82results about How to "Increase water flow area" patented technology

An improved washer (10, 210, 710) having a quick fill (32, 34) and a quick drain (36, 38) with reduced overall wash time is provided. Means are provided for doing a very cold wash to permit machine washing of fine clothing that heretofore was hand washed or dry cleaned. The washer (10, 210, 710) can be provided with one (30), two (224, 230) or three tanks (750A, B & C, 950A, B & C) for water at three temperatures, very cold (refrigerated), tap or city water supply temperature, or hot water. The very cold can be made by a refrigeration or chilling means (62, 64, 98), located in or adjacent the very cold water tank. The hot water can be provided from or have a heater (230, 320, 750C, 950C) therein one of the tanks. The washer also includes an improved embossed basket (600) with increased surface area. The features can be built into a new washer or retrofitted into an existing washer. Very cold water wash and rinse can be provided so that cloths, and particularly clothes such as made of wool, rayon, acetate or other clothes, such as leathers or furs, usually dry cleaned or hand washed, can be machine washed with the present invention without use of hazardous chemicals or shrinkage.

The invention discloses an anti-fishing type grating trash cleaning machine. The machine is characterized in that: the machine is arranged in a ditch through arranging a frame at a certain inclined angle, a variable speed drive system which is arranged on the upper part of the frame drives a driving chain wheel to rotate, a drag chain is arranged on the left side and the right side of the frame, rake teeth which are arranged between the left and right drag chain form a revolution crawler belt and can revolute between the driving chain wheel and a bottom support wheel; a back gating which comprises a bottom arc-shaped grid bar and a support member is fixed on the back of the revolution crawler belt; and when revolution is carried out, the rake teeth are inserted into grids of the back gating to clean the back gating. The machine, which allows the back gating to be arranged on the back of the revolution crawler belt, makes a small amount of banded or shredded dirt which is remained on the rake teeth and is difficult to remove when the turning slag cleaning is carried out not be rushed into rear clean water, not enter back clean water and be effectively intercepted by the back gating, so the trash cleaning efficiency is substantially improved, and slag is thoroughly intercepted; and the water crossing area is substantially increased, so trash cleaning requirements of low water level ditches or dry periods can be satisfied.

The invention discloses a tooth roller and a grate of a single-tooth roller crusher for crushing sinter cakes, belonging to the field of initial material processing in metal smelting industry. The invention is characterized in that: the tooth roller is produced by inlaying 5-14 crushing toothed rings in a tooth roller that can be available for inlay, the grate is produced by surfacing a grate basic body or conducting secondary casting to form a layer of wear-resisting alloy, wherein the crushing toothed rings comprises 3-4 hocks which are mutually occluded and arranged together in order, a layer of the wear-resisting alloy is formed by surfacing or carrying out secondary casting on the crown and periphery of the hock, the grate basic body is produced by sealing a cast steel groove-shaped body, a water-stop sheet and a sealing cover by welding, and the crushing toothed rings, tooth roller and grate basic body are all can be prepared into a water cooling structure and a half-water cooling structure. According to the invention, the tooth roller and the grate of the full water cooling single-tooth roller crusher have excellent heat resistance and wear resistance because of large flow area and good cooling effect, the processing technology of the hock, the tooth roller and the grate is simple, the replacement is convenient, the cost of processing and maintenance is reduced, and the hock and the grate has good repairability.

The invention discloses a double-acting double-pipe single-bit coring drilling tool and an application method thereof, and belongs to the field of geological exploration boring machines. The double-acting double-pipe single-bit coring drilling tool comprises an inner-outer core barrel connector, an outer pipe, an inner pipe and a drill bit body arranged at one end of the inner pipe. The outer pipe and the inner pipe are fixed to the inner-outer core barrel connector. An annular gap is reserved between the outer pipe and the inner pipe. A water dividing hole is formed in the inner-outer core barrel connector. Four to eight flange ribs are uniformly distributed on the outer side face of the drill bit body and each provided with a step. The steps of the flange ribs are sleeved with the end of the outer pipe. A row of hard alloy drill bits is embedded in the bottom face of the drill bit body, and a row of hard alloy drill bits are embedded in the bottom faces of the flange ribs. The coaxiality and the integral rigidity of the drilling tool are improved by means of the flange rib type drill bits, and vibration of the drilling tool during drilling is reduced; in addition, the rock core sampling quality and efficiency of quaternary loose strata, bed rock weathering zones and coal seam outcrops are remarkably improved; and meanwhile, the drilling efficiency is improved.

