33results about How to "Slow water flow" patented technology

The invention discloses a freshwater shrimp culture tail water treatment system for treatment of the tail water of a culture pond. The freshwater shrimp culture tail water treatment system comprises:a pair of ecological ditches for preliminary purification of culture tail water, a sedimentation tank for sedimentation to remove granular solids in the culture tail water subjected to preliminary purification in the ecological ditches, a filtration dam for filtering solid particles in the culture tail water subjected to sedimentation treatment in the sedimentation tank, an aeration tank for aeration treatment of the culture tail water subjected to filtration treatment by the filtration dam, a biological purification tank utilizing fungi and animals to remove harmful substances, algae and thelike in the culture tail water subjected to aeration treatment in the aeration tank, and a constructed wetland for effective degradation of pollutants and harmful substances in the culture tail watersubjected to purification in the biological purification tank. The freshwater shrimp culture tail water treatment system provided by the invention can effectively remove solid particle impurities in culture tail water, lower the dissolved nitrogen and phosphorus content, and degrade pollutants and harmful substances. The treated culture tail water can reach the culture tail water discharge standard, and can finally be discharged into external rivers or recycle to culture ponds.

The invention relates to a recirculating aquaculture system with a large annular aquaculture pond as a core and belongs to the field of fish aquaculture ponds. The recirculating aquaculture system comprises an aquaculture pond A and an aquaculture pond B which are connected in an internally-externally sleeved mode, wherein a physical filtering pond is arranged on the outer side of the aquaculture pond A, water draining ports are formed in the side faces and the bottoms of the aquaculture pond A and the aquaculture pond B and are connected to the physical filtering pond, a biological filtering pond is arranged in the aquaculture pond B, the physical filtering pond is connected to the biological filtering pond, an anaerobic denitrification reaction pond is connected in the biological filtering pond and is connected to an ultraviolet light sterilization device on the outer side of the aquaculture pond A, the water outlet end of the ultraviolet light sterilization device is connected to an aeration tank, the water outlet end of the aeration tank is connected to a water-mixing pond, water in the water-mixing pond is oxygenated, and the water outlet end of the water-mixing pond is connected to an impeller pump pond. The floor area can be effectively decreased, the space utilization rate can be improved, and the number and sizes of independent spaces in the pond can be flexibly adjusted.

The invention discloses dry hot air-resistant water-retention fertilizer-conservation special-purpose fertilizer for winter wheat. The dry hot air-resistant water-retention fertilizer-conservation special-purpose fertilizer comprises, by weight, 30-36 parts of calcium superphosphate, 36-42 parts of urea, 26-32 parts of potassium sulfate, 1-1.4 parts of boron fertilizer, 1.2-1.6 parts of zinc sulphate heptahydrate, 10-15 parts of fly ash, 0.8-1.2 parts of coated polyglutamic acid, 14-18 parts of biochar and 7-9 parts of bentonite. The dry hot air-resistant water-retention fertilizer-conservation special-purpose fertilizer has good effects, saves time and labor, improves wheat stress resistance and improves soil and a water retention capability of soil.

The invention discloses a construction method for composite insulation mortar. The construction method comprises the following flows of treating a base course wall; painting with interface mortar and installing a fire barrier; setting a vertical control flux line, releasing a line to determine a right angle and determining flatness and perpendicularity, and popping out a thickness control flux line; performing small-scale plastering at a certain point and screeding; performing construction on a macroporous glass bead non-sand insulation layer; performing construction on a composite inorganic insulation layer; treating deformation joints of the base course wall; respectively forming larmiers in a door, a window, a beam bottom and a cornice; verifying the macroporous glass bead non-sand insulation layer and the composite inorganic insulation layer; performing construction on a waterproof anti-crack layer; manufacturing diving joints; performing construction on a facing layer. According to the composite construction method, by using glass beads specially treated as aggregates, macroporous glass bead non-sand insulation mortar and composite inorganic insulation mortar are respectively made up to form a macroporous structure to serve as a core layer of an inorganic insulation system, and macroporous glass bead insulation mortar with a better energy-saving effect is formed by matching with improved graded composite inorganic insulation mortar.

The invention provides bromfenac sodium eye drops and preparation technology thereof, and relates to eye drops and preparation technology thereof. The eye drops comprise the following components in percentages by weight: 0.001-0.15% of a bacteriostat potassium sorbate, 0.10-3.25% of an anti-oxidant sodium bisulfite, 0.04-2.52% of a lubricant magnesium lauryl sulfate, 0.15-0.55% of bromfenac sodium, a pH conditioning agent and injection water. A series of mixing and stirring steps are used in order to prepare the bromfenac sodium eye drops. A stirring mechanism on a base plate as well as stirring fans on a vertical plate and stirring fiber bars arranged on the stirring fans are used for realizing partial stirring in one cubic centimeter, partial stirring can be used for substantially reducing suspended solids, stirring time is shortened, uniform dissolving is realized, content of each component in bromfenac sodium eye drop bulk pharmaceutical chemicals is uniform, stirring efficiency of bulk pharmaceutical chemicals is substantially improved, and current speed during stirring is substantially improved.

