29 results about "Bubble curtain" patented technology

The invention relates to the technical field of data processing, and discloses a hydropower station fish gathering system inlet flow field adaptability optimization method and system. The method comprises the following steps: grading target fishes according to swimming speed and body length, setting a flow velocity adaptation threshold value, monitoring a flow field through an acoustic Doppler current meter, fusing data by using a Kalman filtering algorithm, calculating a fish rheotaxis index, and carrying out matching analysis to evaluate the adaptability of the flow field, according to the evaluation result, the flow guide pier and the microbubble curtain are controlled to conduct multi-stage linkage regulation and control, and a fuzzy PID control algorithm is adopted to achieve self-adaptive flow field control with the fish hydrotaxis index as a feedback signal. The problem that flow field optimization lacks fish behavior response feedback and multi-device coordination control in the prior art is solved, and the biological adaptability and the regulation and control precision of the inlet flow field of the fish gathering system are improved.

The invention discloses a calculation method and application of an underwater random bubble curtain pressure value simulation model. The method comprises the following steps: firstly, establishing a bubble generation model based on random characteristics, and realizing random distribution of bubble positions and sizes through an MATLAB program and a randperm function; then, a fluid and bubble dynamics bidirectional coupling model is constructed, and pressure field association is established by keeping grid sizes consistent; generating a grid by adopting an SALE method, and combining the bubble model, the target plate model and the fluid model through open and import commands; and finally, carrying out numerical calculation by adopting an LS-DYNA solver, iteratively adjusting parameters based on an optimization algorithm, and outputting a pressure value simulation result. According to the method, full-process automatic modeling is realized, the efficiency is improved by more than 50%, million unit-level large-scale calculation is supported, the model precision is high, the universality is high, and the method can be widely applied to simulation analysis and device optimization of underwater noise reduction, antifouling and oxygenation scenes.

The invention relates to the technical field of intelligent automatic grading, in particular to an automatic grading fishing method and system for perches based on living body dynamic perception. The method comprises the following steps: acquiring multi-source perch state sensing data, and based on the multi-source perch state sensing data, performing cross-modal fusion analysis of living body behaviors and physiological appearances according to preset body shape reference parameters to obtain a body shape-stress fusion evaluation information set; based on this, analyzing the matching relationship between the perch body type state, the stress state and the grading fishing target pool, and generating a perch differentiation grading guide strategy set; on the basis, dynamic flow direction regulation and control are carried out through a bubble curtain, the stress perch individuals are drained to the redundant pool, after the stress states of the stress perch individuals are relieved through anti-stress treatment in the redundant pool, secondary flow guide distribution is carried out on the stress perch individuals according to body type evaluation, and a perch automatic grading catching log is output. And the automation level and the sorting accuracy of aquaculture grading fishing are improved.

The invention relates to a multi-layer composite protection and energy dissipation system for an island reef to resist underwater explosion and an installation method. The multi-layer composite protection and energy dissipation system comprises an island reef body; the energy dissipation layer is annularly arranged on the periphery of the sea island reef disc body at intervals of a preset space and comprises an elastic energy absorption part and an energy dispersion framework, the elastic energy absorption part is arranged on the outer side of the energy dissipation layer, and the energy dispersion framework is arranged on the inner side of the energy dissipation layer and fixedly connected with the elastic energy absorption part; the active energy dissipation layer is annularly arranged between the energy dissipation layer and the sea island reef plate body and comprises an early warning system and a plurality of bubble generating devices, the early warning system is associated with the bubble generating devices, and the early warning system is suitable for monitoring underwater explosion signals and triggering the bubble generating devices to release bubbles to form a bubble curtain; the bubble curtain is adapted to dissipate residual energy through the energy dissipation layer. The system has the outstanding characteristics of multi-layer energy absorption, intelligent monitoring and active defense, can be widely applied to protection of the bottom of the sea island reef disc, and effectively resists impact of underwater explosion on the sea island foundation.

