23results about How to "Reduce water flow rate" patented technology

The invention relates to a self-circulation cooling type shield pump which comprises a pump body and a cooling device, a liquid inlet cavity and a cooling cavity are formed in the pump body, a shielding cover is arranged in the pump body and communicates with the liquid inlet cavity and the cooling cavity, a hollow rotating shaft is rotationally connected to the interior of the shielding cover, and a plurality of impellers are arranged at the two ends of the hollow rotating shaft correspondingly; the cooling device is used for cooling the pump body and comprises a plurality of cooling pipes and a conveying assembly, the cooling pipes are evenly distributed along the outer surface of the pump body, two of the cooling pipes communicate with the liquid inlet cavity, and the conveying assembly is used for conveying liquid in the liquid inlet cavity into the cooling pipes. Liquid in the liquid inlet cavity is conveyed into the multiple cooling pipes through the conveying assembly, the cooling pipes can increase the heat dissipation area of the surface of the pump body, then the liquid flows through the cooling pipes to dissipate heat of the cooling pipes, and cooling and heat dissipation of the outer side of the pump body are enhanced; in the working process of the shield pump, heat dissipation can be conducted on the interior and the exterior of the shield pump, and the heat dissipation performance of the shield pump is improved.

The invention discloses a filtering device for a water inlet pipeline of a sprinkling machine, which belongs to the technical field of filtering equipment, and is technically characterized by comprising a mounting seat mounted in a water inlet pipe, and a driving mechanism arranged in the mounting seat and penetrating through the mounting seat, one side of the driving mechanism is movably connected with the outer wall of the mounting seat, a clamping mechanism is arranged on the driving mechanism, one end of the clamping mechanism is fixedly connected with the driving mechanism, and the clamping mechanism is distributed around the circumference of the driving mechanism; one end of the fixing frame is connected with the clamping mechanism, the other end of the fixing frame is connected with a filter screen, the filter screen is arranged in a water inlet pipe, and the water-soluble fertilizer has the advantages that the water-soluble fertilizer can be fully dissolved in water, the fusion time of the fertilizer and the water is prolonged, the dissolution rate of the fertilizer is increased, and the fertilizer effect of the water-soluble fertilizer is improved.

The utility model discloses an assembly type water wave imitating permeable dam structure which comprises a dam head component, a dam body component and a dam root back plate component, the dam body component comprises a plurality of unit components which are connected end to end in the longitudinal direction, the head end of the dam body component is connected with the dam head component, and the tail end of the dam body component is connected with a dam root back plate in a closed mode; each unit component comprises an upstream face, a downstream face, a dam top portion and a dam bottom portion which are connected in a surrounding mode, the interiors of the unit components penetrate in the longitudinal direction to form a water wave simulating permeable cavity, the transverse middle of each dam bottom portion protrudes upwards to form an arch support, and the two transverse sides of each dam bottom portion extend outwards to form dam toes; the dam head component and the dam body component are each provided with a water permeable mechanism. By adopting the water-wave-imitating structural form, the water pressure generated by water flow on the dam body can be effectively reduced, and the stability of the dam body can be improved; the fabricated structure is adopted, so that the site construction operation time can be shortened, the contradiction between construction and navigation is relieved, the project quality can be improved, and fine management and green construction are achieved.

The utility model relates to the technical field of water flow detection, and particularly discloses a water flow sensor which comprises a flow guide pipe, a Hall element arranged on the flow guide pipe and a water flow rotor assembly rotationally connected in the flow guide pipe, and a flow blocking structure is further arranged in the position, behind the water flow rotor assembly, of the flow guide pipe in the water flow inflow direction. The flow choking structure comprises a flow choking block coaxially arranged in the flow guide pipe and capable of sliding, a bottom inclined ring groove formed in the bottom end of the flow choking block and an inclined table arranged in the flow guide pipe and attached to the bottom inclined ring groove, and the outer diameter of the flow choking block is smaller than the inner diameter of the flow guide hole. And at the moment when hot water is started, the impact force of water flow may push the water flow rotor to rotate to trigger a water flow speed threshold value set in the controller.

