144results about How to "Reduce water flow rate" patented technology

The invention relates to a multifunctional film-free electrolytic boiled water machine which is characterized by comprising a container, a heater, a controllable electrolytic power supply, an electrolytic tank and an electrolytic electrode assembly, wherein the contained is filled with raw water; the heater is capable of heating or boiling water; the electrolytic tank is provided with a water inlet and a water outlet; the electrolytic electrode assembly is arranged in the electrolytic tank, and the electrolytic electrode assembly adopts a film-free water electrolysis technology with higher efficiency; the raw water inside the container can be heated or boiled through the heater and then flows into the electrolytic electrode assembly from the water inlet of the electrolytic tank; the water is electrolyzed through a gap positioned between electrodes, which have different polarities, of the electrolytic electrode assembly; and the electrolyzed water flows out of the water outlet of the electrolytic tank. According to the multifunctional film-free electrolytic boiled water machine, the design scheme of the electrolytic electrode assembly combines the characteristics of three aspects that the spacing of the gap positioned between the electrodes with different polarities is reasonably minimized, the area of the electrode gap is reasonably maximized, the water has proper flowability in the electrode gap through a water electrolyzing process, and the like to increase the electrolytic probability and quantity of impurities and water molecules which are contained in the water, so that the water electrolysis efficiency is improved.

The invention discloses an offshore wind power single-pile foundation scouring protection device. The offshore wind power single-pile foundation scouring protection device is characterized in that a turbulent flow bottom plate and lateral turbulent flow plates are fixed on a single-pile foundation; one end of the single-pile foundation is fixed in a seabed, the single-pile foundation is firmly connected with the seabed and is not easily scoured away by ocean current, and the turbulent flow bottom plate is fixed on the outer side of the single-pile foundation to form a seabed protection layer structure; multiple annular turbulent flow plates are fixed to the upper end of the turbulent flow bottom plate, and the annular turbulent flow plates can effectively reduce the water flow velocity at the seabed surface and reduce the seabed scouring effect; meanwhile, the pressure of seawater on the turbulent flow bottom plate can be utilized, and the scouring phenomenon between the single-pile foundation and the seabed is effectively prevented; the lower end of the turbulent flow bottom plate makes contact with the surface of the seabed; meanwhile, the bottom of the turbulent flow bottom plate can fix the bottom of the seabed; the plurality of lateral turbulent flow plates are evenly arrayed in the circumferential direction of the single-pile foundation, the purpose of weakening vortex formation around a pile body through the lateral turbulent flow plates is achieved, and then the seabed scouring effect is weakened; and the structure is simple, the flow speed of seawater around the pile is effectively reduced, and generation of large vortexes around the pile is reduced.

The invention discloses a garden type rainwater impact resistance system used for a residential area road. The system comprises a permeable driving road surface system, a permeable walking road surface system, an overflow type shallow grass groove system and an overflow type rainwater garden system, wherein the overflow type rainwater garden system is located at the tail end downstream position of the overflow type shallow grass groove system; the permeable driving road surface system and the permeable walking road surface system are located on the two sides of the overflow type shallow grass groove system and the overflow type rainwater garden system respectively; road surface runoff rainwater of the permeable driving road surface system and the permeable walking road surface system is laterally drained into the overflow type shallow grass groove system and the overflow type rainwater garden system; rainwater in the overflow type shallow grass groove system overflows into the downstream of the overflow type rainwater garden system. The LID technology for processing the rainwater and the traffic calming technology are combined, and the system can achieve initial purification of the road surface runoff rainwater in a resident area, reduction of total externally drained runoff quantity and effective buffering of road runoff flood peak flow when rainstorms happen, and can promote road vehicles to slow down to solve the traffic safety problems such as overspeed of the vehicles; in addition, the system can be sufficiently combined with the surroundings, and a certain landscape effect is formed.

