44results about How to "Improve watering uniformity" patented technology

The invention discloses a fluidic impulse tee joint. The fluidic impulse tee joint comprises an inlet section, a fluidic element and two outlet sections. When the tee joint is applied to a micro-irrigation system, the inlet section is connected with a branch pipe, the fluidic element is located between the inlet section and the outlet sections, the two outlet sections are respectively connected with hair pipes, water flow passes through the inlet section from the branch pipe and enters into the fluidic element, the fluidic element generates impulse water flow, the water flow flows alternately in the two hair pipes intermittently according to a certain frequency, impulse water flow is formed in the hair pipes, the impulse water flow in the hair pipes enters an watering device, intense turbulent fluctuation and impact water flow is formed in the watering device, and the anti-blocking performance and the watering uniformity of the watering device are enhanced. The fluidic impulse tee joint has the advantages of being simple in structure and processing process, low in production cost and convenient to install and use. The fluidic impulse tee joint can be widely applied to irrigation requirements of field crops, vegetables, forest, fruits and the like.

The invention provides a drip irrigation tape with pasters inlaid internally. The drip irrigation tape with the pasters inlaid internally is characterized in that the drip irrigation tape comprises a drip irrigation tape body and a plurality of paster drippers inlaid in the inner wall of the drip irrigation tape body at equal intervals, wherein each paster dripper comprises a filtering part, a labyrinth flow channel and a water outlet groove, the filtering part is composed of a plurality of filtering grooves, the width of each filtering groove is 0.5 mm, one end of the labyrinth flow channel is communicated with the filtering part, the other end of the labyrinth flow channel is communicated with the water outlet groove, and the water outlet channel is communicated with a water outlet hole in the drip irrigation tape body; all the paster drippers are located in two mark lines. The drip irrigation tape with the pasters inlaid internally has the advantages that the drip irrigation tape with the pasters inlaid internally is high in production efficiency, convenient to package, easy to transport, stable in flow, capable of customizing flow according to water requiring characteristics of crops, high in anti-blocking performance and good in water irrigation uniformity; the drip irrigation tape can be directly laid in a specific position to be installed, and thus construction is fast to perform; irrigation can be carried out as long as a valve is opened; the drip irrigation tape with the pasters inlaid internally can be used for accurately applying fertilizer as water and fertilizer integration equipment, time, labor, effort and land are saved, a user is free from worry, production and income are improved, and the drip irrigation tape is environmentally friendly.

The invention discloses an intermittent combination and irrigation method for brackish water and freshwater in saline-alkali soil, pertaining to the technical field of irrigation. The method is mostly aimed at solving problems in the prior art such as serious waste of freshwater resources, low utilization rate, poor irrigation evenness and soil secondary saline-alkalization. The method comprises the following processing steps: field investigation; sampling of soil samples; sampling of water samples; analyses of soil samples; analyses of water samples; production and installation of test equipment. In terms of design of an experiment scheme, the experiment scheme comprises all freshwater direct irrigation, brackish water direct irrigation, brackish water and freshwater intermittent and combined irrigation. The brackish water and freshwater intermittent and combined irrigation comprises the combination sequence including the step of firstly irrigating brackish water and then freshwater and the step of firstly irrigating freshwater and then brackish water. The intermittent time include 0 min, 30 min, 60 min and 120 min. The intermittent combination and irrigation method for brackish water and freshwater in saline-alkali soil helps improve evenness of irrigation, reduce seepage of deep layers and improve saline-alkaline soil.

The invention discloses an inclined tube sedimentation tank water distribution rectification device which comprises a plurality of guide plates, wherein each guide plate is divided into an upper part and a lower part; the upper half parts are vertical guide plates with adjustable guide windows; the lower half parts are inclined guide plates; a feedback device is arranged below the guide plate; the feedback device is used for measuring the flow inside gaps among different guide plates by using a plurality of speed measuring probes; the opening direction of the adjustable guide window can be adjusted according to the flow measured by the feedback device. With the combination of different guide windows, the uneven phenomenon caused by factors such as density flow and turbulent flow can be reduced to the maximum under the condition that normal flocculation is ensured, flocculation can be achieved by sufficiently utilizing the effective volume of a water distribution area, and the flocculation effect can be improved. By reducing the uneven flow phenomenon, the maximum flow speed of water into a sedimentation area can be effectively reduced, stable transition from flocculation to sedimentation can be achieved, and the disturbance of the water fed into the sedimentation area to suspended sludge can be reduced.

An unobstructed full-circle sprinkling and stabilized pressure drip-proof micro atomizer comprises a cap, a body fitly mounted to the cap, and a reflector connected with the body. The unobstructed full-circle sprinkling and stabilized pressure drip-proof micro atomizer is characterized in that the body is connected with the reflector through a fixing rod with T-shaped section, the body is hollow and is internally provided with a cavity having T-shaped section and fitting mounting of the fixing rod, the reflector is provided with a fixing rod mounting hole, the fixing rod is mounted in the cavity of the body, the tail end, extending out, of the fixing rod is inserted to the reflector and in tight fit with the fixing rod mounting hole. A mounting and application method of the atomizer includes: the atomizer is mounted; the cap is connected to an inflow pipe of a spray irrigating unit in a threaded manner or through a bevel connector; an opening pressure value of the atomizer is determined according to magnitude of elasticity of a pressure-stabilizing drip-proof membrane; when interior water pressure of the inflow pipe is higher than the opening pressure value of the atomizer, spray irrigation water flows through the pressure-stabilizing drip-proof membrane and is atomized by the reflector, and full-circle sprinkling starts.

