1210 results about "Water diversion" patented technology

The invention provides a pumped storage power station multi-element multi-target intelligent online site selection method and device and a storage medium. The method comprises the following steps: extracting a midpoint of each river network line segment as a candidate point to construct a candidate point set # imgabs0 #; the set # imgabs3 # is screened according to the water diversion distance # imgabs1 # and the water head parameter # imgabs2 #, and a set # imgabs4 # is obtained; verifying the dam length, the dam height, the reservoir capacity and the reservoir surface form of the candidate points in the set # imgabs5 # by using a multi-target constraint model to obtain a set # imgabs6 #; a candidate point # imgabs8 # is selected from the set # imgabs7 #, a candidate point # imgabs11 # matched with the candidate point # imgabs10 # in the set # imgabs9 # is screened out, and a set # imgabs12 # is obtained; and obtaining a candidate point, which is optimally matched with the candidate point # imgabs14 #, in the set # imgabs13 # through suitability analysis. The pumped storage power station online site selection method is optimized from the aspects of site selection efficiency, reservoir capacity calculation, homogeneous site optimization, site comprehensive evaluation and the like.

The invention discloses a weak intercalated layer control-based closed conduit-slope system optimization layout method, which comprises the following steps of S1, geological survey and parameter acquisition: accurately positioning a weak intercalated layer through a geological radar and drilling coring, and determining a rock-soil body strength parameter by combining a laboratory rock-soil mechanical test, geological radar data and rock-soil body strength parameters are analyzed through a random forest algorithm, and the interlayer space distribution rule is predicted. By combining geological survey, numerical simulation, intelligent optimization and dynamic monitoring technologies, scientific layout and adjustment of a closed conduit-side slope system are realized, a weak intercalated layer seepage path is accurately cut off, the safety coefficient of the side slope is effectively improved, meanwhile, expansion of a plastic zone is effectively inhibited, settlement of an overlying soil body or large-range deformation of the side slope is reduced, and the stability of the side slope is improved. The seepage stability and the stress slow release capacity of the system are enhanced, the safety of the water diversion project in a complex geological area is improved, and an operable technical path and basis can be provided for layout of similar projects in the future.

The present application relates to a kind of water diversion valve and the cleaning machine of application have the water diversion valve, water diversion valve includes shell, fixed seat, movable column, drive assembly, shell has first water outlet, second water outlet, water diversion cavity is vertically arranged with the partition plate that it can be separated into corresponding first cavity of first water outlet and corresponding second cavity of second water outlet, the bottom of partition plate is provided with the opening that can be connected with first cavity and second cavity;The top of movable column is provided with the sealing plug that can be closed second water outlet when it rises to the top of second cavity, and the opening is closed when it falls to the bottom of second cavity.This application water diversion cavity of water diversion valve is directly connected with the water outlet of cleaning machine, improves the sealing performance of junction;The sealing plug of the present application is opened and closed alternately to first water outlet and second water outlet by movable column lifting, realizes the independent, absolute sealing of first water outlet and second water outlet, improves the sealing property and reliability under water diversion state, is conducive to improving water diversion effect.

The invention relates to a water inlet separation net, a reverse osmosis membrane unit, a reverse osmosis membrane element, a filter element and a filter system in the technical field of reverse osmosis membranes. The reverse osmosis membrane unit comprises a water inlet separation net body and a reverse osmosis membrane attached to the reverse osmosis membrane element; the water inlet separation net body is provided with water blocking parts which are arranged at intervals and in a staggered mode in the extending direction of the water inlet separation net body, so that the water inlet separation net forms a water diversion flow channel which is continuously bent; and the distance between every two adjacent water blocking parts is reduced in sequence. The water diversion flow channel is designed to be bent, and the distance between every two adjacent water blocking parts is sequentially reduced, so that the flow speed of raw water is gradually increased, on the basis that the water diversion flow channel is designed to be relatively long, the flow speed of the raw water can be maintained to be gradually increased, the raw water spirally flows in the water diversion flow channel, and the flow area of the raw water is gradually reduced; the shear flow velocity of the concentrated water end is improved, and concentration polarization caused by poor water quality of the concentrated water end is weakened, so that the reverse osmosis membrane can more effectively resist pollution and blockage.