The invention discloses a novel electrolytic water equipment with bore-log-structured electrodes, which is characterized by comprising an electrolysis electrode component, an electrolytic cell for mounting the electrolysis electrode component and an electrolysis power supply for the electrolysis electrode component, wherein the electrolysis electrode component consists of two electrodes with different polarities, one of the electrodes is of a columnar-hole shape, the number of the columnar-hole-shaped electrodes is N, N is equal to or greater than 1, and the positions of the columnar-hole-shaped electrodes are mechanically fixed and are mutually electrically connected; the other electrode is of a columnar shape, positions of columns are mechanically fixed and are mutually electrically connected, the number of the columnar electrodes is M, and M is equal to or greater than 1; the columnar-hole-shaped electrodes are inserted into the corresponding columnar holes, a gap for electrolyzing water is reserved between surfaces of the columnar electrodes and the opposite surfaces of the columnar-hole-shaped electrodes which are inserted together; water in the electrode gaps can flow during electrolysis; and a certain space is reserved outside positions of two ports of the electrode gap, so that water can flow in the gap of the electrodes during electrolysis.

The invention discloses an underwater riprap foundation bed and side slope erosion resisting structure which comprises an erosion resisting device arranged on the surface of a foundation bed or the surface of a side slope, a fixing structure for fixing the erosion resisting structure onto the foundation bed or the side slope and a ditch dug along the foundation bed or the lower end of the surface of the side slope, wherein the lower end of the erosion resisting device is embedded in the ditch for fixing, and the erosion resisting device is of a soil engineering structure with a casing formed by soil engineering materials and with sand and stone filled in the casing. By installing and fixing the erosion resisting device onto the surface of a structural object, the peripheral water flow speed can be reduced, so that the aim of resisting erosion damage to the structural object can be achieved. All steps related in the technical scheme do not need large machinery for matching, and construction is easy and economic.

The invention discloses a hydropower station bank slope and stilling pool combined energy dissipation method, which is characterized in that: a trapezoidal bank slope with a gradient of less than 70 DEG is built below a water outlet of a spillway of a hydropower station; the lower end of the bank slope is jointed with a river bed; a water flow passing through the water outlet of the spillway flows down from the bank slope to reduce unit discharge and wash a natural stilling pool on the edge of the river bed; and after the energy of the water flow is dissipated by the bank slope and the natural stilling pool jointly, the water flow passing through the water outlet of the spillway is discharged along the river bed. In the method, the bank slope can be built by leveling and lining a natural bank slope and made into a trapezoid with a narrow upside and a wide downside; while the water flow passing through the water outlet of the spillway is discharged downward along with the trapezoidal bank slope, the unit discharge of the water flow discharged downward is reduced; the water flow discharged downward washing a downstream river bed close to the edge of the bank slope to make a scour pit; and the scour pit serving as a natural stilling pool allows the water flow discharged downward to make a jump so as to dissipate the energy of the water flow. The method can produce desirable energy dissipation effect and can effectively save the space occupation of buildings.

The invention provides a stereoscopic net structure member for ecological bank protection. The stereoscopic net structure member for ecological bank protection is characterized by an outer component of a box structure, a cross-shaped component is arranged inside the outer component, and the four ends of the cross-shaped component make contact with the corresponding inner walls of the outer component; the outer walls of the four corners of the outer component are sequentially provided with a first protruding part, a second protruding part, a third protruding part and a fourth protruding part which are used for being clamped to adjacent outer components; and through holes perpendicular to the axis of the outer component are formed in the walls of the outer component and wing plates of the cross-shaped component. The stereoscopic net structure member for ecological bank protection effectively reduces the flow velocity of water on a nearshore bank slope and relieves wave energy, thereby preventing nutrient soil on the bank slope from being eroded by the water.

The invention provides an energy dispersion buffer system, and comprises at least one buffer device, wherein the buffer device comprises at least three tyre pillar units, a round net unit, a filling unit and a cladding unit; the tyre pillar units are arranged at intervals and are respectively provided with a branch positioning pillar, a plurality of waste tyres and a cladding net; the waste tyres are arranged on the positioning pillar in a sleeved mode along the length direction of the positioning pillar and are stacked with each other; the cladding net clads the waste tyres; the round net unit comprises the tyre pillar units and defines out an accommodation space; the filling unit is filled in the accommodation space; the cladding unit is provided with a plurality of waste tyres cladded at the outside of the tyre pillar units, the round net unit and the filling unit; and the waste tyres are bound and fixed on the round net unit at least, and the adjacent waste tyres are bound and fixed with each other. The invention adopts the buffer device to eliminate the wave of the water flow, thereby reducing the water flow speed, and enabling the sand and stones around the base part of the building not to be hollowed out.