Apparatus for generating a uniform bubble curtain in open bodies of water with an irregular bottom, comprising a compressor and an air or gas distributor-controller device, main and secondary feed ducts and a series and staggered arrangement of diffuser duct segments connected to the secondary feed ducts. Bubble curtain generating apparatus for open water bodies of irregular bottom, generating a uniform bubble curtain and comprising: an air or gas compressor, a main feed duct for compressed air or gas connected to the compressor outlet; a distributor-controller device for compressed air or gas connected to the main feed duct, multiple secondary feed ducts connected to the distributor-controller device for compressed air or gas and a series and staggered arrangement of multiple straight and horizontal segments of diffuser duct, fixed at a certain depth above the bottom of the open water body by supports. The diffuser duct segments are independently connected to corresponding secondary feed ducts and have micro-perforations for the release of ascending bubbles of compressed air or gas in the open water body. The compressed air or gas distributor-controller device comprises means for regulating the pressure and flow rate of air or gas of each diffuser duct segment according to the depth at which it is located and its distance relative to the compressed air or gas distributor-controller device.

The invention belongs to the technical field of water outlet equipment, and discloses a water outlet device which is characterized in that a shell is provided with an inner cavity; the water inlet piece is mounted in the inner cavity, and a plurality of water inlet channels are formed in the water inlet piece; the water passing piece is installed in the inner cavity and located on the downstream side of the water inlet piece, a negative pressure cavity is defined between the water inlet piece and the water passing piece, an air inlet cavity is defined between the peripheral wall of the water passing piece and the shell, a plurality of water passing channels, a plurality of air return holes and a plurality of air inlet through holes are formed in the water passing piece, and the water inlet channels and the water passing channels are in one-to-one alignment. The air inlet through holes are distributed in the peripheral side of the area where the water passing channels are located, and at least part of the air return holes are located between the air inlet through holes and the water passing channels. The cutting assembly is installed in the inner cavity and located on the downstream side of the water passing piece. When water pressure fluctuates and water in the negative pressure cavity tries to leak outwards from the air inlet through hole, the bubble curtain can disturb water flow flowing towards the direction of the air inlet through hole in the negative pressure cavity, the resistance to the water flow is increased, and the water is effectively prevented from leaking outwards from the air inlet through hole.

The present application relates to the technical field of wastewater treatment, and particularly relates to a curtain type air floatation machine for industrial wastewater treatment, characterized by comprising a ring-shaped bin, a gas floatation channel is vertically arranged in the ring-shaped bin, the gas floatation channel is used for conveying wastewater downward, and a plurality of flow guide plates are staggered arranged in the gas floatation channel; the wastewater flowing downward and the bubbles floating upward are guided and treated through the plurality of flow guide plates, so that the bubbles can form a bubble curtain at the edge of each flow guide plate, and thus the wastewater can be subjected to air floatation treatment when passing through each flow guide plate, so that the wastewater is subjected to continuous air floatation impurity removal work, the wastewater purification effect is improved, and meanwhile, the bubbles can be fully utilized when passing through each flow guide plate, so that the air floatation effect is improved.

Provided is a floating oil recovery treatment device that can increase the recovery efficiency of floating oil while suppressing the spread of the oil without directly contacting the floating oil. The floating oil recovery treatment device is configured to have a bubble curtain generating mechanism and an injector device (40), generate a bubble curtain into the water using a self-dispersing gas pipe (30) to non-contactingly capture floating oil, and spray high-speed water toward the floating oil layer by the injector device (40) to recover the oil-water mixed fluid in a state in which the recovery ratio of the floating oil is high.

The invention discloses a fish blocking facility testing platform, method and device, a medium and a program product, and belongs to the technical field of automatic testing, and the platform comprises a fish blocking facility module which comprises a bubble curtain module and an electric grid module; the automatic testing module is used for starting at least one fish blocking facility module so as to carry out automatic testing; the data acquisition module is used for acquiring test data in an automatic test process; and the quantitative evaluation module is used for carrying out quantitative evaluation on the fish blocking effect of the opened fish blocking facility module according to the test data. The bubble curtain module and the electric grid module are simultaneously integrated on the fish blocking facility test platform to perform comparison test on the same platform, so that multi-technology synergistic effect research can be realized, the test comprehensiveness of the fish blocking facility is improved, the fish blocking effect of the fish blocking facility is accurately measured, and the use experience of a user is effectively improved.