The invention belongs to the technical field of artificial fish reefs, and specifically designs an anti-wave artificial fish reef for deep water areas. The anti-wave artificial fish reef comprises a main frame. The main frame comprises a cover horizontally arranged at the top, and two separation layers horizontally arranged below the cover; an annular tube provided with an opening is arranged on each separation layer. Compared with conventional artificial fish reefs, the anti-wave artificial fish reef has the advantages that columns and beams of a concrete frame body are few, and the resistance area of the underwater plane is reduced to decrease the wave resistance, so that internal water flows can be well exchanged with external water flows in the fish reef; the porosity of concrete of the main frame is high, more soil can be adsorbed in the water, and accordingly, green algae can easily grow on the main frame.

The invention discloses an abnormal siphon project involved in a monsoon rainwater automation control system, and belongs to a constituent part of a national super water conservancy project. Stored water of a cascade underground reservoir is continuously dispatched to the loess plateau, the Inner Mongolia plateau and the Xinjiang region in a graded mode; the abnormal siphon project serves as a power part to dispatch water bodies; cascade ascending pipe connecting mechanisms buried in sloping fields serve as water delivering channels, and as for each cascade ascending pipe connecting mechanism,a shield well and a horizontal pressure water delivering pipeline carry corresponding structures to form a cascade unit; the multiple cascade units are connected end to end and then connected with asealed sea storage basin on the upper part; the sealed sea storage basin is provided with water through the multiple cascade ascending pipe connecting mechanisms; after the system is filled with the water bodies through an electric pump, the abnormal siphon phenomenon is formed, and people constantly dispatch the stored water of the cascade underground reservoir to the plateaus without using any energy; and the system has two operating modes, wherein the power generation capability of the forced operating mode is much higher than that of the free operating mode.

The invention discloses a fire-fighting lance capable of adjusting the water flow spraying distance for public safety. The fire-fighting lance comprises a fire-fighting lance body, a water-inlet valvebody is arranged at the rear end of the fire-fighting lance body, a pipeline is arranged at the position, close to the water-inlet valve body, of one end of the fire-fighting lance body, a fire-fighting lance head is arranged at the front end of the fire-fighting lance body, a water-inlet valve element is arranged in the water-inlet valve body, a water-inlet valve seat is welded to the bottom ofthe water-inlet valve body, a water inlet is formed in the bottom of the water-inlet valve seat, a water-inlet valve hand wheel is arranged at the top of the water-inlet valve element, a rapid flow channel is formed in a speed regulating valve element, a speed regulating valve seat is arranged at the front end of the speed regulating valve element, a slow flowing channel is arranged in the speed regulating valve seat, and a wear-resisting nozzle is arranged at the front end of the fire-fighting lance head. A water spraying opening is formed in the wear-resisting nozzle, the structure is simple, the connection is convenient, the service lifetime is prolonged through the arrangement of a filter screen plate and the wear-resisting lance head, the water flow spraying distance can be adjusted,the usage by a user is facilitated, and the fire-fighting lance is more suitable for public occasions.

The SINGLE SERVE BREW ENHANCER is comprised of two structural parts, a small perforated grounds disc and its accompanying basket that are designed to slow the flow of water through a single serve “home brew pod” (“My K-Cup”™) used with single serve automatic coffee makers. This both extends steeping time and allows for a richer flavor of coffee to be brewed.

The invention discloses a water saving device for agricultural equipment. The water saving device structurally comprises a sleeve, two water outlets, an inside mechanism, a water inlet and support connection columns, the water inlet and the water outlets are arranged on the inside mechanism and communicated, the sleeve is arranged on the top end face of the inside mechanism, the support connectioncolumns are vertically mounted at four corners of the undersurface of the inside mechanism, a mountain-shaped water dividing fence of a water incoming device divides water into two branches which respectively flow to the water outlets, and water flow is buffered through a round water baffle. When water flow is too large, an indirect starting structure is triggered to start a rotating structure for precise meshing to promote a blocking plate for blocking a closed structure to move forwards to the water inlet of a closed water incoming device, so that automatic closing effect, diversion, buffering and automatic closing are realized; when the water flow is delivered to a site for irrigation through pipelines, the water flow is slow in speed and low in impact force, so that impact on growth of crops due to the fact that root systems of the crops are exposed during soil impact can be avoided.

