1170results about "Hydraulic engineering apparatus" patented technology

The invention relates to an ecological landscape type disaster reduction seawall, the section form of the seawall is a gentle slope into-sea multi-stage composite type, and the seawall structurally comprises a seawall foot on the seaside, a first-stage planting platform, a gentle slope, a second-stage planting platform, a waterside platform, a wave wall and a road which are sequentially arranged from sea to land; on the basis of ensuring safety, the seawall is subjected to ecological landscape design, so that the seawall can play roles in intercepting silt and purifying water; the effects of weakening wave energy and reducing marine disaster threats can be achieved; and meanwhile, the hydrophilicity of the seawall can be improved, and a leisure activity space is provided for people. The invention further relates to a design method of the ecological landscape type disaster reduction seawall and a method for determining the crest elevation of the ecological landscape type disaster reduction seawall. The section form of the seawall can be determined according to the wave height and the height difference between the sea level and the road surface, the crest elevation of the seawall can be effectively reduced, the engineering cost is reduced, and the seawall ecological function is increased.

The invention relates to the technical field of water conservancy project fish protection, in particular to a safe and efficient fish descending device and a descending operation method.The safe and efficient fish descending device comprises a descending tower, a descending fishway is arranged on the descending tower, and the descending tower communicates with an upstream river channel and a downstream river channel through a fish luring pond and a buffering fishway; an upstream dispatching area controlled by a gate is arranged on the upstream and used for attracting juvenile fishes and sending the juvenile fishes into a downstream fishway; the spiral descending fishway is arranged, the occupied area needed by a fish descending channel is greatly reduced, and the spiral descending fishway is suitable for various intermountain high dam environments lacking of construction of the descending channel; meanwhile, by arranging the buffer pool and the buffer fishway, the impact on the fishes during descending can be greatly relieved, and the survival rate of the fishes is increased; after the juvenile fishes are attracted into the fish luring pond through the fish luring mechanism, the juvenile fishes can be quickly conveyed to the downstream river channel through the downstream fishway by using the upstream and downstream water head difference as power, the downstream efficiency is high while the maintenance cost is kept low, and the device is suitable for wide application and popularization.

The invention relates to an intelligent regulation and control system for multi-phase conversion of water quality of a gate-controlled river reach, in particular to the field of water treatment, and realizes accurate dynamic perception of the multi-phase conversion process of the water quality of the gate-controlled river reach by constructing a high-fidelity digital twinborn body and fusing a real-time data assimilation technology; by means of a time-space diagram neural network agent model based on an attention mechanism, the system can predict a complex time-space pattern of pollutant concentration field and phase evolution under different regulation and control strategies in an ultra-fast manner; on the basis, a multi-agent reinforcement learning algorithm is adopted to automatically generate a globally optimal gate group coordinated regulation scheme, and multiple targets of water quality improvement, ecological protection, engineering operation and the like are effectively coordinated; and finally, a theoretical strategy is reliably converted into a physical action through rolling optimization and a closed-loop execution mechanism, and adaptive adjustment can be performed according to environmental feedback, so that the emergency response speed of sudden water pollution events, the scientificity of regulation and control decision and the intelligent level of water quality management of the whole river network are comprehensively improved.

The invention relates to the technical field of fish protection in water conservancy projects, and in particular to a fish passing system suitable for a low-head overflow dam and an operation method thereof, comprising a lock chamber, an upper lock head and a lower lock head arranged at two ends of the lock chamber, gates being installed on the gate heads, and a diversion port being opened on the gates; a main rotating blade is fixedly arranged near the diversion port in the lock chamber, reciprocating components are symmetrically arranged on both sides of the main rotating blade, the reciprocating components include a rotating rod and a guide rod arranged in parallel, and the main rotating blade is connected to the rotating rods of the reciprocating components on both sides through a transmission component; a reciprocating plate is arranged on the rotating rod, the reciprocating plate is slidably sleeved on the guide rod, a rotatable flipping rod is arranged on the reciprocating plates opposite to each other on both sides, and a disturbance frame is fixed on the flipping rod; the flipping rod drives the disturbance frame to flip together, so that the disturbance frame is switched between a horizontal state and a vertical state; the water flow at the diversion port is subjected to power conversion, the reciprocating plate on the rotating rod is driven to reciprocate linearly, and the migratory fish is driven to move upward to the upstream waters by automatically flipping the disturbance frame.

