a multi-objective collaborative optimization framework with an objective function as a core is constructed, a steam turbine-condenser-cooling tower-circulating water pump control closed loop is established, and seasonal adaptive control and robust optimization are achieved; providing decision transparent analysis, and explaining a control decision process through attention weight distribution.
Owner:YUNNAN FLUID PLANNING & RES INST CO LTD

Market-oriented hydropower station income risk assessment method

The invention discloses a market-oriented hydropower station income risk assessment method, which comprises the following steps: S1, acquiring real-time hydrological data of a hydropower station drainage basin, constructing a hydroenergy income dynamic assessment model, establishing a dynamic mapping relationship between a hydroenergy value and a power generation income, and calculating the hydroenergy values in the current and future time periods; s2, identifying multi-dimensional risk factors influencing the income of the hydropower station; s3, determining the probability distribution of each risk factor, establishing a multi-source risk factor coupling model through a Copula function, and quantifying the comprehensive influence of the interaction between the risk factors on the income of the hydropower station; s4, performing random simulation on the power generation income of the hydropower station in a period of time in the future to generate a large number of income simulation samples; and S5, according to the income simulation sample, calculating a risk assessment index of the hydropower station income, and completing hydropower station income risk assessment of the hydropower station value. Dynamic quantitative evaluation, multi-dimensional risk interaction analysis and full-scene risk prediction of the income of the hydropower station are realized, and the timeliness and accuracy of income evaluation are improved.
Owner:GUANGDONG UNIV OF PETROCHEMICAL TECH +1

Load optimization and emergency support control method, system and device for energy storage control system

The invention discloses an energy storage control system load optimization and emergency support control method, system and device. The method comprises the following steps: firstly, constructing a multi-level water head sensor network to monitor water head data in real time, and dynamically determining power generation duration based on a hydraulic model; thirdly, combining the power generation duration capacity and the unit efficiency characteristic curve, and using an optimization algorithm to obtain an optimal load distribution scheme; then, a start control strategy is constructed, unit start-stop and load regulation unified management is achieved through an automatic control algorithm of a computer monitoring platform, and the system operation state is obtained; according to the state, a support scheme is determined through a capacity calculation model, and different requirements of a power grid can be flexibly met; when the power grid is abnormal, a corresponding scheme is called and executed in time, normal operation of the power grid can be recovered quickly, safety and stability are guaranteed, and influences on users are reduced. The method establishes a perfect emergency response mechanism, improves the emergency processing capability of the power system, and effectively improves the water energy utilization efficiency and the power grid stability.
Owner:BEIJING IWHR TECH +1

Electric water heater

The utility model discloses an electric water heater, which comprises a container, a water inlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe and a water outlet pipe, the water inlet pipe is mounted on the joint; the water inlet pipe comprises an outer pipe and an inner pipe, the outer pipe is provided with an outer pipe water outlet, the outer pipe water outlet and at least part of the outer pipe are located in the container, the part, located below the outer pipe water outlet, of the outer pipe is connected with the connector, and the inner pipe extends into the container through the connector through hole. The inner pipe is further provided with an inner pipe water outlet located above the inner pipe water inlet and the outer pipe water outlet, the inner pipe is detachably connected with the connector, and after the inner pipe is detached from the connector, water in the container can flow out through the outer pipe water outlet and the connector through hole. The water inlet assembly provided by the embodiment of the utility model not only has an anti-electricity function, but also is convenient for discharging water in the container through the drain pipe.
Owner:A O SMITH (CHINA) WATER HEATER CO LTD

Cascade hydropower station optimization scheduling model construction and calculation method