The invention discloses a multi-source heterogeneous anomaly detection method based on time correlation, and belongs to the technical field of water diversion engineering, and the method comprises the steps: S1, obtaining multi-source sensor time sequence data in multi-source heterogeneous data, carrying out the preprocessing of the multi-source sensor time sequence data, and dividing a training set and a test set; s2, constructing a double-branch depth feature extraction network model, training by adopting the training set, and testing through the test set to obtain a trained double-branch depth feature extraction network model; the double-branch depth feature extraction network model comprises a double-branch unit, an attention feature fusion unit, a classifier unit and an output layer unit which are connected in sequence; and S3, inputting to-be-detected data into the trained double-branch depth feature extraction network model, and finally outputting an anomaly diagnosis result. A double-branch depth feature extraction network is constructed, adaptive fusion is realized through an attention mechanism, and the problem of poor modal adaptability of heterogeneous data is solved.

The invention relates to the technical field of data processing, in particular to a subway shield tunnel segment external pressure control system based on automatic monitoring, and the system comprises a setting module which is used for setting a pressure sensor, a position sensor and a strain sensor on a segment by precisely recognizing the structure of the segment; the data acquisition module acquires sensor data in real time based on a preset frequency; the pressure analysis module draws a pressure change diagram and judges that the pressure of the duct piece is abnormal, or adjusts the preset frequency; the deformation analysis module receives the deformation analysis instruction, determines the deformation degree of the duct piece based on a radial deformation degree determined based on a plurality of real-time positions and an annular strain degree determined based on a plurality of real-time resistance values, and adjusts a water pressure threshold value according to a comparison result of the deformation degree and a preset deformation degree to generate a drainage instruction; the drainage module receives a drainage instruction and determines the opening number and distribution of water diversion ports based on adjustment of a preset water pressure threshold value and the segment deformation degree. The safety of the metro shield tunnel segment structure is guaranteed.

The invention belongs to the technical field of ship management, and provides a combined intelligent ship water diversion system integrating differential positioning, a laser radar and a camera. In the shore end RTK-inertial navigation depth fusion positioning module, extended Kalman filtering fusion is carried out on data acquired by shipborne equipment, so that continuity of accurate positioning is realized; the construction of a color high-precision map is realized through a laser radar-monocular vision color high-precision modeling module, details such as wharf fender materials and signboard characters can be better distinguished, and the problem of shoreline modeling defects is solved; visualization of obstacles is achieved through the multi-scene dynamic obstacle detection and fusion module, meanwhile, through cooperation of multi-source data, the precision and stability of ship positioning are greatly improved, higher precision and reliability are achieved, and the precision of a guide instruction is improved; through cooperation of the 5G private network and the visualization module, the data transmission efficiency is improved, the timeliness is improved, and transmission delay can be avoided.

The invention relates to a water-rich silt layer deep foundation pit waterproof curtain leakage rapid plugging system and a construction method, through a foundation pit filler isolation water diversion pressure relief plugging technology, plugging is carried out through fillers such as cotton fibers, then water diversion pressure relief flow guiding is carried out through a flow guiding device, the flow guiding device is convenient to manufacture, construction steps are simple, and the construction cost is low. Quick plugging of leakage points is realized, and the construction efficiency is improved; by means of the section steel support flexible cable net water injection bag rapid back pressure technology, when water seepage occurs around the foundation pit, water is injected into the flexible cable net water injection bag through a water injection device, the bag expands to generate reverse pressure, the wall of the foundation pit is pressed, a leakage channel is rapidly blocked, water seepage is prevented, and construction safety is guaranteed. Meanwhile, the water injection rate and pressure are flexibly controlled through the water injection system, and the requirements of different foundation pit environments can be met; through the back pressure technology after the built-in gravel perforated drainage pipe blind ditch, the underground water level in the foundation pit is effectively controlled, and the foundation pit leakage phenomenon is reduced.