The invention discloses a water cooling structure for thermal insulation of a wind tunnel balance. The water cooling structure comprises a support lever and a lever balance connected with the supportlever. The lever balance is sleeved with a water cooling sleeve. Two water paths are arranged in the support lever in the axial direction. The non-measuring component area of the lever balance is provided with two water paths corresponding to the two water paths of the support lever. The two water paths on the lever balance are connected to the water cooling sleeve through a bellows. The cold water circulates in the water paths. The water cooling structure can simultaneously cools the lever balance and the support lever by water, and has a protective effect on the heat conduction and the heatradiation which affect the temperature change of the lever balance. The method for water cooling the outer surface of the support lever is obviously better than a traditional water-cooling ring methodin thermal insulation effect.

The invention relates to an urban and surrounding high-groundwater-level mining subsidence area landscape water body regulation and ecological purification method, which is applicable to the field ofecological treatment of a mining subsidence area. According to collapse pit-pond accumulated water and a water system which are formed in a high-groundwater-level mining subsidence area, a water resource cascade regulation network which uses a main collapse pit-pond as a big water body and uses a surrounding water system as a network system is constructed; a cascade regulation system with different water level height differences is constructed by utilizing the surrounding water system; the water body is subjected to graded regulation by utilizing a water body cascade regulation pool; then theregulated water body is filtered by utilizing a water body ecological filtering method; the filtered water body is subjected to ecological remediation by utilizing an ecological remediation gallery; then the water body is subjected to pollutant cleaning; the cleaned water body is subjected to eutrophication big water body treatment; finally, residual aquatic plants in the water body are removed byutilizing a wind regulation type floating algae collection purse net so as to reduce the water body into ecological water which accords with the standard. The urban and surrounding high-groundwater-level mining subsidence area landscape water body regulation and ecological purification method has simple steps and a good use effect, and can meet water body pollution treatment by utilizing the mining collapse pit-pond accumulated water and the water system.

The invention relates to a method and a device thereof for treating cascade adsorbed water by radiating lateral and vertical flows. In the method, two-stage absorption and filtering are implemented by adopting a closed pressure type device, wherein the first stage adopts a radiation type lateral flow water inlet mode, and the filtering speed of a filter chamber of the lateral flow is reduced gradually along the radius direction; and the second stage adopts a pressure flow vertical water inlet mode from top to bottom, and the filtered water is discharged via a pipeline. The filter materials are red mud-based environmental rehabilitation materials, and the filter layer of each stage of filter chamber is in a homogeneous structure. The filter function of the filter layers is kept through a back washing mode, and the back washing water washes the filter layers from top to bottom and then flows out via pipelines. The device mainly comprises a filter system and a back washing system. The invention not only solves the problem of uneven capacity of the pollutant removal and enhances the treatment effect, but also enhances the back washing effect by adopting a back washing mode from top to bottom and a lateral back washing mode. Compared with the traditional physicochemical-biochemical technique, the method and device of the invention have obvious purification effect.

The invention discloses a steady flow spraying device. A water inlet pipe and a gas inlet pipe are arranged on a base. An atomizing chamber is arranged at the front end of the base. The gas inlet pipe communicates with the atomizing chamber. A plurality of water inlets are formed in the positions, corresponding to the atomizing chamber, of the water inlet pipe and form a water inlet zone. An adjusting structure is arranged in the water inlet zone and used for keeping the flow entering the atomizing chamber from the water inlet pipe unchanged. When water flow enters the atomizing chamber through the water inlets of the water inlet pipe, water drops are broken through blowing and dispersed into smaller fog drops through high-pressure gas, and the atomizing effect is improved; meanwhile, when the water pressure in the water inlet pipe is low, the adjusting mechanism enables the multiple water inlets to communicate with the atomizing chamber, the water flow area is increased, and the flow is unchanged under the condition that the water speed is low; and when the water pressure in the water inlet pipe is high, the adjusting mechanism blocks the corresponding water inlets and enables the corresponding water inlets to communicate with the atomizing chamber, the water flow outlet area is decreased, and the flow is unchanged under the condition that the water speed is high, so that the stability of nozzle spraying is ensured.