A management system for use in relation to a marine ecosystem includes data collection devices and an agent, such as an autonomous water upwelling or downwelling device, capable of causing implementation of a computer-determined change in the ecosystem, wherein a computer is programmed to operate an intelligent feedback loop and iteratively receive and process gathered data; determining from reinforcement learning whether to implement a change to the ecosystem designed for its improvement, communicate instructions to the agent for implementing the change, observing effects of the change and determining whether a further change would benefit the ecosystem; wherein the change includes causing artificial introduction or removal of water from a depth in the ecosystem by upwelling or downwelling and the rate thereof. Also included is a method of acquiring knowledge of, and managing an ocean ecosystem using the above system.

The invention discloses a method for rapidly optimizing the wave absorption performance of an underwater ecological submerged dike, and belongs to the technical field of ocean engineering, and the method comprises the following steps: taking an oyster reef as a research object, comprehensively considering marine environment factors and ecological submerged reef arrangement which influence the wave absorption performance of the ecological submerged reef, carrying out dimensionless processing, and determining seven independent variable parameters: relative water depth, water depth, water depth, water depth and water depth; the wave steep, the relative immersion depth of the oyster reefs, the relative length of the oyster reefs, the relative distance between the oyster reefs, the riverbed gradient and the number of the oyster reefs are determined. According to the method, nonlinear influences between all variable parameters are considered, a second-order optimal design model is suggested, an information matrix representing how changes of all factors affect variances and covariances of model parameters is calculated, and an optimal design scheme is obtained by maximizing eigenvalues of an inverse matrix. Compared with the traditional full-factor test design, the method has the advantages that the number of design groups is reduced on the premise of ensuring that the test combination is as comprehensive as possible, and the time of physical model experiment and numerical simulation calculation is greatly shortened.

The fish screen for a suction strainer includes at least one first plate having a central opening formed therethrough, a second plate, a helical spring, and a mesh bag. The helical spring has opposed first and second ends, with the first end secured to the at least one first plate and the second end secured to the second plate. The helical spring has first and second portions positioned respectively adjacent to the first and second ends. The second portion has a smaller diameter than a diameter of the first portion. The mesh bag releasably and removably covers and receives the at least one first plate, the second plate and the helical spring. The second portion of the helical spring is adapted for releasably holding a free end of a suction strainer received within an interior of the helical spring through the central opening of the at least one first plate.

The invention belongs to the technical field of ecological restoration and wetland engineering, and discloses an ecological corridor-based abandoned fishpond ecological restoration method, which comprises the following steps: S1, land forest restoration: planting saline-alkaline tolerant vegetation around an abandoned fishpond and in a land and abandoned fishpond transition area in a layered manner; s2, mangrove forest wetland construction: performing microtopography modification to adjust the bottom mud elevation, and planting mangrove forest plants in a layered manner; s3, ecological corridor construction: constructing an ecological corridor on one side of the abandoned fishpond and the land, and constructing an ecological corridor on one side of the abandoned fishpond and the ocean; s4, ecological monitoring and maintenance: carrying out hydrological, tidal and biological detection regularly; the three-dimensional ecological corridor system of'land forest-mangrove forest wetland-ocean 'is constructed, and the abandoned fish pond is transformed into the mangrove forest wetland, so that not only are biodiversity improvement and ecosystem connectivity realized, but also stable migration and inhabitation space can be provided for terrestrial and aquatic organisms.

