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Star-shaped labyrinth flow channel drip irrigation emitter

A labyrinth flow channel and sprinkler technology, applied in watering devices, horticulture, agriculture, etc., can solve the problems of poor hydraulic performance, poor irrigation uniformity, etc., and achieve the effect of sufficient energy dissipation

Active Publication Date: 2021-10-01
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the flow index of various non-pressure-compensated drip irrigation emitters on the market is generally around 0.5, and the flow index is relatively large. Therefore, the uniformity of irrigation is poor and the hydraulic performance is poor.

Method used

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  • Star-shaped labyrinth flow channel drip irrigation emitter
  • Star-shaped labyrinth flow channel drip irrigation emitter
  • Star-shaped labyrinth flow channel drip irrigation emitter

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Embodiment Construction

[0030] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0031] It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the invention clearly states otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, their Indicate the presence of features, steps, operations, means, components and / or combinations thereof;

[0032] As introduced in the background technology, there are deficiencies in the prior art. In order ...

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Abstract

The invention belongs to the field of drip irrigation emitters, particularly relates to a star-shaped labyrinth flow channel drip irrigation emitter, and aims to reduce the flow state index to improve the hydraulic performance. The drip irrigation emitter comprises a body, a water inlet and a water outlet are formed in the body and communicate with each other through an energy dissipation flow channel, the energy dissipation flow channel comprises a plurality of energy dissipation flow channel units which are sequentially connected in series, each unit comprises a trapezoidal structure unit and a star-shaped structure unit, the trapezoidal structure unit is an isosceles trapezoid body, an inlet is formed in one inclined surface of the isosceles trapezoid body, and an outlet is formed in the other inclined surface of the isosceles trapezoid body; and the star-shaped structure unit is arranged in the center of the trapezoidal structure unit, the star-shaped structure unit is of a central symmetry structure and is formed by sequentially connecting four arc-shaped curved surfaces, the four arc-shaped curved surfaces are sunken towards the center position of the star-shaped structure unit, and connecting lines of four vertexes of the star-shaped structure unit are horizontally and vertically distributed.

Description

technical field [0001] The invention relates to an emitter, in particular to a star-shaped labyrinth channel drip irrigation emitter. Background technique [0002] Drip irrigation is an advanced and effective water-saving irrigation technology in modern agriculture. It is widely used in the irrigation of commercial crops such as melons, fruits, vegetables, and cotton. The drip irrigation emitter is the core component of the entire drip irrigation system. Its main function is to realize energy dissipation and steady flow through several flow channel structural units inside the emitter, so that the water flow under different pressures can enter the emitter in a uniform and stable small flow pattern for irrigation. Hydraulic performance is one of the important indicators to evaluate the quality of drip irrigation emitters. Generally, it is quantitatively evaluated by flow index, which reflects the sensitivity of drip irrigation emitter flow to inlet pressure. The smaller the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G25/02
CPCA01G25/023Y02A40/22
Inventor 冯显英李燕飞刘延栋韩兴昌孙宜田苏哲徐振宇岳明君
Owner SHANDONG UNIV
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