21 results about "Water level rise" patented technology

The invention discloses a comprehensive remote sensing recognition system for hidden danger of ice lake outburst. The system comprises a data acquisition and preprocessing module, an ice lake extraction module, an ice dam stability evaluation module, a risk calculation module and a visualization and early warning module. According to the system, optical images, SAR images, LiDAR point cloud and meteorological data are utilized, firstly, a glacial lake boundary is extracted through a water body index, the area and the volume are calculated, then the water level rising rate is monitored in combination with multi-temporal data, the dam body stability is evaluated by utilizing three-dimensional terrain and deformation parameters, and the dam body stability is evaluated by combining the temperature melting corrosion rate and triggering factors such as rainfall, earthquakes and inflow. And constructing a multi-factor outburst risk index model, and finally carrying out visualization and graded early warning on a result in a GIS platform. The method can achieve the quick, comprehensive and intelligent recognition of the hidden danger of ice lake outburst, has the advantages of being high in monitoring precision, high in automation degree, high in early warning timeliness and the like compared with a traditional single data or experience judgment method, and can be widely applied to the disaster prevention and control work of dense ice lake areas such as the Qinghai-Tibet Plateau and the Himalaya mountain.

The utility model discloses an integrated device for indoor induction of young coral reproduction and larva collection. The integrated device comprises a main body frame, a seawater circulating system and a high-salt titration system, the main body frame adopts a layered structure design, and the space is divided into an upper layer functional area and a lower layer functional area through an isolation frame; the seawater circulating system consists of a circulating water pool, an efficient water pump, an upper water pipe, an induction cylinder, a collecting tank and a lower water pipe; the high-salt titration system is connected with the induction cylinder and is used for accurately regulating and controlling the salinity of the water body. According to the utility model, 1) a modular design is adopted, and functions of temporary culture of coral parent, induction of larva discharge, collection of larvae and the like are integrated into a whole; dynamic adjustment of seawater salinity is achieved through a high-precision salinity titration system, environmental parameters in the induction cylinder can be accurately controlled through cooperation with a temperature control device so as to induce coral larva discharge, an overflow structure is adopted, the water level in the induction cylinder rises, larvae can be collected into a collecting barrel through an overflow opening, and efficient collection of the larvae is achieved.

The present application relates to the field of dam safety monitoring, and relates to a kind of dam multidimensional safety monitoring method based on during flood peak.The method includes according to the water level time series data of each area of dam body, calculates water level rise rate;Extract peak inflow, combined with flood peak retention time and water level rise rate, obtain hydraulic influence coefficient;According to the time series data of each area silt content and inflow time series data, calculate sediment transport rate, combined with silt median particle size, obtain the influence coefficient of incoming sediment;Extract water head fluctuation main frequency and fluctuation amplitude, combined with dam real-time natural frequency and incoming sediment influence coefficient, obtain fluctuation influence coefficient;According to hydraulic influence coefficient and fluctuation influence coefficient, obtain flood peak dynamic influence coefficient;According to the real-time monitoring stress of each area and corresponding design bearing stress, obtain foundation safety margin, combined with flood peak dynamic influence coefficient, obtain actual safety margin;According to the change rate of actual safety margin of each area at continuous multiple time, judge whether to generate early warning information.

This application relates to the technical field of water conservancy facilities and discloses a tidal-powered automatic marine debris collector, which includes a collection bin with an inlet and a drain outlet on the side, the drain outlet being lower than the inlet height; a tidal gate installed at the inlet of the collection bin; a gate movably mounted on the collection bin for opening and closing the drain outlet; and a float connected to the gate, configured to move the gate according to the rise and fall of the external water level. During high tide, the rising external water level opens the tidal gate, exposing the inlet, while the float rises, causing the gate to close the drain outlet. During low tide, the tidal gate closes, while the float descends, causing the gate to open and expose the drain outlet. This application can reduce energy consumption.

