1498 results about "Water intake" patented technology

The invention relates to the technical field of monitoring and early warning, in particular to a fire hydrant monitoring intelligent early warning system based on an anomaly analysis technology, which comprises a flow velocity anomaly identification module, a node collaborative pressure difference detection module, a pressure difference trend independence judgment module, a node degradation feature extraction module and a risk level generation module. According to the method, through correlation judgment of flow velocity deviation and control signals, no-signal recognition of abnormal water taking behaviors and a cooperative analysis mechanism of pressure change of adjacent nodes, a hydraulic disturbance area under non-manual control can be accurately recognized, and through analysis of spatial independence of a pressure response trend, a water flow disturbance area under non-manual control can be accurately recognized. The function degradation level of the device is extracted according to historical data of on-off time delay and response performance, the quantitative evaluation capability of the node function state is enhanced, the capability of finely dividing the risk level is achieved when risk early warning is given out, the risk identification accuracy is improved, and the active discovery capability of early fault hidden dangers is enhanced.

The invention relates to the field of submarine structure detection, in particular to a submarine water intake structure hidden danger detection method based on acousto-optic joint detection. According to the method, through a multi-source data acquisition and intelligent fusion technology, including centimeter-level high-resolution sonar sounding, water body layer structure acoustic imaging, ROV optical camera shooting observation and laser calibration, scouring, crack and blockage information of the seabed grating is comprehensively obtained, and the seabed grating is comprehensively identified by adopting adaptive enhancement, threshold segmentation and spatial interpolation algorithms. The problems that a traditional sonar imaging blind area exists, the target boundary is fuzzy and the biological adhesion thickness is difficult to quantify are solved, and high-precision and multi-dimensional detection of seabed structure damage, blockage and scour forms is achieved. According to the overall scheme, the detection integrity and accuracy are improved, the submarine environment safety monitoring capacity is enhanced, and reliable technical support is provided for operation and maintenance of submarine facilities.

The invention provides a seawater cooling control system and method which are applied to the technical field of ocean engineering, and the seawater cooling control system comprises a cooling water well, a first temperature sensor, a water level gauge, a water suction pump, a water delivery pump, a monitoring buoy, a second temperature sensor, a flow meter and a controller. The first temperature sensor and the second temperature sensor monitor the temperature in the well and the coral reef area and the water flow speed of the flow velocity metering area respectively, the water level gauge ensures that the water volume in the well is stable, and data are analyzed in real time through the controller to generate a control instruction. The difference value between the environment temperature and the whitening threshold value, the cooling water temperature in the well and the coral reef flow speed serve as input variables, the flow requirement of the water delivery pump is dynamically calculated through a preset rule base, and self-adaptive adjustment is achieved. Through cooperative feedback of the double temperature sensors, it is ensured that the water delivery temperature is strictly controlled within a coral tolerance threshold value, and heat stress whitening is avoided. Layered water taking is combined with a fuzzy control algorithm, energy consumption is reduced compared with a traditional deepwater extraction scheme, and negative effects of shading measures on zooxanthellae are avoided.

The utility model discloses a foreign matter blocking device for a water intake pump opening of a water conservancy irrigation facility, and relates to the technical field of water conservancy irrigation equipment, the foreign matter blocking device comprises a support assembly composed of a top ring plate, a plurality of outer protection rods and a bottom plate, the outer protection rods are annularly distributed, and the top ring plate and the bottom plate are symmetrically fixed at the upper ends and the lower ends of the outer protection rods; a filtering and blocking assembly is arranged between the top ring plate and the outer protection rod. Large foreign matters and small impurities in water can be intercepted by arranging the support assembly and the filtering and blocking assembly, and meanwhile, water flow flowing out of the top end of the spiral guide pipe through the through hole and the spiral guide pipe can impact the blades, so that the blades deflect and drive the rotating shaft and the filtering cylinder to rotate; when the filter cartridge rotates, relative friction is generated between the filter cartridge and the brush, and the brush can clean the surface of the filter cartridge, so that impurities adhered to the filter cartridge fall off, and the condition that the surface of the filter cartridge is blocked due to excessive impurities adhered to the surface of the filter cartridge is avoided.

