4207results about "Barrages/weirs" patented technology

To provide a water gate opening / closing system and method of a hydraulic power plant based on an unmanned steering water gate opening / closing machine which enables the water gate opening / closing machine to open / close a water gate and simultaneously and automatically update water gate database, on the basis of the system, and improves operation efficiency, safety and a maintenance management level of a hydraulic power plant.SOLUTION: The system includes a water gate opening / closing machine travel automatic positioning system, a water gate opening / closing machine automatic identification and collision prevention system, a water gate automatic locking system, a beam gripping and swinging prevention and automatic pin insertion system, an image identification system, a water gate position arrival integral determination system, a water gate on-line identification system, and a water gate opening / closing machine safety protection system.SELECTED DRAWING: Figure 1

The invention relates to the technical field of fishways, in particular to a canal fishway structure, construction and design method.The canal fishway structure, construction and design method comprises the following steps that S1, a hub fishway database is established, the swimming capacity of target fishes passing through a fishway is evaluated, and the migration ecological characteristics of the fish passing objects are determined; s2, designing a fishway scheme, and determining a fishway structure preliminary design scheme; s3, designing a fishway engineering local section physical model, and performing a fishway engineering local section physical model test to obtain a pool chamber structure recommendation scheme located at the upstream of the eel way in the vertical seam type fishway; and S4, establishing a fishway overall model, and performing a fishway overall model test to determine a fishway overall structure scheme. According to the design method of the canal fishway, a theoretical basis is provided for arranging an eel fishway suitable for migration of eels and eriocheir hepuensis and a vertical seam type fishway suitable for migration of squaliobarbus curriculus and dace, and then migration channels are provided for the eels, the squaliobarbus curriculus, the sinilabeo, the river perches, the eriocheir hepuensis and the like.

The invention relates to the technical field of water conservancy and hydropower, in particular to a corridor type supersaturated gas quick release device which comprises a concrete bottom plate, a plurality of concrete enclosing walls are arranged on the top face of the concrete bottom plate, and the concrete enclosing walls are sequentially arranged at intervals from inside to outside; a clearance between every two adjacent concrete enclosing walls forms a corridor area; a plurality of water pressure and air pressure damage assemblies are arranged in the innermost circle of concrete enclosing wall, a plurality of energy dissipation bodies are filled in the innermost circle of concrete enclosing wall, and the water pressure and air pressure damage assemblies are distributed on the top face of the concrete bottom plate in an array mode; a water passing hole is formed in each circle of concrete enclosing wall; a plurality of flow limiting plates are arranged in the corridor area at intervals, and flow passing structures are arranged on the flow limiting plates. By the adoption of the structure, multi-flow-state distribution areas such as turbulent flow, backflow and rotational flow can be formed, the medium contact area of supersaturated gas is greatly increased, precipitation of the supersaturated gas is accelerated, and positive significance is achieved for protecting aquatic organisms and fish resources of downstream rivers.

The invention provides a concentric circle filling device and an application method in mass concrete crack control, and belongs to the technical field of hydraulic structures. The concentric circle filling device comprises a pipe body structure, the pipe body structure comprises an outer pipe body and an inner pipe body, the outer pipe body and the inner pipe body are coaxially arranged in a sleeved mode, and an annular area between the outer wall of the inner pipe body and the inner wall of the outer pipe body serves as a first storage space; an inner cavity of the inner tube body serves as a second storage space; the inner tube body is sleeved with an inflatable annular air bag, and when the annular air bag is not inflated, the annular air bag can slide up and down along the inner tube body; after the annular air bag is inflated, one end of the first storage space can be completely sealed and plugged; an air bag ball is arranged in the inner tube body, and after the air bag ball is inflated, one end of the second storage space can be completely sealed and plugged. The method is implemented based on the concentric circle filling device and is applied to mass concrete crack control. Cracks generated by the gate pier can be effectively controlled, and meanwhile the integrity of the structure is improved.