A water and power generating system is disclosed, comprising at least one renewable energy generator, at least one submerged or floating desalination apparatus configured to be at least partially powered by the renewable energy generator, a controller, a desalinated water output conduit, and an electrical power output. The controller is configured to dynamically adjust the operation of the desalination apparatus in response to variations in available renewable energy and fluctuating demands for desalinated water and electrical power. Also disclosed is a water desalination system comprising a docking platform with a substantially tubular housing, mooring attachments, and ballast for vertical orientation. The docking platform may be connected to multiple floating desalination buoys. The platform may further include electrical and water distribution hubs for interconnection with the buoys and shore-based infrastructure. The desalination buoys may incorporate intake bubble curtain devices and brine dispersal systems to enhance intake quality and manage brine discharge.

The invention provides a fish-sand collaborative filtering experiment device and method for a water turbine, and belongs to the technical field of hydraulic machinery experiments.The fish-sand collaborative filtering experiment device comprises a water turbine model used for simulating the water turbine, a volute of the water turbine model is fixedly welded to a water guide pipe, and the water guide pipe is fixedly welded to the terminal of a water outlet of a fine filtering mechanism; the coarse screening mechanism and the fine filtering mechanism are fixedly connected, the escape channel is formed in the left end of the upstream face of a water inlet of the coarse screening mechanism, the secondary flushing mechanism is fixedly installed above the fine filtering mechanism, the fine filtering mechanism is fixedly installed in an inner limiting groove of the coarse screening mechanism, and the optical fish luring device and the bubble curtain generator are fixedly installed above the escape channel. The optical fish luring device is matched with the bubble curtain generator, and fishes moving on the surface layer are guided to pass through the fish guide gate while sand and stone are intercepted. Sediment interception and fish protection processes can be effectively simulated in a laboratory, key test data are collected, safe and efficient operation of the water turbine is achieved, and ecological damage is reduced.

The present application relates to the technical field of environmental protection equipment, in particular to a kind of domestic waste residual wastewater treatment equipment, including wastewater treatment tower, inlet pipe, overflow pipe, slag discharge channel and exhaust bubble structure, the wastewater treatment tower is vertical, inlet pipe is installed at the top of wastewater treatment tower, overflow pipe is installed at the top of wastewater treatment tower, wastewater enters wastewater treatment tower from inlet pipe and flows downward, then is discharged through overflow pipe;By design, wastewater flows vertically in S shape in wastewater treatment tower, which can conveniently make wastewater pass through bubble curtain formed by the floating bubbles discharged by exhaust bubble structure in horizontal direction multiple times, conveniently make wastewater and bubbles form multiple intersection type air floatation effect, increase the contact time of wastewater and bubbles, improve the adsorption efficiency of bubbles on suspended impurities, and reduce the waste of bubbles.

The invention relates to a sonar system (20) for detecting a bubble curtain of spatially extended, delimited inhomogeneities (22) in the water (22), comprising an active sonar (28) and a signal processing unit (30). The active sonar (28) is designed to emit a waterborne sound signal (32) and to receive waterborne sound with reflections (34) of the emitted waterborne sound signal (32) and to convert the waterborne sound into a corresponding electrical signal (36). The signal processing unit (30) is designed to form a working signal on the basis of the electrical signal (36), to detect reverberation of the emitted waterborne sound signal in the working signal and, on the basis of one or more properties of the reverberation of the inhomogeneities, to detect the inhomogeneities, to sense reverberation of the emitted waterborne sound signal (32) in the working signal and, on the basis of properties of the reverberation, to detect the bubble curtain (22). The active sonar (28) is preferably arranged on the bow or laterally on the watercraft.

A sonar system (20) for detecting a bubble curtain of spatially extended, bounded inhomogeneities (22) in water (22) is disclosed, comprising an active sonar (28) and a signal processing unit (30). The active sonar (28) is configured to emit an underwater acoustic signal (32) and to receive underwater acoustics with reflections (34) of the emitted underwater acoustic signal (32) and convert them into a corresponding electrical signal (36). The signal processing unit (30) is configured to generate a working signal based on the electrical signal (36), to detect a reverberation of the emitted underwater acoustic signal in the working signal, and, based on one or more properties of the reverberation of the inhomogeneities, to detect the inhomogeneities, to detect a reverberation of the emitted underwater acoustic signal (32) in the working signal, and, based on properties of the reverberation, to detect the bubble curtain (22).The active sonar (28) is preferably located on the bow or on the side of the watercraft.

