56 results about "Sediment flow" patented technology

The invention discloses a hydrate sediment flow solid output measuring device combining an X-CT technology and a measuring method. The measuring device comprises an X-ray penetration type reaction kettle, an X-CT scanning analysis system, a vacuum system, a temperature and pressure control system, a hydrate sample preparation system, a sand production monitoring system and a permeability measuringsystem, wherein through integrated application of a sand production-seepage system under the micro-scale multi-factor coupling effect, the coupling relationship of a reservoir structure and physicalspace-time evolution and flow solid output under the multi-factor collaborative action can be quantitatively described, different hydrate generation modes can be selected according to the experiment requirements, different hydrate occurrence states in natural sediments can be simulated and studied, and the device and the method can be used for researching the space-time evolution characteristics of a sediment pore structure under the hydrate convergence and divergence and effective stress conditions and an influence rule of the space-time evolution characteristics on sediment flow solid output, so that the theoretical bottleneck of the hydrate reservoir structure and a physical evolution and flow solid output mechanism in a hydrate production process is broken through, and the device and the method have important engineering significance to deeply understand a depressurizing production law of the South China Sea, practically improve the biogas production efficiency and perfect a depressurizing production technology system.

The invention discloses a transverse distribution lamella purifier and a settling pond with the same. The transverse distribution lamella purifier is formed by arranging multiple settling modules. Each settling module comprises a guide plate, a plurality of wing plates arranged in a flow direction of fluid, a first flow baffle and a second flow baffle, wherein the first flow baffle and the second flow baffle are arranged in the front and rear of the guide plate respectively. The inlet end of each wing plate is connected with the corresponding first flow baffle, and the outlet end of each wing plate is connected with the corresponding second flow baffle. The wing plates include first and second wing plates divided along the flow direction of the fluid, the first wing plates disposed inside the settling modules are used for guiding sediment, and the second wing plates projecting out of the settling modules are used for guiding the fluid. A sediment flow passage is formed between one side of each first wing plate, close to the corresponding guide plate, and the corresponding guide plate, and the wing plates are inclined so that the sediment can flow into the passages easily. Compared with the existing settling pond having the same size, the settling tank has the advantages that purifying efficiency is more than tripled, production cost is reduced greatly, and purifying efficiency is improved significantly.

An underwater seeding apparatus which comprises a first longitudinal member, a second longitudinal member and a cross member. The first longitudinal member is positioned in a parallel relationship to the second longitudinal member and the cross member is attached to the first and second longitudinal members to define a substantially U-shaped frame. At least one thine is attached to the cross-member. The tine opens a furrow in an underwater sediment flow when the apparatus travels along the floor. Means for distributing a seed matrix in the furrow and means for closing the furrow are attached to the apparatus.

The invention provides a lakeside zone ecological improvement technology capable of eliminating waves and promoting sediment deposition. Based on the synthesis of existing related technologies for lakeside zone ecological restoration, in terms of the characteristics of a lakeside zone, a bottom material is improved, the flow rate of a water flow is reduced, and the basic environment conditions of growing and breeding large-scale aquatic higher plants are enlarged; main components used for ecological improvement comprise an underwater sand blocking bank arranged on the lakeside zone and a bamboo raft floating bed arranged at the head region of the lakeside zone; the underwater sand blocking bank is mainly used for blocking a bed load sediment flowing in a lakebed to reduce the flow rate of the bed load sediment and realize quicker settling of the sediment; the bamboo raft floating bed is mainly used for playing roles in eliminating waves, promoting siltation and protecting the sand blocking bank. By designing the combination of the underwater sand blocking bank and the bamboo raft floating bed of the underwater sank blocking bank, the flow rate of the water flow can be reduced, the sediment deposition is promoted, the aquatic higher plants can favorably root for survival, a physical environment which is beneficial for sediment deposition and algae capture and enables nutrient elements such as nitrogen and phosphorus to be accumulated and purified is established, and thus a lakeside zone ecological system is better stabilized to realize the purpose of water quality improvement.

