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Peristaltic micro-irrigation emitter

A water device and micro technology, applied in watering devices, fluid flow, gardening, etc., can solve the problem of easy loss of irrigation uniformity, and achieve the effects of excellent anti-clogging performance, increased flow cross-section, and excellent irrigation uniformity.

Inactive Publication Date: 2010-06-23
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing emitter structures mainly include orifice type, vortex type, micro-tube long flow channel type, screw type, labyrinth type, double-cavity tube type, pressure compensation type, etc., mainly through local, along-way head loss and elastic material Energy dissipation can be achieved by changing the cross-flow section to obtain flow uniformity. By increasing the width and depth of the flow channel and reducing the length of the flow channel, it is beneficial to improve the anti-clogging performance, but it is easy to lose the uniformity of irrigation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] refer to figure 1 The main structure of the peristaltic micro-irrigation emitter is composed of the shell 1, the runner 2, the fine elastic hose 3, the runner blade 5 and the rotating shaft 4. The fine hose, runner and shaft are all packaged in the casing, and the blades on the runner press on the hose, making the partial section of the hose flat. The water flows in from one end of the hose, pushes the blades, and drives the runner to rotate. With the rotation of the runner, the blades periodically press the hose, and the hose is squeezed and released alternately, so that the water flows in a peristaltic state, and finally flows out from the other end of the hose, thereby obtaining a strong solidification transport capacity. The required emitter flow rate can be obtained by changing the diameter of the hose and the rotation speed of the runner, and good irrigation uniformity can be obtained by controlling the rotation uniformity of the runner.

Embodiment 2

[0014] refer to figure 2 The main structure of the peristaltic micro-irrigation emitter is composed of the shell 1, the runner 2, the fine elastic hose 3, the runner protrusion 6, and the rotating shaft 4. The tiny hose, the runner and the rotating shaft are all packaged in the housing, and the protrusions on the runner press on the hose, making the partial section of the hose flat. The water flows in from one end of the hose, pushes the blades, and drives the runner to rotate. With the rotation of the runner, the protrusions on the runner periodically press the hose, and the hose is squeezed and released alternately, so that the water flows out from the other end of the hose in a peristaltic state, forming a peristaltic flow, thus obtaining a strong solidified transport capacity. The required emitter flow rate can be obtained by changing the diameter of the hose and the rotation speed of the runner, and good irrigation uniformity can be obtained by controlling the rotation...

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Abstract

The invention discloses a peristaltic micro-irrigation emitter, which comprises a shell (1), an elastic micro hose (3), a rotary wheel (2) and a rotary shaft (4). The elastic micro hose (3), the rotary wheel (2) and the rotary shaft (4) are packaged in the shell (1), and the rotary wheel (2) is provided with blades (5) or arc-shaped projections (6), which are positioned outside the elastic micro hose (3) and contacted with the elastic micro hose (3) to press the hose (3). Water flows in via one end of the hose (3) to push the blades (5) or the arc-shaped projections (6), the rotary wheel (2) is driven to rotate, the hose (3) is periodically pressed, and thereby is alternately squeezed and released, and as a result, the water can peristaltically flows out via the other end of the hose (3). The micro-irrigation emitter with the structure has a large water-carrying section, the hydraulic characteristics of peristaltic flow and high cured material-transferring capability. Moreover, the needed emitter flow can be obtained by controlling the diameter of the hose (3) and the rotating speed of the rotary wheel (2), and good irrigation uniformity can be obtained by controlling the rotating uniformity of the rotary wheel (2).

Description

technical field [0001] The invention belongs to the technical field of agricultural water-saving irrigation, and relates to a micro-irrigation dispenser, in particular to a peristaltic micro-irrigation dispenser structure. Background technique [0002] Micro-irrigation is an advanced water-saving irrigation technology. The emitter is the core component of the micro-irrigation system. Factors such as its structure and size determine the working characteristics such as outflow uniformity and anti-clogging ability. The research and development of emitters has always been a focus in the field of micro-irrigation. Existing emitter structures mainly include orifice type, vortex type, micro-tube long flow channel type, screw type, labyrinth type, double-cavity tube type, pressure compensation type, etc., mainly through local, along-way head loss and elastic material Energy dissipation can be carried out by changing the cross-flow section to obtain flow uniformity. By increasing th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15D1/00A01G25/00A01G25/16
Inventor 王新坤
Owner JIANGSU UNIV
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