A dual-channel switching system for a wastewater treatment plant, and an operation method. The double-channel switching system comprises a water intake box culvert in communication with both a dry-season treatment system and a rainy-season treatment system, wherein the dry-season treatment system comprises a coarse-fine combined screen connected to a grit chamber, a membrane screen device, an AAO combined tank, an MER reaction tank and a first ultraviolet disinfection channel in sequence; the rainy-season treatment system comprises a self-cleaning screen connected to a flow control valve, a combined storage tank, a magnetic precipitation system, a fiber rotary disc filter and a second ultraviolet disinfection channel in sequence; the water intake box culvert is provided with a liquid level sensor, a sludge concentration sensor, and a flow rate sensor; a switching valve is provided at the front end of the self-cleaning screen; and the liquid level sensor, the sludge concentration sensor and the flow rate sensor are connected to a control unit In the present invention, a wastewater treatment path can be automatically adjusted on the basis of changes in seasons and water volumes, thereby effectively meeting wastewater treatment requirements in a dry season and a rainy season.

The present invention relates to the technical field of wastewater treatment, and in particular to a wastewater treatment device and method for wood production. The wastewater treatment device comprises a filter tank comprising a first tank and a second tank, wherein the first tank is configured to intercept and treat large pieces of wood, and the second tank is configured to filter out floating wood chips and impurities; a first water intake pipe is provided at an end of the first tank, and side plates are respectively fixed on two inner side wall of the first tank; an intercepting frame is fixed between the two side plates; an electric slide rail is embedded in the inner side of each of the side plates, a slider is slidably connected in the electric slide rail, and a shaft rod is rotatably connected in the slider; and a bucket is fixed between the two shaft rods, and a collecting box is fixed at the top of the side of the intercepting frame away from the bucket. In the present invention, large pieces of wood in wastewater are intercepted by the intercepting frame, the electric slide rails drive the sliders and the bucket to move upwards, the bucket lifts the large pieces of wood intercepted on the intercepting frame, and the bucket is then driven by a turning assembly to rotate, thus dumping the large pieces of wood into the collecting box, and thereby achieving non-stop cleaning.

The present application relates to a system and method for supplying cascade energy using waste heat from a power plant during production. The waste heat from the power plant during production is connected to a heat source inlet of a lithium-bromide absorption chiller and to a waste water inlet of a waste water heat exchanger, and a heat source outlet of the lithium-bromide absorption chiller is connected to the waster water inlet of the waste water heat exchanger and to a water return port of the waste heat from the power plant during production; the lithium-bromide absorption chiller is connected to a chilled water intake line, a chilled water output line, a cooled water intake line and a cooled water discharge line, the cooled water discharge line is connected to a clean water side inlet of the waste water heat exchanger, and a clean water side outlet of the waste water heat exchanger is sequentially connected to a water purification device and a hot water tank; the clean water side inlet of the waste water heat exchanger is connected to a heating water return line, and the clean water side outlet of the waste water heat exchanger is connected to a heating water supply line; and a water outlet of the waste heat from the power plant during production is further connected to a heat source inlet of a solution regenerator, and a waste water outlet of the solution regenerator is connected to the water return port of the waste heat from the power plant during production. The system of the present application has high energy utilization efficiency, thus effectively expanding the range of waste-water waste heat utilization.

The invention discloses a washing machine which comprises a control module for setting the total water inlet amount, the water inlet frequency and the water inlet amount of each stage of a single rinsing program; the water inlet unit intermittently feeds water into the washing barrel according to the set water inlet frequency and the set water inlet amount of each stage; the rotating unit controls the washing bucket to rotate and brake; the control module is used for controlling the rotating unit to enable the washing barrel to rotate in an accelerated manner while water is fed in each stage, executing the action of braking the washing barrel to enable the clothes to fall when the clothes rotate to the top area of the washing barrel along with the washing barrel, and controlling the rotating unit to execute the rinsing action when water feeding in each stage is finished. The invention further discloses a control method of the washing machine. According to the washing machine and the control method thereof, the rinsing rate of clothes can be increased.