The invention provides an arrangement method of a steel fishway structure capable of automatically pulling and stretching along with water level changes. The arrangement method comprises the steps that the water level difference of an inlet and an outlet of a fishway is monitored in real time; the buoyancy driving assembly is triggered according to the water level difference to drive the steel fishway subsections to move along the rails; calculating the telescopic length based on the water level difference and the fishway base length to ensure that the gradient is within the design range; the track motor is controlled to adjust the cable-stayed angles and gaps of the fishway sections; the gradient error is corrected in real time through the tilt angle sensor; the distribution density and the opening-closing angle of the guide plates are dynamically adjusted according to the flow speed and the water depth, and vortex is inhibited; the water temperature change is monitored, the thermal deformation compensation amount is calculated, and deformation is absorbed through the elastic sealing assembly. The fish passing rate can be increased, the adaptability and stability of the structure are enhanced, and the device is suitable for complex hydrological environments.

The invention discloses a dam underwater seepage point detecting and plugging integrated system and method, and relates to the field of dam safety maintenance. The dam underwater seepage point detection and plugging integrated system comprises a suspension frame and further comprises a sleeve fixedly connected to the suspension frame; the piston disc is connected in the sleeve in a sliding manner; one end of the spring is fixedly connected with the inner wall of the sleeve, and the other end of the spring is fixedly connected with the piston disc; through the synergistic effect of the sealing air bag, the spring piston disc and the conducting ring warning indicator, efficient and reliable plugging is achieved, the sealing air bag expands to fill gaps, water seepage is isolated, equipment is fixed, and the impact resistance is enhanced through the L-shaped design; the spring is matched with the piston disc, so that the gap is uniformly filled with polyurethane, the piston disc moves to supply air to the air bag, and the whole-course sealing stability is ensured; the conducting ring and the warning indicator feed back the plugging state in real time, diving operation of personnel is avoided, and efficiency and safety are improved.

The invention relates to the field of migration fishways, in particular to a fishway structure and a construction and design method. The fishway structure comprises a migration channel, a plurality of rows of pile structures are arranged at the bottom of the migration channel, each row is provided with at least two pile structures at intervals, and the adjacent rows of pile structures are staggered in the length direction of the migration channel. According to the fishway structure, the pile structures are arranged at the bottom of the migration channel, the adjacent rows of pile structures are staggered in the length direction of the migration channel, climbing assistance is provided for eels, and meanwhile, compared with a bristle base, the pile structures do not have bristles, so that the situation of chipping blockage does not exist, and cleaning is easy. Meanwhile, the pile structure can increase friction along the way, water flow hedging and diffusion are used for dissipating energy, and the effects of improving the flow state and reducing the flow speed of the migration channel are achieved.

A leaching and desalinating system for sandy soil in estuarine land reclaimed by sand blowing before planting greenery is provided. The leaching and desalinating system comprises a water pump and pipe assembly, a freshwater storage tank and a main diverting and draining channel. The water pump and pipe assembly lifts freshwater from a river to the freshwater storage tank through a water delivery pipe, multiple infiltration parts in which greenery is planted are provided on the waterside slope, the infiltration parts are connected to each other via multiple drainage infiltration channels. The present disclosure can quickly desalinate the sandy soil in land reclaimed by sand blowing at a low cost, improve the physicochemical properties of the soil, and provide a basic guarantee for the subsequent greenery planting on the sandy soil in land reclaimed by sand blowing.

The invention discloses a backwater side seepage drainage and pressure reduction anti-seepage method based on a built sandy soil embankment foundation, and relates to the field of hydraulic engineering embankment seepage control. The technical problems that in existing sandy soil embankment foundation seepage drainage design, due to dynamic change of soil layer permeability, the drainage effect is poor, and slope stability is difficult to guarantee are solved. The method comprises the following steps: establishing a seepage field model through a three-stage hydraulic fracture test, and measuring a permeability coefficient, critical pressure and a failure criterion; the groove is dynamically excavated in three stages, the excavation depth and the slope gradient are corrected in real time according to actually measured data, and the shape of the groove is verified through a model; and finally, laying an inverted filter layer, a drainage body and an anti-scouring layer, wherein the permeability coefficient of the inverted filter layer and the aperture ratio of the drainage body are dynamically adjusted according to actually measured data. According to the method, accurate control over seepage drainage and pressure reduction of the sandy soil embankment foundation is achieved through dynamic coupling of testing, construction and a numerical model, and the method is mainly used for seepage treatment of the backwater side of a built embankment and slope stabilization and reinforcement.