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 reservoir flood control dispatching, and discloses a dam hydraulic opening and closing control method, device and equipment and a storage medium. The method comprises the steps that multi-source hydrological data, weather forecast information and unit operation states of a current reservoir are collected; inputting the multi-source hydrological data and the weather forecast information into a preset hydrological prediction model, and outputting a hydrological prediction result; based on the hydrological prediction result and the real-time reservoir area water level and the unit operation state in the multi-source hydrological data, a gate opening control instruction is generated through a reservoir optimization scheduling model; and a hydraulic opening and closing system is adjusted according to the gate opening control instruction, and the current reservoir flood discharge gate opening is controlled. According to the method, data such as upstream incoming water, reservoir area water level and water consumption are utilized, weather forecast information is combined, a hydrological prediction model is constructed, a reservoir dispatching scheme is optimized according to a hydrological model prediction result, the reservoir area water level and unit operation conditions, and on the premise that flood prevention safety is guaranteed, reservoir dispatching is optimized, the reservoir area water level is automatically adjusted, and power generation benefits are 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.

The invention discloses a closing method of a super-large-span shore control floating body miter gate tide gate, which comprises the following steps: firstly, opening a rotary gate, emptying a medium in a water stop bag, enabling a supporting rod to be in a contraction state, forming an overflowing channel at the bottom of a gate body, and then enabling the gate body to rotate towards the center of a river channel through a balance opening and closing device, and then, the supporting rod extends out to be supported on the gate bottom plate, the water stop bag is inflated to block the overflowing channel, and finally, the rotary gate is closed, so that the closing operation is completed. The tidal gate adopting the gate-in-gate design has the advantages of being stable in structure, flexible to open and close, safe in operation, convenient and fast to overhaul and the like, and the problem of damming and heeling in the opening and closing process of the floating body miter gate is solved.

The invention relates to the technical field of water level monitoring and early warning, in particular to an intelligent reservoir spillway water level monitoring and spillway early warning system, which comprises an anti-interference water level sensing module, an anti-siltation sensing array is arranged on a key section of a spillway, and the key section comprises a curve section and a gate section; the dynamic hydraulic twinning module is used for processing through a lightweight fluid network algorithm on the basis of the water surface transverse slope, the absolute water level and the gate vibration displacement in combination with a hydraulic BIM model; the edge cloud cooperative flow calculation module comprises an edge node and a cloud server; the risk self-adaptive early warning module is used for executing early warning when the calibrated real-time spilling volume breaks through a spilling threshold value; according to the method, the flow calculation error under the high turbulence working condition is remarkably reduced, the accuracy of flood discharge amount calculation is effectively improved, and it is ensured that flood discharge control is more accurate especially under the scene that the curve flow state is complex and the gate opening degree changes remarkably.

A gate linkage control method and device and a parallel water supply and power generation system are provided. The method comprises the following steps of: acquiring current gate opening degree information of the parallel water supply and power generation system and a current water level of a third trunk canal, the current gate opening degree information comprising current first gate opening degree information and current second gate opening degree information; determining a target gate linkage control strategy of the parallel water supply and power generation system according to the current gate opening degree information of the parallel water supply and power generation system and the current water level of the third trunk canal; and controlling a gate opening degree of a target gate according to the target gate linkage control strategy of the parallel water supply and power generation system.

The invention provides a self-adaptive anti-heeling oversize floating gate driving device and method. The self-adaptive anti-heeling oversize floating gate driving device comprises a connecting support arm, a driving system, an anti-heeling system and a rail system. The connecting support arm comprises a triangular truss, the vertex of one side is fixedly connected with the two banks through center spherical hinges, the two vertexes of the other side are hinged to the floating gate through door connecting support hinges, and four sets of pushing sliding blocks are symmetrically arranged on the two sides of the connecting support arm. The driving system comprises a frame, a driving mechanism, an exposed gear and a horizontal guide wheel; a driving system supporting wheel and a horizontal elastic support are arranged at the bottom of the frame; the anti-heeling system comprises a left / right side portal frame, a left / right side oil cylinder and a pushing slide rail; the track system comprises a gear ring, a horizontal guide rail and a supporting wheel track which are distributed in an arc shape with the center spherical hinge as the circle center. Rapid, stable and accurate opening and closing operation of the oversize floating gate under the working conditions of long stroke and large load can be achieved.

