Antiplugging drip irrigation irrigator design method

A design method and technology for irrigators, which are applied in the directions of botanical equipment and methods, instruments, and calculations, can solve problems that do not conform to the development trend of drip irrigation equipment and are uneconomical, so as to inhibit the growth of microorganisms, enhance the scouring effect, and inhibit the deposition of impurities. Effect

Inactive Publication Date: 2007-08-22
内蒙古兆通管道系统有限公司
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Problems solved by technology

However, the above optimization methods have given little consideration to the maintenance of the hydraulic performance of the dripper. It is necessary to increase the length of the flow channel to make up for the lack of stable energy dissipation. This is neither economical nor in line with the current development trend of drip irrigation equipment.

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  • Antiplugging drip irrigation irrigator design method
  • Antiplugging drip irrigation irrigator design method
  • Antiplugging drip irrigation irrigator design method

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Embodiment Construction

[0032] The typical specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] The method of the present invention adopts the method of numerical simulation to trim the flow channel structure, and the following takes the sub-form flow channel of the drip irrigation dispenser as an example to specifically illustrate the design steps of its flow channel structure optimization:

[0034] 1. Construct the structural model of the fractal flow channel of the drip irrigation emitter, divide the model into meshes and set the boundary conditions of the calculation area;

[0035] Fig. 1 is the fractal flow channel (before optimization) structural plan view that the present invention adopts, as shown in Figure 1, adopts Auto CAD software to realize the geometric modeling of flow chan...

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Abstract

This invention provides a designing method for anti-jam drop-fill douches including: 1, setting up a structure model of the runner of a douche to divide it into lattices and design the border condition of the computed regions, 2, applying CFD evaluator to compute the runner of the drop head, 3, getting the velocity of flow field and eddy distribution parameter and determining the position of low flow rate regions in the head runner and the decision factor for pressure energy dissipation, 4, finishing borders of the runner structure and changing the tooth structure to reduce brush of the tooth tine place and the back surface to the runner borders to strengthen the eddy structure of the flow field, 5, computing repeatedly and balancing flow field parameters in the front and back runners to decide the anti-jam ability of the douche and testing the flow-pressure relation of the douche to guarantee its water power performance.

Description

technical field [0001] The invention relates to the technical field of agricultural water-saving irrigation, in particular to a design method of an anti-clogging drip irrigation emitter. Background technique [0002] The emitter (drip head) is one of the key components of the drip irrigation system. Its working principle is to make the pressurized water flow through the narrow and long channels or micropores inside it to fully dissipate energy, and drip into the soil at a stable and uniform low flow rate. The performance of the emitter has a great influence on the uniformity of irrigation, water saving and system life of the entire drip irrigation system. Flow channel blockage is a frequent phenomenon in emitters, and it has always been the bottleneck that inhibits the development of drip irrigation. Studies have shown that even if various physical and chemical methods are used to treat it, the flow channel blockage of emitters still cannot be eliminated. This is directly r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50A01G25/02
CPCY02A40/22
Inventor 杨培岭闫大壮任树梅李云开赵桥苏艳萍
Owner 内蒙古兆通管道系统有限公司
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