The invention relates to the technical field of water conservancy project fish protection, in particular to a fish passing system suitable for a low-water-head overflow dam and an operation method thereof.The fish passing system comprises a lock chamber, an upper lock head and a lower lock head, the upper lock head and the lower lock head are arranged at the two ends of the lock chamber, gates are installed on the lock heads, and flow guide openings are formed in the gates; a main rotating blade is fixedly arranged at the position, close to the flow guide opening, in the lock chamber, reciprocating assemblies are symmetrically arranged on the two sides of the main rotating blade, each reciprocating assembly comprises a rotating rod and a guide rod which are arranged in parallel, and the main rotating blade is in transmission connection with the rotating rods of the reciprocating assemblies on the two sides through transmission assemblies. Reciprocating plates are arranged on the rotating rods, the reciprocating plates are arranged on the guide rods in a sliding and sleeving mode, rotatable overturning rods are arranged on the opposite reciprocating plates on the two sides, and disturbance frames are fixedly arranged on the overturning rods; the overturning rod drives the disturbance frame to overturn together, so that the disturbance frame is switched between a horizontal state and a vertical state; power conversion is conducted on water flow of the flow guide opening, the reciprocating plate on the rotating rod is driven to do reciprocating linear motion, and the migratory fishes are driven to ascend to an upstream water area through the automatic overturning disturbance frame.

The invention discloses a permeable hinged type ecological slope protection structure for sheltering benthonic animals in a canal. The permeable hinged type ecological slope protection structure is formed by distributing a plurality of slope protection blocks on a bank slope in an array mode. The slope protection block body is of an integrated structure and comprises an upper halfpace section and a lower rectangular enclosure frame section. An inner cavity of the slope protection block body is formed by a space enclosed by the lower rectangular enclosure frame section and a halfpace-shaped cavity in the upper halfpace section; lateral channels communicating with the inner cavity are formed in the left side and the right side of the slope protection block body, and the lateral channels on the two sides directly face each other. Through holes communicated with the inner cavity are formed in the top surface, the front side surface and the rear side surface of the upper halfpace section; the front side and the rear side of the lower rectangular enclosure frame section are respectively provided with a linkage hinge bayonet and a linkage hinge clamping block which are matched with each other; an induction adhesion layer is arranged on the top surface of the upper halfpace section; in the shoreline direction, the lateral channels of the adjacent slope protection block bodies are aligned and communicated; the adjacent slope protection blocks are clamped and matched in the direction perpendicular to the shoreline. According to the method, a relatively stable near-bottom shielding and slow-flow sheltering space can be formed, and habitat communication and attachment induction interface construction are considered.

The invention discloses a cascade reservoir flood control water level combined application scheduling method and scheduling system, and relates to the technical field of cascade reservoir scheduling, and the method comprises the following steps: dividing into a plurality of sub-regions according to an administrative region, determining a sub-reservoir corresponding to each sub-region, and collecting the rainfall and historical flood discharge data; analyzing the water storage capacity of each sub-region at the moment corresponding to the historical data to form a training data set; constructing a flood season flood discharge prediction model, and obtaining the target flood discharge flowing into the sub-reservoir by using the prediction model; analyzing the water level change in the flood season according to the target flood discharge amount, and judging whether scheduling is needed; and if scheduling is needed, determining a drainage flow combination of each sub-reservoir, setting a constraint condition, and performing optimization through a multi-target genetic algorithm to obtain an optimal drainage flow scheme meeting constraints. According to the scheme, the scientificity, the accuracy and the intelligent level of combined dispatching of the cascade reservoirs are remarkably improved.