The invention relates to the technical field of data processing, and discloses an intelligent drinking water equipment remote management method, system and equipment based on the Internet of Things. The method comprises the steps that various sensors are installed on each drinking water device, related data are collected through the sensors, and the sensors send the collected related data to a remote server through a wireless network; after the remote server receives the related data, the related data are stored in a database, the equipment state of the drinking equipment is obtained and analyzed based on the related data, a control instruction is generated based on the related data and preset control logic, the control instruction is sent to the drinking equipment through a wireless network, and the drinking equipment adjusts the drinking equipment based on the control instruction; dynamically adjusting the set temperature and the use mode of the drinking equipment based on the water taking frequency and the historical data of the drinking equipment; filter element replacement reminding information is generated in time, and the reminding information is sent to the management terminal. The running reliability of the drinking water equipment can be improved.

The utility model relates to a mineralization system and mineralization equipment. The mineralization system comprises a driving module, an extraction module, a heating module and a water storage module, one end of the driving module is connected with a preset water inlet pipeline, the other end of the driving module is connected with a water inlet of the extraction module through the heating module, and a water outlet of the extraction module is connected with the water storage module through the driving module; when the mineral water is extracted, the preset water body is heated, hot extraction is achieved, the mineral water with the preset concentration can be stably produced, the mineral water is stored in the water storage module, the mineral water with the target concentration is provided according to the target water taking instruction, and the water taking requirements of users for mineral water with different concentrations can be flexibly met.

The utility model discloses a buoy for real-time monitoring of water environment, which comprises a buoy main body, a water quality sensor arranged at the bottom of the buoy main body, an environment monitoring component arranged at the top of the buoy main body, and a height adjusting mechanism arranged between the buoy main body and the environment monitoring component and used for controlling the height of the environment monitoring component. A plurality of sets of balance weight rods are further arranged at the bottom of the buoy body, a plurality of sets of balance weight rings are evenly distributed on the balance weight rods, a plurality of sets of connecting grooves are formed in the balance weight rings, and balance weight assemblies are arranged among the multiple sets of connecting grooves. The height of the environment monitoring assembly and the draft of the buoy body are preset in advance, and stable use of the buoy in special weather is guaranteed.

The invention provides a multifunctional intelligent water drinking management system, and relates to the technical field of intelligent water cup management, and the system comprises a target water drinking amount determination module which is used for receiving the inputted user identity information, schedule information and reference water drinking amount, and determining the target water drinking amount based on the user schedule information and the reference water drinking amount; dynamically adjusting and determining the target water intake of each water drinking period every day; the monitoring reminding module is used for carrying out timing reminding, displaying any one or more reminding in visual reminding or remote manual reminding based on the drinking water data; and the water drinking excitation module is used for helping the user to develop a good water drinking habit based on the game excitation sub-module I or the game excitation sub-module II. The system can dynamically adjust and determine the target water drinking amount of each water drinking period every day, helps a user to formulate the water drinking amount matched with the needs of the user in real time, adopts diversified reminding modes to ensure that the user can drink water according to the amount on time, and meanwhile, an incentive mechanism increases the interestingness of the system and is helpful to develop a good water drinking habit.

The object of the invention is a mixing system (1) comprising at least a boiler (2) and a heat pump (3) through which technical fluids for room heating and / or for domestic water production circulate, and an associated method for managing and controlling the switching cycle (ON / OFF) of said heat pump (3) during domestic hot water (DHW) intake. The method comprises at least the following steps: during said domestic hot water (DHW) water intake, ensuring flow to the heat pump (3) at a flow rate mchHP at least adapted to avoid closing thereof, and ensuring a complete achievement of this DHW water intake.

