34results about How to "Does not affect water flow" patented technology

The invention relates to a hole plate mixed spiral flow pipeline energy dissipating device which belongs to the technical field of pipeline water transmission and is characterized in that the hole plate mixed spiral flow pipeline energy dissipating device is in a screen mesh type. The hole plate mixed spiral flow pipeline energy dissipating device consists of an outer pipe 1, an inner pipe 2, a flange 3, a hole plate 4, inclined holes 5, non-inclined holes 6 and a rotating shaft 7, wherein the outer pipe 1 is concentrically connected with the inner pipe 2 through the flange 3, the inclined holes 5 are symmetrically and uniformly formed around the inner pipe 2 in accordance with inclination angles, the inner pipe 2 is connected with the first hole plate 4, the hole plates 4 are connected through the rotating shaft 7 which coincides with the central axis of the outer pipe 1, and each non-inclined hole 6 is formed on each hole plate 4 in the axis direction. According to the hole plate mixed spiral flow pipeline energy dissipating device, the adjusting range of pipeline energy dissipation is greatly increased in a condition that the water transmission flow is not affected, so that the axial and circumferential force balance of the energy dissipating device is realized, the defect of pipe vibration in the process of energy dissipation is completely overcome, the safety and stability of a water transmission system are guaranteed, and the service life is prolonged.

The invention discloses a method and a device for intercepting floating pollutants in a low-flow water body by using aquatic air curtain. The aquatic air curtain device consisting of a fan, a gas pipeline, a U-shaped drainage tail pipe, a branched pipe interface, a micropore aeration branched pipe and the like is horizontally arranged at the depth of about 1.5 meters under the water surface in a water bottom fixed mode or a water surface suspension mode, and vertical rising curtain gas-water flow is formed in the water body by strip micropore aeration to cut off wind-generated laminar flow of the surface of the water body and intercept floating blue algae and garbage sundries carried by the wind-generated laminar flow on the windward or upstream side. An 'invisible' water body floating pollutant intercepting defense line can be built by using the technology and is used for intercepting, guiding and enriching the pollutants such as floating algae, greasy dirt, garbage sundries, weeds and the like in the low-flow water bodies of inland lakes, reservoirs, ponds and the like, in particular intercepting the floating pollutants such as water intakes of urban waterworks. The building expense of the 1km aquatic air curtain intercepting facility is less than 1 million yuan, the running power is less than 20kw, and the aquatic air curtain intercepting facility can be started and closed at any time as required, is not affected by wind waves and ships, does not affect water flow, water quality, water body landscape and ecology, and has over 10 years of service life.

The invention discloses a synchronous opening / closing device for a horizontal gate in a hydraulic model test. The device comprises a bracket, a speed regulation motor, a gear box, a main transmission shaft and two push-pull mechanisms with the same structure, wherein the two push-pull mechanisms are located at the two end parts of the main transmission shaft respectively; each push-pull mechanism comprises a push-pull rack, a support seat, a gear, a rotation shaft and a toothed belt transmission mechanism; the push-pull rack is articulated with one side of the gate, and is in sliding connection in the support seat; the support seat is fixed on the bracket; the gear is meshed with the push-pull rack and fixedly mounted on the rotation shaft; and the rotation shaft is supported on the bracket through a bearing and connected with the end parts of the main transmission shaft through the toothed belt transmission mechanism. In the invention, one main transmission shaft drives two push-pull mechanisms with the same structure to open / close the gate from the two sides of the gate; in the basically same practical situation, the synchronous opening and closing of the gate are realized relatively easily; and the synchronization accuracy is relatively high without influencing the water flow state.

The invention discloses a reverse washing prefilter which comprises a filter element and a shell arranged outside the filter element. The shell comprises an upper shell and a lower shell which are hermetically and integrally connected, a water inlet and a water outlet are formed in the upper shell, a water inlet cavity is formed in the upper shell, the water inlet is communicated with the inside of the water inlet cavity, the water outlet is communicated with the inside of the filter element, the upper shell comprises an upper sealing part and a lower sealing part which are positioned on the upper portion and the lower portion of the water inlet cavity respectively, water through openings are formed in the upper sealing part and the lower sealing part, a conversion rod is inserted into the water inlet cavity, the upper portion of the conversion rod sequentially penetrates the water through opening of the upper sealing part and the top of the upper shell, a sealing gasket for hermetically matching with the water through openings is arranged at the conversion rod between the upper sealing part and the lower sealing part, and a drainage valve is arranged at the bottom of the lower shell. According to the reverse washing prefilter, reverse washing operations are simple, and the filter element does not need to be disassembled, washed or replaced by professional staff.

