441 results about "Spillway" patented technology

Fluidic multiwell bioreactors are provided as a microphysiological platform for in vitro investigation of multi-organ crosstalks for an extended period of time of at least weeks and months. The disclosed platform is featured with one or more improvements over existing bioreactors, including on-board pumping for pneumatically driven fluid flow, a redesigned spillway for self-leveling from source to sink, a non-contact built-in fluid level sensing device, precise control on fluid flow profile and partitioning, and facile reconfigurations such as daisy chaining and multilayer stacking. The platform supports the culture of multiple organs in a microphysiological, interacted systems, suitable for a wide range of biomedical applications including systemic toxicity studies and physiology-based pharmacokinetic and pharmacodynamic predictions. A process to fabricate the disclosed bioreactors is also provided.

The invention discloses an overflow dam with dam face cantilever sills for current diversion and energy dissipation. The tank bottom of an energy dissipation tank is connected to the rear part of an overflow slop of the overflow dam. A protection side wall of the energy dissipation tank is connected to the rear part of a side wall of the overflow slope. A plurality of gate piers used for dividing a fluid flow-by area into a plurality spillway are arranged on the dam top of the overflow dam. The overflow slope of the overflow dam is provided with a plurality of current diversion cantilever sills distributed in a spaced manner, so that one part of water current coming from the spillways flows through the upper sill surfaces of the cantilever sills and enters the rear area of the energy dissipation tank in a form of cantilever current while the other part of water current flows into the front area of the energy dissipation tank through flow channels between each two cantilever sills and achieves energy dissipation through dispersion of the water current entering the energy dissipation tank. The energy dissipation mode provided by the invention is totally different from those in the prior art and is distinct in energy dissipation effect.

A flood discharge and power generation energy dissipation hydropower station comprises a flood discharge and power generation energy dissipation system, a diversion type conventional power generation system, a conventional spillway and unconventional spillways. The flood discharge and power generation energy dissipation system is arranged inside the conventional spillway. The middle of a conventional flow dam section is a diversion way of the flood discharge and power generation energy dissipation system. The flood discharge and power generation energy dissipation system sequentially comprises a water inlet, a drainage way, a pressure pipeline, a water turbine and a draft tube from top to bottom. A plant is arranged outside the water turbine. The conventional spillway is arranged at the top of the drainage way. The unconventional spillways are arranged at the two ends of the conventional spillway and are lower than the conventional spillway. The design thought that the flood discharge and power generation energy dissipation system and the diversion type conventional power generation system are separated is adopted, a part of surface outlet discharged flow of a overflow dam section serves as a water taking opening of the flood discharge and power generation energy dissipation system, the discharged flow passes through the drainage way, the pressure pipeline and the like and enters the special type water turbine in the plant to generate power so as to produce benefits, the effects of dissipating energy and avoiding flood discharge atomization are achieved, and no adverse influence is produced on a prior diversion type conventional power generation system.

A low-head impulse jet waterwheel for power generation at irrigation canal drop structures and navigation dam spillways achieves renewable electric power generation that has been lost until now due to lack of suitable equipment to convert such energy at competitive cost. Conventional practice has limited use of impulse turbines to heads of more than 50 meters or about 150 feet. However, there is now no need for such a limitation. Kinetic energy of a low-pressure jet is employed in a way that enables numerous locations to generate electricity conveniently near points of use, from a renewable source at minimum cost. The equipment can be pre-assembled for minimum installation cost at sites with no existing impoundment and can be automatically raised clear of flood levels with built-in lifting equipment. Existing multi-span bridges offer convenient access for installation and maintenance. Raising the equipment also provides clear passage for fish migration.

Downflow catalytic reactor having a plurality of catalyst beds in which a mixture of gas and liquid are passed, the region in between subsequent catalyst beds being provided with a distributor system for the distribution and mixing of gas and liquid prior to contact with a subsequent catalyst bed, said region comprising: (a) gas injection line arranged below a catalyst support tray, (b) collector tray adapted to receive gas and liquid, (c) spillway collectors extending above the level of said collecting tray, (d) mixing chamber adapted to receive the gas and liquid descending from said spillway collectors, (e) impingement plate below said mixing chamber, (f) first distributor tray arranged below said impingement plate having a number of apertures throughout and a number chimneys, and (g) second distributor tray arranged below said first distributor tray for the redistribution of gas and liquid prior to contact with the subsequent catalyst bed, wherein the at least one chimney is provided with a distributor device that is able to divide the chimney chamber into at least two chambers.