The invention discloses a regional water balance health evaluation method and device based on binary water circulation. The method comprises the following steps: acquiring a natural water circulation key element data set, a social water intake key flux data set and a key evaluation index data set of each subsystem in a historical period in a target area; then carrying out pretreatment; constructing a natural water circulation health evaluation model, and inputting natural water circulation key elements to obtain a first evaluation value; constructing a social water circulation health evaluation model, and inputting social water circulation key elements to obtain a second evaluation value; constructing a cooperation system coordination degree evaluation model, and inputting key evaluation indexes of a social economic system, an ecological environment system and a water resource system to obtain a third evaluation value; and constructing a comprehensive water balance health evaluation model, inputting the obtained first evaluation value, the second evaluation value and the third evaluation value into the comprehensive water balance health evaluation model to obtain a comprehensive evaluation value, and performing evaluation analysis on the regional comprehensive water balance health state through the comprehensive evaluation value.

This invention discloses a wave energy and solar energy combined power generation device and its power station, belonging to the field of new energy technology for power generation using renewable energy. It includes floating boxes and photovoltaic panels. Adjacent floating boxes are hinged laterally to the same horizontal axis. The photovoltaic panels are arranged on the surface of the floating boxes at an angle facing south or horizontally. A connecting rod perpendicular to the horizontal axis is hinged to the horizontal axis. A hydro-generator and a passive piston pump for driving the hydro-generator are installed inside the floating box. The piston rod of the passive piston pump is hinged to the connecting rod at a position away from the horizontal axis. When adjacent floating boxes swing up and down around the horizontal axis, the passive piston pump completes the water intake and drainage actions, and drives the hydro-generator during drainage. This invention as a whole can realize the combined power generation of wave energy and solar energy. During the swinging of the floating boxes, the orientation of the photovoltaic panels can remain approximately unchanged, thus ensuring the utilization efficiency of the photovoltaic panels while fully utilizing wave energy.

The utility model belongs to the technical field of water environment monitoring, and particularly relates to a sudden water environment pollution diffusion emergency prediction device which comprises a vertical rod, the vertical rod comprises a fixed support, a connecting cylinder is fixedly connected above the fixed support, and a supporting rod is arranged above the connecting cylinder; the device further comprises an early warning device, the early warning device comprises a water taking assembly arranged on the supporting rod, a connecting frame is arranged on the water taking assembly, a detection assembly is arranged on the connecting frame, the detection assembly comprises a detection box fixedly arranged on the connecting frame and a controller arranged on the outer side of the water taking assembly, and a detection opening and a discharging opening are formed in the detection box. According to the utility model, the early warning device can be arranged in a plurality of areas in a water environment through the vertical rod, and actual data of sections of different areas and river flow velocity data can be monitored, so that the change of the concentration of water environment pollutants along with time can be predicted; meanwhile, information such as a section time-concentration trend chart, a data table, a pollutant concentration peak value and time, the time when a pollution group arrives at and is away from the section, pollution duration and the like is provided.

The invention discloses a water temperature ecological scheduling effect qualitative and quantitative evaluation method based on deep learning, and the method comprises the steps: calculating an equivalent water taking elevation through employing a segmented cubic Hermite interpolation method based on vertical temperature distribution data, and representing the water taking elevation positions in different scheduling modes; based on a random forest model, a mapping relation between the hydrodynamic parameters and the water taking elevation is trained, and the model is optimized based on MSE, NSE and MAE indexes; a Shapley value method is adopted to analyze key variables influencing the water taking elevation, and the contribution degree of each hydrodynamic force factor to ecological scheduling response is quantified; when other conditions in the ecological scheduling period are not changed, the stoplog gate state is set to be 0, and the variable quantity of the water taking elevation without ecological scheduling is calculated; according to a water taking elevation result without ecological scheduling, a predicted value of the tail water temperature under the anti-fact framework is obtained, and the improvement effect of ecological scheduling is quantitatively evaluated in combination with an uncertainty analysis method.

