346results about How to "Slow down the flow of water" patented technology

The invention belongs to the technical field of livestock breeding and specifically relates to an ecological method of breeding chicken by planting grass under trees. The method includes that a fine forage grass breed which is shade-tolerant, trampling-resistant, strong in stress resistance and applicable to being planted in the forest is selected, and a forest land for grazing the chicken is modified to form a grassland under the trees for grazing the chicken; a contour grass and shrub zone in a stocking land is used for planting the grass, a chicken house is built in the middle of the grassland under the trees for grazing the chicken, zone division is performed for rotation grazing, and zones are separated by biological fences; and Chinese herbal plants are sowed in rotation grazing zones so that the grazed chicken can freely ingest the plants. A scientific evidence is provided for obvious economic benefits and ecological benefits which are achieved by means of rapid development of domestic fowls and effective ecological rehabilitation, wherein the domestic fowls of Hetian chicken and the like are applicable to stocking in forestland. By means of the model for breeding the chicken, high economic benefits are created, parts of the economic benefits are used for investing development of ecological chicken breeding model, and the created economic benefits and the development of ecological chicken breeding model are combined for creating better benefits, and accordingly, a virtuous cycle is achieved, ecological balance is kept, and the sustainable development is effectively achieved.

The invention discloses an integrated method of lake water environment management. The integrated method of the lake water environment management comprises the steps of making first-phase preparations for lake water environment integrated management, analyzing a landform, designing the type of a side slope, determining the self-cleaning capacity of a lake, controlling pollution sources around the lake, conducting a silt-removing treatment on a water body, managing the side slope, conducting ecological restoration on the lake, and conducting monitoring and emergency treatment on the lake. The integrated method of the lake water environment management is used for enabling a lake water environment biologic chain to be effectively restored and consolidated and enabling the lake side slope to be stable.

A cover panel to overlie the upwardly-facing opening of a rain gutter trough to block the entry into the trough of leaves and other debris which would otherwise block or restrict the flow of water from a downspout opening formed in the gutter trough. The cover includes a curved outermost end that overlies and is spaced from a front edge of the gutter trough and around which water flows into the gutter trough. The cover also includes a plurality of longitudinally-extending, spaced, parallel ridges for spreading a substantially uniform flow of water over and across the upper surface of the cover, and a plurality of longitudinally-extending rows of openings on the downstream side of the flow path of water over the cover after it has passed the ridges, to allow water to fall through the openings and into the gutter trough.

The invention relate to the technical field of chemical equipment, in particular to a reaction kettle. The reaction kettle comprises a reaction kettle casing, a feeding port, a discharging port, a stirring shaft and a motor, wherein the feeding port is formed in the upper part of the reaction kettle casing; the discharging port is formed in the bottom of the reaction kettle casing; one end of the stirring shaft extends into the reaction kettle casing, and the other end extends out of the reaction kettle casing and is connected with the motor; an isolation layer is arranged in the reaction kettle casing; a water inlet is formed in the upper part of the reaction kettle casing; a water flow channel is formed between the isolation layer and the reaction kettle casing; a hot water outlet is formed in the bottom of the reaction kettle casing and connected with a hot water pipe, a control valve is arranged on the hot water pipe, and one end of the hot water pipe is connected with a hot water tank. According to the reaction kettle adopting the technical scheme, resources are reasonably utilized, and heat energy is recycled.

The invention relates to a cover and sump assembly for a main drain of a pool or spa that prevents suction entrapment, and specifically, to an assembly having a frame with openings, plates with openings positioned on the frame, and a sump for collecting water and receiving the frame. The assembly reduces the velocity of water flowing there through, uniformly distributes a suction force created by water flowing into the sump, prevents a vortex of flowing water above the assembly, and provides anti-entanglement features to minimize the likelihood of an individual becoming entrapped on the assembly by a suction force produced by a pump in the pool or spa filtering system. The assembly includes a conduit defining an opening along a lower portion thereof that reduces the velocity of flowing water at the suction opening in the sump by reorienting the suction port from a vertical to a horizontal orientation.