This invention relates to the field of wastewater treatment technology, and more particularly to an urban domestic wastewater treatment device including a treatment pump station. The top of the outer arc surface of the treatment pump station is provided with a flange inlet, and the bottom of the inner arc surface of the treatment pump station near the flange inlet is connected to a conical flow guide plate. The upper surface of the conical flow guide plate is provided with an inlet in the middle. The conical flow guide plate is a double-layered structure with an arched end inside. Through a special structural design, the water flow is guided to form a slow flow state, providing sufficient reaction time for the coalescence of tiny oil droplets. This promotes the fusion of emulsified oil droplets and dispersed oil droplets to form large oil droplets. Utilizing the physical property that the density of oil is less than that of water, the oil droplets can naturally float to the surface and form a stable floating oil layer. The entire oil-water separation process does not require additional power and can be completed solely by gravity, effectively improving the oil-water separation efficiency while reducing the energy consumption and maintenance costs of the device.

Described is a high-pressure washer (100) comprising:-a pump (40) and an electric motor (50) configured to drive the pump (40), where the pump (40) is connected to an inlet conduit (15) for liquid to be pressurized and to a delivery conduit (20) for liquid pressurized by the pump (40); -an electronic circuit (200) controlling the power supply of the electric motor (50); -wherein the electronic circuit (200) comprises an electronic control unit (60) operably connected to the electric motor (50); characterized in that the electronic circuit (200) is configured to vary the rotational speed of the motor (50) by varying the waveform of the current supplied to the motor (50) in order to vary the flow rate of the liquid pressurized by the pump (40) in the delivery conduit (20).

The water outlet device comprises a body and a switching piece, the body is provided with a first water outlet channel and a surrounding type water channel surrounding the first water outlet channel, and the surrounding type water channel is provided with a second water outlet channel, a third water outlet channel, a fourth water outlet channel and a fifth water outlet channel which are suitable for independent water outlet; the switching piece is arranged on the body and suitable for switching water outlet of the first water outlet channel and / or the second water outlet channel and / or the third water outlet channel and / or the fourth water outlet channel and / or the fifth water outlet channel. Through the switching action of the switching piece, independent water outlet and combined water outlet of all the water channels are achieved, so that the water outlet modes are more diversified, a user can select large-area bathing and small-area bathing, use by the user is facilitated, and water waste is reduced.

The utility model relates to the technical field of chemical engineering, in particular to a uniform acid hydrolysis device which comprises a hydrolysis tank, a water distribution assembly, sewage discharge assemblies, a water inlet pipe, a filler assembly and a mud bucket, the mud bucket is arranged at the lower end in the hydrolysis tank, a plurality of sewage discharge assemblies are arranged at the upper end of the mud bucket, the water distribution assembly is arranged above the sewage discharge assemblies, and the water inlet pipe is arranged above the water distribution assembly. A water inlet pipe is connected to the upper end of the hydrolysis tank, a plurality of groups of stuffing boxes and water collecting tanks are arranged at the upper end of the hydrolysis tank, clamping grooves are formed in one sides of the upper ends of the hydrolysis tank and the stuffing boxes, a plurality of groups of first mounting grooves and second mounting grooves are formed in the upper ends of the stuffing boxes, and drainage holes are formed in the upper parts of the stuffing boxes; a mixing chamber is arranged in the hydrolysis tank, the water distribution assembly is composed of a water distribution pipe, a water inlet, a water outlet and a mounting base, the sewage discharge assembly is composed of a sewage discharge connector, a sewage discharge pipe and a sewage inlet pipe, and the filler assembly is composed of filler, a lifting rope, a mounting frame and a supporting frame.

The present invention discloses a lignite unit intelligent fuel wet coal preparation system, and relates to the technical field of wet coal preparation. The present invention comprises a bracket; a jigging assembly, which is fixed on the bracket; an air intake device, which is fixed on one side of the jigging assembly, and its output end is connected with three air valve devices, and the three air valve devices are all sealed and arranged on the upper end surface of the jigging assembly; a discharge port, which is opened on the lower end surface of the jigging assembly; a sieve plate assembly, which is configured into three, which can be slidably arranged in the jigging assembly, and correspond one to one with the three air valve devices; in the present invention, by arranging isolation cotton between the outer bin body and the inner bin body, the vibration influence of the whole device during water flow pulsation can be effectively avoided, and the sound during water flow pulsation can be reduced, and the lignite can be sorted multiple times through the three jigging chambers, thereby improving the accuracy of coal preparation.

A flow guide plate and chilled water tank include a plate body with several water inlets. Each water inlet is connected to a flow guide channel, and the outlet of the flow guide channel forms a water outlet. In use, ambient temperature water is divided into several water flows through the various water inlets and flow guide channels, avoiding the concentration of ambient temperature water in a localized area that impacts the chilled water and reducing the disturbance caused to the chilled water when ambient temperature water enters. In addition, the flow guide channel is provided with a flow guide surface for guiding the water flow, which causes the water flowing through the flow guide surface to change from turbulent flow to laminar flow, reducing the turbulence and flow velocity generated when ambient temperature water enters, further reducing the disturbance to the chilled water, and improving the utilization rate of the chilled water.