The invention relates to an on-pipe type water irrigator which is characterized by comprising an inlet water guide part, a flow channel cover plate, a round elastic piece, a base, a scraping piece cover plate, an elastic supporting part, an adjusting cavity and an outlet cavity body; a water inlet and a flow channel groove are formed in the inlet water guide part, and the flow channel cover plate is arranged at the top of the inlet water guide part, a flow channel convex body is arranged on the flow channel cover plate, and a flow channel is defined between the flow channel groove and the flow channel convex body, one end of the flow passage is provided with a flow passage inlet, and the other end of the flow passage is provided with a flow passage outlet communicating with a supporting cavity; a drainage hole is formed in a partition plate of the base, and the base is in sealed connection with the inlet water guide part; the circumferential edge of the round elastic piece is tightly fixed at the bottom of the partition plate, and the bottom of the round elastic piece is supported at the top of the supporting cavity, and a water passing hole is formed in the bottom of the adjusting cavity; the adjusting cavity is in sealed connection with the base, and water outlets are formed in the side wall of the adjusting cavity; scraping pieces of the scraping piece cover plate are connected with the water outlet in a sliding mode; the elastic supporting part is arranged between the adjusting cavity and the scraping piece cover plate; the water outlet cavity is hermetically connected with the base, and a water outlet is formed in the top of the water outlet cavity.

The invention relates to a film hole furrow irrigation method for saline-alkali land soil, and a mulching film puncher. The film hole furrow irrigation method includes arranging a field water deliverysystem, laying a plastic film in an irrigation ditch, opening multiple rows of film holes in the side wall of the irrigation ditch, and injecting water into a sublateral canal, a water delivery ditchand the irrigation ditch to irrigate crops on ridges between the ditches. The mulching film puncher comprises a connecting rod and a supporting rod which are arranged in a coaxially sleeved mode. A punching cylinder is connected to the lower end of the supporting rod in a coaxially communicated mode. A punching ring cutter is coaxially arranged at the lower end of the punching cylinder. The lowerend of the connecting rod extends into the punching cylinder, and is provided with a sliding soil compaction disc. The upper end of the connecting rod extends above the supporting rod, and is provided with a press plate. When the press plate is pressed down to the top of the supporting rod, the sliding soil compaction disc moves downwards to be close to a plane where the punching ring cutter is located. The film hole furrow irrigation method and the mulching film puncher have the advantages that two irrigation forms, namely furrow irrigation and drip irrigation, are integrated, so that water-saving irrigation is achieved while problems, such as uneven irrigation frequently occurring in furrow irrigation and salt accumulation of soil surface layers in drip irrigation, are solved.

The invention discloses a capillary pressure adjuster and an irrigation system. The pressure adjuster comprises an upstream shell, a downstream shell and a pressure adjusting assembly, wherein the pressure adjusting assembly comprises an adjusting body and a first sleeve connection body; the outer diameter of the adjusting body is gradually reduced form upstream to downstream; a transition sectionof which the inner diameter is gradually reduced from upstream to downstream is arranged in a cavity of the downstream shell; a first flow channel is formed between the adjusting body and the transition section; a second flow channel is formed between a second sleeve connection body in a cylindrical section of the downstream shell and the cylindrical section; the first sleeve connection body andthe second sleeve connection body are connected with each other in a sleeving manner and are provided with sealing pieces; a spring is arranged between the first sleeve connection body and the secondsleeve connection body; and an air channel is formed in a connecting portion between the second sleeve connection body and the cylindrical section. The capillary pressure adjuster is stable in performance and large in conveyance capacity; irrigation uniformity of the irrigation system can be ensured; moreover, the capillary pressure adjuster is simple in structure, small in number of parts and convenient to mount; and the manufacturing cost and using cost are further reduced favorably.

The invention discloses a load feedback jet pulse water dropper, and relates to the technical field of water-saving agriculture, the load feedback jet pulse water dropper comprises a main body, the main body is connected with a filtering inlet, two labyrinth flow channels are arranged in the main body, and the tail end of each labyrinth flow channel is provided with a water outlet cavity; the two water outlet cavities are jointly connected to the same water outlet hole, the sectional area of the water outlet hole is smaller than the minimum overflowing sectional area of the labyrinth flow channel, a plugging device is further arranged between the two water outlet cavities, and the plugging device can reciprocate between the two water outlet cavities to plug one of the water outlet cavities. The invention further discloses a drip irrigation system adopting the load feedback jet pulse water dropper. According to the invention, the pulse amplitude can be increased, the pulse drip irrigation oscillation effect can be improved, and the anti-clogging capability can be improved.