A water receiving tank is arranged in a pool, a turning groove is formed in the water receiving tank, and an opening of a pool water inlet pipe is arranged above the turning groove. One end of the water receiving tank is connected with a water outlet pipe of a pool, and a filtering layer is arranged between the other end of the water receiving tank and the pool. The filtering layer can prevent impurities from flowing to users, when the turning groove is full of water, the turning groove is inclined to wash the filtering layer, and the filtering layer can work normally.

The invention discloses a flocculation central driving mud scraper and relates to water treatment equipment. The flocculation central driving mud scraper comprises a central concrete buttress, a central rotating vertical frame, a transmission device, a mud scraping girder, a working bridge, a sewage inlet pipe, a sludge outlet, a conical flocculoreaction cylinder, a medicament inlet pipe and a blender, wherein the sewage inlet pipe, the sludge outlet and the medicament inlet pipe are arranged at the bottom of a tank; the flocculoreaction cylinder is fixedly connected with the working bridge; the blender is arranged on the central concrete buttress; the blender is positioned above the medicament inlet pipe and the sewage inlet pipe; the inlet of the blender of is connected with the medicament inlet pipe and the sewage inlet pipe; and the water outlet of the blender faces the inner conical surface of the conical flocculoreaction cylinder. The flocculation central driving mud scraper has excellent processing effect, ensures that the quality of water reaches standards before discharge, and greatly improves efficiency compared with the conventional simple sedimentation tank, thereby reducing the design diameter of the sedimentation tank and saving investment cost and land resources.

The invention discloses a large-pressure high-flow water saving mechanism. The low-pressure large-flow water saving mechanism comprises a flow adjuster (20) and at least one bypass channel (52), wherein the flow adjuster (20) is provided with a normally open flow channel (51), and each bypass channel (52) is formed inside or outside the flow adjuster (20) and independent of the normally open flow channel (51). The flow adjuster (20) overcomes a reset force under the water flow pressure to slide between at least a first position and a second position. When the flow adjuster (20) is located at the first position, the flow area of each bypass channel (52) is larger than the flow area, existing when the flow adjuster (20) is located at the second position, of the bypass channel (52). The low-pressure high-flow water saving mechanism has the advantages that the normally open flow channel and the bypass channels are arranged, the normally open flow channel is normally open, when the flow adjuster is located at the first position, the flow area of each bypass channel is larger than the flow area, existing when the flow adjuster is located at the second position, of the bypass channel, the flow adjuster overcomes the reset force under the water flow pressure to slide between the first position and the second position, and therefore when the pressure is low, the bypass channels are opened, so a low-pressure large flow can be achieved.

The invention provides a spliced ultra-thin same-floor drainage facility provided with an access port. The same-floor drainage facility comprises a drainage channel and a side drainage structure, wherein the drainage channel is formed by mutually splicing a plurality of strip-shaped converge bottom grooves, and a grate covers the upper parts of the converge bottom grooves; the drainage channel is arranged on a mounting surface by a gradient; the tail end of the drainage channel is the lowest point of the gradient, and the tail end of the drainage channel communicates with the side drainage structure; a water tank and a side drainage pipe are arranged in the side drainage structure; the water tank is matched with the converge bottom grooves of the drainage channel, so that a water seal is formed and the water seal communicates with an external drainage vertical pipe; a cleaning opening is formed in the upper part of the water outlet end of the water tank and the cleaning opening communicates with the converge bottom grooves; an opening cover is arranged on the cleaning opening; and the grate on the converge bottom grooves extends to the side drainage structure and covers the water inlet end and the cleaning opening of the water tank. According to the same-floor drainage facility disclosed by the invention, drainage and converge structures are optimized in a mode of splicing strips; moreover, through the coordination with the side drainage structure, a water passing area is increased, and by virtue of the structure, a cleaning operation is optimized; therefore, the same-floor drainage facility can meet an internal water seal standard, and meanwhile, the same-floor drainage facility can achieve same-floor drainage from a low-level floor slab to a floor drain finished surface.