To detect water level rise, a pressure sensor, an evaluation unit, a vehicle having such a pressure sensor and evaluation unit, and a method are described below. The detection is based on a pressure sensor having at least one pressure sensing element and a hose element. The hose element is arranged on the housing of the pressure sensor, establishing a fluid connection between the pressure sensing element and the environment of the pressure sensor, particularly the environment of the housing. Furthermore, the pressure sensing element is configured to generate sensor parameters, particularly pressure sensor parameters, based on the rise in water level or surface within the hose element, or to detect changes in these sensor parameters. Specifically, the rising water seals the cross-section of the hose element, causing the water level to compress the air column above it, thereby enabling the detection of the rise by means of a pressure signal.

The invention relates to the technical field of water conservancy facilities, and discloses a tidal power sea floating garbage automatic collector which comprises a collecting barrel, an inlet and a water outlet are formed in the side portion of the collecting barrel, and the water outlet is lower than the inlet; the tide receiving flap valve is mounted at an inlet of the collecting barrel; the gate is movably arranged on the collecting barrel and is used for opening and closing the water outlet; the buoyancy tank is connected with the gate and is configured to drive the gate to move along with the rising and falling of the external water level; when the tide rises, the external water level rises to jack the tide receiving flap valve open, so that the inlet is exposed, and meanwhile, the floating box floats upwards to drive the gate to close the water outlet; and during ebb tide, the tide receiving flap valve is closed, and meanwhile, the floating box descends to drive the gate to be opened so as to expose the water outlet. The energy consumption can be reduced.

The invention discloses a moraine lake outburst susceptibility judgment method and application, and belongs to the field of hydraulic engineering, and the method comprises the following steps: a, measuring basic parameters of a moraine embankment and a moraine lake, and estimating the volume of potential ice rock collapse or landslide mass entering the moraine lake and the surge wave height and surge wave velocity before the surge is spread to the moraine embankment; b, the water level rising height caused by surges is calculated; c, judging whether the water level of the moraine lake exceeds the downstream slope or the overflow channel after surging; d, calculating the shear stress of the surge on the downstream slope or the overflow channel; and e, judging the susceptibility grade of moraine lake outburst based on the judgment result of whether the water level exceeds or not and the shear stress. According to the method, coupling analysis is carried out on the volume of substances entering the lake, excited surge characteristics, dam structure parameters and water level changes for the first time, the limitation that qualitative evaluation is carried out only depending on a single factor or a few factors in the past is broken through, the accuracy of moraine lake outburst susceptibility judgment is greatly improved, and the applicability is enhanced.

The application relates to the field of bubble water level gauges, and particularly discloses a bubble rate adjusting device of a high-precision constant-flow bubble water level gauge, which comprises a shell connected with the underwater end of a gas pipe, a plurality of side holes are arranged in the peripheral wall of the shell, a pressure sensor is connected with a gas path distributor and is electrically connected with a processor, an electromagnetic valve is connected with a gas path constant-flow device and is electrically connected with the processor, a connecting pipe is fixedly connected in the shell and is connected with the gas pipe, a separation cylinder is fixedly connected in the shell, the connecting pipe is located in the separation cylinder, the separation cylinder divides the shell into an inner chamber and an outer chamber, and a passage control mechanism is used for controlling the communication state between the inner chamber and the connecting pipe and between the outer chamber and the inner chamber. The application has the effect that when the water level rises sharply, the inner chamber fails and only the outer chamber normally operates, so that the size of the buffer space is reduced, the system compliance is reduced, and the response delay is shortened.

The utility model discloses a ship bulwark drain hole structure, and relates to the technical field of ships. The ship bulwark drainage hole structure comprises a deck and a bulwark fixedly arranged on the top face of the deck, an air guide mechanism is arranged on the outer wall of the bulwark, and a drainage mechanism is arranged on the inner side of the deck; the drainage mechanism comprises a drainage part and a cleaning part; the drainage mechanism has the technical effects that the drainage mechanism can drain water when water is accumulated above the deck, when the water is accumulated on the deck, the accumulated water can smoothly flow into the water storage frame through the drainage groove and the drainage frame, and the water level rises to enable the water baffle to overcome the resistance of the spring and the damper to slide and drain water; after the water level drops, the water baffle resets to prevent backflow; during drainage, water flow impacts the rotating plate to drive the cleaning brush to automatically clean the inner wall of the drainage frame to prevent adhesion and accumulation of sundries; the baffle in the drainage frame is matched with the stop block, so that seawater backflow can be avoided.

