316 results about "Water energy" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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

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.

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.

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.

The present invention discloses a method for predicting the temperature change rate of a water storage tank of an office building water energy storage device, belonging to the technical field of energy conservation and environmental protection, including: S1. Obtain the real-time water temperature data at multiple position points of the water tank, calculate the average value of the multiple real-time water temperature data, and record the average value as the water tank temperature; S2. Collect the weather data and time information of the historical period, as well as the energy storage amount, energy release amount, and water tank temperature of the water energy storage device in the corresponding period, and obtain the training set after data preprocessing; S3. Construct a water temperature change rate model for the water energy storage and release of the water energy storage device; S4. Use the weather data and time information of the historical period as the input, and the water temperature change rate in the corresponding period as the expected output, and train the water temperature change rate model for the water energy storage and release of the water energy storage device; S5. Input the weather data and time information in sub-periods of the next day into the trained water temperature change rate model for the water energy storage and release of the water energy storage device to obtain the predicted results of the water temperature change rate in sub-periods of the next day.

The invention relates to the technical field of hydroenergy hydrogen production, in particular to a water filtering and impurity removing device for hydroenergy hydrogen production, which comprises a filter box, a filter assembly and a scraper assembly, a liquid inlet is formed in the top of the filter box, supporting columns are arranged at the bottom of the filter box, a liquid outlet is further formed in the bottom of the filter box, a box door is arranged on one side of the filter box, the filter assembly is arranged in the filter box, the scraper assembly is arranged at the top of the filter box, and the mounting end of the scraper assembly is fixedly connected with the top of the filter box. According to the water body filtering and impurity removing device for hydroenergy hydrogen production, by optimizing the structural design, introducing an automatic cleaning mechanism and providing a convenient maintenance mode, the efficient, stable and reliable water body filtering and impurity removing function is achieved, and powerful technical support is provided for the field of hydroenergy hydrogen production.

The application discloses a power plant water-energy-salt cascade reuse system for flue gas drying integrated coupling, to solve the problems of low resource utilization efficiency and high energy consumption in the zero discharge technology of power plant wastewater. Through the technologies of circulating cooling water cascade reuse, desulfurization wastewater efficient concentration treatment, desulfurization concentrated water flue gas drying treatment and intelligent monitoring and control unit, the efficient reuse of water, salt and energy in the wastewater is realized. The wastewater is treated through multiple membrane processes such as ultrafiltration, nanofiltration and reverse osmosis, so that the cascade water quality reuse for different purposes is realized. The calcium and magnesium ions are extracted through chemical precipitation and used as industrial raw materials, effectively alleviating the membrane pollution problem of subsequent processes. The high-salinity wastewater is dried by flue gas waste heat to produce industrial salt, realizing the recovery of salt resources. The system adopts an intelligent monitoring and control system, realizes real-time monitoring and automatic adjustment, optimizes the operation efficiency of each treatment unit and reduces energy consumption. The application realizes near-zero discharge of wastewater and efficient reuse of resources, and has significant economic and environmental benefits.

The invention relates to a scheduling management method of a reservoir project, which is characterized in that: by generating a water flow mode network and establishing a target function, under the condition that the water consumption of a reservoir group system is limited, the optimal time and space distribution mode of the water quantity and a water head are sought, so that the generating capacity is maximized. According to the method, water energy resources are fully utilized, electric quantity generated by the hydropower station group system can be absorbed by the power system by default, and benefit maximization is achieved.

This utility model discloses a switching device, including a voltage comparison module electrically connected to an induction amplifier module, a water pump, and a power supply component. The power supply component supplies power to the power supply component, voltage comparison module, induction amplifier module, and water pump. The induction amplifier module senses the alternating electric field of the outdoor unit of the air conditioner and generates induced current and voltage. The voltage comparison module receives the signal from the induction amplifier module and controls the start and stop of the water pump. The beneficial effects of this utility model are that the induction amplifier module can determine whether the outdoor unit of the air conditioner is powered on and transmits the induced electrical signal to the voltage comparison module. The voltage comparison module compares the received signal voltage with a reference voltage to determine whether to supply power to the water pump. Furthermore, an alarm component can determine whether the water pump has malfunctioned and provide a buzzer warning. This device can automatically add or stop water supply based on the start and stop status of the outdoor unit of the air conditioner, thereby saving energy and water resources.

The present application relates to the technical field of pumped storage, in particular to a pumped storage power station water energy parameter calculation method and device based on machine learning. The method determines the reservoir storage curve coefficient and the corresponding water level data as input and output samples to train a preset machine learning model. The water level calculation model trained in this way can quickly calculate the water energy parameters of the pumped storage power station, avoiding the problem of low calculation efficiency and long time consumption caused by iterative calculation of various optimization models one by one in related technologies. At the same time, when determining the reservoir storage curve coefficient, the reservoir storage curve constraint is considered, which can reduce the calculation amount and avoid the inaccuracy caused by random determination of the coefficient. In addition, the penalty constraint determined by the water level data is added to the loss function used in the model training, which can quickly correct the prediction direction in the training process, and finally output the water level parameters that meet the actual engineering requirements.

The present invention provides a novel inflatable hexagon shaped boat which can be used in different applications including recreational, emergency rescue usages or in water energy generation. The boat designed normally has an inflatable flat body with detachable battery- powered drive unit(s) and an inflatable / detachable seat on top of the boat body. These same shaped boats can be easily assembled together to form a larger boat or a floating platform. It is a portable and compact design with a unique hexagon shape for assembling and docking purposes.

The application provides a shell connecting structure, an electric appliance shell and an electric appliance, and relates to the technical field of electric appliance equipment. The main purpose is to solve the problem that the connecting part of a segmented shell is easy to be filled with water, and to help improve the compatibility and generalization rate of different product shells and reduce the processing cost of the shell. The shell connecting structure comprises an upper connecting plate and a lower connecting plate. The upper connecting plate is located above the lower connecting plate, and a water-blocking flow guide is arranged at the connecting part of the two. Water flowing into the water-blocking flow guide can be discharged through the outer side of the lower connecting plate. The electric appliance shell comprises a bottom plate and the above-mentioned shell connecting structure. The bottom plate is located on the inner side of the upper connecting plate, and the connecting part of the bottom plate and the upper connecting plate is higher than the water-blocking part. At least part of the area of the bottom plate is protruded downward and forms an inclined slope-shaped flow guide. The electric appliance comprises the above-mentioned shell connecting structure.

A power system and an operating method thereof according to an embodiment of the present invention can achieve high flexibility, high reliability, ease of maintenance, high scalability, and high efficiency of the power system by supporting multi-sector coupling enabling more efficient linking and coupling through the adoption of power to water energy (P2WE).

This invention discloses a water-energy coupled water resources planning method, apparatus, equipment, and medium. The method includes: collecting and processing historical index values ​​corresponding to water demand prediction for each water-using sector to obtain the upper and lower limits of each index for the planning year, and inputting them into a trained water demand prediction model to obtain the water demand interval prediction results for each water-using sector; collecting and preprocessing historical water resource availability and energy availability data; constructing a water-energy system coupling risk analysis model based on the Copula function to quantitatively analyze the coupling risk of the water-energy system, and setting four coupling risk scenarios: low, medium-low, medium-high, and high; constructing a multi-objective interval stochastic chance constrained programming model, which is decomposed into two deterministic sub-models; solving the two deterministic sub-models using a hybrid intelligent algorithm, and integrating the solution results to obtain and output the regional water resources optimization allocation results adapted to the four risk scenarios of low, medium-low, medium-high, and high.

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