The invention provides a civil engineering construction pouring device which comprises a moving carrier, a plurality of supporting rods, a plurality of supporting rods, a plurality of supporting rods and a plurality of supporting rods. The water storage assembly is fixedly arranged at the top of the bottom plate; the spraying assembly is fixed to one end of the top of the bottom plate, the spraying assembly is provided with a base plate and an inclined top plate obliquely arranged above the base plate, the base plate and the inclined top plate are both triangular plate bodies, a closed triangular cavity is defined by the periphery of the base plate and the periphery of the inclined top plate, and buffer blocks are evenly arranged in the triangular cavity; a water inlet is formed in the top of one corner of the triangular cavity, and a transverse water outlet is formed in the side, away from the water inlet, of the triangular cavity. A pumping device; the water flow speed can be reduced through the buffer block, water flow in the triangular cavity can be dispersed, transverse water flow with the large length flows out of the transverse water outlet, uniform pouring of the road surface can be completed at a time, the water flow speed is low, sinking caused by impact on the road surface is avoided, and the maintenance effect is guaranteed.

The invention belongs to the technical field of water purification filter elements, and relates to an activated carbon-based composite filter element which comprises a shell, the shell comprises a bottom plate, a water outlet is formed in the center of the bottom plate, a filter element main body is fixedly mounted in the shell, an early warning groove is formed in the side wall of the filter element main body, a movable device is fixedly mounted in the shell, a first spring is fixedly installed on the upper surface of a bottom plate of the shell, a movable ring is fixedly mounted at the upper end of the first spring, the outer side wall of the movable ring is in contact with the inner wall of the shell, pP cotton is fixedly installed on the inner side wall of the movable ring, and the PP cotton is in contact with the outer wall of the filter element main body and is compressed by the movable ring and the filter element main body. The activated carbon-based composite filter element is simple in structure; water flows into the composite filter element to trigger the movable ring to clean surface impurities, and the water is filtered by the filter element main body and enters a sterilization device so as to be sterilized.

The invention relates to the technical field of sewage treatment, and particularly discloses sewage detection equipment for preventing river pollution. The sewage detection equipment comprises a sewage discharge pipe and a prevention pool, a main pump, a pressure pump, a sewage detection part and a reversing valve are sequentially arranged on the sewage discharge pipe in the water flow direction,sewage can be guided into a river channel and the prevention pool by switching the reversing valve, the sewage detection part comprises a venturi tube and a detection tube, a sewage inlet of the reversing valve is communicated with an outlet section, one end of the detection pipe is communicated with an inlet section, the other end of the detection pipe is communicated with a throat, a sewage detection sensor is arranged in the detection pipe, the pressure pump is in signal connection with the sewage detection sensor through a controller, a power ring is arranged in the throat, the power ringis in sliding connection with the inner wall of the throat, a permanent magnet is embedded in the power ring, a coil is arranged on the periphery of the throat, the power ring slides in different directions relative to the coil, an electromotive force in different directions is formed in the coil, and switching of the reversing valve can be controlled through the electromotive force.

The invention belongs to the field of smart home, and particularly relates to a bending type protection pipe for smart home. The bending type protection pipe comprises a fixed pipe, a rotating pipe is arranged at one end of the fixed pipe, a coaxially-arranged corrugated pipe is fixedly arranged between the fixed pipe and the rotating pipe in a communicating manner, a fixed strip is fixedly connected to the side wall of the corrugated pipe, a sliding rail is arranged on the fixed strip, and a sliding knob is slidably connected in the sliding rail. By arranging an adjusting mechanism, the larger the water flow in the fixed pipe is, the larger the impact rotation angle of a deflection rod is, the smaller the included angle between a rotating connecting rod and the fixed strip is, that is, the sliding knob can be driven to slide towards the upper end of the fixed strip, and therefore one end of a rotating rod is driven to slide towards the upper end of the fixed strip, the included angle between the fixed pipe and the rotating pipe is gradually reduced from a flat angle under driving of the rotating rod and the rotating connecting rod, the larger the water flow speed is, the larger the rotating angle is, automatic adjustment can be conducted according to the water flow pressure, use is convenient, and effective protection can be provided for a water purifier.

The invention relates to the field of valves, in particular to a valve capable of being precisely adjusted. The valve comprises a pressing wheel sliding frame, a sealing structure, a scrap removing structure, a spraying structure, a valve structure, a flow speed control structure and an angle adjusting structure; the valve structure is provided with the flow speed control structure used for controlling the water flow speed; the valve structure is provided with the spraying structure used for spraying and cooling the formed winding pipe, and the angle adjusting structure used for adjusting theangle of the spraying structure is arranged in the valve structure, so that the spraying speed of the spraying structure on the pipeline is conveniently controlled through the flow speed control structure, and the adjustment of the water flow speed is more convenient and faster; and meanwhile, the flow speed of the adjusted water flow is more accurate and stable, the angle between the spraying structure and the valve structure can be conveniently adjusted through the angle adjusting structure, so that the spraying structure is suitable for pipelines of different sizes, the cooling effect of the spraying structure on the pipelines is greatly improved, and the forming quality of the pipelines is improved.