The invention discloses a switching assembly and a water outlet device, the switching assembly is suitable for being mounted on a water outlet body, and the switching assembly comprises a plugging piece and a switching piece. The water outlet body is provided with a water inlet cavity, a water outlet cavity and a water distribution hole communicated with the water inlet cavity and the water outlet cavity; the blocking piece is located in the water inlet cavity and suitable for moving between a first position and a second position, and the blocking piece abuts against the water distribution hole in a sealed mode at the first position. At the second position, a water passing gap communicated with the water inlet cavity and the water distribution hole is formed between the blocking piece and the water distribution hole, and due to the fact that in the movement mode, the blocking piece moves in the direction away from the surface where the water distribution hole is located, during switching, friction force is small, switching force is low, and switching is easy. The plugging piece is provided with a stress part, the switching piece is provided with a switching part located in the water inlet cavity, and the switching piece is suitable for being operated to enable the switching part to move relative to the water outlet body and is matched with the slope of the stress part to drive the plugging piece to move towards the second position. And the blocking piece is suitable for being separated from the inclined plane matching relation with the stress part, so that the water outlet cavity is closed.

The invention provides an irrigation district water diversion quantity multistage distribution method under total quantity index constraint, comprising the following steps: dividing an irrigation district into a plurality of calculation units based on an administrative division boundary and a canal system network; respectively calculating the initial water demand of each calculation unit under the living water demand, the industrial water demand, the agricultural water demand and the ecological water demand; based on the initial water demand and according to multiple water resource rigid constraint indexes, performing at least one round of checking and pressure reduction on the initial water demand of each calculation unit to obtain an initial distribution water amount of each calculation unit; and carrying out secondary distribution on surplus water generated after checking and pressure reduction, and compensating the calculation units of which the water demand is not met to obtain the final distribution water of each calculation unit. According to the method, fair, reasonable and efficient distribution of water resources in a complex system with cross coupling of administrative division and canal system networks is realized, and the problems of conflict between a scheme and actual management requirements, water consumption contradiction and the like caused by a traditional single-dimension distribution method are avoided.

A deck with improved construction components and methods may feature weather and UV resistant components which intermesh with each other in forming the finished deck product. The components, when assembled, will also feature a water diversion system that will direct water that falls on the deck surface, whether through precipitation or for cleaning purposes, and direct said water away from the foundation of the deck and the foundation of associated building. The diversion system features two tiers, an upper tier formed primarily from deck plank troughs (310) and wall transition planks troughs (630) and a lower tier formed from mullion troughs (410) and edge cap troughs (510) all in fluid communication with water ejection spouts (720).

The invention relates to the technical field of pumped storage power station water diversion systems, and discloses a method and device for determining a pressure pipeline reinforcement ultra-high performance concrete lining structure. The method comprises the steps that internal pressure information, radius information and lining thickness information of a target water channel, the design tensile strength of a tensile steel bar, the tensile stress borne by ultra-high performance concrete and the lining section area per unit length are obtained; calculating circumferential stress information of the target water channel based on the internal pressure information and the radius information; based on the circumferential stress information and the lining thickness information, the tensile force resultant force of the lining section in unit length is determined; determining the total sectional area of the tensile steel bars based on the tensile resultant force of the section of the lining in unit length, the designed tensile strength of the tensile steel bars, the tensile stress of the ultra-high performance concrete and the section area of the lining in unit length; determining the number of to-be-assembled reinforcements based on the total sectional area of the tensile reinforcements; and the pressure pipeline reinforcement ultra-high performance concrete lining structure is determined based on the number of the to-be-assembled steel bars and a preset steel bar arrangement rule.

The invention discloses a BIM and big data-based water conservancy project full life cycle management method, and particularly relates to the field of project scheduling management, and the method comprises the steps: extracting water inlet and outlet attributes, geographic information and elevation of a water conservancy structure, building a structure node set with water passing semantics, and analyzing the execution sequence of the structure node set to form a function dependence edge; in combination with historical construction records and typical plateau meteorological data, construction offset nodes are extracted, and meteorological response offset attributes are constructed; fusing structure nodes, function dependence edges and response attributes to construct a multivariate construction management and control atlas, and subsequently, dynamically adjusting a node sequence and an accessibility state in the atlas according to a construction log and a real-time meteorological condition after a project is started; finally, the dynamic graph is embedded into a BIM plan task chain, a construction task scheduling path rearrangement scheme is generated through a linkage adjustment channel, the active response and automatic planning ability of construction scheduling to meteorological conditions is achieved, and the construction coordination and task execution efficiency of the plateau water diversion project are improved.