The invention discloses a cascade hydropower station optimal scheduling model construction and calculation method, and relates to the technical field of cascade hydropower station optimal scheduling model construction, and the method comprises the following steps: setting an initial scheduling line, and setting an initial scheduling line satisfying a constraint condition for each hydropower station according to analysis and judgment; through the dynamic optimization scheduling method, the cascade hydropower stations can optimize water resource distribution according to hydrological changes, power grid requirements and reservoir regulation capacity, the water energy utilization rate is increased, and abandoned water is reduced. Under the support of power grid load prediction, the output of a hydropower station is adjusted, the peak regulation capability is enhanced, and the stability of a power system is improved. A successive approximation dynamic programming algorithm is adopted, the calculation complexity of multi-reservoir joint optimization is reduced, the scheduling efficiency is improved, global scheduling is optimized in combination with an artificial intelligence algorithm, and the economical efficiency and reliability of cascade hydropower station operation are ensured.
Owner:HUANENG YARLUNG TSANGPO RIVER HYDROPOWER DEV INVESTMENT CO LTD

Water pumping compressed gas phase change heat and energy storage system

The invention relates to a water pumping compressed gas phase change heat and energy storage system, and belongs to the technical field of energy storage power generation. The water pumping and gas compressing phase change heat and energy storage system comprises a water-gas co-containing tank, a water pumping generator set, a water storage tank, a phase change energy storage power generation subsystem and a current stabilizer, wherein the water pumping generator set is communicated with the water-gas co-containing tank; the water storage tank is communicated with the pumping generator set; the phase change energy storage power generation subsystem is communicated with the water storage tank and the water-gas co-containing tank, and water in the water storage tank enters the phase change energy storage power generation subsystem; the current stabilizer is installed on the phase change energy storage power generation subsystem. Therefore, according to the water pumping and gas compressing phase change heat storage and energy storage system, energy storage and power generation are achieved in one or more modes of water pumping energy storage and power generation, gas compressing energy storage and power generation and phase change energy storage and power generation, and a current stabilizer is arranged in the phase change energy storage and power generation subsystem to stabilize steam flow, so that the phase change energy storage and power generation subsystem can better store energy and generate power; the power generation effect is more stable, and the power generation efficiency is improved.
Owner:QINGHAI UNIV OF SCI & TECH (UNDER PREPARATION) +1

Electric water heater

The utility model relates to the technical field of electric water heaters, and particularly discloses an electric water heater which comprises a container, a water inlet pipe, a water outlet pipe, a water outlet pipe and a water outlet pipe. The container comprises an upper container and a lower container, and the upper container is located above the lower container which is communicated with the upper container through a communication part; the water inlet pipe is used for supplying water to the container; the heating piece is used for heating water in the container; the drainage pipe is located in the container and connected with the container and / or the communicating part and / or the water inlet pipe, the drainage pipe is provided with a water outlet part and a water inlet part arranged on the peripheral wall of the drainage pipe, and the water outlet part is located above the water inlet part; water in the communicating part and / or water in the lower container can enter the drainage pipe through the water inlet part and flow to the upper container from the water outlet part. According to the scheme, the heat exchange efficiency between the upper container and the lower container of the electric water heater can be improved, and the production cost is effectively reduced.
Owner:A O SMITH (CHINA) WATER HEATER CO LTD

System and method for intensifying corrosion of minerals by hot flue gas through coal seam zoning electroosmosis targeted water displacement

The invention discloses a system and a method for strengthening corrosion of minerals by hot flue gas through coal seam zoning electroosmosis targeted water flooding, firstly, the hot flue gas is injected into a coal reservoir, CO2 of the hot flue gas displaces adsorbed gas in pores of the coal reservoir through a competitive adsorption effect, meanwhile, part of the CO2 is dissolved in water vapor of the hot flue gas and raw water in a coal body to form acidic water, and the acidic water is dissolved in water vapor of the hot flue gas; the acid water can corrode minerals in micropores of the coal reservoir to increase permeability of the coal body; when a water locking effect occurs in micropores of the coal reservoir, a high-voltage electric field is formed between every two adjacent drill holes, and the acidic water generates a targeted electroosmosis water driving effect under the action of the high-voltage electric field, so that the acidic water continuously moves in fractures of the coal reservoir in the direction of the electric field, and the water locking effect is broken; meanwhile, the acid water can promote multistage ionization of an acid medium in the solution to generate a large number of hydrogen ions under the action of electrified positive and negative electrodes, the mineral dissolution rate is increased, finally, the range and effect of hot flue gas on dissolution minerals in the coal reservoir are enlarged, and finally, the overall gas extraction efficiency of the coal reservoir is effectively improved.
Owner:CHINA UNIV OF MINING & TECH