The invention relates to a flood control and storm drainage water pump station, and belongs to the technical field of water pump stations. The flood control and storm drainage water pump station comprises a water inlet pool, a second connecting pipe, a water inlet pipe, an adjusting pool, a pump room, a water outlet pool, a water outlet pipe, a first connecting pipe, a sludge treatment pool and athird connecting pipe; two clapboards are fixedly arranged on the inner side wall of the water inlet pool, a water filtering cavity is formed between the two clapboards, and a filtering mechanism anda stabilizing mechanism are arranged in the water filtering cavity; a water collecting cavity is formed between the clapboards and the side wall of the water inlet pool, installation grooves are formed in the top ends of the clapboards, and water filtering mechanisms are arranged in the installation grooves; and the stabilizing mechanism comprises an attaching plate attached to the inner bottom surface of the water outlet pool, a driving rod arranged above the attaching plate, and a connecting rod fixedly arranged between the driving rod and the attaching plate, and a driving assembly and a guiding assembly are arranged between the driving rod and the water inlet pool. This flood control and storm drainage water pump station, through mutually cooperating of the third connecting pipe and the stabilizing mechanism, facilitates the discharging of the sludge in the water inlet pool, and the stability and the practicability of the flood control and storm drainage water pump station are improved.

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.

The invention discloses an air cylinder cover. The air cylinder cover comprises a cooling water cavity, wherein the cooling water cavity is divided into an upper-layer water cavity and a lower-layer water cavity by the aid of a separating plate; and a water hole for guiding a cooling liquid in the lower-layer water cavity into the upper-layer water cavity is formed in the separating plate and can guide the cooling liquid in the upper-layer water cavity. The cooling water cavity of the cylinder cover is divided into the upper-layer water cavity and the lower-layer water cavity which are separated by the separating plate, all water flow flows through a lower bottom plate, the cooling effect of a fire plate is enhanced, and meanwhile, auxiliary effects of enhancing the rigidity and the strength of the cylinder cover are also realized; the cooling liquid performs cooling from bottom to top via the water hole, so that the water passing area is increased, and the cooling effect of a bridge zone is enhanced; and the flow direction of the cooling liquid can be adjusted through guidance of the water hole, thus, more cooling liquid flows to the area required to be cooled, and the cooling effect is further improved. The invention further discloses an air cylinder comprising the air cylinder cover.

The invention discloses an adjustable button valve element comprising an upper cover, a shell and a base mounted at the bottom of the shell; a button, a threaded knob, a support frame, a lifting shaft and a shifting structure are sequentially arranged from top to bottom inside the upper cover; the threaded button is sleeved by a gear snap ring, the upper end of the threaded button is clamped in the button, and the lower end of the button supports against and is connected with the gear snap ring; a threaded lifting head is connected to the inside of the threaded button through a screw thread, the threaded lifting head and the upper end of the lifting shaft are clamped into a whole, and the lifting shaft is mounted in a through hole in the center of the support frame; and an upper port of a water outlet channel is covered by a diaphragm, the diaphragm and a pressure relief base are connected into a whole, a water via hole communicating to the water outlet channel is formed in the middle of the pressure relief base, the lower end of the lifting shaft passes through the water via hole and is provided with a snap spring in a snapping way, an O-shaped sealing ring for sealing the lifting shaft is arranged in the water via hole, a clearance slot smaller than the internal diameter of an O-shaped gasket is formed in the lifting shaft, and a water diversion hole communicating to a water inlet hole is formed in the diaphragm.

