13results about How to "Increase water flow area" patented technology

The utility model belongs to the technical field of urban drainage, and particularly relates to a rainwater drainage device for draining water by means of self weight. Comprising an outer pipe, a closed steel plate, a hemispherical filter cover and a floating cover, the outer pipe is divided into an upper section and a lower section which are respectively arranged above and below the ground; water inlet holes are formed in the side wall of the upper section, and a water seepage micropore array is arranged on the lower section; guide grooves are formed in the two sides of each row of micropore array in the vertical direction; the sealing steel plate can be tightly attached and fixed to the inner side wall of the outer pipe along the guide groove to seal the row micropore array; a permeable hole is formed in the surface of the hemispherical filter cover, is placed from an opening in the top end of the outer pipe, is limited in the upper section and is positioned below the side wall water inlet hole; and the floating cover is provided with a one-way air valve and hermetically covers the top opening of the outer pipe. Under the condition that power is not needed, the drainage speed of rainwater to surrounding stratums is increased, and maintenance is convenient.

The utility model relates to a disposable filter screen which is characterized in that the disposable filter screen comprises a tooth edge, a ditch part and a circular-arch-shaped filter screen, and the ditch part is connected with the tooth edge and the circular-arch-shaped filter screen. The utility model has the advantages of smooth drainage and easy cleaning.

The water inlet connector easy to clean comprises a connector body, a water stop plug, a first elastic reset piece and a water filtering switching assembly, and a water inlet cavity, a water outlet cavity and a partition plate with a water guide hole are arranged in the connector body; a first elastic reset piece in the water inlet cavity abuts against the water stop plug so that the water guide hole can be blocked by the water stop plug. The water filtering switching assembly comprises a filter cartridge, a button, a ball and a second elastic reset piece; the filter cartridge penetrates through the first mounting port and extends into the water outlet cavity, an ejector rod is arranged at one end, close to the partition plate, in the filter cartridge, and a button is arranged at the other end; the second elastic reset piece is arranged in the filter cartridge, and two ends of the second elastic reset piece abut against the button and the filter cartridge respectively; a ball penetrates through the side wall of the filter cartridge, a transition face used for abutting against the ball is arranged on the side wall of the button, a positioning groove is formed in the first installation opening, and when the button axially moves, the ball can be disengaged from or clamped into the positioning groove. The invention further discloses a faucet. The water filtering switching assembly is convenient to disassemble, assemble and clean, and water inflow can be automatically stopped when the water filtering switching assembly is disassembled.

The application provides a water distribution lane structure of a mine underground drainage pump house, belongs to the technical field of mine underground drainage, and is characterized in that: a first water distribution well and a second water distribution well which are independently arranged are respectively connected with a water sump and a water distribution lane, and a shared intermediate water distribution lane is further connected between the first water distribution well and the second water distribution well; each water distribution lane is respectively connected with a water suction well, and at least one water distribution gate valve is arranged at the connection between the first water distribution well, the second water distribution well, the water sump and the intermediate water distribution lane; the application can ensure the operation of the mine underground drainage system when any water sump is cleaned under normal water inflow, can facilitate cleaning and reduce the labor intensity of workers, and can reduce the engineering quantity.

The invention relates to the technical field of seawater aquaculture, in particular to a seawater aquatic animal driving platform and an intelligent aquaculture service system. A spike pulse power current with a pulse width of about 1 ms is applied to the electrode; the electronic fence is perpendicular to the water flow direction by 90 degrees and is transversely arranged at the water intake, so that a stimulation current wall is formed at the water intake; the stimulation current distribution field is an electric field unit which flows from the positive electrode to the negative electrode and is formed by straight lines and arc lines, and a plurality of electric field units are connected in series to form a stimulation current wall; the pulse power signal parameters can utilize electric pulses to stimulate nerves of animals on the premise of ensuring that aquatic animals are not injured, and the aquatic animals are forced to swim back due to discomfort, so that the aim of driving or preventing escape is fulfilled; the electrodes are suspended in the air and can swing freely, water impurities cannot be retained, and a water channel can be guaranteed to be unblocked.