The invention discloses a comprehensive calculation method for water system connectivity under the influence of a small hydropower station, and the method comprises the steps: carrying out the dynamic recognition of a miniature water body connectivity state based on time-space multi-source data fusion, processing a water body existence frequency matrix through a self-adaptive threshold segmentation method, and discriminating the water body connectivity state in combination with a water flow dynamics constraint; identifying the hidden connectivity of the water diversion type small hydropower reducing and dewatering river reach; the method comprises the following steps: constructing a water diversion flow dynamic prediction model based on intelligent sensing of a small hydropower station operation state of multi-modal data; establishing a space-time coupling model of a water system connection state and small hydropower station operation, and determining connectivity critical thresholds oriented to different ecological targets; and constructing a feedback regulation and control mechanism of a micro water body communication state and small hydropower station operation. Accurate evaluation and optimal regulation and control of the connectivity of the water system under the influence of the small hydropower station are realized, and a scientific basis is provided for a small hydropower station rectification scheme.

The invention discloses a mining method using a mining vehicle with a rear collecting head. The mining method comprises the following steps that the volume of a mixture to be absorbed by a mud pump within time t is set; setting the optimal volume concentration of the mixture absorbed by the dredge pump; determining the volume of undisturbed soil absorbed by the dredge pump within the time t according to the volume of the mixture to be absorbed by the dredge pump within the time t and the optimal volume concentration of the mixture absorbed by the dredge pump; according to the digging depth of the collecting head, the width of the collecting head, the advancing speed of the collecting head and the time t, the volume of the volume undisturbed soil collected by the collecting head is collected; introducing a water body through a primer pump to dilute the undisturbed soil collected by the collection head to the optimal volume concentration of the mixture absorbed by the mud pump; according to a mass conservation method, the volume of the undisturbed soil absorbed by the dredge pump and the volume of the undisturbed soil collected by the collecting head within the time t, the relation between the collecting depth of the collecting head and the advancing speed of the collecting head is determined. The defect that the mining vehicle is poor in performance matching performance is overcome.

The invention relates to the technical field of irrigation water, and discloses an irrigation district water optimization method and system based on dynamic data management, and the method comprises the steps: collecting the basic data of an irrigation district project and a monitoring station, the data of the irrigation district monitoring station, the monitoring data of the water volume of each branch water port in an access irrigation district, and the geographic information topological data of an integrated channel system and a land parcel; constructing a digital archive library; obtaining a water demand forecast and a recommended water distribution scheme according to the data in the digital archive, and making an actual water consumption scheme by referring to the water distribution scheme; calculating a canal system utilization coefficient and an irrigation water utilization coefficient based on the canal head water diversion amount, the water consumption data of each tail end water diversion port and the actual water consumption data of the field plot, and evaluating the water utilization efficiency; and when optimization is determined, optimizing water consumption of the irrigation area according to the canal environment data, the canal system utilization coefficient and the irrigation water utilization coefficient. According to the invention, by establishing a total-factor digital mapping relation, accurate metering and dynamic optimization of irrigation water are realized, and dynamic planning of water saving of an irrigation area is realized.

The invention belongs to the technical field of particle swarm optimization, and particularly relates to a water conservancy project water transfer scheme optimization method based on multi-target particle swarm optimization. The method comprises the following steps of: 1, generating a group of initial water transfer flow sequences for each candidate water transfer scheme in a preset discrete time interval; 2, in order to ensure that the water level of the reservoir is always kept in a safe range and prevent sudden change in the water transfer process, constructing a water level physical constraint according to the simulated water level data; and 3, taking the initial water transfer flow sequence as an initial search space of a particle swarm optimization algorithm, taking the comprehensive evaluation function as a target function of the particle swarm optimization algorithm, and finding an optimal water transfer scheme from the candidate water transfer schemes in an iterative updating mode. According to the method, the optimization precision and the result reliability are remarkably improved.

