54results about How to "Increase water flow" patented technology

The invention relates to a novel weir flow bottom hole combined fishway with diversion piers and a vortex recognition method of the novel weir flow bottom hole combined fishway, and belongs to the field of hydraulic engineering and ecological engineering. On the basis of a traditional weir flow bottom hole combined fishway, a traditional thin-walled weir is bent in the horizontal direction by improving the form of the weir, then the length of the overflow front edge is increased, and a diversion pier is additionally arranged at an outlet of a bottom hole. The combination of the weir and the bottom hole can effectively change the proportion of overflow on the weir and overflow at the bottom hole, and can effectively improve the water flow state in the fishway pool chamber. Besides, on the basis of the idea that the vorticity is larger than deformation, the vorticity is further decomposed into a rotating part and a non-rotating part through an omega vortex recognition method, and then vortexes in the fishway are effectively recognized. Physical model tests and numerical simulation prove that the device can effectively improve the water flow environment in the fishway pool chamber, and can be popularized and applied to actual engineering.

The invention provides a crayfish egg in-vitro hatching device and hatching method, and relates to the technical field of in-vitro hatching. The in-vitro hatching device for the crawfish eggs comprises a hatching barrel, wherein a plurality of overflow ports are formed in the side wall of the hatching barrel; an egg containing barrel is embedded in the hatching barrel, the top end of the egg containing barrel is rotationally connected with an upper cover plate, and an aeration pipe is connected to the upper cover plate in an inserted mode and extends to the inner bottom of the egg containing barrel; the outer wall of the hatching barrel is sleeved with an overflow barrel, the aeration pipe is rotationally communicated with a first power mechanism, the first power mechanism is coaxially and rotationally embedded in the egg containing barrel, air is continuously injected to drive water to roll on the inner side and the outer side of the egg containing barrel, and active eggs and inactive eggs are gradually separated; the screening holes are utilized to gradually separate inactive eggs from active eggs, and the eggs overflow into the overflow cylinder from the overflow port under the rolling action of the water body, so that good eggs and bad eggs are separated, and bacteria on the bad eggs are prevented from quickly infecting the good eggs.

The present invention relates to the technical field of composite membranes, and discloses a PO composite membrane and a preparation method thereof. The PO composite membrane prepared by the present invention comprises a base membrane and a coating liquid; wherein the base membrane is formed by coextrusion of an inner layer, a secondary outer layer and an outer layer, and the coating liquid is a mixture of the following raw materials in parts by weight: 25-35 parts of aluminum sol, 5-8 parts of modified hyperbranched polymer, 2-4 parts of polyvinyl pyrrolidone, 1-3 parts of sodium lauryl sulfate, 5-7 parts of polyacrylate resin, 4-6 parts of modified chitosan, and 45-55 parts of deionized water; after the base membrane is coated with the coating liquid, a composite membrane is obtained, which has excellent adhesion, hydrophilicity and drip anti-fogging performance.

The utility model relates to a structure for protecting a current bridge pier in the center of a channel, which comprises a protected bridge pile, an upper bridge pier and a bridge, first support piles and second support piles are respectively arranged on two sides of the channel in rows, and a circle of third support piles are arranged on the outer contour of the bridge pile. A first top beam, a second top beam and a third top beam are arranged at the tops of the first supporting pile, the second supporting pile and the third supporting pile correspondingly, and a first hidden beam, a second hidden beam and a third hidden beam are arranged at the positions, close to the first supporting pile, the second supporting pile and the third supporting pile, of the two sides of the bottom of the channel correspondingly. The supporting piles on the outer side of the bridge pile can prevent water flow scouring, the straining beams, the first hidden supports and the second hidden supports are used for cooperatively protecting the protected bridge pile and the bridge pier, deformation of a bridge structure can be reduced to the maximum extent, the hidden supports and the hidden beams are located below a channel, and the size of an overflowing section of the channel is not affected; and the drainage function of the channel is considered on the basis of ensuring the safety of the bridge structure.