The invention provides a bubble curtain device based on gas pressure feedback, which comprises a gas distribution pipe with one end of a closed structure, the other end of the gas distribution pipe is connected with a gas pump through a gas delivery pipe, and a plurality of flow control units are mounted on the gas distribution pipe along the length extension direction; the flow control unit comprises a body, a plurality of first hole channels are formed in the body, the first ends of the first hole channels extend to the top end of the body, the second ends of the first hole channels penetrate through the side wall of an inner cavity of the body, an elastic unit is fixedly installed at the top of the inner cavity, and a sliding block installed in the inner cavity in a sliding mode is arranged below the elastic unit. The sliding block is of a cylindrical structure with a cover plate at the top, and a plurality of air guide grooves matched with the first hole channels to work are formed in the side wall of the sliding block. According to the invention, flow deviation caused by pressure fluctuation at different positions on the gas distribution pipe is effectively compensated, so that the flow of gas discharged by each flow control unit is approximately constant.

The utility model relates to the technical field of water conservancy projects, and discloses an underwater bubble curtain sediment intercepting device which comprises a fixing plate, the top wall of the fixing plate is fixedly connected with an air compressor, a flow meter is fixedly installed on the left side of the bottom of the air compressor, and the bottom end of the flow meter is communicated with a conveying pipe. The rear end of the conveying pipe is fixedly connected with a valve, the rear end of the valve communicates with a connecting pipe, the rear end of the connecting pipe communicates with a connecting shell, the top wall of the connecting shell communicates with a plurality of spraying pipes at equal intervals, the bottom of the connecting shell is fixedly connected with a base, and the left side and the right side of the top of the base are each provided with a limiting assembly. According to the utility model, high-pressure airflow passes through a plurality of spray pipes to output bubbles, so that the bubbles which are continuously released can change a surrounding flow field, vertical circulation is formed on two sides of a bubble curtain by continuous aeration, silt is limited on one side of muddy water under the action of the circulation, and further ship navigation is prevented from being hindered.

The application discloses a facility for assisting anadromous fishes to enter a fishway inlet and a method thereof, relates to the technical field of fish passing facilities, and is a technology for smoothly guiding fishes to enter a fishway inlet in a wide range. The facility for assisting anadromous fishes to enter a fishway inlet comprises a plurality of fan ring units, an air compressor, a control center, fixed piles and a flow regulating unit, the fan ring units are gradually enlarged one by one in a radial manner from the fishway inlet to the downstream of a river, and each fan ring unit is composed of a fan ring, a fish attracting device, a sensor and a bubble curtain device. The bubble curtain device is arranged along the outer side of the fan ring, the air compressor is connected with the bubble curtain device through a pipeline, and the control center is in communication connection with the fish attracting device, the sensor, the bubble curtain device and the air compressor. The application has the advantages of comprehensively attracting fishes by sound and light, is favorable for long-distance discovery of anadromous fishes and smooth arrival of the fishes at the fishway inlet, and has important significance for protecting fish resources and promoting water ecological civilization construction.

The application belongs to the technical field of fish blocking bubble curtain device, and particularly relates to a fish blocking bubble curtain generating device, which comprises a bubble curtain device, the bubble curtain device comprises a fish blocking display curtain and a top plate one, a waterproof function box is fixedly installed at the bottom of the fish blocking display curtain, a plurality of transparent partitions are fixedly installed in the fish blocking display curtain, a component groove is formed in the inner top of the waterproof function box, an oxygen pipe one and a waterproof strip are installed in the component groove, a plurality of stroboscopic lamps are fixedly installed on the upper side of the waterproof strip, a plurality of groups of ascending bubbles are formed in the fish blocking display curtain by oxygen, due to the visual setting of the fish blocking display curtain, fish and other organisms can visually observe the ascending bubbles in the fish blocking display curtain, and the purpose of blocking fish from entering the water intake is achieved, meanwhile, the stroboscopic lamps are electrified to generate effects, emit light flashes according to the frequency, and drive fish away through the change of light intensity or light color in a short time, so that the fish are prevented from entering the water intake position.