The utility model discloses a portable support for a water quality detection sensor, which comprises a fixing frame, two groups of fixing bolts are mounted on both sides of the fixing frame, and an adjusting mechanism for adjusting the sensor is arranged on the side wall of the fixing frame; the adjusting mechanism comprises a movable frame, the movable frame is arranged on the side wall of the fixed frame, and a sliding block in sliding connection with the movable frame is fixed to one end of the movable frame. The air bag is arranged at the lower end of the movable frame, it can be guaranteed that the movable frame floats on the water surface, when the water level rises, the movable frame can vertically move under the cooperation of the sliding block and the limiting rod, then the sensor can move along with the change of the water level, and the automatic adjusting function is achieved.

The utility model relates to the technical field of ship engineering, and discloses a ship anti-collision alarm mechanism based on radar induction, which comprises a bottom plate, a support rod is fixedly connected to the top of the bottom plate, a moving rod is slidably connected to the inside of the support rod, an anti-flood tide assembly is arranged on the moving rod, a radar body is mounted at the top of the moving rod, and a radar sensor is mounted on the radar body. A fixing assembly is arranged in the radar body, the flood tide prevention assembly comprises a first limiting plate and a buoyancy plate, the first limiting plate is fixedly connected to the bottom of the moving rod, the buoyancy plate is fixedly connected to the outer wall of the moving rod, a first spring is fixedly connected to the bottom of the first limiting plate, and the fixing assembly comprises a rotating shaft. According to the utility model, the height of the radar body is automatically adjusted through the buoyancy plate in the flood tide prevention assembly according to the change of the water level, thereby effectively preventing the radar body from being submerged or damaged by the rise of the water level during flood tide, and ensuring the normal operation of the radar under different water level conditions.

The present application belongs to the technical field of flood prevention early warning monitoring, and relates to a water conservancy hub flood prevention early warning monitoring method based on radar and satellite data. The present application identifies cloud cluster active areas by fusing satellite cloud top brightness temperature and radar echo data, generates multi-level initial early warning signals according to the change trend of the overlapping area, dynamically adjusts the collection frequency according to the early warning level, calculates the rain intensity cumulative amount and water level rising gradient, deduces the dam front water level prediction sequence and extracts the peak value, generates the updated early warning signal in combination with the predicted peak water level, the current water level and the flood control water level relationship, sets the level comparison to adjust the collection frequency, and takes the updated signal as the next round of input to realize closed-loop iteration. The present application solves the problems that the traditional method cannot lock the high-risk area in advance, the monitoring frequency is fixed, the future water level and the early warning level cannot be predicted, and the early warning level frequently switches, and realizes the proactive early warning before the flood, the dynamic optimization of monitoring resources, the advanced water level prediction and the stable update of early warning.

The application discloses a loach breeding net cage and a breeding method thereof, which comprises a net cage body, an anti-escape part is fixedly connected to one side of an opening of the top of the net cage body, at least one adjusting rod is arranged on each of opposite sides of the net cage body, the net cage body is movably arranged at the inner ring part of a floating bed through cooperation of the adjusting rod and a limiting part, and the floating bed is slidably arranged on a plurality of positioning rods. Through cooperation of the floating bed and the positioning rods, the net cage body can float up with the water level rising on the floating bed, so that the net cage body is prevented from being submerged and the loaches in the net cage body are prevented from escaping and causing loss of breeding cost; the lifting distance of the net cage body on the floating bed is controlled through cooperation of the adjusting rod and the limiting part; and meanwhile, through cooperation of the anti-escape part, the loaches in the net cage body are prevented from being captured by birds that prey on fish, so that the breeding effect is improved.