The invention discloses a sand grain and liquid filtering device for a sand excavating ship. The device comprises a bottom support base plate and a columnar hollow shell, wherein an electromotor mounting shell is fixed, through a bolt, at the center of the upper surface of the bottom support base plate; an electromotor is mounted inside the electromotor mounting shell; support legs are mounted onboth sides of the upper surface of the bottom support base plate. Working based on the object gravity and the spiral feeding principle, the device disclosed by the invention can perform effective andpersistent filtration on sediment and liquid; with a conical sewage dispersing mechanism, the device can protect the electromotor at the bottom and automatically disperse the falling liquid under theeffect of centrifugal force through quick rotation so as to improve the practicability; moreover, with a pressure type sediment flow control mechanism, the device enables the sediment to flow normallyonly when the rated pressure is reached, then the sewage in the sediment is compressed and discharged, and thus the filtering effect is improved.

The invention relates to a silt stopping and discharging technology and a construction method for separating debris flow by adopting dynamic silt stopping reservoir capacity and aims at providing thesilt stopping and discharging technology and the construction method with convenience in construction, safety and reliability for separating debris flow by adopting the dynamic silt stopping reservoircapacity. The technical scheme adopted by the invention is that the silt stopping and discharging technology is characterized in that a water retaining dam is arranged at a proper position of a debris flow gully so as to form a debris flow silt stopping reservoir capacity on the upstream of the debris flow gully; at the initial stage of separating debris flow, debris flow solid substances are deposited in the debris flow silt stopping reservoir capacity and are separated into flood or sandy water which is safely discharged by a draining channel; after the debris flow silt stopping reservoir capacity is deposited into a gentle swale by multi-time debris flow, the flow rate of the debris flow is rapidly reduced by means of a wide reservoir surface and a gentle deposited surface gradient, sothat the debris flow loses power for coercing rock blocks; and the rock blocks are basically deposited at an inlet of a reservoir, part of small-medium particles are carried into the reservoir, and fine particles and sediment flow into, are deposited into the swale before the water retaining dam and are separated into the flood or the sandy water at an inlet of the draining channel.

The invention discloses a cleaning device for a pile bottom sediment of a cast-in-place concrete pile. The device includes a drilling machine, a pressure water pump, and a sediment cleaning device; the drilling machine is used for driving a drill rod into a concrete pile body, and the drill rod is installed in sections; the pressure water pump is connected into the drilling machine through a waterpipe and communicates with the drill rod; and the sediment cleaning device includes a core pipe and a hole cleaning device, the top end of the core pipe is connected to the drill rod, a screwed jointof the top end of the hole cleaning device is screwed to the bottom end of the core pipe, a hollow pipe body is disposed on the hole cleaning device, the bottom end of the hollow pipe body is provided with a hole, and the hole cleaning device communicates with the drill rod. The device can pulverize the sediment at the bottom of the pile, the sediment is driven in by employing high-pressure circulating water from the drilling machine, flows from the drill rod into a core pipe connector, and discharges from the water outlets at both ends of a drain pipe, a sediment layer is flushed, and the sediment flows out of the concrete pile body together with water along a gap of the outer edge of the drill rod. The device is simple in structure, is convenient to operate, and is good in effect.

The invention relates to a system for restoring an oyster reef and an ecological restoration method of the oyster reef. The system for restoring the oyster reef comprises a plant barrier zone, a physical barrier zone and an artificial reef body which are sequentially arranged on a coastal bank slope in the extending direction from the land to the sea, halophyte is planted in the plant barrier zone, the physical barrier zone is provided with a barrier piece, and the barrier piece is used for physically preventing bank slope silt from flowing into the artificial reef body. The ecological restoration method comprises the step of constructing the system for restoring the oyster reef on the coastal bank slope, wherein the bottom surface of the plant barrier zone is lower than the average high tide line, the physical barrier zone is arranged in anintertidal zone, and the artificial reef body is arranged in a subtidal zone. The plant barrier zone and the physical barrier zone can intercept bank slope sediment, and sediment deposition is prevented from affecting growth of oysters in the artificial reef body; and the stepped laying mode of the artificial reef body has an excellent wind and wave resisting effect, and therefore the oyster reef can be effectively and stably restored through the system and method.

