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Streamlined Insertion Pressure Compensated Emitter

A pressure compensation and sprinkler technology, applied in watering devices, gardening, agriculture, etc., can solve problems such as water head loss, achieve the effects of reducing head loss, increasing laying length, and improving conveying distance

Active Publication Date: 2021-08-31
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a streamlined plug-in pressure compensation emitter, which can solve the problem of water head loss caused by the sudden change in the shape of the capillary section caused by the protrusion of the plug, and minimize the shape resistance of the plug part of the emitter. Simple, with excellent hydrodynamic properties

Method used

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  • Streamlined Insertion Pressure Compensated Emitter
  • Streamlined Insertion Pressure Compensated Emitter
  • Streamlined Insertion Pressure Compensated Emitter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 and figure 2 As shown, a streamlined plug-in pressure-compensated emitter includes an emitter plug 1 with a dripper water inlet 2, and the lower part of the emitter plug 1 is sequentially connected with a cavity shell 12 and an outer cavity 16 of the water outlet from top to bottom. A base 10 is arranged in the shell 12, a dripper chamber 14 is arranged between the upper surface of the base 10 and the chamber shell 12, and an elastic gasket 5 is arranged in the dripper chamber 14, and a compensating gasket 5 is provided on the elastic gasket 5. The gasket hole connected to the water inlet 6 of the flow channel, the labyrinth flow channel 11 is provided between the side of the base 10 and the inner wall of the cavity shell 12, the water inlet 2 of the dripper passes through the gasket hole, the water inlet 6 of the compensation flow channel and the base 10 The pressure compensation flow channel 7 opened on the top communicates with the labyrinth flow c...

Embodiment 2

[0060] Such as figure 1 with figure 2 As shown, a streamlined plug-in pressure-compensated emitter includes an emitter plug 1 with a dripper water inlet 2, and the lower part of the emitter plug 1 is connected with a chamber shell 12 and a water outlet outer chamber 16 sequentially from top to bottom. A base 10 is arranged in the shell 12, a dripper chamber 14 is arranged between the upper surface of the base 10 and the chamber shell 12, and an elastic gasket 5 is arranged in the dripper chamber 14, and a compensating gasket 5 is provided on the elastic gasket 5. The gasket hole connected to the water inlet 6 of the flow channel, the labyrinth flow channel 11 is provided between the side of the base 10 and the inner wall of the cavity shell 12, the water inlet 2 of the dripper passes through the gasket hole, the water inlet 6 of the compensation flow channel and the base 10 The pressure compensation flow channel 7 opened on the top communicates with the labyrinth flow channe...

Embodiment 3

[0093] Figure 7 with Figure 8 The streamline distribution diagrams of streamlined emitter plugs and conical emitter plugs are given, from Figure 7 with Figure 8 As can be seen in the streamlined emitter plug, the flow distribution is more even. Near the water surface of the plug, there is no obvious difference in the low-velocity distribution of the two plugs, and the flow velocity of the streamlined emitter plug is slightly lower than that of the conical emitter plug. Near the outflow section of the plug, the flow velocity distribution of the two plugs is significantly different. After the water flows through the streamlined plug, it is never separated from the side wall. Near the outflow section of the plug, there is almost no low-speed vortex area. For the conical emitter plug, after the water flow reaches the outflow section, it is separated from the side wall of the plug, and an obvious low-speed vortex area appears downstream of the outflow section, resulting in a...

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Abstract

A streamlined plug-in pressure-compensated emitter, comprising an emitter plug with a dripper water inlet, the lower part of the emitter plug is sequentially connected with a chamber shell and an outer chamber of a water outlet from top to bottom, and a base is arranged inside the chamber shell, and the base A dripper cavity is arranged between the upper surface of the seat and the cavity shell, and an elastic gasket is arranged in the dripper cavity, and a gasket hole connected with the water inlet of the compensation flow channel is opened on the elastic gasket, and the side of the base is connected to the cavity shell. There is a labyrinth flow channel between the inner walls, and the water inlet of the dripper is connected with the labyrinth flow channel through the gasket hole, the water inlet of the compensation flow channel and the pressure compensation channel opened on the base, and then connected with the water outlet of the dripper in the outer chamber of the water outlet . The streamlined plug-in pressure-compensated emitter provided by the present invention can solve the problem of water head loss caused by sudden changes in the shape of the capillary section caused by the protrusion of the plug, minimize the shape resistance of the plug part of the emitter, and has a simple geometric shape and excellent fluid dynamics characteristic.

Description

technical field [0001] The invention relates to the design field of micro-irrigation emitters, in particular to a streamlined insertion type pressure compensation emitter. Background technique [0002] Drip irrigation is widely used as an efficient water-saving irrigation technology, and the plug-in emitter is widely used because of its simple installation, convenient maintenance and strong adaptability. Because the plug part of the plug-in emitter is inserted into the capillary, a protrusion will be formed in the pipe. The plug protrusion will cause a sudden change in the cross-sectional shape of the capillary, resulting in local water head loss. Therefore, low-pressure drip irrigation has become a popular technology in the field of drip irrigation due to its remarkable energy-saving and quality-improving effects. However, the operating pressure of low-pressure drip irrigation is low. How to minimize the loss of water head in the pipe network under low pressure conditions, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G25/02
CPCA01G25/023
Inventor 王亚林朱士江鞠学良吕从聪
Owner CHINA THREE GORGES UNIV
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