The utility model discloses a macromolecule polyethylene plate rubber fender device which comprises an installation base and a rubber protection plate, two sets of symmetrical lifting sliding grooves are formed in one side of the installation base, limiting blocks are fixedly connected to the upper end and the lower end of the middle of one side of the installation base, and a vertical guide rod is fixedly connected between the two sets of limiting blocks. The vertical guide rods are connected with a lifting plate in a sliding manner; through the arrangement of the buoy and the lifting structure, the height can be automatically adjusted according to the real-time change of the water level in complex water area environments such as seaports obviously affected by tide water or inland wharfs with large water level difference in rainy seasons and dry seasons, and when the water level rises, the buoyancy borne by the buoy is increased; the lifting plate is driven to stably ascend in the lifting sliding groove of the mounting seat along the vertical guide rod; when the water level descends, the floating barrels drive the lifting plate to descend, it is ensured that the side protection device is located at the optimal protection position all the time, protection blind areas caused by water level fluctuation are avoided, and the protection reliability in the complex water level environment is effectively improved.

The invention discloses a self-cleaning mechanism and a seedling raising device. The self-cleaning mechanism comprises a mounting frame, a floating plate, a lead screw nut, a rotating shaft and a scraping piece. The floating plate is slidably arranged in the mounting frame in the vertical direction, and the floating plate is configured to correspondingly ascend and descend on the mounting frame along with ascending and descending of the seawater level; it can be understood that when the water level rises, the floating plate can rise along with the water level, and when the water level falls, the floating plate can fall along with the water level. The lead screw nut is fixedly connected to the mounting frame and located above the floating plate. The axis of the rotating shaft extends in the vertical direction, the rotating shaft rotates around the axis of the rotating shaft to be supported on the floating plate, and the rotating shaft is provided with a lead screw section matched with the lead screw nut to form a screw pair above the floating plate. The scraping part is connected to the lower end of the rotating shaft and located below the floating plate, and the floating plate can ascend and descend on the mounting frame so as to drive the rotating shaft to ascend and descend synchronously and enable the rotating shaft to drive the scraping part to scrape attachments on the bottom face of the floating plate under the constraint of the screw pair.

The invention relates to the technical field of ecological floating islands, in particular to a special ecological floating island for breeding green-head diving ducks in a wetland, which comprises a top plate, the top of the top plate is provided with water leakage holes, a bottom plate is arranged below the top plate, and a ventilation cavity is arranged between the top plate and the bottom plate; the floating block mechanisms are arranged in a circumferential array mode with the central axis of the top plate as the axis, and the floating block mechanisms are rotationally connected with the top plate; a mounting shell is arranged on the top plate, the top end of the base rod is connected with the inner bottom wall of the mounting shell in a sliding and penetrating mode, and an anti-shaking mechanism is arranged on the mounting shell. In the using process, when the water level rises, the floating island floats upwards along with the water level, so that the appropriate height exposed out of the water surface is maintained, the risk that the inhabiting platform is submerged due to the rising water level is effectively avoided, and the safety of top inhabiting organisms is ensured; and a restraining mechanism formed by the base rod and the mounting shell can limit the horizontal displacement of the floating island, so that the floating island is prevented from drifting under the action of stormy waves or water flow, and a breeding and living environment with a stable position is provided for inhabitants.

The utility model relates to the technical field of water resource monitoring, and discloses a buoy prompting device for hydrology and water resource monitoring, which comprises a buoy body and a monitor, the monitor is fixedly installed at the top end of the buoy body, an adjusting assembly is installed on the side wall of the buoy body, and an auxiliary assembly is installed on the side wall of the buoy body. By arranging the adjusting assembly, when a flood tide condition occurs, the water level rises, the water level is prevented from immersing the buoy body, and monitoring is affected, an electric push rod is started at the moment, the movable end of the electric push rod drives a connecting plate and a rack plate to move upwards, a take-up roller is driven to rotate by means of the meshing relation between the rack plate and a cylindrical gear, and therefore a cable is driven to be paid off; the buoy body moves upwards along with the water level, the buoy body is located on the water level all the time, it is avoided that in the flood tide process, water level changes, and monitoring is affected, and the practicability of the device is improved.