The utility model discloses a water outlet device, including flow channel subassembly, switch valve and casing, flow channel subassembly is located in the casing, switch valve is inserted with flow channel subassembly, and flow channel subassembly has water inlet flow channel, first water flow channel and second water flow channel, and switch valve is used for changing the communication relation of water inlet flow channel and first water flow channel and second water flow channel, and the circumferential side wall of casing is provided with the gap, water outlet device still includes water outlet control assembly, and water outlet control assembly sets up in the water outlet end of first water flow channel, and water outlet control assembly includes first water flow channel and second water flow channel, and part circumferential side wall of water outlet control assembly is exposed from the gap, when rotating or moving water outlet control assembly through the gap, first water flow channel is communicated with first water flow channel or second water flow channel. The utility model can satisfy the demand of different flow of user under different use scene, and can satisfy the demand of various water flower of user to water outlet device, and the water outlet function of water outlet device is enriched.

The invention discloses a filtering piece, a filtering assembly and a bathtub. The filtering piece comprises a flexible strip and a connecting part. A plurality of flexible strips are arranged around the first axis to define a water passing cavity, the flexible strips are arranged at intervals to form water passing gaps, water passes through the water passing gaps and the water passing cavity in sequence, impurities are blocked through the flexible strips to be filtered, the water passing gaps are used for achieving water passing, and due to the fact that the flexible strips are strip-shaped, the water passing gaps formed by the flexible strips at intervals are also strip-shaped, the water passing cavity is provided with the water passing cavity. Compared with a net-shaped water passing gap, production is convenient, and cleaning is convenient. And each flexible strip is suitable for deforming when being pressed, so that the area of the water passing gap is increased, the passing ability of water flow is improved, the displacement of the water flow is increased through the deformation, and blockage is prevented. And when the pressure is not applied, the deformation is recovered so as to allow the water passing gap to recover, so that when the pressure is relieved, the water passing gap becomes smaller, and foreign matters such as hair are prevented from leaking from the water passing gap. And at least one end part of each flexible strip is fixedly connected with the connecting part, so that the integrity of the filtering piece is ensured.

This invention discloses a nucleogranulation device and its operating method, comprising an annular water distribution pipe installed below a tank, a sludge pipe installed on the tank at the bottom of the annular water distribution pipe, and a granulation reaction zone, a concentration zone, a separation zone, an inclined plate clarification zone, and an overflow trough arranged sequentially from bottom to top above the annular water distribution pipe. A packing device is installed in the separation zone; a drain outlet is provided on the overflow trough; a hollow barrel is located at the center of the granulation reaction zone, and an axial flow pump is installed inside the hollow barrel. The axial flow pump is used to pump part of the water in the concentration zone into the central hollow barrel and transport it to the center of the annular water distribution pipe, with the hollow barrel located directly above the annular water distribution pipe. A water flow disperser is installed at the bottom of the annular water distribution pipe. This invention can increase the operating load, increase the treatment depth, effectively improve the operating load and sludge concentration effect, and the discharged sludge can be directly dewatered, thus improving the effluent quality.

The utility model relates to the technical field of valves, and discloses a valve with a filter device, which comprises a valve body, a filter barrel is welded at the bottom end of the valve body, a filter screen is fixedly arranged in the filter barrel, the bottom end of the filter barrel is connected with a dirt collecting hopper through a connecting component, the bottom end of the dirt collecting hopper is fixedly connected with a blow-off pipe, and the blow-off pipe is fixedly connected with the filter device. A lantern ring is slidably connected to the surface of the blow-off pipe, a protrusion is arranged on the surface of the lantern ring, a limiting assembly is arranged at the bottom end of the protrusion, and pressing plates are fixedly arranged on the two sides of the lantern ring; the utility model has the beneficial effects that the water flow area can be increased through the filter barrel, the filter barrel can filter impurities in water through the filter screen, the bottom end of the filter barrel is connected with the dirt collecting hopper through the connecting assembly, filtered matters can be precipitated into the dirt collecting hopper, the dirt collecting hopper can store the filtered matters, the flowing of water can be ensured, and the plunger can be opened, so that the filter barrel can be opened. Filtered substances can be discharged under the action of water flow without dismounting the valve body.