The invention discloses a decentralized discharge source sewage collection-A2O treatment linkage system and a treatment method. The linkage system comprises a sewage pretreatment and pipe network collection system, an A2O treatment system and a discharge system. By adopting a negative pressure collection technology, the sewage collection problem caused by complex terrain in a sewage collection range is solved, and the sewage collection efficiency is improved; the gas stripping technology, the Venturi technology and the siphon technology are creatively applied to the sewage process, and sewage collection and sewage lifting, muddy water backflow and oxygenation in the A2O process can be achieved only through one self-priming pump; the Venturi jet device directly performs jet aeration on the aerobic tower, so that the dependence on a high-energy-consumption mechanical aeration fan is reduced, and resource waste and material loss are avoided; meanwhile, distribution of water flow and dissolved oxygen in the reaction tank is optimized, natural circulation is formed through the density difference between the aerobic tower and the anoxic tower, additional power is not needed, the energy consumption is reduced, meanwhile, the nitrogen and phosphorus removal process is promoted, and the treatment efficiency is remarkably improved.

The utility model discloses a pump head for improving water flow of a central air conditioner, and relates to the technical field of pump heads. The device comprises a main pipeline, an upper pressed shell is arranged over the middle of the main pipeline, a telescopic cylinder in bolted connection with the upper pressed shell is arranged over the upper pressed shell, a movable cylinder is slidably arranged in the telescopic cylinder, an air cylinder is fixed to the upper end of the movable cylinder, the piston end of the air cylinder is tightly attached to the inner side wall of the movable cylinder, and square boxes are fixed to the two ends of the main pipeline correspondingly. And ball openings communicating with the interior of the main pipeline are formed in the square boxes correspondingly, plugging balls are rotationally arranged in the ball openings correspondingly, connecting rods are fixed to the upper portions of the peripheral sides of the plugging balls correspondingly, round blocks are fixed to the upper ends of the connecting rods correspondingly, and springs are fixed to the upper end faces of the round blocks correspondingly. According to the utility model, the ball sealer is pushed by the spring, so that the ball sealer can be stably positioned at the inner position of the ball opening, and meanwhile, the water pressure can be improved and the water flow can be improved by adjusting the length between the telescopic cylinder and the movable cylinder.

The present invention relates to the technical field of drinking water products, and discloses a water outlet nozzle with rapid condensation and exhaust and an instant hot water dispenser thereof, comprising a water outlet shell, a water outlet cavity for water supply and flow is arranged in the water outlet shell, a water inlet joint connected with the water outlet cavity is arranged at one end of the water outlet shell, a first exhaust pipe connected with the water outlet cavity is arranged on the water outlet shell near one end of the water inlet joint, one end of the first exhaust pipe extends to the upper end of the water outlet cavity, and the other end thereof extends to the outside of the water outlet shell; a condensation pipe is fixed in the first exhaust pipe, one end of the condensation pipe extends into the water outlet cavity along the first exhaust pipe, and the other end thereof extends to the outside of the water outlet cavity along the first exhaust pipe. The water vapor in the water outlet cavity will quickly condense into water when it touches the condensation pipe, and will be discharged from the water outlet shell through the first exhaust pipe, and the condensation pipe effectively reduces the temperature in the water outlet cavity, and after the temperature is reduced, the generation of hot air in the water outlet cavity can be reduced, thereby reducing the mixing of water vapor, and playing a role in improving the flow state of the water outlet.

The invention relates to an ecological flow control type comprehensive trash holding structure which comprises a grit chamber and a flow passing assembly arranged on the first side wall of the grit chamber. The interior of the grit chamber is divided into a water flow section, a transition section and a sedimentation section which are sequentially connected, the height of the middle bottom of the water flow section is larger than that of the middle bottom of the sedimentation section, the longitudinal section of the transition section is of an inverted-S-shaped structure, and inlet water sequentially passes through the water flow section, the transition section and the sedimentation section and then is introduced into a downstream water body from the overflowing assembly. The grit chamber has the beneficial effects that the structural design of the water flow section, the transition section and the settling section in the grit chamber can optimize the flow state of water flow, reduce turbulent fluctuation of a water body and facilitate settling of suspended particles, and in addition, submerged plants are planted at the bottom of the grit chamber, so that settled nutrients can be degraded and absorbed; the overflowing assembly can comprehensively intercept floating objects and suspended objects carried by upstream incoming water, the upstream water level is stably adjusted, and the hydraulic retention time and the discharged ecological flow are controlled.