The invention discloses a pre-reservoir series system of purification for non-point source pollution in small watershed agriculture of hilly and mountainous areas. The system comprises a series of small-size pre-reservoir units in series, wherein each pre-reservoir unit mainly comprises four parts: (1) an ecological reservoir and a spillway sluice: by building a water retaining dam to construct the ecological reservoir used fro storing water for dry seasons, retaining for rain seasons and settling sediments and suspended solids in runoff; (2) a setting pond for removing particulate matters and sediments to protect the aquatic vegetation of the pre-reservoir area to a certain degree; (3) flood discharge ditches (ecological ditches and flood discharge pipes) for preventing flood from damaging the pre-reservoir from the front and from the side when heavy rain falls; and (4) a pre-reservoir area: the aquatic vegetation with strong adaptive capacity under stress conditions, good purification effect, and developed root system for recovering the water level. The invention provides a technical reference for non-point source pollution control in small watershed agriculture of extremely difficult hilly and mountainous area, and has the advantages of simple construction, strong pertinence, harmony between the flood discharge and purification, etc.

A hydroelectric power plant for use in flowing bodies of water is described which includes a new spillway canal constructed to enhance the flow of water by increasing the water pressure. Because the canal has the angled feature on both ends, the water flow can be enhanced when backflow conditions exist as well as when primary flow conditions are present. In addition the canal utilizes a unique combination of both traditional and Pelton type water wheels to convert the water pressure to electric power. The canal, the extensions and both types of water wheels are also adjustable in nature to maximize the amount of power obtainable from any given body of water.

The invention relates to general hydraulic engineering, in particular to a silting reduction system for a heavily silt-carrying river reservoir. The IPC numbers are E02B1 / 00 and E02B9 / 02. According to the system, a silt-blocking submerged dike is constructed in the reservoir, the reservoir is divided into a clean water reservoir area and a muddy water reservoir area, a silt conveying culvert is utilized for efficiently draining silt-carrying flow in the distance of the upstream of the dike out of the reservoir, the aims of water storage and silt discharging are achieved at the same time, and the rainfall washing distance of the reservoir is enlarged; fine-particle silt turned and overflowed to the area, in front of the dike, of the reservoir through the silt-blocking submerged dike is discharged out of the reservoir through a dike tunnel spillway in a submerged silt pump reservoir desilting mode; according to a wide, shallow and bent silting form occurring on a reservoir area riverway, a reservoir area straight river channel facilitating density flow transport is built in a submerged silt pump dredging mode, and the natural desilting effect of the reservoir is improved. The system is applicable to heavily silt-carrying river reservoir construction and silting waste reservoir reconstructed projects.

A conduit attachment apparatus is secured to an open end of a conduit for holding cables or wires. In one embodiment the conduit attachment apparatus comprises a spillway and a securement collar. The spillway is adapted to provide bend radius control to cables or wires extending out of the conduit. The securement collar is adapted to secure and remove the spillway from the conduit. In another embodiment, the securement collar can be installed without the use of tools and can rotate up to approximately 180° about the spillway.

A female urinary device including a urine stream collection container having a discharge opening and a stream collection opening, the stream collection opening being configured to surround and isolate a urethral opening, an internal baffle that cooperates with at least a urine sample container to provide a spillway to the discharge opening, where the spillway provides urine passage to a collection tank, and a probe configured for interior engagement with a vaginal opening for placement of the stream collection opening relative to the urethra opening.

The invention discloses a household water saving system and a water saving method thereof, and mainly solves a problem of severe average household water resource waste. The household water saving system comprises a washing facility, a header tank connected with a water outlet of the washing facility and a stool water tank connected with the header tank. The header tank comprises the following components: a first water inlet, which is connected with the water outlet of the washing facility and on an upper part of the header tank; a spillway, which communicates a floor drain and is on an upper part of the header tank and lower than the first water inlet; a water outlet, which is connected with the stool water tank, arranged on a lower part of the header tank and provided with a drainage device pumping water outside. The household water saving system of the invention utilizes the header tank to collect washing waste water discharged from the washing facility, and utilizes the washing waste water to flush the stool, so as to use household waste water by multiple times and save domestic water resource effectively.

An apparatus and process for depositing slurry upon a moving forming web. The apparatus includes a pivotally mounted headbox for depositing slurry from the inner bottom surface of the headbox down an inclined spillway as a continuous curtain onto a moving web. The headbox is mounted transverse to the direction of travel of the moving web. The headbox also has vertical edge boards, including a headbox back edge board and two opposed headbox side edgeboards, on three respective sides of the headbox to prevent slurry from spilling over the sides and back of the headbox. The headbox is supplied with slurry from a slurry mixer by a feed line mounted on a reciprocating trolley which moves, transverse to the direction of travel of the moving web, back and forth along the length of the headbox.

