17 results about "Flume" patented technology

The utility model provides a kind of assembly type torrent chute assembly, it is related to torrent chute technical field, including torrent chute body, torrent chute body is set to slope, and water channel is provided in torrent chute body;Baffle is configured as multiple interval settings in water channel, multiple baffles are respectively connected with the bottom wall and side wall of water channel, and pouring groove for pouring concrete is formed between baffle and the bottom wall and side wall of water channel.The utility model sets up interval multiple baffles in water channel, and each baffle is respectively limited with the bottom wall and side wall between water channel to form pouring groove, and the concrete in multiple pouring grooves can form water fall in water channel after solidification, avoid to support formwork in water channel alone and gradually cast-in-place concrete, improve construction efficiency, the connection stability of baffle and torrent chute body is good, improve the structural stability of torrent chute assembly, to prolong the service life of torrent chute assembly.

This invention provides a slope scour simulation test device based on soil particle staining tracers, comprising: an adjustable slope scour section connected downstream of a water supply unit, including a slope flume and a slope adjustment component at its bottom; the slope flume contains, from bottom to top, a concrete layer, transparent test particles, and tracer particles; and a data acquisition and analysis unit for acquiring test data under different working conditions, including test condition data and image sequences of the adjustable slope scour section, identifying and tracking tracer particles of different sizes in the image sequences, and outputting the motion parameters and initiation parameters of the tracer particles. By combining the test condition data under multiple working conditions and the corresponding motion and initiation parameters of the tracer particles, the device quantitatively characterizes the initiation, migration, and deposition mechanism of slope particles under runoff-seepage coupling. This invention can simulate slope scour under runoff-seepage coupling conditions, accurately recording and analyzing the motion behavior of slope particles under different working conditions.

An experimental device and method for measuring a motion probability of nonuniform sediment are provided. The method includes: dyeing sediment of different particle sizes to obtain nonuniform dyed sediment, sticking sediment with the same grades to the bottom of a flume to form a rough plate; soaking the nonuniform dyed sediment, laying the nonuniform dyed sediment on the sediment feeder, transporting the sediment by water with given intensity, and once the flow is stable, starting the sediment feeder to perform a test until the sediment stops moving. Collecting, drying and sieving the sediment in the bedload collector and the suspended load collector, and weighing the dyed sediment of different particle sizes. Computing the incipient probability and the suspension probability respectively by measuring the weight ratios of the sediment of different grades from the two collectors to the initial ones.

This utility model discloses a water measurement and monitoring device for open channels in siltation irrigation areas, belonging to the field of water conservancy equipment technology. It includes a measuring flume body, a siltation detection component, a water volume monitoring unit, and multiple vibration units. The measuring flume body, with a double-layer structure and open ends, is located on the inner wall of the channel, and the width direction of the flume body is consistent with the width direction of the channel. The siltation detection component is located at the top of the measuring flume body, facing towards the bottom of the flume body, and its siltation detection element can reciprocate along the width direction of the flume body. The water volume monitoring unit is arrayed on the inner wall of the measuring flume body for monitoring the channel water level. Multiple vibration units are fixed within the interlayer space of the measuring flume body, with some working end faces of each vibration unit abutting against the inner wall of the measuring flume body on the side closest to the channel. This not only reduces the error in water delivery volume due to the degree of siltation but also improves the accuracy of the measurement data.

A method for monitoring and calculating the rainfall collection effect of transmission towers includes the following steps: constructing a rainfall trough; constructing a diversion trough; constructing a measuring trough; installing a Parshall flume; installing a rigid frame, an ultrasonic probe, and a flow meter; calculating the catchment level; calculating the catchment flow rate; calculating the equivalent rainfall intensity; and calculating the rainfall collection effect. This invention provides a method for monitoring and calculating the rainfall collection effect of transmission towers, capable of calculating equivalent rainfall intensity and rainfall collection effect, filling the gap in the lack of indicators and calculation methods for quantifying the rainwater collection effect of transmission towers.

