Laminated self-adaptive drip irrigation emitter and use method thereof

Abstract

The invention relates to a laminated self-adaptive drip irrigation emitter and a use method thereof; the laminated self-adaptive drip irrigation emitter is characterized by comprising a emitter shell body; both ends of the emitter shell body are respectively provided with a butting joint; two groups of arc tooth-shaped energy dissipation runners are arranged on the outer wall of the emitter shell body; a structure area and a buffer area are arranged between the two groups of arc tooth-shaped energy dissipation runners; positions on the two groups of arc tooth-shaped energy dissipation runners which are close to the structure area are provided with wall surface water inlets which are communicated with the inside of the emitter shell body, and the positions of the two groups of arc tooth-shaped energy dissipation runners which are close to the buffer area are provided with outlets which are communicated with the buffer area; both ends of the outer wall of the emitter shell body are respectively provided with a circle of water collection runner which is communicated with the buffer area; a capillary is wrapped outside the emitter shell body, and water outlets are arranged on one or two ends of the water collection runner on the capillary; positions in the emitter shell body which are close to butting joints on both ends are respectively provided with a water inlet and outlet laminate; two energy dissipation laminates are arranged between the two water inlet and outlet laminates; an elastic diaphragm is arranged between the two energy dissipation laminates; and the wall surface water inlets are arranged between the two energy dissipation laminates.

Description

technical field [0001] The invention relates to a drip irrigation emitter used in the field of water-saving irrigation and a usage method thereof, in particular to a laminated self-adaptive drip irrigation pipe (belt) emitter and a usage method thereof. Background technique [0002] Drip irrigation is considered to be the safest and most reliable irrigation method among modern irrigation methods due to its precise and controllable characteristics. However, natural water bodies contain a large amount of particulate matter, nutrients, organic matter, microorganisms, etc. more complicated. The emitter is the most critical part of the drip irrigation system. Its function is to make the pressurized water flow through the narrow and long channels or micropores inside it to fully dissipate energy, and then drip into the soil with a uniform and stable small flow rate. However, due to the need for energy dissipation of the emitter, the size of the flow channel is generally only abou...

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Problems solved by technology

Scholars in my country have also made some explorations to solve the problem of emitter blockage from the perspective of emitter structural design: for example, Fan Xingke of Northwest Agriculture and Forestry University (public number CN1636437A) disclosed a turbulent flow anti-clogging emitter flow channel structure design method, based on hydraulics The turbulent flow and eddy current theory in the paper uses an arc-shaped surface with the characteristics of a vortex surface on the side of the flow channel unit to avoid the precipitation of fine particles, but the effect on preventing biological clogging is not significant

Yang Peiling et al. (publication number CN1454459) disclose a drip irrigation emitter, which adopts the form of fractal flow channels to enhance the energy dissipation effect, but the anti-clogging performance is poor

Some scholars have also invented anti-clogging drip irrigation emitters. For example, Dai Boxin et al. (publication number: CN101244407A) disclosed an anti-clogging dripper, which can realize the pressure compensation function through the pressure nozzle, but because there is no energy-dissipating structural unit, the energy-dissipating effect is relatively low. weak

[0004] Generally speaking, the current relevant research is still mainly focused on the anti-clogging design method of emitters. The anti-clogging emitter products developed have single functions and have not achieved real anti-clogging. Relying on the self-adaptive ability of the emitter itself to improve Products with anti-clogging properties have not been reported yet

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