This invention discloses an intelligent heating system for instant water heaters, comprising an inlet water area including an inlet water temperature detection module mounted on an inlet pipe; an outlet water area including an outlet water temperature detection module mounted on an outlet water pipe; and a control module. The signal output terminal of the inlet water temperature detection module is connected to the second signal input terminal of the control module, the signal output terminal of the outlet water temperature detection module is connected to the third signal input terminal of the control module, and the first signal output terminal of the control module is connected to the signal input terminal of a stepper motor drive module. If the outlet water temperature is lower than the preset value, the control module calculates the required water inlet flow based on the difference between the outlet water temperature setpoint and the inlet water temperature to adjust the outlet water temperature to reach the preset value, allowing users to use hot water at the preset temperature and improving the user experience.

The invention relates to the technical field of engineering hydraulics, in particular to a curve water flow optimization method based on rough strip flow guide effect evaluation index analysis, which comprises the following steps of: arranging a measurement section and a measurement point at a curve section to obtain water depth, flow velocity and flow data, introducing a water surface transverse gradient discrete coefficient and an average flow velocity discrete coefficient as evaluation indexes, and optimizing the curve water flow. The method comprises the following steps: determining a calculation section, constructing an original data matrix, carrying out forward and standardized processing on a coefficient, calculating an information bearing capacity, determining a weight, calculating a diversion speed reduction weighting coefficient by adopting a multi-index comprehensive weighting method, introducing a dynamic adjustment coefficient, and optimizing rough strip arrangement parameters in combination with a genetic algorithm and a local search strategy. The weighting coefficient adapts to the water flow energy change, the global optimal solution can be efficiently searched, the curve water flow form is improved, the downstream river channel scouring is relieved, and the stability of the release structure and the downstream river channel is improved.

This invention discloses a bidirectional elbow-shaped water inlet channel and a pumping station, comprising a first elbow-shaped water inlet channel and a second elbow-shaped water inlet channel. Both the first and second elbow-shaped water inlet channels are composed of a straight section and an elbow-shaped section, and the first and second elbow-shaped water inlet channels share a single elbow-shaped section. The elbow-shaped section is rotatably connected to the straight section, and the ends of the elbow-shaped section connecting to the straight section are both arc surfaces. The elbow-shaped section rotates around its vertical axis, and the circle formed by the rotation path coincides with the arc surfaces of the first and second elbow-shaped water inlet channels. Therefore, the elbow-shaped section can be connected to either the first or second elbow-shaped water inlet channel. Since the inlet directions of the first and second elbow-shaped water inlet channels are different, the bidirectional water inlet function of this elbow-shaped water inlet channel can be realized to adapt to a bidirectional pumping station.

This utility model discloses a tank-type stacked pressure-free variable frequency secondary water supply device, relating to the technical field of water supply equipment. It includes a flow stabilizing tank, a pump assembly, a pressure stabilizing tank, and a detection assembly. The flow stabilizing tank is connected to the equipment's inlet pipe. The pump assembly is connected to the outlet pipe of the flow stabilizing tank and includes multiple pump units, each independently frequency-controlled, pumping water to the outlet pipe. The pressure stabilizing tank is connected to the outlet pipe and used to balance water pressure fluctuations. The pressure stabilizing tank includes a shell and multiple air chambers, each with a different internal pressure. The detection assembly, located on the outlet pipe, includes a pressure sensor and a pressure switch. The pressure sensor detects water pressure changes on the outlet pipe, and the pressure switch controls the start and stop of the pump units. The technical solution provided by this utility model aims to solve the problem of insufficient capacity of traditional large-capacity single-chamber tanks to cope with high-frequency pressure fluctuations, ensuring a stable water supply.

The invention relates to the technical field of water supply and drainage intelligent detection, and discloses a water supply and drainage blockage and overflow detection method and system based on the Internet of Things, and the method comprises the steps: installing a sensor at a position corresponding to a facility, and obtaining data such as flow, liquid level and pressure; standardizing the data, transmitting the standardized data to a central control platform through an Internet of Things communication protocol, and displaying a real-time pipeline state; the flow condition, the pressure change, the liquid level monitoring and other information are compared with preset monitoring index standards, the difference between a read value and a set threshold value is compared in real time, the liquid level exceeds the preset upper limit (overflow) or the flow suddenly drops (blockage), an alarm is generated, and alarm information is pushed and sent to related personnel through a short message, an E-mail or an intelligent terminal. The system comprises a data acquisition module, an information display module and an alarm output module. Through application of the Internet of Things technology, intelligent management of the water supply and drainage system can be realized.