The invention relates to an ecological riparian zone construction method. According to the method, circular concrete tubes with permeable holes distributed on tube walls are adopted for shore protection, artificial wetland matrix beds are constructed in the circular tubes, and finally emergent aquatic plants and humidogene trees and shrubs are planted in the surfaces of the artificial wetland matrix beds, thus constructing wetland biological communities. A riparian zone constructed by virtue of the method has the functions of slowing down flowing speed of water at a littoral zone, stabilizing river banks, creating a growth environment for plants in a water area close to a river course and providing multi-pore habitats to benthic animals; and the plant communities can absorb river pollutants, thereby purifying river water quality. As being capable of reconstructing degraded riparian zone plant communities, the method provided by the invention lays a foundation for the construction of a healthy riparian zone ecosystem, and provides technologies to restore the degraded riparian ecosystem and reconstruct and restore vigorous riparian zones and river ecosystems.

The invention belongs to the animal culture industry, and in particular relates to an artificial culture method and culture equipment of mysid. According to the artificial culture method of the mysid, the mysid is cultured in an aquatic economic animal culture pond and cultured in a floating modular net cage system placed in a culture water body; and the temperature in the culture process is below 30 DEG C, the salinity of the culture water body is 0 to 300 percent, and the inoculating density is over 100 pieces per liter. The modular net cage culture system is used in the culture method, the mysid is cultured in the aquatic economic animal culture pond, and the size of net cage modules is regulated according to the size of the pond, so that the space of the water body is fully utilized. Meanwhile, the modular net cage culture system prevents the mysid from taking water bottom detritus so as to ensure the cleanliness of the mysid serving as bait.

The invention discloses a device for flushing a toilet by utilizing water discharged from a drum washing machine. The device comprises the drum washing machine, a water storage tank and a flush toilet, wherein the drain pipe of the drum washing machine is connected with the water inlet of the water storage tank; an overflow pipe connected with a floor drain is arranged at the upper part of the water storage tank; a water outlet pipe at the lower end of the water storage tank is connected with the water inlet pipe of the water tank of the toilet; a carbon box for containing activated carbon is arranged in the water storage tank to adsorb water discharged from the washing machine; a cleaning agent box with a cylindrical structure is arranged at the water outlet of the water storage tank; the top and bottom of the cleaning agent box are communicated with the water outlet pipe; an annular interlayer for accommodating a toilet cleaning agent is arranged in the cleaning agent box; small water leaking holes are distributed in the whole lateral surface and whole bottom of the interlayer. According to the device, water discharged from the drum washing machine can be directly mixed with the toilet cleaning agent without irritant harmful gas when being used for flushing the toilet, and the consumption of other energy resources and power in a process of flushing the toilet by utilizing water discharged from the drum washing machine is avoided, so that the device is clean, environment-friendly, safe and effective.

The invention discloses a gas water heater. The gas water heater comprises a heat exchanger and a water mixing water path; the heat exchanger is connected with a water incoming pipe and a water outgoing pipe, so that a water path can be formed; the water mixing water path is connected with the heat exchanger in parallel and provided with a control valve for controlling the opening and closing of the water path; and the water incoming pipe is provided with a pump for adjusting water incoming flow speed. The invention further discloses a control method of the gas water heater. According to the gas water heater of the invention, when the required heat load of the gas water heater is smaller than the minimum set value of the heat load, inflow water of the heat exchanger of the gas water heateris shunted, or the flow speed of the heat exchanger of the gas water heater is increased; and the gas water heater is controlled to operate at temperature larger than the minimum set value of the heat load. With the control method adopted, the gas water heater can adjust the temperature of outflow water which has been subjected to combustion heat exchange through the increased water flow speed, and therefore, the gas water heater is suitable for a working condition having a low-heat-load requirement, and the use range of the gas water heater is widened.