The utility model relates to the technical field of sea area culture, in particular to a ship-shaped net cage with a bubble curtain, which comprises a ship-shaped main body and a net cage main body fixed on the side edge of the ship-shaped main body, a rotating impeller group is arranged below the ship-shaped main body, and the rotating impeller group is used for absorbing tidal energy in the circumferential direction of the rotating impeller group. A bubble curtain assembly is arranged between the ship-shaped main body and the net cage main body and comprises an air compressor, an air supply pipeline and a bubble generation straight pipe which are arranged on the ship-shaped main body, one end of the air supply pipeline is connected with the output end of the air compressor, and the other end of the air supply pipeline is communicated with the bubble generation straight pipe; a plurality of air holes are formed in the bubble generating straight pipe, and sound insulation plates are arranged on the two sides of the bubble generating straight pipe respectively and fixed to the ship-shaped body. According to the structure, the bubble curtain is additionally arranged to form a sound insulation structure, noise frightening suffered by fish schools is reduced, the growth environment of the fish schools can be remarkably improved, and therefore the growth speed and the health level of the fish schools are improved.

The invention relates to an integrated system for recycling offshore micro-plastics and marine litter. The integrated system comprises an air compression and transmission system, a bubble curtain generation system, a sea surface litter collection system and a floating type litter collection system, the bubble curtain generating system is arranged at the offshore sea bottom, the air compression and gas transmission system is connected with the bubble curtain generating system, the sea surface garbage collecting system is arranged on the offshore sea surface, the floating garbage collecting system is arranged in the offshore sea in a suspended mode, and air in the air compression and gas transmission system enters the bubble curtain generating system to form bubbles to be discharged. The seabed micro-plastics and the garbage escape under the action of the bubbles and respectively flow to the sea surface garbage collection system and the floating type garbage collection system; the invention aims to solve the problem that the effectiveness and the recovery efficiency of marine litter recovery are affected as an existing marine litter recovery device can only perform litter recovery on a single water layer.

This application relates to the field of underwater environmental protection, and in particular to a method for underwater blasting environmental protection. It includes sequentially deploying a bubble curtain and an antifouling curtain around a predetermined blasting zone; placing a package containing a water treatment flocculant within the blasting zone or in the water immediately above it; linking the release trigger condition to the blasting operation; and implementing underwater blasting to trigger the release of the flocculant, allowing it to mix with suspended sediment. The bubble curtain weakens the shock wave and, in conjunction with the antifouling curtain, hinders sediment diffusion, while the flocculant promotes the settling of suspended solids. The application also describes the flocculant composition, packaging material and placement method, the formation and fixing method of the bubble curtain and antifouling curtain, their placement distance, and the steps of monitoring water turbidity and replenishing flocculant. This application achieves the technical effects of weakening underwater shock waves, hindering the diffusion of suspended sediment, accelerating the settling of fine suspended solids, and realizing rapid water purification after blasting.

The invention provides an underwater multi-form controllable bubble curtain generating device. The underwater multi-form controllable bubble curtain generating device comprises a shell, an air compressor, an air storage tank, a drying filter, a variable adjusting module, a multi-path air path distribution unit, a plurality of annular air hole groups, a closed-loop control unit, a motion control module, an electric driving device, a plurality of A-shaped connecting brackets and an external motion track. According to the underwater multi-form controllable bubble curtain generation device provided by the invention, bubbles of different sizes can be generated through a plurality of annular-belt-shaped air hole groups with different hole depth-to-diameter ratios, diversified rigid body bubble mixed wrapping forms are formed, the multi-path independent variable adjusting module is matched with the closed-loop control unit, crosstalk-free ventilation volume proportion adjustment is carried out, and the bubble curtain generation efficiency is improved. Accurate air supply control is achieved, and the bubble density requirements of different areas are met.

The utility model provides a kind of offshore construction noise reduction sound insulation device, belong to offshore wind power engineering technical field, comprising: pile stabilizing platform, it includes multiple stand and multiple crossbeam being connected between adjacent two stand;Annular rubber sound shield is connected in one side of pile stabilizing platform by first connecting component;Bubble tube is connected in the downside of annular rubber sound shield by second connecting component, and bubble tube is encircled in the circumference of annular rubber sound shield;Multiple air outlets are equipped on bubble tube at intervals;And air compressor, being communicated with bubble tube, for filling compressed air into bubble tube inside.The utility model passes through the double sound insulation and noise reduction effect of bubble curtain generated by annular rubber sound shield and bubble tube, can greatly reduce the noise decibel generated when wind power pile installation construction, effectively protect marine life, while can guarantee that offshore wind power construction is carried out smoothly.