The utility model discloses an underground drainage pipe network dredging device, and relates to the technical field of pipeline dredging. The device comprises a bottom plate, two first rolling wheels are symmetrically and rotatably connected to the two sides of the bottom plate, a water tank is fixedly connected to the top of the bottom plate, a water inlet pipe is fixedly connected to one side of the water tank and communicates with the water tank, a water pump is arranged in the water tank, and a water outlet pipe is fixedly connected to the water outlet end of the water pump and communicates with the water pump; the end, away from the water pump, of the water outlet pipe penetrates through the water tank and is fixedly connected with a first spray head, a plurality of second spray heads are fixedly connected to the outer surface of the first spray head at equal intervals, a smashing mechanism is arranged at the top of the water tank, and an intercepting mechanism is arranged at the bottom of the bottom plate. Therefore, channels for water flow to pass through are increased, agglomerates can be washed out along with the water flow more easily, and the water flow rate and effect of the underground pipe network are improved.

The invention discloses a transfer device for preventing displacement during stainless steel pipeline processing, comprising a limit roller, a limit plate, a fixed plate and a welding table, wherein the limit plate is symmetrically mounted on the limit roller and movably arranged. When the pipeline transfers slowly, the water flow rate of the water pipe is increased by sliding and shrinking the closing plate inward, and the pipeline temperature is reduced by heat exchange between the water pipe and the heat guide sleeve to prevent the pipeline from being deformed at high temperature. When the pipeline transfers quickly or at a normal rate, similarly, the water flow rate is reduced to prevent the heating effect on the pipeline from being reduced. When the transfer is slow, the heated cleaning liquid is diverted to the water collecting tank in the fixed table, so that the cleaning nozzle sprays the cleaning liquid to clean the steel parts at high temperature. When the transfer is fast or at a normal rate, water vapor is sprayed from the cleaning nozzle, thereby reducing the water spraying amount while maintaining the cleaning effect. The steel is heated and cleaned by the heated cleaning liquid, which is convenient for the steel to be deformed during the transfer process.

The present invention relates to a tailwater artificial wetland treatment system and method for enhanced denitrification and phosphorus removal, which comprises a pre-pond, a micron aerated vertical submerged flow wetland, a vertical submerged flow wetland, a horizontal submerged flow wetland and a stabilization pond arranged in sequence; an immersion bioreactor is arranged in the pre-pond, an integrated air / water distributor is arranged at the bottom of the micron aerated vertical submerged flow wetland, a calcareous centimeter stone and a slow-release carbon source composite functional filler are arranged in the vertical submerged flow wetland, and a slow-release carbon source composite functional filler and a sulfur iron functional filler are arranged in the horizontal direction in the horizontal submerged flow wetland. The system first performs preliminary purification, and then performs heteroaerobic denitrification and autoaerobic denitrification in deep purification, and simultaneously enhances phosphorus removal. It has the advantages of reasonable structural design, uniform water distribution and water collection, strong synchronous denitrification and phosphorus removal capabilities, and good winter operation effects, and significantly improves the denitrification and phosphorus removal capabilities and self-repair capabilities of the tailwater artificial wetland system, and has the advantages of ecological naturalness, high efficiency and stability, simple maintenance, and economical and practical.

The invention relates to the technical field of water supply and drainage, in particular to a seawater cooling pipeline system and a control method thereof.The seawater cooling pipeline system comprises a pump outlet water taking pipeline, a water conveying pipeline, a standby pipeline and a water drainage pipeline; the pump outlet water intake pipeline is connected with a water intake pump station; each pump outlet water taking pipeline is connected with one water conveying pipeline through a first pipeline, each pump outlet water taking pipeline is connected with a second pipeline through a water taking branch line, and the second pipeline is connected with the other water conveying pipeline; pump outlet water taking pipelines are provided with first valves, and water taking branch lines are provided with second valves; the pipeline system is further provided with a user side water conveying switching system and a user side drainage switching system. And a pipeline switching system is arranged between the user side water delivery switching system and the second pipeline. The standby pipeline in the pipeline system can serve as a water conveying pipeline or a water discharging pipeline temporarily, shutdown operation is not needed when the pipeline breaks down or needs to be overhauled, and normal operation of the water taking and discharging pipeline can be continuously kept.