The invention discloses a water-permeable spur dike capable of adjusting the angle with a river bank. The water-permeable spur dike comprises a steel plate pile vertically arranged on one side of a riverway. A groove is vertically formed in the middle of the front side of the steel plate pile. A cuboid dike boy is vertically arranged at the position, on the front side of the groove, in the riverway. The dike body comprises a main dike body and an auxiliary dike body arranged in front of the main dike body to serve as an upstream face. A traction ring is transversely arranged at the lower position of the middle of the offshore face of the dike body. A steel twisted rope is fixed to the traction ring. The nearshore face of the dike body and the groove of the steel plate pile are hinged and fixed together through a hinge. The other end of the steel twisted rope is connected with a traction mechanism on the river bank. According to the water-permeable spur dike, the included angle betweenthe dike body and the river bank according to the requirement of the actual fairway depth, the size of water passing holes of the dike body can be controlled by changing the position of the auxiliarydike body, and therefore the flow speed of water flow is reduced stage by stage when water flow passes through a water-permeable spur dike group.

The invention discloses an underwater scour protection method and a device, and relates to the technical field of offshore wind turbine foundation scour prevention. The underwater scour prevention method defined in the invention comprises the steps of overlapping and fixing the bottoms of a plurality of artificial seaweeds to strings, and forming artificial seaweed units; connecting the strings vertically and horizontally to a string net; connecting the string net to a ballast or an anchoring device to form the underwater scour protection device; sinking one or more underwater scour protection devices to corresponding positions around a seabed foundation. In the invention, the technical problems are solved that the scour phenomenon easily occurs in underwater scour protection measures due to covering of protection range edges in the prior art, and the seabed foundation is affected by scour severely after ripraps, sandbags and other coverings are rushed out of the seabed design protection range by subsea current.

The invention relates to treatment equipment capable of reducing water flow impact noise. The treatment equipment comprises a water pipe, wherein a sound arrester is detachably arranged on the outer wall of a bend of the water pipe; a plurality of choke baffles are arranged on the inner wall, close to the bend, of the water pipe; and the choke baffles are obliquely arranged on the side wall of the inner chamber of the water pipe. When water flow impacts the inner wall of the bend of the water pipe to generate noise, the sound arrester arranged on the outer wall of the bend can isolate the generated noise to prevent noise from being transferred to the outside, and accordingly, the work and the life of residents cannot be influenced. The sound arrester detachably arranged on the outer wall of the bend of the water pipe is convenient to detach and mount. The choke baffles are arranged to slow down the water flow, so that the water flow is prevented from impacting the outer wall of the bend too severely and fast, the impact sound is effectively reduced, and noise is reduced from the source. When the water flow impacts the inner wall of the bend of the water pipe to generate noise, the sound arrester arranged on the outer wall of the bend isolates the generated noise, so that noise is prevented from being transferred to the outside, and accordingly, the work and the life of the residents cannot be influenced.

The invention provides a flashboard type current guiding, sediment intercepting and accumulation promoting hydraulic structure with holes and a construction method. The flashboard type current guiding, sediment intercepting and accumulation promoting hydraulic structure comprises multiple porous components, multiple hollow rods and connecting components, wherein the multiple porous components areconnected into a whole; the multiple porous components are provided with multiple water-pervious holes, and are used for reducing the flow velocity of a current and promoting sediment accumulation; the multiple hollow rods are all fixedly arranged on the porous components, and are used for supporting the porous components to erect; hollow rods located at the lower parts of the porous components are provided with small holes; the connecting components are used for connecting two adjacent porous components, and are used for preventing the porous components from overturning. The flashboard type current guiding, sediment intercepting and accumulation promoting hydraulic structure with holes can be used for enabling part of the current to downstream flow through the water-pervious holes, is used for effectively decreasing the flow velocity of the current in the rear of the current guiding, sediment intercepting and accumulation promoting hydraulic structure, and meanwhile, can be used for enabling part of coming sediment to directly pass through porous plates; not only can the sediment be promoted to deposit in the rears of the porous plates, but also the toe scouring at the fronts andbacks of the porous plates can be decreased; the effects of slowing the flow and promoting the accumulation are effectively reached, and the action of guiding the current is also realized while the bank protection and the beach protection are achieved.