Nitrogen constant-temperature and constant-pressure pressurized water energy storage system and pressure fixing method

The invention relates to the technical field of compressed air heat storage, in particular to a nitrogen constant-temperature and constant-pressure pressurized water energy storage system and a constant-pressure method. The system comprises a heat storage module, a constant-temperature and constant-pressure module and a pressure relief module. The heat storage module comprises a cold water tank, a heat exchange unit and a hot water tank which are sequentially connected, the cold water tank is connected with a normal-pressure water tank, and the hot water tank is connected with a nitrogen source. The constant-temperature constant-pressure module comprises a first temperature measuring instrument and a first nitrogen heater which are arranged on the cold water tank, and a second temperature measuring instrument and a second nitrogen heater which are arranged on the hot water tank. The pressure relief module comprises a first pressure measuring instrument arranged on the cold water tank, a second pressure measuring instrument arranged on the hot water tank and a water drainage loop connected with the cold water tank and the normal-pressure water tank. The cold water tank and the hot water tank are subjected to temperature monitoring and heating, so that the temperature of nitrogen in the tanks is kept stable, the pressure fluctuation of the system is reduced, the reliability of the system is improved, and the cost of the pressurized water storage tank is effectively reduced.
Owner:NORTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GRP +2

Deep learning-based dispatching behavior extraction method for water-wind-light complementary system

The invention discloses a deep learning-based scheduling behavior extraction method for a water-wind-light complementary system, and belongs to the technical field of complementary scheduling. Comprising the following steps: acquiring basic data of a water-wind-light complementary system, and screening out at least two kinds of data from the basic data to respectively serve as influence factors and decision variables of a scheduling behavior of the complementary system; the influence factors are input into a trained water-energy-electricity constraint coupled deep learning model, a target decision variable value is obtained, an extraction strategy of the scheduling behavior of the water-wind-light complementary system is established, and the extraction strategy of the scheduling behavior of the water-wind-light complementary system is a mapping relation between the influence factors and decision variables; wherein the deep learning model coupled with the water-energy-electricity constraint is a CNN-LSTM-FI model, and the extraction strategy of the scheduling behavior of the water-wind-light complementary system comprises a single-library mapping strategy and a multi-library mapping strategy. According to the method, the accuracy and efficiency of dispatching behavior extraction of the water-wind-light complementary system are improved.
Owner:ZHENGZHOU UNIV

Water conservancy project scheduling system based on artificial intelligence

The invention discloses a water conservancy project scheduling system based on artificial intelligence. The system comprises a water conservancy data monitoring module, a water level prediction module, a water conservancy scheduling module and a water conservancy power generation module. The water conservancy data monitoring module is used for monitoring and acquiring water conservancy data in real time and acquiring meteorological data in real time; the water level prediction module is used for acquiring historical water conservancy data and historical meteorological data, establishing a BP neural network model and acquiring predicted water level data; the water conservancy scheduling module is used for obtaining a first water conservancy scheduling strategy by using a particle swarm algorithm according to the predicted water level data, establishing a fluid simulation model according to the water conservancy scheduling strategy, and obtaining a second water conservancy scheduling strategy; and the hydroelectric power generation module is used for determining a hydroelectric power generation strategy by utilizing edge calculation, realizing intelligent hydraulic engineering scheduling, ensuring the feasibility of the hydraulic engineering scheduling strategy and the reliability of actual scheduling, supplying power to power supply users according to the hydroelectric power generation strategy, and being beneficial to fully utilizing water energy to generate power and improving the energy utilization rate.
Owner:MANSTRO SOFTWARE TECH CO LTD