The invention relates to a filter with a high flow and a good effect. The filter comprises an outer cylinder, a central pipe and a filter net, wherein the outer cylinder comprises a first end plate, a second end plate and a circumferential wall, the central pipe penetrates through the first end plate and enters a filter cavity of the outer cylinder, a first port is formed in the outer end of the central pipe, the inner end of the central pipe is closed, a second port is formed in the second end plate, the central pipe is communicated with the filter cavity through a first circumferential wall hole formed in the circumferential wall, and therefore, a filter channel is formed between the first port and the second port.

The invention relates to the technical field of water treatment, in particular to an inclined plate sedimentation device and a sedimentation tank constructed thereby. The inclined plate sedimentation device comprises a plurality of inclined plate sedimentation units arranged in parallel; each inclined plate sedimentation unit comprises a mud sliding plate, an inlet water baffle and an outlet water baffle; the inlet water baffle and the outlet water baffle extend in the normal direction from a mud sliding surface and are encircled with the mud sliding surface to form a mud sliding channel; a mud discharge port of the mud sliding channel is positioned in a settlement channel at the side part of the inclined plate sedimentation device or at the bottom of the inclined plate sedimentation device; a gap among the inlet water baffle, the outlet water baffle and the adjacent mud sliding plate forms a water through channel; a mudguard vertically extending downwards from the lower end is arranged at the lower end of the mud sliding plate positioned at the mud discharge port in the settlement channel. The inclined plate sedimentation device is low in material consumption and convenient to manufacture, and the water purifying effect is effectively improved.

The embodiment of the invention relates to the field of bathroom equipment, and discloses a bathtub drainer and a bathtub. In the invention, the bathtub drainer comprises: a drainage pipe, three-way pipes, a water stopper, a push rod, a three-way pipe butts the water outlet end of the drainage pipe with the drainage outlet, At least a portion of that push rod is insert into the main path along thethird line, and is connected with the water stopper, A water stop plug is driven by a push rod to move, and the water stopper is movably arranged in the main path of the three-way pipe along the axial direction of the main path, and when the water stopper opens the second pipe, the push rod drives the water stopper to move to the preset position in the direction of the third pipe, and the water stopper is located at the nozzle where the third pipe is connected with the main pipe or at any position where the third pipe is far away from the nozzle where the main pipe is connected with the mainpipe, so as to increase the overflow area of the drainage pipe and the three-way pipe, and effectively improve the drainage flow rate.

The invention belongs to the technical field of wastewater treatment, and particularly relates to a wastewater treatment device and a method. The wastewater treatment device comprises a first sedimentation tank for settling large particles, a second sedimentation tank for removing oil stains in wastewater and a third sedimentation tank for settling fine particles; the device is integrally arranged; the height of a first partition wall is limited, so that the height is lower than the height of the wastewater surface; and the communication with the first sedimentation tank and the second sedimentation tank is adopted; the water flow area can be enlarged; water flow velocity is reduced, particles in the wastewater are precipitated in the first sedimentation tank and the second sedimentation tank to the maximum extent, at the same time, water waves can be transmitted from the first sedimentation tank to the second sedimentation tank, the oil stain floating on the wastewater surface is adsorbed in an oil adsorption device by the pushing force of the water waves, and the oil stain adsorption effect can be improved without additional external force; the third sedimentation tank can be used for precipitating fine particles again, so that the purpose of removing the fine particles is achieved.

The invention discloses a self-cleaned irrigation filter element which comprises inner-side filtering net fixing devices and outer-side filtering net fixing devices, wherein filtering nets are arranged in a folded manner between the inner-side filtering net fixing devices and the outer-side filtering net fixing devices; the folded filtering nets are fixedly connected end to end; the inner-side filtering net fixing devices comprise a first inner-side filtering net fixing device which is positioned at the top end of the filter element and a second inner-side filtering net fixing device which is positioned at the bottom end of the filter element; and the outer-side filtering net fixing devices comprise a first outer-side filtering net fixing device which is positioned at the top end of the filter element and a second outer-side filtering net fixing device which is positioned at the bottom end of the filter element. As the cylindrical horizontal cross section of a screening net is changed into a shape of multiple folding, the water through area is increased, and the discharge capacity of a filter is increased; on the basis that the cylindrical horizontal cross section of the screening net is changed into the shape of multiple folding, dirt accumulation grooves are added at folded parts, filter dirt can be collected, and thus bases are laid for automatic cleaning.