The invention provides a water purifier, a water purification system and a control method thereof.The water purifier comprises a central filter element, a raw water pipeline, a purified water pipeline and a concentrated water pipeline, the raw water pipeline is connected between a water inlet and a filter element raw water opening of the central filter element, and the purified water pipeline is connected between a filter element purified water opening and a water taking opening of the central filter element; and the concentrated water pipeline is connected between the filter element concentrated water port and the water outlet of the central filter element. A conveying control assembly is arranged on the raw water pipeline, and the conveying control assembly is at least used for controlling water conveying or water stopping of the raw water pipeline; a waste water control valve is arranged on the concentrated water pipeline. The water purifier has a washing mode, the water purifier further comprises a controller, and the controller is used for executing washing operation including controlling the conveying control assembly to enable the raw water pipeline to convey water and controlling the waste water control valve to be opened after the water conveying time reaches a first time when the time of stopping outputting the purified water reaches a first preset time threshold value in the washing mode. Therefore, the water purifier can perform flushing operation on the central filter element and the water purification pipeline.

The invention provides a water plant raw water and clear water lifting pump station joint optimization energy-saving dispatching method and system for solving the problems that traditional pump station dispatching depends on artificial experience, global optimization is lacked, and energy waste is serious. Comprising the steps that a flow-lift and flow-efficiency relation model is established, and a variable frequency pump deduces a performance formula under any frequency based on the similarity law; in the first-stage optimization scheduling, the optimal flow of a water intake pumping station and the optimal water storage level of a clean water tank in each time period are determined by adopting a dynamic programming algorithm and taking the minimum total work of the system as a target, and the conditions of flow balance, water level constraint and the like are met; and in the second-stage optimization scheduling, the genetic algorithm is adopted to optimize the combination and operation frequency of the water pumps in each time period by taking the minimum total power of the pump set as a target, and a flow and lift deviation penalty term is introduced. According to the method, water taking, water storage and water supply whole-process collaborative optimization is achieved, the energy saving rate exceeds 10%, the operation cost is reduced, the method adapts to dynamic changes of the water source tide level and the water demand, and the dispatching intelligent level is improved.

A pet water dispenser includes a feed-water tank, a drinking device and an evaporator; a water container is arranged in the feed-water tank; the drinking device includes a drinking bowl, and a control valve which is connected to the drinking bowl and the feed-water tank and controls communication and separation between the drinking bowl and the feed-water tank; the evaporator includes a water tray and a water intake assembly; the water tray is in butt joint with the control valve which controls the communication and separation between the drinking bowl and the water tray; the water intake assembly is arranged in the water tray, with surface area larger than the bottom area of the water tray. Wastewater is automatically evaporated, thus avoiding inconvenience in wastewater treatment by a user, and also preventing water in the drinking bowl from entering the feed-water tank to cause water body pollution.

The invention relates to a heart failure patient water inflow monitoring system and method based on intelligent water content evaluation, and the system can monitor and evaluate the inflow of a heart failure patient every time through a weight sensor, a three-dimensional camera, a clinical terminal and a nurse station background on a clinical dining carrier. Comprising the food type, the weight and the water content ratio of the current food to be eaten, and the total weight and the total water content of the food eaten this time, and generating a daily in-out report in combination with the sunrise of the heart failure patient. In this way, the daily incoming and outgoing amount of the heart failure patient can be accurately evaluated, specific parameters of the eaten food can be counted in detail and the total water content of the eaten food can be evaluated in detail without tracking and recording of nurses, the subsequent diet balance adjusting strategy is greatly influenced, visual eating data are automatically provided for background doctors, and the efficiency is improved. Doctors can conveniently adjust nursing or rehabilitation and diagnosis and treatment schemes according to the in-out amount of the patient.

