Micro-irrigation capillary pipe inlet flow adjuster

Abstract

The invention relates to a micro-irrigation capillary pipe inlet flow adjuster. The micro-irrigation capillary pipe inlet flow adjuster is characterized by comprising a water outlet base, a water inlet cover, a core base and a circular elastic film. The water outlet base is a cylindrical pipe, a circular hole is reserved on the side wall of the cylindrical pipe, a cylindrical connecting pipe is circumferentially arranged around the circular hole, the water inlet cover is arranged on the top of the cylindrical connecting pipe, the core base is arranged in the cylindrical connecting pipe and comprises a circular bottom plate, a cylindrical retaining wall is arranged on the top of the circular bottom plate, a water inlet ring is formed between the outer circumference of the cylindrical retaining wall and the inner wall of the cylindrical connecting pipeline, a central water outlet hole is reserved at the center of the circular bottom plate, a plurality of sector rings protruding upwards are circumferentially arranged around the central water outlet hole, and the surface of each sector ring is a plane. A groove runner is formed between each two adjacent sector rings, a central support column protruding upwards is arranged in the central water outlet holes, the cylindrical retaining wall is provided with water inlets respectively corresponding to the groove runners, a strip-shaped partition protruding upwards is arranged in each groove runner along the flow direction of the runners, and the circular elastic film is arranged in the cylindrical retaining wall and above the sector ring and the central support column.

Description

technical field [0001] The invention relates to a flow regulator in agricultural water-saving irrigation equipment, in particular to a micro-irrigation capillary inlet flow regulator suitable for micro-irrigation systems and having a series of flow values. Background technique [0002] In the drip irrigation system, due to the friction loss and the change of terrain, the pressure of each point of the branch pipe in the irrigation area is different, which makes the working pressure of each capillary inlet different, resulting in the different water output of each capillary, which reduces the uniformity of irrigation. The pressure compensation dripper can reduce the flow difference caused by the pressure deviation of the pipe network and improve the irrigation uniformity of the micro-irrigation system, but such a system is expensive. Proceeding from the actual situation in our country, installing a capillary flow regulator can improve the irrigation uniformity of the system an...

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Problems solved by technology

[0006] Generally speaking, the flow passage structure of the flow regulator is one of the main factors affecting its performance. The existing capillary inlet flow regulator flow passage structure in the market has defects, the flow regulation performance is not ideal, and the starting pressure difference is shown. Disadvantages such as too large, insufficient flow stability, and narrow suitable working pressure range; cylindrical silicone tubes or other complex elastic regulators require high processing accuracy, and manufacturing deviations are not easy to control, resulting in unstable performance of the flow regulator , low assembly efficiency

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