The application discloses a large water body eutrophication rapid treatment method and a special system thereof, and comprises a harbor type net enclosure captive breeding salvage unit, a water level self-adaptive cutting pump suction unit, a flume self-flow transportation unit and a solid-liquid separation resource unit. The method absorbs pollutants through net enclosure captive breeding purification organisms, and the whole net is dragged to a shore-based still water harbor by a tugboat during salvage. The organisms enter a cutting bin through a water level self-adaptive gate and the net is recovered synchronously. After the organisms are cut and broken into slurry, the slurry is lifted to an overhead flume by a cutter suction pump, and is self-flowed to a solid-liquid separation bin by gravity. Finally, the slurry is dewatered through filter pipe seepage, anaerobic fermentation and enhanced pressure filtration, so as to realize resource utilization of biogas, organic fertilizer and irrigation water. The application has very strong treatment capacity, is ecological friendly, has very low energy consumption and cost, and can rapidly improve the water quality of a large water body from poor V class to I-II class.

This invention discloses a flow calibration device for open channel weirs and flumes based on mechanical control principles, relating to the field of flow meter calibration technology. The device includes an open channel to be tested, connected to an inlet assembly comprising a standard flow meter. The open channel includes a Parshall flume connected to the flow meter under test. The flow meter reads the upstream and downstream water levels within the Parshall flume. A lifting assembly is located downstream of the Parshall flume, comprising a lifting plate that moves up and down. Fluid flows over the lifting plate, controlling the downstream water level. The flow meter, based on the upstream and downstream water levels and preset submerged flow correction data, obtains the corresponding submerged flow rate and compares it with the standard flow rate obtained from the standard flow meter. By controlling the downstream water level, the open channel weirs and flumes flow meter is placed in a set submerged flow state, and the submerged ratio is adjustable, achieving the effect of conveniently calculating the flow indication error of the open channel weirs and flumes flow meter under different flow parameters.

This invention provides a synergistic method for soil-rock and ecological disaster mitigation and flow control resilience in debris flows, comprising the following steps: Step 1: Conducting on-site surveys and parameter collection in the watershed to obtain the topographic features, sediment source distribution, and hydrological information of the debris flow watershed; Step 2: Designing the geometric dimensions of the main structure based on particle size distribution and topographic features; Step 3: Designing the main structure for graded flow mitigation and drainage; Step 4: Identifying the ecological species in the watershed and surrounding environment, and conducting ecological design in conjunction with the main structure configuration; Step 5: Conducting flume physical model tests to calculate the energy dissipation rate and flow control capacity of the main structure configuration method and technology for debris flow disaster mitigation and flow control; Step 6: Based on the test results, constructing a three-dimensional fish-scale flume model, and conducting numerical simulations on debris flow scenarios of different scales, particle sizes, and rainfall conditions to correct and optimize the soil-rock and ecological synergistic configuration mode. This application proposes a synergistic method for rock-soil-ecological disaster mitigation and flow control resilience for debris flows in watersheds. This method can disperse the mainstream impact energy of debris flows to form local backflow, thereby controlling the flow direction of debris flows to avoid buildings and people. It organically combines graded flow mitigation and drainage of rock and soil structures with ecological materials and vegetation measures, thereby improving the adaptive recovery capacity of the resilience control system and the ecological diversity of the watershed, and realizing the sustainable and comprehensive management of debris flows.

The present application relates to a kind of experimental scale underwater topography real-time monitoring and three-dimensional reconstruction method, belong to the technical field of pool and flume model test.It includes: track is laid on the flume and sets water walking platform;Underwater measuring device connects platform, including angle adjustable support, binocular industrial camera, bar laser emitter and lighting equipment;Mobile platform synchronous acquisition laser stripe deformation image sequence;After image enhancement, laser stripe extraction and stereo matching, profile point cloud is generated;Combined with platform displacement, complete underwater three-dimensional topographic map is reconstructed by splicing.The method avoids repeated drainage, realizes continuous monitoring in scouring process, can still efficiently obtain high-precision terrain data under low texture and turbid water body, and has reasonable structure and strong adaptability.

The present application relates to the technical field of hydraulic engineering landscape design, and particularly relates to a canyon short tower cable-stayed flume design method based on landscape optimization and a program product, the method comprising: constructing a parameterized three-dimensional geometric model of the cable-stayed flume; obtaining a qualified model meeting a structural safety standard; fusing the qualified model into a canyon three-dimensional digital scene and obtaining a flume scene rendering image under a preset viewing point; constructing a landscape evaluation index system and quantitatively calculating a landscape comprehensive evaluation index according to the landscape evaluation index system; the present application realizes organic integration of the flume and the canyon landscape, and provides a theoretical basis and a practical design path for landscape-oriented structure design of similar complex topography hydraulic engineering.

