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A Method for Determining the Position of Attachment Point of Full Jet Nozzle

A full-jet, point-position technology, applied in the direction of measuring devices, mechanical devices, mechanical measuring devices, etc., can solve the problems of not applying for patents, etc.

Active Publication Date: 2015-11-18
JIANGSU UNIV ZHENJIANG RES INST OF FLUID ENG EQUIP TECH
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  • A Method for Determining the Position of Attachment Point of Full Jet Nozzle
  • A Method for Determining the Position of Attachment Point of Full Jet Nozzle
  • A Method for Determining the Position of Attachment Point of Full Jet Nozzle

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Embodiment Construction

[0018] The invention provides a method for determining the position of the attachment point of a full-jet nozzle. In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments are listed below and described in detail in conjunction with the accompanying drawings.

[0019] Such as figure 1 As shown, first, a transparent plexiglass 30PXH full-jet nozzle that can observe the internal flow conditions was selected as the test prototype. Before the test, a scale 3 was pasted on the outside of the 30PXH full-jet nozzle. The zero point is the exit position of the base circle hole 5 .

[0020] Next, use the conduit 1 to connect the signal nozzle 2 and the water inlet nozzle 4 of the full-jet nozzle, set the working pressure of the nozzle to 400kPa, and keep the full-jet nozzle in a stable working state. After the nozzle has been working stably for 20 minutes, start to measure and record the test data.

[00...

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Abstract

The invention relates to a method for determining the position of a wall attachment point of a full-jet nozzle. Firstly, the material of the full-jet nozzle prototype selected is transparent plexiglass that can observe the internal flow conditions, and a scale scale is pasted on the outside of the full-jet nozzle to keep the full-jet nozzle in a stable working state, disconnect the conduit and the signal nozzle Connect, keep the connection between the conduit and the water inlet nozzle, block the inlet of the conduit with your fingers, observe the internal flow conditions of the full-jet nozzle, and read the distance from the uppermost part of the main jet to the starting point s , and at the same time read the distance from the bottom part of the main jet to the starting point t . Calculate h =( s + t ) / 2 is the distance between the position of the wall attachment point of the full-jet nozzle and the outlet of the base circle under the set working pressure. Through the technical method of the present invention, the specific position of the wall attachment point of the full-jet nozzle under a certain pressure can be determined, thereby providing a basis for studying the size of the rotational driving force of the full-jet nozzle and the specific structural design of the full-jet nozzle.

Description

technical field [0001] The invention relates to a method for determining the internal flow field of a full-jet nozzle, in particular to a method for determining the position of a wall attachment point of a full-jet nozzle. Background technique [0002] The full-jet nozzle is a new type of sprinkler irrigation equipment. Its internal flow field includes two states: direct jet and wall-attached. First, the left and right sides of the full-jet nozzle are filled with air, the pressure on the left and right sides is equal, and the main jet is directed. , the nozzle is still; then by intercepting the signal water, there is no air in the right cavity of the full-jet nozzle, the pressure on the left is higher than that on the right, the main jet flows to the right wall, and the water flow after the wall pushes the nozzle to complete the rotation sports. [0003] For a full-jet nozzle, the position of the attachment point determines the size of the rotational driving force it obtain...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/00
Inventor 朱兴业袁寿其刘俊萍李红
Owner JIANGSU UNIV ZHENJIANG RES INST OF FLUID ENG EQUIP TECH
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