Pumped storage and compressed air energy storage coupled underground gas storage system with air cushion type surge shaft and operation method of pumped storage and compressed air energy storage coupled underground gas storage system

The invention provides a system of a pumped storage coupled compressed air energy storage underground gas storage with an air cushion type surge shaft and an operation method. The system comprises a compressed air energy storage system and a pumped storage system. The interior of the water-gas co-containing bin is divided into an upper-layer gas storage chamber and a lower-layer water storage chamber through a flexible material. The air inlet end of the compression system is communicated with the second air path; the air outlet end of the compression system is connected to the air inlet of the upper-layer air storage chamber through a first air path; a first air valve is mounted on the first air path; a gas outlet of the upper-layer gas storage chamber is connected to the expansion unit through a third gas path, and a second gas valve is mounted on the third gas path; and a detection sensor is mounted in the water-gas co-containing bin. The stability and economical efficiency of the compressed air energy storage are improved, the compressed air utilization rate is increased, the combined operation mode of compressed air energy storage and pumped storage is simplified, the combined dispatching mode of novel energy storage is optimized, and then the safety and reliability of pumped storage are improved.
Owner:POWERCHINA BEIJING ENG CORP

Siphon power generation device and roof water energy gradient collection system comprising same

The invention discloses a siphon power generation device which comprises a water storage pipe, a siphon located in the water storage pipe and a TENG power generation device located at the end of the siphon, and the TENG power generation device is located below the water storage pipe. One end of the siphon penetrates through the bottom of the water storage pipe to be communicated with the TENG power generation device, the other end of the siphon is located in the water storage tank, and the siphon sucks rainwater in the water storage pipe and conveys the rainwater to the TENG power generation device. The siphon power generation device is arranged in a rainwater pipe, so that the kinetic energy of rainwater on the roof can be effectively collected.
Owner:ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE

Electricity-water-hydrogen-heat coupled multi-energy ship optimal scheduling method

The invention discloses an electricity-water-hydrogen-heat coupled multi-energy ship optimal scheduling method. The method comprises the following steps: 1) establishing an objective function of an electricity-water-hydrogen-heat coupled multi-energy ship optimal scheduling model; 2) establishing ship navigation scheduling constraints of the electricity-water-hydrogen-thermal coupling multi-energy ship optimization scheduling model; 3) establishing ship equipment scheduling constraints of the electricity-water-hydrogen-heat coupling multi-energy ship optimal scheduling model, wherein the ship equipment scheduling constraints comprise ship photovoltaic, diesel generator, fuel cell, electric energy storage, water energy storage, hydrogen energy storage and heat energy storage scheduling constraints; 4) establishing an electricity-water-hydrogen-heat energy balance constraint of the electricity-water-hydrogen-heat coupling multi-energy ship optimization scheduling model; and 5) solving the power-water-hydrogen-heat coupled multi-energy ship optimal scheduling model to obtain a multi-energy ship scheduling scheme.
Owner:HOHAI UNIV

Water abandoning risk quantitative evaluation optimization scheduling method

The invention discloses a water discarding risk quantitative evaluation optimization scheduling method, which comprises the following steps: step 1, when a hydropower station generates power and the hydropower station generates water storage in a flood season, taking the discharge flow as the water discarding flow for treatment, and taking the water discarding flow at the maximum current utilization flow as the minimum water discarding flow; 2, when the water level of the reservoir reaches the upper limit, water and electricity reduce the output power generation amount to cause abandoned water, the abandoned water further reduces the actual power grid electric quantity to cause abandoned electricity, the minimum abandoned water flow exceeds the maximum current flow, different abandoned electricity is generated when the minimum abandoned water flow is lower than the maximum current flow, and the minimum abandoned water flow does not exceed the maximum current flow. And the abandoned water amount accumulated along with the time is converted into the energy of acting output as the abandoned electric quantity. According to the water abandoning risk quantitative evaluation optimization scheduling method, the water abandoning strategy with the fractal characteristic is provided, the water abandoning frequency is reduced, the utilization rate of water energy and the maximization of the generating capacity are facilitated, and fluctuation of the water abandoning flow in the daily scale in reservoir scheduling has randomness.
Owner:KUNMING UNIV OF SCI & TECH