The invention discloses a tunnel high-pressure gushing water comprehensive treatment method integrating probing, guiding, blocking, discharging and fixing, and belongs to the technical field of tunnel construction. The method comprises the following steps: exploring and dividing geological subsections; drainage: drilling a water diversion hole in the concentrated water gushing channel, and pre-burying a multi-stage drainage pipe for graded pressure reduction; blocking is conducted, specifically, the channel is closed through a layered pressure backfill grouting technology; a permanent drainage system is laid, and a deep drainage pipe is connected; reinforcement is carried out, and radial consolidation grouting and groove jumping type inverted arch dismounting and replacing are carried out; and the whole process is monitored in real time, and construction is dynamically optimized. According to the method, exploration, drainage, plugging, drainage, reinforcement and dynamic regulation and control are organically combined, the problems that water plugging, pressure reduction and cooperation are difficult in high-pressure water-rich karst stratum tunnel gushing water treatment are solved, and the method has the advantages of being prominent in systematicness, thorough in treatment, remarkable in pertinence, safe, controllable, novel in process, reliable in quality, dynamic in regulation and control, high in adaptability, obvious in comprehensive benefit and the like.

The invention relates to the technical field of tunnel support optimization engineering, in particular to a diversion tunnel soft rock support structure multi-target intelligent optimization method, which comprises the following steps of: establishing a diversion tunnel excavation support three-dimensional model, and establishing a vault settlement proxy model by taking vault settlement and support material cost as target functions; then, a double-target optimization model of the diversion tunnel soft rock support structure is established in combination with the support material cost, and the double-target optimization model is solved by adopting a multi-target optimization algorithm; and finally, an optimal support parameter is decided by adopting entropy weight-TOPSIS. The method has the beneficial effects that the method is used for guiding diversion tunnel support optimization, and the problem of how to effectively guarantee the tunnel safety and greatly reduce the cost of support materials is solved, so that the rationality and scientificity of tunnel support construction are guaranteed.

The invention discloses a cross-basin water transfer project scheduling scheme evaluation method and system based on a cloud model, and the method comprises the steps: data preparation: collecting scheduling scheme data, and carrying out the normalization processing, and obtaining a reference database; standard cloud construction: defining a comment set, calculating standard cloud digital features and generating a standard cloud; comprehensive cloud construction: evaluating the scheduling scheme by using an expert scoring method, obtaining expert scoring data, calculating through a reverse cloud generator to obtain an evaluation cloud, determining a weight coefficient of an evaluation index by using an entropy weight method in combination with the reference database, and generating a comprehensive cloud; and scheme evaluation: establishing quantitative association of the standard cloud and the comprehensive cloud through dynamic scheme mapping, and determining a scheduling scheme evaluation grade through the similarity of the comprehensive cloud and the standard cloud. The method effectively processes the interactive influence of hydrological randomness and engineering regulation fuzziness, realizes qualitative and quantitative conversion, and improves the scheduling efficiency. The scheduling scheme can be evaluated objectively and scientifically, and a reliable basis is provided for a cross-basin water transfer decision.

A gate linkage control method and device and a series water supply and power generation system are provided. The method comprises the following steps of: acquiring a water demand and current water level information of the series water supply and power generation system, the current water level information at least comprising current riverway water level information and current water diversion trunk canal water level information; determining a gate opening degree control strategy of a first water diversion gate and a second water diversion gate according to the water demand and the current water level information of the series water supply and power generation system; and carrying out linkage control on the first water diversion gate and the second water diversion gate according to the gate opening degree control strategy.