The invention discloses a hydropower station ecological flow discharge system and discharge method, the system is applied to a pressure steel pipe diversion type hydropower station, the system comprises a bypass pipe, the inlet end of the bypass pipe is connected with a pressure steel pipe, and the bypass pipe is used for draining water flow in the pressure steel pipe; the water measuring weir is connected with the outlet end of the bypass pipe, and the water measuring weir is used for discharging ecological flow; the monitoring module is arranged on the measuring weir, and the monitoring module is used for monitoring the water level data of the measuring weir; the control valve is arranged on the bypass pipe, and the control valve is used for adjusting the water flow of the bypass pipe according to the analysis result of the water level data so as to control the flow discharge amount of the measuring weir. According to the embodiment of the invention, the ecological flow discharge of the pressure steel pipe diversion type hydropower station can be realized, and the stability and ecological benefits of the ecological flow discharge are improved. The method can be widely applied to the technical field of water conservancy and hydropower.

The invention provides a flow-induced vibration analysis method for a large top-exposed plane gate with high submerging water depth. The flow-induced vibration analysis method comprises the steps that a hydraulic parameter set and a gate structure parameter set corresponding to an ultrahigh submerging ratio submerging outflow working condition are obtained; constructing a three-dimensional fluid-structure interaction numerical model comprising a gate solid domain and a water flow fluid domain based on the hydraulic parameter set and the gate structure parameter set; calculating a pressure pulsation load component and a vortex-induced vibration load component distributed on the surface of the gate through the three-dimensional fluid-solid coupling numerical model; inputting the pressure pulsation load component and the vortex-induced vibration load component into a gate structure dynamics solver for transient response analysis, and outputting a gate vibration displacement distribution map and a key component dynamic stress data set; and generating a flow-induced vibration safety performance evaluation conclusion according to the vibration displacement distribution map and the key component dynamic stress data set. The operation reliability and safety of the large top-exposed plane gate under complex working conditions can be improved.

The invention relates to the technical field of flood discharge gate equipment, in particular to a flood discharge gate equipment operation fault diagnosis method, which comprises the steps of extracting and fusing first target data; analyzing and calculating the extracted and fused first target data, and generating second target data; and inputting the second target data into a historical database for calculation, and verifying the operation state of the gate equipment. The method has the beneficial effects that a multi-source heterogeneous data fusion technology is utilized, various internal parameters such as structural stress, deformation and vibration characteristics as well as hydraulic hoist system pressure, radial gate online vibration monitoring signals and water temperature signals are comprehensively considered, so that the actual operation state of equipment is more comprehensively reflected, the fault diagnosis accuracy is remarkably improved, and the fault diagnosis efficiency is improved. Key parameters during flood discharge of the arc-shaped service gate are monitored in real time, the state change of equipment is quickly responded, and the real-time performance of fault detection is enhanced.

A lifting type lock head water retaining system suitable for rapid water level change mainly comprises a working door, an access door, a working door groove, an access door groove and the like. The working door comprises a working gate which is arranged in the working door groove, and the upper end of the working gate ascends and descends through a lifting device; locking devices are arranged on the left side and the right side of the working gate, a plurality of sets of water retaining locking grooves are formed in the corresponding working gate grooves at intervals in the height direction, and the locking devices and the corresponding water retaining locking grooves are locked or unlocked. The access door comprises a plurality of sections of access stop log doors arranged in the access door groove, and the access stop log doors ascend and descend through an access door hoist; the working gate groove extends downwards by a certain depth along the bottom of the channel, and when the working gate is adjusted to the highest position from the lowest position, the bottom of the working gate is always lower than the bottom of the channel. According to the lifting type lock head water retaining system suitable for rapid change of the water level, the water retaining height is convenient and rapid to adjust, overhaul and maintenance are convenient, and the automation degree is high.

The invention discloses an auxiliary braking device for a vertical lifting type gate, and belongs to the technical field of vertical lifting type gates. The vertical lifting type gate is arranged in the gate groove in a lifting mode, and the auxiliary braking device comprises a hydraulic separating type crane, a hydraulic separating type crane and a hydraulic separating type crane, and the hydraulic separating type crane is configured to be capable of applying transverse pressure to the vertical lifting type gate so that the vertical lifting type gate can abut against and be fixed to the gate groove; the electric pump is connected to the liquid inlet of the hydraulic separation type crane and is configured to supply hydraulic fluid to the liquid inlet of the hydraulic separation type crane by hydraulic pressure; the regulating valve is arranged on a pipeline for connecting a liquid inlet of the hydraulic separating crane and an outlet of the electric pump; the auxiliary braking device is configured to adjust the pressure level of hydraulic fluid in the hydraulic separating type crane by adjusting the opening degree of the adjusting valve so as to adjust the transverse pressure.