The invention discloses a linear narrow grate gutter inlet grating, the ratio of width and length thereof is 0.25-0.4. The size of gutter inlet grating is optimized, the width of the grating is reduced appropriately and the length of the grating is increased, thus forming the linear narrow grate gutter inlet grating. By utilizing the grating to collect rainwater, rainwater almost can flow the whole grate holes, thus improving water collecting efficiency and speed; and meanwhile the compression strength of the grating is improved, and raw material is saved.

The invention discloses an orthotropic bridge deck slab structure with a draining function. The structure comprises thickened U ribs (1), stainless steel water leaking steel plates (3), water releasing pipes (4) and draining pipes (5), steel bridge deck top plates (2) are arranged above the thickened U ribs (1), the steel bridge deck top plates (2) are opened in a manner of being spaced by a certain distance, the stainless steel water leaking steel plates (3) are arranged in holes in the bottoms of the thickened U ribs (1), the water releasing pipes (4) are arranged below the stainless steel water leaking steel plates (3), the lower portions of the water releasing pipes (4) are connected with the draining pipes (5), the lower segments of the draining pipes (5) are of vertical structures, the draining pipes (5) are arranged between two U ribs on the bottom of a bridge, and accumulated water guided into the thickened U ribs (1) is drained along the water releasing pipes (4) and the draining pipes (5). The draining problem of the orthotropic bridge deck slab can be solved, the draining effect is good, and use durability of the draining system can be improved.

A single-handle double-control thermostatic valve is characterized in that a valve spool is provided with a first hot water incoming passage, a first cold water incoming passage, a first hot water outgoing passage and a first cold water outgoing passage, a fixed ceramic plate is arranged over the valve spool inside a spool sleeve, a moving ceramic plate is arranged on the fixed ceramic plate, the fixed ceramic plate is provided with a second hot water incoming, a second hot water outgoing passage, a second cold water incoming passage and a second cold water outgoing passage, the second hot water incoming passage is communicated with the first hot water incoming passage of the valve spool, the second hot water outgoing passage is communicated with the first hot water outgoing passage of the valve spool, the second cold water incoming passage is communicated with the first cold water incoming passage of the valve spool, the second cold water outgoing passage is communicated with the first cold water outgoing passage of the valve spool, the moving ceramic plate is provided with a hot water control passage and a cold water control passage, the cold water control passage is capable of connecting or disconnecting the second hot water incoming passage and the second hot water outgoing passage of the fixed ceramic plate, and the cold water control passage is capable of connecting or disconnecting the second cold water incoming passage and the second cold water outgoing passage of the fixed ceramic plate. The single-handle double-control thermostatic valve has the advantages that cold water volume and hot water volume of a regulator are not changed when the moving ceramic plate rotates, the moving ceramic plate can turn off or on incoming hot or cold water by sliding, and flow is regulated.

The invention relates to the technical field of kitchen supplies, in particular to a foldable knife and fork basket and a dish washing machine with the same. The foldable knife and fork basket and thedish washing machine aim to solve the technical problems that an existing knife and fork basket is clumsy in structure and inconvenient to use. In order to achieve the purpose, the invention providesthe foldable knife and fork basket. The foldable knife and fork basket comprises a plurality of storage cylinders, and every two adjacent storage cylinders in the storage cylinders are connected in arelative pivoting mode so that the storage cylinders can form a winding drum-shaped knife and fork basket in the circumferential direction or be unfolded into a flat knife and fork basket. Every twoadjacent storage cylinders in the storage cylinders are connected in the pivoting mode so that the storage cylinders can rotate in the circumferential direction to form the winding drum-shaped knife and fork basket or be unfolded into the flat knife and fork basket; therefore, when a user needs to clean tableware in the winding drum-shaped knife and fork basket, the storage cylinders can be flatlylaid in the dish washing machine, and the tableware in the storage cylinders can be cleaned, so that the cleaning effect of the dish washing machine on the tableware in the storage cylinders is improved.

