467 results about "Water regulation" patented technology

The invention relates to the technical field of drainage basin water scheduling, and discloses a drainage basin water regulation and control optimization method based on ecological element changes. The method comprises the following steps: deploying a drainage basin monitoring system, and collecting ecological element real-time data such as a hydrological parameter sequence and a remote sensing image; after the data is cleaned and converted, hydrological trend features and spatial distribution features are extracted by adopting a feature learning model, and the hydrological trend features and the spatial distribution features are fused into unified ecological representation through a cross-modal alignment mechanism; inputting the unified ecological representation into a physically constrained neural network prediction model, and outputting a water regimen dynamic prediction value; and finally, based on the predicted value, a water resource regulation and control instruction is generated and executed by using a multi-objective decision algorithm so as to optimize the watershed water circulation process. According to the method, feature extraction comprehensiveness is improved through multi-source data fusion and cross-modal analysis, prediction reliability is enhanced in combination with physical constraints, reasonable allocation of water resources is achieved by means of multi-target decision, the ecological condition of a drainage basin can be improved, and the water utilization efficiency is improved.

The invention discloses a secondary network heat supply temperature control method and device based on a negative pressure water mixing technology, and relates to the technical field of secondary network heat supply control. The secondary network heat supply temperature control method and device based on the negative pressure water mixing technology comprises the steps that S1, operation data, structure steady state data and thermal environment data in a current heat supply task are collected, and a standardized heat supply working condition data set is constructed after preprocessing; s2, local hydraulic fluctuation characteristics are evaluated, and the water mixing proportion, the water supplementing flow and bypass path configuration are dynamically adjusted; s3, jointly analyzing the temperature difference of supply water and return water, the heat deviation and the valve state, and driving water mixing adjustment and path optimization; s4, evaluating adjustment intensity and heat response deviation, and realizing abnormal disturbance response and adjustment strategy correction; and S5, recording negative pressure, uneven heat and cold and response data for subsequent diagnosis and steady state identification. The problems that a traditional water mixing control means is difficult to effectively inhibit pressure fluctuation of the water return end, local negative pressure is easily formed, and local energy waste and uneven heat distribution are caused are solved.

The invention provides a scattered wastewater centralized treatment method, and belongs to the technical field of sewage treatment.The treatment method comprises the following steps that S1, wastewater from various sources is classified and stored; s2, mixing in a reaction tank in proportion according to the type of the wastewater, then carrying out aeration stirring, and adjusting the pH to be acidic to obtain mixed wastewater; s3, carrying out iron-carbon micro-electrolysis treatment on the mixed wastewater to obtain treated wastewater, and enabling the treated wastewater to automatically flow into a sedimentation tank; s4, adjusting the pH value of the treated wastewater to be alkaline, then carrying out delayed aeration treatment, then carrying out coagulating sedimentation, and separating mud from water after the sedimentation is finished; s5, carrying out aeration stirring on the clear liquid, then introducing primary SAO3 ozone for catalytic oxidation, carrying out biochemical treatment by using activated sludge to obtain second treated wastewater, and carrying out sludge-water separation; s6, aerating and stirring the supernate, introducing secondary SAO3 for catalytic ozonation, and discharging into a buffer water tank; s7, the wastewater is cached in a discharge water tank, and sludge is packaged and subjected to outsourcing treatment after being subjected to gravity concentration; the method can be used for simultaneously treating various kinds of wastewater, and energy consumption and cost are remarkably reduced.

The invention relates to the technical field of equipment control, in particular to a linkage constant temperature control method and system based on intelligent bathing equipment. The method comprises the following steps: acquiring set target temperature data of bathing equipment; performing environmental data acquisition on a water inlet pipe and a water outlet of the bathing equipment to obtain real-time water temperature data and real-time water pressure data; performing water temperature difference identification on the set target temperature data and the real-time water temperature data of the bath equipment to generate water temperature difference identification data of the bath equipment; and performing potential fluctuation influence analysis on the real-time water pressure data based on the water temperature difference identification data of the bathing equipment to generate water pressure fluctuation data of the bathing equipment. Through the technologies of real-time data acquisition, intelligent water mixing adjustment, heat source linkage regulation and control, non-contact temperature control and the like, the accuracy and reliability of temperature control are improved.

