Positive pressure feedback jet pulse water dropper and drip irrigation system

A jet and pulse technology, which is applied in the field of positive pressure feedback jet pulse dripper and drip irrigation system, can solve the problems of incomplete deflection of water flow, small amplitude, large dripper flow rate, etc., and achieve the effect of convenient construction and installation and reduced manufacturing cost

Pending Publication Date: 2022-03-25
SHANDONG INST OF ADVANCED TECH CHINESE ACAD OF SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the pulse drip irrigation formed by the existing water jet technology, the deflection of the water flow is not complete, and the jet flow will be output in the two flow channels at the same time, resulting in a larger flow rate and a smaller amplitude.

Method used

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  • Positive pressure feedback jet pulse water dropper and drip irrigation system
  • Positive pressure feedback jet pulse water dropper and drip irrigation system
  • Positive pressure feedback jet pulse water dropper and drip irrigation system

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Such as Figure 1-Figure 2 As shown, the present embodiment provides a positive pressure feedback jet pulse dripper, preferably a sheet-type positive pressure feedback jet pulse dripper, which mainly includes an upper cover 1, a main body 2 and a lower cover 3; There is a water filter port 4, and the lower cover plate 3 is provided with a water outlet hole 6; the main body 2 includes a water inlet tank 2-1, a shrink tube 2-2, a jet tube 2-3, a water pressure feedback tube 2-4, and a jet cavity 2-5 , water diversion plate 2-6, splitter splitter 2-7, flow channel 2-8, water outlet cavity 2-9, limit block 2-10; water inlet tank 2-1 is located at the front end of main body 2, water inlet tank 2-1 A shrinking tube 2-2 with a large front and a small rear is connected afterwards, and a rectangular jet tube 2-3 is connected after the shrink tube 2-2, and a trapezoidal jet cavity 2-5 with a small front and a large rear is connected after the jet tube 2-3; A hole is respectively...

Embodiment 2

[0045] This embodiment is an improvement made on the basis of Embodiment 1, and its improvements are as follows: Figure 3-Figure 4 As shown, the positive pressure feedback jet pulse dripper is a cylindrical positive pressure feedback jet pulse dripper, and the splitter 2-7 of the cylindrical positive pressure feedback jet pulse dripper divides the jet chamber 2-5 into two channels, and the two streams The front ends of the channels 2-8 communicate with two adjacent channels respectively, wherein the flow channels 2-8 may include a plurality of vertical channels connected in sequence from end to end, and the hydraulic feedback pipes 2-4 are arranged around the circumference.

[0046] When a cylindrical positive pressure feedback jet pulse dripper is set in the drip irrigation pipeline, the outer surface of the cylindrical positive pressure feedback jet pulse dripper is embedded on the inner wall of the drip irrigation pipeline, and corresponds to the center of the water outlet ...

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PUM

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Abstract

The invention discloses a positive pressure feedback jet pulse emitter, and relates to the technical field of water-saving agriculture, the positive pressure feedback jet pulse emitter comprises a main body, the main body is connected with a water filtering port, a jet cavity is arranged in the main body, and the tail end of the jet cavity is connected with two flow channels; the tail ends of the two flow channels are connected with water outlet cavities, the two water outlet cavities are connected to the same water outlet hole, a plugging device is further arranged between the tail ends of the two flow channels, and the plugging device can plug one flow channel under the impact effect of water flow. The tail ends of the two flow channels are each connected with a water pressure feedback pipe, and the water pressure feedback pipes are further connected with the top end of the jet flow cavity so as to change the flow direction of fluid in the jet flow cavity. The invention further discloses a drip irrigation system adopting the positive pressure feedback jet pulse water dropper. The pulse amplitude can be increased, the pulse turbulence intensity can be improved, the average outflow of the water dropper is reduced, irrigation is more uniform, and the anti-blocking capacity can be improved.

Description

technical field [0001] The invention relates to the technical field of water-saving agriculture, in particular to a positive pressure feedback jet pulse dripper and a drip irrigation system. Background technique [0002] Drip irrigation is an efficient water-saving irrigation technology, which has a wide range of application areas around the world. Clogging is a key technical problem affecting the development and application of drip irrigation technology. The development of water and fertilizer integration technology, high-sediment water drip irrigation technology, and brackish water drip irrigation technology has put forward new requirements for drip irrigation anti-clogging technology. [0003] Pulse drip irrigation technology has the characteristics of strong anti-clogging performance and high irrigation uniformity, and is an effective way to solve the problem of drip irrigation clogging. Most of the existing pulse drip irrigation technologies are based on frequency con...

Claims

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Application Information

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IPC IPC(8): A01G25/02A01G25/16
CPCA01G25/023A01G25/165A01G25/16Y02A40/22
Inventor 邵壮李卫民叶亮毕庆王森
Owner SHANDONG INST OF ADVANCED TECH CHINESE ACAD OF SCI CO LTD
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