17 results about "Water resource development" patented technology

The invention discloses an underground water exploitable quantity evaluation method and system based on coupling of a physical mechanism and a neural network, and relates to the technical field of water resource management, meteorological data, surface water hydrological monitoring data, geological survey data, underground water resource development and utilization data and hydrogeological parameter data are integrated and preprocessed, and a basic data set is obtained; a three-dimensional geological model of a heterogeneous structure is constructed by utilizing a digital twin physical engine and combining drilling geological data. By introducing a digital twin technology and a numerical model, the underground water flowing process can be simulated more accurately, a digital twin physical engine is utilized to construct a heterogeneous aquifer digital model, a dynamic interaction process of surface water and underground water is embedded, and the model is enhanced through a graph neural network and a physical information neural network, so that the underground water flowing process is simulated more accurately. Errors caused by hypothesis of aquifer homogeneity, neglecting of surface water-underground water coupling process and the like of a traditional model are effectively reduced, and the accuracy of underground water exploitable quantity evaluation is improved.

The invention discloses a rainy season runoff water source composition and confluence path identification method. The rainy season runoff water source composition of an alpine region is analyzed by combining collection of water body samples such as drainage basin surface water and underground water and environmental tracers (including stable isotopes and hydrochemistry); carrying out watershed rainy season runoff segmentation based on a Bayesian mixture model; a runoff water source confluence path is analyzed by using a reaction solute tracer (including dissolved Si, dissolved inorganic carbon DIC and the like), so that the water source analysis means in a high and cold frozen soil drainage basin with obvious spatial heterogeneity and high hydrological research implementation difficulty are enriched; reliable support is provided for water resource development and protection of the Qinghai-Tibet Plateau region, water demand policy making of the Tibet autonomous region and the downstream region and reasonable water resource allocation.

The invention discloses a reservoir group water supply optimization scheduling method, which comprises the following steps: equivalently transforming a reservoir group water supply optimization objective function and constraint conditions into a linear model, and simultaneously obtaining multi-reservoir group collaborative optimal water supply scheduling parameters by using a linear solver. The method has no special requirements on factors such as reservoir quantity, user quantity, water delivery line arrangement, and geographical environment of a basin or a region, is wide in application range, is convenient to calculate, is not influenced by a topological relation between reservoirs, and can effectively improve the working efficiency of water resource development, utilization and management.

The invention relates to the technical field of water resource assessment, and discloses a regional water resource assessment system based on hydrological survey data, which collects the hydrological survey data in real time through a sensor, builds a convolutional neural network model based on a TensorFlow framework, and performs feature extraction on the hydrological survey data to obtain hydrological survey feature data; obtaining evaluation indexes including the average precipitation of many years, the surface water resource quantity, the underground water resource quantity, the total water resource quantity, the water quality standard reaching rate, the water resource development and utilization rate and the ecological water demand satisfaction rate; a penalty parameter and a kernel function parameter of a support vector machine are optimized by adopting a particle swarm optimization algorithm based on hydrological survey feature data, and a water resource evaluation model is constructed; inputting the real-time data into a water resource evaluation model, performing comprehensive evaluation on the water resource condition of the region based on evaluation indexes, and outputting each current water resource evaluation index value; the regional water resource is evaluated from multiple dimensions, and the regional water resource condition can be comprehensively reflected.

The invention relates to the field of groundwater resource development and utilization, and discloses a method and device for judging the rationality of the groundwater exploitation quantity in an arid region. The judgment method comprises the following steps: constructing a hydrogeological conceptual model based on hydrogeological conditions of a target arid region; constructing an underground water mathematical model of the target arid region based on the hydrogeological conceptual model and an underground water simulation system; based on the actual hydrological data of the target arid region, checking and correcting the groundwater mathematical model to obtain a corrected groundwater mathematical model; and inputting the groundwater resource exploitation quantity into the corrected groundwater mathematical model to obtain a reasonability judgment result of the groundwater exploitation quantity. According to the judgment method, rationality judgment can be performed on the water resource exploitation amount based on the corrected underground water mathematical model, so that scientific basis and guidance are provided for management and control of water resources.

The utility model discloses a hydrogeological survey water flow testing device, which relates to the field of water flow testing and comprises a base, a horizontal component arranged at the top end of the base, a supporting frame arranged on the outer side of the top of the horizontal component and matched with the base, and a movable seat arranged at the top end of the horizontal component and matched with the supporting frame. An adjusting assembly is arranged on one side of the top end of the movable seat, a movable plate matched with the movable seat is arranged on one side of the adjusting assembly, and a tester is arranged at the top end of the movable plate. Under the matching action of the horizontal assembly, the adjusting assembly and the tester, key parameters such as the water flow speed, the flow direction and the flow rate can be stably and accurately measured, the exploration accuracy is improved, the distribution and change rules of the underground water level can be understood, and the underground water level measuring instrument is suitable for popularization and application. And a scientific basis can be provided for water resource management, water resource development and environmental protection, so that planning and implementation of hydrogeological engineering are effectively guided.