The invention discloses a floor drain, which is used for being mounted on a sewer pipe, and comprises a floor drain core and a turning plate, wherein the floor drain core is used for being inserted into the sewer pipe and is provided with a water outlet at the bottom end; the turning plate is hinged to the floor drain core around the rotating axis; a sealing part matched with the water outlet in shape so as to seal the water outlet is arranged on one side of the rotating axis; a first straight edge and a second straight edge are arranged on the two sides, perpendicular to the rotating axis, of the outer edge of the sealing part; and the maximum distance between the first straight edge and the second straight edge is configured to be equal to the maximum projection width of the sealing part on the rotating axis, so that the first straight edge and the second straight edge do not interfere with the inner wall of the sewer pipe in the rotating range of the turning plate. According to the floor drain, the sealing part is arranged on the turning plate, and the straight edges are arranged on the two sides of the sealing part, so that the two straight edges on the turning plate can ensure that the turning plate cannot interfere with the sewer pipe in advance within the rotating range of the turning plate while the water outlet area of the water outlet of the floor drain core is increased as much as possible.

Belonging to the technical field of filtering equipment, the invention discloses a high flux filter core for a filter. The high flux filter core consists of a pedestal, an upper seat, a first filter layer and a second filter layer. The first filter layer and the second filter layer are both installed between the pedestal and the upper seat, and the first filter layer is located at the middle of the second filter layer, a water inlet channel is formed between the first filter layer and the second filter layer, a water outlet channel is formed at the middle of the first filter layer, and the middle part of the upper seat is equipped with a water outlet communicated with the water outlet channel. According to the invention, by setting the first filter layer and the second filter layer, the sewage filtration speed can be enhanced and the dirt holding effect of the filter core can be increased, the spliced design of the first filter layer, the second filter layer, the upper base and the pedestal can facilitate the replacement of filter membranes, and is convenient for maintenance and cleaning of the filter core.

The invention relates to an internal mud removing construction process for an offshore wind power booster station steel pipe pile. The internal mud removing construction process comprises the steps that S1, the depth of soil in the steel pipe pile (2) is measured; S2, a gas lifting type mud pump is positioned; S3, the gas lifting type mud pump is hoisted, wherein lifting rope sets (65) are arranged on a first lifting lug (61), a second lifting lug (62), a third lifting lug (63) and a fourth lifting lug (64) correspondingly, one ends of the four lifting rope sets (65) are connected to a liftinghook (1) of a crane vessel, the gas lifting type mud pump is hoisted to the preset position of the steel pipe pile (2), and the mud pumping end of a first guide pipe (31) obliquely stretches into thesteel pipe pile (2) until the mud pumping end of the first guide pipe (31) is inserted into the mud face of the steel pipe pile (2); and S4, a gas conveying assembly (4) and a water conveying assembly (5) are started. The internal mud removing construction process has the following advantages that the mud pumping efficiency and the mud pumping thoroughness are improved, and therefore the bearingcapacity of the steel pile is guaranteed.

The invention relates to an internal inflow stepped screen board grid cleaner and belongs to the field of sewage treatment. A rack is a rectangular box with the opened left side and the opened right side; the lower part of the rack is immersed in an intake canal to be treated; a water inlet is formed in the center of an upstream face at the lower part of the rack; water baffles preventing sewage from flowing into the cleaner from the two sides of the water inlet are arranged on the two sides of the water inlet; one end of each water baffle is connected with a side wall of the intake canal; the other end of each water baffle is connected with a side wall of the rack; a screen board chain wheel mechanism comprises a screen board, and a chain wheel arranged at the top end of the rack and driving the screen board to slew; a dump tank is arranged under the chain wheel; the screen board is a slewing filter screen belt formed by a thin steel board and wound on the chain wheel; dense circular holes are uniformly formed in the screen board; the screen board chain wheel mechanism forms a slewing filter channel; and the two sides of the screen board and two side walls of the rack form water outlet channels respectively.