Multifunctional low-pressure spray irrigation nozzle

Abstract

The invention belongs to the technical field of fluid machinery and particularly discloses a multifunctional low-pressure spray irrigation nozzle. The multifunctional low-pressure spray irrigation nozzle comprises an adjusting tube, an air inlet connector, a connection tube, a switching device and a fixed base, wherein the adjusting tube is arranged on the inner side of a spray tube; one end of the air inlet connector stretches into a nozzle flow channel and is fixedly connected to the adjusting tube; the other end of the air inlet connector is arranged outside the spray tube; one end of the connection tube is connected to the air inlet connector, and the other end of the connection tube is connected to the switching device; the fixed base sleeves the outer side of a hollow shaft and is fixed; the switching device is fixed on the fixed base; the switching device comprises a switching device inner core, a switching device shell and a fertilizer-pesticide barrel switching device; an inner core hole I and an inner core hole II which are connected with each other are processed in the switching device inner core; a shell hole I, a shell hole II and a shell hole III are processed in the switching device shell; through regulation of connection manners of the holes in the switching device inner core and the switching device shell, the functions of pumping air or pumping fertilizers and pumping pesticides of the nozzle can be achieved.

Description

technical field [0001] The invention belongs to the technical field of agricultural sprinkler irrigation and fluid machinery, and relates to a sprinkler device, in particular to a sprinkler irrigation device integrating water, fertilizer, gas and medicine. Background technique [0002] The sprinkler head is one of the key equipment for sprinkler irrigation. Its main performance parameters include range, uniformity of water distribution, and sprinkler intensity. In recent years, sprinkler irrigation technology is developing in the direction of water saving, low pressure, energy saving and multi-purpose. The main way for the sprinkler irrigation system to achieve energy saving is to reduce the working pressure of the system. However, when the sprinkler works at a lower pressure, there is often poor radial water distribution, and the diameter of the water droplets at the end of the range is too large, which affects the quality of the sprinkler irrigation water. How to make the ...

AI Technical Summary

Problems solved by technology

The method of adjusting the range can improve the uniformity of sprinkler irrigation, but under low pressure conditions, the problem of large droplet diameter cannot be solved

[0005] Chinese patent CN105032639A discloses "a low-pressure sprinkler head for mobile sprinkler irrigation", which uses a spray plate with multiple flow channels, and the included angles of the flow channels on the spray plate are the same, so that the water sprayed by different flow channels covers different areas to achieve low pressure Uniform spraying of nozzles, but the nozzles using the nozzle structure have a short range and cannot replace the nozzles with medium and long ranges

However, due to the inconsistency of irrigation water in different areas of the irrigation system, there are also certain differences in the amount of fertilizer applied in different areas.

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