The invention discloses a flocculation reaction framed bent device equipped with flexibly-connected impellers. The device comprises framed bents composed of a plurality of lattice bars which are parallel to each other. The framed bents are fixed by a framework. A plurality of flexibly-connected impellers are installed on each lattice bar. Each impeller is composed of a main shaft, a wheel hub and blades. The blades and the wheel hub are connected through springs. Under the impact of current, blades drive the wheel hub to rotate around the main shaft. The framed bents are installed in pairs. The lattice bars on upper and lower framed bents are arranged in a staggered pattern. Impellers on each framed bents are arranged side by side. That is to say, the maximum rotation radiuses of adjacent impellers tangent to each other, and the installation point of each impeller on the lower framed bent is right facing the central gap in the middle of four impellers on the upper framed bent. When current flows through the impellers, the impellers rotate so as to guarantee turbulent fluctuation performance of flocculation. When the flow increases, the rotation radius of the impellers will be reduced under the impact force of current, flow area is increased, and flow velocity is reduced. Thus, head loss is decreased, and it is ensured that head loss is basically stable when the flow increases.

The invention discloses stacked overflow type sewage treatment equipment which comprises a plurality of stacked cases. The stacked cases are assembled to form the stacked overflow type sewage treatment equipment and comprise cases, first barriers, overflow plates, settling tanks and pollution discharge pipes, the first barriers and the overflow plates are longitudinally parallelly arranged on the inner walls of the cases, and one end of each settling tank is fixedly connected with the corresponding overflow plate so that a cavity can be formed by each settling tank and the corresponding case; the other end of each settling tank is connected with a side wall of the corresponding case, a water outlet is formed in the inner wall of each case, a plurality of pollution discharge outlets are formed in joints of the settling tanks and the inner walls of the cases, and the pollution discharge pipes are arranged on the outer sides of the cases and are communicated with the pollution discharge outlets. The stacked overflow type sewage treatment equipment has the advantages that the quantities of the stacked cases can be set as needed, the stacked cases are assembled in a stacked manner, and accordingly the problem of excessively high side pressures can be solved; the stacked cases are connected with one another in a multilevel manner, accordingly, the lengths of water flow channels can be increased, the total capacity can be increased, and overflow type merits can be effectively utilized by the stacked overflow type sewage treatment equipment; the stacked cases of the stacked overflow type sewage treatment equipment can be assembled as needed, the volume of the stacked overflow type sewage treatment equipment can be voluntarily adjusted, and the stacked cases are convenient to assemble.

The invention discloses a filtrate flow-guiding silencer. The filtrate flow-guiding silencer comprises a drum body, wherein the top end of the drum body is connected with a liquid inlet pipe, the upper part in the drum body is provided with a flow-guiding device, the flow-guiding device is composed of filtrate baffles interlaced and fixedly connected to the inner wall of the drum body, and an S-shaped flow-guiding area is formed among the filtrate baffles; the lower part in the drum body is provided with the silencer, the tail end of the silencer is connected with a filtrate drainage pipe, the silencer device is composed of three layers of silencing drums, each layer of silencing drum is fixedly connected to the inner wall of the drum body. The filtrate vapor and water mixture is buffered and silenced in the filtrate water emission process, so that the liquid speed is reduced, the emission is uniform, and the sound wave produced by compressing air high-pressure blast can be dispersed; the noise is eliminated, the working performance of a filter press is improved, the field operation environment is optimized, and the staff work load is lightened.

The invention provides a stone blocking grate type three-dimensional roughening method for damming. According to the stone blocking grate type three-dimensional roughening method for damming, a stone blocking grate is arranged at the downstream position along a berm in a damming colure gap area and prevents damming materials from running off, the stone blocking grate is an array structure composed of multiple stone blocking piles, the height of the stone blocking grate is 0.4 to 0.8 time that of the berm. According to the optimal arrangement mode of the array structure composed of the multiple stone blocking piles, any one of every two adjacent columns of stone blocking piles are arranged at the positions corresponding to the centers of gaps between the stone blocking piles of the other column, any one of every two adjacent rows of stone blocking piles are arranged at the positions corresponding to the centers of gaps between the stone blocking piles of the other row. By the adoption of the stone blocking grate type three-dimensional roughening method for damming, the wastage rate of the damming materials can be reduced during closure of a high-difficulty damming closure gap, the economical efficiency of a damming project is improved, the flow speed, the fall and the unit stream energy of the closure gap are reduced, and the safety of damming and successful damming are guaranteed.

