Damping nozzle water drop average diameter distribution model building method
A technology of average diameter and establishment method, which is applied in special data processing applications, instruments, electrical digital data processing, etc., and can solve problems such as not applying for patents
Active Publication Date: 2016-09-07
JIANGSU UNIV
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[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.
[0026] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the method for establishing the average diameter distribution model of water droplets in a damping nozzle with water-spreading teeth is taken as an example to describe in detail as follows.
[0027] (1) Select the R33 nozzle of Nelson Company, the diameter of the nozzle is 3.6mm, and the working pressure is respectively selected as 175kPa, 200kPa, 250kPa, and 300kPa.
[0028] (2) Fix the nozzle so that the jet water column contacts the water spout, place a laser raindrop spectrometer at every 1m in the radial direction from the nozzle, record the number of different water droplet diameters at different distances from the nozzle (1m, 2m...
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The invention provides a damping nozzle water drop average diameter distribution model building method and belongs to water drop average diameter distribution model building methods in water-saving irrigation sprinkling-irrigation systems. The method specifically includes: under N working pressures (N>3), fixing a nozzle to enable a jet water column to contact with a water dispersing tooth, utilizing a laser raindrop spectrometer to conduct a nozzle outer flow field water drop diameter distribution experiment, recording and organizing data, calculating water drop average diameter, and utilizing a formula to fit a relation formula between the water drop average diameter and a distance to the nozzle as well as the working pressure; fixing the nozzle to enable the jet water column not to contact with the water dispersing tooth, utilizing the laser raindrop spectrometer to conduct a nozzle outer flow field water drop diameter distribution experiment, recording and organizing data, calculating water drop average diameter, and utilizing a formula to fit a relation formula between the water drop average diameter and a distance to the nozzle as well as the working pressure. The method which is improved provides a theoretical basis for establishing a nozzle outer flow field water drop average diameter formula.
Description
technical field [0001] The invention relates to a method for establishing a water droplet average diameter distribution model of a sprinkler head in a water-saving irrigation sprinkler irrigation system, in particular to a method for establishing a water droplet average diameter distribution model for a damping sprinkler head with water spreading teeth. Background technique [0002] As an advanced water-saving irrigation technology, sprinkler irrigation has the advantages of saving water, labor, increasing crop yield, improving the uniformity of irrigation in cultivated land, and maintaining water and soil. Sprinkler irrigation can be used to achieve the goal of agricultural mechanization and automation. Sprinkler is the key equipment of sprinkler irrigation. Traditional sprinklers such as rocker sprinklers have been widely used in real life. At present, damping nozzles have gradually replaced traditional nozzles due to their better uniformity and lower irrigation intensity....
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Login to View More IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 刘俊萍鲍亚
Owner JIANGSU UNIV