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.

The present invention relates to the technical field of water surface waste purification and discloses a waste purification device for the water inlet of a hydropower plant, the structure of which comprises: a frame body, a crushing unit, a conveying unit, and a drive unit, wherein the frame body is adapted to be attached to the water inlet of the hydropower plant; wherein the crushing unit is arranged on the frame body, and the crushing unit comprises a crushing roller and a plurality of cutting blades; wherein the conveying unit comprises a conveyor;wherein the drive unit comprises a drive element and a first transmission element, wherein the drive element is connected to the crushing roller and configured to drive the crushing roller to rotate, wherein the first transmission element is connected between the crushing roller and the conveyor and configured to drive the conveyor. The crushing unit is capable of crushing the waste at the water inlet, the crushed waste can be transported by the conveyor unit to the waste receiving point, and the drive unit is capable of driving the crushing unit and the conveyor unit simultaneously. The waste cleaning device for the water inlet of a hydropower plant according to the embodiments of the present invention can process the waste at the water inlet to prevent damage to the output of the hydropower plant and loss of electrical energy.

The utility model provides a distribution type water gate structure which comprises a plurality of lifting door water gate units arranged under the water surface side by side in the width direction of a river channel, each lifting door water gate unit comprises a water gate base, a buoyancy tank steel gate and inflation and exhaust equipment, a gate bin is arranged on the water gate base, and breast walls in the length direction are arranged on the front side and the rear side of the gate bin; the buoyancy tank steel gate is installed in the gate bin and comprises a gate body and a gate top cap, the gate body is provided with an inner cavity, and a water inlet and outlet hole is formed in the lower portion of the gate body. The inflation and exhaust equipment communicates with an inner cavity of the gate body through an inflation and exhaust hose to adjust the water volume of the inner cavity of the gate body and control lifting of the gate. When no tide or water is blocked, the gate main body sinks until the gate top cap is located at the top end of the breast wall of the gate base; when water or tide needs to be blocked, the buoyancy tank steel gate is inflated and pressurized through the inflation and deflation equipment, the gate gradually ascends to the preset height under the action of buoyancy, and then the tide blocking function is achieved.

The invention relates to the technical field of gates, in particular to a floating gate with a speed regulation function. The technical problems that the opening burden and the water flow impact resistance can be affected by the weight of a gate, the opening and closing weight of an existing gate is inconvenient to adjust when the existing gate is used, the opening burden of the gate is difficult to reduce while the water blocking weight of the gate is kept, water flow enables the gate to vibrate in a gate frame, and the water flow impact resistance of the gate is affected are solved. Therefore, the water blocking effect of the gate is poor. A floating gate with a speed regulation function comprises a door frame, and two insertion holes are formed in the middle of the door frame. The self weight of the gate is increased by sucking water and discharging air when the gate is closed, and the weight is reduced by discharging water and sucking air when the gate is opened, so that the opening and closing weight of the gate is adjusted, the water blocking weight of the gate can be kept while the opening burden of the gate is reduced, and the water blocking effect of the gate is enhanced.

The invention discloses a flood drainage and desilting device for a tailing pond, and belongs to the technical field of mineral engineering. Comprising a desilting platform device, a telescopic sliding device and the like, a full outer frame device comprises a left outer frame and a right outer frame which are the same in structure and symmetrically distributed, the desilting platform device, the telescopic sliding device and a heavy plate intelligent device are installed between the left outer frame and the right outer frame, and the desilting platform device is rotationally connected with the telescopic sliding device above the desilting platform device; the top of the telescopic sliding device is fixedly installed at the top of the front end of the full-outer-frame device, the inlet end of the sundry conveying device is fixedly installed in the middle of the left outer frame, the outlet end of the sundry conveying device is located on the right side of the right outer frame, and the top of the middle heavy plate intelligent device is fixedly installed at the top of the rear end of the full-outer-frame device. Tailings can be filtered while sundries are collected, the collected sundries can be transported to a designated place, manpower and material resources are greatly saved, flood regulation of different degrees can be conducted according to different water levels, the infiltration line of the tailings pond is lowered, and the overall stability of the tailings pond is improved.