The invention belongs to the technical field of flood early warning, discloses a floating ball for early warning and rapid reporting of river flood based on buoyancy, and mainly aims to solve the problem that river hydrological information monitored by existing sensing equipment is not visual and is easily affected. Through the drifting ball placed at a fixed point, the water level floating plate in the ball shell can synchronously ascend or descend along with the water level of the river channel under the buoyancy action of the water surface of the river channel, when the water level rises greatly, the water level floating plate can apply force to the ejection mechanism to eject the sealing end cover on the upper portion of the ball shell, and the sealing end cover falls to the water surface after being ejected; the water-soluble dyeing powder bin located on the inner side of the sealing end cover is dissolved in water, dyeing powder in the water-soluble dyeing powder bin is released, an obvious dyeing area is formed on the water surface, the dyeing powder flows downstream along with a river, a downstream river observation station can be easily recognized through human eyes or corresponding observation equipment, and therefore the water-soluble dyeing powder bin can be used for water-soluble dyeing. And therefore, the flood early warning information can be issued in time.

The 320,000 death toll from tsunamis has not decreased by a single person in the last 14 years. We will provide shelters that will save you even if submerged by a tsunami. [Solution] The tsunami evacuation shelter consists of an underground shelter body 1 that is not subjected to the force of tsunami waves, and a horizontally elongated air tower 2 above ground that can withstand the wave force. It is an open structure with an entrance 3 on the side wall, and a water intake manhole structure that is 10 cm higher than the entrance height. When submerged, water is allowed to overflow, and when the internal pressure and external water pressure become equal, the water level rises to the height of the water intake manhole, creating an airtight space, and the air necessary for survival is compressed and does not escape. The water that flows in and accumulates at the bottom is automatically discharged by a siphon or powered by a submersible pump. Individual modifications are possible to accommodate tsunamis of 20m or more by expanding the shape.

This invention discloses a method and apparatus for calculating the inundation range of spring floods considering river ice conditions. The method includes: generating a frozen zone boundary line based on the river centerline and remote sensing image data of the river during the freezing period; and elevation data of topographic points along the river during the freezing period; constructing a two-dimensional hydrodynamic model of the river based on the elevation data of the topographic points and the frozen zone boundary line, and calculating the inundation range. This invention acquires topographic data under freezing conditions and combines it with remote sensing technology to obtain a large-scale, high-frequency understanding of the river's ice-covered area; it uses a two-dimensional hydrodynamic model for calculation to achieve real-time perception of the spatial distribution of the ice cover, reflecting the dynamic compression effect of ice on the river's cross-section; and it distinguishes between ice-covered and non-ice-covered areas through hydrodynamic model parameters, avoiding large deviations in the model's prediction of water level rise and inundation range, which would otherwise fail to provide reliable support for flood control emergency decision-making.

This invention discloses a safety warning device for water conservancy project construction management, relating to the field of safety protection in water conservancy project construction. The safety warning device is configured in the water area where the water conservancy project is being constructed, forming a physical warning barrier that can dynamically adjust with the water level. The device includes multiple warning floats connected in series, with flexible connectors linking them end-to-end. Each warning float has an anchor cable connected to its bottom, with the end of the anchor cable furthest from the float connected to a counterweight anchor, which is submerged on the bottom of the water. This safety warning device uses a water level sensor to monitor water level changes in real time and controls a miniature winch to automatically retract and extend the anchor cable, ensuring that the warning floats remain floating on the water surface and form a continuous warning line as the water level rises and falls. This solves the problem of traditional fixed warning devices easily becoming submerged or stranded due to water level changes, leading to warning failure.