The invention provides an ocean platform for wave power generation and belongs to the technical field of ocean engineering. The ocean platform for wave power generation comprises a platform body, a floating box and a plurality of vertical pillars. Installing platform bodies protruding towards to the two sides are arranged at the upper ends and the lower end of the vertical pillars correspondingly, two power generation mechanisms are arranged between the two installing platform bodies, and each power generation mechanism comprises a generator, a floating body, at least one first chain wheel and at least two second chain wheels. The generators are fixed to the installing platform body located at the upper ends of the vertical pillars, third chain wheels are fixedly connected to the ends of input shafts, and the first chain wheels are rotatably arranged on the installing platform body located at the upper ends of the vertical pillars. The second chain wheels are rotatably arranged on the installing platform body located at the lower ends of the vertical pillars, the first chain wheels, the second chain wheels and the third chain wheels are connected in a transmission mode through chains, the two floating bodies are in one-to-one correspondence with the two power generation mechanisms, and the floating bodies are arranged between the two installing platform bodies and fixed to the chains. According to the ocean platform for wave power generation, the wave energy is adopted for power generation, energy consumption is low, and pollution is avoided.

The invention discloses a porous ecological embankment block body. The porous ecological embankment block body comprises a single body and a connecting column; the single body is a hollow cuboid; the single body is provided with six side walls; a through plant growing hole is formed in a bottom wall and fish passing channels are formed in other side walls of the single body; cylindrical grooves, which have the same specification and are not through, are formed in the six side walls of the single body; the connecting column is a cylinder and the diameter of the connecting column is slightly smaller than that of each cylindrical groove; and the length of the connecting column two times as much as the depth of each cylindrical groove. The block body is provided with the six relatively thick walls and is made of ultrafine concrete; the block body has good stability so that the durability is guaranteed; the plant growing hole in the lower wall is through; and various building materials can be added through the plant growing hole and aquatic plants can be planted into the block body connected with the ground and provide organic matters needed by fishes, so that a relatively good fish collecting effect is realized.

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 relates to a high-density air flotation settling basin device. The technical problem that air flotation and settling processes do not contact well in an existing device is mainly solved. The settling basin device comprises a coagulating basin, a stirrer is arranged in the coagulating basin, and a chemical adding system is connected to a water inlet pipeline of the coagulating basin; an outlet of the coagulating basin is connected with the bottom of a flocculation reactor, a flow lifting stirrer and a flow lifting barrel are arranged on the flocculation reactor, the lower surface of the flow lifting stirrer and a return sludge pipeline are connected with a chemical adding system, the flocculation reactor is connected with an air flotation contactor through a pipeline, a pipeline arranged in the air flotation contactor is communicated with an inclined pipe sedimentator, and a conical sediment collecting tank is arranged below the air flotation contactor and the inclined pipe sedimentator; a water outlet pipe of the inclined pipe sedimentator is connected with a rear mixing stirrer, a stirrer is arranged in the rear mixing stirrer, the rear mixing stirrer is connected with a chemical adding system, and a water outlet pipe of the rear mixing stirrer is connected with a water pipeline; a scum scraper is arranged on the upper portion of the air flotation contactor, a discharging opening of the scum scraper is connected with a scum basin through a scum discharging pipe, the scum basin is connected with a scum pump through a pipeline, and the output end of the scum pump is connected with a pipe mixer and then is connected with a sludge hopper through a pipeline to carry out discharging.