The invention relates to a continuous-navigation tide gate chamber constructed on a soft soil foundation and a construction technology of the tide gate chamber. The tide gate chamber comprises a gate chamber bottom plate, a gate, gate piers and prefabricated pile foundations. The precast pile foundation is fixed below the lock chamber bottom plate, the lock chamber bottom plate comprises a bottom sill, and a gate and a gate pier are installed above the lock chamber bottom plate; the gate is positioned between the bottom sills; the gate piers are located on the two sides of the gate. The construction technology of the large-scale floating type steel box door comprises the steps of early-stage calculation, prefabrication of a single prefabricated bottom plate, installation of the prefabricated pile foundation, installation of the lock chamber bottom plate and the gate piers and installation of the gate, the prefabricated pile foundation, the prefabricated formwork and the cast-in-place bottom plate of large-size underwater cast-in-place concrete form an integral structure, and the large-scale floating type steel box door is placed on the lock chamber bottom plate; the cofferdam-free overwater construction is realized, the construction time is shortened, and the cofferdam-free overwater tide gate chamber structure is suitable for constructing tide gates in large estuary regions in a continuous navigation manner.

The invention relates to a multi-element self-balancing driven double-fish type tide-blocking floating body gate which comprises an arch-shaped gate body, the arch-shaped gate body is divided into two fish-shaped arch-shaped structures which are arranged in a bilateral symmetry mode, a plurality of flow passing holes which can be adjusted to be opened and closed are formed in the fish-shaped arch-shaped structures, a floating box is arranged on the fish belly portion of each fish-shaped arch-shaped structure, and the fish tail portion of each fish-shaped arch-shaped structure is provided with a weight. And a fish tail part of the fish-type arch structure is connected with a motor driving device, and the motor driving device transmits power to the fish tail part to rotate, so that the arch door main body is opened and closed. Compared with the prior art, the overflow hole is used for adjusting the water pressure difference and reducing the opening and closing resistance, the buoyancy box and the weight are used for ensuring the axial stability in the opening and closing process, and therefore multi-element dynamic self-balancing of the arch-shaped door at different water levels is achieved by adjusting buoyancy, water inlet and drainage and the weight of the tail end of the fishtail section; comprising weight self-balancing, driving force self-balancing and posture self-balancing, and the opening and closing efficiency, stability and accuracy of the gate can be effectively improved.

The device comprises a cross beam horizontally and fixedly arranged above a rectangular channel section of an aqueduct in the left-right direction, and the portions, on the left side and the right side of a flow guide pier, below the cross beam are each provided with a grating type eddy current damping wave absorbing assembly. A water surface fluctuation monitoring sensor is arranged in front of the cross beam in the aqueduct, a fluctuation signal processor and a PLC are arranged on the cross beam, and the signal output end of the water surface fluctuation monitoring sensor is connected with the signal input end of the PLC through the fluctuation signal processor. The signal output end of the PLC is connected with the signal input end of the grating type eddy current damping wave absorbing assembly. The aqueduct has the following advantages that vertical oscillation of water in the aqueduct is effectively restrained, the vertical amplitude of water surface waves is reduced, and oscillation waves are prevented from splashing out of the aqueduct, so that the effective water cross section of the aqueduct is increased, the flow capacity of the aqueduct is improved, and the aqueduct is safe, low in energy consumption, low in cost and easy to implement.