The present invention discloses a double-layer overpass fishway structure, belonging to the field of fishway design in water conservancy projects. The double-layer overpass design enables an upper overflow and a lower submerged flow. The water flow structure within the pool chamber is diverse and can adapt to different water depths, creating favorable hydraulic conditions for fish with different preferences. The double-layer overpass fishway comprises: a trumpet-shaped inlet section, a hump-shaped weir transition section, a double-layer overpass pool section (including a lower disc-shaped channel section and an upper overflow section), and a resting pool section. The hump weir section divides the pool chamber into an upper overflow area and a lower submerged outflow area. The formation of the upper overflow area draws jumping fish into the upper overflow weir section, while the lower submerged flow area is used to attract bottom-dwelling fish and allow them to smoothly swim upstream through the disc-shaped channel section. The arrangement of the resting pool section creates a low-flow zone to allow fish to recover their strength, thereby allowing them to successfully complete their upstream migration and ensure the stability of the river ecosystem.

The invention provides a hydropower station ecological flow discharge control method and device, and the method comprises the steps: determining a to-be-analyzed riverway corresponding to a target hydropower station, and determining the riverway elevation and target riverway creatures corresponding to the to-be-analyzed riverway; a hydrodynamic model corresponding to the to-be-analyzed river channel is established according to the river channel elevation, biological environment elements corresponding to the target river channel organisms are obtained, and the biological environment elements comprise the flow velocity, the water depth, the water temperature and dissolved oxygen; according to the hydrodynamic model, the at least one reference discharge control parameter and the biological environment elements, calculating a biological inhabitation river area value corresponding to each reference discharge control parameter; and determining a target discharge control parameter according to the biological inhabitation river area value corresponding to each reference discharge control parameter, and controlling the ecological flow discharge of the target hydropower station based on the target discharge control parameter. By means of the method, water resources can be fully utilized, the ecological environment in the riverway can be protected, and aquatic organisms in the riverway can be effectively protected.

The invention discloses a reservoir desilting body layout scheme evaluation method based on siltation risk characteristics, belongs to the technical field of reservoir desilting, and can solve the problem that an existing method is low in evaluation precision and accuracy. The method comprises the following steps: S1, determining a plurality of subareas of a reservoir according to historical operation data of the reservoir, and determining sedimentation risk characteristics and sediment distribution characteristics of each subarea in each of a plurality of continuous time periods; s2, according to the siltation risk characteristics and the sediment distribution characteristics, constructing a sediment distribution prediction model of the reservoir; and S3, utilizing the sediment distribution prediction model to predict the sediment distribution situation after the reservoir implements the desilting body layout scheme, and evaluating the desilting body layout scheme according to the sediment distribution situation. The method is used for evaluating the reservoir desilting body layout scheme.

The utility model discloses an unmanned intelligent environmental protection monitoring device, which relates to the technical field of monitoring devices, and particularly comprises a water blocking gate, a water storage tank and a water storage tank, the gathering plate is mounted at the front end of the water blocking gate and used for gathering garbage floating on the water surface; the salvage part is mounted on the water blocking gate and used for salvaging garbage floating on the water surface, and one end of the salvage part extends to the position below the gathering plate; the collecting frame is installed on the back face of the water blocking gate and used for collecting the floating garbage fished by the fishing component; and the driving component is used for driving the fishing component to circularly move along the fishing path. The unmanned intelligent environmental protection monitoring device can drive a water quality monitor to ascend and descend along with ascending and descending of the water surface height so as to adapt to monitoring of different water surface environments, a first gear of a driving motor working belt rotates to drive a second gear to work through a chain, and therefore a fishing net is driven to move; and the salvage net is matched with the salvage plate to convey the horizontally floating garbage into the collection frame for collection.

The invention discloses a construction technology for a prefabricated drainage box culvert steel formwork, and is suitable for the technical field of box culvert formwork construction. The drainage box culvert steel formwork system comprises the construction steps of construction preparation, installation of a pedestal and an inner formwork support, installation of a box culvert foundation, installation of an inner formwork assembly, installation of a formwork assembly, one-time pouring forming, formwork removal after pouring and transferring. The construction site regionalization layout is adopted, a box culvert steel bar binding area and a formwork installation transverse moving area with an adjustable inner formwork support are arranged, the circulating operation of formwork erecting, pouring, demolding and transferring is achieved through a main beam suspension type inner formwork assembly, and a hydraulic formwork collecting device is innovatively adopted for driving a symmetrical hinged type inner formwork system; and in combination with the symmetry and multi-point uniform stress characteristics of a plurality of auxiliary supporting devices, the bending deformation of the inner template is effectively controlled through sequential control of a layered equal-height high-speed pouring process with preferential base angles.