The utility model discloses a quick cleaning and purging device for an iron notch mud sleeve, which relates to the technical field of metallurgical equipment and comprises a scraping structure, a connecting rod structure, a butt joint structure, a connecting structure and an air inlet structure. The scraping structure comprises a connecting sleeve, a first threaded hole, a scraping plate, a drill bit and an exhaust hole, the threaded hole is formed in one side of the connecting sleeve and used for being in butt joint with the connecting rod body, the drill bit is fixed to the other side of the connecting sleeve and used for finding the iron notch center and fixing the scraping plate, and the exhaust hole is used for blowing and cleaning residues. The connecting rod structure is connected with the connecting structure through the butt joint structure, and the connecting structure is connected with the air inlet structure assisting in air inlet and water inlet. The air inlet structure comprises an air guide ring, an oil seal ring and an electromagnetic valve, and compressed air is connected to be matched with the butt joint structure to assist in cleaning iron notch residues and residues of the whole rod body. The device is simple and stable in structure, assists cleaning through compressed air, and has the advantages of simplicity in operation, rapidness and high efficiency.

The application relates to the technical field of hydraulic engineering construction, in particular to a water conservancy engineering water intake tunnel construction device and method. The device comprises a support and further comprises a driving motor arranged on the lower side of the support, a water mill drill fixedly installed on the output shaft of the driving motor, and a driving mechanism arranged on the support, wherein the driving mechanism comprises a switching frame which is slidably sleeved on the support in the left-right direction. According to the application, after the water mill drill completes the punching work, the switching frame can move leftwards while the water mill drill moves rearward, thereby saving a large number of steps. According to the design of the clamping plates and the lever, when the front ends of the two clamping plates and the lever are inserted into the gap between the rock column and the hole wall, the rock column can be knocked off by knocking the lever, the rock column can be clamped by the two clamping plates, and the rock column can be taken out by moving the position of the whole device.

The invention relates to the technical field of nuclear power facility safety protection, and discloses a nuclear power water intake invasion species risk early warning management system. The system comprises a monitoring data acquisition unit for integrating water quality, water flow velocity and biological image data to form a comprehensive monitoring data set; the species feature recognition unit is used for extracting biological image features and comparing the biological image features with the reference library to obtain a recognition verification result; the risk assessment unit is used for determining a species risk index according to an identification result so as to obtain a risk level and risk information; and the early warning response unit combines the risk level and historical data, and uses a model to adjust prevention and control measures to determine an optimal scheme. According to the system, multi-dimensional monitoring, accurate identification, scientific evaluation and effective prevention and control of nuclear power water intake invasion species are realized, the problems of low efficiency, poor accuracy and the like of a traditional management mode are solved, and operation safety and ecological environment stability of the nuclear power water intake are guaranteed.

The invention relates to a water balance regulation and control method and device for a power plant, electronic equipment and a storage medium, and the method comprises the steps: inputting the multi-source operation data of a current power plant water system into a preset time sequence prediction model, outputting a water quantity prediction result, and based on a preset multi-target optimization algorithm, according to the current unit operation state and the water quantity prediction result, obtaining a water balance regulation and control result; obtaining a target control strategy meeting a preset constraint condition; inputting the current wastewater quality and quantity information into a preset wastewater scheduling model for wastewater utilization planning, and generating a target wastewater utilization strategy; and generating a target control instruction according to the target control strategy and the target wastewater utilization strategy, and issuing the target control instruction to an execution mechanism so as to control the execution mechanism to perform a corresponding adjustment action based on the target control instruction. Therefore, the static, isolated and extensive defects of existing coal-fired power plant water system management are overcome, the unit power generation water taking amount is remarkably reduced, the comprehensive utilization efficiency of water resources is improved, and the method adapts to the complex operation working conditions such as deep peak regulation.

The invention discloses an agricultural and pastoral area water network irrigation area project scale layout determination method and system. The method comprises the following steps: collecting agricultural and pastoral area data, gridding an agricultural and pastoral area, constructing a topographic feature matrix, calculating the rainfall of each grid, calculating an evapotranspiration value, performing water-soil balance calculation, extracting a plurality of drought centers and dividing the agricultural and pastoral area into a plurality of sub-areas; calculating the water inflow of each sub-region, drawing a water layer distribution diagram, determining a water intake, and constructing a water source engineering layout scheme of each sub-region; extracting a water source project water outlet of each sub-region, determining an irrigation system and constructing a drainage project in combination with irrigation area topographic data, and obtaining an irrigation area project layout scheme of each sub-region; an evaluation index system is constructed, an economic evaluation model is constructed, comprehensive benefit scores of the water network irrigation area project layout schemes are calculated, and the scheme with the highest score is the agricultural and pastoral area water network irrigation area project scale layout scheme. The water resource utilization efficiency is improved, and reasonable configuration and sustainable utilization of water resources in agricultural and pastoral areas are achieved.