The present invention discloses a smart watch capable of monitoring water pressure, comprising: a watch case; a main board, arranged inside the watch case; a through hole, opened on the watch case; a sealing cover, sealed and fixedly connected to the inner wall of the through hole, one end of which is in an open state and the other end is in a closed state, and the open end leads to the outside of the watch case; a pressure sensor, fixedly arranged inside the sealing cover, and its connection point passes through the closed end of the sealing cover and is electrically connected to the main board; a cover, fixedly connected to the sealing cover, and blocks the open end of the sealing cover. In the present invention, water flow needs to pass through a flow hole before impacting the pressure sensor, and the inner wall of the flow hole is rough, and the water flow rubs against the inner wall of the flow hole when flowing through, and the kinetic energy of the water flow is partially converted into heat, and the water flow flows into and converges at one place through multiple flow holes, and impacts and collides with each other, so that the flow velocity of the water flow entering the sealing cover is significantly slowed down, so as to reduce the flow of water near the pressure sensor that monitors the water pressure, reduce the impact on the pressure sensor, and enhance stability.

The utility model discloses a high-capacity multi-stage sedimentation tank for water-rich tunnel construction. The settling pond is of a reinforced concrete structure and comprises a rectangular settling pond body, a longitudinal partition wall in the length direction of the settling pond body and a plurality of transverse partition walls in the width direction of the settling pond body are arranged in the settling pond body, and the interior of the settling pond body is divided into a plurality of first settling cabins located in the middle and four second settling cabins located at the ends of the settling pond body; the size of the second precipitation cabins is smaller than that of the first precipitation cabins, drainage grooves are formed in the upper portions of the partition walls between the adjacent first precipitation cabins, waterproof insertion plates are inserted in the partition walls at the drainage grooves, and water inlet / outlet pipes are arranged on the cabin walls of the second precipitation cabins. Water pipes are arranged on a partition wall between every two adjacent second precipitation cabins and partition walls between the first precipitation cabins and the second precipitation cabins, two sewage disposal pipelines located on the two sides of the longitudinal partition wall respectively are arranged at the bottom of the inner side of the precipitation tank body, and the sewage disposal pipelines pass through the first precipitation cabins; a plurality of sewage disposal holes are formed in the sewage disposal pipeline in each first precipitation cabin.

The utility model discloses a water outlet device which comprises a body provided with a rectification water channel and a water outlet hole communicated with the water outlet end of the rectification water channel. The rectification water channel comprises at least two layers of labyrinth water channels arranged in the first direction, water passes through the labyrinth water channels in sequence, the labyrinth water channels are at least formed by a first water channel and a second water channel which intersect with each other and pass through water in sequence, and due to the fact that the first water channel and the second water channel intersect with each other, the water passing directions are different, local direct flushing of water flow can be prevented; and the water flow is uniformly diffused, and the water is uniform every time the water enters the second water channel from the first water channel or enters the first water channel from the second water channel, so that the effect of sufficient uniformity is finally achieved, the water spray spraying force of the water outlet holes is consistent, and the water shape is uniform. The spray water flow is large, and the single-layer labyrinth water channel is difficult to enable large water flow to be uniformly distributed in a large area in a limited stroke, so that the stroke is doubled by designing the folding multi-layer labyrinth water channel, and enough stroke is formed in the water cavity for rectification.

The invention discloses a self-flushing irrigation emitter and method, the irrigation emitter comprises an irrigation emitter body and a rotation control device, an energy dissipation flow channel is arranged in the irrigation emitter body, and the rotation control device is connected with the irrigation emitter body. When pressure water flow enters the flow channel unit through the water inlet groove, the water flow in the flow channel unit is divided into two strands by the water retaining piece and then enters the next flow channel unit, vortexes are generated in the flow channel unit, water flow energy is consumed, the hydraulic performance is improved, and the water flow velocity is reduced. External wind enables the outer fan to rotate, so that the inner fan is driven to rotate, and airflow is generated in the water retaining piece. As the water blocking piece is made of a breathable and waterproof material, airflow can penetrate through the water blocking piece to enable the flow channel to block the particles to generate turbulent fluctuation, the flow channel is flushed to enable the particles to flow out along with water flow, and the probability that the particles are retained in the flow channel is reduced.

