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Jet oscillation drop irrigation emitter

A sprinkler and jet technology, applied in spraying devices, spraying devices, watering devices, etc., can solve the problems of difficult design and application, high oscillation pulse frequency of positive feedback oscillation pulse generator, etc., to increase anti-blocking ability, Efficient energy dissipation effect, effect of simplified structure

Inactive Publication Date: 2014-12-03
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Positive feedback oscillating pulse generator has high oscillating pulse frequency, which is difficult to master in design and application

Method used

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  • Jet oscillation drop irrigation emitter
  • Jet oscillation drop irrigation emitter
  • Jet oscillation drop irrigation emitter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] refer to figure 1 and image 3 The jet oscillating drip irrigation emitter shown in this embodiment is composed of a water inlet tank E, a jet element F and a flow channel body C. The water inlet tank E is provided with a filter window 1 and communicates with the inlet of the jet element F, and the outlet of the jet element F is connected to the inlet of the jet element F. The inlet of the flow channel body C is connected; the jet element F is composed of nozzle 3, control channel 4, control port I5, control port II6, jet space 7, side wall II8, side wall I9, splitter splitter 10, output port I11, output The front end of the jet element F is the nozzle 3, and the side walls on both sides of the outlet of the nozzle 3 are respectively provided with the control port Ⅰ5 and the control port Ⅱ6, and the control port Ⅰ5 and the control port Ⅱ6 are connected by the control channel 4. A jet space 7 with a small front and a large rear shape. The two sides of the jet space 7 ar...

Embodiment 2

[0027] refer to Figure 4 , Figure 6 , the basic structural features are similar to those of Example 1, and the difference from Example 1 is that the top of splitter splitter 10 is in a concave arc shape, and the flow channel I13 and flow channel II14 are respectively arranged in a U shape, with some differences in size. . refer to Figure 5 , the nozzle width B is 0.6mm, the ratio of the position difference S to the nozzle width B is 1:0.6, the ratio of the split distance L to the nozzle width B is 1:10, the opening angle θ is 16.3°, the nozzle depth and the nozzle width B The ratio is 1:1.3.

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Abstract

The invention discloses a jet oscillation drop irrigation emitter which is composed of a water inlet channel, a jet element and a runner body, wherein the water inlet channel is provided with a filter window and is connected with an inlet of the jet element, an outlet of the jet element is connected with an inlet of the runner body, and a water outlet channel is arranged at the tail end of the runner body. Water flow is driven to flow intermittently in two runners by using the Coanda technology and the negative pressure control oscillation technology to achieve the continuous oscillation and pulse process, strong turbulence and impact water flow form in the runners, and blocking resistance and irrigation uniformity of the emitter are improved. Elastic body structures such as rubber, plastic films and springs of the existing drop irrigation pulse generator are omitted, and the jet oscillation drop irrigation emitter has the advantages of being simple in structure and strong in reliability and durability. Materials, processing devices and processing methods of the existing drop irrigation emitter can be adopted, once injection forming is used, and the jet oscillation drop irrigation emitter is simple in processing technique, low in manufacture cost and convenient to install and use. The oscillation pulse drop irrigation emitter in various structural modes can be manufactured, and the jet oscillation drop irrigation emitter can be widely applied to irrigation of field crops, vegetables, forestry, the fruit industry and the like.

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 flow oscillation drip irrigation dispenser. 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 existing pulse generator is the core device for turning the pressure water flow in the drip irrigation system into a pulse water flow. Most pulse generators have an expandable and resettable elastic cavity, which is made of elastic materials such as rubber, plastic diaphragms or springs. constitute. The pressure water flow enters the elastic cavity, and the cavity begins to expand. As the pressure water continues to accumulate in the cavity, when the cavity expands to the limit, the water outlet is opened under the action of a diaphragm o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05B1/34A01G25/02
CPCY02A40/22
Inventor 王新坤
Owner JIANGSU UNIV
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