The invention belongs to the technical field of washing, and discloses a washing equipment control method and washing equipment.The washing equipment control method comprises the following steps that a washed object is subjected to exhaust treatment; and carrying out water inlet cleaning and dehydration on the washed object subjected to exhaust treatment. Due to the fact that air in a washed object is completely exhausted, the washing machine has good water absorption performance in the water inlet process, soaking of the washed object can be accelerated, the washed object can make full contact with washing water, the washing speed can be increased, and the washing ratio can be increased. Due to the fact that air in the washed object is exhausted before water is fed for washing, risks such as explosion can be avoided in the rotating process of the inner barrel of the washing equipment. According to the washing equipment and the control method thereof, machine washing of the washed objects such as pillows is achieved, the washing efficiency is high, the washing ratio is high, the function diversification of the washing equipment is achieved, and the use experience feeling of a user is improved.

The invention belongs to the technical field of fish blocking bubble curtain devices, and particularly relates to a fish blocking bubble curtain generating device which comprises a bubble curtain device, the bubble curtain device comprises a fish blocking display curtain and a first top plate, a waterproof function box is fixedly installed at the bottom of the fish blocking display curtain, and a plurality of transparent partition plates are fixedly installed in the fish blocking display curtain; a component groove is formed in the inner top of the waterproof function box, an oxygen pipe I and a waterproof strip are mounted in the component groove, a plurality of stroboscope lamps are fixedly mounted on the upper side of the waterproof strip, and a plurality of groups of rising bubbles are formed in the fish blocking display screen through oxygen; fish and other organisms observe rising bubbles in the fish blocking display screen through vision, the purpose of blocking the fish from entering the water intake is achieved, meanwhile, the stroboscope lamp is powered on to act and emit light flashing according to frequency, the fish is driven through changes of light intensity or light color within a short time, and the fish is prevented from entering the water intake position.

The invention relates to the technical field of crossing of water conservancy and nuclear power engineering, in particular to a nuclear power water taking open channel flow field analysis method based on a physical model test, and solves the problems that flow field analysis in the prior art mainly depends on theoretical calculation or numerical simulation, flow field characteristics under the combined action of tidal current, waves, water taking operation and other factors are difficult to truly restore, and the flow field analysis accuracy is low. And the analysis result is greatly deviated from the actual analysis result. The method comprises the following steps: constructing a physical model for accurately simulating key facilities such as a water intake, a drain grating net and a pump room, setting multiple typical working conditions, carrying out a flow field simulation test, and recording data such as a flow velocity, a flow direction and a water level. Through a physical model test means, actual water flow characteristics under a complex marine environment and various working conditions can be reflected more truly, the accuracy and reliability of flow field analysis are remarkably improved, and a scientific basis and technical support are provided for design, operation and risk assessment of a water intake system of a nuclear power plant.

The invention discloses a water filling folding type layered water intake gate which comprises a dam body, and the dam body comprises a connecting piece. Moreover, a first pushing assembly is arranged on the outer wall of the connecting piece, and the first pushing assembly comprises a first rotating rod and a second rotating rod rotationally connected with one side of the first rotating rod. When the first rotating rod rotates, the second rotating rod can be pushed to move, and then the dam body is driven to be unfolded to block the water gate. By arranging the dam body and the pushing assembly, the gate can control a specific area with a specific depth to be safely, reliably and rapidly switched between a water retaining state and a water passing state according to needs, the operation efficiency, safety and reliability of the layered water intake gate of the hydropower station are improved, and the fine, automatic and intelligent level of ecological dispatching management of the hydropower station is improved.