The invention relates to a method for reducing heavily silt-carrying river reservoir deposition, and belongs to the field of water conservancy. The IPC of the method is E02B1 / 00 and E02B9 / 02. According to the method, a sand blocking ground sill is built in a reservoir, the reservoir is divided into a clean water reservoir area and a muddy water reservoir area, distant silt carrying flow on the upstream of a dam is efficiently drained out of the reservoir through sand transporting culverts, the targets of reservoir filling and desilting are achieved, and the reservoir rainfall scouring distance is enlarged. Fine particle sediment overflowing to the reservoir area before the dam from the sand blocking ground sill is discharged out of the reservoir through dam flood discharging tunnel spillways in a submersible sand pumping pump reservoir desilting mode. The wide, shallow and bent deposition forms in the reservoir areas are shaped in a submersible sand pumping pump dredging mode, reservoir area straight river channels of density flow transporting are facilitated, and the natural desilting effect of the reservoirs is improved. The method is used in heavily silt-carrying river reservoir building and deposition waste reservoir reconstruction projects.

The invention discloses a whole section aeration method of a flood discharging tunnel. The bottom part of a free flow flood discharging tunnel is provided with a backward step and a ventilation shaft, which form bottom cavity aeration, based on which a lateral deflector is respectively arranged at side walls on two sides of the upstream of aeration backward step, therefore, an aeration side cavity is formed and the whole section aeration is further formed at the aeration backward step. The deflector inside the flood discharging tunnel with the whole section aeration structure designed according the method is a wedge deflector. Since the whole section aeration changes the former simplex method of bottom cavity aeration and guarantees the necessary aeration quantity when the flood discharging tunnel in normal operation, thus eliminating large-area fresh water flooding district at the side walls of the flood discharging tunnel and effectively avoiding the cavitation eroding damage of the side walls.

One exemplary embodiment can be a process for contacting one or more fluids in a vessel. The process may include passing one or more fluids into a chamber from an overhead tray and providing a conduit outside the chamber coupling a respective spillway to a respective hole for increasing contact time inside the conduit. Typically, the chamber forms one or more sidewalls forming at least one hole and the overhead tray forms at least one spillway.

A low-head impulse jet water turbine for electric power generation at irrigation canal drop structures, navigation dam spillways or other low head watercourses achieves renewable electric power generation at competitive cost. Kinetic energy of a low-pressure jet is employed in a way that enables numerous locations to generate electricity conveniently near points of use, from a renewable source at minimum cost. The equipment can be pre-assembled for minimum installation cost at sites with no existing impoundment and can be automatically raised clear of flood levels with built-in lifting equipment. Existing multi-span bridges offer convenient access for installation and maintenance. The system for raising the equipment also provides clear passage for fish migration.

The invention relates to a clamping sediment sampler. A structure that a sampling tube is inserted in or separated from a sampling head is finished by matching a spring and an inclined clamping block which are arranged on the sampling head with the step plane of the outside diameter of the sampling tube. Due to the design that the inside diameter of the sampling tube is the same as the diameter of a spillway hole, and a valve cover can freely float up and down, the spillway hole is ensured to be automatically started and closed, and a water-soil interface is not disturbed when samples are collected. A plurality of connecting rods are used, are mutually spliced, and are fixed by a slide sleeve for being applicable to different water depths, and the strike of a movable heavy hammer can collect deeper sediment samples.

One exemplary embodiment can be a process for contacting one or more fluids in a vessel. The process may include passing one or more fluids into a chamber from an overhead tray and providing a conduit outside the chamber coupling a respective spillway to a respective hole for increasing contact time inside the conduit. Typically, the chamber forms one or more sidewalls forming at least one hole and the overhead tray forms at least one spillway.

A packaged wastewater treatment unit has a compact configuration into which all subcomponents may be integrally molded. The compactness of the unit results from the arrangement of the subcomponents within the unit. In one embodiment, a clarifying unit and a basin into which a biological digester is mounted are formed within the top surface of a tank. The interior of the tank contains a collecting compartment separated from a secondary compartment by a baffle. In another embodiment, the housing of a disinfecting unit, such as an ultraviolet or chlorination unit, is also formed within the top surface of the packaged system.A method for treating wastewater includes using a single integrated unit to feed an effluent stream to a collection tank and then transport it to a biological digester, clarifying unit, and disinfecting unit. The effluent stream may be transported through the unit by a series of pumps and spillways. Optionally, the output stream may also be subjected to a sand filtration unit.