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 relates to the technical field of hydraulic engineering control, and discloses a hoist opening degree stroke data processing method and system.The hoist opening degree stroke data processing method comprises the steps that in the valve closing process, two sets of real-time data of motor loads and valve displacement are continuously obtained; when continuous lifting exceeding background noise appears in the motor load data for the first time, marking the moment as an initial contact point; starting from the initial contact point, recording two groups of real-time data of motor load and valve displacement at a preset sampling frequency, and calculating a resistance change rate = delta load / delta displacement; the resistance change rate and a preset collision threshold value are compared to control opening and closing, motor load and valve displacement data are monitored in real time, and the resistance change rate is calculated, so that in the valve closing process, the contact point of the valve and a water seal or a foreign matter is accurately recognized, flexible compression and rigid collision are effectively distinguished according to the change trend of the resistance change rate, and the safety of the valve is improved. Misjudgment is avoided, and the safety and reliability of operation of the hoist are improved.

According to the integrated gate position and limit acquisition method and device, linear motion of the gate is converted into rotation of the gears through the accurate transmission ratio between the gears, then tiny displacement changes are amplified or reduced, the sensitivity and accuracy of gate position monitoring are improved, and the problem that a traditional device is not high in precision is solved. The position of the gate is adjusted according to the height and actual requirements of the gate, a traditional gate level meter and a limiting switch are combined to form an integrated device, the transformation ratio gear, the PLC and the resistance strain type linear displacement sensor work cooperatively, all-directional and high-precision monitoring and control over the position of the gate are achieved, and the safety of the gate is improved. The integrated design not only reduces the size and complexity of the device, but also improves the stability and reliability of the device by optimizing the connection and communication among the parts, and in the aspect of installation, the integrated design enables the overall structure of the device to be more compact, and reduces the installation steps and required space.

The invention discloses a cascade power station connectivity fish monitoring method and system, and the method comprises the steps: collecting the water flow speed, water temperature, dissolved oxygen and other hydrological parameters of a water area cross section, the fish activity frequency data, the gate dam opening and closing state, and the pump set operation parameters through a sensing assembly; dividing a potential migration area; abstracting a water area node as a graph theory vertex, abstracting a connected state as an edge weight, and constructing a model to calculate node connectivity; according to the pump set parameters and connectivity indexes, calculating water area node connectivity probabilities under different pump set operation conditions; the number, body type distribution and motion trail of fishes are obtained through an image and acoustic module and are associated and matched with a migration area and a connectivity probability; and integrating multi-link data to generate a connectivity and fish activity relevance monitoring result. Functional units are arranged in all links of the corresponding method of the system, all the units operate cooperatively, cascade power station water area connectivity and fish activity association monitoring precision are improved, and data support is provided for drainage basin ecological protection.

The invention provides a winching type hoist and water level linkage control method and system, a winching type hoist device is adopted, the winching type hoist device comprises a winching mechanism, a braking system, a counterweight system and a gate groove design, a built motor self-adaptive neural network control model is adopted, the braking system is used for controlling the motor self-adaptive neural network through the built motor self-adaptive neural network control model, and the counterweight system is used for controlling the motor self-adaptive neural network control model. Through the motor adaptive neural network control model, motor operation parameters can be adjusted according to real-time data, adaptive adjustment is carried out, a speed regulator fluid mechanics model is constructed in a counterweight system, and gate closing time is deduced according to an output result of the motor adaptive neural network control model. Factors of braking effect of spring pressure, magnetic force generated by electrification of an electromagnet, self weight of the gate, buoyancy and flow velocity of water and friction force between the gate and a gate groove are fully considered, and adjustment of closing time is achieved. Automatic control over accident early warning and gate closing is achieved, controllability and accuracy of closing time are achieved, and the closing time is shortened.

The invention provides a river gate for hydraulic engineering. The river gate based on the water conservancy project comprises a dam body, a cavity is formed in the dam body, the output end of the cavity is fixedly connected with a first motor, and the output end of the first motor is fixedly connected with a rotating shaft. By arranging a first motor, a rotating shaft, a first gear, a second gear, a first guide rod, a first toothed plate, a second toothed plate, a second guide rod, a third toothed plate and a fourth toothed plate, the whole intercepting filter screen frame can synchronously move downwards while the gate body ascends, and therefore floating objects and impurities in water flow are effectively intercepted; and the gate body descends, meanwhile, the intercepting filter screen frame can integrally ascend, so that the intercepting filter screen in the intercepting filter screen frame is prevented from being located in water for a long time, abrasion and corrosion caused by water flow to the intercepting filter screen are reduced, and the service life of the intercepting filter screen is prolonged.