Central air supply device for printing workshop

The utility model discloses a central air supply device for a printing workshop, which comprises a water ring vacuum pump, an air inlet end of the water ring vacuum pump is connected with an air storage tank through an air pipe I; the circulating water tank is arranged on one side of the water ring vacuum pump, a water inlet pipe is arranged on one side of the circulating water tank, a valve is arranged in the middle of the water inlet pipe, a water level limiting assembly is arranged in the circulating water tank, and the water level limiting assembly comprises a liftable floating ball and a plugging ball used for plugging the water inlet pipe. The water level limiting assembly has the advantages that the water level limiting assembly can automatically adjust the water level under the action of the floating ball and the connecting rod, and damage to equipment caused by too low or too high water level is avoided; the overflow box and the floating block system provide multiple protection mechanisms, it is ensured that when the water level is not adjusted in time, water can flow into the overflow box through an overflow pipe, the buoyancy effect of a floating block can push a driving rod to close a water inlet pipe, overflow is prevented, and the stability and safety of equipment are further ensured.
Owner:FOSHAN KAISHENG PRINTING CO LTD

Water lifting device (megawatt water energy cycle power station T6)

1. The name of the design product: water lifting equipment (T6 megawatt water energy cycle power station). 2. The use of the design product: water hammer pump for water lifting. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.
Owner:黄战军 +1

Still water energy and mechanical wheel combined power generation system

The invention relates to the technical field of clean energy power generation, in particular to a still water and mechanical wheel combined power generation system technology which is characterized in that a still water and mechanical wheel combined power generation system is composed of a water supply device, a frequency conversion speed control device, a mechanical wheel, a water energy tank, a water energy tank structure frame, an electromechanical device and a structure platform; according to the water supply device, a centrifugal pump is driven by a water pump motor, and still water in a water storage bin is lifted to a water energy tank to start a mechanical wheel. According to the speed control electric device, a high-speed speed control motor drives a multifunctional gearbox, the speed is converted to be smaller than 30 revolutions per minute, and then the mechanical wheel is controlled to rotate. The mechanical wheel comprises a water wheel shaft, a water wheel steel ring body, a water wheel steel ring body supporting frame and water wheel blades. The water wheel blades form a water containing included angle smaller than 75 degrees on the water wheel steel ring body. The water energy tank is an arc-shaped vertical water energy tank, the upper top end of the water energy tank is funnel-shaped, and the main body of the water energy tank is an arc-shaped tank; and the arc-shaped groove is matched with the joint section of the water wheel steel ring body in an arc shape.
Owner:王本淼 +2

A compressed water energy storage device with stable pressure and its control method

The present invention discloses a compressed water energy storage device for stabilizing pressure and its control method. The device includes a waste heat utilization heat exchanger, a steam compressor, a heat exchanger, an expansion turbine, a heat storage tank, a high-pressure water storage tank, a hydraulic turbine, a low-pressure water storage tank, and a booster pump. The method adopts a combined configuration of devices such as a waste heat utilization heat exchanger, a steam compressor, a heat exchanger, and an expansion turbine, which can achieve efficient recovery and storage of low-temperature waste heat. The temperature of the available waste heat resource can be 25-150 °C, and the system can maximally raise it to about 300 °C, thereby improving the system efficiency. The present invention can solve problems such as peak shaving and energy storage in the prior art.
Owner:XI AN JIAOTONG UNIV