The utility model relates to a filler-added continuous flow and sequencing batch aerobic granular sludge water treatment system, which sequentially comprises a first hydrolysis acidification tank, an anaerobic tank, a sludge flocculation tank, an aerobic granular sludge reaction tank, a sludge selection tank and a secondary sedimentation tank along the water flow direction of wastewater to be treated when the continuous flow aerobic granular sludge water treatment system is adopted, when the sequencing batch type aerobic granular sludge water treatment system is adopted, a second hydrolysis acidification tank, an effluent regulating tank and a sequencing batch type aerobic granular sludge reaction tank are sequentially arranged in the water flow direction of wastewater to be treated. According to the utility model, the hemispherical microbial carrier filler is added to form a crystal nucleus, so that self-agglomeration of microorganisms inside and outside is accelerated to form a granular biopolymer; the technical effects of high pollutant removal rate, high sludge quantity, long sludge age, high sludge settling speed, efficient sludge selective separation and the like are better realized in continuous flow and sequencing batch water treatment systems respectively, and the method has the advantages of improving the impact load resistance, toxic and harmful resistance, low temperature resistance and the like of the system.

The invention discloses an indoor water tank sediment pushing characteristic acquisition system and method, the system mainly comprises a water tank main body, a buffer unit, a drainage adjusting unit, a sediment throwing device, an imaging unit, an adjustable support and a data processing unit, and according to the method, non-contact data acquisition is carried out through a high-definition camera and a three-dimensional terrain measuring instrument; automatic identification, parameter extraction and migration speed calculation of landforms such as sand waves are achieved, the sediment bed surface is not touched in the whole process, damage to the bed surface form caused by traditional contact type measurement is eliminated, and the authenticity and reliability of data are ensured. Meanwhile, the buffer design of the combination of the flow slowing plate and the multi-stage water baffle is adopted, the kinetic energy of water flow is effectively dissipated through the graded water outlet structure, the impact force of injected water flow is greatly reduced, the bed surface is prevented from being scoured in the initial water injection stage, and the stability of the initial test condition is powerfully protected.

The invention discloses a precise acid regulating system suitable for continuous flow sewage treatment, which comprises a water distribution regulating tank for receiving continuous flow sewage, an acid adding unit for adding acid into the water distribution regulating tank and a control unit, and is characterized in that firstly, the acid is added into the water distribution regulating tank in a quantitative adding manner through the acid adding unit to carry out pH coarse regulation; the control unit calculates the fine adjustment amount of the pH according to the pH target value and the actual value after the rough adjustment of the pH by adopting a chemical dosage-pH-PID algorithm and controls the acid adding unit to add acid into the water distribution adjusting tank for the fine adjustment of the pH; through combination of coarse adjustment and fine adjustment, accurate addition of the acid liquor can be realized, the problems of excessive addition and hysteresis of the acid liquor are avoided, the dosage-pH-PID algorithm is adopted to control the addition flow of sulfuric acid, the actual pH value fluctuation is smaller, the problems of large fluctuation and hysteresis of PLC automatic acid control are solved, and a water quality guarantee is provided for stable operation of a subsequent process section.

The invention discloses a steam generator water level control method, system and device based on digital twinning, and the method comprises the steps: obtaining the detection information obtained through the detection of a sensor in real time, and outputting the actual measurement water level to a water level regulator, so as to obtain the feed water flow regulation amount; the detection information is analyzed according to the real-time online heat balance model to obtain an analysis result, the analysis result and the feed water flow adjusting amount are output to a first flow regulator, and the first flow regulator correspondingly outputs a control instruction to a feed water adjusting valve for feed water flow adjustment. According to the control method, by means of the digital twinning technology and the numerical simulation technology, the water level control process is improved to achieve accurate adjustment, and the operation reliability, the equipment safety, the operation convenience and the operation efficiency of the nuclear power station steam generator are improved.