The present invention relates to filters used to remove debris from water being sucked into a piping system. It has particular application for use in nuclear power plants, which, after a loss of coolant accident, must pump cooling water back into the reactor core from a collection sump. This water may contain various types of debris that must be removed before the water is sent back into the reactor cooling system. Filtering of the debris is realized with the component known as “strainers”. There are restrictions on the space available for installing strainers. The vaned filtering element, for example a vaned fin, of the present invention is designed to reduce the space required for strainer installation by increasing strainer surface area per unit volume, while maximizing the quantity of debris that can be filtered from the water.

The invention relates to an underwater revetment based on ecological bags and a water body ecological management method. The method comprises a first step of dredging and solidifying, a second step of establishing a water bottom foundation, a third step of clearing up the revetment surface, a fourth step of paving the ecological bags in a step-shaped lamination dislocation mode from the top of the water bottom foundation, a fifth step of planting submerged plants on the ecological bags, a sixth step of stopping river closure or beginning to coffer after the water quality conforms to or superior to the fourth scale of the national surface water environment criterion GB/3838-2002, wherein when the water quality does not conform to or inferior to the fifth scale of the GB/3838-2002, microbial preparation is added into the water according to the water quality measuring result, and a seventh step adding filter feeder fishes or/and herbivorous fishes, shrimps and demersal mussel animals. The method guarantees that floodwater can be drawn off based on the fact that the underwater revetment structure of rivers and lakes is safe, and the cooperative management capacity for the water body is improved through ecological restoration of the underwater revetment.

The invention discloses a nature-imitated fishway adapted to fishes with different swimming abilities, and relates to the ecological field of fish passing structures and water conservancy and hydroelectric engineering. The nature-imitated fishway comprises fishway outer wing walls, a fishway bottom plate and a plurality of fishway units. Fish upstream outer passages with the small flowing speed are formed between the fishway outer wing walls and fishway inner wing walls, and fish upstream inner passages with the large flowing speed are formed between the fishway inner wing walls of the same fishway unit; the outer passages and the inner passages are combined to form multiple hydrodynamic conditions to meet the upstream demands of the fishes with the different swimming abilities; and the fishway units are internally provided with deflection plates which automatically adjust the magnitude of the opening degree according to the flow magnitude and water depth change, so that the proper flow speed for passing of the fishes is easily formed at fish passing vertical seams. Compared with a tradition fishaway, according to the nature-imitated fishway adapted to the fishes with the differentswimming abilities, the diversified water flow conditions can be formed, environmental suitability of fish upstream is enhanced, and the migratory efficiency of the fishes with the different swimmingabilities is improved.

The invention discloses a water pipe flow stabilizing broadband muffler which comprises a water delivery pipe and a muffler casing. An expanded perforated pipe is fixedly installed on the inner side of one end of a muffler casing body fixedly connected with the water delivery pipe. An end plate is fixedly arranged at the other end of the muffler casing. A shunting perforated pipe is further fixedly connected onto the end plate, and a throttle ring is fixedly arranged at the port position of the inner end of the shunting perforated pipe. The inner diameter of the expanded perforated pipe is larger than the outer diameter of the shunting perforated pipe, the inner end of the expanded perforated pipe and the inner end of the shunting perforated pipe are in fixedly sleeved connection in a gapped mode, and the flowing cross area of the water delivery pipe is smaller than the sum of the hole flowing cross area of the end plate and the flowing cross area of the shunting perforated pipe. The water pipe flow stabilizing broadband muffler can achieve broadband muffling of the water pipe, effectively stabilize a flow field at the outlet end of the water pipe, reduce the water spraying-flowing speed and pressure, accordingly reduce water pipe port noise effectively and achieve the effects of flow stabilizing and broadband muffling.

The embodiment is a venturi front shroud that can be pursed or released to decrease or increase water velocity through the housing of a turbine.

The present invention is watersnail killing method and snail depositing pond for culvert, sluice, ditch and other water transfer engineering. The snail depositing pond includes inclined or vertical walls, bottom, snail blocking walls with lower water channel, and water inlet ditch with slope to the pond. The present invention is developed on the basis of researching the life habit of watersnail, and can separate and intercept watersnail effectively from other foreign matter in water while ensuring normal irrigation job.