The invention relates to the technical field of underground water in-situ remediation and treatment, in particular to a heavy metal polluted underground water in-situ remediation and treatment device which comprises a material injection shell, a flow dividing pipe is fixed to one side of the material injection shell, five sets of auxiliary pipes are installed at the top of the material injection shell in a penetrating mode, and a main through pipe is fixed to the top of each set of auxiliary pipes; a movable plate is rotatably mounted on the inner side of the material injection shell, a rotating shaft is mounted at the top of the movable plate in a penetrating manner, a supporting plate sleeves the outer side of the rotating shaft, a fixed plate is fixed on the inner side of the material injection shell, two limiting grooves are formed in one side, close to the supporting plate, of the fixed plate, a limiting plate is slidably clamped to the inner side of each limiting groove, and a push plate sleeves the outer side of the top end of the rotating shaft; according to the device, the flow speed can be reduced, meanwhile, the mixing effect of precipitants is greatly improved, and water flows with different heavy metal contents can be classified and treated.

The invention belongs to the technical field of municipal engineering, and particularly discloses a micro-polluted water treatment coupling device which comprises a pond body, a front area, a wetland area and an ecological pond are arranged in the pond body, the front area comprises a water distribution plate, a gravel layer and a biological filler layer, and overflowing holes are formed in the water distribution plate; a first water distribution baffle is arranged between the gravel layer and the biological filler layer; a first overflow baffle is arranged on one side, away from the gravel layer, of the biological filler layer; the humid area comprises a filler area, and a second water distribution baffle and a third water distribution baffle are arranged on the two sides of the filler area respectively; a second overflow baffle is arranged on the side, facing the humid area, of the ecological pond, the bottom of the second overflow baffle is connected with the bottom of the pond body, and the top end of the second overflow baffle is located below the water surface of the pond body. The device has the characteristics of low construction cost, low operation cost, good hydraulic impact resistance, difficulty in blockage, good denitrification effect, stable effluent and the like, and can reduce the concentration of pollutants in the micro-polluted water body, improve the effluent index and reduce the pollution input of the converged water body.

The utility model discloses a ballast water system water level monitoring device which comprises a ballast tank, a fixing pipe is fixedly arranged on one side of the ballast tank in an embedded mode, a floating block is arranged in the fixing pipe in a sliding mode, a fixing rod is fixedly arranged at the top end of the floating block in an embedded mode, and a fixing block is fixedly arranged at the top end of the fixing rod. And a vertical plate is fixedly arranged on one side of the fixed pipe. When in use, the liquid level inside the fixed pipe is the same as the liquid level inside the ballast tank by utilizing the principle of communicating vessels, and the internal area of the fixed pipe is small relative to the ballast tank, so that the liquid level inside the fixed pipe is slightly influenced by the fluctuation of a ship body, and the floating block floats at the upper end of the liquid level inside the fixed pipe and changes along with the change of the liquid level. The floating block drives the fixing rod to move up and down, so that the elastic piece moves along one side of the vertical plate until the elastic piece makes contact with the corresponding trigger switch, the corresponding indicator lamp is lightened, the liquid level height in the ballast tank is determined, and the accuracy of water level monitoring is improved.

The invention discloses a washing additive feeding device which comprises a water storage tank (1) and an upper cover (3) buckled to the top of the water storage tank, and a water path (300) is integrated in the upper cover (3). A water outlet (304) of the water path (300) is formed in the bottom wall of the upper cover (3), and the water outlet (304) is formed towards the interior of the water storage tank (1); and the upper cover (3) and / or the water storage tank (1) are / is provided with a splash-proof structure for preventing inflow water flow entering the water storage tank (1) from the waterway water outlet (304) from splashing. The splash-proof structure is additionally arranged, so that the inflow water flow entering the water storage tank is effectively prevented from generating excessive sputtering, and the remarkable technical progress that the sputtering water flow in the water storage tank is prevented from flowing back into the water path and hindering water outflow of the water path is achieved; in addition, the splash-proof structure can be used for preventing the splashing over-excitation phenomenon from occurring, and the phenomenon that the washing additive mixed liquid entering the water storage tank is splashed to the side wall of the water storage tank, and liquid hanging residues are generated is effectively avoided.