The utility model discloses a throttle valve and water purification equipment, and belongs to the technical field of throttle valve devices. At least two stages of flow limiting holes are formed in the throttling valve, and the water passing area of the adjacent second-stage flow limiting hole in the at least two stages of flow limiting holes is larger than that of the first-stage flow limiting hole. The water passing area of the first-stage flow limiting hole closest to the liquid inlet hole is set to be minimum, the water passing area of the flow limiting holes is increased step by step subsequently, the pressure difference between the front portions and the rear portions of the flow limiting holes is reduced, the flow speed of jet water flow is reduced after liquid enters the throttling valve through the liquid inlet hole, noise of the throttling valve is effectively reduced, and the use experience feeling of a user is improved. For example, the pressure difference before and after the second-stage flow limiting hole is smaller than the pressure difference before and after the first-stage flow limiting hole.

The utility model discloses a novel short-distance efficient horizontal pipe sedimentation device which comprises an A-type sedimentation device frame, a plurality of A-type assembly modules which are tightly connected are installed in the A-type sedimentation device frame, and each A-type assembly module is composed of a plurality of A-type assembly single bodies. The horizontal pipe sedimentation device has the beneficial effects that the A-type sedimentation device frame is designed into a standard module of 10m, 5m, 2m or 1m, so that the requirements of all scenes are met, the horizontal pipe sedimentation device does not need to be independently prepared when being used, the assembly efficiency of the sedimentation device is higher when the sedimentation device is temporarily used, and meanwhile, the inverted V-shaped vertical sludge discharge channel is adopted for discharging sludge, so that the cost is reduced. According to the horizontal pipe sedimentation device, the two A-shaped assembly modules are arranged, so that sludge after sedimentation is discharged more smoothly, the sludge discharging speed is higher, the two A-shaped assembly modules share one inverted-V-shaped vertical sludge discharging channel, the water passing area of the sedimentation device is increased, the water resistance and the filtering speed are reduced, and the sedimentation efficiency of the horizontal pipe sedimentation device is improved.

The utility model discloses a waterproof upper air outlet shutter and a cabinet. The shutter comprises a frame body and a plurality of blades, the cabinet body comprises two side frames located at the left and right positions. The blades are fixedly arranged in the frame body at preset intervals in the vertical direction, and the left ends and the right ends of the blades are connected with two side frames of the frame body; each blade comprises a first guide plate inclining downwards from back to front and a second guide plate arranged on the upper surface of the first guide plate and inclining upwards from back to front, and the second guide plate is suitable for guiding air flow to turn upwards. The shutter can guide air flow to be discharged obliquely and upwards, prevents hot air from being accumulated on the lower side of the cabinet, and can play a waterproof role at the same time.

The embodiment of the invention discloses a tube base structure and a nuclear fuel assembly. The tube base structure for the nuclear fuel assembly comprises a connecting plate, a surrounding plate and a top plate. Wherein the connecting plate comprises a plate body, a plurality of reinforcing ribs, a pipe hole and water passing holes, the guide pipe hole is formed in the plate body, the reinforcing ribs are arranged on the peripheral side of the pipe hole, and the water passing holes are formed in intervals among the reinforcing ribs. The connecting plate comprises a plurality of reinforcing ribs arranged on the peripheral side of the pipe hole, and the intervals among the reinforcing ribs form the water passing holes, so that it can be guaranteed that the connecting plate has a large enough water passing area, meanwhile, the strength of the connecting plate can be improved, connection between the connecting plate and the guide pipe is more reliable, and the service life of the connecting plate is prolonged. Therefore, the connection between the connecting plate and the instrument pipe is more reliable, the connection between the pipe seat structure and the guide pipe and the instrument pipe is more reliable, and the reliability of the nuclear fuel assembly is further improved.