The invention discloses an oceangoing vessel ballast water processing method. According to the method, air over the ballast water in ballast water chambers is evacuated by an inert gas, the ballast water in the ballast chambers is pumped out of the ballast chamber, the ballast water is subjected to blow-off mixing by the inert gas to generate a physical reaction, a soluble inert gas is merged into the ballast water when oxygen in the ballast water is sucked out, and the processed ballast water is discharged into the ballast water chambers. A device of the method comprises the ballast chambers, ballast pumps, Venturi ejectors and an inert gas generator. The ballast water processing method of the invention, which is a physical method, needs no extra chemical agents or relevant dosing devices; the physical reaction can be directly generated in the Venturi ejectors, and no filter devices are needed before the reaction generation, so time-cost regular cleaning is not needed, the water flow is not influenced, the discharge time is reduced, and the chambers are protected from oxidation corrosion, thereby the reliability of the ballast water processing effect is guaranteed; and the method of the invention, which has a very good practicality, can generate very good economic benefits and social benefits.

The invention discloses a municipal water supply and drainage structure having an anti-blocking function. The municipal water supply and drainage structure comprises a ditch body, wherein a ditch cover is arranged at the upper side of the ditch body; a cleaning mechanism, which lifts along with a water level in the ditch body, is arranged at the lower side of the ditch cover; the cleaning mechanism comprises a conveying belt; barbs are arranged on the conveying belt; the barbs obliquely point to the moving direction of the conveying belt; a collection groove is arranged in the end, close to atensioning roller, of the ditch body; a partition board is arranged between the collection groove and the ditch body; a collection port, which communicates with the collection groove and the ditch body, is arranged in the partition board; one end of the tensioning roller extends into the collection groove via the collection port; baffle plates are arranged at two ends of a rotating shaft; baffle notches, which are matched with the barbs, are arranged in the baffle plates; and moving cavities, which are matched with the baffle plates, are arranged in the partition board at the lower end of thecollection port. According to the municipal water supply and drainage structure provided by the invention, an effect of cleaning plastic bags floating a drainage ditch can be cleaned more effectivelycan be achieved.

The reinforced concrete pipe making machine consists of mainly frame, suspension roller shaft fixed to the frame, gate head supported in the front of the suspension roller shaft, main shaft connected to the back end of the suspension roller shaft, driving mechanism connected to the main shaft, material feeding mechanism and pipe mold. The bearing in the front end of the suspension roller shaft is supported in the gate head bearing seat, the main shaft bearing is in the frame bearing seat, the jack fixed in the back end of the main shaft on the frame has head perpendicular to the main shaft axis, and the main shaft and the suspension roller shaft have angle to the horizontal plane of 0-3 deg. The pipe mold has flanged edges on two ends connected separately with spigot mold and socket mold separately. The present invention is suitable for producing high strength reinforced concrete pipe with spigot mold and socket.

The invention discloses a ditch anti-blocking recharge filtering device, and belongs to the technical field of aquifer recharge, namely groundwater artificial recharge. The ditch anti-blocking recharge filtering device comprises a ditch, a labyrinth weir structure, a sloping plate filter structure and a dredging well, and the labyrinth weir structure is laid on a ditch slope, and comprises a plurality of labyrinth weir monomers; each labyrinth weir monomer comprises filter plates I and filter plates II, and the filter plates I and the filter plates II are each provided with a plurality of water inlets; the filter plates I, the filter plates II and the ditch slope enclose and form a water storage cavity, and the water storage cavity is vertically formed along the ditch slope; and one end ofthe sloping plate filter structure communicates with the labyrinth weir structure, and the end, far away from the labyrinth weir structure, of the sloping plate filter structure communicates with thedredging well through a collector pipe which is provided with a plurality of drain holes. According to the ditch anti-blocking recharge filtering device, the area of a river channel is not occupied,and water flow is not affected; and the filtering device is prevented from being blocked by sediments, and the filtering efficiency is improved.

The invention discloses a reverse washing prefilter which comprises a filter element and a shell arranged outside the filter element. The shell comprises an upper shell and a lower shell which are hermetically and integrally connected, a water inlet and a water outlet are formed in the upper shell, a water inlet cavity is formed in the upper shell, the water inlet is communicated with the inside of the water inlet cavity, the water outlet is communicated with the inside of the filter element, the upper shell comprises an upper sealing part and a lower sealing part which are positioned on the upper portion and the lower portion of the water inlet cavity respectively, water through openings are formed in the upper sealing part and the lower sealing part, a conversion rod is inserted into the water inlet cavity, the upper portion of the conversion rod sequentially penetrates the water through opening of the upper sealing part and the top of the upper shell, a sealing gasket for hermetically matching with the water through openings is arranged at the conversion rod between the upper sealing part and the lower sealing part, and a drainage valve is arranged at the bottom of the lower shell. According to the reverse washing prefilter, reverse washing operations are simple, and the filter element does not need to be disassembled, washed or replaced by professional staff.