The invention discloses a hydraulic impact rotating cylinder fishway, and particularly relates to the technical field of river blocking building fish passing. The hydraulic impact rotating cylinder fishway comprises a gate foundation groove fixed to a riverbed at the bottom of an inlet of the fishway, a flow guide assembly is arranged at the inlet side of the gate foundation groove, a row of waterflow adjusting mechanisms and partition plate assemblies are arranged in the middle of the gate base groove in the water flowing direction in an alternative manner and divide the fishway into a leftpart and a right part, namely a slow flow area and a rapid flow area, an adjusting partition plate is arranged at an inlet of the rapid flow area, and the water flow adjusting mechanisms comprise vertical shafts, rotating cylinders and blades. According to the hydraulic impact rotating cylinder fishway, the water flow structure is improved through the rotating cylinders, the local flow field is effectively adjusted, the hydraulic impact rotating cylinder fishway is suitable for running of target fishes, the flowing speed is reduced, so that the physical strength recovery of the fishes in the upstream process is facilitated, and the fish passing effect is improved; and the overall structure is simple, too much maintenance is not needed, and the hydraulic impact rotating cylinder fishway iseconomically suitable for various hydraulic engineering and suitable for high-water-head dams.

The invention discloses a cyclone desander capable of cleaning solids in real time, belonging to the field of desanding equipment. The rotational-flow grit chamber comprises an outer cyclone tube andan inner cyclone tube, wherein the bottom of the outer cyclone tube is provided with a solid treatment case used for treating screened solid particles, and the solid treatment case is in communicationwith the inner cavity of the outer cyclone tube. According to the rotational-flow grit chamber capable of cleaning solids in real time, the separated solid particles are piled up on the bottom of theouter cyclone tube, so the flow rate of water flowing through the inner cyclone tube is reduced, a sealing piston in a movable sealing tube moves downward due to increase of downward pressure, and avalve ball seals the movable sealing tube and the inner cavity of the outer cyclone tube; at the same time, a valve core blocks the bottom port of the inner cyclone tube, and the movable sealing tubeis moved downward by pressure, so the solid particles in the movable sealing tube flow through a through groove to the treatment case, and thus, the solid particles are discharged and cleaned in realtime according to the amount of the solid particles in the outer cyclone tube without shutdown of related equipment, which enables the working efficiency of the cyclone desander to be improved.

A mud scraper relates to the field of sewage treatment, in particular to an improvement of a mud scraper for sewage treatment. According to the mud scraper, inflow water stirring is reduced, and the contact time of sewage and a flocculating agent is prolonged, so that the effluent efficiency is guaranteed. The mud scraper comprises a tank body and a working bridge fixed above the tank body. A flowstabilizing cylinder is fixedly arranged on the bottom surface of the working bridge; a water inlet is formed in the upper portion of the flow stabilizing cylinder; a plurality of stabilizing plateslocated below an outlet of a water inlet channel are arranged on the inner wall of the upper portion; one end of each stabilizing plate is evenly fixed to the inner wall of the upper portion, and theother end of the stabilizing plate is fixed to the outer wall of a connecting ring; the connecting ring is arranged on a mud scraping shaft in a sleeving mode; and the stabilizing plates are arrangedobliquely to the horizontal plane. The flocculation effect is improved, and the effluent efficiency is finally ensured.

The invention discloses a water outlet device which comprises a water outlet body and a rotating part. The water outlet body is provided with a water passing cavity, the bottom wall and the side wall of the water passing cavity are provided with a water outlet hole and inclined water channels respectively, a plurality of protruding blocks are further arranged in the water passing cavity around the water outlet hole, an inclined water groove is formed between every two adjacent protruding blocks, and the tangential water flow rotation directions formed by the inclined water grooves and the inclined water channels are consistent; each protruding block is provided with a supporting surface; the rotating part extends into the water outlet hole, and a water outlet gap is formed between the rotating part and the water outlet hole; the rotating part is provided with impellers corresponding to the inclined water channels, abutting surfaces opposite to the supporting surfaces and a plurality of water pressing blocks corresponding to the inclined water channels; and pushing faces are arranged on the water pressing blocks in the water outlet directions of the inclined water channels and incline relative to the supporting surfaces, so that outlet water of the inclined water channels can push the abutting surfaces to be away from the supporting surfaces. The water outlet device provided by the invention can rapidly rotate under the action of high-pressure water flow and low-pressure water flow, and the water outlet effect is ideal.