The invention provides a saline-alkali soil underground water regulation and control method and device, electronic equipment and a storage medium, and relates to the technical field of land governance. Inputting the first historical monitoring information into a pre-constructed prediction model to obtain a predicted value of soil salinity in a future time period; the predicted value of the soil salinity is input into the analysis model, and the target water level of underground water in the future time period is obtained; wherein the target water level of the underground water is used for restraining the target value of the soil salinity to be smaller than a preset salinity threshold value and the target value of the soil humidity to be larger than a preset humidity threshold value; generating a water level adjusting strategy based on the target water level of the underground water, and controlling the opening or closing of the water pump based on the water level adjusting strategy. According to the method, the soil salinity in the future time period is predicted by acquiring the saline-alkali soil monitoring information, so that the target water level of the underground water is obtained, the water level regulation strategy is generated, and the perspectiveness, dynamic nature and stability of underground water level regulation are ensured.

The invention discloses a water supply digital scheduling method and system based on water volume prediction and water storage regulation, and relates to the technical field of water plant water supply scheduling, and the method comprises the steps: creating a scheduling scene model, and obtaining the historical data of a target water plant; determining the water demand in a period of time in the future through a water consumption prediction model; determining each pipe network end unfavorable point and a pressure control range thereof; constructing a training sample set, and establishing and training a voltage drop fitting model; on the basis of the water consumption prediction model and the pressure drop fitting model, according to historical data, peak and valley electricity prices are matched to the maximum degree, and a water plant delivery pressure scheduling scheme, a water production scheme and a water pump scheduling scheme in a period of time in the future are formulated; and real-time factory instant flow data of the target water plant is obtained, dynamic self-correction is carried out in combination with the scheme and historical data, and real-time water plant water supply scheduling schemes including a real-time factory pressure scheduling scheme and a real-time water pump scheduling scheme are formulated. The accuracy and efficiency of water supply digital scheduling of the water plant can be improved.

According to the ship ballast water dynamic adjustment method, device and equipment and the storage medium, the water level data set, the attitude data set and the water pressure data set are obtained through the sensor, then whether the ship is in the balance state or not is determined according to the water level data set and the attitude data set, and when the ship is in the non-balance state, the ship ballast water dynamic adjustment is performed. If yes, determining a water volume adjustment scheme through a ballast water allocation optimization model; and then, according to the water volume adjustment scheme, a water pump operation instruction and a valve opening and closing instruction are generated, so that the ship recovers the balance state. According to the invention, the response time of ballast water regulation can be obviously shortened, and the flexibility and operation efficiency of the system are improved; the intelligent central control unit can be utilized to realize automatic operation, human intervention is reduced, and the operation precision is improved; and a ballast water allocation scheme can be flexibly adjusted to cope with the change of the ship state in real time.

The layered water distributor comprises multiple stages of layered water distributors which correspond to water injection layers and are connected between two adjacent oil pipes, packers are arranged between the outer portions of the oil pipes at the upper end and the lower end of each stage of layered water distributor and a sleeve in a sealed mode, and the top end of the oil pipe at the uppermost end is communicated with a ground water injection pipeline. A water injection regulating valve and a flow meter are arranged on the ground water injection pipeline, and the water injection regulating valve and the flow meter are in common electric signal connection with a ground layering controller. The underground layered water injection rate is metered by the ground layered controller and linked with the layered water distributor of the underground target interval, layered alternate pulsating water injection is carried out, interlayer interference factors are overcome, and layered accurate water injection is achieved; additional fluid channeling, gravity fluid channeling and capillary force fluid channeling generated by pulsation type unstable water injection solve the problem of invalid water injection of dominant channels. Oil reservoir pressure field changes generated by layered pulsating water injection expand the water injection sweep efficiency, and the water injection recovery efficiency is greatly improved.

