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Triangular circumferential motion drip irrigation douche irrigation device flow passage

An emitter and flow channel technology, applied in the field of agricultural water-saving irrigation, can solve problems such as difficulty in adapting to the development and promotion of drip irrigation technology, restricting the diversified development and application of drip irrigation emitter products, etc.

Inactive Publication Date: 2009-04-08
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of the emitter flow channel basically presents a single-mode maze-shaped flow channel, which restricts the diversified development and application of drip irrigation emitter products, and is difficult to adapt to the development and promotion of drip irrigation technology.

Method used

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  • Triangular circumferential motion drip irrigation douche irrigation device flow passage
  • Triangular circumferential motion drip irrigation douche irrigation device flow passage
  • Triangular circumferential motion drip irrigation douche irrigation device flow passage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] refer to figure 1 and figure 2 , the channels formed by the inlet 3 of the flow channel unit, the outer boundary 5 of the flow channel unit in a triangular plane projection, the inner boundary 6 of the flow channel unit in a triangular plane projection, and the outlet 8 of the flow channel unit form a flow channel unit. The inlet end of one unit is connected with the outlet end of the other unit, and several units are connected in turn to form a whole, forming a flow path of a triangular bypass drip irrigation emitter that is enlarged and reduced alternately in the longitudinal direction. The inlet diameter and outlet diameter of the same flow channel unit can be equal or unequal; the size of each flow channel unit can be the same or different; The size units are alternately arranged with one small size unit, or several large size units are alternately arranged with several small size units.

[0019] When the water flows through the sudden expansion of the channel se...

Embodiment 2

[0021] refer to image 3 and Figure 4 , the difference from Embodiment 1 is that the flow channel units are arranged in reverse.

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Abstract

The invention discloses a flow passage of a triangular circumferential flow drip irrigation douche. The flow passage is provided based on the flowing mechanism of a triangular circumferential flow, a sudden expansion tube, and a sudden contraction tube in hydraulics; a sudden expansion triangular flat cylinder, a sudden contraction triangular flat cylinder and a circumferential triangular flat cylinder which is inbuilt between the sudden expansion triangular flat cylinder and the sudden contraction triangular flat cylinder form a flow passage unit; and a plurality of flow passage units are sequentially connected into a whole so as to form the flow passage of the triangular circumferential flow drip irrigation douche. The flow passage of the drip irrigation douche has large overflow cross section and has hydraulic characteristic of the sudden expansion tube, the sudden contraction tube and the triangular circumferential flow; and flow in a main flow region has strong turbulent motion, high-efficiency energy dissipation effect and condensate conveying capacity, thereby strengthening the anti-blocking performance and water irrigating evenness of the drip irrigation douche. The flow passage can construct drip irrigation douches with various structural forms and can be widely suitable for the requirements of irrigating crops and vegetables in large fields and in the forest and fruit industry and the like.

Description

technical field [0001] The invention belongs to the technical field of agricultural water-saving irrigation, and relates to a flow channel of a drip irrigation dispenser, in particular to a flow channel of a triangular bypass drip irrigation dispenser. Background technique [0002] Drip irrigation is an internationally recognized high-efficiency water-saving irrigation technology. It has the advantages of uniform irrigation, high-efficiency water-saving and fertilizer-saving, increased production and income, and easy management. It is widely used by countries all over the world. The emitter is the core component of drip irrigation technology. Its main function is to dissipate the energy of the pressure water flow through the internal flow channel, so that the water flow can drip into the soil stably and evenly, which is decisive for the cost, energy consumption, irrigation quality and service life of the drip irrigation system. role. The structure, size and other factors of...

Claims

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Application Information

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IPC IPC(8): B05B1/20A01G25/00
Inventor 王新坤
Owner JIANGSU UNIV
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