Central domestic hot water energy-saving control method and system

The invention discloses a central domestic hot water energy-saving control method and system, and relates to the technical field of hot water energy-saving control methods.The central domestic hot water energy-saving control method comprises the steps that S1, a self-locking countdown mutual inductance device is adopted to send a starting signal to a controller, and the controller controls the running time of a water pump of a central hot water system according to the time period set by a user; s2, based on a time period set by a user, a point contact type switch is adopted to start a water pump, the water pump runs for 6-15 minutes, cold water retained in the hot water pipe is circulated back to the water storage tank, and the water temperature of the pipeline is increased; s3, after the set running time is up, the water pump automatically stops running, subsequent hot water supply depends on municipal water pressure conveying, and energy consumption and equipment loss are reduced; by adopting the self-locking countdown mutual inductance device, accurate control over the operation time of the water pump is achieved, the hot water system can automatically circulate hot water in off-peak periods, energy consumption caused by all-weather operation is reduced, the operation process of a user is simplified through the design mode, and use convenience is improved.
Owner:SHANGHAI SHIYOUXIN MECHANICAL & ELECTRICAL ENGINEERING CO LTD

A device for converting the kinetic energy of a natural watercourse, especially a river, into mechanical energy and its conversion into electricity

A water energy conversion device comprises a water damming assembly provided in a watercourse (6, figure 19) (e.g. river) and comprising a rectangular support frame 1 provided with a sheet metal shutt
Owner:BARTLOMIEJ BLACHA

Thermoelectric hydro energy harvester

PCT designated stageWO2025178662A1Lighting and heating apparatusEngine fuctionsHydro energyProcess engineering
A Thermoelectric Hydro Energy Harvester also known as the THEH is a stationary, selfcontained and self-sustaining electrical generation system. The THEH system comprises an electrical generation system using multiple fluid pumps and thermal electrical generators (TEG) to generate electricity by exploiting the temperature differences in bodies of water at various depths, insulated piping, basic fundamentals of fluid dynamics and specialty designed heat exchangers.
Owner:BITONDO STEVEN

Cascade hydropower station power generation optimization scheduling method and device and computer equipment

The application relates to a cascade hydropower station power generation optimization scheduling method and device and computer equipment. The method comprises the following steps: according to historical wind power generation data, historical solar power generation data, historical water power generation data and power generation related parameters, estimated results of multiple resource parameters are calculated; according to the estimated results of the multiple resource parameters, an unbalanced risk constraint condition is constructed; the unbalanced risk constraint condition represents a constraint condition required to be met by monthly reservoir regulation of the cascade hydropower station in the case that wind power generation and solar power generation appear continuous shortages; under the constraints of the unbalanced risk constraint condition and system operation constraint conditions, a cascade hydropower station power generation optimization scheduling model is solved with the minimum operation cost as the target, and cascade hydropower station power generation scheduling results are obtained. The method can make up for the defect that the limited fluctuation ability of water power in cooperation with wind power and solar power in the month is ignored in the traditional annual reservoir power generation scheduling plan.
Owner:TSINGHUA UNIVERSITY +2

A three-source coupled and coordinated power generation device based on water, gravity, and kinetic energy

This invention relates to the field of clean energy power generation technology, and proposes a three-source coupled synergistic power generation device based on hydropower, gravity, and kinetic energy. The device includes a water storage tank, a wheel, an upper water tank, an upper water baffle, a closed-loop water tank pump system, a main shaft, counterweight grooves, counterweight blocks, high-pressure spherical bearings, buffer springs, and a dual-start transmission power generation assembly. The wheel diameter is unlimited and can be arbitrarily enlarged according to actual power demand. The wheel size is directly proportional to the output torque and power generation. The upper water tank is circularly arranged on the wheel. The closed-loop water tank pump system is installed on the upper side of the water storage tank. Multiple counterweight grooves are arranged in a circular array on both sides of the top water tank of the wheel. Multiple high-pressure spherical bearings are respectively installed at the bottom of each counterweight block. Multiple buffer springs are symmetrically installed on the upper and lower sides of each counterweight groove. This technical solution solves the problems of limited power output, single starting method, low energy conversion efficiency, and inability to operate with zero carbon emissions in traditional power generation equipment.
Owner:左清岗