The invention relates to the technical field of sewage treatment, in particular to a sewage adjusting treatment device which comprises a sewage tank, a water inlet pipe, an overflow pipe and a chemical adding structure, the water inlet pipe and the overflow pipe are installed on the left side and the right side of the sewage tank in the length direction respectively, the water inlet pipe is used for supplying water into the sewage tank, and the overflow pipe is used for discharging water in the sewage tank; according to the design of the device, sewage is allowed to be continuously input and output through a pipeline system, the step that a sewage pool needs to be repeatedly emptied and filled in a traditional method is eliminated, and the treatment efficiency is greatly improved; through horizontal movement and circulating conveying movement of the partition plate and separation of sewage in the sewage tank, the sewage in a flowing state in the sewage tank can be effectively separated, and the sewage flowing in a specified area can be neutralized in cooperation with medicament supply and stirring of the stirring structure; therefore, the medicament is prevented from being mixed into the sewage in other areas in the sewage tank, and the dynamic treatment work of the sewage is realized.

The application discloses an indoor water tank sediment starting speed measurement system and method, and aims at solving the technical problem of sensor disturbance to a flow field and influence on data accuracy in the prior art measurement method.The technical scheme core is that the non-contact measurement characteristics of the PIV technology are applied to the whole process from flow field construction to data acquisition.The device is mainly composed of an imaging unit, a laser illumination unit, a movable sliding frame, a water flow adjusting unit and a buffer plate.Optical measurement is performed through the imaging unit and the laser illumination unit, and physical sensors do not need to be arranged in the flow field, so that the interference of the measuring instrument on the water flow structure and the sediment starting process is fundamentally avoided.The integrated movable sliding frame integrates the sediment laying, particle throwing and measurement functions, and is convenient for quickly positioning a test area;in combination with the buffer plate and the water inlet and drainage adjusting unit, a gradually changing flow field from weak to strong can be accurately and stably simulated.

The present invention discloses a concentrated water regulating valve, comprising: a valve body, which has a water inlet, a water outlet and a discharge port, and a valve cavity is formed inside the valve body; a partition component, which is arranged in the valve body and divides the valve cavity into a first cavity and a second cavity, and a hole system penetrating the first cavity and the second cavity is opened on the partition component, the water inlet and the water outlet are connected to the first cavity, and the discharge port is connected to the second cavity; a valve core, which is arranged in the second cavity to change the flow cross section of the hole system; wherein: the first cavity is arranged as a columnar cavity; at least the water inlet is extended to the first cavity along the tangential direction so that the concentrated water enters the first cavity through the water inlet and then flows in a rotation. By extending the water inlet to the first cavity along the tangential direction, the hole system is continuously flushed to a large extent, and thus the hole system can be effectively prevented from being blocked due to crystallization, especially the end of the hole system where the hole opening is smaller can be effectively prevented from being blocked.

The invention provides a full-automatic water injection multifunctional detachable double-ring water seepage test device, comprising: a double-ring cylinder comprising an outer ring cylinder and an inner ring cylinder located in the outer ring cylinder, the bottom of the double-ring cylinder being provided with a pressure relief layer; the water injection adjusting structure comprises an inner ring water injection adjusting chamber located on the inner wall of the inner ring cylinder above the pressure buffering layer and an outer ring water injection adjusting chamber located on the outer wall of the inner ring cylinder, and the bottoms and the peripheries of the inner ring water injection adjusting chamber and the outer ring water injection adjusting chamber are of first net-shaped structures, and the upper portions of the inner ring water injection adjusting chamber and the outer ring water injection adjusting chamber are of sealed structures; a first water level adjusting structure is arranged in the inner ring water injection adjusting chamber, and a second water level adjusting structure is arranged in the outer ring water injection adjusting chamber. Through the arrangement of the inner ring water injection adjusting chamber and the outer ring water injection adjusting chamber, full-automatic water injection is realized, the permeability coefficients of different areas can be efficiently and accurately measured, and errors caused by manual water injection are greatly reduced, so that the test accuracy is improved.

The utility model discloses skid-mounted treatment equipment for coal bed gas drainage and mining water, which is characterized in that the instantaneous flow rate of the drainage and mining water is matched with the stable and efficient treatment of the treatment equipment according to the characteristics of the coal bed gas drainage and mining water, and the chemical consumption per ton of water is reduced. Comprising a skid-mounted container (7), a coal bed gas discharged and collected water adjusting tank (101) and a sludge airing tank (8), the coal bed gas discharged and collected water adjusting tank (101) is communicated with a coagulation reaction barrel (102) in the skid-mounted container (7) through a discharged and collected water input pipeline (109), and a discharged and collected water input water pump (110) is arranged on the discharged and collected water input pipeline. A discharged and collected water coagulation reaction mechanism (1), a discharged and collected water flocculation reaction mechanism (2), a precipitation clarification mechanism (3), a filtering mechanism (4), an ultrafiltration mechanism (5) and a power supply and control unit mechanism (6) are respectively arranged in the skid-mounted container (7), and coal bed gas discharged and collected water is arranged in the coal bed gas discharged and collected water adjusting tank.