The invention discloses an anti-wave ocean platform comprising a floating box and wave-absorbing elements, wherein the wave-absorbing elements are connected with the lower end of the floating box; the floating box is divided into a plurality of spaces through baffle plates; each space is provided with a valve; the valves include an irrigation valve, a discharge valve and an inflation/exhaust valve; the wave-absorbing element adopts a columnar structure; through holes or a plurality of narrow slits parallel to the mandrel direction of each wave-absorbing element are formed on the wave-absorbing element; the projections of the cross sections in a main wave direction of any two through holes or narrow slits on the same wave-absorbing element are not overlapped; the columnar wave-absorbing elements are arranged in a staggered manner; the staggered columnar structures can reflect long waves and billows and decompose un-reflected long waves with large scales into waves with middle scales; the through holes or the narrow slits can decompose the waves with the middle scales into waves with small scales; and water is injected into the floating box or the floating box is inflated through the switching off and the switching on of the valves, so that convenience in on-site construction or water floating can be enhanced. The anti-wave ocean platform has a wide application prospect.

An end cap for a downspout of a gutter system or the like. The end cap has a screen constructed to extend over an opening at a lower end of a downspout. The screen has peripheral edge portions constructed to extend over adjacent outer end portions of the downspout and to be connected thereto by friction, an adhesive, screws or other connectors. The peripheral edge portions may be integral with the screen or may be separate from and connected to the screen.

The invention relates to an environment-friendly river sewage monitoring and processing device. The environment-friendly river sewage monitoring and processing device comprises an energy acquisition system, a monitoring and processing system, a sewage processing system, and an intelligent control system. The energy acquisition system comprises a solar panel power generating device and a hydropowergenerating device. The monitoring and processing system comprises a water quality monitoring component, a neutralization component, and a frame support component. The sewage processing system comprises a water processing device and an aeration device. The intelligent control system comprises a power storage room, a control room, and a signal transmission room. By performing detailed configurations on each component, whether the sewage is discharged in the river channel or not can be monitored in real time; and the device self initiates the step of processing the sewage while transmitting signals to the external intelligent device and/or to the upstream and downstream gate systems in real time. Therefore, purification and no pollution of water in the river channel can be truly realized.

The invention discloses a bio-purification and photocatalysis duplex sewage treatment tower, which is characterized by comprising a tower body device, an ecologic filter layer device, a photocatalysis reaction device, a mud separation net and a water inlet/outlet device. The tower body is of a hollow cylindrical structure, the upper end is provided with a top cover, the ecologic filter layer is fixed in the middle of the tower body and is divided into a first filter layer, an ecologic filler ball layer and a second filter layer from top to bottom, which are divided and supported by partition plates; a photocatalysis reaction tank is arranged on the upper part of the ecologic filter layer and is internally provided with multilayered annular photocatalysis water permeable walls and ultraviolet lamp tubes, and the mud separation net is arranged at the lower part of the tower body; a water inlet pipe is arranged at the side wall of the lower part of the tower body; the upper end of a water outlet pipe is connected with the bottom of the photocatalysis reaction tank; an opening in the lower end of the water outlet pipe is formed in the bottom of the tower body. The bio-purification and photocatalysis duplex sewage treatment tower has the advantage that various pollutants in sewage can be effectively removed after duplex treatment of bio-purification and photocatalysis.

The invention provides an ultrasonic reinforced micro-channel heat exchanger. The heat exchanger comprises a shell, a water-cooling system, micro pin fins, an ultrasonic generator and an ultrasonic transducer, wherein the water-cooling system comprises a cooling water channel, a water inlet and a water outlet; the cooling water channel is arranged in the shell; the water inlet and the water outlet are connected with the cooling water channel to form the water-cooling system; the shell comprises a channel main body and an upper sealing cover; the channel main body and the upper sealing cover are connected in a sealing manner; the micro pin fins and the cooling water channel are arranged in the channel main body; the micro pin fins are arranged along the axial direction of the channel main body; the cooling water channel is formed in the spaces among the micro pin fins, and the spaces between the micro pin fins and the inner wall of the channel main body; ultrasonic transducer oscillators are distributed on the two sides of the channel main body; and the ultrasonic generator is connected with the transducer through a wire. According to the ultrasonic reinforced micro-channel heat exchanger, the ultrasonic generator is adopted to give out high-frequency signals to enable the transducer to generate ultrasonic vibration; an ultrasonic cavitation effect generated by the cooling water is changed into an ultra-turbulent flow state, so that the cooling effect is reinforced; and in addition, dirt in the channel can be cleaned at any time, and the heat transfer resistance is lowered.