The utility model relates to the technical field of chemical production, in particular to an anti-blocking propane removal tower reboiler structure. The reboiler comprises a reboiler body, a first pipeline connected with the top of a rectifying tower is installed at the top of the outer wall of the reboiler body, a second pipeline connected with the outer wall of the rectifying tower is installed at the bottom of the outer wall of the reboiler body, and a flushing pipe for flushing sodium salt blocked in the reboiler body is installed on the outer wall of the second pipeline. An opening and closing assembly for opening and closing the flushing pipe is installed on the outer surface of the flushing pipe, and a control assembly for controlling flushing water flow is arranged on the outer wall of the second pipeline. According to the utility model, the flushing pipe is additionally arranged on the pipeline II for connecting the rectifying tower and the reboiler body, and water flow in the flushing pipe is controlled through the opening and closing assembly and the control assembly, so that sodium salt blocked at the pipe orifice of the reboiler body is flushed, and the pipe orifice of the reboiler body is prevented from being blocked.

The present invention relates to an impeller structure and its application. The impeller structure has an axis located in the center and a plurality of blades distributed at intervals along the circumferential direction on the outer peripheral wall of the axis. The blade has an upper section and a lower section connected to each other. The upper section is a centrifugal blade, and the lower section is an axial flow blade that gradually bends from top to bottom along the rotation direction of the axis. The axial flow blade is formed by a first sheet body with a first curvature and a second sheet body with a second curvature connected to each other. In the open double pump system of the present invention, the second accommodating chamber, the first accommodating chamber and the upper impeller located in the upper part are for bottom spray water supply, and the third accommodating chamber and the impeller structure located in the lower part are for top and / or middle spray water supply. Since the power of the two water flows is independently supplied by the corresponding pumps, the head and water flow of each water flow are increased, which is conducive to improving the cleaning effect. The double pump system of the present invention is easy to disassemble and assemble. The upper shell is removed from the lower shell, and the upper shell, the upper impeller and the lower shell can be cleaned to avoid bacterial growth.

The invention relates to the technical field of mixed-flow pumps, and particularly discloses a vertical two-way mixed-flow pump flow guide device which comprises a mixed-flow pump body, a water outlet flow guide device is arranged above the mixed-flow pump body, a water inlet flow guide device is arranged below the mixed-flow pump body, and the water inlet flow guide device comprises a flow guide cone. A cover plate is arranged on the upper side of the flow guide cone, a plurality of reserved holes are evenly formed in the circumferential side of the flow guide cone, and a water inlet horn corresponding to the water inlet flow guide device is arranged on the lower portion of the mixed-flow pump body. Water flow is optimized through the box culvert type water inlet flow channel and the water inlet flow guiding device, it is ensured that the two-way water inlet flow state is uniform and smooth, bad flow states are reduced, the operation stability of the mixed-flow pump is improved, kinetic energy loss is reduced through the two-way elbow water outlet flow guiding device, a diffusion pipe is prolonged, the water outlet effect and efficiency are improved, meanwhile turbulent flow and vibration are avoided, and the flow guiding device is simple in structure and low in cost. The construction difficulty is low, installation and maintenance are convenient, and the overall construction and production cost is reduced.

The utility model provides a water inlet filtering piece of a submersible electric pump, and belongs to the technical field of pumps. The technical problem that a water inlet filtering piece of an existing submersible electric pump is low in water absorption efficiency is solved. According to the water inlet filtering piece of the submersible electric pump, the submersible electric pump comprises a motor shell and a pump shell which are fixedly connected with each other, the lower portion of the pump shell is fixedly connected with the water inlet filtering piece, the water inlet filtering piece comprises a water inlet ring part and a filtering ring part which are integrally formed, the filtering ring part is located on the inner side of the water inlet ring part and coaxially arranged, and a water inlet gap is formed between the filtering ring part and the water inlet ring part; the filtering ring part is fixedly connected with the upper end part of the water inlet ring part through a fixed connecting part, and a fixed seat is arranged at the lower end part of the water inlet ring part and is not in contact with the filtering ring part. The utility model has the advantage of improving the water absorption efficiency.