The invention provides a high vertical grid type offshore wind power foundation anti-scouring system and method. The high vertical grid type offshore wind power foundation anti-scouring system comprises a plurality of grids, wherein each grid is vertically fixed between two stand columns, the multiple grids are connected end to end and form a grid type structure around a offshore wind power foundation, each grid is rectangular, and two reinforcing connecting ribs are arranged on the diagonal line of each grid. According to the high vertical grid type offshore wind power foundation anti-scouring system, the flow speed of water flow is reduced through the grids, sediment close to the bottom layer of a seabed is blocked from flowing, and the foundation anti-scouring purpose is achieved; through the grid diagonal reinforcing connecting ribs, the connecting rigidity of a grid system is increased, and the situation that the system is scoured and collapsed by the water flow is avoided; through the grid type structure, the flow blocking strength of the grids is further enhanced, and the all-around basic anti-scouring effect can be provided in the ocean current environment with changeable flow directions.

The invention provides a bioretention belt sand basin easy to desilt. The bioretention belt sand basin comprises an outer shell, an inner shell, a cover plate and a mesh bearing plate; the inner shellis detachably embedded in the outer shell in a conformal mode, and the bottom of the inner shell is of an inclined structure; the bottom, corresponding to a water inlet end, of the inner shell is lower than the bottom, corresponding to a water outlet end, of the inner shell, and the cover plate is hinged to the outer shell and covers the water outlet end of the inner shell; and a water outlet hole is formed in the cover plate and the side wall of the water outlet end of the inner shell, the mesh bearing plate is disposed at the outer shell and covers the water inlet end of the inner shell, and the mesh bearing plate is provided with water filtering particles. Sediment in rainwater on urban roads can be effectively precipitated, so that the sediment flowing into a bioretention zone is effectively reduced; and the deposited sediment can be conveniently removed, so that the maintenance cost is effectively reduced and the use is facilitated.

The invention relates to a water and soil conservation monitoring method based on an image interpretation technology, and belongs to the technical field of water and soil conservation supervision. Whether a hydropower station has water and soil loss or not is judged according to the reservoir level, the hydropower station reservoir coastal contour image and the hydropower station reservoir coastal detail image in sequence, and silt deposited at the bottom of the hydropower station reservoir is discharged through a sand-washing gate at the bottom of the hydropower station reservoir, so that a large amount of silt is prevented from flowing into the bottom of the deposition reservoir due to water and soil loss, therefore, the downstream does not become a dangerous overground river, and the accident rate of the reservoir is greatly reduced; and the water and soil loss problem of the hydropower station is fundamentally solved for a long time through water and soil conservation measures.

The Invention is an underground storage tank apparatus and method. A buried underground storage tank has a tank sump and a manway defined by a manhole skirt side wall communicating from the surface of the ground to the tank sump. A sediment trap is disposed annularly within the manway and intercepts water and sediment flowing down the manhole skirt wall. An inside wall of the sediment trap is in an annular spaced-apart relation with a tank sump perimeter watt, which together define an annular space interior volume that receives water that overtops the sediment trap inside wall and which receives liquid that overtops the tank sump perimeter wall.

The invention provides an anti-scouring system and method for an offshore wind power foundation of a multi-layer grid strip-shaped structure. The anti-scouring system for the offshore wind power foundation of the multi-layer grid strip-shaped structure comprises a plurality of grid strips, wherein each grid belt comprises a plurality of grid layers, each grid layer is composed of a plurality of grid units, each grid unit is formed by surrounding a plurality of grids, and each grid is vertically fixed between two stand columns through a connecting device. According to the anti-scouring system for the offshore wind power foundation of the multi-layer grid strip-shaped structure, the flow speed of water flow is reduced through the grids, sediment close to the bottom layer of a seabed is retarded from flowing, and finally the foundation anti-scouring purpose is achieved; through the multi-layer grid structure, the flow blocking rigidity of the grids is enhanced, and a basic anti-scouring effect can be provided under the ocean current environment with changeable flow directions; through the arrangement of the multiple grid belts, the anti-scouring effect of the underwater foundation is further enhanced.