The invention provides a quantitative evaluation method for suitability of plot-level water resources, which comprises the following steps: collecting rainfall data and evaporation data of a meteorological station in a research area, and generating rainfall and potential evaporation data of a target grid unit through a spatial interpolation method; calculating the actual evaporation capacity of the target grid unit, and constructing a water supply accessibility evaluation index according to the distance between the target grid unit and the potential water source and the required water diversion distance; determining the water supply convenience of the target grid unit based on the water supply accessibility evaluation index, superposing the influence of rainfall, constructing a water resource suitability evaluation model, and obtaining a water resource suitability quantitative evaluation result of the target grid unit; according to the method, multiple factors such as rainfall, evaporation and irrigation water accessibility are considered, quantitative evaluation of water resource conditions is achieved, and the method can be used for spatial analysis and planning of regional water resource suitability.

The utility model relates to a drilling, digging and sampling integrated drilling tool which comprises a drill bit, a sampling pipe and a plurality of drill rods, the drill rods are connected end to end, the sampling pipe is fixedly connected between one drill rod and the drill bit, the upper end of the sampling pipe serves as a flow guide cabin, the lower end of the sampling pipe serves as a screening cabin, and a sampling cabin is further arranged between the flow guide cabin and the screening cabin. Water diversion holes are formed in the surface of the flow guide cabin, material guide holes are formed in the surface of the sampling cabin, and screening holes are formed in the surface of the screening cabin. By adopting the technical scheme provided by the utility model, the drill bit and the drill rod are firstly drilled into a stratum, then water flow is injected into the drill rod, the water flow enters the outer surface of the sampling pipe through the water distribution hole, the water flow scours an underground ore bed, so that minerals flow into the sampling cabin in the sampling pipe, and finally, the minerals are deposited in the screening cabin under the action of the gravity of the minerals. The water flow for washing the minerals flows out to the outer surface of the drill bit through the screening holes; and the water flow softens the stratum soil, so that the further drilling difficulty of the drill bit is reduced.

The utility model discloses a floating type self-water-diversion backwashing filter, and belongs to the technical field of farm irrigation equipment. The device comprises a floating frame and a filter cartridge, the rotatable filter cartridge is mounted on the floating frame through a central shaft, and a water wheel, a water diversion delivery pump and a filter cartridge flushing pump are arranged in the cartridge. The water diversion delivery pump directly supplies water to the main water pipe, and external water diversion equipment is omitted; the filter cartridge flushing pump drives the spraying pipe to flush the filter cartridge, and the flushing pipe impacts the water wheel to drive the filter cartridge to rotate, so that dynamic backwashing is realized. The device has the advantages of self-water-diversion integration, waterpower-driven maintenance-free, continuous dynamic backwashing, modularization, easy maintenance and the like, and is suitable for an open type water source irrigation system.

The invention discloses a hill irrigation area water resource allocation method and application, and the method comprises the steps: firstly, determining an irrigation sheet of water resource supply and demand analysis with the minimum granularity according to the characteristics of a hill irrigation area, combining the water storage, water diversion, water lifting and water transfer projects of the irrigation area, generalizing the topological structure of the hill irrigation area, and obtaining a generalized topological structure diagram of the hill irrigation area; then establishing a hill irrigation area water resource optimization scheduling model according to the hill irrigation area generalization topological structure diagram, and performing optimization solution on the model by using a dual simplex algorithm; respectively carrying out irrigation area social and economic water consumption analysis and irrigation area ecological water consumption analysis, and finally carrying out water balance analysis on the water resource subarea where the irrigation area is located. According to the method, water balance is taken as a basic principle, the natural-social binary water circulation path of the water circulation of the hill irrigation area is coupled in the mathematical equation set, complex simulation sequence coding is avoided, modeling is easy, and the universality is good. The constraint equations are linear, a global optimal solution is easy to seek, and the utilization efficiency of water resources in the hill irrigation area can be effectively improved.

The invention provides a water diversion type cascade series hydropower station group, a construction method and a scheduling method, the hydropower station group is constructed in a mountain with height difference, and a plurality of hydropower stations are connected in series through tunnels in the mountain; wherein the water inlet of the first-stage hydropower station is communicated with a reservoir, and the last-stage hydropower station is connected with a downstream river channel; a flow balance discharge hole is arranged below a plant of each stage of hydropower station, the flow balance discharge hole is connected with the plant in parallel, the upstream of the flow balance discharge hole is separated from a diversion tunnel through a branch pipe, the downstream of the flow balance discharge hole is communicated with a regulating reservoir, the flow balance discharge hole is provided with a valve chamber, a discharge ball valve and a flow regulating valve are mounted in the valve chamber, and an energy dissipation facility is arranged at the downstream of the valve chamber. The water flow stably enters the adjusting tank. According to the construction and dispatching method, on the premise that work of other hydropower station units in the cascade is not affected, the flow can still be normally transferred to the downstream reservoir, and therefore it is guaranteed that power generation of the upstream hydropower station and the downstream hydropower station is not affected.