Belonging to the technical field of sewage treatment, the invention discloses an efficient purification device, which comprises: a housing, the top of which is detachably provided with a water inlet shell; the centrifugal mechanism comprises a centrifugal cylinder, a rotating cylinder and a mounting plate, the rotating cylinder is fixedly connected to the bottom of the centrifugal cylinder, the rotating cylinder is rotatably connected to the interior of the mounting plate, and a driving motor is fixedly mounted at the bottom of the mounting plate; the water inlet adjusting mechanism is arranged between the water inlet shell and the centrifugal barrel, and the water inlet adjusting mechanism comprises a water inlet plate, an adjusting disc and two L-shaped plates. Through cooperation of the centrifugal mechanism and the water inlet adjusting mechanism, when the sewage amount is increased, the centrifugal filtering speed is increased, and the sewage introduction amount is reduced, so that sewage accumulation under the normal use condition is avoided, and through the arranged alarm mechanism, an alarm can be given out when the sewage accumulation is caused by excessive filter residues, and the filter residues are lifted and cleaned.

The invention provides a nuclear power plant circulating water adjusting method, system and device and electronic equipment, and relates to the technical field of nuclear power plant control, and the method comprises the steps: obtaining the saturated steam temperature of a condenser of a target nuclear power plant, and periodically collecting the seawater inlet temperature of a water inlet of the target nuclear power plant and the unit output; determining the back pressure of the condenser based on the saturated steam temperature; determining the target circulating water flow of the target timestamp based on the back pressure, the seawater inlet temperature and the unit output; and generating a frequency conversion instruction based on the target circulating water flow, and sending the frequency conversion instruction to the water pump motor. Therefore, by periodically collecting the seawater inlet temperature and the unit output of the water inlet of the target nuclear power plant, determining the backpressure and further determining the target circulating water flow, the backpressure of the condenser can be kept at the optimal level, and therefore the method can adapt to various nuclear energy comprehensive utilization scenes such as power grid peak regulation and nuclear energy heat supply; the power generation efficiency of the nuclear power plant is improved and the power generation cost is reduced.

The invention provides a multi-target segmentation optimization method for grey green blue measures by coupling a wild dog optimization algorithm with an SWMM, and relates to the technical field of urban inland inundation treatment. According to the method, an optimization model taking the minimization of the total investment cost and the maximization of the runoff reduction rate as targets is constructed by analyzing the accumulated water distribution and determining the measure type, scale and cost. Decision variables comprise pump station drainage flow and the like, the flow is analyzed by adopting a period-by-period water regulation and storage method, and a variable relation is established through multiple regression. In the first round, a Pareto solution set is generated by using a wild dog algorithm, and optimization is carried out by combining an SWMM model, so that a Pareto leading solution set suitable for a data-lacking region is obtained. The urban toughness can be improved.

The invention relates to the technical field of irrigation saline-alkali soil improvement, in particular to an irrigation saline-alkali soil improvement method based on straw adsorption and water conservancy regulation, which comprises the following steps: acquiring multi-depth soil parameters and surface meteorological data of an irrigation area, and establishing a soil water-salt dynamic migration coupling model; calculating a vertical moisture flux and a plowing layer net salt flux by using the model; calculating an accumulated salt return risk index to obtain a salt return risk grade; building a straw decomposition index by using multi-depth soil parameters; on the basis of the straw decomposition index, updating the soil water and salt dynamic migration coupling model; in response to the fact that the salt return risk level is a high risk, constructing an optimization objective function; resolving and optimizing the objective function to obtain an optimal irrigation strategy; outputting an optimal irrigation strategy to an irrigation control system, and feeding back the optimal irrigation strategy to the model as an irrigation rate; according to the invention, threats can be identified before a high-risk salt return event occurs, the timeliness and initiative of regulation and control are improved, and the balance between treatment benefits and economic cost is realized.