The invention provides a lake ecological restoration method based on storm disturbance, which comprises the following steps: simulating distribution characteristics of storm disturbance intensity in the whole region of a lake by using a three-dimensional hydrodynamic model, and designing an arrangement scheme of sheltering devices in each region of the lake based on suspended particulate matter characteristics in each region of the lake; wherein the suspended particulate matter characteristics comprise mineral components, particle size distribution, concentration distribution and resuspension flux of the suspended particulate matter; the sheltering devices are arranged at the corresponding positions of all areas of the lake through modular splicing structures. Monitoring the characteristics of suspended particulate matters inside and outside the sheltering device in each region of the lake in real time so as to evaluate the inhibition effect of the sheltering device in each region of the lake on the suspended particulate matters; and adjusting the arrangement scheme of the sheltering device in each region of the lake according to the evaluation result. According to the method, the influence of wind wave disturbance on the sheltering device is considered, the effectiveness of the sheltering device can be improved, and the stability of an ecological system is further improved.

The invention discloses a shallow water area berthing component temporary positioning device and a construction method, and relates to the technical field of concrete members, the shallow water area berthing component temporary positioning device comprises a plurality of wharf foundation piles and berthing components, every two wharf foundation piles form a group, a first connecting rod is arranged between one group of wharf foundation piles, a supporting rod is arranged on one side of each wharf foundation pile, and a second connecting rod is arranged on the other side of each wharf foundation pile. A second connecting rod is arranged between the wharf foundation pile and the supporting rod. A positioning hole is formed in the berthing component, a fixing rod is arranged in the positioning hole, one end of the fixing rod abuts against the first connecting rod, and the other end of the fixing rod abuts against the supporting rod. The first connecting rod and the supporting rod are provided with a positioning mechanism. Fixing mechanisms corresponding to the fixing rods are arranged on the two sides of the berthing component, supporting is provided for hanging of the berthing component through the steel frame formed by lap joint of the supporting rods and the connecting rods, the berthing component is stably and accurately fixed to the supporting rods and the connecting rods through the positioning mechanisms and the fixing mechanisms, and follow-up construction and installation are facilitated.

The invention relates to the technical field of environmental engineering, and discloses a river habitat building structure based on dredged soil waste slag utilization, comprising a river channel used for bearing an ecological restoration structure and allowing water flow to pass; the ecological revetment is used for protecting a river bank line and enhancing the stability of the river bank line; the underwater layered fish reef is used for providing an underwater space for fish inhabiting, migration and hiding; the artificial floating wetland is used for improving water quality and providing an aquatic plant growth environment; the multifunctional shoal is used for providing diversified habitat environments for aquatic and amphibious organisms; the artificial inner island is used for enhancing biological diversity and providing a bird breeding and foraging place; mixing the mud flat. According to the technical scheme of resource utilization of the dredged soil, the waste dredged soil is converted into a basic material for ecological restoration of the river, the effects of improving the self-purification capacity of a water body and improving the biological diversity are achieved, and the problems of resource waste and secondary pollution are effectively solved.

The invention discloses a multifunctional water retaining device for water conservancy construction, and relates to the technical field of water conservancy projects, the multifunctional water retaining device comprises a base and a first water retaining plate fixed at the top end of the base, a plurality of ground nails are arranged at the bottom end of the base, a self-adjusting assembly and a buffering assembly are arranged in the first water retaining plate, and the buffering assembly is located below the self-adjusting assembly; the self-adjusting assembly comprises an open groove formed in the first water baffle, and a second water baffle is installed in the open groove in a sliding mode. The situation that the height of a traditional water baffle is fixed and cannot be automatically adjusted according to the change of the water level, so that when the water level is higher than the water baffle, the water overflows from the top of the water baffle, and equipment and materials are damaged can be avoided, meanwhile, manual intervention can be reduced, the psychological pressure of constructors can be relieved, the working intensity is reduced, and in an emergency, the construction efficiency is improved. And workers can timely evacuate or take corresponding protection measures, so that the safety can be effectively improved.