The invention discloses a system and method for evaluating the influence of a specific human activity type on a marine ecosystem, and relates to the technical field of ecosystem evaluation, and the method achieves the precise evaluation of the influence of water resource development on the marine ecosystem through the close cooperation of all steps: in the aspect of data processing, integrating multi-dimensional information, and improving the accuracy of data processing. The method covers characteristic parameters of water resource development, basic state data of a marine ecosystem and the like, meanwhile, a multi-level evaluation index system is constructed, comprehensiveness of evaluation is ensured, and in the evaluation process, various modes of historical data recording, field sampling monitoring and the like are combined, so that the evaluation accuracy is improved. The internal association rule between the water resource development characteristic parameters and the marine ecological system state is deeply considered, the evaluation matrix is continuously adjusted by means of a dynamic correction mechanism, and marine ecological changes under different development intensities are deduced through a multi-scene simulation platform. And a comprehensive and targeted basis can be provided for decisions related to marine ecological protection.

The present application belongs to the field of water resources development and prevention technology, and specifically relates to a test device and method for determining the direction of fissure dominant seepage, comprising a water injection system for injecting tracer solution into the fissure and a multi-directional conductivity monitoring system for obtaining the borehole, the water injection system comprising a tracer supply device and a borehole target depth water injection device, and the multi-directional conductivity monitoring system being used for real-time recording and display of the multi-directional groundwater tracer concentration in the borehole. The direction of fissure dominant flow at any depth is determined according to the vector synthesis of conductivity in different directions. The method is simple and easy to operate, has high operability, and can quickly and efficiently determine the direction of fissure dominant flow, thereby providing a theoretical basis and technical support for the fields of underground resource development and utilization, groundwater resource assessment and protection, environmental engineering, geological disaster prevention, and geothermal energy development.

The invention provides a lake ecological flow processing method and a lake ecological flow processing device based on a remote sensing and water balance model, which are used for establishing a set of lake ecological flow standardization processing architecture based on a remote sensing and water balance equation, effectively solving the limitation that the traditional method seriously depends on actually measured hydrological data, and reducing the calculation cost. Meanwhile, compared with the characteristic that long-term data accumulation is needed in a traditional method, the timeliness is remarkably enhanced, so that the application requirements of low cost and rapid evaluation can be met, and good data support is provided for lake water resource development and utilization management and control and lake ecological management work.

The application provides a lake ecological flow processing method and device based on remote sensing and water balance model, which is used for establishing a lake ecological flow standardized processing architecture based on remote sensing and water balance equation, effectively solving the limitation that the traditional method seriously depends on measured hydrological data, and reducing the calculation cost. At the same time, compared with the characteristics that the traditional method needs long-term data accumulation, the timeliness is also significantly enhanced, so as to meet the application demand of low-cost and rapid evaluation, and provide good data support for lake water resource development and utilization control and lake ecological management.

The invention relates to the technical field of gas field water resource development and comprehensive utilization, and particularly discloses a method for recycling valuable elements in gas field water, which comprises the following steps: S1, pretreating the gas field water; s2, the pretreated gas field water is subjected to hardness removal to remove magnesium ions and precipitable ions; s3, carrying out first-stage isothermal evaporation on the hardness-removed gas field water at 50-70 DEG C to concentrate valuable elements; s4, adsorbing and extracting lithium from the gas field water subjected to the first-stage isothermal evaporation concentration by adopting a lithium adsorbent; s5, acidizing the lithium extraction mother liquor, adjusting the pH value to 3.5-5, introducing chlorine gas to oxidize and blow off bromine, and introducing the bromine into a potassium hydroxide saturated solution to generate potassium bromide; s6, carrying out second-stage isothermal evaporation on the bromine extraction mother liquor at 50-70 DEG C, and crystallizing to separate out NaCl; s7, after a large amount of NaCl is separated out, mother liquor continues to be subjected to isothermal evaporation, and potassium mixed salt containing NaCl is separated out. According to the invention, recycling of valuable elements such as lithium, potassium and bromine is realized.

The present invention discloses a method for analyzing the impact of water resources projects in a basin on meteorological-hydrological drought. First, data of the target basin are collected and preprocessed to form a database for input into the SWAT model to simulate the hydrological process and obtain simulated monthly flow data. Then, the basin is divided into sub-basins and hydrological response units, and then a sensitivity analysis of the parameters is carried out to select the parameters with higher sensitivity. Next, the parameters are calibrated and verified to determine the optimal values, and the rationality and applicability of the SWAT model at this time are evaluated to obtain a relatively preferred target SWAT model. Finally, different driving factor scenarios are constructed through the target SWAT model for attribution analysis of meteorological-hydrological drought propagation. Through the method of the present invention, the impact of water resources development and utilization on the meteorological-hydrological drought process in the basin can be effectively explored, providing a scientific basis for future comprehensive prevention and control of basin droughts.