The utility model relates to the technical field of marine organisms, and discloses a marine organism sample temporary storage box which comprises a shell and an inner container which are connected through a damping component. A fluctuating area and a smooth area are arranged in the inner container. A partition plate is arranged between the fluctuating area and the smooth area; the bottom surface of the fluctuating area is a fluctuating surface; a microporous aeration pipeline is further arranged at the bottom of the inner container and penetrates through the fluctuating area and the smooth area, and a plurality of aeration holes are uniformly distributed in the microporous aeration pipeline; under the aeration of the microporous aeration pipeline, micro water flow is generated in the smooth area, the water flow of microporous aeration is enhanced in the fluctuating area through the fluctuating surface at the bottom of the fluctuating area, and water flow stronger than the water flow in the smooth area is generated; according to the utility model, small airflow is formed while oxygen dissolving efficiency is improved through aeration at the bottom of the box body, the water flow effect is improved by combining an uneven structure at the bottom of the fluctuating region, the water flow difference of the two regions is realized, and classified storage is facilitated.

The utility model provides a kind of tofu block draining rack that can be layered and drained, it is related to tofu block draining rack technical field, including support frame, the upper portion of support frame is provided with draining mechanism;Draining mechanism includes two fixed frame, the bottom surface of each fixed frame is fixedly connected with the upper surface of support frame, the side surface of two fixed frame mutually close is commonly fixedly connected with six draining racks, the upper surface of each draining rack is fixedly connected with draining frame, the inside of each draining frame is provided with gauze, the outer surface of each gauze is contacted with the outer surface of draining frame.This tofu block draining rack that can be layered and drained, six draining racks are fixed in parallel through two fixed frames on the upper portion of support frame, draining frame and gauze are independently configured in each draining rack, form six independent and parallel draining units, and the effective draining area of draining rack is improved several times compared with traditional single-layer structure by this layered design, and a large number of tofu blocks can be simultaneously accommodated for draining operation.

This utility model discloses a tea bar machine, comprising: a cabinet body, the upper and lower parts of which are divided into a storage chamber and a water storage chamber; an inner tank assembly, the inner tank assembly including an outer barrel chamber arranged adjacent to the storage chamber within the cabinet body, a heating barrel body detachably disposed within the outer barrel chamber, and a heating device; a water pump assembly, the water pump assembly being disposed within the cabinet body; a tea bar machine tabletop, the tea bar machine tabletop being fixed to the top of the cabinet body, and a hinged flip-top on the tea bar machine tabletop; and a tea bar machine backrest, the tea bar machine backrest being detachably connected to the tea bar machine tabletop, and equipped with a water outlet assembly. This utility model features a reasonable structural design. The detachable heating barrel body and heating device within the inner tank assembly facilitate heating and maintenance. The water pump assembly ensures precise water delivery. The flip-top of the tea bar machine tabletop and the detachable backrest facilitate operation of the heating barrel body, achieving overall flexibility and enhancing the user experience.

The invention relates to the technical field of water conservancy projects, in particular to a flow guiding device suitable for a side-type bidirectional inflow pump station and an optimization method thereof.The flow guiding device comprises a lifting unit, and the lifting unit comprises a telescopic assembly, a lifting assembly arranged on the inner side of the telescopic assembly and driving assemblies arranged at the two ends of the lifting assembly; and the transportation unit comprises a transportation assembly arranged on the lower side of the pump station forebay. The device has the beneficial effects that through the arrangement of the main body component and the conveying component, after the device is applied to the side type two-way inflow pump station, the inflow flow state of water flow in a forebay of the pump station can be improved, adverse flow states such as backflow, bias flow and vortex can be reduced, and energy loss can be reduced under the working condition that flow comes from the two sides of a river. Meanwhile, the water inlet flow state of the water pump can be improved, impact of water flow on the internal structure of the pump station is reduced, and therefore the operation efficiency, safety and stability of the pump station are improved.

The utility model discloses a pre-buried clean floor drain not easy to block and seep water, which comprises a shell structure used for performing multi-stage sealing pre-burying on the ground, a detachable sinking type filter basket is further arranged in the shell structure, the shell structure comprises a shell body, a countersunk head groove is arranged on the upper side in the shell body, and the countersunk head groove is arranged in the shell body. A connecting ring is further arranged on one side of the outer surface of the outer shell, a transverse filling groove is formed in the surface of one side of the connecting ring, a longitudinal filling groove is formed in the surface of the other side of the connecting ring, an auxiliary water outlet pipeline is further arranged on one side of the outer shell and communicates with a main water outlet pipeline, and the main water outlet pipeline is connected with a main water outlet. According to the invention, the sealing performance is enhanced, the phenomena of glue failure, crack and water seepage at the joint are not easy to occur, the influence of accumulated water on the ground is reduced, the breeding of bacteria in gaps and the generation of peculiar smell are reduced, and unsmooth water discharge caused by accumulation of solid impurities at the ground water inlet is avoided.