The invention discloses a double-sealing automatic folding air bag valve mechanism. The double-sealing automatic folding air bag valve mechanism comprises a sleeve, two limiting supports and an adjusting mechanism, wherein the two limiting supports are arranged in the sleeve, and the adjusting mechanism is arranged in the position, located between the two limiting supports, of the upper wall bodyof the sleeve; and the adjusting mechanism comprises a ventilation pipe, a hollow air adjusting pressing cap, a sealing film, a deflation bolt, an air bag, a first vent hole, a second vent hole, a self-folding mechanism and an air closing flap, wherein the lower end of the ventilation pipe is provided with the sealed air adjusting pressing cap capable of sliding up and down and not separated fromthe ventilation pipe, the sealing film is arranged in the air adjusting pressing cap, and the bottom of the sealing film is provided with the deflation bolt for pushing the air closing flap. Comparedwith the prior art, the double-sealing automatic folding air bag valve mechanism has the advantages of being easy to operate, good in applicability, low in cost, good in sealing effect, and small in adjustment abrasion; and moreover, natural materials are adopted for machining, so that a certain bacteriostasis and health care effect is achieved, and the flow of water is not influenced.

An embodiment of the present invention provides a composite electrode for water treatment based on a metal-based fiber material, comprising: a metal fiber matrix, a micro-nano configuration metal surface layer, a metal oxide catalyst layer and a surface modification layer; the micro-nano configuration metal surface layer is A metal surface layer with micro-nano morphology of micro-columns, micro-wires, micro-rods, nano-rods or nano-wire arrays grown on a metal fiber substrate; the metal oxide catalytic layer is an in-situ growth on the micro-nano configuration metal surface with A metal oxide array with nanowire, nanorod or nanocone morphology; the surface modification layer is a superhydrophobic coating or a conductive coating supported on the metal oxide catalytic layer. The invention has high surface area ratio, high surface area, high effective area under unit mass electrode (specific electrode mass active area), and is suitable for different water treatment scenarios due to the special micro-nano interface characteristics and the open structure of the fiber electrode, and has strong oxidizing ability at the same time. , excellent mass transfer performance, long service life, easy processing, low energy consumption.

The invention discloses a valve core structure of a water heater. The valve core structure comprises an automatic valve core and a hand-operated valve core arranged in an automatic valve cavity and in a hand-operated valve cavity, wherein the automatic valve core and the hand-operated valve core comprise valve core shells, bases, moving pieces, fixed pieces and valve core rotating handles; the valve core rotating handles are connected to the moving pieces in a clamping manner, each fixed pieces is provided with a first valve port, a second valve port, a third valve port and a fourth valve port, each moving piece is provided with a groove cavity, the center round part of the groove cavity and the first valve port of each fixed piece are correspondingly arranged, and a fan part of the groove cavity and the second valve port and the third valve port on each fixed piece are positioned on the same circumference line; and the second valve port and the third valve port are respectively communicated with a hot water flow channel and a cold water flow channel of a valve body, the valve body is internally provided with a mixing water flow channel so that the fourth valve port of the fixed piece of the automatic valve core and the fourth valve port of each fixed piece are communicated, and the first valve port of the fixed piece of the hand-operated valve core is communicated with a water outlet flow channel of the valve body. The valve core structure provided by the invention meets a scouring bath use comfort requirement.

The invention relates to a welding method for tension rib plates for welding seams of high-temperature environment pipelines and belongs to the technical field of high-temperature pipeline maintenancemethods. The welding method is used for welding the tension rib plates to the high-temperature environment pipeline welding seams. According to the technical scheme, sunroof holes are cut in the welding seam cracking portions of the pipelines, the tension rib plates are welded to the inner walls of the pipeline welding seam cracking portions where the sunroof holes are located of the pipeline, the tension rib plates are evenly distributed on the periphery of the inner wall of each pipeline, and due to the fact that no burning problem is generated when the tension rib plates are in the water-cooling pipelines, the welding seam strength is ensured, and the function of long-term reinforcement of the pipeline welding seam cracking portions is played. The welding method is the first of pipeline maintenance in the high temperature environment, a traditional tension rib plate welding method is broken through, the tension rib plates are creatively welded to the inner walls of the pipelines, the burning problem of the tension rib plates in the water-cooling environment is prevented, the problems of incomplete water leakage and maintenance of the pipeline welding seams in the industry are solved completely with the simplest method, meanwhile the consumption of spare parts can be lowered, and safe and smooth production is ensured.

The invention discloses a peculiar smell isolator and a using method thereof, and belongs to the technical field of pipeline deodorization. A spring is embedded inside a peculiar smell isolator main body, a ball cap is fixed at the top end of the spring, the ball cap freely slides on the peculiar smell isolator main body, adapters are clamped at the water inlet end and the water outlet end of the peculiar smell isolator main body, the peculiar smell isolator main body is detachably connected to the adapters, sealing assemblies are arranged at the joints of the peculiar smell isolator main body and the adapters and in the ends, away from the peculiar smell isolator main body, of the adapters, and the peculiar smell isolator main body is connected to the adapters through the sealing assemblies. According to the peculiar smell isolator and the using method thereof, the isolator is separated from the design of a traditional U-shaped pipe, the isolator is additionally arranged on the basis of not changing the shape of the pipeline so that peculiar smell in the pipeline can be isolated, by adopting the design of the adapters and the sealing assemblies, the adaptation of the peculiar smell isolator to pipelines of different models and sizes is ensured, and different peculiar smell isolators do not need to be replaced according to the pipelines of different models.