The invention discloses a data processing method for a dredging and conveying system on a long-distance pipeline conveying site, wherein data comprises flow velocity data, pressure data and concentration data, and the flow velocity data and the pressure data are obtained through an existing method. The method is characterized by comprising the following steps: selecting a starting point of the whole conveying pipeline as a monitoring point, obtaining a sediment fluid flow velocity value of the monitoring point, regarding the sediment fluid flow velocity value as a common flow velocity value of the whole downstream pipeline (including a to-be-measured target pipe section) at the same moment, a concentration value at the monitoring point, deducing the concentration distribution of the whole conveying pipeline at any time according to the concentration values of the monitoring point along with the time change, matching the pressure difference of the target pipe section, and constructing a data set; cleaning the data set; and taking the data set as two-dimensional spatial data, sorting, grouping and averaging according to the size of the data set, and weakening the data centrality. According to the invention, the data set processed by the method has representativeness and authenticity, and reliable engineering data is provided for subsequent research.

The invention discloses an automatic monitoring device for waterlogging prevention hydrological information. The automatic monitoring device comprises a concrete circular truncated cone, a sediment flow detection box, an air bag, a control frame and a warning box, wherein a steel column is connected into the concrete circular truncated cone in an embedded mode, the sediment flow detection box is installed on the surface of the steel column in a penetrating mode, and a transverse rod is installed on the surface of the steel column in a sliding mode through a groove strip. A connecting rod is welded to the bottom of the transverse rod, an air bag is installed at the bottom of the connecting rod in a sealed mode through a plastic plate, a monitoring frame is installed at the bottom of the other end of the transverse rod, a warning box is installed on the surface of the steel column, a baffle is installed on the top wall in the steel column, and a supporting plate is installed on the inner wall of the steel column. A stop block is installed at the top of the supporting plate, and an electric telescopic rod is installed at the bottom of the supporting plate. By arranging the warning box, water level emergency signals with different emergency degrees can be released outwards through the warning lamps with different colors inside the warning box, and people can conveniently take corresponding prevention and emergency measures in time.

The invention provides an urban road rainstorm runoff sediment filtering device, which includes a water passing system and a sediment collection system; the water passing system includes a number of water passing pools connected end to end according to the direction of water flow for water to flow through, and each water passing pool has a water supply The water inlet for inflow, the water outlet for the water in the water tank to flow out, and the sand leakage hole connected with the sediment collection system; The sand guide pipe used to transport the sediment settled in each water tank to the sand collection tank. Due to the adoption of the above technical scheme, the present invention has the advantages of reasonable structure and good sedimentation effect, which greatly reduces the sediment that finally flows into the bioretention system and reduces the risk of the bioretention system being blocked; it is not necessary to wait for the entire filter device to salvage the sediment. It can only be carried out when the work is stopped, and the sediment can be salvaged at any time; it is very convenient to clean the sediment, saving time and effort.

The invention relates to the technical field of riverway construction, in particular to a deep pool and shoal for improving the ecological environment of a riverway and a deep pool and shoal construction method thereof.The deep pool and shoal construction method comprises the riverway, a shoal and a deep pool are arranged in the riverway, a shoal generation device and a deep pool generation device are arranged on the two sides of the riverway, and a connecting component is arranged on one side of the shoal generation device; the shoal generating device and the deep pool generating device are arranged on the river channel, so that an accumulation part is arranged on the front side of the shoal generating device, and a guide plate is arranged on the upper side of the shoal generating device, and sediment flowing at the bottom of the river is in contact with the guide plate; the sediment can move downwards to be gathered and can be prevented from being washed away by water flow, the effect that the sediment is accumulated at a fixed position is achieved, then after the shoal generating device is moved away, the accumulated sediment can form a shoal, the water flow speed is increased, paving of the gravels at the river bottom is matched with the water flow, water jump can be generated in the water body, and the oxygen content of the water body is increased.