A crop ecological nutritive water generator belongs to the technical field of water purification equipment. A water segregator is arranged on the top of a shell, a water outlet filter is arranged on the upper portion in the shell and sleeved on the outer side of a water inlet pipe, the water segregator comprises an inner cavity and an outer cavity which are annularly sleeved, a water inlet and a water outlet are processed on the water segregator, the water inlet is communicated with the inner cavity, and the water outlet is communicated with the outer cavity. The bottom of the inner cavity is fixedly connected with the top of the water inlet pipe, the bottom of the water inlet pipe is provided with a water inlet filter, a water outlet is provided with a water outlet pipe, the water outlet pipe is divided into a plurality of water outlet branch pipes, and the water outlet branch pipes are provided with magnetized water outlet devices. The crop ecological nutritive water generator solves the problems that when a crop ecological nutritive water generator in the prior art is actually used, the diameter of a water flow channel is narrowed when water flow passes through a magnetic field, the pressure difference between a water inlet end and a water outlet end is unbalanced, and water pipes are broken or water leaks at the joint after long-term use, eliminates the risk of pipeline burst, and meanwhile enhances the magnetic field intensity.

The utility model belongs to the field of bathroom technology discloses a kind of scouring spray head and closestool, closestool uses above-mentioned scouring spray head, and scouring spray head includes spray head main body, and the first body portion of spray head main body has first flow passage, and second body portion is provided with second flow passage, and first flow passage is provided with the contraction section of gradually reducing inside diameter, and the small diameter end of contraction section is located in second flow passage;Barrier block is located in second flow passage, and with the small diameter end of contraction section interval, and barrier block and first body portion between there is the injection port of the communication first flow passage and second flow passage;First body portion is also provided with the water inlet of the communication first flow passage and the liquid injection port of the communication first flow passage;Second body portion is provided with the air inlet of the communication second flow passage;Multiple rectification foaming parts are circumferentially arranged in the inner wall of second flow passage, to improve foaming effect.

The invention discloses a mudstone ecological slope protection structure with a columnar geogrid base bed, which is used for a river channel with a flow rate of less than 4.0m / s, including a layer of block stones laid at intervals on the river channel slope, soil filled between the blocks, and a columnar geogrid base bed buried in the soil, and herbaceous plants planted in the soil, wherein the soil content is 50-60%. The advantages of the structure of the invention are: less block stone usage, less environmental impact, random arrangement of blocks, soil content between blocks can reach 60%, less block stone usage, and reducing the impact of block stone mining on the ecological environment. Good anti-scouring effect and low cost. The geogrid is buried in the soil in a columnar shape to form an embedded effect like a soil nail. The geogrid is entangled with the plant root system, and with the support of the block stone skeleton, the anti-scouring ability of the slope protection is significantly improved. Due to the low cost of the geogrid, the overall cost is not high. It can be applied to slope slope protection with a design flow rate of less than 4m / s.

The invention discloses a riverway silt cleaning device, and relates to the technical field of riverway desilting, and the riverway silt cleaning device is characterized by comprising a fixing frame, the upper surface of the fixing frame is fixedly connected with symmetrically arranged supporting plates, the riverway silt cleaning device further comprises a salvage mechanism, the salvage mechanism comprises a rotating unit, the rotating unit is rotatably connected to the supporting plates, and the rotating unit is fixedly connected to the supporting plates; a fishing box is fixedly connected to the rotating unit; a heater is arranged in the sludge treatment plate, a sludge pushing plate is rotationally connected to the sludge treatment plate, and the rotating unit is matched with the sludge pushing plate; the electricity storage mechanism comprises an outer box body, a speed increaser is fixedly connected to the inner side wall of the outer box body, one end of the speed increaser is matched with the rotating unit, and an electric generator is fixedly connected to an output shaft of the speed increaser. The impact force of river water flow on the river bank of the river bending part is reduced, so that the erosion of the river bank on the outer side of the river bending part is reduced.

The utility model relates to the technical field of oyster production and processing, and discloses a high-efficiency cleaning device for oyster processing, which comprises a device tank shell and a drain pipe arranged on the device tank shell, the rear end of the rotating rod is coaxially connected with a second driving motor, the lower portion of one side of the rotating rod is connected with a side extending plate, a guide column is inserted into the center of the side extending plate, a side extending rod is installed on one side of the surface of the guide column, the other side of the surface of the guide column is sleeved with a reset spring, and a limiting plate is installed at the bottom end of the guide column. According to the high-efficiency cleaning device for oyster processing, after cleaning water is discharged through a drainage pipe, a second driving motor drives a side extension plate to rotate through a rotating rod, so that the side extension plate is parallel to the drainage pipe, and a limiting plate is pushed upwards, so that a guide column and a side extension rod enter the top end of an inner cavity of the drainage pipe to rotate. By means of the mode, the interior of the drainage pipe can be cleaned in time, and the phenomenon that the device cannot be used due to blockage and the like is avoided.