11 results about "Sediment flow" patented technology

The application provides a water level regulation method and system for a water conservancy hub. The method includes the following steps: collecting data by underwater robots and satellite remote sensing data simultaneously, constructing a sediment deposition space-time atlas containing a deposition gradient, and periodically correcting the space-time atlas. A radar array is deployed in the curved section of the spillway, and a multi-frequency pulse signal is used to analyze the three-dimensional sediment flow velocity field vector distribution. Through the correlation analysis of the dynamic coupling of the deposition gradient and the flow velocity field, the correlation area of the flow velocity mutation and the sediment deposition is accurately identified, and a constraint condition set containing coordinate positioning and flow-silt matching rules is established. Combined with real-time water level monitoring data, the constraint condition set is used to calculate and generate a dynamic adjustment parameter sequence of the spillway gate opening, and the water level is accurately regulated. The technical scheme provided by the application can accurately regulate the water level of the water conservancy hub by intelligently optimizing the spillway parameters, effectively alleviate the sediment deposition problem in the high-sediment water area, and ensure the safe operation and flood control efficiency of the hub.

The application belongs to the technical field of hydrological test, and discloses a sediment flow monitoring device for hydrological test, which comprises a sediment meter, a bottom plate, a stand, a sliding frame, a float, a connecting rod and a mounting plate. The sediment meter is arranged on the bottom surface of the mounting plate. The top of the sliding frame is provided with two connecting plates. The top surfaces of the connecting plates are provided with two vertical plates at intervals. Two rotating holes are formed in the two vertical plates. A rotating shaft is rotatably arranged in the two rotating holes. A roller is fixedly arranged on the rotating shaft. The roller surface is in contact with the surface of the adjacent stand. The two vertical plates are provided with external thread pipes on the sides away from each other. Rubber damping pipes are arranged in the external thread pipes. The inner ring of the rubber damping pipe is matched with the rotating shaft. The float drives the sliding frame and the sediment meter to lift. When the roller and the rotating shaft are lifted and rotated, the rubber damping pipe applies damping force to the rotating shaft, so that the rotating speed of the rotating shaft and the roller is prevented from being too fast, thereby limiting the lifting speed of the float and the lifting frame under the action of waves and preventing the sediment meter from being damaged by oscillation.

The utility model belongs to the technical field of hot galvanizing, and particularly relates to a pickling tank. The utility model provides a pre-pickling tank for hot galvanizing, which comprises a tank body provided with a liquid inlet end and a liquid outlet end; the flow guide plate is mounted on the bottom surface of the tank body, and the top surface of the flow guide plate is an inclined surface inclining downwards from the liquid inlet end to the liquid discharge end; the sediment temporary storage structure is arranged at the liquid discharge end and is provided with a spherical sewage inlet and a sewage outlet, the spherical sewage inlet faces the interior of the tank body and is communicated with the interior of the tank body, and the sewage outlet faces the exterior of the tank body; wherein the sediment flows from the liquid inlet end to the liquid discharge end along with liquid along the flow guide plate, so that the sediment enters the sediment temporary storage structure from the spherical sewage inlet, and the sewage outlet is configured to be opened to discharge the temporarily stored sediment; according to the pickling tank, the sediment temporary storage structure and the flow guide plate are arranged, so that the effect of cleaning sediment while the pickling tank operates is realized, the working pause of the pickling tank is avoided, and the pickling efficiency is improved.

The utility model discloses an automatic sediment flow monitoring device which comprises a floating disc, a guide sleeve, a threaded rod, a protective frame, a sediment meter, a worm gear, a worm and a rotating handle. According to the sediment flow monitoring device, a guide sleeve is fixedly connected to the middle of a floating disc in a penetrating mode, a threaded rod matched with the guide sleeve slidably penetrates through the guide sleeve, a protection frame is fixedly connected to the bottom end of the threaded rod, a sediment meter is fixedly installed on the inner side of the bottom of the protection frame, a threaded sleeve is rotationally connected to the top face of the guide sleeve, and a worm wheel is fixedly connected to the outer side of the threaded sleeve; a worm in meshing transmission with the worm gear is arranged on the outer side of the worm gear, the worm is rotationally installed on the top face of a floating disc, the end of the worm is fixedly connected with a rotating handle, and the sand measuring instrument is installed in a floating mode through the floating disc, so that the floating disc is always kept in the state of floating on the water surface in the water level rising and falling process; the sand meter is always kept in the water body directly along with floating of the floating disc, additional operation is not needed, and monitoring is more convenient.

The invention discloses a device and a method for researching the matching characteristic of sediment fluidization phase change and slurry-making suction and discharge, and relates to the technical field of water conservancy projects. The desilting test research method comprises the following steps: setting a target test working condition; adding silt and water into the test water tank; adjusting water supply flow, slurry pumping flow, reamer rotating speed and reamer position; starting a desilting assembly to carry out multi-dimensional disturbance desilting treatment of scouring, slurry pumping and stirring on deposits in the test water tank, and collecting image data at the same time; detecting slurry concentration data and sediment concentration data; closing the dredging assembly; the data is derived for analysis. According to the desilting test research device and method for the sediment fluidization phase change and slurry making suction and discharge matching characteristic under the multi-dimensional disturbance effect, the desilting slurry making and suction and discharge process under the multi-dimensional disturbance conditions of different angles, different heights and different flow speeds can be simulated so as to conduct desilting test research, rapid setting of different research working conditions is achieved, and the desilting efficiency is improved. Operation is simple, practical and convenient.