The invention provides a slope seepage analysis method under a flood discharge atomization condition. The slope seepage analysis method comprises the following steps: S1, acquiring slope pore water pressure data and matrix suction data through a distributed sensor array; s2, the data fusion unit compares the pore water pressure data with a dynamic critical pressure threshold value, compares the matric suction data with a dynamic critical suction threshold value, and generates a seepage analysis trigger instruction when any data exceeds the limit; s3, starting a transient seepage field calculation model by the seepage calculation engine based on the fracture network topology data; s4, generating a slope stability control parameter set according to a seepage pressure distribution diagram output by the transient seepage field calculation model; and S5, the execution system regulates and controls the operation state of the drainage facility according to the slope stability control parameter set. The slope seepage pressure can be reduced, the slope stability is improved, and safe operation of a water conservancy project is guaranteed.

The invention provides a fish gathering system suitable for a high dam, and belongs to the technical field of fish gathering and transporting systems. The fish collecting system comprises a fish collecting channel, a first flow speed control unit, a second flow speed control unit, a fish taking unit and a fish blocking unit. The fish collecting channel is arranged in a river, and a water inlet, a fish taking opening and a fish inlet are sequentially formed in the fish collecting channel in the flowing direction of the river; the first flow speed control unit is arranged close to the fish inlet; the second flow speed control unit is arranged close to the water inlet, and the first flow speed control unit and the second flow speed control unit interact, so that the sightseeing fish enters the fish collecting channel through the fish inlet; the fish blocking unit is arranged in the fish collecting channel, located between the first flow speed control unit and the second flow speed control unit and used for collecting the sightseeing fishes to the position corresponding to the fish taking opening. The fish taking unit is arranged over the fish taking opening and used for hoisting the sightseeing fish in the fish taking opening. The fish collecting system has the effect of conveniently collecting and transferring the sightseeing fishes in the high dam hydropower station.

The utility model relates to the field of water conservancy equipment, and discloses intelligent icing protection equipment for a water conservancy gate, the intelligent icing protection equipment comprises a water conservancy gate frame, a gate plate is arranged in the water conservancy gate frame, two limiting grooves are symmetrically formed in the inner side wall of the water conservancy gate frame, and the side of the gate plate extends into the limiting grooves; an installation plate is fixedly installed on one side of the flashboard, an electric heating piece is started to heat the flashboard, the flashboard is prevented from being frozen to the maximum degree, and if the external temperature continuously drops and the front side of the flashboard is still frozen, an electric push rod will push an ice breaking base and an ice breaking rod to move downwards; according to the device, the intelligent anti-icing effect of the flashboard can be achieved, ice blocks formed in front of the flashboard can be broken through vertical movement of the ice breaking base and the ice breaking rod, and stable operation and normal function exertion of water conservancy facilities in the low-temperature environment are guaranteed.

The present invention discloses a breach rapid plugging device and method based on rocket anchors and polymer composite materials, which relates to the technical field of plugging breaches in water conservancy projects, including broken dike heads on both sides of the breach, and the outer periphery of the broken dike heads on both sides is provided with a wrapping structure, the wrapping structure includes a first line of protection and a second line of protection, the second line of protection is connected to a fixed structure, and the fixed structure is arranged on the broken dike head; an entry and closure structure is arranged between the wrapping structures on both sides, and the two ends of the entry and closure structure are connected to the wrapping structures on both sides. The present invention adopts the above-mentioned breach rapid plugging device and method based on rocket anchors and polymer composite materials, adopts a large geotextile to stabilize the dike head, rocket anchors and polymer geosynthetics to quickly plug the breach, and finally adopts a rubber bag to be filled with water for covering and pressing, which further improves the stability of the wrapping head, and has the advantages of fast plugging speed and high efficiency.