A hydroelectric system comprising a support member, a rotational torque converter, a drive member being disposed at one end of a support arm, a water driven mechanism in rotational communication with the drive member, wherein the support arm can be pivotally adjusted by a retraction mechanism are disclosed. A spillway deflector comprising a spillway deflector wedge, a deflector anchor, and a flat portion extending between the deflector anchor and the deflector wedge are disclosed.

The invention discloses a river bank-like flood spillway which comprises a control section, a discharge chute and a stilling pool. A gate pier of the control section is prolongated towards the lower reach of the river to form a central pier in the discharge chute. A wide tail pier capable of enabling the water flows to form contracting jet flows is arranged at the tail end of the central pier. The wide tail pier enables the discharged water flows of the flood spillway to form longitudinally spread platy jet flows which scatter in the air and are mixed with air and then enter the stilling pool to form ternary hydraulic jump energy dissipation. The wide tail pier is X-shaped or Y-shaped. According to the invention, the X-shaped or Y-shaped wide tail pier is arranged in the flood spillway, so not only can the energy be sufficiently dissipated, and can flood discharge atomization be reduced, but also the length of the stilling pool can be shortened, and the work amount and the project investment can be reduced. The water surface at the lower reaches is smooth and the scouring is slight. The river bank-like flood spillway has the beneficial effects that the damage and influences to the ecological environment as well as to side slopes in a nodal region are alleviated, and the construction difficulty is reduced. Therefore, the river bank-like flood spillway gains good social and economic benefits.

The invention discloses a coal block jigger, a coal selection system and a coal selection method, which belongs to coal jigging selection field and is more particularly suitable for select coal blocks. The coal block jigger of the invention is formed by multiplying the inclined angle of a filter board of the existing multi-section jigger and changing a overflow spillway into a clean coal outlet passage; the coal selection system of the coal block jigger comprises the coal block jig, a rock refuse bucket elevator, a middling bucket elevator, a clean coal bucket elevator, a recycling water bucket, a recycling water pump, a water supply device and so on; and the coal selection of the coal block jigger can one-time select rock refuse, middlings, clean coal and a plurality of other products, and the water supply amount in selection is small. By adopting the invention to select coal blocks, processing amount can be increased, a great deal of water can be saved, washing and cleaning cost can be lowered, system steps can be simplified and system overall investment is reduced, thus achieving the effect that can not be achieved by the existing multi-section jigger. The invention is a brand new coal blocks selection jigger, a coal selection system and a coal selection method, which can be used for selecting steam coal and can also substitute dense medium vertical wheelers and inclined wheelers for coal block selection.

The invention relates to a reservoir group outlet structure failure assessment method based on the Bayesian network. The reservoir group outlet structure failure assessment method includes the steps of establishing a Bayesian network topological structure, determining respective probability, calculating spillway system failure probability, and calculating the integral failure probability. The Bayesian network for failure probability determination is combined with a conventional event tree for determining stepped reservoir group spillway facility failure, and calculating the probability of downstream control step failure caused by upstream dam bursting flood is added as needed to form a complete Bayesian spillway facility failure assessment network. A reservoir group outlet structure failure is a complex multivariable system, and the assessment system can be used to analyze common cause failure and conduct backward inference. The assessment system can scientifically determine the value of information and determine whether new information needs to be acquired, so that the outlet structure failure analysis is gradually improved and becomes more scientific.

A diversion work for river gate dams and spillways comprises an integrated platform made of two segments; wherein, the inside wall of the first segment platform is an circular conical surface; the outside wall is a circular cylindrical surface; both the top face and the bottom face are planes; the inside wall of the second segment platform is a torsion face, and the outside wall is a tangential plane against the circular cylindrical surface of the first segment platform; both the top face and the bottom face are also planes. In installation, the tail of the transition torsion face of the second segment platform is tangentially connected with side walls of an inlet side hole on a river gate dam or a spillway. The diversion work can effectively resolve the problem of transiversal shrinkage of water flow in front of inlets of the river gate dam and the spillway. To further improve water flow status, it is necessary to add a vertical guide dam; one end of the vertical guide dam is linked to the tail of the transition torsion face of the second segment platform; the other end is connected with the side wall of the river gate dam or the spillway inlet side hole. In a plurality of projects, the first segment platforms can be extended to connect with the bank, for which the surrounded lands can also be utilized for other purposes.