The embodiment of the invention provides a riverbed terrain determination method and device, equipment, a medium and a product, and relates to the technical field of riverbed evolution and deposition simulation. According to the method, river data, sediment data and physical data are obtained, in the process of traversing a target time step, the target flow velocity related to the water level is calculated according to the river data, and then the target sediment flow is calculated in combination with the physical data, the target flow velocity and the sediment data. Then performing riverbed form evolution based on the target sediment flow to obtain a riverbed profile of a target node in the time step, and finally traversing all the time steps and integrating the riverbed profiles of all the time steps to obtain a riverbed terrain in a target time period. In the whole process, calculation related to water flow dynamics, calculation related to sediment transportation and evolution of the riverbed terrain form coherent closed-loop iteration, the situation of interaction lag caused by relative independence of all physical processes is avoided, and the technical problem that in the prior art, the riverbed terrain determination efficiency is low is solved.

The application discloses a rock pipe-jacking self-suction pipe bottom sediment cleaning device and a cleaning method, which comprises a total sediment cleaning pipe, a pump station and a sediment deposition tank which are sequentially connected, and a controller. At least one pipe joint is arranged on the total sediment cleaning pipe, and the pipe joint is connected with a sediment cleaning branch pipe, so that the total sediment cleaning pipe and the sediment cleaning branch pipe are communicated. A valve and a first solid flowmeter are arranged on the sediment cleaning branch pipe, the valve is used for controlling opening and closing of the sediment cleaning branch pipe, and the first solid flowmeter is used for monitoring sediment flow in the sediment cleaning branch pipe. The pump station comprises a self-suction pump and a second solid flowmeter, is used for sucking the pipe bottom sediment of the sediment cleaning branch pipe into the sediment cleaning branch pipe and recycling the pipe bottom sediment through the sediment deposition tank, and the second solid flowmeter is used for monitoring the sediment flow in the pump station. The controller is electrically connected with the valve, the first solid flowmeter and the second solid flowmeter. The application monitors the whole sediment cleaning process through the controller, adjusts the valve opening degree according to real-time data of the first solid flowmeter and the second solid flowmeter, improves the sediment cleaning efficiency, reduces the personnel demand on the construction site, and improves the construction safety and efficiency.

The present invention relates to a barrier plate support device that allows barrier plates installed to block water or sediment flowing in due to floods, heavy rain, or landslides to be connected to each other, as well as to support the barrier plates to maintain an upright state. By equipping this device with various convenience and safety functions, the invention relates to a barrier plate support device that can be applied in various fields, such as a support for a no-entry sign to control the entry of people or vehicles into dangerous areas like road sinkholes or cliffs, as well as in the aforementioned situations, and a support for a fence installed to protect facilities and property.

The invention discloses a sediment flow state path determination method suitable for a high-sediment-content river channel. The method comprises the steps that S1, the riverbed terrain, flow velocity and flow direction data and water surface suspended sediment concentration distribution of the high-sediment-content river channel are obtained; s2, a three-dimensional fluid dynamic model is imported, a high-sediment-content river sediment transportation numerical model is constructed, and the sediment transportation process is simulated; s3, dividing different diffusion areas of sediment according to the sediment transportation numerical model; s4, according to the divided areas, obtaining a sediment flow main path, and establishing a function relationship among the main path swing amplitude, the flow, the water level and the riverbed roughness; and S5, predicting the main path of the sediment flow under the flood of different frequencies, changing the local terrain of the river channel according to a prediction result, and regulating and controlling the sediment flow state of the high-sediment-content river channel. According to the method, breakthrough is realized in concentration description, region division and prediction precision, and a more efficient and reliable technical means is provided for regulation and control of river sediment transportation.

This utility model relates to the technical field of soil and water conservation equipment, and discloses a centrifugal drying device for soil and water conservation simulation experiments. It includes a base, a weight detection element, a shell, a rotating drum, a receiving container, an air supply mechanism, a heating mechanism, and a rotation drive mechanism. The weight detection element is mounted on the base; the shell is mounted on the weight detection element and has a liquid outlet and an air outlet; the rotating drum is rotatably installed inside the shell, and its wall has a first through hole; multiple receiving containers are arranged circumferentially inside the rotating drum, and their side walls have second through holes; the receiving containers are used to receive sediment flowing from the guide channel; the air supply mechanism includes a nozzle located inside the rotating drum; the heating mechanism is located inside the rotating drum and is used to heat the gas supplied to the nozzle; the rotation drive mechanism is located inside the shell and is connected to the rotating drum to drive its rotation. This utility model can improve the efficiency of sediment treatment and shorten the time required after soil and water conservation simulation experiments.

The present application relates to a dam simulation test platform stability analysis method under the combined action of multiple loads, comprising: modeling the steel cable used for the test platform binding fixation, analyzing the stress-strain of the steel cable; obtaining the stability boundary conditions of the structural members of the dam simulation test platform through analysis; analyzing the stability of the structural members of the test platform under large temperature difference conditions; analyzing the stability of the dam simulation test platform under the action of wind load; analyzing the load of the dam simulation test platform under the impact of sediment flow; analyzing the stress-strain of the dam simulation test platform under the combined load, and judging the stability of the dam simulation test platform. The present application calculates the sediment flow impact, wind load and snow load of the dam simulation test platform, analyzes the stress field and strain distribution of the dam simulation test platform under the combined load, judges the stability of the dam simulation test platform, and ensures the structural safety and stability of the test platform under extreme weather conditions.