The invention relates to the technical field of nuclear power plant automatic control and fluid regulation, in particular to a nuclear power plant condensation water regulating valve automatic control system which comprises a sensor data acquisition and synchronization module which acquires and synchronizes parameters in a nuclear power plant condensation water system; the reinforcement learning control module reads parameters of the sensor data acquisition and synchronization module, and generates a regulating valve control strategy by using a reinforcement learning algorithm; the real-time prediction and control decision module controls and predicts the opening degree of the condensed water regulating valve according to the regulating strategy of the reinforcement learning control module; and the anomaly detection and safety protection module reads the parameters acquired by the data acquisition and synchronization module, monitors the parameters and gives an alarm according to an anomaly monitoring result. According to the system, valve oscillation and unreasonable adjustment in a traditional method can be avoided while a valve adjustment strategy is learned and optimized in real time, and the precision and stability of condensed water flow adjustment are improved.

The invention discloses a treatment method of strong complexing copper wastewater, which comprises the following steps: adjusting the pH value of the strong complexing copper wastewater, adding a complexing breaking agent, stirring and reacting until the color of the solution becomes brownish black, then adding ferric chloride for deep purification, and finally adjusting the pH value back for flocculating settling and solid-liquid separation. And finally, obtaining clear liquid with the effluent copper ion concentration stably lower than 0.5 mg / L and ferrite precipitate-sludge with stable chemical properties. The method is simple and low in cost, secondary pollution is avoided, the treatment difficulty and environmental risks of the strong complexing copper wastewater and the sludge obtained through treatment are greatly reduced, and the method has wide application prospects.

The invention relates to the technical field of sewage treatment, and discloses an anti-clogging and anti-freezing bidirectional-flow vertical-flow constructed wetland system which comprises a treatment unit formed by taking a plurality of constructed wetland pool bodies arranged in sequence as a basis, and a water inlet end and a water outlet end are respectively arranged at two ends of each constructed wetland pool body; water inlets are formed in the upper portion and the bottom of the water inlet end, a water outlet and an overflow port are formed in the upper portion and the bottom of the water outlet end respectively, a water inlet pipe and a water distribution pipe network are arranged on the upper portion and the bottom of the water inlet end, a bottom water outlet pipe is arranged at the bottom of the water outlet end, a water outlet adjusting dam is arranged on the upper portion of the water outlet end, and the overflow port is formed in the upper portion of the water outlet adjusting dam. According to the invention, a bidirectional flow operation mode of downward flow in spring and summer and upward flow in autumn and winter is adopted, so that the purpose of preventing the packing layer of the constructed wetland from freezing by utilizing the temperature in tail water is achieved on the premise of not adding an anti-freezing moisturizing layer, and meanwhile, the purpose of preventing the packing layer from being blocked by backwashing is also achieved.

The invention relates to the technical field of gas purification, and discloses an organic waste gas filtering and purifying device which comprises a tank body, a smoke inlet is formed in the bottom of the tank body, a water cabin is arranged on the outer wall of the tank body, a water pumping pipe is fixedly connected to the top of the water cabin, and a water pump is arranged on the circumferential surface of the water pumping pipe. A water adjusting mechanism is arranged in the tank body, the main shaft is rotatably connected to the interior of the tank body, a smoke outlet is formed in the outer wall of the tank body, the feeding pipe is fixedly connected to the inner wall of the feeding bin, and the small filter plate is fixedly connected to the inner wall of the bottom of the feeding bin. The rotating cabin rotates to drive the water spraying pipe to rotate, and the water spraying pipe rotates to increase the spraying area of sprayed water, so that a better purification effect is achieved.