The invention relates to an eco-friendly subsidiary dam capable of improving gas supersaturation generated during flood discharge and energy dissipation of large-sized hydraulic and hydroelectric engineering, comprising a dam body. The downstream face of the dam body is an overflow surface, a gate is arranged on a dam crest to control the outflow rate on the overflow surface so that the maximal water depth of the outflow of the overflow surface does not exceed 5m; a backward step of the dam body adopts the continuous type, and meanwhile, the flow over spillway is smoothly connected with the downstream water flow, so that the gas supersaturation water body is positioned at the upper layer of a downstream river course to accelerate the escape speed of the gas supersaturation water body; and the inner part of the dam body is provided with a penstock to guide the water in a water cushion pool to the lower reaches. The eco-friendly subsidiary dam capable of improving gas supersaturation can reduce water saturation when water passes through a low-head water turbine, reduces the supersaturation of the water of the downstream river course, and effectively controls the influence of gas supersaturation caused by flood discharge of the dam on the aquatic organism of the lower reaches.

The invention provides a vertical shaft bottom rectifier dissipater, being composed of a baffle well, an ogee slope section and a linear slope section with rectangular ring-shaped cross-section; the baffle well and the vertical shaft have the same axial line and are arranged below the bottom surface of a spillway tunnel, with the depth of 1D-2D (D is the diameter of the vertical shaft); the water inlet end of the ogee slope section is connected with the vertical well and the water outlet end thereof is connected with the water inlet end of the linear slope section; the water outlet end of the linear slope section is connected with the spillway tunnel; the ogee slope section and the linear slope section can be respectively fabricated and connected during the installation process or fabricated into a whole. The rectifier dissipater has sufficient dissipation, is beneficial to the stable jointing of the vertical shaft water flow and the spillway tunnel water flow, improves the water flow state inside the spillway tunnel and ensures the safe running of the spillway tunnel.

The invention discloses a pickling device for pickles. The pickling device for the pickles comprises a hollowly-arranged accommodating body, an outer covering body and an inner covering body. The accommodating body is provided with a closed first end and an open second end. The outer surface of the second end is provided with a first extension ring extended outward in a radial direction of the accommodating body, a second extension ring is arranged on the outer surface of the first extension ring, the outer edge of the second extension ring is extended upward to form a second edge; a first edge is provided with a plurality of spillway holes arranged around the first edge and penetrating through the inner and outer walls of the first edge, an upper edge of the second end extends upwards andgradually retracts along a radial direction of the accommodating body to form an opening, a first sealing ring extends upwards from an upper edge of the opening, and the inner cover body completely covers the opening. The inner covering body can effectively prevent water in a water sealing tank from splashing into a pickle jar. In addition, the lower end of a second sealing ring and the bottom end of an inferior border end are arranged in an uneven shape so as to facilitate smooth discharge of high pressure inside the pickle jar.

The invention discloses a method for eliminating pit buoyancy and a pit structure. The method is to provide spillway holes on the side wall of a pit so that ground water spills into the pit when the ground water level exceeds the spillway holes, so as to increase the sole weight of the pit and eliminate the buoyancy of the ground water to the pit. The pit structure is that one or more than one waterproof sleeve pipe is horizontally embedded on the side wall of the pit, filter screens and water check valves are arranged on the inner ports of the waterproof sleeve pipes, and filter layers are arranged in the waterproof sleeve pipes. The method can effectively reduce or completely eliminate the buoyancy generated by the ground water to the pit; the pit structure is simple and practical; the usage of construction materials can be greatly saved so that the construction cost is reduced and the material wastage is avoided. Besides, the method and the pit structure realize the real-time property and the controllability of buoyancy resistance for pit type buildings.

The invention discloses a water storage box and a cloth dryer with the same. The water storage box comprises a box body. A water box accommodating cavity having an opening formed on one end is arranged on the box body; a water spillway is arranged on the water box accommodating cavity; a water box is placed in the water box accommodating cavity; a water inlet and a water level detection port are arranged on the water box; the water accommodating cavity is provided with a water level detection channel matched with the water level detection port; the water level detection channel is inserted into the water level detection port after the water box is fully placed in the water box accommodating cavity; a water level detection sensor is disposed in the water level detection channel; the water level detection sensor can detects a water level of the water box; and the water level of the water box can be prompted via a prompting device according to the water level acquired by the water level detection sensor. Water level detection can be more accurate and timely alarm can be provided; and condensed water overflow can be prevented.