The utility model relates to the technical field of water treatment, and discloses a flocculation reaction tank grid bar which comprises a first grid bar plate and a second grid bar plate, the first grid bar plate comprises a first grid bar frame plate, a first lattice bar is installed at the top of the first grid bar frame plate, a first grid plate groove is formed in the first lattice bar, and a second grid plate is installed in the first grid plate groove. The flocculation reaction tank grid bar has the advantages of being simple in structure, convenient to manufacture and the like, the impact force of water flow on the grid bar is reduced through the grid bar of the conical structure, the service life of the device is prolonged, the water flow state of the grid bar is improved through the design of the conical structure, and the water flow rate of the grid bar is improved. The grid flocculation reaction tank has the advantages that accumulation of flocculates outside the grids is avoided, a more ideal flocculation effect is achieved, the problem of sedimentation of the flocculates on the grids and the problem that the effluent quality is reduced along with running time are basically solved, and the effluent quality is further improved compared with that of an existing grid flocculation reaction tank.

This utility model relates to the field of marine aquaculture technology, and in particular to a seawater circulation filtration device for marine aquaculture farms. It includes a filter box, with an inlet pipe connected to the inside of the filter box on one side and a drain pipe connected to the inside of the filter box on the side away from the inlet pipe. A small water pump is fixedly installed inside the filter box, and a first filter plate and a second filter plate are fixedly installed in the middle of the filter box. A cleaning mechanism for cleaning the first and second filter plates is provided inside the filter box. This seawater circulation filtration device for marine aquaculture farms improves purification efficiency through a double-layer, graded filtration structure. Combined with an intelligent cleaning mechanism, it achieves automatic cleaning of the filter plates, effectively preventing clogging and ensuring stable system operation. Simultaneously, it adopts a reverse roller brush synchronous cleaning design for more thorough cleaning, reducing manual maintenance costs, and is suitable for the high-efficiency circulating water treatment needs in complex marine environments.

The utility model belongs to the technical field of faucets, and particularly relates to a multifunctional kitchen faucet which is characterized in that a water outlet pipe is arranged on the top surface of a base, a water inlet pipe is connected to the bottom of the base, a waterfall type water outlet device is mounted on the side surface of the base, and a water outlet control device for controlling a water outlet mode is arranged at one end of the base; flexible switching of different water outlet modes is achieved by operating the water outlet control device, diversified water use scenes are met, when the waterfall type water outlet function is started, water flow is evenly sprayed out from the multiple water outlets, the waterfall-like water flow effect is formed, the large-area water flow distribution mode is very suitable for cleaning large kitchen ware, fruits and vegetables and other objects, and the water supply effect is good. And the flow slowing assembly is arranged in the water inlet pipe and used for relieving the impact force generated when water flow enters the base, stabilizing the water flow pressure, reducing the water flow noise, reducing the impact of the water flow to the interior of the water inlet pipe and prolonging the service life.

The utility model discloses a building material sprayer which comprises a cart, the upper side of the cart is fixedly connected with a top plate, the upper side of the cart is fixedly connected with a paint pump and a water pump, the front side of the paint pump is fixedly connected with a feeding pipe, the upper side of the top plate is provided with a cleaning unit, the cleaning unit comprises a fixing block, and the fixing block is fixedly connected with the top plate. The fixing block is fixedly connected to the right side of the top plate, a rotating rod is rotationally connected to the outer side of the fixing block, a winding roller is fixedly connected to the outer side of the rotating rod, a rotating handle is fixedly connected to the front end of the rotating rod, a connecting opening is fixedly connected to the left side of the paint pump, and a discharging pipe is fixedly connected to the outer end of the connecting opening. By arranging the cart, the spraying head, the discharging pipe, the fixing block, the rotating rod, the winding roller, the top block, the fixing ring, the conveying bin and the scraping ring, the winding roller can conveniently rotate to drive the discharging pipe to move, soil on the surface of the discharging pipe is removed through the scraping ring on the conveying bin, and operation is easy.