Nozzle configuring method and system of round sprinkling machine

A technology for sprinkler irrigation machines and sprinklers, which is applied in the field of control, and can solve the problems of reducing the configuration accuracy and not considering the drooping pipe part of the sprinkler.

Inactive Publication Date: 2018-04-06
PIERCE TIANJIN IRRIGATION EQUIP
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  • Abstract
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Problems solved by technology

The mathematical model and related methods for the configuration of traditional circular sprinklers when the nozzles are arranged at equal intervals, but the hydraulic loss calculation does not take into account the drooping pipe part of the nozzles, which reduces the configuration accuracy to a certain extent

Method used

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  • Nozzle configuring method and system of round sprinkling machine
  • Nozzle configuring method and system of round sprinkling machine
  • Nozzle configuring method and system of round sprinkling machine

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Embodiment Construction

[0048] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0049] In one embodiment, such as figure 1 As shown, a nozzle configuration method of a circular sprinkler is provided, and the method includes the following steps:

[0050] Step 101, obtaining the actual working pressure value of each sprinkler head of the circular sprinkler.

[0051] In the interval from the central pivot of the circular sprinkler to the end nozzle, the hydraulic loss along the main water pipe between the i-th nozzle and the i+1-th nozzle is

[0052]

[0053] h f(i,i+1) is the water head loss along the main water pipe between the i-th and i+1 nozzles; f is the friction coef...

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Abstract

The present invention relates to a nozzle configuration method and system of a circular sprinkler irrigation machine, wherein the method includes: obtaining the actual working pressure value of each nozzle head of the circular sprinkler irrigation machine; obtaining the expected flow value of each nozzle head; according to the actual working pressure value Calculate the nozzle diameter corresponding to each nozzle with the expected flow value; configure the nozzles whose models match the nozzle diameter in sequence; calculate the actual working flow value of each nozzle according to the actual working pressure value and nozzle diameter; calculate the The deviation coefficient between the actual working flow and the expected flow; according to the deviation coefficient, configure the working mode of the corresponding pressure regulator of each nozzle, so that the deviation coefficient is within the threshold range, and the above method and system improve the configuration accuracy of the circular sprinkler .

Description

technical field [0001] The invention relates to the technical field of control, in particular to a nozzle configuration method and system for a circular sprinkler irrigation machine. Background technique [0002] The circular sprinkler, also known as the center pivot sprinkler, is by far the most mechanized and automated sprinkler unit. The main water delivery pipe rotates around the central axis when the sprinkler head of the circular sprinkler is spraying. The flow configuration method starts from the center pivot and gradually increases the water spray volume from the inside to the outside of the nozzle. At present, the vast majority of circular sprinkler irrigation machines use low-pressure nozzles installed under suspension, with a nozzle spacing of 2.3m to 4.8m, and the number of nozzles in the whole machine is 30 to 200. The manual configuration is cumbersome and the accuracy is difficult to guarantee. Therefore, establishing a mathematical model of nozzle configura...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G25/09A01G25/16
CPCA01G25/09A01G25/16
Inventor 张雪张忠超
Owner PIERCE TIANJIN IRRIGATION EQUIP
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