The invention provides an underwater bubble curtain pipeline which can be applied to the technical field of underwater bubble curtain blocking, and the underwater bubble curtain pipeline comprises a pipeline body, and a plurality of air outlet holes which are non-uniformly distributed in the length direction of the pipeline body are formed in the pipe wall of the pipeline body; wherein the opening parameters of the plurality of air outlets are configured as follows: under the air supply condition that one end of the pipeline body is connected with a constant air source and the other end of the pipeline body is closed, the opening parameters are determined on the basis of air flow difference caused by underwater depth change and pipeline on-way pressure loss; the opening parameters comprise hole pitch and / or single-hole air outlet area, so that the air outlet flow of each unit-length pipe section in the length direction of the pipeline body reaches a preset target flow value. The invention further provides a design method, a design device and equipment of the underwater bubble curtain pipeline.

The invention belongs to the technical field of underwater engineering protection, and particularly provides a self-adaptive stable flow control bubble curtain device, system and method for preventing explosion impact of a gravity dam. The device comprises an air distribution pipe, a plurality of air outlet holes are formed in the pipe wall of the air distribution pipe, and a pressure sensitive device is installed at the air outlet holes and comprises a shell; a cavity allowing the sliding block to slide is formed in the shell, an air inlet is formed in one end of the shell, a flow channel is formed in the other end of the shell, one side of the cavity is connected with at least one set of air outlet flow channels, an elastic gasket is arranged between the sliding block and the flow channel, an air channel is formed in the sliding block, and a plurality of exhaust ports communicated with the air channel are formed in the side wall of the sliding block. And the exhaust port is partially overlapped with the gas inlet end of the flow channel, and the pressure sensitive device forms a gas passage. The flow area of each air outlet hole can be dynamically adjusted according to the air pressure in the pipe, automatic balance of airflow output is achieved, the mechanical one-way non-return function is achieved, and backward flowing of water flow is fundamentally prevented.

The invention relates to the technical field of ocean engineering, in particular to a submarine cable mounting support which comprises a support module, a cable penetrates through the support module, and an energy collection and storage module, an intelligent sensing and decision module, a power execution and actuation module and a bubble curtain generation and output module are arranged in the support module. The cable is temporarily lifted by generating a bubble curtain, dynamic non-contact between the cable and the support is achieved, the possibility of frictional wear is thoroughly eliminated from the physical level, the core pain point in the field is solved, the environmental energy, namely ocean current, is ingeniously utilized as system driving force, external power supply or frequent floating charging is not needed, and the system is simple in structure and convenient to use. Real energy self-consistent and long-term maintenance-free operation is achieved, intelligent judgment based on vibration / acoustic emission signals is adopted, the crossing from'action when ocean current exists' to'action only when abrasion exists' is achieved, the gas source utilization efficiency is greatly improved, invalid action and energy waste are avoided, and the maintenance period is remarkably prolonged.

The invention discloses a bubble barrier induced submarine pipeline spilled oil gas recovery device and a using method. The recovery device comprises a submarine oil gas conveying pipeline, a first submarine air pipeline, a second submarine air pipeline, a first connecting frame, a second connecting frame and an air conveying pipeline. The first seabed air pipeline and the second seabed air pipeline are symmetrically arranged on the two sides of the seabed oil and gas conveying pipeline and fixedly connected through the first connecting frame and the second connecting frame. One end of the air conveying pipeline is connected with the ocean platform air compression device, and the other end is communicated with the first seabed air pipeline and the second seabed air pipeline; when the submarine oil and gas conveying pipeline leaks, air is conveyed to the submarine air pipeline through the air conveying pipeline, a bubble barrier is formed to prevent spilled oil and spilled gas from diffusing, and centralized recovery is achieved; the anti-diffusion wave-absorbing device integrates anti-diffusion and wave-absorbing functions, and can effectively reduce marine pollution and resource waste.