The application discloses a kind of community structure water source driving cause-effect relationship analytical method, device, equipment and medium.It includes: obtaining soil water sample, plant water sample, precipitation water sample and groundwater water sample in target sample plot;The layered treatment of soil water sample obtains multilayer soil water sample and soil moisture content;The target sample plot is divided to obtain groundwater depth zoning data;The species number, species proportion and simpson diversity of annual plant and perennial plant are calculated as community structure characterization index;Test to obtain the isotopic characteristic data of each water sample, and input bayesian mixture model to calculate utilization ratio;Key water source factor is identified by redundancy analysis;The cause-effect relationship influence path is analyzed using partial least squares path model, and the complete cause-effect chain of community structure variation and ecological risk early warning basis are output.The present application realizes shallow groundwater grassland plant water source utilization quantification and water source driving cause-effect relationship analysis, and provides technical support for ecological early warning and water resources development.

The invention discloses a layered permeability coefficient testing device and method based on porous array and hydraulic slope regulation, three hydrological testing holes SCK-1, SCK-2 and SCK-3 which are distributed in an equilateral triangle shape are used for measuring the flow direction of underground water, a testing system is constructed, and the permeability coefficient of the underground water is measured. The method comprises the following steps: determining the flow direction of underground water, decomposing water-containing stratum units, adjusting the flow of a water pump for regulating and controlling the displacement of a pumping well for multiple times, testing the flow velocity and permeability coefficient of each water-containing stratum unit under different hydraulic slope regulation and control conditions, and carrying out data abnormal value processing and statistical calculation to obtain the permeability coefficient of each layer and the whole water-containing stratum. According to the method, the defects of a traditional testing method are effectively overcome, the measurement precision and reliability of the layered permeability coefficient are remarkably improved, and accurate data support is provided for hydrogeological research, underground water resource development, geological engineering construction and the like.

The present invention provides a flexible greening system with integrated water and fertilizer, which belongs to the field of water resource development and comprehensive utilization, and includes a vegetation fixing component, a vegetation growth layer, and a water supply component. The vegetation fixing component is used to connect with a building; the vegetation growth layer is arranged on the vegetation fixing component, and is used to plant green vegetation. The vegetation growth layer includes a substrate layer for vegetation growth and a drainage layer located below the substrate layer; the water supply component is used to supply water to the green vegetation, and the water supply component is provided with a water-fertilizer integrated regulation and a drainage pipe for communicating with the drainage layer. The flexible greening system with integrated water and fertilizer provided by the present invention effectively reduces irrigation water, saves irrigation costs, and takes into account the integration of water and fertilizer.

The invention discloses a method for calculating the water intake guarantee rate of nuclear power users at the downstream of a multi-gate-dam river. The method comprises the following steps that 1, the water delivery reach, gate dam distribution and the initial water storage capacity of the multi-gate-dam river are determined; 2, constructing a distributed water circulation model to obtain a sub-basin dynamic flow process; 3, calculating the outflow of a water delivery point by considering the drainage basin upstream convergence process and the drainage basin outside water delivery process; 4, from the upstream to the downstream of the water delivery river section, the water storage capacity and the outflow capacity of each gate dam unit are calculated in an echelon mode; 5, determining the water intake guarantee rate requirement of the downstream nuclear power user, and calculating the water demand and the available water intake; and step 6, based on a long series calculation result, giving a nuclear power user water taking guarantee rate. According to the method, organic fusion of the distributed water circulation model, hydraulic engineering scheduling and the human drainage taking process is achieved, quantitative calculation is conducted on the water taking guarantee rate, and technical support can be provided for multi-gate dam river ecological protection and water resource development, utilization and management.

The present invention discloses a quantitative method for the negative externalities caused by multi-objective dispatching of a reservoir group on water ecology, comprising the following steps: S1, flow data acquisition: obtaining the natural flow process of the reservoir and the flow process after the reservoir dispatching; S2, flow data processing: interpolation and replacement of missing data, abnormal values ​​and mutation points of the natural flow process and the flow process after the reservoir dispatching; S3, negative externality determination: based on the natural flow sequence and the flow sequence after the reservoir dispatching of the same time period and time step, the difference ratio of each data point is calculated, and the average difference ratio of the data point is calculated according to the sum of the difference ratios of the data points, and the average difference ratio of the data points is used as an evaluation index of the negative externalities of water ecology. The advantages are: it is possible to more conveniently evaluate the impact of multi-objective dispatching of a reservoir group on water ecology, better balance the conflict between water resource development and water ecology, and promote the sustainable development of the ecological environment.