This invention discloses a method and positioning fixture for installing a Parshall metering flume in a wastewater treatment plant without interrupting operation and while the flue is running, belonging to the field of wastewater treatment equipment installation and construction. This method solves the problems of high water flow impact, difficulty in underwater millimeter-level positioning, and seal failure during replacement of old flumes under high-flow open channel operation conditions without interrupting operation. The procedure involves: prefabricating a rigid positioning frame with adjustable three-dimensional screws mounted on the crossbeams; suspending the flume in the water, connecting the end of the vertical screws to the lifting lugs on the flume top, and suspending it by the frame for rough positioning; setting up a total station to collect the three-dimensional coordinates of the flume's characteristic points in real time, using measurement and deviation feedback to drive three-axis fine-tuning until the centerline coincides, the throat width deviation is ≤2mm, and the weir crest elevation deviation is ≤2mm; finally, layered composite sealing is performed, with the front seam of the bottom plate sealed with a mixture of wire mesh and waterproof material, and the vertical seams on both sides sealed with expansion sealing strips, and C40 grout is injected in two stages. The installation accuracy and sealing of this method have passed testing, and it is economical and avoids environmental risks.

The present invention relates to a test method for local scour of a monopile composite bucket foundation under realistic wave-current conditions, comprising: acquiring basic data of a target wind farm area; determining a scale ratio and constructing a scaled physical model flume in accordance with similarity criteria; determining parameters of a first bidirectional pump, a second bidirectional pump, and a wave maker by means of adjustment and measurement; excavating a test scour zone, installing a scaled monopile composite bucket foundation, and spreading model sand; and conducting a scour test until scour equilibrium is reached, recording a scour depth and a scour extent, and converting same to prototype-scale values. The present invention allows for effective simulation of the combined action of realistic rotational tidal currents and waves in a sea area, reproducing a scour pattern consistent with the field conditions at the sea area, and thereby enabling accurate determination of the local scour status of the monopile composite bucket foundation under realistic wave-current conditions.

The utility model provides a small weirs groove integration flow measuring device relates to weir technical field, including vertical retaining wall and water guide wall still includes automatic rebound subassembly, automatic rebound subassembly includes the through groove of setting in the water guide wall inside, the through groove is rotationally connected with the rotation column on, the outside fixed connection of rotation column has telescopic link, the outside of telescopic link is equipped with spring, the quantitative water leakage subassembly, the quantitative water leakage subassembly includes the rotation column of fixed connection in vertical retaining wall inside, the outside rotationally connected of rotation column has the water jar, such design has realized the automatic circulation action of water jar, has promoted the stability and continuity of device operation, has reduced the manual intervention demand, avoided the limitation of traditional device experience formula or simple sensing, effectively reduced the measurement error, provides more accurate data support for water resource management.

The utility model discloses a dike simulation scour test water tank device of variable top angle of attack, include: water tank, one end sets up water inlet connection water supply unit, the other end sets up water outlet connection backwater, and the water tank is close to the sand trap of setting the water outlet end on, and the block is set up in the water tank inside, and is located between the water inlet and sand trap, and the side of face A of close water inlet sets up the opening, and has the cavity in, and the model dike is placed in the cavity, the block can rotate in the water tank, with the adjustment water flow top angle of attack, camera, set up in the water tank outside, to shoot the breach process of dike when different water flow top angle of attack. The utility model can solve the problem of the limitation of the existing dike scour test device top angle of attack adjustment, the limitation of observation visual angle misalignment.

This application relates to the field of hydrodynamic characteristic calculation technology, and specifically discloses a method for determining the hydrodynamic characteristics of floating installation of immersed tunnels in inland rivers with high obstruction ratios. The method includes acquiring hydrological characteristic data of the target immersed tunnel project area; constructing a three-dimensional numerical flume based on the hydrological characteristic data; setting the computational domain geometry and boundary conditions in the three-dimensional numerical flume to be the same as the actual size of the target immersed tunnel project area; and performing simulation calculations based on the three-dimensional numerical flume for multiple typical working conditions during the floating installation process of the immersed tunnel to determine the hydrodynamic characteristics under each typical working condition. This application can accurately reveal the flow field distribution, pressure characteristics, streamlines, and vortex evolution laws around the immersed tunnel under high obstruction ratio conditions, providing a reliable theoretical basis and data support for attitude control, construction parameter optimization, and engineering safety assurance during the floating installation process of immersed tunnels in inland rivers.

The utility model discloses a copper water flume of copper smelting belongs to metallurgical technical field, including flume casing, the inside of flume casing is provided with fire clay layer no.