The invention discloses inflatable overtopping flood drainage protection equipment, and belongs to the technical field of flood drainage, the inflatable overtopping flood drainage protection equipment comprises a concave mounting seat, a bridge plate is mounted at the top of the concave mounting seat, a mounting plate is mounted on the inner wall of the bottom of the concave mounting seat, and a water baffle is rotatably connected to the mounting plate; and the water diversion mechanism is installed on the water baffle, two containing grooves are formed in the rear side of the concave installation base, compression bottles are placed in the containing grooves, cover plates are rotationally connected to the inner walls of the containing grooves, the cover plates are matched with the compression bottles, and the compression bottles are matched with the water diversion mechanism. And through arrangement of a floating plate and cooperation of a push rod and a stop rod, when the water level rises, the floating plate can be driven to rise, and a wedge-shaped plate is pushed to move upwards, so that a water baffle is conveniently opened, and automatic pressure relief and water prevention are facilitated.

The invention relates to a tunnel advanced water diversion and drainage method which comprises the steps that a transient electromagnetic method is adopted to detect a tunnel, and the underground water distribution condition and the water-rich degree in front of the tunnel are obtained according to the detection result of the transient electromagnetic method; according to the underground water distribution condition and the water-rich degree, advance drilling is carried out on the front tunnel section of the tunnel, so that a water diversion hole channel communicated with a water-rich area is formed in the front tunnel section; and underground water in the water-rich area is drained and depressurized through the water diversion hole channels. The tunnel is detected through a transient electromagnetic method, advanced drilling is carried out according to the detection result, and a water diversion channel is formed; the water diversion channel is used for conducting advanced drainage and pressure release on dissolved cavity accumulated water, crack water and the like of the non-excavated hole section; therefore, advanced water diversion and drainage of the tunnel are achieved, on the premise that an existing construction technology of the tunnel is not changed, the risk of water burst and mud burst in the subsequent tunnel section excavation process is effectively reduced, and tunnel construction safety is guaranteed.

The invention relates to the technical field of hydroelectric generation, in particular to a method for determining distribution parameters of an impulse turbine, a water bucket and a pin column. The water bucket is of a double-bowl-shaped structure which is symmetrical along the water diversion blade, the water bucket is provided with an upstream face used for bearing water flow impact and a downstream face opposite to the upstream face, a plurality of pin columns are embedded in the downstream face in the normal direction of the downstream face, and the ends of the pin columns are matched with the surface of the upstream face to form a continuous smooth curved face of the upstream face. Under the conditions of high water head and sediment, deformation and cracking of the bucket and even damage of bucket breakage are avoided, and the service life of the bucket is prolonged.

The invention relates to the technical field of water treatment equipment, in particular to chemical dosing equipment for river and lake water purification treatment and a chemical dosing control method of the chemical dosing equipment. Based on a response mechanism of incoming water quality and purifying agent feeding amount, the invention develops agent feeding equipment for high-efficiency purification treatment of large-flux micro-polluted river and lake water quality, and the agent feeding equipment is mainly composed of a water quality monitoring module, a water purifying agent feeding module, a water purifying agent storage module, a water diversion module and an integrated control module; when the water quality of the target water body needs to be purified, the water diversion module is started for water diversion, and the integrated control module automatically starts the water purifying agent adding module after analyzing and judging the current water quality condition of the target water body through the water quality monitoring module by utilizing built-in control logic; the problems of low automation degree, relatively large occupied area and relatively high manual operation and maintenance cost of existing medicament adding equipment are solved, precise medicament adding is realized, and the water quality purification effect is improved.