Pressure compensating drip irrigation emitter with changed structure

Abstract

The invention discloses a pressure compensating drip irrigation emitter with a changed structure. The structure of the pressure compensating drip irrigation emitter is that a water inlet is communicated with one end of a flow path, a water outlet is communicated with the other end of the flow path, linear sawtooth ends are evenly distributed on two sides in the flow path, and elastic blocking pieces are distributed at the sawtooth ends at equidistant intervals. The width of elastic blocking pieces is slightly smaller than the thickness of sawteeth so that friction between the elastic blocking pieces and the flow path is avoided. The deflection direction of the elastic blocking pieces is the direction of water flow. A back fence is arranged at the back of the irrigation emitter and is communicated with the water inlet. By adding the elastic blocking pieces on tooth-shaped structure ends of a traditional labyrinth flow path, the irrigation emitter achieves the purpose of integral design of compensating pieces and the flow path so that assembly errors between the compensating pieces and the flow path are reduced, and local head loss caused by the assembly is reduced. The novel flow path can achieve pressure compensation, can be used in production of embedded-in drip irrigation belts, and can solve the problem that the drip irrigation belts are not suitable for achieving the pressure compensation. Besides, the pressure compensating drip irrigation emitter further has capacities of self cleaning and blocking resistance.

Description

technical field [0001] The invention belongs to the intersection field of agricultural water-saving irrigation and advanced manufacturing technology, and in particular relates to a variable-structure pressure-compensated drip irrigation dispenser. Background technique [0002] Water-saving irrigation is the main measure adopted by countries in the world to develop agriculture. As an advanced high-standard irrigation technology in water-saving irrigation, micro-irrigation has been adopted by many countries in the world. Among them, drip irrigation has the most obvious advantages such as water saving, production increase, and high efficiency, and can be widely used in the cultivation of economic crops such as fruit trees, vegetables, flowers, and medicinal materials. The emitter is the core component of the drip irrigation system, and its performance plays a decisive role in the promotion and application of the entire drip irrigation system. [0003] The pressure-compensated ...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantages of the existing pressure compensation emitters, such as low uniformity of water output, easy blockage, complex structure, and high manufacturing cost, and to provide a pressure-compensated drip irrigation emitter with a variable structure. The emitter has a simple flow path, It can realize the pressure compensation effect of the emitter, and has good water uniformity and anti-clogging performance

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