An over grate filter for covering a grate and filtering storm water runoff is claimed and described. The over grate filter of the invention helps to control the flow of waterborne sediment and pollutants into the storm water grate, and it also serves to reduce the amount of sediment entering drainage systems. The invention may be fabricated from any filtration fabrics, including woven and non-woven fabrics. The selection of the specific filter fabric used in the invention depends on the anticipated storm water flow velocities, the anticipated pollutant volume and the expected maintenance schedule. The over grate filter of the invention may comprise multiple layers of filter material and a supporting inner core that enables the filter to lie flat on the storm water grate, providing improved wear resistance against foot and vehicle traffic and street sweeping activity over the prior art methods for filtering storm water.

The present invention provides a suction-type inverted-umbrella-shaped surface aerator, and belongs to the technical field of sewage treatment equipment, the suction-type inverted-umbrella-shaped surface aerator includes an impeller, a hollow shaft, a mounting plate, a drive mechanism, a pipe and a pump; the hollow shaft is connected with the mounting plate through a bearing, the mounting plate is mounted on a mounting foundation, the first end of the hollow shaft is connected with the drive mechanism, the second end of the hollow shaft is in transmission connection with a first hollow shaft of the impeller, the pipe passes through the first hollow shaft and the hollow shaft, the first end of the pipe is arranged below the impeller, the second end of the pipe is arranged above the impeller, the pipe is provided with the pump and a solenoid valve, the first end of the pipe is provided with a sewage suction port, and the second end of the pipe is provided with a sewage spout. The suction-type inverted-umbrella-shaped surface aerator is simple in structure, highly practical, adequate and uniform in aeration, and high in efficiency.

The invention belongs to the technical fields of surface source pollution control and water pollution biological treatment and particularly discloses a purification method of drainage outside a rice field in an estuarine area. Emergent plants are planted at bottoms of drainage trenches of the rice field; floating plants are planted on trench walls; the drainage outside the rice field passes through the drainage trenches and the trench walls in sequence and then flows to a nitrogen and phosphorus prevention and control box and a plant floating bed which are arranged on rice field drainage main canals so as to be treated; and then the drainage outside the rice field is introduced to a natural wet land so as to be purified and converged to rivers. By using the purification method, the traditional conditions are fully utilized, a large amount of land is not occupied, needed materials are easy to obtain, retaining effects to nitrogen and phosphorus are good, and meanwhile, a scenery effect is good.

A revetment mat meeting ASTM D6460 performance standards, as well as provides transportation and installation advantages that is constructed from a combination of small square blocks and larger rectangular blocks linked together by a series of cables to form a generally rectangular shaped revetment mat having lifting loops which linked blocks form non-linear water flow passageways whose shapes are maintained utilizing rigid straps and flexible, hollow, tubular spacers that also permit the revetment mat to be rolled up for transportation from the fabrication site to the construction site where the revetment mats will be installed in a revetment system.

The invention provides an ecological ornamental fish tank which is simple in structure and simple to operate, and solves the problem that an existing ecological ornamental fish tank is complex in water exchange and cleaning. The fish tank comprises a water box, a supporting bottom cabinet, auxiliary functional parts and a controller, wherein a filtering device is arranged in the bottom cabinet, the side portion of the water box is provided with three overflow pipes which include a water outlet pipe, a water inlet pipe and an anti-overflow pipe from inside to outside, the anti-overflow pipe is attached to the side wall of a tank body in an adhesive mode through a fixing edge vertical to the outer edge of the anti-overflow pipe, a spiral flow guide piece is disposed between the water outlet pipe and the water inlet pipe, the outer edge of the water outlet pipe is sleeved with the spiral flow guide piece, a submersible pump is arranged in the filtering device, the submersible pump is connected with the tail end of the water inlet pipe, the auxiliary functional parts comprise an illumination lamp, a temperature sensor, a control panel, an electric heating bar and an ultraviolet sterilization lamp, the control panel is provided with a temperature displayer and a parameter control key, control parameter data of the control panel are integrated on the controller, and the auxiliary functional parts are connected with functional modules corresponding to the controller through wires.