The utility model discloses a sludge cleaning device of a sewage adjusting tank, which comprises a main frame, a submersible dredge pump is arranged below the main frame, the input end of the submersible dredge pump is communicated with a sludge inlet pipe, the output end of the submersible dredge pump is communicated with a sludge outlet pipe, a moving mechanism is arranged above the main frame, and the moving mechanism is connected with the main frame. The moving mechanism comprises a rack plate, a gear, a moving block and a first servo motor. The utility model relates to the technical field of sewage adjusting tank cleaning equipment, and solves the problems that the existing equipment can only suck sludge at a pipeline placement position, needs to manually move a submersible dredge pump for many times to suck sludge at other places, wastes time and labor, reduces the working efficiency, and also causes danger to personal safety as a road beside an adjusting tank is wet and slippery.

The invention discloses a water transfer project risk cascade propagation and risk assessment method and system based on a multi-level topological structure, and the method comprises the steps: obtaining a water transfer project topological network, and generating a node comprehensive risk vector of each node based on multi-source operation data; constructing a basic risk propagation matrix according to the physical connection relationship, and performing structured modulation on the basic risk propagation matrix based on the node comprehensive risk vector to generate a comprehensive propagation operator; performing cascade propagation iterative evolution on the node comprehensive risk vector based on the comprehensive propagation operator, and continuously calculating network dynamics stability characteristic parameters of the comprehensive propagation operator in the evolution process; when it is judged that the system is in a divergent phase state according to the parameters, a comprehensive propagation operator is reconstructed, iterative evolution continues till convergence, and steady-state risk distribution is obtained; and outputting a comprehensive risk assessment result of the system based on the steady-state risk distribution. The method can improve the operation safety management and control capability of the water regulation project under complex operation conditions and external disturbance conditions.

The invention relates to the technical field of water consumption regulation and control, in particular to a laying hen house intelligent drinking water scheduling and water-saving control method integrated with multi-source sensing, which comprises the following steps of: acquiring a chicken flock space-time distribution map in real time through a positioning sensing network, and constructing a partition grid in combination with drinking water line pressure pulsation data, dividing the chicken house into a plurality of regulation and control units with independent hydraulic characteristics based on the partition grids; based on the triggering frequency sequence of the chicken beak touch sensor in each regulation and control unit, generating a water drinking behavior pattern matrix, and meanwhile, combining environment temperature and humidity gradient data to establish a water demand compensation function of each subarea; and according to the water drinking behavior mode matrix and the water demand compensation function, driving the micro-channel water-saving valve corresponding to each subarea to execute a differential water supply mode, and synchronously adjusting the on-off time sequence of the aeration device of the subarea. According to the invention, the real-time dynamic regulation of the flow is realized, the physiological water demand and the system water-saving target are effectively balanced, and the intelligence and robustness of the drinking water control strategy are obviously improved.

The invention relates to the technical field of monitoring and adjusting, and particularly discloses a water-saving irrigation system, method and equipment based on concealed pipe drainage. The system comprises a farmland irrigation water quality reference evaluation value comparison module, a farmland irrigation water quality compensation evaluation value comparison module, a farmland irrigation water quality real-time monitoring module, a farmland irrigation water quality compensation scheme comparison module and a farmland water-saving adjustment module, the problems that the prior art bureau is limited to directly monitor the water quality discharged from each water seepage underground pipe water outlet to a water well, and the influence of the use state of each water seepage underground pipe on water quality monitoring and water saving is neglected are solved; the influence of the amount of water, which is monitored by a flow meter and flows out of a water outlet of each water seepage concealed pipe to a water well, on the adjustment of unqualified farmland irrigation water quality and water saving is not considered, so that better irrigation management service can be provided for the farmland, and the unqualified water quality can be adjusted in a targeted manner; and the water-saving regulation and management level of farmland irrigation water quality is improved.

The invention discloses a watershed ditch and pond-road low-cost ecological sand control method based on hydrological connectivity, which belongs to the field of ecological environment protection and mainly comprises the steps of data acquisition, DEM data correction, confluence network construction, hydrological structure connectivity identification, SWAT model construction, key source area identification, scene analysis and cost benefit analysis. Under the influence of a ditch pond-road system, the key source area identification technology based on hydrological structure connectivity and the drainage basin key source area ditch pond road low-cost water regulation and soil conservation method achieve the dual purposes of reducing the water and soil regulation and control cost and continuously improving the ecological benefit by identifying the key source area.