Jet flow pulse drip irrigation emitter and drip irrigation method

Abstract

The invention belongs to the technical field of agricultural water-saving irrigation, relating to a drip irrigation emitter and especially to a jet flow pulse drip irrigation emitter and a drip irrigation method. The jet flow pulse drip irrigation emitter is composed of a water inlet groove, a jet flow pulse generator, a flow channel and a water outlet groove, the water inlet groove is provided with a filtering window and is communicated with the jet flow pulse generator, the jet flow pulse generator is communicated with the flow channel, and the water outlet groove is situated on the tail end of the flow channel. Jet flow control technology is used for driving water stream to intermittently flow in two flow channels so as to realize a continuous pulse process, form strong turbulent motion and impact water stream in the flow channels and reinforce the anti-clogging capability and irrigation uniformity of the drip irrigation emitter. The jet flow pulse drip irrigation emitter omits such elastomer structures of the current drip irrigation pulse generator, such as rubber, plastic film and spring, and the like, and the jet flow pulse drip irrigation emitter has simple structure, good reliability and strong durability, so that the jet flow pulse drip irrigation emitter can be extensively suitable for the irrigation demands of filed crops, vegetables and forest and fruit industry.

Description

technical field [0001] The invention belongs to the technical field of agricultural water-saving irrigation, and relates to a drip irrigation dispenser, in particular to a jet pulse drip irrigation dispenser and a drip irrigation method. Background technique [0002] Pulse drip irrigation has the characteristics of strong anti-clogging performance and high irrigation uniformity, and has been widely concerned and applied by countries all over the world; the pulse drip irrigation system generates continuous pulse water flow through the cycle of pulse generator water storage and pulse, and its working process is generally by water filling. Pressurization and water outlet decompression are composed of two independent stages, and the two stages are automatically reciprocated, so that the water flows intermittently from the drip irrigation emitter at a certain pulse frequency, realizing the pulse drip irrigation method. [0003] The pulse generator is the core device that turn...

AI Technical Summary

Problems solved by technology

[0004] Existing pulse drip irrigation utilizes the expansion and reset of elastic materials such as rubber, plastic, and springs to achieve the purpose of pulse water flow; drip irrigation systems generally run for a long time, and elastic materials are prone to fatigue during long-term, high-frequency frequent reciprocating operations , or even damage; the pulse frequency depends on the stiffness and initial compression of the elastic material. Long-term operation will lead to changes in the stiffness and elastic modulus of the elastic material, and the elasticity will decrease. Sensitivity and reliability will decrease to varying degrees, thus affecting pulse drip irrigation. Long-term operation and use of the system; the use of elastic materials will inevitably increase the structural complexity of the pulse generator, and put forward higher requirements for mechanical sealing, manufacturing precision, reliability and durability

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